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// SPDX-License-Identifier: GPL-3.0-or-later

pragma solidity ^0.8.24;

import { SafeCast } from "@openzeppelin/contracts/utils/math/SafeCast.sol";

import { ISwapFeePercentageBounds } from "@balancer-labs/v3-interfaces/contracts/vault/ISwapFeePercentageBounds.sol";
import {
    IUnbalancedLiquidityInvariantRatioBounds
} from "@balancer-labs/v3-interfaces/contracts/vault/IUnbalancedLiquidityInvariantRatioBounds.sol";
import { IBasePool } from "@balancer-labs/v3-interfaces/contracts/vault/IBasePool.sol";
import { IVault } from "@balancer-labs/v3-interfaces/contracts/vault/IVault.sol";
import {
    IStablePool,
    StablePoolDynamicData,
    StablePoolImmutableData,
    AmplificationState
} from "@balancer-labs/v3-interfaces/contracts/pool-stable/IStablePool.sol";
import "@balancer-labs/v3-interfaces/contracts/vault/VaultTypes.sol";

import { BasePoolAuthentication } from "@balancer-labs/v3-pool-utils/contracts/BasePoolAuthentication.sol";
import { BalancerPoolToken } from "@balancer-labs/v3-vault/contracts/BalancerPoolToken.sol";
import { FixedPoint } from "@balancer-labs/v3-solidity-utils/contracts/math/FixedPoint.sol";
import { StableMath } from "@balancer-labs/v3-solidity-utils/contracts/math/StableMath.sol";
import { Version } from "@balancer-labs/v3-solidity-utils/contracts/helpers/Version.sol";
import { PoolInfo } from "@balancer-labs/v3-pool-utils/contracts/PoolInfo.sol";

/**
 * @notice Standard Balancer Stable Pool.
 * @dev Stable Pools are designed for assets that are either expected to consistently swap at near parity,
 * or at a known exchange rate. Stable Pools use `StableMath` (based on StableSwap, popularized by Curve),
 * which allows for swaps of significant size before encountering substantial price impact, vastly
 * increasing capital efficiency for like-kind and correlated-kind swaps.
 *
 * The `amplificationParameter` determines the "flatness" of the price curve. Higher values "flatten" the
 * curve, meaning there is a larger range of balances over which tokens will trade near parity, with very low
 * slippage. Generally, the `amplificationParameter` can be higher for tokens with lower volatility, and pools
 * with higher liquidity. Lower values more closely approximate the "weighted" math curve, handling greater
 * volatility at the cost of higher slippage. This parameter can be changed through permissioned calls
 * (see below for details).
 *
 * The swap fee percentage is bounded by minimum and maximum values (same as were used in v2).
 */
contract StablePool is IStablePool, BalancerPoolToken, BasePoolAuthentication, PoolInfo, Version {
    using FixedPoint for uint256;
    using SafeCast for *;

    // This contract uses timestamps to slowly update its Amplification parameter over time. These changes must occur
    // over a minimum time period much larger than the block time, making timestamp manipulation a non-issue.
    // solhint-disable not-rely-on-time

    // Amplification factor changes must happen over a minimum period of one day, and can at most divide or multiple the
    // current value by 2 every day.
    // WARNING: this only limits *a single* amplification change to have a maximum rate of change of twice the original
    // value daily. It is possible to perform multiple amplification changes in sequence to increase this value more
    // rapidly: for example, by doubling the value every day it can increase by a factor of 8 over three days (2^3).
    uint256 private constant _MIN_UPDATE_TIME = 1 days;
    uint256 private constant _MAX_AMP_UPDATE_DAILY_RATE = 2;

    // Fees are 18-decimal, floating point values, which will be stored in the Vault using 24 bits.
    // This means they have 0.00001% resolution (i.e., any non-zero bits < 1e11 will cause precision loss).
    // Minimum values help make the math well-behaved (i.e., the swap fee should overwhelm any rounding error).
    // Maximum values protect users by preventing permissioned actors from setting excessively high swap fees.
    uint256 private constant _MIN_SWAP_FEE_PERCENTAGE = 1e12; // 0.0001%
    uint256 private constant _MAX_SWAP_FEE_PERCENTAGE = 10e16; // 10%

    /// @notice Store amplification state.
    AmplificationState private _amplificationState;

    /**
     * @notice An amplification update has started.
     * @param startValue Starting value of the amplification parameter
     * @param endValue Ending value of the amplification parameter
     * @param startTime Timestamp when the update starts
     * @param endTime Timestamp when the update is complete
     */
    event AmpUpdateStarted(uint256 startValue, uint256 endValue, uint256 startTime, uint256 endTime);

    /**
     * @notice An amplification update has been stopped.
     * @param currentValue The value at which it stopped
     */
    event AmpUpdateStopped(uint256 currentValue);

    /// @notice The amplification factor is below the minimum of the range (1 - 5000).
    error AmplificationFactorTooLow();

    /// @notice The amplification factor is above the maximum of the range (1 - 5000).
    error AmplificationFactorTooHigh();

    /// @notice The amplification change duration is too short.
    error AmpUpdateDurationTooShort();

    /// @notice The amplification change rate is too fast.
    error AmpUpdateRateTooFast();

    /// @notice Amplification update operations must be done one at a time.
    error AmpUpdateAlreadyStarted();

    /// @notice Cannot stop an amplification update before it starts.
    error AmpUpdateNotStarted();

    /**
     * @notice Parameters used to deploy a new Stable Pool.
     * @param name ERC20 token name
     * @param symbol ERC20 token symbol
     * @param amplificationParameter Controls the "flatness" of the invariant curve. higher values = lower slippage,
     * and assumes prices are near parity. lower values = closer to the constant product curve (e.g., more like a
     * weighted pool). This has higher slippage, and accommodates greater price volatility
     * @param version The stable pool version
     */
    struct NewPoolParams {
        string name;
        string symbol;
        uint256 amplificationParameter;
        string version;
    }

    constructor(
        NewPoolParams memory params,
        IVault vault
    )
        BalancerPoolToken(vault, params.name, params.symbol)
        BasePoolAuthentication(vault, msg.sender)
        PoolInfo(vault)
        Version(params.version)
    {
        if (params.amplificationParameter < StableMath.MIN_AMP) {
            revert AmplificationFactorTooLow();
        }
        if (params.amplificationParameter > StableMath.MAX_AMP) {
            revert AmplificationFactorTooHigh();
        }

        uint256 initialAmp = params.amplificationParameter * StableMath.AMP_PRECISION;
        _stopAmplification(initialAmp);
    }

    /// @inheritdoc IBasePool
    function computeInvariant(uint256[] memory balancesLiveScaled18, Rounding rounding) public view returns (uint256) {
        (uint256 currentAmp, ) = _getAmplificationParameter();

        uint256 invariant = StableMath.computeInvariant(currentAmp, balancesLiveScaled18);
        if (invariant > 0) {
            invariant = rounding == Rounding.ROUND_DOWN ? invariant : invariant + 1;
        }

        return invariant;
    }

    /// @inheritdoc IBasePool
    function computeBalance(
        uint256[] memory balancesLiveScaled18,
        uint256 tokenInIndex,
        uint256 invariantRatio
    ) external view returns (uint256 newBalance) {
        (uint256 currentAmp, ) = _getAmplificationParameter();

        return
            StableMath.computeBalance(
                currentAmp,
                balancesLiveScaled18,
                computeInvariant(balancesLiveScaled18, Rounding.ROUND_UP).mulUp(invariantRatio),
                tokenInIndex
            );
    }

    /// @inheritdoc IBasePool
    function onSwap(PoolSwapParams memory request) public view virtual onlyVault returns (uint256) {
        uint256 invariant = computeInvariant(request.balancesScaled18, Rounding.ROUND_DOWN);
        (uint256 currentAmp, ) = _getAmplificationParameter();

        if (request.kind == SwapKind.EXACT_IN) {
            uint256 amountOutScaled18 = StableMath.computeOutGivenExactIn(
                currentAmp,
                request.balancesScaled18,
                request.indexIn,
                request.indexOut,
                request.amountGivenScaled18,
                invariant
            );

            return amountOutScaled18;
        } else {
            uint256 amountInScaled18 = StableMath.computeInGivenExactOut(
                currentAmp,
                request.balancesScaled18,
                request.indexIn,
                request.indexOut,
                request.amountGivenScaled18,
                invariant
            );

            return amountInScaled18;
        }
    }

    /// @inheritdoc IStablePool
    function startAmplificationParameterUpdate(uint256 rawEndValue, uint256 endTime) external authenticate {
        if (rawEndValue < StableMath.MIN_AMP) {
            revert AmplificationFactorTooLow();
        }
        if (rawEndValue > StableMath.MAX_AMP) {
            revert AmplificationFactorTooHigh();
        }

        uint256 duration = endTime - block.timestamp;
        if (duration < _MIN_UPDATE_TIME) {
            revert AmpUpdateDurationTooShort();
        }

        (uint256 currentValue, bool isUpdating) = _getAmplificationParameter();
        if (isUpdating) {
            revert AmpUpdateAlreadyStarted();
        }

        uint256 endValue = rawEndValue * StableMath.AMP_PRECISION;

        // daily rate = (endValue / currentValue) / duration * 1 day
        // We perform all multiplications first to not reduce precision, and round the division up as we want to avoid
        // large rates. Note that these are regular integer multiplications and divisions, not fixed point.
        uint256 dailyRate = endValue > currentValue
            ? (endValue * 1 days).divUpRaw(currentValue * duration)
            : (currentValue * 1 days).divUpRaw(endValue * duration);

        if (dailyRate > _MAX_AMP_UPDATE_DAILY_RATE) {
            revert AmpUpdateRateTooFast();
        }

        // Values are 18 decimal floating point, which fits in 64 bits. Timestamps are 32 bits.
        uint64 currentValueUint64 = currentValue.toUint64();
        uint64 endValueUint64 = endValue.toUint64();
        uint32 startTimeUint32 = block.timestamp.toUint32();
        uint32 endTimeUint32 = endTime.toUint32();

        _amplificationState.startValue = currentValueUint64;
        _amplificationState.endValue = endValueUint64;
        _amplificationState.startTime = startTimeUint32;
        _amplificationState.endTime = endTimeUint32;

        emit AmpUpdateStarted(currentValueUint64, endValueUint64, startTimeUint32, endTimeUint32);
        _vault.emitAuxiliaryEvent(
            "AmpUpdateStarted",
            abi.encode(currentValueUint64, endValueUint64, startTimeUint32, endTimeUint32)
        );
    }

    /// @inheritdoc IStablePool
    function stopAmplificationParameterUpdate() external authenticate {
        (uint256 currentValue, bool isUpdating) = _getAmplificationParameter();

        if (isUpdating == false) {
            revert AmpUpdateNotStarted();
        }

        _stopAmplification(currentValue);
        _vault.emitAuxiliaryEvent("AmpUpdateStopped", abi.encode(currentValue));
    }

    /// @inheritdoc IStablePool
    function getAmplificationParameter() external view returns (uint256 value, bool isUpdating, uint256 precision) {
        (value, isUpdating) = _getAmplificationParameter();
        precision = StableMath.AMP_PRECISION;
    }

    /// @inheritdoc IStablePool
    function getAmplificationState()
        external
        view
        returns (AmplificationState memory amplificationState, uint256 precision)
    {
        amplificationState = _amplificationState;
        precision = StableMath.AMP_PRECISION;
    }

    function _getAmplificationParameter() internal view returns (uint256 value, bool isUpdating) {
        AmplificationState memory state = _amplificationState;

        (uint256 startValue, uint256 endValue, uint256 startTime, uint256 endTime) = (
            state.startValue,
            state.endValue,
            state.startTime,
            state.endTime
        );

        // Note that block.timestamp >= startTime, since startTime is set to the current time when an update starts

        if (block.timestamp < endTime) {
            isUpdating = true;

            // We can skip checked arithmetic as:
            //  - block.timestamp is always larger or equal to startTime
            //  - endTime is always larger than startTime
            //  - the value delta is bounded by the largest amplification parameter, which never causes the
            //    multiplication to overflow.
            // This also means that the following computation will never revert nor yield invalid results.
            unchecked {
                if (endValue > startValue) {
                    value =
                        startValue +
                        ((endValue - startValue) * (block.timestamp - startTime)) /
                        (endTime - startTime);
                } else {
                    value =
                        startValue -
                        ((startValue - endValue) * (block.timestamp - startTime)) /
                        (endTime - startTime);
                }
            }
        } else {
            isUpdating = false;
            value = endValue;
        }
    }

    function _stopAmplification(uint256 value) internal {
        uint64 currentValueUint64 = value.toUint64();
        _amplificationState.startValue = currentValueUint64;
        _amplificationState.endValue = currentValueUint64;

        uint32 currentTime = block.timestamp.toUint32();
        _amplificationState.startTime = currentTime;
        _amplificationState.endTime = currentTime;

        emit AmpUpdateStopped(currentValueUint64);
    }

    /// @inheritdoc ISwapFeePercentageBounds
    function getMinimumSwapFeePercentage() external pure returns (uint256) {
        return _MIN_SWAP_FEE_PERCENTAGE;
    }

    /// @inheritdoc ISwapFeePercentageBounds
    function getMaximumSwapFeePercentage() external pure returns (uint256) {
        return _MAX_SWAP_FEE_PERCENTAGE;
    }

    /// @inheritdoc IUnbalancedLiquidityInvariantRatioBounds
    function getMinimumInvariantRatio() external pure returns (uint256) {
        return StableMath.MIN_INVARIANT_RATIO;
    }

    /// @inheritdoc IUnbalancedLiquidityInvariantRatioBounds
    function getMaximumInvariantRatio() external pure returns (uint256) {
        return StableMath.MAX_INVARIANT_RATIO;
    }

    /// @inheritdoc IStablePool
    function getStablePoolDynamicData() external view returns (StablePoolDynamicData memory data) {
        data.balancesLiveScaled18 = _vault.getCurrentLiveBalances(address(this));
        (, data.tokenRates) = _vault.getPoolTokenRates(address(this));
        data.staticSwapFeePercentage = _vault.getStaticSwapFeePercentage((address(this)));
        data.totalSupply = totalSupply();
        data.bptRate = getRate();
        (data.amplificationParameter, data.isAmpUpdating) = _getAmplificationParameter();

        AmplificationState memory state = _amplificationState;
        data.startValue = state.startValue;
        data.endValue = state.endValue;
        data.startTime = state.startTime;
        data.endTime = state.endTime;

        PoolConfig memory poolConfig = _vault.getPoolConfig(address(this));
        data.isPoolInitialized = poolConfig.isPoolInitialized;
        data.isPoolPaused = poolConfig.isPoolPaused;
        data.isPoolInRecoveryMode = poolConfig.isPoolInRecoveryMode;
    }

    /// @inheritdoc IStablePool
    function getStablePoolImmutableData() external view returns (StablePoolImmutableData memory data) {
        data.tokens = _vault.getPoolTokens(address(this));
        (data.decimalScalingFactors, ) = _vault.getPoolTokenRates(address(this));
        data.amplificationParameterPrecision = StableMath.AMP_PRECISION;
    }
}

// SPDX-License-Identifier: GPL-3.0-or-later

pragma solidity ^0.8.24;

import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol";

import { IBasePool } from "../vault/IBasePool.sol";

/**
 * @notice Full state of any ongoing or scheduled amplification parameter update.
 * @dev If there is an ongoing or scheduled update, `startTime` and/or `endTime` will be in the future.
 * On initialization, startTime == endTime, and both startValue and endValue will reflect the initial amp setting.
 * Balancer timestamps are 32 bits.
 *
 * @return startValue The amplification parameter at the start of the update
 * @return endValue The final value of the amplification parameter
 * @return startTime The timestamp when the update begins
 * @return endTime The timestamp when the update ends
 */
struct AmplificationState {
    uint64 startValue;
    uint64 endValue;
    uint32 startTime;
    uint32 endTime;
}

/**
 * @notice Stable Pool data that cannot change after deployment.
 * @param tokens Pool tokens, sorted in token registration order
 * @param decimalScalingFactors Conversion factor used to adjust for token decimals for uniform precision in
 * calculations. FP(1) for 18-decimal tokens
 * @param amplificationParameterPrecision Scaling factor used to increase the precision of calculations involving the
 * `amplificationParameter`. (See StableMath `MIN_AMP`, `MAX_AMP`, `AMP_PRECISION`)
 */
struct StablePoolImmutableData {
    IERC20[] tokens;
    uint256[] decimalScalingFactors;
    uint256 amplificationParameterPrecision;
}

/**
 * @notice Snapshot of current Stable Pool data that can change.
 * @dev Note that live balances will not necessarily be accurate if the pool is in Recovery Mode. Withdrawals
 * in Recovery Mode do not make external calls (including those necessary for updating live balances), so if
 * there are withdrawals, raw and live balances will be out of sync until Recovery Mode is disabled.
 *
 * @param balancesLiveScaled18 Token balances after paying yield fees, applying decimal scaling and rates
 * @param tokenRates 18-decimal FP values for rate tokens (e.g., yield-bearing), or FP(1) for standard tokens
 * @param staticSwapFeePercentage 18-decimal FP value of the static swap fee percentage
 * @param totalSupply The current total supply of the pool tokens (BPT)
 * @param bptRate The current rate of a pool token (BPT) = invariant / totalSupply
 * @param amplificationParameter Controls the "flatness" of the invariant curve. higher values = lower slippage,
 * and assumes prices are near parity. lower values = closer to the constant product curve (e.g., more like a
 * weighted pool). This has higher slippage, and accommodates greater price volatility. Note that this is the raw
 * amp value, not multiplied by `StableMath.AMP_PRECISION`
 * @param startValue The amplification parameter at the start of an update
 * @param endValue The final value of the amplification parameter
 * @param startTime The timestamp when the update begins
 * @param endTime The timestamp when the update ends
 * @param isAmpUpdating True if an amplification parameter update is in progress
 * @param isPoolInitialized If false, the pool has not been seeded with initial liquidity, so operations will revert
 * @param isPoolPaused If true, the pool is paused, and all non-recovery-mode state-changing operations will revert
 * @param isPoolInRecoveryMode If true, Recovery Mode withdrawals are enabled, and live balances may be inaccurate
 */
struct StablePoolDynamicData {
    uint256[] balancesLiveScaled18;
    uint256[] tokenRates;
    uint256 staticSwapFeePercentage;
    uint256 totalSupply;
    uint256 bptRate;
    uint256 amplificationParameter;
    uint256 startValue;
    uint256 endValue;
    uint32 startTime;
    uint32 endTime;
    bool isAmpUpdating;
    bool isPoolInitialized;
    bool isPoolPaused;
    bool isPoolInRecoveryMode;
}

/// @notice Full Stable Pool interface.
interface IStablePool is IBasePool {
    /**
     * @notice Begins changing the amplification parameter to `rawEndValue` over time.
     * @dev The value will change linearly until `endTime` is reached, when it will equal `rawEndValue`.
     * NOTE: Internally, the amplification parameter is represented using higher precision. The values returned by
     * `getAmplificationParameter` have to be corrected to account for this when comparing to `rawEndValue`.
     *
     * @param rawEndValue The desired ending value of the amplification parameter
     * @param endTime The timestamp when the amplification parameter update is complete
     */
    function startAmplificationParameterUpdate(uint256 rawEndValue, uint256 endTime) external;

    /// @dev Stops the amplification parameter change process, keeping the current value.
    function stopAmplificationParameterUpdate() external;

    /**
     * @notice Get all the amplification parameters.
     * @return value Current amplification parameter value (could be in the middle of an update)
     * @return isUpdating True if an amplification parameter update is in progress
     * @return precision The raw value is multiplied by this number for greater precision during updates
     */
    function getAmplificationParameter() external view returns (uint256 value, bool isUpdating, uint256 precision);

    /**
     * @notice Get the full state of any ongoing or scheduled amplification parameter update.
     * @dev Starting and ending values are returned in their full precision state.
     * @return amplificationState Struct containing the update data
     * @return precision The raw parameter value is multiplied by this number for greater precision during updates
     */
    function getAmplificationState()
        external
        view
        returns (AmplificationState memory amplificationState, uint256 precision);

    /**
     * @notice Get dynamic pool data relevant to swap/add/remove calculations.
     * @return data A struct containing all dynamic stable pool parameters
     */
    function getStablePoolDynamicData() external view returns (StablePoolDynamicData memory data);

    /**
     * @notice Get immutable pool data relevant to swap/add/remove calculations.
     * @return data A struct containing all immutable stable pool parameters
     */
    function getStablePoolImmutableData() external view returns (StablePoolImmutableData memory data);
}

// SPDX-License-Identifier: GPL-3.0-or-later

pragma solidity ^0.8.24;

import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol";

import { TokenInfo } from "../vault/VaultTypes.sol";

/**
 * @notice Convenience interface for pools, to get easy access to information stored in the Vault.
 * Intended mostly for off-chain requests; pools do not need to implement this to work properly.
 */
interface IPoolInfo {
    /**
     * @notice Gets the tokens registered in the pool.
     * @return tokens List of tokens in the pool, sorted in registration order
     */
    function getTokens() external view returns (IERC20[] memory tokens);

    /**
     * @notice Gets the raw data for the pool: tokens, token info, raw balances, and last live balances.
     * @return tokens Pool tokens, sorted in token registration order
     * @return tokenInfo Token info structs (type, rate provider, yield flag), sorted in token registration order
     * @return balancesRaw Current native decimal balances of the pool tokens, sorted in token registration order
     * @return lastBalancesLiveScaled18 Last saved live balances, sorted in token registration order
     */
    function getTokenInfo()
        external
        view
        returns (
            IERC20[] memory tokens,
            TokenInfo[] memory tokenInfo,
            uint256[] memory balancesRaw,
            uint256[] memory lastBalancesLiveScaled18
        );

    /**
     * @notice Gets the current live balances of the pool as fixed point, 18-decimal numbers.
     * @dev Note that live balances will not necessarily be accurate if the pool is in Recovery Mode.
     * Withdrawals in Recovery Mode do not make external calls (including those necessary for updating live balances),
     * so if there are withdrawals, raw and live balances will be out of sync until Recovery Mode is disabled.
     *
     * @return balancesLiveScaled18 Token balances after paying yield fees, applying decimal scaling and rates
     */
    function getCurrentLiveBalances() external view returns (uint256[] memory balancesLiveScaled18);

    /**
     * @notice Fetches the static swap fee percentage for the pool.
     * @return staticSwapFeePercentage 18-decimal FP value of the static swap fee percentage
     */
    function getStaticSwapFeePercentage() external view returns (uint256 staticSwapFeePercentage);

    /**
     * @notice Gets the aggregate swap and yield fee percentages for a pool.
     * @dev These are determined by the current protocol and pool creator fees, set in the `ProtocolFeeController`.
     * @return aggregateSwapFeePercentage The aggregate percentage fee applied to swaps
     * @return aggregateYieldFeePercentage The aggregate percentage fee applied to yield
     */
    function getAggregateFeePercentages()
        external
        view
        returns (uint256 aggregateSwapFeePercentage, uint256 aggregateYieldFeePercentage);
}

// SPDX-License-Identifier: GPL-3.0-or-later

pragma solidity ^0.8.24;

/// @notice Simple interface for permissioned calling of external functions.
interface IAuthentication {
    /// @notice The sender does not have permission to call a function.
    error SenderNotAllowed();

    /**
     * @notice Returns the action identifier associated with the external function described by `selector`.
     * @param selector The 4-byte selector of the permissioned function
     * @return actionId The computed actionId
     */
    function getActionId(bytes4 selector) external view returns (bytes32 actionId);
}

// SPDX-License-Identifier: GPL-3.0-or-later

pragma solidity ^0.8.24;

/// @notice General interface for token exchange rates.
interface IRateProvider {
    /**
     * @notice An 18 decimal fixed point number representing the exchange rate of one token to another related token.
     * @dev The meaning of this rate depends on the context. Note that there may be an error associated with a token
     * rate, and the caller might require a certain rounding direction to ensure correctness. This (legacy) interface
     * does not take a rounding direction or return an error, so great care must be taken when interpreting and using
     * rates in downstream computations.
     *
     * @return rate The current token rate
     */
    function getRate() external view returns (uint256 rate);
}

// SPDX-License-Identifier: GPL-3.0-or-later

pragma solidity ^0.8.24;

/// @notice Simple interface to retrieve the version of a deployed contract.
interface IVersion {
    /**
     * @notice Return arbitrary text representing the version of a contract.
     * @dev For standard Balancer contracts, returns a JSON representation of the contract version containing name,
     * version number and task ID. See real examples in the deployment repo; local tests just use plain text strings.
     *
     * @return version The version string corresponding to the current deployed contract
     */
    function version() external view returns (string memory);
}

// SPDX-License-Identifier: GPL-3.0-or-later

pragma solidity ^0.8.24;

/// @notice Interface to the Vault's permission system.
interface IAuthorizer {
    /**
     * @notice Returns true if `account` can perform the action described by `actionId` in the contract `where`.
     * @param actionId Identifier for the action to be performed
     * @param account Account trying to perform the action
     * @param where Target contract for the action
     * @return success True if the action is permitted
     */
    function canPerform(bytes32 actionId, address account, address where) external view returns (bool success);
}

// SPDX-License-Identifier: GPL-3.0-or-later

pragma solidity ^0.8.24;

import { IUnbalancedLiquidityInvariantRatioBounds } from "./IUnbalancedLiquidityInvariantRatioBounds.sol";
import { ISwapFeePercentageBounds } from "./ISwapFeePercentageBounds.sol";
import { PoolSwapParams, Rounding, SwapKind } from "./VaultTypes.sol";

/**
 * @notice Base interface for a Balancer Pool.
 * @dev All pool types should implement this interface. Note that it also requires implementation of:
 * - `ISwapFeePercentageBounds` to specify the minimum and maximum swap fee percentages.
 * - `IUnbalancedLiquidityInvariantRatioBounds` to specify how much the invariant can change during an unbalanced
 * liquidity operation.
 */
interface IBasePool is ISwapFeePercentageBounds, IUnbalancedLiquidityInvariantRatioBounds {
    /***************************************************************************
                                   Invariant
    ***************************************************************************/

    /**
     * @notice Computes the pool's invariant.
     * @dev This function computes the invariant based on current balances (and potentially other pool state).
     * The rounding direction must be respected for the Vault to round in the pool's favor when calling this function.
     * If the invariant computation involves no precision loss (e.g. simple sum of balances), the same result can be
     * returned for both rounding directions.
     *
     * You can think of the invariant as a measure of the "value" of the pool, which is related to the total liquidity
     * (i.e., the "BPT rate" is `invariant` / `totalSupply`). Two critical properties must hold:
     *
     * 1) The invariant should not change due to a swap. In practice, it can *increase* due to swap fees, which
     * effectively add liquidity after the swap - but it should never decrease.
     *
     * 2) The invariant must be "linear"; i.e., increasing the balances proportionally must increase the invariant in
     * the same proportion: inv(a * n, b * n, c * n) = inv(a, b, c) * n
     *
     * Property #1 is required to prevent "round trip" paths that drain value from the pool (and all LP shareholders).
     * Intuitively, an accurate pricing algorithm ensures the user gets an equal value of token out given token in, so
     * the total value should not change.
     *
     * Property #2 is essential for the "fungibility" of LP shares. If it did not hold, then different users depositing
     * the same total value would get a different number of LP shares. In that case, LP shares would not be
     * interchangeable, as they must be in a fair DEX.
     *
     * @param balancesLiveScaled18 Token balances after paying yield fees, applying decimal scaling and rates
     * @param rounding Rounding direction to consider when computing the invariant
     * @return invariant The calculated invariant of the pool, represented as a uint256
     */
    function computeInvariant(
        uint256[] memory balancesLiveScaled18,
        Rounding rounding
    ) external view returns (uint256 invariant);

    /**
     * @notice Computes a new token balance, given the invariant growth ratio and all other balances.
     * @dev Similar to V2's `_getTokenBalanceGivenInvariantAndAllOtherBalances` in StableMath.
     * The pool must round up for the Vault to round in the protocol's favor when calling this function.
     *
     * @param balancesLiveScaled18 Token balances after paying yield fees, applying decimal scaling and rates
     * @param tokenInIndex The index of the token we're computing the balance for, sorted in token registration order
     * @param invariantRatio The ratio of the new invariant (after an operation) to the old
     * @return newBalance The new balance of the selected token, after the operation
     */
    function computeBalance(
        uint256[] memory balancesLiveScaled18,
        uint256 tokenInIndex,
        uint256 invariantRatio
    ) external view returns (uint256 newBalance);

    /***************************************************************************
                                       Swaps
    ***************************************************************************/

    /**
     * @notice Execute a swap in the pool.
     * @param params Swap parameters (see above for struct definition)
     * @return amountCalculatedScaled18 Calculated amount for the swap operation
     */
    function onSwap(PoolSwapParams calldata params) external returns (uint256 amountCalculatedScaled18);
}

// SPDX-License-Identifier: GPL-3.0-or-later

pragma solidity ^0.8.24;

// Explicitly import VaultTypes structs because we expect this interface to be heavily used by external developers.
// Internally, when this list gets too long, we usually just do a simple import to keep things tidy.
import {
    TokenConfig,
    LiquidityManagement,
    PoolSwapParams,
    AfterSwapParams,
    HookFlags,
    AddLiquidityKind,
    RemoveLiquidityKind,
    SwapKind
} from "./VaultTypes.sol";

/**
 * @notice Interface for pool hooks.
 * @dev Hooks are functions invoked by the Vault at specific points in the flow of each operation. This guarantees that
 * they are called in the correct order, and with the correct arguments. To maintain this security, these functions
 * should only be called by the Vault. The recommended way to do this is to derive the hook contract from `BaseHooks`,
 * then use the `onlyVault` modifier from `VaultGuard`. (See the examples in /pool-hooks.)
 */
interface IHooks {
    /***************************************************************************
                                   Register
    ***************************************************************************/

    /**
     * @notice Hook executed when a pool is registered with a non-zero hooks contract.
     * @dev Returns true if registration was successful, and false to revert the pool registration.
     * Make sure this function is properly implemented (e.g. check the factory, and check that the
     * given pool is from the factory). The Vault address will be msg.sender.
     *
     * @param factory Address of the pool factory (contract deploying the pool)
     * @param pool Address of the pool
     * @param tokenConfig An array of descriptors for the tokens the pool will manage
     * @param liquidityManagement Liquidity management flags indicating which functions are enabled
     * @return success True if the hook allowed the registration, false otherwise
     */
    function onRegister(
        address factory,
        address pool,
        TokenConfig[] memory tokenConfig,
        LiquidityManagement calldata liquidityManagement
    ) external returns (bool success);

    /**
     * @notice Return the set of hooks implemented by the contract.
     * @dev The Vault will only call hooks the pool says it supports, and of course only if a hooks contract is defined
     * (i.e., the `poolHooksContract` in `PoolRegistrationParams` is non-zero).
     * `onRegister` is the only "mandatory" hook.
     *
     * @return hookFlags Flags indicating which hooks the contract supports
     */
    function getHookFlags() external view returns (HookFlags memory hookFlags);

    /***************************************************************************
                                   Initialize
    ***************************************************************************/

    /**
     * @notice Hook executed before pool initialization.
     * @dev Called if the `shouldCallBeforeInitialize` flag is set in the configuration. Hook contracts should use
     * the `onlyVault` modifier to guarantee this is only called by the Vault.
     *
     * @param exactAmountsIn Exact amounts of input tokens
     * @param userData Optional, arbitrary data sent with the encoded request
     * @return success True if the pool wishes to proceed with initialization
     */
    function onBeforeInitialize(uint256[] memory exactAmountsIn, bytes memory userData) external returns (bool success);

    /**
     * @notice Hook to be executed after pool initialization.
     * @dev Called if the `shouldCallAfterInitialize` flag is set in the configuration. Hook contracts should use
     * the `onlyVault` modifier to guarantee this is only called by the Vault.
     *
     * @param exactAmountsIn Exact amounts of input tokens
     * @param bptAmountOut Amount of pool tokens minted during initialization
     * @param userData Optional, arbitrary data sent with the encoded request
     * @return success True if the pool accepts the initialization results
     */
    function onAfterInitialize(
        uint256[] memory exactAmountsIn,
        uint256 bptAmountOut,
        bytes memory userData
    ) external returns (bool success);

    /***************************************************************************
                                   Add Liquidity
    ***************************************************************************/

    /**
     * @notice Hook to be executed before adding liquidity.
     * @dev Called if the `shouldCallBeforeAddLiquidity` flag is set in the configuration. Hook contracts should use
     * the `onlyVault` modifier to guarantee this is only called by the Vault.
     *
     * @param router The address (usually a router contract) that initiated an add liquidity operation on the Vault
     * @param pool Pool address, used to fetch pool information from the Vault (pool config, tokens, etc.)
     * @param kind The add liquidity operation type (e.g., proportional, custom)
     * @param maxAmountsInScaled18 Maximum amounts of input tokens
     * @param minBptAmountOut Minimum amount of output pool tokens
     * @param balancesScaled18 Current pool balances, sorted in token registration order
     * @param userData Optional, arbitrary data sent with the encoded request
     * @return success True if the pool wishes to proceed with settlement
     */
    function onBeforeAddLiquidity(
        address router,
        address pool,
        AddLiquidityKind kind,
        uint256[] memory maxAmountsInScaled18,
        uint256 minBptAmountOut,
        uint256[] memory balancesScaled18,
        bytes memory userData
    ) external returns (bool success);

    /**
     * @notice Hook to be executed after adding liquidity.
     * @dev Called if the `shouldCallAfterAddLiquidity` flag is set in the configuration. The Vault will ignore
     * `hookAdjustedAmountsInRaw` unless `enableHookAdjustedAmounts` is true. Hook contracts should use the
     * `onlyVault` modifier to guarantee this is only called by the Vault.
     *
     * @param router The address (usually a router contract) that initiated an add liquidity operation on the Vault
     * @param pool Pool address, used to fetch pool information from the Vault (pool config, tokens, etc.)
     * @param kind The add liquidity operation type (e.g., proportional, custom)
     * @param amountsInScaled18 Actual amounts of tokens added, sorted in token registration order
     * @param amountsInRaw Actual amounts of tokens added, sorted in token registration order
     * @param bptAmountOut Amount of pool tokens minted
     * @param balancesScaled18 Current pool balances, sorted in token registration order
     * @param userData Additional (optional) data provided by the user
     * @return success True if the pool wishes to proceed with settlement
     * @return hookAdjustedAmountsInRaw New amountsInRaw, potentially modified by the hook
     */
    function onAfterAddLiquidity(
        address router,
        address pool,
        AddLiquidityKind kind,
        uint256[] memory amountsInScaled18,
        uint256[] memory amountsInRaw,
        uint256 bptAmountOut,
        uint256[] memory balancesScaled18,
        bytes memory userData
    ) external returns (bool success, uint256[] memory hookAdjustedAmountsInRaw);

    /***************************************************************************
                                 Remove Liquidity
    ***************************************************************************/

    /**
     * @notice Hook to be executed before removing liquidity.
     * @dev Called if the `shouldCallBeforeRemoveLiquidity` flag is set in the configuration. Hook contracts should use
     * the `onlyVault` modifier to guarantee this is only called by the Vault.
     *
     * @param router The address (usually a router contract) that initiated a remove liquidity operation on the Vault
     * @param pool Pool address, used to fetch pool information from the Vault (pool config, tokens, etc.)
     * @param kind The type of remove liquidity operation (e.g., proportional, custom)
     * @param maxBptAmountIn Maximum amount of input pool tokens
     * @param minAmountsOutScaled18 Minimum output amounts, sorted in token registration order
     * @param balancesScaled18 Current pool balances, sorted in token registration order
     * @param userData Optional, arbitrary data sent with the encoded request
     * @return success True if the pool wishes to proceed with settlement
     */
    function onBeforeRemoveLiquidity(
        address router,
        address pool,
        RemoveLiquidityKind kind,
        uint256 maxBptAmountIn,
        uint256[] memory minAmountsOutScaled18,
        uint256[] memory balancesScaled18,
        bytes memory userData
    ) external returns (bool success);

    /**
     * @notice Hook to be executed after removing liquidity.
     * @dev Called if the `shouldCallAfterRemoveLiquidity` flag is set in the configuration. The Vault will ignore
     * `hookAdjustedAmountsOutRaw` unless `enableHookAdjustedAmounts` is true. Hook contracts should use the
     * `onlyVault` modifier to guarantee this is only called by the Vault.
     *
     * @param router The address (usually a router contract) that initiated a remove liquidity operation on the Vault
     * @param pool Pool address, used to fetch pool information from the Vault (pool config, tokens, etc.)
     * @param kind The type of remove liquidity operation (e.g., proportional, custom)
     * @param bptAmountIn Amount of pool tokens to burn
     * @param amountsOutScaled18 Scaled amount of tokens to receive, sorted in token registration order
     * @param amountsOutRaw Actual amount of tokens to receive, sorted in token registration order
     * @param balancesScaled18 Current pool balances, sorted in token registration order
     * @param userData Additional (optional) data provided by the user
     * @return success True if the pool wishes to proceed with settlement
     * @return hookAdjustedAmountsOutRaw New amountsOutRaw, potentially modified by the hook
     */
    function onAfterRemoveLiquidity(
        address router,
        address pool,
        RemoveLiquidityKind kind,
        uint256 bptAmountIn,
        uint256[] memory amountsOutScaled18,
        uint256[] memory amountsOutRaw,
        uint256[] memory balancesScaled18,
        bytes memory userData
    ) external returns (bool success, uint256[] memory hookAdjustedAmountsOutRaw);

    /***************************************************************************
                                    Swap
    ***************************************************************************/

    /**
     * @notice Called before a swap to give the Pool an opportunity to perform actions.
     * @dev Called if the `shouldCallBeforeSwap` flag is set in the configuration. Hook contracts should use the
     * `onlyVault` modifier to guarantee this is only called by the Vault.
     *
     * @param params Swap parameters (see PoolSwapParams for struct definition)
     * @param pool Pool address, used to get pool information from the Vault (poolData, token config, etc.)
     * @return success True if the pool wishes to proceed with settlement
     */
    function onBeforeSwap(PoolSwapParams calldata params, address pool) external returns (bool success);

    /**
     * @notice Called after a swap to perform further actions once the balances have been updated by the swap.
     * @dev Called if the `shouldCallAfterSwap` flag is set in the configuration. The Vault will ignore
     * `hookAdjustedAmountCalculatedRaw` unless `enableHookAdjustedAmounts` is true. Hook contracts should
     * use the `onlyVault` modifier to guarantee this is only called by the Vault.
     *
     * @param params Swap parameters (see above for struct definition)
     * @return success True if the pool wishes to proceed with settlement
     * @return hookAdjustedAmountCalculatedRaw New amount calculated, potentially modified by the hook
     */
    function onAfterSwap(
        AfterSwapParams calldata params
    ) external returns (bool success, uint256 hookAdjustedAmountCalculatedRaw);

    /**
     * @notice Called after `onBeforeSwap` and before the main swap operation, if the pool has dynamic fees.
     * @dev Called if the `shouldCallComputeDynamicSwapFee` flag is set in the configuration. Hook contracts should use
     * the `onlyVault` modifier to guarantee this is only called by the Vault.
     *
     * @param params Swap parameters (see PoolSwapParams for struct definition)
     * @param pool Pool address, used to get pool information from the Vault (poolData, token config, etc.)
     * @param staticSwapFeePercentage 18-decimal FP value of the static swap fee percentage, for reference
     * @return success True if the pool wishes to proceed with settlement
     * @return dynamicSwapFeePercentage Value of the swap fee percentage, as an 18-decimal FP value
     */
    function onComputeDynamicSwapFeePercentage(
        PoolSwapParams calldata params,
        address pool,
        uint256 staticSwapFeePercentage
    ) external view returns (bool success, uint256 dynamicSwapFeePercentage);
}

// SPDX-License-Identifier: GPL-3.0-or-later

pragma solidity ^0.8.24;

import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol";

import { IVault } from "./IVault.sol";

/// @notice Contract that handles protocol and pool creator fees for the Vault.
interface IProtocolFeeController {
    /**
     * @notice Emitted when the protocol swap fee percentage is updated.
     * @param swapFeePercentage The updated protocol swap fee percentage
     */
    event GlobalProtocolSwapFeePercentageChanged(uint256 swapFeePercentage);

    /**
     * @notice Emitted when the protocol yield fee percentage is updated.
     * @param yieldFeePercentage The updated protocol yield fee percentage
     */
    event GlobalProtocolYieldFeePercentageChanged(uint256 yieldFeePercentage);

    /**
     * @notice Emitted when the protocol swap fee percentage is updated for a specific pool.
     * @param pool The pool whose protocol swap fee will be changed
     * @param swapFeePercentage The updated protocol swap fee percentage
     */
    event ProtocolSwapFeePercentageChanged(address indexed pool, uint256 swapFeePercentage);

    /**
     * @notice Emitted when the protocol yield fee percentage is updated for a specific pool.
     * @param pool The pool whose protocol yield fee will be changed
     * @param yieldFeePercentage The updated protocol yield fee percentage
     */
    event ProtocolYieldFeePercentageChanged(address indexed pool, uint256 yieldFeePercentage);

    /**
     * @notice Emitted when the pool creator swap fee percentage of a pool is updated.
     * @param pool The pool whose pool creator swap fee will be changed
     * @param poolCreatorSwapFeePercentage The new pool creator swap fee percentage for the pool
     */
    event PoolCreatorSwapFeePercentageChanged(address indexed pool, uint256 poolCreatorSwapFeePercentage);

    /**
     * @notice Emitted when the pool creator yield fee percentage of a pool is updated.
     * @param pool The pool whose pool creator yield fee will be changed
     * @param poolCreatorYieldFeePercentage The new pool creator yield fee percentage for the pool
     */
    event PoolCreatorYieldFeePercentageChanged(address indexed pool, uint256 poolCreatorYieldFeePercentage);

    /**
     * @notice Logs the collection of protocol swap fees in a specific token and amount.
     * @dev Note that since charging protocol fees (i.e., distributing tokens between pool and fee balances) occurs
     * in the Vault, but fee collection happens in the ProtocolFeeController, the swap fees reported here may encompass
     * multiple operations.
     *
     * @param pool The pool on which the swap fee was charged
     * @param token The token in which the swap fee was charged
     * @param amount The amount of the token collected in fees
     */
    event ProtocolSwapFeeCollected(address indexed pool, IERC20 indexed token, uint256 amount);

    /**
     * @notice Logs the collection of protocol yield fees in a specific token and amount.
     * @dev Note that since charging protocol fees (i.e., distributing tokens between pool and fee balances) occurs
     * in the Vault, but fee collection happens in the ProtocolFeeController, the yield fees reported here may encompass
     * multiple operations.
     *
     * @param pool The pool on which the yield fee was charged
     * @param token The token in which the yield fee was charged
     * @param amount The amount of the token collected in fees
     */
    event ProtocolYieldFeeCollected(address indexed pool, IERC20 indexed token, uint256 amount);

    /**
     * @notice Logs the withdrawal of protocol fees in a specific token and amount.
     * @param pool The pool from which protocol fees are being withdrawn
     * @param token The token being withdrawn
     * @param recipient The recipient of the funds
     * @param amount The amount of the fee token that was withdrawn
     */
    event ProtocolFeesWithdrawn(address indexed pool, IERC20 indexed token, address indexed recipient, uint256 amount);

    /**
     * @notice Logs the withdrawal of pool creator fees in a specific token and amount.
     * @param pool The pool from which pool creator fees are being withdrawn
     * @param token The token being withdrawn
     * @param recipient The recipient of the funds (the pool creator if permissionless, or another account)
     * @param amount The amount of the fee token that was withdrawn
     */
    event PoolCreatorFeesWithdrawn(
        address indexed pool,
        IERC20 indexed token,
        address indexed recipient,
        uint256 amount
    );

    /**
     * @notice Error raised when the protocol swap fee percentage exceeds the maximum allowed value.
     * @dev Note that this is checked for both the global and pool-specific protocol swap fee percentages.
     */
    error ProtocolSwapFeePercentageTooHigh();

    /**
     * @notice Error raised when the protocol yield fee percentage exceeds the maximum allowed value.
     * @dev Note that this is checked for both the global and pool-specific protocol yield fee percentages.
     */
    error ProtocolYieldFeePercentageTooHigh();

    /**
     * @notice Error raised if there is no pool creator on a withdrawal attempt from the given pool.
     * @param pool The pool with no creator
     */
    error PoolCreatorNotRegistered(address pool);

    /**
     * @notice Error raised if the wrong account attempts to withdraw pool creator fees.
     * @param caller The account attempting to withdraw pool creator fees
     * @param pool The pool the caller tried to withdraw from
     */
    error CallerIsNotPoolCreator(address caller, address pool);

    /// @notice Error raised when the pool creator swap or yield fee percentage exceeds the maximum allowed value.
    error PoolCreatorFeePercentageTooHigh();

    /**
     * @notice Get the address of the main Vault contract.
     * @return vault The Vault address
     */
    function vault() external view returns (IVault);

    /**
     * @notice Collects aggregate fees from the Vault for a given pool.
     * @param pool The pool with aggregate fees
     */
    function collectAggregateFees(address pool) external;

    /**
     * @notice Getter for the current global protocol swap fee.
     * @return protocolSwapFeePercentage The global protocol swap fee percentage
     */
    function getGlobalProtocolSwapFeePercentage() external view returns (uint256 protocolSwapFeePercentage);

    /**
     * @notice Getter for the current global protocol yield fee.
     * @return protocolYieldFeePercentage The global protocol yield fee percentage
     */
    function getGlobalProtocolYieldFeePercentage() external view returns (uint256 protocolYieldFeePercentage);

    /**
     * @notice Getter for the current protocol swap fee for a given pool.
     * @param pool The address of the pool
     * @return protocolSwapFeePercentage The global protocol swap fee percentage
     * @return isOverride True if the protocol fee has been overridden
     */
    function getPoolProtocolSwapFeeInfo(
        address pool
    ) external view returns (uint256 protocolSwapFeePercentage, bool isOverride);

    /**
     * @notice Getter for the current protocol yield fee for a given pool.
     * @param pool The address of the pool
     * @return protocolYieldFeePercentage The global protocol yield fee percentage
     * @return isOverride True if the protocol fee has been overridden
     */
    function getPoolProtocolYieldFeeInfo(
        address pool
    ) external view returns (uint256 protocolYieldFeePercentage, bool isOverride);

    /**
     * @notice Returns the amount of each pool token allocated to the protocol for withdrawal.
     * @dev Includes both swap and yield fees.
     * @param pool The address of the pool on which fees were collected
     * @return feeAmounts The total amounts of each token available for withdrawal, sorted in token registration order
     */
    function getProtocolFeeAmounts(address pool) external view returns (uint256[] memory feeAmounts);

    /**
     * @notice Returns the amount of each pool token allocated to the pool creator for withdrawal.
     * @dev Includes both swap and yield fees.
     * @param pool The address of the pool on which fees were collected
     * @return feeAmounts The total amounts of each token available for withdrawal, sorted in token registration order
     */
    function getPoolCreatorFeeAmounts(address pool) external view returns (uint256[] memory feeAmounts);

    /**
     * @notice Returns a calculated aggregate percentage from protocol and pool creator fee percentages.
     * @dev Not tied to any particular pool; this just performs the low-level "additive fee" calculation. Note that
     * pool creator fees are calculated based on creatorAndLpFees, and not in totalFees. Since aggregate fees are
     * stored in the Vault with 24-bit precision, this will truncate any values that require greater precision.
     * It is expected that pool creators will negotiate with the DAO and agree on reasonable values for these fee
     * components, but the truncation ensures it will not revert for any valid set of fee percentages.
     *
     * See example below:
     *
     * tokenOutAmount = 10000; poolSwapFeePct = 10%; protocolFeePct = 40%; creatorFeePct = 60%
     * totalFees = tokenOutAmount * poolSwapFeePct = 10000 * 10% = 1000
     * protocolFees = totalFees * protocolFeePct = 1000 * 40% = 400
     * creatorAndLpFees = totalFees - protocolFees = 1000 - 400 = 600
     * creatorFees = creatorAndLpFees * creatorFeePct = 600 * 60% = 360
     * lpFees (will stay in the pool) = creatorAndLpFees - creatorFees = 600 - 360 = 240
     *
     * @param protocolFeePercentage The protocol portion of the aggregate fee percentage
     * @param poolCreatorFeePercentage The pool creator portion of the aggregate fee percentage
     * @return aggregateFeePercentage The computed aggregate percentage
     */
    function computeAggregateFeePercentage(
        uint256 protocolFeePercentage,
        uint256 poolCreatorFeePercentage
    ) external pure returns (uint256 aggregateFeePercentage);

    /**
     * @notice Override the protocol swap fee percentage for a specific pool.
     * @dev This is a permissionless call, and will set the pool's fee to the current global fee, if it is different
     * from the current value, and the fee is not controlled by governance (i.e., has never been overridden).
     *
     * @param pool The pool for which we are setting the protocol swap fee
     */
    function updateProtocolSwapFeePercentage(address pool) external;

    /**
     * @notice Override the protocol yield fee percentage for a specific pool.
     * @dev This is a permissionless call, and will set the pool's fee to the current global fee, if it is different
     * from the current value, and the fee is not controlled by governance (i.e., has never been overridden).
     *
     * @param pool The pool for which we are setting the protocol yield fee
     */
    function updateProtocolYieldFeePercentage(address pool) external;

    /***************************************************************************
                                Permissioned Functions
    ***************************************************************************/

    /**
     * @notice Add pool-specific entries to the protocol swap and yield percentages.
     * @dev This must be called from the Vault during pool registration. It will initialize the pool to the global
     * protocol fee percentage values (or 0, if the `protocolFeeExempt` flags is set), and return the initial aggregate
     * fee percentages, based on an initial pool creator fee of 0.
     *
     * @param pool The address of the pool being registered
     * @param poolCreator The address of the pool creator (or 0 if there won't be a pool creator fee)
     * @param protocolFeeExempt If true, the pool is initially exempt from protocol fees
     * @return aggregateSwapFeePercentage The initial aggregate swap fee percentage
     * @return aggregateYieldFeePercentage The initial aggregate yield fee percentage
     */
    function registerPool(
        address pool,
        address poolCreator,
        bool protocolFeeExempt
    ) external returns (uint256 aggregateSwapFeePercentage, uint256 aggregateYieldFeePercentage);

    /**
     * @notice Set the global protocol swap fee percentage, used by standard pools.
     * @param newProtocolSwapFeePercentage The new protocol swap fee percentage
     */
    function setGlobalProtocolSwapFeePercentage(uint256 newProtocolSwapFeePercentage) external;

    /**
     * @notice Set the global protocol yield fee percentage, used by standard pools.
     * @param newProtocolYieldFeePercentage The new protocol yield fee percentage
     */
    function setGlobalProtocolYieldFeePercentage(uint256 newProtocolYieldFeePercentage) external;

    /**
     * @notice Override the protocol swap fee percentage for a specific pool.
     * @param pool The address of the pool for which we are setting the protocol swap fee
     * @param newProtocolSwapFeePercentage The new protocol swap fee percentage for the pool
     */
    function setProtocolSwapFeePercentage(address pool, uint256 newProtocolSwapFeePercentage) external;

    /**
     * @notice Override the protocol yield fee percentage for a specific pool.
     * @param pool The address of the pool for which we are setting the protocol yield fee
     * @param newProtocolYieldFeePercentage The new protocol yield fee percentage for the pool
     */
    function setProtocolYieldFeePercentage(address pool, uint256 newProtocolYieldFeePercentage) external;

    /**
     * @notice Assigns a new pool creator swap fee percentage to the specified pool.
     * @dev Fees are divided between the protocol, pool creator, and LPs. The pool creator percentage is applied to
     * the "net" amount after protocol fees, and divides the remainder between the pool creator and LPs. If the
     * pool creator fee is near 100%, almost none of the fee amount remains in the pool for LPs.
     *
     * @param pool The address of the pool for which the pool creator fee will be changed
     * @param poolCreatorSwapFeePercentage The new pool creator swap fee percentage to apply to the pool
     */
    function setPoolCreatorSwapFeePercentage(address pool, uint256 poolCreatorSwapFeePercentage) external;

    /**
     * @notice Assigns a new pool creator yield fee percentage to the specified pool.
     * @dev Fees are divided between the protocol, pool creator, and LPs. The pool creator percentage is applied to
     * the "net" amount after protocol fees, and divides the remainder between the pool creator and LPs. If the
     * pool creator fee is near 100%, almost none of the fee amount remains in the pool for LPs.
     *
     * @param pool The address of the pool for which the pool creator fee will be changed
     * @param poolCreatorYieldFeePercentage The new pool creator yield fee percentage to apply to the pool
     */
    function setPoolCreatorYieldFeePercentage(address pool, uint256 poolCreatorYieldFeePercentage) external;

    /**
     * @notice Withdraw collected protocol fees for a given pool (all tokens). This is a permissioned function.
     * @dev Sends swap and yield protocol fees to the recipient.
     * @param pool The pool on which fees were collected
     * @param recipient Address to send the tokens
     */
    function withdrawProtocolFees(address pool, address recipient) external;

    /**
     * @notice Withdraw collected protocol fees for a given pool and a given token. This is a permissioned function.
     * @dev Sends swap and yield protocol fees to the recipient.
     * @param pool The pool on which fees were collected
     * @param recipient Address to send the tokens
     * @param token Token to withdraw
     */
    function withdrawProtocolFeesForToken(address pool, address recipient, IERC20 token) external;

    /**
     * @notice Withdraw collected pool creator fees for a given pool. This is a permissioned function.
     * @dev Sends swap and yield pool creator fees to the recipient.
     * @param pool The pool on which fees were collected
     * @param recipient Address to send the tokens
     */
    function withdrawPoolCreatorFees(address pool, address recipient) external;

    /**
     * @notice Withdraw collected pool creator fees for a given pool.
     * @dev Sends swap and yield pool creator fees to the registered poolCreator. Since this is a known and immutable
     * value, this function is permissionless.
     *
     * @param pool The pool on which fees were collected
     */
    function withdrawPoolCreatorFees(address pool) external;
}

// SPDX-License-Identifier: GPL-3.0-or-later

pragma solidity ^0.8.24;

/**
 * @notice Return the minimum/maximum swap fee percentages for a pool.
 * @dev The Vault does not enforce bounds on swap fee percentages; `IBasePool` implements this interface to ensure
 * that new pool developers think about and set these bounds according to their specific pool type.
 *
 * A minimum swap fee might be necessary to ensure mathematical soundness (e.g., Weighted Pools, which use the power
 * function in the invariant). A maximum swap fee is general protection for users. With no limits at the Vault level,
 * a pool could specify a near 100% swap fee, effectively disabling trading. Though there are some use cases, such as
 * LVR/MEV strategies, where a very high fee makes sense.
 *
 * Note that the Vault does ensure that dynamic and aggregate fees are less than 100% to prevent attempting to allocate
 * more fees than were collected by the operation. The true `MAX_FEE_PERCENTAGE` is defined in VaultTypes.sol, and is
 * the highest value below 100% that satisfies the precision requirements.
 */
interface ISwapFeePercentageBounds {
    /// @return minimumSwapFeePercentage The minimum swap fee percentage for a pool
    function getMinimumSwapFeePercentage() external view returns (uint256 minimumSwapFeePercentage);

    /// @return maximumSwapFeePercentage The maximum swap fee percentage for a pool
    function getMaximumSwapFeePercentage() external view returns (uint256 maximumSwapFeePercentage);
}

// SPDX-License-Identifier: GPL-3.0-or-later

pragma solidity ^0.8.24;

/**
 * @notice Return the minimum/maximum invariant ratios allowed during an unbalanced liquidity operation.
 * @dev The Vault does not enforce any "baseline" bounds on invariant ratios, since such bounds are highly specific
 * and dependent on the math of each pool type. Instead, the Vault reads invariant ratio bounds from the pools.
 * `IBasePool` implements this interface to ensure that new pool developers think about and set these bounds according
 * to their pool type's math.
 *
 * For instance, Balancer Weighted Pool math involves exponentiation (the `pow` function), which uses natural
 * logarithms and a discrete Taylor series expansion to compute x^y values for the 18-decimal floating point numbers
 * used in all Vault computations. See `LogExpMath` and `WeightedMath` for a derivation of the bounds for these pools.
 */
interface IUnbalancedLiquidityInvariantRatioBounds {
    /// @return minimumInvariantRatio The minimum invariant ratio for a pool during unbalanced remove liquidity
    function getMinimumInvariantRatio() external view returns (uint256 minimumInvariantRatio);

    /// @return maximumInvariantRatio The maximum invariant ratio for a pool during unbalanced add liquidity
    function getMaximumInvariantRatio() external view returns (uint256 maximumInvariantRatio);
}

// SPDX-License-Identifier: GPL-3.0-or-later

pragma solidity ^0.8.24;

import { IAuthentication } from "../solidity-utils/helpers/IAuthentication.sol";
import { IVaultExtension } from "./IVaultExtension.sol";
import { IVaultErrors } from "./IVaultErrors.sol";
import { IVaultEvents } from "./IVaultEvents.sol";
import { IVaultAdmin } from "./IVaultAdmin.sol";
import { IVaultMain } from "./IVaultMain.sol";

/// @notice Composite interface for all Vault operations: swap, add/remove liquidity, and associated queries.
interface IVault is IVaultMain, IVaultExtension, IVaultAdmin, IVaultErrors, IVaultEvents, IAuthentication {
    /// @return vault The main Vault address.
    function vault() external view override(IVaultAdmin, IVaultExtension) returns (IVault);
}

// SPDX-License-Identifier: GPL-3.0-or-later

pragma solidity ^0.8.24;

import { IERC4626 } from "@openzeppelin/contracts/interfaces/IERC4626.sol";

import { IProtocolFeeController } from "./IProtocolFeeController.sol";
import { IAuthorizer } from "./IAuthorizer.sol";
import { IVault } from "./IVault.sol";

/**
 * @notice Interface for functions defined on the `VaultAdmin` contract.
 * @dev `VaultAdmin` is the Proxy extension of `VaultExtension`, and handles the least critical operations,
 * as two delegate calls add gas to each call. Most of the permissioned calls are here.
 */
interface IVaultAdmin {
    /*******************************************************************************
                               Constants and immutables
    *******************************************************************************/

    /**
     * @notice Returns the main Vault address.
     * @dev The main Vault contains the entrypoint and main liquidity operation implementations.
     * @return vault The address of the main Vault
     */
    function vault() external view returns (IVault);

    /**
     * @notice Returns the Vault's pause window end time.
     * @dev This value is immutable, and represents the timestamp after which the Vault can no longer be paused
     * by governance. Balancer timestamps are 32 bits.
     *
     * @return pauseWindowEndTime The timestamp when the Vault's pause window ends
     */
    function getPauseWindowEndTime() external view returns (uint32 pauseWindowEndTime);

    /**
     * @notice Returns the Vault's buffer period duration.
     * @dev This value is immutable. It represents the period during which, if paused, the Vault will remain paused.
     * This ensures there is time available to address whatever issue caused the Vault to be paused. Balancer
     * timestamps are 32 bits.
     *
     * @return bufferPeriodDuration The length of the buffer period in seconds
     */
    function getBufferPeriodDuration() external view returns (uint32 bufferPeriodDuration);

    /**
     * @notice Returns the Vault's buffer period end time.
     * @dev This value is immutable. If already paused, the Vault can be unpaused until this timestamp. Balancer
     * timestamps are 32 bits.
     *
     * @return bufferPeriodEndTime The timestamp after which the Vault remains permanently unpaused
     */
    function getBufferPeriodEndTime() external view returns (uint32 bufferPeriodEndTime);

    /**
     * @notice Get the minimum number of tokens in a pool.
     * @dev We expect the vast majority of pools to be 2-token.
     * @return minTokens The minimum token count of a pool
     */
    function getMinimumPoolTokens() external pure returns (uint256 minTokens);

    /**
     * @notice Get the maximum number of tokens in a pool.
     * @return maxTokens The maximum token count of a pool
     */
    function getMaximumPoolTokens() external pure returns (uint256 maxTokens);

    /**
     * @notice Get the minimum total supply of pool tokens (BPT) for an initialized pool.
     * @dev This prevents pools from being completely drained. When the pool is initialized, this minimum amount of BPT
     * is minted to the zero address. This is an 18-decimal floating point number; BPT are always 18 decimals.
     *
     * @return poolMinimumTotalSupply The minimum total supply a pool can have after initialization
     */
    function getPoolMinimumTotalSupply() external pure returns (uint256 poolMinimumTotalSupply);

    /**
     * @notice Get the minimum total supply of an ERC4626 wrapped token buffer in the Vault.
     * @dev This prevents buffers from being completely drained. When the buffer is initialized, this minimum number
     * of shares is added to the shares resulting from the initial deposit. Buffer total supply accounting is internal
     * to the Vault, as buffers are not tokenized.
     *
     * @return bufferMinimumTotalSupply The minimum total supply a buffer can have after initialization
     */
    function getBufferMinimumTotalSupply() external pure returns (uint256 bufferMinimumTotalSupply);

    /**
     * @notice Get the minimum trade amount in a pool operation.
     * @dev This limit is applied to the 18-decimal "upscaled" amount in any operation (swap, add/remove liquidity).
     * @return minimumTradeAmount The minimum trade amount as an 18-decimal floating point number
     */
    function getMinimumTradeAmount() external view returns (uint256 minimumTradeAmount);

    /**
     * @notice Get the minimum wrap amount in a buffer operation.
     * @dev This limit is applied to the wrap operation amount, in native underlying token decimals.
     * @return minimumWrapAmount The minimum wrap amount in native underlying token decimals
     */
    function getMinimumWrapAmount() external view returns (uint256 minimumWrapAmount);

    /*******************************************************************************
                                    Vault Pausing
    *******************************************************************************/

    /**
     * @notice Indicates whether the Vault is paused.
     * @dev If the Vault is paused, all non-Recovery Mode state-changing operations on pools will revert. Note that
     * ERC4626 buffers and the Vault have separate and independent pausing mechanisms. Pausing the Vault does not
     * also pause buffers (though we anticipate they would likely be paused and unpaused together). Call
     * `areBuffersPaused` to check the pause state of the buffers.
     *
     * @return vaultPaused True if the Vault is paused
     */
    function isVaultPaused() external view returns (bool vaultPaused);

    /**
     * @notice Returns the paused status, and end times of the Vault's pause window and buffer period.
     * @dev Balancer timestamps are 32 bits.
     * @return vaultPaused True if the Vault is paused
     * @return vaultPauseWindowEndTime The timestamp of the end of the Vault's pause window
     * @return vaultBufferPeriodEndTime The timestamp of the end of the Vault's buffer period
     */
    function getVaultPausedState()
        external
        view
        returns (bool vaultPaused, uint32 vaultPauseWindowEndTime, uint32 vaultBufferPeriodEndTime);

    /**
     * @notice Pause the Vault: an emergency action which disables all operational state-changing functions on pools.
     * @dev This is a permissioned function that will only work during the Pause Window set during deployment.
     * Note that ERC4626 buffer operations have an independent pause mechanism, which is not affected by pausing
     * the Vault. Custom routers could still wrap/unwrap using buffers while the Vault is paused, unless buffers
     * are also paused (with `pauseVaultBuffers`).
     */
    function pauseVault() external;

    /**
     * @notice Reverse a `pause` operation, and restore Vault pool operations to normal functionality.
     * @dev This is a permissioned function that will only work on a paused Vault within the Buffer Period set during
     * deployment. Note that the Vault will automatically unpause after the Buffer Period expires. As noted above,
     * ERC4626 buffers and Vault operations on pools are independent. Unpausing the Vault does not reverse
     * `pauseVaultBuffers`. If buffers were also paused, they will remain in that state until explicitly unpaused.
     */
    function unpauseVault() external;

    /*******************************************************************************
                                    Pool Pausing
    *******************************************************************************/

    /**
     * @notice Pause the Pool: an emergency action which disables all pool functions.
     * @dev This is a permissioned function that will only work during the Pause Window set during pool factory
     * deployment.
     *
     * @param pool The pool being paused
     */
    function pausePool(address pool) external;

    /**
     * @notice Reverse a `pause` operation, and restore the Pool to normal functionality.
     * @dev This is a permissioned function that will only work on a paused Pool within the Buffer Period set during
     * deployment. Note that the Pool will automatically unpause after the Buffer Period expires.
     *
     * @param pool The pool being unpaused
     */
    function unpausePool(address pool) external;

    /*******************************************************************************
                                         Fees
    *******************************************************************************/

    /**
     * @notice Assigns a new static swap fee percentage to the specified pool.
     * @dev This is a permissioned function, disabled if the pool is paused. The swap fee percentage must be within
     * the bounds specified by the pool's implementation of `ISwapFeePercentageBounds`.
     * Emits the SwapFeePercentageChanged event.
     *
     * @param pool The address of the pool for which the static swap fee will be changed
     * @param swapFeePercentage The new swap fee percentage to apply to the pool
     */
    function setStaticSwapFeePercentage(address pool, uint256 swapFeePercentage) external;

    /**
     * @notice Collects accumulated aggregate swap and yield fees for the specified pool.
     * @dev Fees are sent to the ProtocolFeeController address.
     * @param pool The pool on which all aggregate fees should be collected
     * @return swapFeeAmounts An array with the total swap fees collected, sorted in token registration order
     * @return yieldFeeAmounts An array with the total yield fees collected, sorted in token registration order
     */
    function collectAggregateFees(
        address pool
    ) external returns (uint256[] memory swapFeeAmounts, uint256[] memory yieldFeeAmounts);

    /**
     * @notice Update an aggregate swap fee percentage.
     * @dev Can only be called by the current protocol fee controller. Called when governance overrides a protocol fee
     * for a specific pool, or to permissionlessly update a pool to a changed global protocol fee value (if the pool's
     * fee has not previously been set by governance). Ensures the aggregate percentage <= FixedPoint.ONE, and also
     * that the final value does not lose precision when stored in 24 bits (see `FEE_BITLENGTH` in VaultTypes.sol).
     * Emits an `AggregateSwapFeePercentageChanged` event.
     *
     * @param pool The pool whose swap fee percentage will be updated
     * @param newAggregateSwapFeePercentage The new aggregate swap fee percentage
     */
    function updateAggregateSwapFeePercentage(address pool, uint256 newAggregateSwapFeePercentage) external;

    /**
     * @notice Update an aggregate yield fee percentage.
     * @dev Can only be called by the current protocol fee controller. Called when governance overrides a protocol fee
     * for a specific pool, or to permissionlessly update a pool to a changed global protocol fee value (if the pool's
     * fee has not previously been set by governance). Ensures the aggregate percentage <= FixedPoint.ONE, and also
     * that the final value does not lose precision when stored in 24 bits (see `FEE_BITLENGTH` in VaultTypes.sol).
     * Emits an `AggregateYieldFeePercentageChanged` event.
     *
     * @param pool The pool whose yield fee percentage will be updated
     * @param newAggregateYieldFeePercentage The new aggregate yield fee percentage
     */
    function updateAggregateYieldFeePercentage(address pool, uint256 newAggregateYieldFeePercentage) external;

    /**
     * @notice Sets a new Protocol Fee Controller for the Vault.
     * @dev This is a permissioned call. Emits a `ProtocolFeeControllerChanged` event.
     * @param newProtocolFeeController The address of the new Protocol Fee Controller
     */
    function setProtocolFeeController(IProtocolFeeController newProtocolFeeController) external;

    /*******************************************************************************
                                    Recovery Mode
    *******************************************************************************/

    /**
     * @notice Enable recovery mode for a pool.
     * @dev This is a permissioned function. It enables a safe proportional withdrawal, with no external calls.
     * Since there are no external calls, ensuring that entering Recovery Mode cannot fail, we cannot compute and so
     * must forfeit any yield fees between the last operation and enabling Recovery Mode. For the same reason, live
     * balances cannot be updated while in Recovery Mode, as doing so might cause withdrawals to fail.
     *
     * @param pool The address of the pool
     */
    function enableRecoveryMode(address pool) external;

    /**
     * @notice Disable recovery mode for a pool.
     * @dev This is a permissioned function. It re-syncs live balances (which could not be updated during
     * Recovery Mode), forfeiting any yield fees that accrued while enabled. It makes external calls, and could
     * potentially fail if there is an issue with any associated Rate Providers.
     *
     * @param pool The address of the pool
     */
    function disableRecoveryMode(address pool) external;

    /*******************************************************************************
                                  Query Functionality
    *******************************************************************************/

    /**
     * @notice Disables query functionality on the Vault. Can only be called by governance.
     * @dev The query functions rely on a specific EVM feature to detect static calls. Query operations are exempt from
     * settlement constraints, so it's critical that no state changes can occur. We retain the ability to disable
     * queries in the unlikely event that EVM changes violate its assumptions (perhaps on an L2).
     * This function can be acted upon as an emergency measure in ambiguous contexts where it's not 100% clear whether
     * disabling queries is completely necessary; queries can still be re-enabled after this call.
     */
    function disableQuery() external;

    /**
     * @notice Disables query functionality permanently on the Vault. Can only be called by governance.
     * @dev Shall only be used when there is no doubt that queries pose a fundamental threat to the system.
     */
    function disableQueryPermanently() external;

    /**
     * @notice Enables query functionality on the Vault. Can only be called by governance.
     * @dev Only works if queries are not permanently disabled.
     */
    function enableQuery() external;

    /*******************************************************************************
                                  ERC4626 Buffers
    *******************************************************************************/

    /**
     * @notice Indicates whether the Vault buffers are paused.
     * @dev When buffers are paused, all buffer operations (i.e., calls on the Router with `isBuffer` true)
     * will revert. Pausing buffers is reversible. Note that ERC4626 buffers and the Vault have separate and
     * independent pausing mechanisms. Pausing the Vault does not also pause buffers (though we anticipate they
     * would likely be paused and unpaused together). Call `isVaultPaused` to check the pause state of the Vault.
     *
     * @return buffersPaused True if the Vault buffers are paused
     */
    function areBuffersPaused() external view returns (bool buffersPaused);

    /**
     * @notice Pauses native vault buffers globally.
     * @dev When buffers are paused, it's not possible to add liquidity or wrap/unwrap tokens using the Vault's
     * `erc4626BufferWrapOrUnwrap` primitive. However, it's still possible to remove liquidity. Currently it's not
     * possible to pause vault buffers individually.
     *
     * This is a permissioned call, and is reversible (see `unpauseVaultBuffers`). Note that the Vault has a separate
     * and independent pausing mechanism. It is possible to pause the Vault (i.e. pool operations), without affecting
     * buffers, and vice versa.
     */
    function pauseVaultBuffers() external;

    /**
     * @notice Unpauses native vault buffers globally.
     * @dev When buffers are paused, it's not possible to add liquidity or wrap/unwrap tokens using the Vault's
     * `erc4626BufferWrapOrUnwrap` primitive. However, it's still possible to remove liquidity. As noted above,
     * ERC4626 buffers and Vault operations on pools are independent. Unpausing buffers does not reverse `pauseVault`.
     * If the Vault was also paused, it will remain in that state until explicitly unpaused.
     *
     * This is a permissioned call.
     */
    function unpauseVaultBuffers() external;

    /**
     * @notice Initializes buffer for the given wrapped token.
     * @param wrappedToken Address of the wrapped token that implements IERC4626
     * @param amountUnderlyingRaw Amount of underlying tokens that will be deposited into the buffer
     * @param amountWrappedRaw Amount of wrapped tokens that will be deposited into the buffer
     * @param minIssuedShares Minimum amount of shares to receive from the buffer, expressed in underlying token
     * native decimals
     * @param sharesOwner Address that will own the deposited liquidity. Only this address will be able to remove
     * liquidity from the buffer
     * @return issuedShares the amount of tokens sharesOwner has in the buffer, expressed in underlying token amounts.
     * (it is the BPT of an internal ERC4626 buffer). It is expressed in underlying token native decimals.
     */
    function initializeBuffer(
        IERC4626 wrappedToken,
        uint256 amountUnderlyingRaw,
        uint256 amountWrappedRaw,
        uint256 minIssuedShares,
        address sharesOwner
    ) external returns (uint256 issuedShares);

    /**
     * @notice Adds liquidity to an internal ERC4626 buffer in the Vault, proportionally.
     * @dev The buffer needs to be initialized beforehand.
     * @param wrappedToken Address of the wrapped token that implements IERC4626
     * @param maxAmountUnderlyingInRaw Maximum amount of underlying tokens to add to the buffer. It is expressed in
     * underlying token native decimals
     * @param maxAmountWrappedInRaw Maximum amount of wrapped tokens to add to the buffer. It is expressed in wrapped
     * token native decimals
     * @param exactSharesToIssue The value in underlying tokens that `sharesOwner` wants to add to the buffer,
     * in underlying token decimals
     * @param sharesOwner Address that will own the deposited liquidity. Only this address will be able to remove
     * liquidity from the buffer
     * @return amountUnderlyingRaw Amount of underlying tokens deposited into the buffer
     * @return amountWrappedRaw Amount of wrapped tokens deposited into the buffer
     */
    function addLiquidityToBuffer(
        IERC4626 wrappedToken,
        uint256 maxAmountUnderlyingInRaw,
        uint256 maxAmountWrappedInRaw,
        uint256 exactSharesToIssue,
        address sharesOwner
    ) external returns (uint256 amountUnderlyingRaw, uint256 amountWrappedRaw);

    /**
     * @notice Removes liquidity from an internal ERC4626 buffer in the Vault.
     * @dev Only proportional exits are supported, and the sender has to be the owner of the shares.
     * This function unlocks the Vault just for this operation; it does not work with a Router as an entrypoint.
     *
     * Pre-conditions:
     * - The buffer needs to be initialized.
     * - sharesOwner is the original msg.sender, it needs to be checked in the Router. That's why
     *   this call is authenticated; only routers approved by the DAO can remove the liquidity of a buffer.
     * - The buffer needs to have some liquidity and have its asset registered in `_bufferAssets` storage.
     *
     * @param wrappedToken Address of the wrapped token that implements IERC4626
     * @param sharesToRemove Amount of shares to remove from the buffer. Cannot be greater than sharesOwner's
     * total shares. It is expressed in underlying token native decimals
     * @param minAmountUnderlyingOutRaw Minimum amount of underlying tokens to receive from the buffer. It is expressed
     * in underlying token native decimals
     * @param minAmountWrappedOutRaw Minimum amount of wrapped tokens to receive from the buffer. It is expressed in
     * wrapped token native decimals
     * @return removedUnderlyingBalanceRaw Amount of underlying tokens returned to the user
     * @return removedWrappedBalanceRaw Amount of wrapped tokens returned to the user
     */
    function removeLiquidityFromBuffer(
        IERC4626 wrappedToken,
        uint256 sharesToRemove,
        uint256 minAmountUnderlyingOutRaw,
        uint256 minAmountWrappedOutRaw
    ) external returns (uint256 removedUnderlyingBalanceRaw, uint256 removedWrappedBalanceRaw);

    /**
     * @notice Returns the asset registered for a given wrapped token.
     * @dev The asset can never change after buffer initialization.
     * @param wrappedToken Address of the wrapped token that implements IERC4626
     * @return underlyingToken Address of the underlying token registered for the wrapper; `address(0)` if the buffer
     * has not been initialized.
     */
    function getBufferAsset(IERC4626 wrappedToken) external view returns (address underlyingToken);

    /**
     * @notice Returns the shares (internal buffer BPT) of a liquidity owner: a user that deposited assets
     * in the buffer.
     *
     * @param wrappedToken Address of the wrapped token that implements IERC4626
     * @param liquidityOwner Address of the user that owns liquidity in the wrapped token's buffer
     * @return ownerShares Amount of shares allocated to the liquidity owner, in native underlying token decimals
     */
    function getBufferOwnerShares(
        IERC4626 wrappedToken,
        address liquidityOwner
    ) external view returns (uint256 ownerShares);

    /**
     * @notice Returns the supply shares (internal buffer BPT) of the ERC4626 buffer.
     * @param wrappedToken Address of the wrapped token that implements IERC4626
     * @return bufferShares Amount of supply shares of the buffer, in native underlying token decimals
     */
    function getBufferTotalShares(IERC4626 wrappedToken) external view returns (uint256 bufferShares);

    /**
     * @notice Returns the amount of underlying and wrapped tokens deposited in the internal buffer of the Vault.
     * @dev All values are in native token decimals of the wrapped or underlying tokens.
     * @param wrappedToken Address of the wrapped token that implements IERC4626
     * @return underlyingBalanceRaw Amount of underlying tokens deposited into the buffer, in native token decimals
     * @return wrappedBalanceRaw Amount of wrapped tokens deposited into the buffer, in native token decimals
     */
    function getBufferBalance(
        IERC4626 wrappedToken
    ) external view returns (uint256 underlyingBalanceRaw, uint256 wrappedBalanceRaw);

    /*******************************************************************************
                                Authentication
    *******************************************************************************/

    /**
     * @notice Sets a new Authorizer for the Vault.
     * @dev This is a permissioned call. Emits an `AuthorizerChanged` event.
     * @param newAuthorizer The address of the new authorizer
     */
    function setAuthorizer(IAuthorizer newAuthorizer) external;
}

// SPDX-License-Identifier: GPL-3.0-or-later

pragma solidity ^0.8.24;

import { IERC4626 } from "@openzeppelin/contracts/interfaces/IERC4626.sol";
import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol";

/// @notice Errors are declared inside an interface (namespace) to improve DX with Typechain.
interface IVaultErrors {
    /*******************************************************************************
                            Registration and Initialization
    *******************************************************************************/

    /**
     * @notice A pool has already been registered. `registerPool` may only be called once.
     * @param pool The already registered pool
     */
    error PoolAlreadyRegistered(address pool);

    /**
     * @notice A pool has already been initialized. `initialize` may only be called once.
     * @param pool The already initialized pool
     */
    error PoolAlreadyInitialized(address pool);

    /**
     * @notice A pool has not been registered.
     * @param pool The unregistered pool
     */
    error PoolNotRegistered(address pool);

    /**
     * @notice A referenced pool has not been initialized.
     * @param pool The uninitialized pool
     */
    error PoolNotInitialized(address pool);

    /**
     * @notice A hook contract rejected a pool on registration.
     * @param poolHooksContract Address of the hook contract that rejected the pool registration
     * @param pool Address of the rejected pool
     * @param poolFactory Address of the pool factory
     */
    error HookRegistrationFailed(address poolHooksContract, address pool, address poolFactory);

    /**
     * @notice A token was already registered (i.e., it is a duplicate in the pool).
     * @param token The duplicate token
     */
    error TokenAlreadyRegistered(IERC20 token);

    /// @notice The token count is below the minimum allowed.
    error MinTokens();

    /// @notice The token count is above the maximum allowed.
    error MaxTokens();

    /// @notice Invalid tokens (e.g., zero) cannot be registered.
    error InvalidToken();

    /// @notice The token type given in a TokenConfig during pool registration is invalid.
    error InvalidTokenType();

    /// @notice The data in a TokenConfig struct is inconsistent or unsupported.
    error InvalidTokenConfiguration();

    /// @notice Tokens with more than 18 decimals are not supported.
    error InvalidTokenDecimals();

    /**
     * @notice The token list passed into an operation does not match the pool tokens in the pool.
     * @param pool Address of the pool
     * @param expectedToken The correct token at a given index in the pool
     * @param actualToken The actual token found at that index
     */
    error TokensMismatch(address pool, address expectedToken, address actualToken);

    /*******************************************************************************
                                 Transient Accounting
    *******************************************************************************/

    /// @notice A transient accounting operation completed with outstanding token deltas.
    error BalanceNotSettled();

    /// @notice A user called a Vault function (swap, add/remove liquidity) outside the lock context.
    error VaultIsNotUnlocked();

    /// @notice The pool has returned false to the beforeSwap hook, indicating the transaction should revert.
    error DynamicSwapFeeHookFailed();

    /// @notice The pool has returned false to the beforeSwap hook, indicating the transaction should revert.
    error BeforeSwapHookFailed();

    /// @notice The pool has returned false to the afterSwap hook, indicating the transaction should revert.
    error AfterSwapHookFailed();

    /// @notice The pool has returned false to the beforeInitialize hook, indicating the transaction should revert.
    error BeforeInitializeHookFailed();

    /// @notice The pool has returned false to the afterInitialize hook, indicating the transaction should revert.
    error AfterInitializeHookFailed();

    /// @notice The pool has returned false to the beforeAddLiquidity hook, indicating the transaction should revert.
    error BeforeAddLiquidityHookFailed();

    /// @notice The pool has returned false to the afterAddLiquidity hook, indicating the transaction should revert.
    error AfterAddLiquidityHookFailed();

    /// @notice The pool has returned false to the beforeRemoveLiquidity hook, indicating the transaction should revert.
    error BeforeRemoveLiquidityHookFailed();

    /// @notice The pool has returned false to the afterRemoveLiquidity hook, indicating the transaction should revert.
    error AfterRemoveLiquidityHookFailed();

    /// @notice An unauthorized Router tried to call a permissioned function (i.e., using the Vault's token allowance).
    error RouterNotTrusted();

    /*******************************************************************************
                                        Swaps
    *******************************************************************************/

    /// @notice The user tried to swap zero tokens.
    error AmountGivenZero();

    /// @notice The user attempted to swap a token for itself.
    error CannotSwapSameToken();

    /**
     * @notice The user attempted to operate with a token that is not in the pool.
     * @param token The unregistered token
     */
    error TokenNotRegistered(IERC20 token);

    /**
     * @notice An amount in or out has exceeded the limit specified in the swap request.
     * @param amount The total amount in or out
     * @param limit The amount of the limit that has been exceeded
     */
    error SwapLimit(uint256 amount, uint256 limit);

    /**
     * @notice A hook adjusted amount in or out has exceeded the limit specified in the swap request.
     * @param amount The total amount in or out
     * @param limit The amount of the limit that has been exceeded
     */
    error HookAdjustedSwapLimit(uint256 amount, uint256 limit);

    /// @notice The amount given or calculated for an operation is below the minimum limit.
    error TradeAmountTooSmall();

    /*******************************************************************************
                                    Add Liquidity
    *******************************************************************************/

    /// @notice Add liquidity kind not supported.
    error InvalidAddLiquidityKind();

    /**
     * @notice A required amountIn exceeds the maximum limit specified for the operation.
     * @param tokenIn The incoming token
     * @param amountIn The total token amount in
     * @param maxAmountIn The amount of the limit that has been exceeded
     */
    error AmountInAboveMax(IERC20 tokenIn, uint256 amountIn, uint256 maxAmountIn);

    /**
     * @notice A hook adjusted amountIn exceeds the maximum limit specified for the operation.
     * @param tokenIn The incoming token
     * @param amountIn The total token amount in
     * @param maxAmountIn The amount of the limit that has been exceeded
     */
    error HookAdjustedAmountInAboveMax(IERC20 tokenIn, uint256 amountIn, uint256 maxAmountIn);

    /**
     * @notice The BPT amount received from adding liquidity is below the minimum specified for the operation.
     * @param amountOut The total BPT amount out
     * @param minAmountOut The amount of the limit that has been exceeded
     */
    error BptAmountOutBelowMin(uint256 amountOut, uint256 minAmountOut);

    /// @notice Pool does not support adding liquidity with a customized input.
    error DoesNotSupportAddLiquidityCustom();

    /// @notice Pool does not support adding liquidity through donation.
    error DoesNotSupportDonation();

    /*******************************************************************************
                                    Remove Liquidity
    *******************************************************************************/

    /// @notice Remove liquidity kind not supported.
    error InvalidRemoveLiquidityKind();

    /**
     * @notice The actual amount out is below the minimum limit specified for the operation.
     * @param tokenOut The outgoing token
     * @param amountOut The total BPT amount out
     * @param minAmountOut The amount of the limit that has been exceeded
     */
    error AmountOutBelowMin(IERC20 tokenOut, uint256 amountOut, uint256 minAmountOut);

    /**
     * @notice The hook adjusted amount out is below the minimum limit specified for the operation.
     * @param tokenOut The outgoing token
     * @param amountOut The total BPT amount out
     * @param minAmountOut The amount of the limit that has been exceeded
     */
    error HookAdjustedAmountOutBelowMin(IERC20 tokenOut, uint256 amountOut, uint256 minAmountOut);

    /**
     * @notice The required BPT amount in exceeds the maximum limit specified for the operation.
     * @param amountIn The total BPT amount in
     * @param maxAmountIn The amount of the limit that has been exceeded
     */
    error BptAmountInAboveMax(uint256 amountIn, uint256 maxAmountIn);

    /// @notice Pool does not support removing liquidity with a customized input.
    error DoesNotSupportRemoveLiquidityCustom();

    /*******************************************************************************
                                     Fees
    *******************************************************************************/

    /**
     * @notice Error raised when there is an overflow in the fee calculation.
     * @dev This occurs when the sum of the parts (aggregate swap or yield fee) is greater than the whole
     * (total swap or yield fee). Also validated when the protocol fee controller updates aggregate fee
     * percentages in the Vault.
     */
    error ProtocolFeesExceedTotalCollected();

    /**
     * @notice Error raised when the swap fee percentage is less than the minimum allowed value.
     * @dev The Vault itself does not impose a universal minimum. Rather, it validates against the
     * range specified by the `ISwapFeePercentageBounds` interface. and reverts with this error
     * if it is below the minimum value returned by the pool.
     *
     * Pools with dynamic fees do not check these limits.
     */
    error SwapFeePercentageTooLow();

    /**
     * @notice Error raised when the swap fee percentage is greater than the maximum allowed value.
     * @dev The Vault itself does not impose a universal minimum. Rather, it validates against the
     * range specified by the `ISwapFeePercentageBounds` interface. and reverts with this error
     * if it is above the maximum value returned by the pool.
     *
     * Pools with dynamic fees do not check these limits.
     */
    error SwapFeePercentageTooHigh();

    /**
     * @notice Primary fee percentages result in an aggregate fee that cannot be stored with the required precision.
     * @dev Primary fee percentages are 18-decimal values, stored here in 64 bits, and calculated with full 256-bit
     * precision. However, the resulting aggregate fees are stored in the Vault with 24-bit precision, which
     * corresponds to 0.00001% resolution (i.e., a fee can be 1%, 1.00001%, 1.00002%, but not 1.000005%).
     * Disallow setting fees such that there would be precision loss in the Vault, leading to a discrepancy between
     * the aggregate fee calculated here and that stored in the Vault.
     */
    error FeePrecisionTooHigh();

    /// @notice A given percentage is above the maximum (usually a value close to FixedPoint.ONE, or 1e18 wei).
    error PercentageAboveMax();

    /*******************************************************************************
                                    Queries
    *******************************************************************************/

    /// @notice A user tried to execute a query operation when they were disabled.
    error QueriesDisabled();

    /// @notice An admin tried to re-enable queries, but they were disabled permanently.
    error QueriesDisabledPermanently();

    /*******************************************************************************
                                Recovery Mode
    *******************************************************************************/

    /**
     * @notice Cannot enable recovery mode when already enabled.
     * @param pool The pool
     */
    error PoolInRecoveryMode(address pool);

    /**
     * @notice Cannot disable recovery mode when not enabled.
     * @param pool The pool
     */
    error PoolNotInRecoveryMode(address pool);

    /*******************************************************************************
                                Authentication
    *******************************************************************************/

    /**
     * @notice Error indicating the sender is not the Vault (e.g., someone is trying to call a permissioned function).
     * @param sender The account attempting to call a permissioned function
     */
    error SenderIsNotVault(address sender);

    /*******************************************************************************
                                        Pausing
    *******************************************************************************/

    /// @notice The caller specified a pause window period longer than the maximum.
    error VaultPauseWindowDurationTooLarge();

    /// @notice The caller specified a buffer period longer than the maximum.
    error PauseBufferPeriodDurationTooLarge();

    /// @notice A user tried to perform an operation while the Vault was paused.
    error VaultPaused();

    /// @notice Governance tried to unpause the Vault when it was not paused.
    error VaultNotPaused();

    /// @notice Governance tried to pause the Vault after the pause period expired.
    error VaultPauseWindowExpired();

    /**
     * @notice A user tried to perform an operation involving a paused Pool.
     * @param pool The paused pool
     */
    error PoolPaused(address pool);

    /**
     * @notice Governance tried to unpause the Pool when it was not paused.
     * @param pool The unpaused pool
     */
    error PoolNotPaused(address pool);

    /**
     * @notice Governance tried to pause a Pool after the pause period expired.
     * @param pool The pool
     */
    error PoolPauseWindowExpired(address pool);

    /*******************************************************************************
                                ERC4626 token buffers
    *******************************************************************************/

    /**
     * @notice The buffer for the given wrapped token was already initialized.
     * @param wrappedToken The wrapped token corresponding to the buffer
     */
    error BufferAlreadyInitialized(IERC4626 wrappedToken);

    /**
     * @notice The buffer for the given wrapped token was not initialized.
     * @param wrappedToken The wrapped token corresponding to the buffer
     */
    error BufferNotInitialized(IERC4626 wrappedToken);

    /// @notice The user is trying to remove more than their allocated shares from the buffer.
    error NotEnoughBufferShares();

    /**
     * @notice The wrapped token asset does not match the underlying token.
     * @dev This should never happen, but a malicious wrapper contract might not return the correct address.
     * Legitimate wrapper contracts should make the asset a constant or immutable value.
     *
     * @param wrappedToken The wrapped token corresponding to the buffer
     * @param underlyingToken The underlying token returned by `asset`
     */
    error WrongUnderlyingToken(IERC4626 wrappedToken, address underlyingToken);

    /**
     * @notice A wrapped token reported the zero address as its underlying token asset.
     * @dev This should never happen, but a malicious wrapper contract might do this (e.g., in an attempt to
     * re-initialize the buffer).
     *
     * @param wrappedToken The wrapped token corresponding to the buffer
     */
    error InvalidUnderlyingToken(IERC4626 wrappedToken);

    /**
     * @notice The amount given to wrap/unwrap was too small, which can introduce rounding issues.
     * @param wrappedToken The wrapped token corresponding to the buffer
     */
    error WrapAmountTooSmall(IERC4626 wrappedToken);

    /// @notice Buffer operation attempted while vault buffers are paused.
    error VaultBuffersArePaused();

    /// @notice Buffer shares were minted to the zero address.
    error BufferSharesInvalidReceiver();

    /// @notice Buffer shares were burned from the zero address.
    error BufferSharesInvalidOwner();

    /**
     * @notice The total supply of a buffer can't be lower than the absolute minimum.
     * @param totalSupply The total supply value that was below the minimum
     */
    error BufferTotalSupplyTooLow(uint256 totalSupply);

    /// @dev A wrap/unwrap operation consumed more or returned less underlying tokens than it should.
    error NotEnoughUnderlying(IERC4626 wrappedToken, uint256 expectedUnderlyingAmount, uint256 actualUnderlyingAmount);

    /// @dev A wrap/unwrap operation consumed more or returned less wrapped tokens than it should.
    error NotEnoughWrapped(IERC4626 wrappedToken, uint256 expectedWrappedAmount, uint256 actualWrappedAmount);

    /// @dev Shares issued during initialization are below the requested amount.
    error IssuedSharesBelowMin(uint256 issuedShares, uint256 minIssuedShares);

    /*******************************************************************************
                                    Miscellaneous
    *******************************************************************************/

    /// @notice Pool does not support adding / removing liquidity with an unbalanced input.
    error DoesNotSupportUnbalancedLiquidity();

    /// @notice The contract should not receive ETH.
    error CannotReceiveEth();

    /**
     * @notice The `VaultExtension` contract was called by an account directly.
     * @dev It can only be called by the Vault via delegatecall.
     */
    error NotVaultDelegateCall();

    /// @notice The `VaultExtension` contract was configured with an incorrect Vault address.
    error WrongVaultExtensionDeployment();

    /// @notice The `ProtocolFeeController` contract was configured with an incorrect Vault address.
    error WrongProtocolFeeControllerDeployment();

    /// @notice The `VaultAdmin` contract was configured with an incorrect Vault address.
    error WrongVaultAdminDeployment();

    /// @notice Quote reverted with a reserved error code.
    error QuoteResultSpoofed();
}

// SPDX-License-Identifier: GPL-3.0-or-later

pragma solidity ^0.8.24;

import { IERC4626 } from "@openzeppelin/contracts/interfaces/IERC4626.sol";
import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol";

import { IProtocolFeeController } from "./IProtocolFeeController.sol";
import { IAuthorizer } from "./IAuthorizer.sol";
import { IHooks } from "./IHooks.sol";
import "./VaultTypes.sol";

/// @dev Events are declared inside an interface (namespace) to improve DX with Typechain.
interface IVaultEvents {
    /**
     * @notice A Pool was registered by calling `registerPool`.
     * @param pool The pool being registered
     * @param factory The factory creating the pool
     * @param tokenConfig An array of descriptors for the tokens the pool will manage
     * @param swapFeePercentage The static swap fee of the pool
     * @param pauseWindowEndTime The pool's pause window end time
     * @param roleAccounts Addresses the Vault will allow to change certain pool settings
     * @param hooksConfig Flags indicating which hooks the pool supports and address of hooks contract
     * @param liquidityManagement Supported liquidity management hook flags
     */
    event PoolRegistered(
        address indexed pool,
        address indexed factory,
        TokenConfig[] tokenConfig,
        uint256 swapFeePercentage,
        uint32 pauseWindowEndTime,
        PoolRoleAccounts roleAccounts,
        HooksConfig hooksConfig,
        LiquidityManagement liquidityManagement
    );

    /**
     * @notice A Pool was initialized by calling `initialize`.
     * @param pool The pool being initialized
     */
    event PoolInitialized(address indexed pool);

    /**
     * @notice A swap has occurred.
     * @param pool The pool with the tokens being swapped
     * @param tokenIn The token entering the Vault (balance increases)
     * @param tokenOut The token leaving the Vault (balance decreases)
     * @param amountIn Number of tokenIn tokens
     * @param amountOut Number of tokenOut tokens
     * @param swapFeePercentage Swap fee percentage applied (can differ if dynamic)
     * @param swapFeeAmount Swap fee amount paid
     */
    event Swap(
        address indexed pool,
        IERC20 indexed tokenIn,
        IERC20 indexed tokenOut,
        uint256 amountIn,
        uint256 amountOut,
        uint256 swapFeePercentage,
        uint256 swapFeeAmount
    );

    /**
     * @notice A wrap operation has occurred.
     * @param wrappedToken The wrapped token address
     * @param depositedUnderlying Number of underlying tokens deposited
     * @param mintedShares Number of shares (wrapped tokens) minted
     * @param bufferBalances The final buffer balances, packed in 128-bit words (underlying, wrapped)
     */
    event Wrap(
        IERC4626 indexed wrappedToken,
        uint256 depositedUnderlying,
        uint256 mintedShares,
        bytes32 bufferBalances
    );

    /**
     * @notice An unwrap operation has occurred.
     * @param wrappedToken The wrapped token address
     * @param burnedShares Number of shares (wrapped tokens) burned
     * @param withdrawnUnderlying Number of underlying tokens withdrawn
     * @param bufferBalances The final buffer balances, packed in 128-bit words (underlying, wrapped)
     */
    event Unwrap(
        IERC4626 indexed wrappedToken,
        uint256 burnedShares,
        uint256 withdrawnUnderlying,
        bytes32 bufferBalances
    );

    /**
     * @notice Liquidity has been added to a pool (including initialization).
     * @param pool The pool with liquidity added
     * @param liquidityProvider The user performing the operation
     * @param kind The add liquidity operation type (e.g., proportional, custom)
     * @param totalSupply The total supply of the pool after the operation
     * @param amountsAddedRaw The amount of each token that was added, sorted in token registration order
     * @param swapFeeAmountsRaw The total swap fees charged, sorted in token registration order
     */
    event LiquidityAdded(
        address indexed pool,
        address indexed liquidityProvider,
        AddLiquidityKind indexed kind,
        uint256 totalSupply,
        uint256[] amountsAddedRaw,
        uint256[] swapFeeAmountsRaw
    );

    /**
     * @notice Liquidity has been removed from a pool.
     * @param pool The pool with liquidity removed
     * @param liquidityProvider The user performing the operation
     * @param kind The remove liquidity operation type (e.g., proportional, custom)
     * @param totalSupply The total supply of the pool after the operation
     * @param amountsRemovedRaw The amount of each token that was removed, sorted in token registration order
     * @param swapFeeAmountsRaw The total swap fees charged, sorted in token registration order
     */
    event LiquidityRemoved(
        address indexed pool,
        address indexed liquidityProvider,
        RemoveLiquidityKind indexed kind,
        uint256 totalSupply,
        uint256[] amountsRemovedRaw,
        uint256[] swapFeeAmountsRaw
    );

    /**
     * @notice The Vault's pause status has changed.
     * @param paused True if the Vault was paused
     */
    event VaultPausedStateChanged(bool paused);

    /// @notice `disableQuery` has been called on the Vault, disabling query functionality.
    event VaultQueriesDisabled();

    /// @notice `enableQuery` has been called on the Vault, enabling query functionality.
    event VaultQueriesEnabled();

    /**
     * @notice A Pool's pause status has changed.
     * @param pool The pool that was just paused or unpaused
     * @param paused True if the pool was paused
     */
    event PoolPausedStateChanged(address indexed pool, bool paused);

    /**
     * @notice Emitted when the swap fee percentage of a pool is updated.
     * @param swapFeePercentage The new swap fee percentage for the pool
     */
    event SwapFeePercentageChanged(address indexed pool, uint256 swapFeePercentage);

    /**
     * @notice Recovery mode has been enabled or disabled for a pool.
     * @param pool The pool
     * @param recoveryMode True if recovery mode was enabled
     */
    event PoolRecoveryModeStateChanged(address indexed pool, bool recoveryMode);

    /**
     * @notice A protocol or pool creator fee has changed, causing an update to the aggregate swap fee.
     * @dev The `ProtocolFeeController` will emit an event with the underlying change.
     * @param pool The pool whose aggregate swap fee percentage changed
     * @param aggregateSwapFeePercentage The new aggregate swap fee percentage
     */
    event AggregateSwapFeePercentageChanged(address indexed pool, uint256 aggregateSwapFeePercentage);

    /**
     * @notice A protocol or pool creator fee has changed, causing an update to the aggregate yield fee.
     * @dev The `ProtocolFeeController` will emit an event with the underlying change.
     * @param pool The pool whose aggregate yield fee percentage changed
     * @param aggregateYieldFeePercentage The new aggregate yield fee percentage
     */
    event AggregateYieldFeePercentageChanged(address indexed pool, uint256 aggregateYieldFeePercentage);

    /**
     * @notice A new authorizer is set by `setAuthorizer`.
     * @param newAuthorizer The address of the new authorizer
     */
    event AuthorizerChanged(IAuthorizer indexed newAuthorizer);

    /**
     * @notice A new protocol fee controller is set by `setProtocolFeeController`.
     * @param newProtocolFeeController The address of the new protocol fee controller
     */
    event ProtocolFeeControllerChanged(IProtocolFeeController indexed newProtocolFeeController);

    /**
     * @notice Liquidity was added to an ERC4626 buffer corresponding to the given wrapped token.
     * @dev The underlying token can be derived from the wrapped token, so it's not included here.
     *
     * @param wrappedToken The wrapped token that identifies the buffer
     * @param amountUnderlying The amount of the underlying token that was deposited
     * @param amountWrapped The amount of the wrapped token that was deposited
     * @param bufferBalances The final buffer balances, packed in 128-bit words (underlying, wrapped)
     */
    event LiquidityAddedToBuffer(
        IERC4626 indexed wrappedToken,
        uint256 amountUnderlying,
        uint256 amountWrapped,
        bytes32 bufferBalances
    );

    /**
     * @notice Buffer shares were minted for an ERC4626 buffer corresponding to a given wrapped token.
     * @dev The shares are not tokenized like pool BPT, but accounted for in the Vault. `getBufferOwnerShares`
     * retrieves the current total shares for a given buffer and address, and `getBufferTotalShares` returns the
     * "totalSupply" of a buffer.
     *
     * @param wrappedToken The wrapped token that identifies the buffer
     * @param to The owner of the minted shares
     * @param issuedShares The amount of "internal BPT" shares created
     */
    event BufferSharesMinted(IERC4626 indexed wrappedToken, address indexed to, uint256 issuedShares);

    /**
     * @notice Buffer shares were burned for an ERC4626 buffer corresponding to a given wrapped token.
     * @dev The shares are not tokenized like pool BPT, but accounted for in the Vault. `getBufferOwnerShares`
     * retrieves the current total shares for a given buffer and address, and `getBufferTotalShares` returns the
     * "totalSupply" of a buffer.
     *
     * @param wrappedToken The wrapped token that identifies the buffer
     * @param from The owner of the burned shares
     * @param burnedShares The amount of "internal BPT" shares burned
     */
    event BufferSharesBurned(IERC4626 indexed wrappedToken, address indexed from, uint256 burnedShares);

    /**
     * @notice Liquidity was removed from an ERC4626 buffer.
     * @dev The underlying token can be derived from the wrapped token, so it's not included here.
     * @param wrappedToken The wrapped token that identifies the buffer
     * @param amountUnderlying The amount of the underlying token that was withdrawn
     * @param amountWrapped The amount of the wrapped token that was withdrawn
     * @param bufferBalances The final buffer balances, packed in 128-bit words (underlying, wrapped)
     */
    event LiquidityRemovedFromBuffer(
        IERC4626 indexed wrappedToken,
        uint256 amountUnderlying,
        uint256 amountWrapped,
        bytes32 bufferBalances
    );

    /**
     * @notice The Vault buffers pause status has changed.
     * @dev If buffers all paused, all buffer operations (i.e., all calls through the Router with `isBuffer`
     * set to true) will revert.
     *
     * @param paused True if the Vault buffers were paused
     */
    event VaultBuffersPausedStateChanged(bool paused);

    /**
     * @notice Pools can use this event to emit event data from the Vault.
     * @param pool Pool address
     * @param eventKey Event key
     * @param eventData Encoded event data
     */
    event VaultAuxiliary(address indexed pool, bytes32 indexed eventKey, bytes eventData);
}

// SPDX-License-Identifier: GPL-3.0-or-later

pragma solidity ^0.8.24;

import { IERC4626 } from "@openzeppelin/contracts/interfaces/IERC4626.sol";
import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol";

import { IAuthorizer } from "./IAuthorizer.sol";
import { IProtocolFeeController } from "./IProtocolFeeController.sol";
import { IVault } from "./IVault.sol";
import { IHooks } from "./IHooks.sol";
import "./VaultTypes.sol";

/**
 * @notice Interface for functions defined on the `VaultExtension` contract.
 * @dev `VaultExtension` handles less critical or frequently used functions, since delegate calls through
 * the Vault are more expensive than direct calls. The main Vault contains the core code for swaps and
 * liquidity operations.
 */
interface IVaultExtension {
    /*******************************************************************************
                              Constants and immutables
    *******************************************************************************/

    /**
     * @notice Returns the main Vault address.
     * @dev The main Vault contains the entrypoint and main liquidity operation implementations.
     * @return vault The address of the main Vault
     */
    function vault() external view returns (IVault);

    /**
     * @notice Returns the VaultAdmin contract address.
     * @dev The VaultAdmin contract mostly implements permissioned functions.
     * @return vaultAdmin The address of the Vault admin
     */
    function getVaultAdmin() external view returns (address vaultAdmin);

    /*******************************************************************************
                              Transient Accounting
    *******************************************************************************/

    /**
     * @notice Returns whether the Vault is unlocked (i.e., executing an operation).
     * @dev The Vault must be unlocked to perform state-changing liquidity operations.
     * @return unlocked True if the Vault is unlocked, false otherwise
     */
    function isUnlocked() external view returns (bool unlocked);

    /**
     *  @notice Returns the count of non-zero deltas.
     *  @return nonzeroDeltaCount The current value of `_nonzeroDeltaCount`
     */
    function getNonzeroDeltaCount() external view returns (uint256 nonzeroDeltaCount);

    /**
     * @notice Retrieves the token delta for a specific token.
     * @dev This function allows reading the value from the `_tokenDeltas` mapping.
     * @param token The token for which the delta is being fetched
     * @return tokenDelta The delta of the specified token
     */
    function getTokenDelta(IERC20 token) external view returns (int256 tokenDelta);

    /**
     * @notice Retrieves the reserve (i.e., total Vault balance) of a given token.
     * @param token The token for which to retrieve the reserve
     * @return reserveAmount The amount of reserves for the given token
     */
    function getReservesOf(IERC20 token) external view returns (uint256 reserveAmount);

    /**
     * @notice This flag is used to detect and tax "round-trip" interactions (adding and removing liquidity in the
     * same pool).
     * @dev Taxing remove liquidity proportional whenever liquidity was added in the same `unlock` call adds an extra
     * layer of security, discouraging operations that try to undo others for profit. Remove liquidity proportional
     * is the only standard way to exit a position without fees, and this flag is used to enable fees in that case.
     * It also discourages indirect swaps via unbalanced add and remove proportional, as they are expected to be worse
     * than a simple swap for every pool type.
     *
     * @param pool Address of the pool to check
     * @return liquidityAdded True if liquidity has been added to this pool in the current transaction
     
     * Note that there is no `sessionId` argument; it always returns the value for the current (i.e., latest) session.
     */
    function getAddLiquidityCalledFlag(address pool) external view returns (bool liquidityAdded);

    /*******************************************************************************
                                    Pool Registration
    *******************************************************************************/

    /**
     * @notice Registers a pool, associating it with its factory and the tokens it manages.
     * @dev A pool can opt-out of pausing by providing a zero value for the pause window, or allow pausing indefinitely
     * by providing a large value. (Pool pause windows are not limited by the Vault maximums.) The vault defines an
     * additional buffer period during which a paused pool will stay paused. After the buffer period passes, a paused
     * pool will automatically unpause. Balancer timestamps are 32 bits.
     *
     * A pool can opt out of Balancer governance pausing by providing a custom `pauseManager`. This might be a
     * multi-sig contract or an arbitrary smart contract with its own access controls, that forwards calls to
     * the Vault.
     *
     * If the zero address is provided for the `pauseManager`, permissions for pausing the pool will default to the
     * authorizer.
     *
     * @param pool The address of the pool being registered
     * @param tokenConfig An array of descriptors for the tokens the pool will manage
     * @param swapFeePercentage The initial static swap fee percentage of the pool
     * @param pauseWindowEndTime The timestamp after which it is no longer possible to pause the pool
     * @param protocolFeeExempt If true, the pool's initial aggregate fees will be set to 0
     * @param roleAccounts Addresses the Vault will allow to change certain pool settings
     * @param poolHooksContract Contract that implements the hooks for the pool
     * @param liquidityManagement Liquidity management flags with implemented methods
     */
    function registerPool(
        address pool,
        TokenConfig[] memory tokenConfig,
        uint256 swapFeePercentage,
        uint32 pauseWindowEndTime,
        bool protocolFeeExempt,
        PoolRoleAccounts calldata roleAccounts,
        address poolHooksContract,
        LiquidityManagement calldata liquidityManagement
    ) external;

    /**
     * @notice Checks whether a pool is registered.
     * @param pool Address of the pool to check
     * @return registered True if the pool is registered, false otherwise
     */
    function isPoolRegistered(address pool) external view returns (bool registered);

    /**
     * @notice Initializes a registered pool by adding liquidity; mints BPT tokens for the first time in exchange.
     * @param pool Address of the pool to initialize
     * @param to Address that will receive the output BPT
     * @param tokens Tokens used to seed the pool (must match the registered tokens)
     * @param exactAmountsIn Exact amounts of input tokens
     * @param minBptAmountOut Minimum amount of output pool tokens
     * @param userData Additional (optional) data required for adding initial liquidity
     * @return bptAmountOut Output pool token amount
     */
    function initialize(
        address pool,
        address to,
        IERC20[] memory tokens,
        uint256[] memory exactAmountsIn,
        uint256 minBptAmountOut,
        bytes memory userData
    ) external returns (uint256 bptAmountOut);

    /*******************************************************************************
                                    Pool Information
    *******************************************************************************/

    /**
     * @notice Checks whether a pool is initialized.
     * @dev An initialized pool can be considered registered as well.
     * @param pool Address of the pool to check
     * @return initialized True if the pool is initialized, false otherwise
     */
    function isPoolInitialized(address pool) external view returns (bool initialized);

    /**
     * @notice Gets the tokens registered to a pool.
     * @param pool Address of the pool
     * @return tokens List of tokens in the pool
     */
    function getPoolTokens(address pool) external view returns (IERC20[] memory tokens);

    /**
     * @notice Gets pool token rates.
     * @dev This function performs external calls if tokens are yield-bearing. All returned arrays are in token
     * registration order.
     *
     * @param pool Address of the pool
     * @return decimalScalingFactors Conversion factor used to adjust for token decimals for uniform precision in
     * calculations. FP(1) for 18-decimal tokens
     * @return tokenRates 18-decimal FP values for rate tokens (e.g., yield-bearing), or FP(1) for standard tokens
     */
    function getPoolTokenRates(
        address pool
    ) external view returns (uint256[] memory decimalScalingFactors, uint256[] memory tokenRates);

    /**
     * @notice Returns comprehensive pool data for the given pool.
     * @dev This contains the pool configuration (flags), tokens and token types, rates, scaling factors, and balances.
     * @param pool The address of the pool
     * @return poolData The `PoolData` result
     */
    function getPoolData(address pool) external view returns (PoolData memory poolData);

    /**
     * @notice Gets the raw data for a pool: tokens, raw balances, scaling factors.
     * @param pool Address of the pool
     * @return tokens The pool tokens, sorted in registration order
     * @return tokenInfo Token info structs (type, rate provider, yield flag), sorted in token registration order
     * @return balancesRaw Current native decimal balances of the pool tokens, sorted in token registration order
     * @return lastBalancesLiveScaled18 Last saved live balances, sorted in token registration order
     */
    function getPoolTokenInfo(
        address pool
    )
        external
        view
        returns (
            IERC20[] memory tokens,
            TokenInfo[] memory tokenInfo,
            uint256[] memory balancesRaw,
            uint256[] memory lastBalancesLiveScaled18
        );

    /**
     * @notice Gets current live balances of a given pool (fixed-point, 18 decimals), corresponding to its tokens in
     * registration order.
     *
     * @param pool Address of the pool
     * @return balancesLiveScaled18 Token balances after paying yield fees, applying decimal scaling and rates
     */
    function getCurrentLiveBalances(address pool) external view returns (uint256[] memory balancesLiveScaled18);

    /**
     * @notice Gets the configuration parameters of a pool.
     * @dev The `PoolConfig` contains liquidity management and other state flags, fee percentages, the pause window.
     * @param pool Address of the pool
     * @return poolConfig The pool configuration as a `PoolConfig` struct
     */
    function getPoolConfig(address pool) external view returns (PoolConfig memory poolConfig);

    /**
     * @notice Gets the hooks configuration parameters of a pool.
     * @dev The `HooksConfig` contains flags indicating which pool hooks are implemented.
     * @param pool Address of the pool
     * @return hooksConfig The hooks configuration as a `HooksConfig` struct
     */
    function getHooksConfig(address pool) external view returns (HooksConfig memory hooksConfig);

    /**
     * @notice The current rate of a pool token (BPT) = invariant / totalSupply.
     * @param pool Address of the pool
     * @return rate BPT rate
     */
    function getBptRate(address pool) external view returns (uint256 rate);

    /*******************************************************************************
                                 Balancer Pool Tokens
    *******************************************************************************/

    /**
     * @notice Gets the total supply of a given ERC20 token.
     * @param token The token address
     * @return tokenTotalSupply Total supply of the token
     */
    function totalSupply(address token) external view returns (uint256 tokenTotalSupply);

    /**
     * @notice Gets the balance of an account for a given ERC20 token.
     * @param token Address of the token
     * @param account Address of the account
     * @return tokenBalance Token balance of the account
     */
    function balanceOf(address token, address account) external view returns (uint256 tokenBalance);

    /**
     * @notice Gets the allowance of a spender for a given ERC20 token and owner.
     * @param token Address of the token
     * @param owner Address of the owner
     * @param spender Address of the spender
     * @return tokenAllowance Amount of tokens the spender is allowed to spend
     */
    function allowance(address token, address owner, address spender) external view returns (uint256 tokenAllowance);

    /**
     * @notice Approves a spender to spend pool tokens on behalf of sender.
     * @dev Notice that the pool token address is not included in the params. This function is exclusively called by
     * the pool contract, so msg.sender is used as the token address.
     *
     * @param owner Address of the owner
     * @param spender Address of the spender
     * @param amount Amount of tokens to approve
     * @return success True if successful, false otherwise
     */
    function approve(address owner, address spender, uint256 amount) external returns (bool success);

    /*******************************************************************************
                                     Pool Pausing
    *******************************************************************************/

    /**
     * @notice Indicates whether a pool is paused.
     * @dev If a pool is paused, all non-Recovery Mode state-changing operations will revert.
     * @param pool The pool to be checked
     * @return poolPaused True if the pool is paused
     */
    function isPoolPaused(address pool) external view returns (bool poolPaused);

    /**
     * @notice Returns the paused status, and end times of the Pool's pause window and buffer period.
     * @dev Note that even when set to a paused state, the pool will automatically unpause at the end of
     * the buffer period. Balancer timestamps are 32 bits.
     *
     * @param pool The pool whose data is requested
     * @return poolPaused True if the Pool is paused
     * @return poolPauseWindowEndTime The timestamp of the end of the Pool's pause window
     * @return poolBufferPeriodEndTime The timestamp after which the Pool unpauses itself (if paused)
     * @return pauseManager The pause manager, or the zero address
     */
    function getPoolPausedState(
        address pool
    )
        external
        view
        returns (bool poolPaused, uint32 poolPauseWindowEndTime, uint32 poolBufferPeriodEndTime, address pauseManager);

    /*******************************************************************************
                                   ERC4626 Buffers
    *******************************************************************************/

    /**
     * @notice Checks if the wrapped token has an initialized buffer in the Vault.
     * @dev An initialized buffer should have an asset registered in the Vault.
     * @param wrappedToken Address of the wrapped token that implements IERC4626
     * @return isBufferInitialized True if the ERC4626 buffer is initialized
     */
    function isERC4626BufferInitialized(IERC4626 wrappedToken) external view returns (bool isBufferInitialized);

    /**
     * @notice Gets the registered asset for a given buffer.
     * @dev To avoid malicious wrappers (e.g., that might potentially change their asset after deployment), routers
     * should never call `wrapper.asset()` directly, at least without checking it against the asset registered with
     * the Vault on initialization.
     *
     * @param wrappedToken The wrapped token specifying the buffer
     * @return asset The underlying asset of the wrapped token
     */
    function getERC4626BufferAsset(IERC4626 wrappedToken) external view returns (address asset);

    /*******************************************************************************
                                          Fees
    *******************************************************************************/

    /**
     * @notice Returns the accumulated swap fees (including aggregate fees) in `token` collected by the pool.
     * @param pool The address of the pool for which aggregate fees have been collected
     * @param token The address of the token in which fees have been accumulated
     * @return swapFeeAmount The total amount of fees accumulated in the specified token
     */
    function getAggregateSwapFeeAmount(address pool, IERC20 token) external view returns (uint256 swapFeeAmount);

    /**
     * @notice Returns the accumulated yield fees (including aggregate fees) in `token` collected by the pool.
     * @param pool The address of the pool for which aggregate fees have been collected
     * @param token The address of the token in which fees have been accumulated
     * @return yieldFeeAmount The total amount of fees accumulated in the specified token
     */
    function getAggregateYieldFeeAmount(address pool, IERC20 token) external view returns (uint256 yieldFeeAmount);

    /**
     * @notice Fetches the static swap fee percentage for a given pool.
     * @param pool The address of the pool whose static swap fee percentage is being queried
     * @return swapFeePercentage The current static swap fee percentage for the specified pool
     */
    function getStaticSwapFeePercentage(address pool) external view returns (uint256 swapFeePercentage);

    /**
     * @notice Fetches the role accounts for a given pool (pause manager, swap manager, pool creator)
     * @param pool The address of the pool whose roles are being queried
     * @return roleAccounts A struct containing the role accounts for the pool (or 0 if unassigned)
     */
    function getPoolRoleAccounts(address pool) external view returns (PoolRoleAccounts memory roleAccounts);

    /**
     * @notice Query the current dynamic swap fee percentage of a pool, given a set of swap parameters.
     * @dev Reverts if the hook doesn't return the success flag set to `true`.
     * @param pool The pool
     * @param swapParams The swap parameters used to compute the fee
     * @return dynamicSwapFeePercentage The dynamic swap fee percentage
     */
    function computeDynamicSwapFeePercentage(
        address pool,
        PoolSwapParams memory swapParams
    ) external view returns (uint256 dynamicSwapFeePercentage);

    /**
     * @notice Returns the Protocol Fee Controller address.
     * @return protocolFeeController Address of the ProtocolFeeController
     */
    function getProtocolFeeController() external view returns (IProtocolFeeController protocolFeeController);

    /*******************************************************************************
                                     Recovery Mode
    *******************************************************************************/

    /**
     * @notice Checks whether a pool is in Recovery Mode.
     * @dev Recovery Mode enables a safe proportional withdrawal path, with no external calls.
     * @param pool Address of the pool to check
     * @return inRecoveryMode True if the pool is in Recovery Mode, false otherwise
     */
    function isPoolInRecoveryMode(address pool) external view returns (bool inRecoveryMode);

    /**
     * @notice Remove liquidity from a pool specifying exact pool tokens in, with proportional token amounts out.
     * The request is implemented by the Vault without any interaction with the pool, ensuring that
     * it works the same for all pools, and cannot be disabled by a new pool type.
     *
     * @param pool Address of the pool
     * @param from Address of user to burn pool tokens from
     * @param exactBptAmountIn Input pool token amount
     * @param minAmountsOut Minimum amounts of tokens to be received, sorted in token registration order
     * @return amountsOut Actual calculated amounts of output tokens, sorted in token registration order
     */
    function removeLiquidityRecovery(
        address pool,
        address from,
        uint256 exactBptAmountIn,
        uint256[] memory minAmountsOut
    ) external returns (uint256[] memory amountsOut);

    /*******************************************************************************
                                    Queries
    *******************************************************************************/

    /**
     * @notice Performs a callback on msg.sender with arguments provided in `data`.
     * @dev Used to query a set of operations on the Vault. Only off-chain eth_call are allowed,
     * anything else will revert.
     *
     * Allows querying any operation on the Vault that has the `onlyWhenUnlocked` modifier.
     *
     * Allows the external calling of a function via the Vault contract to
     * access Vault's functions guarded by `onlyWhenUnlocked`.
     * `transient` modifier ensuring balances changes within the Vault are settled.
     *
     * @param data Contains function signature and args to be passed to the msg.sender
     * @return result Resulting data from the call
     */
    function quote(bytes calldata data) external returns (bytes memory result);

    /**
     * @notice Performs a callback on msg.sender with arguments provided in `data`.
     * @dev Used to query a set of operations on the Vault. Only off-chain eth_call are allowed,
     * anything else will revert.
     *
     * Allows querying any operation on the Vault that has the `onlyWhenUnlocked` modifier.
     *
     * Allows the external calling of a function via the Vault contract to
     * access Vault's functions guarded by `onlyWhenUnlocked`.
     * `transient` modifier ensuring balances changes within the Vault are settled.
     *
     * This call always reverts, returning the result in the revert reason.
     *
     * @param data Contains function signature and args to be passed to the msg.sender
     */
    function quoteAndRevert(bytes calldata data) external;

    /**
     * @notice Returns true if queries are disabled on the Vault.
     * @dev If true, queries might either be disabled temporarily or permanently.
     * @return queryDisabled True if query functionality is reversibly disabled
     */
    function isQueryDisabled() external view returns (bool queryDisabled);

    /**
     * @notice Returns true if queries are disabled permanently; false if they are enabled.
     * @dev This is a one-way switch. Once queries are disabled permanently, they can never be re-enabled.
     * @return queryDisabledPermanently True if query functionality is permanently disabled
     */
    function isQueryDisabledPermanently() external view returns (bool queryDisabledPermanently);

    /**
     * @notice Pools can use this event to emit event data from the Vault.
     * @param eventKey Event key
     * @param eventData Encoded event data
     */
    function emitAuxiliaryEvent(bytes32 eventKey, bytes calldata eventData) external;

    /*******************************************************************************
                                Authentication
    *******************************************************************************/

    /**
     * @notice Returns the Authorizer address.
     * @dev The authorizer holds the permissions granted by governance. It is set on Vault deployment,
     * and can be changed through a permissioned call.
     *
     * @return authorizer Address of the authorizer contract
     */
    function getAuthorizer() external view returns (IAuthorizer authorizer);
}

// SPDX-License-Identifier: GPL-3.0-or-later

pragma solidity ^0.8.24;

import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol";

import "./VaultTypes.sol";

/**
 * @notice Interface for functions defined on the main Vault contract.
 * @dev These are generally "critical path" functions (swap, add/remove liquidity) that are in the main contract
 * for technical or performance reasons.
 */
interface IVaultMain {
    /*******************************************************************************
                              Transient Accounting
    *******************************************************************************/

    /**
     * @notice Creates a context for a sequence of operations (i.e., "unlocks" the Vault).
     * @dev Performs a callback on msg.sender with arguments provided in `data`. The Callback is `transient`,
     * meaning all balances for the caller have to be settled at the end.
     *
     * @param data Contains function signature and args to be passed to the msg.sender
     * @return result Resulting data from the call
     */
    function unlock(bytes calldata data) external returns (bytes memory result);

    /**
     * @notice Settles deltas for a token; must be successful for the current lock to be released.
     * @dev Protects the caller against leftover dust in the Vault for the token being settled. The caller
     * should know in advance how many tokens were paid to the Vault, so it can provide it as a hint to discard any
     * excess in the Vault balance.
     *
     * If the given hint is equal to or higher than the difference in reserves, the difference in reserves is given as
     * credit to the caller. If it's higher, the caller sent fewer tokens than expected, so settlement would fail.
     *
     * If the given hint is lower than the difference in reserves, the hint is given as credit to the caller.
     * In this case, the excess would be absorbed by the Vault (and reflected correctly in the reserves), but would
     * not affect settlement.
     *
     * The credit supplied by the Vault can be calculated as `min(reserveDifference, amountHint)`, where the reserve
     * difference equals current balance of the token minus existing reserves of the token when the function is called.
     *
     * @param token Address of the token
     * @param amountHint Amount paid as reported by the caller
     * @return credit Credit received in return of the payment
     */
    function settle(IERC20 token, uint256 amountHint) external returns (uint256 credit);

    /**
     * @notice Sends tokens to a recipient.
     * @dev There is no inverse operation for this function. Transfer funds to the Vault and call `settle` to cancel
     * debts.
     *
     * @param token Address of the token
     * @param to Recipient address
     * @param amount Amount of tokens to send
     */
    function sendTo(IERC20 token, address to, uint256 amount) external;

    /***************************************************************************
                                       Swaps
    ***************************************************************************/

    /**
     * @notice Swaps tokens based on provided parameters.
     * @dev All parameters are given in raw token decimal encoding.
     * @param vaultSwapParams Parameters for the swap (see above for struct definition)
     * @return amountCalculatedRaw Calculated swap amount
     * @return amountInRaw Amount of input tokens for the swap
     * @return amountOutRaw Amount of output tokens from the swap
     */
    function swap(
        VaultSwapParams memory vaultSwapParams
    ) external returns (uint256 amountCalculatedRaw, uint256 amountInRaw, uint256 amountOutRaw);

    /***************************************************************************
                                   Add Liquidity
    ***************************************************************************/

    /**
     * @notice Adds liquidity to a pool.
     * @dev Caution should be exercised when adding liquidity because the Vault has the capability
     * to transfer tokens from any user, given that it holds all allowances.
     *
     * @param params Parameters for the add liquidity (see above for struct definition)
     * @return amountsIn Actual amounts of input tokens
     * @return bptAmountOut Output pool token amount
     * @return returnData Arbitrary (optional) data with an encoded response from the pool
     */
    function addLiquidity(
        AddLiquidityParams memory params
    ) external returns (uint256[] memory amountsIn, uint256 bptAmountOut, bytes memory returnData);

    /***************************************************************************
                                 Remove Liquidity
    ***************************************************************************/

    /**
     * @notice Removes liquidity from a pool.
     * @dev Trusted routers can burn pool tokens belonging to any user and require no prior approval from the user.
     * Untrusted routers require prior approval from the user. This is the only function allowed to call
     * _queryModeBalanceIncrease (and only in a query context).
     *
     * @param params Parameters for the remove liquidity (see above for struct definition)
     * @return bptAmountIn Actual amount of BPT burned
     * @return amountsOut Actual amounts of output tokens
     * @return returnData Arbitrary (optional) data with an encoded response from the pool
     */
    function removeLiquidity(
        RemoveLiquidityParams memory params
    ) external returns (uint256 bptAmountIn, uint256[] memory amountsOut, bytes memory returnData);

    /*******************************************************************************
                                    Pool Information
    *******************************************************************************/

    /**
     * @notice Gets the index of a token in a given pool.
     * @dev Reverts if the pool is not registered, or if the token does not belong to the pool.
     * @param pool Address of the pool
     * @param token Address of the token
     * @return tokenCount Number of tokens in the pool
     * @return index Index corresponding to the given token in the pool's token list
     */
    function getPoolTokenCountAndIndexOfToken(
        address pool,
        IERC20 token
    ) external view returns (uint256 tokenCount, uint256 index);

    /*******************************************************************************
                                 Balancer Pool Tokens
    *******************************************************************************/

    /**
     * @notice Transfers pool token from owner to a recipient.
     * @dev Notice that the pool token address is not included in the params. This function is exclusively called by
     * the pool contract, so msg.sender is used as the token address.
     *
     * @param owner Address of the owner
     * @param to Address of the recipient
     * @param amount Amount of tokens to transfer
     * @return success True if successful, false otherwise
     */
    function transfer(address owner, address to, uint256 amount) external returns (bool);

    /**
     * @notice Transfers pool token from a sender to a recipient using an allowance.
     * @dev Notice that the pool token address is not included in the params. This function is exclusively called by
     * the pool contract, so msg.sender is used as the token address.
     *
     * @param spender Address allowed to perform the transfer
     * @param from Address of the sender
     * @param to Address of the recipient
     * @param amount Amount of tokens to transfer
     * @return success True if successful, false otherwise
     */
    function transferFrom(address spender, address from, address to, uint256 amount) external returns (bool success);

    /*******************************************************************************
                                  ERC4626 Buffers
    *******************************************************************************/

    /**
     * @notice Wraps/unwraps tokens based on the parameters provided.
     * @dev All parameters are given in raw token decimal encoding. It requires the buffer to be initialized,
     * and uses the internal wrapped token buffer when it has enough liquidity to avoid external calls.
     *
     * @param params Parameters for the wrap/unwrap operation (see struct definition)
     * @return amountCalculatedRaw Calculated swap amount
     * @return amountInRaw Amount of input tokens for the swap
     * @return amountOutRaw Amount of output tokens from the swap
     */
    function erc4626BufferWrapOrUnwrap(
        BufferWrapOrUnwrapParams memory params
    ) external returns (uint256 amountCalculatedRaw, uint256 amountInRaw, uint256 amountOutRaw);

    /*******************************************************************************
                                     Miscellaneous
    *******************************************************************************/

    /**
     * @notice Returns the VaultExtension contract address.
     * @dev Function is in the main Vault contract. The VaultExtension handles less critical or frequently used
     * functions, since delegate calls through the Vault are more expensive than direct calls.
     *
     * @return vaultExtension Address of the VaultExtension
     */
    function getVaultExtension() external view returns (address vaultExtension);
}

// SPDX-License-Identifier: GPL-3.0-or-later

pragma solidity ^0.8.24;

import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import { IERC4626 } from "@openzeppelin/contracts/interfaces/IERC4626.sol";

import { IRateProvider } from "../solidity-utils/helpers/IRateProvider.sol";

/**
 * @notice Represents a pool's liquidity management configuration.
 * @param disableUnbalancedLiquidity If set, liquidity can only be added or removed proportionally
 * @param enableAddLiquidityCustom If set, the pool has implemented `onAddLiquidityCustom`
 * @param enableRemoveLiquidityCustom If set, the pool has implemented `onRemoveLiquidityCustom`
 * @param enableDonation If set, the pool will not revert if liquidity is added with AddLiquidityKind.DONATION
 */
struct LiquidityManagement {
    bool disableUnbalancedLiquidity;
    bool enableAddLiquidityCustom;
    bool enableRemoveLiquidityCustom;
    bool enableDonation;
}

// @notice Custom type to store the entire configuration of the pool.
type PoolConfigBits is bytes32;

/**
 * @notice Represents a pool's configuration (hooks configuration are separated in another struct).
 * @param liquidityManagement Flags related to adding/removing liquidity
 * @param staticSwapFeePercentage The pool's native swap fee
 * @param aggregateSwapFeePercentage The total swap fee charged, including protocol and pool creator components
 * @param aggregateYieldFeePercentage The total swap fee charged, including protocol and pool creator components
 * @param tokenDecimalDiffs Compressed storage of the token decimals of each pool token
 * @param pauseWindowEndTime Timestamp after which the pool cannot be paused
 * @param isPoolRegistered If true, the pool has been registered with the Vault
 * @param isPoolInitialized If true, the pool has been initialized with liquidity, and is available for trading
 * @param isPoolPaused If true, the pool has been paused (by governance or the pauseManager)
 * @param isPoolInRecoveryMode If true, the pool has been placed in recovery mode, enabling recovery mode withdrawals
 */
struct PoolConfig {
    LiquidityManagement liquidityManagement;
    uint256 staticSwapFeePercentage;
    uint256 aggregateSwapFeePercentage;
    uint256 aggregateYieldFeePercentage;
    uint40 tokenDecimalDiffs;
    uint32 pauseWindowEndTime;
    bool isPoolRegistered;
    bool isPoolInitialized;
    bool isPoolPaused;
    bool isPoolInRecoveryMode;
}

/**
 * @notice The flag portion of the `HooksConfig`.
 * @dev `enableHookAdjustedAmounts` must be true for all contracts that modify the `amountCalculated`
 * in after hooks. Otherwise, the Vault will ignore any "hookAdjusted" amounts. Setting any "shouldCall"
 * flags to true will cause the Vault to call the corresponding hook during operations.
 */
struct HookFlags {
    bool enableHookAdjustedAmounts;
    bool shouldCallBeforeInitialize;
    bool shouldCallAfterInitialize;
    bool shouldCallComputeDynamicSwapFee;
    bool shouldCallBeforeSwap;
    bool shouldCallAfterSwap;
    bool shouldCallBeforeAddLiquidity;
    bool shouldCallAfterAddLiquidity;
    bool shouldCallBeforeRemoveLiquidity;
    bool shouldCallAfterRemoveLiquidity;
}

/// @notice Represents a hook contract configuration for a pool (HookFlags + hooksContract address).
struct HooksConfig {
    bool enableHookAdjustedAmounts;
    bool shouldCallBeforeInitialize;
    bool shouldCallAfterInitialize;
    bool shouldCallComputeDynamicSwapFee;
    bool shouldCallBeforeSwap;
    bool shouldCallAfterSwap;
    bool shouldCallBeforeAddLiquidity;
    bool shouldCallAfterAddLiquidity;
    bool shouldCallBeforeRemoveLiquidity;
    bool shouldCallAfterRemoveLiquidity;
    address hooksContract;
}

/**
 * @notice Represents temporary state used during a swap operation.
 * @param indexIn The zero-based index of tokenIn
 * @param indexOut The zero-based index of tokenOut
 * @param amountGivenScaled18 The amountGiven (i.e., tokenIn for ExactIn), adjusted for token decimals
 * @param swapFeePercentage The swap fee to be applied (might be static or dynamic)
 */
struct SwapState {
    uint256 indexIn;
    uint256 indexOut;
    uint256 amountGivenScaled18;
    uint256 swapFeePercentage;
}

/**
 * @notice Represents the Vault's configuration.
 * @param isQueryDisabled If set to true, disables query functionality of the Vault. Can be modified by governance
 * @param isVaultPaused If set to true, swaps and add/remove liquidity operations are halted
 * @param areBuffersPaused If set to true, the Vault wrap/unwrap primitives associated with buffers will be disabled
 */
struct VaultState {
    bool isQueryDisabled;
    bool isVaultPaused;
    bool areBuffersPaused;
}

/**
 * @notice Represents the accounts holding certain roles for a given pool. This is passed in on pool registration.
 * @param pauseManager Account empowered to pause/unpause the pool (note that governance can always pause a pool)
 * @param swapFeeManager Account empowered to set static swap fees for a pool (or 0 to delegate to governance)
 * @param poolCreator Account empowered to set the pool creator fee (or 0 if all fees go to the protocol and LPs)
 */
struct PoolRoleAccounts {
    address pauseManager;
    address swapFeeManager;
    address poolCreator;
}

/*******************************************************************************
                                   Tokens
*******************************************************************************/

// Note that the following tokens are unsupported by the Vault. This list is not meant to be exhaustive, but covers
// many common types of tokens that will not work with the Vault architecture. (See https://github.com/d-xo/weird-erc20
// for examples of token features that are problematic for many protocols.)
//
// * Rebasing tokens (e.g., aDAI). The Vault keeps track of token balances in its internal accounting; any token whose
//   balance changes asynchronously (i.e., outside a swap or liquidity operation), would get out-of-sync with this
//   internal accounting. This category would also include "airdrop" tokens, whose balances can change unexpectedly.
//
// * Double entrypoint (e.g., old Synthetix tokens, now fixed). These could likewise bypass internal accounting by
//   registering the token under one address, then accessing it through another. This is especially troublesome
//   in v3, with the introduction of ERC4626 buffers.
//
// * Fee on transfer (e.g., PAXG). The Vault issues credits and debits according to given and calculated token amounts,
//   and settlement assumes that the send/receive transfer functions transfer exactly the given number of tokens.
//   If this is not the case, transactions will not settle. Unlike with the other types, which are fundamentally
//   incompatible, it would be possible to design a Router to handle this - but we didn't try it. In any case, it's
//   not supported in the current Routers.
//
// * Tokens with more than 18 decimals (e.g., YAM-V2). The Vault handles token scaling: i.e., handling I/O for
//   amounts in native token decimals, but doing calculations with full 18-decimal precision. This requires reading
//   and storing the decimals for each token. Since virtually all tokens are 18 or fewer decimals, and we have limited
//   storage space, 18 was a reasonable maximum. Unlike the other types, this is enforceable by the Vault. Attempting
//   to register such tokens will revert with `InvalidTokenDecimals`. Of course, we must also be able to read the token
//   decimals, so the Vault only supports tokens that implement `IERC20Metadata.decimals`, and return a value less than
//   or equal to 18.
//
//  * Token decimals are checked and stored only once, on registration. Valid tokens store their decimals as immutable
//    variables or constants. Malicious tokens that don't respect this basic property would not work anywhere in DeFi.
//
// These types of tokens are supported but discouraged, as they don't tend to play well with AMMs generally.
//
// * Very low-decimal tokens (e.g., GUSD). The Vault has been extensively tested with 6-decimal tokens (e.g., USDC),
//   but going much below that may lead to unanticipated effects due to precision loss, especially with smaller trade
//   values.
//
// * Revert on zero value approval/transfer. The Vault has been tested against these, but peripheral contracts, such
//   as hooks, might not have been designed with this in mind.
//
// * Other types from "weird-erc20," such as upgradeable, pausable, or tokens with blocklists. We have seen cases
//   where a token upgrade fails, "bricking" the token - and many operations on pools containing that token. Any
//   sort of "permissioned" token that can make transfers fail can cause operations on pools containing them to
//   revert. Even Recovery Mode cannot help then, as it does a proportional withdrawal of all tokens. If one of
//   them is bricked, the whole operation will revert. Since v3 does not have "internal balances" like v2, there
//   is no recourse.
//
//   Of course, many tokens in common use have some of these "features" (especially centralized stable coins), so
//   we have to support them anyway. Working with common centralized tokens is a risk common to all of DeFi.

/**
 * @notice Token types supported by the Vault.
 * @dev In general, pools may contain any combination of these tokens.
 *
 * STANDARD tokens (e.g., BAL, WETH) have no rate provider.
 * WITH_RATE tokens (e.g., wstETH) require a rate provider. These may be tokens like wstETH, which need to be wrapped
 * because the underlying stETH token is rebasing, and such tokens are unsupported by the Vault. They may also be
 * tokens like sEUR, which track an underlying asset, but are not yield-bearing. Finally, this encompasses
 * yield-bearing ERC4626 tokens, which can be used to facilitate swaps without requiring wrapping or unwrapping
 * in most cases. The `paysYieldFees` flag can be used to indicate whether a token is yield-bearing (e.g., waDAI),
 * not yield-bearing (e.g., sEUR), or yield-bearing but exempt from fees (e.g., in certain nested pools, where
 * yield fees are charged elsewhere).
 *
 * NB: STANDARD must always be the first enum element, so that newly initialized data structures default to Standard.
 */
enum TokenType {
    STANDARD,
    WITH_RATE
}

/**
 * @notice Encapsulate the data required for the Vault to support a token of the given type.
 * @dev For STANDARD tokens, the rate provider address must be 0, and paysYieldFees must be false. All WITH_RATE tokens
 * need a rate provider, and may or may not be yield-bearing.
 *
 * At registration time, it is useful to include the token address along with the token parameters in the structure
 * passed to `registerPool`, as the alternative would be parallel arrays, which would be error prone and require
 * validation checks. `TokenConfig` is only used for registration, and is never put into storage (see `TokenInfo`).
 *
 * @param token The token address
 * @param tokenType The token type (see the enum for supported types)
 * @param rateProvider The rate provider for a token (see further documentation above)
 * @param paysYieldFees Flag indicating whether yield fees should be charged on this token
 */
struct TokenConfig {
    IERC20 token;
    TokenType tokenType;
    IRateProvider rateProvider;
    bool paysYieldFees;
}

/**
 * @notice This data structure is stored in `_poolTokenInfo`, a nested mapping from pool -> (token -> TokenInfo).
 * @dev Since the token is already the key of the nested mapping, it would be redundant (and an extra SLOAD) to store
 * it again in the struct. When we construct PoolData, the tokens are separated into their own array.
 *
 * @param tokenType The token type (see the enum for supported types)
 * @param rateProvider The rate provider for a token (see further documentation above)
 * @param paysYieldFees Flag indicating whether yield fees should be charged on this token
 */
struct TokenInfo {
    TokenType tokenType;
    IRateProvider rateProvider;
    bool paysYieldFees;
}

/**
 * @notice Data structure used to represent the current pool state in memory
 * @param poolConfigBits Custom type to store the entire configuration of the pool.
 * @param tokens Pool tokens, sorted in token registration order
 * @param tokenInfo Configuration data for each token, sorted in token registration order
 * @param balancesRaw Token balances in native decimals
 * @param balancesLiveScaled18 Token balances after paying yield fees, applying decimal scaling and rates
 * @param tokenRates 18-decimal FP values for rate tokens (e.g., yield-bearing), or FP(1) for standard tokens
 * @param decimalScalingFactors Conversion factor used to adjust for token decimals for uniform precision in
 * calculations. It is 1e18 (FP 1) for 18-decimal tokens
 */
struct PoolData {
    PoolConfigBits poolConfigBits;
    IERC20[] tokens;
    TokenInfo[] tokenInfo;
    uint256[] balancesRaw;
    uint256[] balancesLiveScaled18;
    uint256[] tokenRates;
    uint256[] decimalScalingFactors;
}

enum Rounding {
    ROUND_UP,
    ROUND_DOWN
}

/*******************************************************************************
                                    Swaps
*******************************************************************************/

enum SwapKind {
    EXACT_IN,
    EXACT_OUT
}

// There are two "SwapParams" structs defined below. `VaultSwapParams` corresponds to the external swap API defined
// in the Router contracts, which uses explicit token addresses, the amount given and limit on the calculated amount
// expressed in native token decimals, and optional user data passed in from the caller.
//
// `PoolSwapParams` passes some of this information through (kind, userData), but "translates" the parameters to fit
// the internal swap API used by `IBasePool`. It scales amounts to full 18-decimal precision, adds the token balances,
// converts the raw token addresses to indices, and adds the address of the Router originating the request. It does
// not need the limit, since this is checked at the Router level.

/**
 * @notice Data passed into primary Vault `swap` operations.
 * @param kind Type of swap (Exact In or Exact Out)
 * @param pool The pool with the tokens being swapped
 * @param tokenIn The token entering the Vault (balance increases)
 * @param tokenOut The token leaving the Vault (balance decreases)
 * @param amountGivenRaw Amount specified for tokenIn or tokenOut (depending on the type of swap)
 * @param limitRaw Minimum or maximum value of the calculated amount (depending on the type of swap)
 * @param userData Additional (optional) user data
 */
struct VaultSwapParams {
    SwapKind kind;
    address pool;
    IERC20 tokenIn;
    IERC20 tokenOut;
    uint256 amountGivenRaw;
    uint256 limitRaw;
    bytes userData;
}

/**
 * @notice Data for a swap operation, used by contracts implementing `IBasePool`.
 * @param kind Type of swap (exact in or exact out)
 * @param amountGivenScaled18 Amount given based on kind of the swap (e.g., tokenIn for EXACT_IN)
 * @param balancesScaled18 Current pool balances
 * @param indexIn Index of tokenIn
 * @param indexOut Index of tokenOut
 * @param router The address (usually a router contract) that initiated a swap operation on the Vault
 * @param userData Additional (optional) data required for the swap
 */
struct PoolSwapParams {
    SwapKind kind;
    uint256 amountGivenScaled18;
    uint256[] balancesScaled18;
    uint256 indexIn;
    uint256 indexOut;
    address router;
    bytes userData;
}

/**
 * @notice Data for the hook after a swap operation.
 * @param kind Type of swap (exact in or exact out)
 * @param tokenIn Token to be swapped from
 * @param tokenOut Token to be swapped to
 * @param amountInScaled18 Amount of tokenIn (entering the Vault)
 * @param amountOutScaled18 Amount of tokenOut (leaving the Vault)
 * @param tokenInBalanceScaled18 Updated (after swap) balance of tokenIn
 * @param tokenOutBalanceScaled18 Updated (after swap) balance of tokenOut
 * @param amountCalculatedScaled18 Token amount calculated by the swap
 * @param amountCalculatedRaw Token amount calculated by the swap
 * @param router The address (usually a router contract) that initiated a swap operation on the Vault
 * @param pool Pool address
 * @param userData Additional (optional) data required for the swap
 */
struct AfterSwapParams {
    SwapKind kind;
    IERC20 tokenIn;
    IERC20 tokenOut;
    uint256 amountInScaled18;
    uint256 amountOutScaled18;
    uint256 tokenInBalanceScaled18;
    uint256 tokenOutBalanceScaled18;
    uint256 amountCalculatedScaled18;
    uint256 amountCalculatedRaw;
    address router;
    address pool;
    bytes userData;
}

/*******************************************************************************
                                Add liquidity
*******************************************************************************/

enum AddLiquidityKind {
    PROPORTIONAL,
    UNBALANCED,
    SINGLE_TOKEN_EXACT_OUT,
    DONATION,
    CUSTOM
}

/**
 * @notice Data for an add liquidity operation.
 * @param pool Address of the pool
 * @param to Address of user to mint to
 * @param maxAmountsIn Maximum amounts of input tokens
 * @param minBptAmountOut Minimum amount of output pool tokens
 * @param kind Add liquidity kind
 * @param userData Optional user data
 */
struct AddLiquidityParams {
    address pool;
    address to;
    uint256[] maxAmountsIn;
    uint256 minBptAmountOut;
    AddLiquidityKind kind;
    bytes userData;
}

/*******************************************************************************
                                Remove liquidity
*******************************************************************************/

enum RemoveLiquidityKind {
    PROPORTIONAL,
    SINGLE_TOKEN_EXACT_IN,
    SINGLE_TOKEN_EXACT_OUT,
    CUSTOM
}

/**
 * @notice Data for an remove liquidity operation.
 * @param pool Address of the pool
 * @param from Address of user to burn from
 * @param maxBptAmountIn Maximum amount of input pool tokens
 * @param minAmountsOut Minimum amounts of output tokens
 * @param kind Remove liquidity kind
 * @param userData Optional user data
 */
struct RemoveLiquidityParams {
    address pool;
    address from;
    uint256 maxBptAmountIn;
    uint256[] minAmountsOut;
    RemoveLiquidityKind kind;
    bytes userData;
}

/*******************************************************************************
                                Remove liquidity
*******************************************************************************/

enum WrappingDirection {
    WRAP,
    UNWRAP
}

/**
 * @notice Data for a wrap/unwrap operation.
 * @param kind Type of swap (Exact In or Exact Out)
 * @param direction Direction of the wrapping operation (Wrap or Unwrap)
 * @param wrappedToken Wrapped token, compatible with interface ERC4626
 * @param amountGivenRaw Amount specified for tokenIn or tokenOut (depends on the type of swap and wrapping direction)
 * @param limitRaw Minimum or maximum amount specified for the other token (depends on the type of swap and wrapping
 * direction)
 */
struct BufferWrapOrUnwrapParams {
    SwapKind kind;
    WrappingDirection direction;
    IERC4626 wrappedToken;
    uint256 amountGivenRaw;
    uint256 limitRaw;
}

// Protocol Fees are 24-bit values. We transform them by multiplying by 1e11, so that they can be set to any value
// between 0% and 100% (step 0.00001%). Protocol and pool creator fees are set in the `ProtocolFeeController`, and
// ensure both constituent and aggregate fees do not exceed this precision.
uint256 constant FEE_BITLENGTH = 24;
uint256 constant FEE_SCALING_FACTOR = 1e11;
// Used to ensure the safety of fee-related math (e.g., pools or hooks don't set it greater than 100%).
// This value should work for practical purposes and is well within the max precision requirements.
uint256 constant MAX_FEE_PERCENTAGE = 99.9999e16; // 99.9999%

// SPDX-License-Identifier: GPL-3.0-or-later

pragma solidity ^0.8.24;

import { IVault } from "@balancer-labs/v3-interfaces/contracts/vault/IVault.sol";

import { Authentication } from "@balancer-labs/v3-solidity-utils/contracts/helpers/Authentication.sol";

/// @dev Base contract for performing access control on external functions within pools.
abstract contract BasePoolAuthentication is Authentication {
    IVault private immutable _vault;

    /**
     * @dev Pools should use the pool factory as the disambiguator passed into the base Authentication contract.
     * Otherwise, permissions would conflict if different pools reused function names.
     */
    constructor(IVault vault, address factory) Authentication(bytes32(uint256(uint160(factory)))) {
        _vault = vault;
    }

    // Access control is delegated to the Authorizer in the `_canPerform` functions.

    function _canPerform(bytes32 actionId, address user) internal view override returns (bool) {
        return _vault.getAuthorizer().canPerform(actionId, user, address(this));
    }

    function _canPerform(bytes32 actionId, address account, address where) internal view returns (bool) {
        return _vault.getAuthorizer().canPerform(actionId, account, where);
    }
}

// SPDX-License-Identifier: GPL-3.0-or-later

pragma solidity ^0.8.24;

import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol";

import { TokenInfo, PoolConfig } from "@balancer-labs/v3-interfaces/contracts/vault/VaultTypes.sol";
import { IPoolInfo } from "@balancer-labs/v3-interfaces/contracts/pool-utils/IPoolInfo.sol";
import { IVault } from "@balancer-labs/v3-interfaces/contracts/vault/IVault.sol";

/**
 * @notice Standard implementation of the `IPoolInfo` interface.
 * @dev Balancer standard pools inherit from this optional interface to provide a standard off-chain interface for
 * commonly requested data.
 */
contract PoolInfo is IPoolInfo {
    IVault private immutable _vault;

    constructor(IVault vault) {
        _vault = vault;
    }

    /// @inheritdoc IPoolInfo
    function getTokens() external view returns (IERC20[] memory tokens) {
        return _vault.getPoolTokens(address(this));
    }

    /// @inheritdoc IPoolInfo
    function getTokenInfo()
        external
        view
        returns (
            IERC20[] memory tokens,
            TokenInfo[] memory tokenInfo,
            uint256[] memory balancesRaw,
            uint256[] memory lastBalancesLiveScaled18
        )
    {
        return _vault.getPoolTokenInfo(address(this));
    }

    /// @inheritdoc IPoolInfo
    function getCurrentLiveBalances() external view returns (uint256[] memory balancesLiveScaled18) {
        return _vault.getCurrentLiveBalances(address(this));
    }

    /// @inheritdoc IPoolInfo
    function getStaticSwapFeePercentage() external view returns (uint256) {
        return _vault.getStaticSwapFeePercentage((address(this)));
    }

    /// @inheritdoc IPoolInfo
    function getAggregateFeePercentages()
        external
        view
        returns (uint256 aggregateSwapFeePercentage, uint256 aggregateYieldFeePercentage)
    {
        PoolConfig memory poolConfig = _vault.getPoolConfig(address(this));

        aggregateSwapFeePercentage = poolConfig.aggregateSwapFeePercentage;
        aggregateYieldFeePercentage = poolConfig.aggregateYieldFeePercentage;
    }
}

// SPDX-License-Identifier: GPL-3.0-or-later

pragma solidity ^0.8.24;

import { IAuthentication } from "@balancer-labs/v3-interfaces/contracts/solidity-utils/helpers/IAuthentication.sol";

/**
 * @notice Building block for performing access control on external functions.
 * @dev This contract is used via the `authenticate` modifier (or the `_authenticateCaller` function), which can be
 * applied to external functions to make them only callable by authorized accounts.
 *
 * Derived contracts must implement the `_canPerform` function, which holds the actual access control logic.
 */
abstract contract Authentication is IAuthentication {
    bytes32 private immutable _actionIdDisambiguator;

    /**
     * @dev The main purpose of the `actionIdDisambiguator` is to prevent accidental function selector collisions in
     * multi-contract systems.
     *
     * There are two main uses for it:
     *  - if the contract is a singleton, any unique identifier can be used to make the associated action identifiers
     *    unique. The contract's own address is a good option.
     *  - if the contract belongs to a family that shares action identifiers for the same functions, an identifier
     *    shared by the entire family (and no other contract) should be used instead.
     */
    constructor(bytes32 actionIdDisambiguator) {
        _actionIdDisambiguator = actionIdDisambiguator;
    }

    /// @dev Reverts unless the caller is allowed to call this function. Should only be applied to external functions.
    modifier authenticate() {
        _authenticateCaller();
        _;
    }

    /// @dev Reverts unless the caller is allowed to call the entry point function.
    function _authenticateCaller() internal view {
        bytes32 actionId = getActionId(msg.sig);

        if (!_canPerform(actionId, msg.sender)) {
            revert SenderNotAllowed();
        }
    }

    /// @inheritdoc IAuthentication
    function getActionId(bytes4 selector) public view override returns (bytes32) {
        // Each external function is dynamically assigned an action identifier as the hash of the disambiguator and the
        // function selector. Disambiguation is necessary to avoid potential collisions in the function selectors of
        // multiple contracts.
        return keccak256(abi.encodePacked(_actionIdDisambiguator, selector));
    }

    /**
     * @dev Derived contracts must implement this function to perform the actual access control logic.
     * @param actionId The action identifier associated with an external function
     * @param user The account performing the action
     * @return success True if the action is permitted
     */
    function _canPerform(bytes32 actionId, address user) internal view virtual returns (bool);
}

// SPDX-License-Identifier: GPL-3.0-or-later

pragma solidity ^0.8.24;

import { IVersion } from "@balancer-labs/v3-interfaces/contracts/solidity-utils/helpers/IVersion.sol";

/**
 * @notice Retrieves a contract's version from storage.
 * @dev The version is set at deployment time and cannot be changed. It would be immutable, but immutable strings
 * are not yet supported.
 *
 * Contracts like factories and pools should have versions. These typically take the form of JSON strings containing
 * detailed information about the deployment. For instance:
 *
 * `{name: 'ChildChainGaugeFactory', version: 2, deployment: '20230316-child-chain-gauge-factory-v2'}`
 */
contract Version is IVersion {
    string private _version;

    constructor(string memory version_) {
        _setVersion(version_);
    }

    /**
     * @notice Getter for the version.
     * @return version The stored contract version
     */
    function version() external view returns (string memory) {
        return _version;
    }

    /// @dev Internal setter that allows this contract to be used in proxies.
    function _setVersion(string memory newVersion) internal {
        _version = newVersion;
    }
}

// SPDX-License-Identifier: GPL-3.0-or-later

pragma solidity ^0.8.24;

import { LogExpMath } from "./LogExpMath.sol";

/// @notice Support 18-decimal fixed point arithmetic. All Vault calculations use this for high and uniform precision.
library FixedPoint {
    /// @notice Attempted division by zero.
    error ZeroDivision();

    // solhint-disable no-inline-assembly
    // solhint-disable private-vars-leading-underscore

    uint256 internal constant ONE = 1e18; // 18 decimal places
    uint256 internal constant TWO = 2 * ONE;
    uint256 internal constant FOUR = 4 * ONE;
    uint256 internal constant MAX_POW_RELATIVE_ERROR = 10000; // 10^(-14)

    function mulDown(uint256 a, uint256 b) internal pure returns (uint256) {
        // Multiplication overflow protection is provided by Solidity 0.8.x.
        uint256 product = a * b;

        return product / ONE;
    }

    function mulUp(uint256 a, uint256 b) internal pure returns (uint256 result) {
        // Multiplication overflow protection is provided by Solidity 0.8.x.
        uint256 product = a * b;

        // Equivalent to:
        // result = product == 0 ? 0 : ((product - 1) / FixedPoint.ONE) + 1
        assembly ("memory-safe") {
            result := mul(iszero(iszero(product)), add(div(sub(product, 1), ONE), 1))
        }
    }

    function divDown(uint256 a, uint256 b) internal pure returns (uint256) {
        // Solidity 0.8 reverts with a Panic code (0x11) if the multiplication overflows.
        uint256 aInflated = a * ONE;

        // Solidity 0.8 reverts with a "Division by Zero" Panic code (0x12) if b is zero
        return aInflated / b;
    }

    function divUp(uint256 a, uint256 b) internal pure returns (uint256 result) {
        return mulDivUp(a, ONE, b);
    }

    /// @dev Return (a * b) / c, rounding up.
    function mulDivUp(uint256 a, uint256 b, uint256 c) internal pure returns (uint256 result) {
        // This check is required because Yul's `div` doesn't revert on c==0.
        if (c == 0) {
            revert ZeroDivision();
        }

        // Multiple overflow protection is done by Solidity 0.8.x.
        uint256 product = a * b;

        // The traditional divUp formula is:
        // divUp(x, y) := (x + y - 1) / y
        // To avoid intermediate overflow in the addition, we distribute the division and get:
        // divUp(x, y) := (x - 1) / y + 1
        // Note that this requires x != 0, if x == 0 then the result is zero
        //
        // Equivalent to:
        // result = a == 0 ? 0 : (a * b - 1) / c + 1
        assembly ("memory-safe") {
            result := mul(iszero(iszero(product)), add(div(sub(product, 1), c), 1))
        }
    }

    /**
     * @dev Version of divUp when the input is raw (i.e., already "inflated"). For instance,
     * invariant * invariant (36 decimals) vs. invariant.mulDown(invariant) (18 decimal FP).
     * This can occur in calculations with many successive multiplications and divisions, and
     * we want to minimize the number of operations by avoiding unnecessary scaling by ONE.
     */
    function divUpRaw(uint256 a, uint256 b) internal pure returns (uint256 result) {
        // This check is required because Yul's `div` doesn't revert on b==0.
        if (b == 0) {
            revert ZeroDivision();
        }

        // Equivalent to:
        // result = a == 0 ? 0 : 1 + (a - 1) / b
        assembly ("memory-safe") {
            result := mul(iszero(iszero(a)), add(1, div(sub(a, 1), b)))
        }
    }

    /**
     * @dev Returns x^y, assuming both are fixed point numbers, rounding down. The result is guaranteed to not be above
     * the true value (that is, the error function expected - actual is always positive).
     */
    function powDown(uint256 x, uint256 y) internal pure returns (uint256) {
        // Optimize for when y equals 1.0, 2.0 or 4.0, as those are very simple to implement and occur often in 50/50
        // and 80/20 Weighted Pools
        if (y == ONE) {
            return x;
        } else if (y == TWO) {
            return mulDown(x, x);
        } else if (y == FOUR) {
            uint256 square = mulDown(x, x);
            return mulDown(square, square);
        } else {
            uint256 raw = LogExpMath.pow(x, y);
            uint256 maxError = mulUp(raw, MAX_POW_RELATIVE_ERROR) + 1;

            if (raw < maxError) {
                return 0;
            } else {
                unchecked {
                    return raw - maxError;
                }
            }
        }
    }

    /**
     * @dev Returns x^y, assuming both are fixed point numbers, rounding up. The result is guaranteed to not be below
     * the true value (that is, the error function expected - actual is always negative).
     */
    function powUp(uint256 x, uint256 y) internal pure returns (uint256) {
        // Optimize for when y equals 1.0, 2.0 or 4.0, as those are very simple to implement and occur often in 50/50
        // and 80/20 Weighted Pools
        if (y == ONE) {
            return x;
        } else if (y == TWO) {
            return mulUp(x, x);
        } else if (y == FOUR) {
            uint256 square = mulUp(x, x);
            return mulUp(square, square);
        } else {
            uint256 raw = LogExpMath.pow(x, y);
            uint256 maxError = mulUp(raw, MAX_POW_RELATIVE_ERROR) + 1;

            return raw + maxError;
        }
    }

    /**
     * @dev Returns the complement of a value (1 - x), capped to 0 if x is larger than 1.
     *
     * Useful when computing the complement for values with some level of relative error, as it strips this error and
     * prevents intermediate negative values.
     */
    function complement(uint256 x) internal pure returns (uint256 result) {
        // Equivalent to:
        // result = (x < ONE) ? (ONE - x) : 0
        assembly ("memory-safe") {
            result := mul(lt(x, ONE), sub(ONE, x))
        }
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.24;

// solhint-disable

/**
 * @dev Exponentiation and logarithm functions for 18 decimal fixed point numbers (both base and exponent/argument).
 *
 * Exponentiation and logarithm with arbitrary bases (x^y and log_x(y)) are implemented by conversion to natural
 * exponentiation and logarithm (where the base is Euler's number).
 *
 * All math operations are unchecked in order to save gas.
 *
 * @author Fernando Martinelli - @fernandomartinelli
 * @author Sergio Yuhjtman     - @sergioyuhjtman
 * @author Daniel Fernandez    - @dmf7z
 */
library LogExpMath {
    /// @notice This error is thrown when a base is not within an acceptable range.
    error BaseOutOfBounds();

    /// @notice This error is thrown when a exponent is not within an acceptable range.
    error ExponentOutOfBounds();

    /// @notice This error is thrown when the exponent * ln(base) is not within an acceptable range.
    error ProductOutOfBounds();

    /// @notice This error is thrown when an exponent used in the exp function is not within an acceptable range.
    error InvalidExponent();

    /// @notice This error is thrown when a variable or result is not within the acceptable bounds defined in the function.
    error OutOfBounds();

    // All fixed point multiplications and divisions are inlined. This means we need to divide by ONE when multiplying
    // two numbers, and multiply by ONE when dividing them.

    // All arguments and return values are 18 decimal fixed point numbers.
    int256 constant ONE_18 = 1e18;

    // Internally, intermediate values are computed with higher precision as 20 decimal fixed point numbers, and in the
    // case of ln36, 36 decimals.
    int256 constant ONE_20 = 1e20;
    int256 constant ONE_36 = 1e36;

    // The domain of natural exponentiation is bound by the word size and number of decimals used.
    //
    // Because internally the result will be stored using 20 decimals, the largest possible result is
    // (2^255 - 1) / 10^20, which makes the largest exponent ln((2^255 - 1) / 10^20) = 130.700829182905140221.
    // The smallest possible result is 10^(-18), which makes largest negative argument
    // ln(10^(-18)) = -41.446531673892822312.
    // We use 130.0 and -41.0 to have some safety margin.
    int256 constant MAX_NATURAL_EXPONENT = 130e18;
    int256 constant MIN_NATURAL_EXPONENT = -41e18;

    // Bounds for ln_36's argument. Both ln(0.9) and ln(1.1) can be represented with 36 decimal places in a fixed point
    // 256 bit integer.
    int256 constant LN_36_LOWER_BOUND = ONE_18 - 1e17;
    int256 constant LN_36_UPPER_BOUND = ONE_18 + 1e17;

    uint256 constant MILD_EXPONENT_BOUND = 2 ** 254 / uint256(ONE_20);

    // 18 decimal constants
    int256 constant x0 = 128000000000000000000; // 2ˆ7
    int256 constant a0 = 38877084059945950922200000000000000000000000000000000000; // eˆ(x0) (no decimals)
    int256 constant x1 = 64000000000000000000; // 2ˆ6
    int256 constant a1 = 6235149080811616882910000000; // eˆ(x1) (no decimals)

    // 20 decimal constants
    int256 constant x2 = 3200000000000000000000; // 2ˆ5
    int256 constant a2 = 7896296018268069516100000000000000; // eˆ(x2)
    int256 constant x3 = 1600000000000000000000; // 2ˆ4
    int256 constant a3 = 888611052050787263676000000; // eˆ(x3)
    int256 constant x4 = 800000000000000000000; // 2ˆ3
    int256 constant a4 = 298095798704172827474000; // eˆ(x4)
    int256 constant x5 = 400000000000000000000; // 2ˆ2
    int256 constant a5 = 5459815003314423907810; // eˆ(x5)
    int256 constant x6 = 200000000000000000000; // 2ˆ1
    int256 constant a6 = 738905609893065022723; // eˆ(x6)
    int256 constant x7 = 100000000000000000000; // 2ˆ0
    int256 constant a7 = 271828182845904523536; // eˆ(x7)
    int256 constant x8 = 50000000000000000000; // 2ˆ-1
    int256 constant a8 = 164872127070012814685; // eˆ(x8)
    int256 constant x9 = 25000000000000000000; // 2ˆ-2
    int256 constant a9 = 128402541668774148407; // eˆ(x9)
    int256 constant x10 = 12500000000000000000; // 2ˆ-3
    int256 constant a10 = 113314845306682631683; // eˆ(x10)
    int256 constant x11 = 6250000000000000000; // 2ˆ-4
    int256 constant a11 = 106449445891785942956; // eˆ(x11)

    /**
     * @dev Exponentiation (x^y) with unsigned 18 decimal fixed point base and exponent.
     *
     * Reverts if ln(x) * y is smaller than `MIN_NATURAL_EXPONENT`, or larger than `MAX_NATURAL_EXPONENT`.
     */
    function pow(uint256 x, uint256 y) internal pure returns (uint256) {
        if (y == 0) {
            // We solve the 0^0 indetermination by making it equal one.
            return uint256(ONE_18);
        }

        if (x == 0) {
            return 0;
        }

        // Instead of computing x^y directly, we instead rely on the properties of logarithms and exponentiation to
        // arrive at that result. In particular, exp(ln(x)) = x, and ln(x^y) = y * ln(x). This means
        // x^y = exp(y * ln(x)).

        // The ln function takes a signed value, so we need to make sure x fits in the signed 256 bit range.
        if (x >> 255 != 0) {
            revert BaseOutOfBounds();
        }
        int256 x_int256 = int256(x);

        // We will compute y * ln(x) in a single step. Depending on the value of x, we can either use ln or ln_36. In
        // both cases, we leave the division by ONE_18 (due to fixed point multiplication) to the end.

        // This prevents y * ln(x) from overflowing, and at the same time guarantees y fits in the signed 256 bit range.
        if (y >= MILD_EXPONENT_BOUND) {
            revert ExponentOutOfBounds();
        }
        int256 y_int256 = int256(y);

        int256 logx_times_y;
        unchecked {
            if (LN_36_LOWER_BOUND < x_int256 && x_int256 < LN_36_UPPER_BOUND) {
                int256 ln_36_x = _ln_36(x_int256);

                // ln_36_x has 36 decimal places, so multiplying by y_int256 isn't as straightforward, since we can't just
                // bring y_int256 to 36 decimal places, as it might overflow. Instead, we perform two 18 decimal
                // multiplications and add the results: one with the first 18 decimals of ln_36_x, and one with the
                // (downscaled) last 18 decimals.
                logx_times_y = ((ln_36_x / ONE_18) * y_int256 + ((ln_36_x % ONE_18) * y_int256) / ONE_18);
            } else {
                logx_times_y = _ln(x_int256) * y_int256;
            }
            logx_times_y /= ONE_18;
        }

        // Finally, we compute exp(y * ln(x)) to arrive at x^y
        if (!(MIN_NATURAL_EXPONENT <= logx_times_y && logx_times_y <= MAX_NATURAL_EXPONENT)) {
            revert ProductOutOfBounds();
        }

        return uint256(exp(logx_times_y));
    }

    /**
     * @dev Natural exponentiation (e^x) with signed 18 decimal fixed point exponent.
     *
     * Reverts if `x` is smaller than MIN_NATURAL_EXPONENT, or larger than `MAX_NATURAL_EXPONENT`.
     */
    function exp(int256 x) internal pure returns (int256) {
        if (!(x >= MIN_NATURAL_EXPONENT && x <= MAX_NATURAL_EXPONENT)) {
            revert InvalidExponent();
        }

        // We avoid using recursion here because zkSync doesn't support it.
        bool negativeExponent = false;

        if (x < 0) {
            // We only handle positive exponents: e^(-x) is computed as 1 / e^x. We can safely make x positive since it
            // fits in the signed 256 bit range (as it is larger than MIN_NATURAL_EXPONENT). In the negative
            // exponent case, compute e^x, then return 1 / result.
            unchecked {
                x = -x;
            }
            negativeExponent = true;
        }

        // First, we use the fact that e^(x+y) = e^x * e^y to decompose x into a sum of powers of two, which we call x_n,
        // where x_n == 2^(7 - n), and e^x_n = a_n has been precomputed. We choose the first x_n, x0, to equal 2^7
        // because all larger powers are larger than MAX_NATURAL_EXPONENT, and therefore not present in the
        // decomposition.
        // At the end of this process we will have the product of all e^x_n = a_n that apply, and the remainder of this
        // decomposition, which will be lower than the smallest x_n.
        // exp(x) = k_0 * a_0 * k_1 * a_1 * ... + k_n * a_n * exp(remainder), where each k_n equals either 0 or 1.
        // We mutate x by subtracting x_n, making it the remainder of the decomposition.

        // The first two a_n (e^(2^7) and e^(2^6)) are too large if stored as 18 decimal numbers, and could cause
        // intermediate overflows. Instead we store them as plain integers, with 0 decimals.
        // Additionally, x0 + x1 is larger than MAX_NATURAL_EXPONENT, which means they will not both be present in the
        // decomposition.

        // For each x_n, we test if that term is present in the decomposition (if x is larger than it), and if so deduct
        // it and compute the accumulated product.

        int256 firstAN;
        unchecked {
            if (x >= x0) {
                x -= x0;
                firstAN = a0;
            } else if (x >= x1) {
                x -= x1;
                firstAN = a1;
            } else {
                firstAN = 1; // One with no decimal places
            }

            // We now transform x into a 20 decimal fixed point number, to have enhanced precision when computing the
            // smaller terms.
            x *= 100;
        }

        // `product` is the accumulated product of all a_n (except a0 and a1), which starts at 20 decimal fixed point
        // one. Recall that fixed point multiplication requires dividing by ONE_20.
        int256 product = ONE_20;

        unchecked {
            if (x >= x2) {
                x -= x2;
                product = (product * a2) / ONE_20;
            }
            if (x >= x3) {
                x -= x3;
                product = (product * a3) / ONE_20;
            }
            if (x >= x4) {
                x -= x4;
                product = (product * a4) / ONE_20;
            }
            if (x >= x5) {
                x -= x5;
                product = (product * a5) / ONE_20;
            }
            if (x >= x6) {
                x -= x6;
                product = (product * a6) / ONE_20;
            }
            if (x >= x7) {
                x -= x7;
                product = (product * a7) / ONE_20;
            }
            if (x >= x8) {
                x -= x8;
                product = (product * a8) / ONE_20;
            }
            if (x >= x9) {
                x -= x9;
                product = (product * a9) / ONE_20;
            }
        }

        // x10 and x11 are unnecessary here since we have high enough precision already.

        // Now we need to compute e^x, where x is small (in particular, it is smaller than x9). We use the Taylor series
        // expansion for e^x: 1 + x + (x^2 / 2!) + (x^3 / 3!) + ... + (x^n / n!).

        int256 seriesSum = ONE_20; // The initial one in the sum, with 20 decimal places.
        int256 term; // Each term in the sum, where the nth term is (x^n / n!).

        // The first term is simply x.
        term = x;
        unchecked {
            seriesSum += term;

            // Each term (x^n / n!) equals the previous one times x, divided by n. Since x is a fixed point number,
            // multiplying by it requires dividing by ONE_20, but dividing by the non-fixed point n values does not.

            term = ((term * x) / ONE_20) / 2;
            seriesSum += term;

            term = ((term * x) / ONE_20) / 3;
            seriesSum += term;

            term = ((term * x) / ONE_20) / 4;
            seriesSum += term;

            term = ((term * x) / ONE_20) / 5;
            seriesSum += term;

            term = ((term * x) / ONE_20) / 6;
            seriesSum += term;

            term = ((term * x) / ONE_20) / 7;
            seriesSum += term;

            term = ((term * x) / ONE_20) / 8;
            seriesSum += term;

            term = ((term * x) / ONE_20) / 9;
            seriesSum += term;

            term = ((term * x) / ONE_20) / 10;
            seriesSum += term;

            term = ((term * x) / ONE_20) / 11;
            seriesSum += term;

            term = ((term * x) / ONE_20) / 12;
            seriesSum += term;

            // 12 Taylor terms are sufficient for 18 decimal precision.

            // We now have the first a_n (with no decimals), and the product of all other a_n present, and the Taylor
            // approximation of the exponentiation of the remainder (both with 20 decimals). All that remains is to multiply
            // all three (one 20 decimal fixed point multiplication, dividing by ONE_20, and one integer multiplication),
            // and then drop two digits to return an 18 decimal value.

            int256 result = (((product * seriesSum) / ONE_20) * firstAN) / 100;

            // We avoid using recursion here because zkSync doesn't support it.
            return negativeExponent ? (ONE_18 * ONE_18) / result : result;
        }
    }

    /// @dev Logarithm (log(arg, base), with signed 18 decimal fixed point base and argument.
    function log(int256 arg, int256 base) internal pure returns (int256) {
        // This performs a simple base change: log(arg, base) = ln(arg) / ln(base).

        // Both logBase and logArg are computed as 36 decimal fixed point numbers, either by using ln_36, or by
        // upscaling.

        int256 logBase;
        unchecked {
            if (LN_36_LOWER_BOUND < base && base < LN_36_UPPER_BOUND) {
                logBase = _ln_36(base);
            } else {
                logBase = _ln(base) * ONE_18;
            }
        }

        int256 logArg;
        unchecked {
            if (LN_36_LOWER_BOUND < arg && arg < LN_36_UPPER_BOUND) {
                logArg = _ln_36(arg);
            } else {
                logArg = _ln(arg) * ONE_18;
            }

            // When dividing, we multiply by ONE_18 to arrive at a result with 18 decimal places
            return (logArg * ONE_18) / logBase;
        }
    }

    /// @dev Natural logarithm (ln(a)) with signed 18 decimal fixed point argument.
    function ln(int256 a) internal pure returns (int256) {
        // The real natural logarithm is not defined for negative numbers or zero.
        if (a <= 0) {
            revert OutOfBounds();
        }
        if (LN_36_LOWER_BOUND < a && a < LN_36_UPPER_BOUND) {
            unchecked {
                return _ln_36(a) / ONE_18;
            }
        } else {
            return _ln(a);
        }
    }

    /// @dev Internal natural logarithm (ln(a)) with signed 18 decimal fixed point argument.
    function _ln(int256 a) private pure returns (int256) {
        // We avoid using recursion here because zkSync doesn't support it.
        bool negativeExponent = false;

        if (a < ONE_18) {
            // Since ln(a^k) = k * ln(a), we can compute ln(a) as ln(a) = ln((1/a)^(-1)) = - ln((1/a)). If a is less
            // than one, 1/a will be greater than one, so in this case we compute ln(1/a) and negate the final result.
            unchecked {
                a = (ONE_18 * ONE_18) / a;
            }
            negativeExponent = true;
        }

        // First, we use the fact that ln^(a * b) = ln(a) + ln(b) to decompose ln(a) into a sum of powers of two, which
        // we call x_n, where x_n == 2^(7 - n), which are the natural logarithm of precomputed quantities a_n (that is,
        // ln(a_n) = x_n). We choose the first x_n, x0, to equal 2^7 because the exponential of all larger powers cannot
        // be represented as 18 fixed point decimal numbers in 256 bits, and are therefore larger than a.
        // At the end of this process we will have the sum of all x_n = ln(a_n) that apply, and the remainder of this
        // decomposition, which will be lower than the smallest a_n.
        // ln(a) = k_0 * x_0 + k_1 * x_1 + ... + k_n * x_n + ln(remainder), where each k_n equals either 0 or 1.
        // We mutate a by subtracting a_n, making it the remainder of the decomposition.

        // For reasons related to how `exp` works, the first two a_n (e^(2^7) and e^(2^6)) are not stored as fixed point
        // numbers with 18 decimals, but instead as plain integers with 0 decimals, so we need to multiply them by
        // ONE_18 to convert them to fixed point.
        // For each a_n, we test if that term is present in the decomposition (if a is larger than it), and if so divide
        // by it and compute the accumulated sum.

        int256 sum = 0;
        unchecked {
            if (a >= a0 * ONE_18) {
                a /= a0; // Integer, not fixed point division
                sum += x0;
            }

            if (a >= a1 * ONE_18) {
                a /= a1; // Integer, not fixed point division
                sum += x1;
            }

            // All other a_n and x_n are stored as 20 digit fixed point numbers, so we convert the sum and a to this format.
            sum *= 100;
            a *= 100;

            // Because further a_n are  20 digit fixed point numbers, we multiply by ONE_20 when dividing by them.

            if (a >= a2) {
                a = (a * ONE_20) / a2;
                sum += x2;
            }

            if (a >= a3) {
                a = (a * ONE_20) / a3;
                sum += x3;
            }

            if (a >= a4) {
                a = (a * ONE_20) / a4;
                sum += x4;
            }

            if (a >= a5) {
                a = (a * ONE_20) / a5;
                sum += x5;
            }

            if (a >= a6) {
                a = (a * ONE_20) / a6;
                sum += x6;
            }

            if (a >= a7) {
                a = (a * ONE_20) / a7;
                sum += x7;
            }

            if (a >= a8) {
                a = (a * ONE_20) / a8;
                sum += x8;
            }

            if (a >= a9) {
                a = (a * ONE_20) / a9;
                sum += x9;
            }

            if (a >= a10) {
                a = (a * ONE_20) / a10;
                sum += x10;
            }

            if (a >= a11) {
                a = (a * ONE_20) / a11;
                sum += x11;
            }
        }

        // a is now a small number (smaller than a_11, which roughly equals 1.06). This means we can use a Taylor series
        // that converges rapidly for values of `a` close to one - the same one used in ln_36.
        // Let z = (a - 1) / (a + 1).
        // ln(a) = 2 * (z + z^3 / 3 + z^5 / 5 + z^7 / 7 + ... + z^(2 * n + 1) / (2 * n + 1))

        // Recall that 20 digit fixed point division requires multiplying by ONE_20, and multiplication requires
        // division by ONE_20.
        unchecked {
            int256 z = ((a - ONE_20) * ONE_20) / (a + ONE_20);
            int256 z_squared = (z * z) / ONE_20;

            // num is the numerator of the series: the z^(2 * n + 1) term
            int256 num = z;

            // seriesSum holds the accumulated sum of each term in the series, starting with the initial z
            int256 seriesSum = num;

            // In each step, the numerator is multiplied by z^2
            num = (num * z_squared) / ONE_20;
            seriesSum += num / 3;

            num = (num * z_squared) / ONE_20;
            seriesSum += num / 5;

            num = (num * z_squared) / ONE_20;
            seriesSum += num / 7;

            num = (num * z_squared) / ONE_20;
            seriesSum += num / 9;

            num = (num * z_squared) / ONE_20;
            seriesSum += num / 11;

            // 6 Taylor terms are sufficient for 36 decimal precision.

            // Finally, we multiply by 2 (non fixed point) to compute ln(remainder)
            seriesSum *= 2;

            // We now have the sum of all x_n present, and the Taylor approximation of the logarithm of the remainder (both
            // with 20 decimals). All that remains is to sum these two, and then drop two digits to return a 18 decimal
            // value.

            int256 result = (sum + seriesSum) / 100;

            // We avoid using recursion here because zkSync doesn't support it.
            return negativeExponent ? -result : result;
        }
    }

    /**
     * @dev Internal high precision (36 decimal places) natural logarithm (ln(x)) with signed 18 decimal fixed point argument,
     * for x close to one.
     *
     * Should only be used if x is between LN_36_LOWER_BOUND and LN_36_UPPER_BOUND.
     */
    function _ln_36(int256 x) private pure returns (int256) {
        // Since ln(1) = 0, a value of x close to one will yield a very small result, which makes using 36 digits
        // worthwhile.

        // First, we transform x to a 36 digit fixed point value.
        unchecked {
            x *= ONE_18;

            // We will use the following Taylor expansion, which converges very rapidly. Let z = (x - 1) / (x + 1).
            // ln(x) = 2 * (z + z^3 / 3 + z^5 / 5 + z^7 / 7 + ... + z^(2 * n + 1) / (2 * n + 1))

            // Recall that 36 digit fixed point division requires multiplying by ONE_36, and multiplication requires
            // division by ONE_36.
            int256 z = ((x - ONE_36) * ONE_36) / (x + ONE_36);
            int256 z_squared = (z * z) / ONE_36;

            // num is the numerator of the series: the z^(2 * n + 1) term
            int256 num = z;

            // seriesSum holds the accumulated sum of each term in the series, starting with the initial z
            int256 seriesSum = num;

            // In each step, the numerator is multiplied by z^2
            num = (num * z_squared) / ONE_36;
            seriesSum += num / 3;

            num = (num * z_squared) / ONE_36;
            seriesSum += num / 5;

            num = (num * z_squared) / ONE_36;
            seriesSum += num / 7;

            num = (num * z_squared) / ONE_36;
            seriesSum += num / 9;

            num = (num * z_squared) / ONE_36;
            seriesSum += num / 11;

            num = (num * z_squared) / ONE_36;
            seriesSum += num / 13;

            num = (num * z_squared) / ONE_36;
            seriesSum += num / 15;

            // 8 Taylor terms are sufficient for 36 decimal precision.

            // All that remains is multiplying by 2 (non fixed point).
            return seriesSum * 2;
        }
    }
}

// SPDX-License-Identifier: GPL-3.0-or-later

pragma solidity ^0.8.24;

import { FixedPoint } from "./FixedPoint.sol";

/**
 * @notice Stable Pool math library based on Curve's `StableSwap`.
 * @dev See https://docs.curve.fi/references/whitepapers/stableswap/
 *
 * For security reasons, to help ensure that for all possible "round trip" paths the caller always receives the same
 * or fewer tokens than supplied, we have used precise math (i.e., '*', '/' vs. FixedPoint) whenever possible, and
 * chosen the rounding direction to favor the protocol elsewhere.
 *
 * `computeInvariant` does not use the rounding direction from `IBasePool`, effectively always rounding down to match
 * the Curve implementation.
 */
library StableMath {
    using FixedPoint for uint256;

    // Some variables have non mixed case names (e.g. P_D) that relate to the mathematical derivations.
    // solhint-disable private-vars-leading-underscore, var-name-mixedcase

    /// @notice The iterations to calculate the invariant didn't converge.
    error StableInvariantDidNotConverge();

    /// @notice The iterations to calculate the balance didn't converge.
    error StableComputeBalanceDidNotConverge();

    // The max token count is limited by the math, and is less than the Vault's maximum.
    uint256 public constant MAX_STABLE_TOKENS = 5;

    uint256 internal constant MIN_AMP = 1;
    uint256 internal constant MAX_AMP = 5000;
    uint256 internal constant AMP_PRECISION = 1e3;

    // Invariant growth limit: non-proportional add cannot cause the invariant to increase by more than this ratio.
    uint256 internal constant MIN_INVARIANT_RATIO = 60e16; // 60%
    // Invariant shrink limit: non-proportional remove cannot cause the invariant to decrease by less than this ratio.
    uint256 internal constant MAX_INVARIANT_RATIO = 500e16; // 500%

    // Note on unchecked arithmetic:
    // This contract performs a large number of additions, subtractions, multiplications and divisions, often inside
    // loops. Since many of these operations are gas-sensitive (as they happen e.g. during a swap), it is important to
    // not make any unnecessary checks. We rely on a set of invariants to avoid having to use checked arithmetic,
    // including:
    //  - the amplification parameter is bounded by MAX_AMP * AMP_PRECISION, which fits in 23 bits
    //
    // This means e.g. we can safely multiply a balance by the amplification parameter without worrying about overflow.

    // About swap fees on add and remove liquidity:
    // Any add or remove that is not perfectly balanced (e.g. all single token operations) is mathematically
    // equivalent to a perfectly balanced add or remove followed by a series of swaps. Since these swaps would charge
    // swap fees, it follows that unbalanced adds and removes should as well.
    //
    // On these operations, we split the token amounts in 'taxable' and 'non-taxable' portions, where the 'taxable' part
    // is the one to which swap fees are applied.

    // See: https://github.com/curvefi/curve-contract/blob/b0bbf77f8f93c9c5f4e415bce9cd71f0cdee960e/contracts/pool-templates/base/SwapTemplateBase.vy#L206
    // solhint-disable-previous-line max-line-length

    /**
     * @notice Computes the invariant given the current balances.
     * @dev It uses the Newton-Raphson approximation. The amplification parameter is given by: A n^(n-1).
     * There is no closed-form solution, so the calculation is iterative and may revert.
     *
     * @param amplificationParameter The current amplification parameter
     * @param balances The current balances
     * @return invariant The calculated invariant of the pool
     */
    function computeInvariant(
        uint256 amplificationParameter,
        uint256[] memory balances
    ) internal pure returns (uint256) {
        /**********************************************************************************************
        // invariant                                                                                 //
        // D = invariant                                                  D^(n+1)                    //
        // A = amplification coefficient      A  n^n S + D = A D n^n + -----------                   //
        // S = sum of balances                                             n^n P                     //
        // P = product of balances                                                                   //
        // n = number of tokens                                                                      //
        **********************************************************************************************/

        uint256 sum = 0; // S in the Curve version
        uint256 numTokens = balances.length;
        for (uint256 i = 0; i < numTokens; ++i) {
            sum = sum + balances[i];
        }
        if (sum == 0) {
            return 0;
        }

        uint256 prevInvariant; // Dprev in the Curve version
        uint256 invariant = sum; // D in the Curve version
        uint256 ampTimesTotal = amplificationParameter * numTokens; // Ann in the Curve version

        for (uint256 i = 0; i < 255; ++i) {
            uint256 D_P = invariant;
            for (uint256 j = 0; j < numTokens; ++j) {
                D_P = (D_P * invariant) / (balances[j] * numTokens);
            }

            prevInvariant = invariant;

            invariant =
                ((((ampTimesTotal * sum) / AMP_PRECISION) + (D_P * numTokens)) * invariant) /
                ((((ampTimesTotal - AMP_PRECISION) * invariant) / AMP_PRECISION) + ((numTokens + 1) * D_P));

            unchecked {
                // We are explicitly checking the magnitudes here, so can use unchecked math.
                if (invariant > prevInvariant) {
                    if (invariant - prevInvariant <= 1) {
                        return invariant;
                    }
                } else if (prevInvariant - invariant <= 1) {
                    return invariant;
                }
            }
        }

        revert StableInvariantDidNotConverge();
    }

    /**
     * @notice Computes the required `amountOut` of tokenOut, for `tokenAmountIn` of tokenIn.
     * @dev The calculation uses the Newton-Raphson approximation. The amplification parameter is given by: A n^(n-1).
     * @param amplificationParameter The current amplification factor
     * @param balances The current pool balances
     * @param tokenIndexIn The index of tokenIn
     * @param tokenIndexOut The index of tokenOut
     * @param tokenAmountIn The exact amount of tokenIn specified for the swap
     * @param invariant The current invariant
     * @return amountOut The calculated amount of tokenOut required for the swap
     */
    function computeOutGivenExactIn(
        uint256 amplificationParameter,
        uint256[] memory balances,
        uint256 tokenIndexIn,
        uint256 tokenIndexOut,
        uint256 tokenAmountIn,
        uint256 invariant
    ) internal pure returns (uint256) {
        /**************************************************************************************************************
        // outGivenExactIn token x for y - polynomial equation to solve                                              //
        // ay = amount out to calculate                                                                              //
        // by = balance token out                                                                                    //
        // y = by - ay (finalBalanceOut)                                                                             //
        // D = invariant                                               D                     D^(n+1)                 //
        // A = amplification coefficient               y^2 + ( S + ----------  - D) * y -  ------------- = 0         //
        // n = number of tokens                                    (A * n^n)               A * n^2n * P              //
        // S = sum of final balances but y                                                                           //
        // P = product of final balances but y                                                                       //
        **************************************************************************************************************/

        balances[tokenIndexIn] += tokenAmountIn;

        // `computeBalance` rounds up.
        uint256 finalBalanceOut = computeBalance(amplificationParameter, balances, invariant, tokenIndexOut);

        // No need to use checked arithmetic since `tokenAmountIn` was actually added to the same balance right before
        // calling `computeBalance`, which doesn't alter the balances array.
        unchecked {
            balances[tokenIndexIn] -= tokenAmountIn;
        }

        // Amount out, so we round down overall.
        return balances[tokenIndexOut] - finalBalanceOut - 1;
    }

    /**
     * @notice Computes the required `amountIn` of tokenIn, for `tokenAmountOut` of tokenOut.
     * @dev The calculation uses the Newton-Raphson approximation. The amplification parameter is given by: A n^(n-1).
     * @param amplificationParameter The current amplification factor
     * @param balances The current pool balances
     * @param tokenIndexIn The index of tokenIn
     * @param tokenIndexOut The index of tokenOut
     * @param tokenAmountOut The exact amount of tokenOut specified for the swap
     * @param invariant The current invariant
     * @return amountIn The calculated amount of tokenIn required for the swap
     */
    function computeInGivenExactOut(
        uint256 amplificationParameter,
        uint256[] memory balances,
        uint256 tokenIndexIn,
        uint256 tokenIndexOut,
        uint256 tokenAmountOut,
        uint256 invariant
    ) internal pure returns (uint256) {
        /**************************************************************************************************************
        // inGivenExactOut token x for y - polynomial equation to solve                                              //
        // ax = amount in to calculate                                                                               //
        // bx = balance token in                                                                                     //
        // x = bx + ax (finalBalanceIn)                                                                              //
        // D = invariant                                                D                     D^(n+1)                //
        // A = amplification coefficient               x^2 + ( S + ----------  - D) * x -  ------------- = 0         //
        // n = number of tokens                                     (A * n^n)               A * n^2n * P             //
        // S = sum of final balances but x                                                                           //
        // P = product of final balances but x                                                                       //
        **************************************************************************************************************/

        balances[tokenIndexOut] -= tokenAmountOut;

        // `computeBalance` rounds up.
        uint256 finalBalanceIn = computeBalance(amplificationParameter, balances, invariant, tokenIndexIn);

        // No need to use checked arithmetic since `tokenAmountOut` was actually subtracted from the same balance right
        // before calling `computeBalance`, which doesn't alter the balances array.
        unchecked {
            balances[tokenIndexOut] += tokenAmountOut;
        }

        // Amount in, so we round up overall.
        return finalBalanceIn - balances[tokenIndexIn] + 1;
    }

    /**
     * @notice Calculate the balance of a given token (at tokenIndex), given all other balances and the invariant.
     * @dev Rounds result up overall. There is no closed-form solution, so the calculation is iterative and may revert.
     * @param amplificationParameter The current amplification factor
     * @param balances The current pool balances
     * @param invariant The current invariant
     * @param tokenIndex The index of the token balance we are calculating
     * @return tokenBalance The adjusted balance of the token at `tokenIn` that matches the given invariant
     */
    function computeBalance(
        uint256 amplificationParameter,
        uint256[] memory balances,
        uint256 invariant,
        uint256 tokenIndex
    ) internal pure returns (uint256) {
        uint256 numTokens = balances.length;
        uint256 ampTimesTotal = amplificationParameter * numTokens;
        uint256 sum = balances[0];
        uint256 P_D = balances[0] * numTokens;
        for (uint256 j = 1; j < numTokens; ++j) {
            P_D = (P_D * balances[j] * numTokens) / invariant;
            sum = sum + balances[j];
        }
        sum = sum - balances[tokenIndex];

        // Use divUpRaw with inv2, as it is a "raw" 36 decimal value.
        uint256 inv2 = invariant * invariant;
        // We remove the balance from c by multiplying it.
        uint256 c = (inv2 * AMP_PRECISION).divUpRaw(ampTimesTotal * P_D) * balances[tokenIndex];
        uint256 b = sum + ((invariant * AMP_PRECISION) / ampTimesTotal);
        // We iterate to find the balance.
        uint256 prevTokenBalance = 0;
        // We multiply the first iteration outside the loop with the invariant to set the value of the
        // initial approximation.
        uint256 tokenBalance = (inv2 + c).divUpRaw(invariant + b);

        for (uint256 i = 0; i < 255; ++i) {
            prevTokenBalance = tokenBalance;

            // Use divUpRaw with tokenBalance, as it is a "raw" 36 decimal value.
            tokenBalance = ((tokenBalance * tokenBalance) + c).divUpRaw((tokenBalance * 2) + b - invariant);

            // We are explicitly checking the magnitudes here, so can use unchecked math.
            unchecked {
                if (tokenBalance > prevTokenBalance) {
                    if (tokenBalance - prevTokenBalance <= 1) {
                        return tokenBalance;
                    }
                } else if (prevTokenBalance - tokenBalance <= 1) {
                    return tokenBalance;
                }
            }
        }

        revert StableComputeBalanceDidNotConverge();
    }
}

// SPDX-License-Identifier: GPL-3.0-or-later

pragma solidity ^0.8.24;

import { IERC20Metadata } from "@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol";
import { IERC20Permit } from "@openzeppelin/contracts/token/ERC20/extensions/IERC20Permit.sol";
import { ERC165 } from "@openzeppelin/contracts/utils/introspection/ERC165.sol";
import { EIP712 } from "@openzeppelin/contracts/utils/cryptography/EIP712.sol";
import { ECDSA } from "@openzeppelin/contracts/utils/cryptography/ECDSA.sol";
import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import { Nonces } from "@openzeppelin/contracts/utils/Nonces.sol";

import { IRateProvider } from "@balancer-labs/v3-interfaces/contracts/solidity-utils/helpers/IRateProvider.sol";
import { IVault } from "@balancer-labs/v3-interfaces/contracts/vault/IVault.sol";

import { VaultGuard } from "./VaultGuard.sol";

/**
 * @notice `BalancerPoolToken` is a fully ERC20-compatible token to be used as the base contract for Balancer Pools,
 * with all the data and implementation delegated to the ERC20Multitoken contract.

 * @dev Implementation of the ERC-20 Permit extension allowing approvals to be made via signatures, as defined in
 * https://eips.ethereum.org/EIPS/eip-2612[ERC-2612].
 */
contract BalancerPoolToken is IERC20, IERC20Metadata, IERC20Permit, IRateProvider, EIP712, Nonces, ERC165, VaultGuard {
    bytes32 public constant PERMIT_TYPEHASH =
        keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)");

    /**
     * @notice Operation failed due to an expired permit signature.
     * @param deadline The permit deadline that expired
     */
    error ERC2612ExpiredSignature(uint256 deadline);

    /**
     * @notice Operation failed due to a non-matching signature.
     * @param signer The address corresponding to the signature provider
     * @param owner The address of the owner (expected value of the signature provider)
     */
    error ERC2612InvalidSigner(address signer, address owner);

    // EIP712 also defines _name.
    string private _bptName;
    string private _bptSymbol;

    constructor(IVault vault_, string memory bptName, string memory bptSymbol) EIP712(bptName, "1") VaultGuard(vault_) {
        _bptName = bptName;
        _bptSymbol = bptSymbol;
    }

    /// @inheritdoc IERC20Metadata
    function name() external view returns (string memory) {
        return _bptName;
    }

    /// @inheritdoc IERC20Metadata
    function symbol() external view returns (string memory) {
        return _bptSymbol;
    }

    /// @inheritdoc IERC20Metadata
    function decimals() external pure returns (uint8) {
        // Always 18 decimals for BPT.
        return 18;
    }

    /// @inheritdoc IERC20
    function totalSupply() public view returns (uint256) {
        return _vault.totalSupply(address(this));
    }

    function getVault() public view returns (IVault) {
        return _vault;
    }

    /// @inheritdoc IERC20
    function balanceOf(address account) external view returns (uint256) {
        return _vault.balanceOf(address(this), account);
    }

    /// @inheritdoc IERC20
    function transfer(address to, uint256 amount) external returns (bool) {
        // Vault will perform the transfer and call emitTransfer to emit the event from this contract.
        _vault.transfer(msg.sender, to, amount);
        return true;
    }

    /// @inheritdoc IERC20
    function allowance(address owner, address spender) external view returns (uint256) {
        return _vault.allowance(address(this), owner, spender);
    }

    /// @inheritdoc IERC20
    function approve(address spender, uint256 amount) external returns (bool) {
        // Vault will perform the approval and call emitApproval to emit the event from this contract.
        _vault.approve(msg.sender, spender, amount);
        return true;
    }

    /// @inheritdoc IERC20
    function transferFrom(address from, address to, uint256 amount) external returns (bool) {
        // Vault will perform the transfer and call emitTransfer to emit the event from this contract.
        _vault.transferFrom(msg.sender, from, to, amount);
        return true;
    }

    /**
     * Accounting is centralized in the MultiToken contract, and the actual transfers and approvals are done there.
     * Operations can be initiated from either the token contract or the MultiToken.
     *
     * To maintain compliance with the ERC-20 standard, and conform to the expectations of off-chain processes,
     * the MultiToken calls `emitTransfer` and `emitApproval` during those operations, so that the event is emitted
     * only from the token contract. These events are NOT defined in the MultiToken contract.
     */

    /// @dev Emit the Transfer event. This function can only be called by the MultiToken.
    function emitTransfer(address from, address to, uint256 amount) external onlyVault {
        emit Transfer(from, to, amount);
    }

    /// @dev Emit the Approval event. This function can only be called by the MultiToken.
    function emitApproval(address owner, address spender, uint256 amount) external onlyVault {
        emit Approval(owner, spender, amount);
    }

    // @inheritdoc IERC20Permit
    function permit(
        address owner,
        address spender,
        uint256 amount,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) public virtual {
        // solhint-disable-next-line not-rely-on-time
        if (block.timestamp > deadline) {
            revert ERC2612ExpiredSignature(deadline);
        }

        bytes32 structHash = keccak256(abi.encode(PERMIT_TYPEHASH, owner, spender, amount, _useNonce(owner), deadline));

        bytes32 hash = _hashTypedDataV4(structHash);

        address signer = ECDSA.recover(hash, v, r, s);
        if (signer != owner) {
            revert ERC2612InvalidSigner(signer, owner);
        }

        _vault.approve(owner, spender, amount);
    }

    // @inheritdoc IERC20Permit
    function nonces(address owner) public view virtual override(IERC20Permit, Nonces) returns (uint256) {
        return super.nonces(owner);
    }

    /// @notice Increment the sender's nonce to revoke any currently granted (but not yet executed) `permit`.
    function incrementNonce() external {
        _useNonce(msg.sender);
    }

    // @inheritdoc IERC20Permit
    // solhint-disable-next-line func-name-mixedcase
    function DOMAIN_SEPARATOR() external view virtual returns (bytes32) {
        return _domainSeparatorV4();
    }

    /**
     * @notice Get the BPT rate, which is defined as: pool invariant/total supply.
     * @dev The VaultExtension contract defines a default implementation (`getBptRate`) to calculate the rate
     * of any given pool, which should be sufficient in nearly all cases.
     *
     * @return rate Rate of the pool's BPT
     */
    function getRate() public view virtual returns (uint256) {
        return getVault().getBptRate(address(this));
    }
}

// SPDX-License-Identifier: GPL-3.0-or-later

pragma solidity ^0.8.24;

import { IVaultErrors } from "@balancer-labs/v3-interfaces/contracts/vault/IVaultErrors.sol";
import { IVault } from "@balancer-labs/v3-interfaces/contracts/vault/IVault.sol";

/// @notice Contract that shares the modifier `onlyVault`.
contract VaultGuard {
    IVault internal immutable _vault;

    constructor(IVault vault) {
        _vault = vault;
    }

    modifier onlyVault() {
        _ensureOnlyVault();
        _;
    }

    function _ensureOnlyVault() private view {
        if (msg.sender != address(_vault)) {
            revert IVaultErrors.SenderIsNotVault(msg.sender);
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC4626.sol)

pragma solidity ^0.8.20;

import {IERC20} from "../token/ERC20/IERC20.sol";
import {IERC20Metadata} from "../token/ERC20/extensions/IERC20Metadata.sol";

/**
 * @dev Interface of the ERC4626 "Tokenized Vault Standard", as defined in
 * https://eips.ethereum.org/EIPS/eip-4626[ERC-4626].
 */
interface IERC4626 is IERC20, IERC20Metadata {
    event Deposit(address indexed sender, address indexed owner, uint256 assets, uint256 shares);

    event Withdraw(
        address indexed sender,
        address indexed receiver,
        address indexed owner,
        uint256 assets,
        uint256 shares
    );

    /**
     * @dev Returns the address of the underlying token used for the Vault for accounting, depositing, and withdrawing.
     *
     * - MUST be an ERC-20 token contract.
     * - MUST NOT revert.
     */
    function asset() external view returns (address assetTokenAddress);

    /**
     * @dev Returns the total amount of the underlying asset that is “managed” by Vault.
     *
     * - SHOULD include any compounding that occurs from yield.
     * - MUST be inclusive of any fees that are charged against assets in the Vault.
     * - MUST NOT revert.
     */
    function totalAssets() external view returns (uint256 totalManagedAssets);

    /**
     * @dev Returns the amount of shares that the Vault would exchange for the amount of assets provided, in an ideal
     * scenario where all the conditions are met.
     *
     * - MUST NOT be inclusive of any fees that are charged against assets in the Vault.
     * - MUST NOT show any variations depending on the caller.
     * - MUST NOT reflect slippage or other on-chain conditions, when performing the actual exchange.
     * - MUST NOT revert.
     *
     * NOTE: This calculation MAY NOT reflect the “per-user” price-per-share, and instead should reflect the
     * “average-user’s” price-per-share, meaning what the average user should expect to see when exchanging to and
     * from.
     */
    function convertToShares(uint256 assets) external view returns (uint256 shares);

    /**
     * @dev Returns the amount of assets that the Vault would exchange for the amount of shares provided, in an ideal
     * scenario where all the conditions are met.
     *
     * - MUST NOT be inclusive of any fees that are charged against assets in the Vault.
     * - MUST NOT show any variations depending on the caller.
     * - MUST NOT reflect slippage or other on-chain conditions, when performing the actual exchange.
     * - MUST NOT revert.
     *
     * NOTE: This calculation MAY NOT reflect the “per-user” price-per-share, and instead should reflect the
     * “average-user’s” price-per-share, meaning what the average user should expect to see when exchanging to and
     * from.
     */
    function convertToAssets(uint256 shares) external view returns (uint256 assets);

    /**
     * @dev Returns the maximum amount of the underlying asset that can be deposited into the Vault for the receiver,
     * through a deposit call.
     *
     * - MUST return a limited value if receiver is subject to some deposit limit.
     * - MUST return 2 ** 256 - 1 if there is no limit on the maximum amount of assets that may be deposited.
     * - MUST NOT revert.
     */
    function maxDeposit(address receiver) external view returns (uint256 maxAssets);

    /**
     * @dev Allows an on-chain or off-chain user to simulate the effects of their deposit at the current block, given
     * current on-chain conditions.
     *
     * - MUST return as close to and no more than the exact amount of Vault shares that would be minted in a deposit
     *   call in the same transaction. I.e. deposit should return the same or more shares as previewDeposit if called
     *   in the same transaction.
     * - MUST NOT account for deposit limits like those returned from maxDeposit and should always act as though the
     *   deposit would be accepted, regardless if the user has enough tokens approved, etc.
     * - MUST be inclusive of deposit fees. Integrators should be aware of the existence of deposit fees.
     * - MUST NOT revert.
     *
     * NOTE: any unfavorable discrepancy between convertToShares and previewDeposit SHOULD be considered slippage in
     * share price or some other type of condition, meaning the depositor will lose assets by depositing.
     */
    function previewDeposit(uint256 assets) external view returns (uint256 shares);

    /**
     * @dev Mints shares Vault shares to receiver by depositing exactly amount of underlying tokens.
     *
     * - MUST emit the Deposit event.
     * - MAY support an additional flow in which the underlying tokens are owned by the Vault contract before the
     *   deposit execution, and are accounted for during deposit.
     * - MUST revert if all of assets cannot be deposited (due to deposit limit being reached, slippage, the user not
     *   approving enough underlying tokens to the Vault contract, etc).
     *
     * NOTE: most implementations will require pre-approval of the Vault with the Vault’s underlying asset token.
     */
    function deposit(uint256 assets, address receiver) external returns (uint256 shares);

    /**
     * @dev Returns the maximum amount of the Vault shares that can be minted for the receiver, through a mint call.
     * - MUST return a limited value if receiver is subject to some mint limit.
     * - MUST return 2 ** 256 - 1 if there is no limit on the maximum amount of shares that may be minted.
     * - MUST NOT revert.
     */
    function maxMint(address receiver) external view returns (uint256 maxShares);

    /**
     * @dev Allows an on-chain or off-chain user to simulate the effects of their mint at the current block, given
     * current on-chain conditions.
     *
     * - MUST return as close to and no fewer than the exact amount of assets that would be deposited in a mint call
     *   in the same transaction. I.e. mint should return the same or fewer assets as previewMint if called in the
     *   same transaction.
     * - MUST NOT account for mint limits like those returned from maxMint and should always act as though the mint
     *   would be accepted, regardless if the user has enough tokens approved, etc.
     * - MUST be inclusive of deposit fees. Integrators should be aware of the existence of deposit fees.
     * - MUST NOT revert.
     *
     * NOTE: any unfavorable discrepancy between convertToAssets and previewMint SHOULD be considered slippage in
     * share price or some other type of condition, meaning the depositor will lose assets by minting.
     */
    function previewMint(uint256 shares) external view returns (uint256 assets);

    /**
     * @dev Mints exactly shares Vault shares to receiver by depositing amount of underlying tokens.
     *
     * - MUST emit the Deposit event.
     * - MAY support an additional flow in which the underlying tokens are owned by the Vault contract before the mint
     *   execution, and are accounted for during mint.
     * - MUST revert if all of shares cannot be minted (due to deposit limit being reached, slippage, the user not
     *   approving enough underlying tokens to the Vault contract, etc).
     *
     * NOTE: most implementations will require pre-approval of the Vault with the Vault’s underlying asset token.
     */
    function mint(uint256 shares, address receiver) external returns (uint256 assets);

    /**
     * @dev Returns the maximum amount of the underlying asset that can be withdrawn from the owner balance in the
     * Vault, through a withdraw call.
     *
     * - MUST return a limited value if owner is subject to some withdrawal limit or timelock.
     * - MUST NOT revert.
     */
    function maxWithdraw(address owner) external view returns (uint256 maxAssets);

    /**
     * @dev Allows an on-chain or off-chain user to simulate the effects of their withdrawal at the current block,
     * given current on-chain conditions.
     *
     * - MUST return as close to and no fewer than the exact amount of Vault shares that would be burned in a withdraw
     *   call in the same transaction. I.e. withdraw should return the same or fewer shares as previewWithdraw if
     *   called
     *   in the same transaction.
     * - MUST NOT account for withdrawal limits like those returned from maxWithdraw and should always act as though
     *   the withdrawal would be accepted, regardless if the user has enough shares, etc.
     * - MUST be inclusive of withdrawal fees. Integrators should be aware of the existence of withdrawal fees.
     * - MUST NOT revert.
     *
     * NOTE: any unfavorable discrepancy between convertToShares and previewWithdraw SHOULD be considered slippage in
     * share price or some other type of condition, meaning the depositor will lose assets by depositing.
     */
    function previewWithdraw(uint256 assets) external view returns (uint256 shares);

    /**
     * @dev Burns shares from owner and sends exactly assets of underlying tokens to receiver.
     *
     * - MUST emit the Withdraw event.
     * - MAY support an additional flow in which the underlying tokens are owned by the Vault contract before the
     *   withdraw execution, and are accounted for during withdraw.
     * - MUST revert if all of assets cannot be withdrawn (due to withdrawal limit being reached, slippage, the owner
     *   not having enough shares, etc).
     *
     * Note that some implementations will require pre-requesting to the Vault before a withdrawal may be performed.
     * Those methods should be performed separately.
     */
    function withdraw(uint256 assets, address receiver, address owner) external returns (uint256 shares);

    /**
     * @dev Returns the maximum amount of Vault shares that can be redeemed from the owner balance in the Vault,
     * through a redeem call.
     *
     * - MUST return a limited value if owner is subject to some withdrawal limit or timelock.
     * - MUST return balanceOf(owner) if owner is not subject to any withdrawal limit or timelock.
     * - MUST NOT revert.
     */
    function maxRedeem(address owner) external view returns (uint256 maxShares);

    /**
     * @dev Allows an on-chain or off-chain user to simulate the effects of their redeemption at the current block,
     * given current on-chain conditions.
     *
     * - MUST return as close to and no more than the exact amount of assets that would be withdrawn in a redeem call
     *   in the same transaction. I.e. redeem should return the same or more assets as previewRedeem if called in the
     *   same transaction.
     * - MUST NOT account for redemption limits like those returned from maxRedeem and should always act as though the
     *   redemption would be accepted, regardless if the user has enough shares, etc.
     * - MUST be inclusive of withdrawal fees. Integrators should be aware of the existence of withdrawal fees.
     * - MUST NOT revert.
     *
     * NOTE: any unfavorable discrepancy between convertToAssets and previewRedeem SHOULD be considered slippage in
     * share price or some other type of condition, meaning the depositor will lose assets by redeeming.
     */
    function previewRedeem(uint256 shares) external view returns (uint256 assets);

    /**
     * @dev Burns exactly shares from owner and sends assets of underlying tokens to receiver.
     *
     * - MUST emit the Withdraw event.
     * - MAY support an additional flow in which the underlying tokens are owned by the Vault contract before the
     *   redeem execution, and are accounted for during redeem.
     * - MUST revert if all of shares cannot be redeemed (due to withdrawal limit being reached, slippage, the owner
     *   not having enough shares, etc).
     *
     * NOTE: some implementations will require pre-requesting to the Vault before a withdrawal may be performed.
     * Those methods should be performed separately.
     */
    function redeem(uint256 shares, address receiver, address owner) external returns (uint256 assets);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC5267.sol)

pragma solidity ^0.8.20;

interface IERC5267 {
    /**
     * @dev MAY be emitted to signal that the domain could have changed.
     */
    event EIP712DomainChanged();

    /**
     * @dev returns the fields and values that describe the domain separator used by this contract for EIP-712
     * signature.
     */
    function eip712Domain()
        external
        view
        returns (
            bytes1 fields,
            string memory name,
            string memory version,
            uint256 chainId,
            address verifyingContract,
            bytes32 salt,
            uint256[] memory extensions
        );
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/IERC20Metadata.sol)

pragma solidity ^0.8.20;

import {IERC20} from "../IERC20.sol";

/**
 * @dev Interface for the optional metadata functions from the ERC20 standard.
 */
interface IERC20Metadata is IERC20 {
    /**
     * @dev Returns the name of the token.
     */
    function name() external view returns (string memory);

    /**
     * @dev Returns the symbol of the token.
     */
    function symbol() external view returns (string memory);

    /**
     * @dev Returns the decimals places of the token.
     */
    function decimals() external view returns (uint8);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/IERC20Permit.sol)

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in
 * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].
 *
 * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by
 * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't
 * need to send a transaction, and thus is not required to hold Ether at all.
 *
 * ==== Security Considerations
 *
 * There are two important considerations concerning the use of `permit`. The first is that a valid permit signature
 * expresses an allowance, and it should not be assumed to convey additional meaning. In particular, it should not be
 * considered as an intention to spend the allowance in any specific way. The second is that because permits have
 * built-in replay protection and can be submitted by anyone, they can be frontrun. A protocol that uses permits should
 * take this into consideration and allow a `permit` call to fail. Combining these two aspects, a pattern that may be
 * generally recommended is:
 *
 * ```solidity
 * function doThingWithPermit(..., uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) public {
 *     try token.permit(msg.sender, address(this), value, deadline, v, r, s) {} catch {}
 *     doThing(..., value);
 * }
 *
 * function doThing(..., uint256 value) public {
 *     token.safeTransferFrom(msg.sender, address(this), value);
 *     ...
 * }
 * ```
 *
 * Observe that: 1) `msg.sender` is used as the owner, leaving no ambiguity as to the signer intent, and 2) the use of
 * `try/catch` allows the permit to fail and makes the code tolerant to frontrunning. (See also
 * {SafeERC20-safeTransferFrom}).
 *
 * Additionally, note that smart contract wallets (such as Argent or Safe) are not able to produce permit signatures, so
 * contracts should have entry points that don't rely on permit.
 */
interface IERC20Permit {
    /**
     * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,
     * given ``owner``'s signed approval.
     *
     * IMPORTANT: The same issues {IERC20-approve} has related to transaction
     * ordering also apply here.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `deadline` must be a timestamp in the future.
     * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`
     * over the EIP712-formatted function arguments.
     * - the signature must use ``owner``'s current nonce (see {nonces}).
     *
     * For more information on the signature format, see the
     * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP
     * section].
     *
     * CAUTION: See Security Considerations above.
     */
    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external;

    /**
     * @dev Returns the current nonce for `owner`. This value must be
     * included whenever a signature is generated for {permit}.
     *
     * Every successful call to {permit} increases ``owner``'s nonce by one. This
     * prevents a signature from being used multiple times.
     */
    function nonces(address owner) external view returns (uint256);

    /**
     * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.
     */
    // solhint-disable-next-line func-name-mixedcase
    function DOMAIN_SEPARATOR() external view returns (bytes32);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);

    /**
     * @dev Returns the value of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the value of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves a `value` amount of tokens from the caller's account to `to`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address to, uint256 value) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets a `value` amount of tokens as the allowance of `spender` over the
     * caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 value) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to` using the
     * allowance mechanism. `value` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(address from, address to, uint256 value) external returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/cryptography/ECDSA.sol)

pragma solidity ^0.8.20;

/**
 * @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations.
 *
 * These functions can be used to verify that a message was signed by the holder
 * of the private keys of a given address.
 */
library ECDSA {
    enum RecoverError {
        NoError,
        InvalidSignature,
        InvalidSignatureLength,
        InvalidSignatureS
    }

    /**
     * @dev The signature derives the `address(0)`.
     */
    error ECDSAInvalidSignature();

    /**
     * @dev The signature has an invalid length.
     */
    error ECDSAInvalidSignatureLength(uint256 length);

    /**
     * @dev The signature has an S value that is in the upper half order.
     */
    error ECDSAInvalidSignatureS(bytes32 s);

    /**
     * @dev Returns the address that signed a hashed message (`hash`) with `signature` or an error. This will not
     * return address(0) without also returning an error description. Errors are documented using an enum (error type)
     * and a bytes32 providing additional information about the error.
     *
     * If no error is returned, then the address can be used for verification purposes.
     *
     * The `ecrecover` EVM precompile allows for malleable (non-unique) signatures:
     * this function rejects them by requiring the `s` value to be in the lower
     * half order, and the `v` value to be either 27 or 28.
     *
     * IMPORTANT: `hash` _must_ be the result of a hash operation for the
     * verification to be secure: it is possible to craft signatures that
     * recover to arbitrary addresses for non-hashed data. A safe way to ensure
     * this is by receiving a hash of the original message (which may otherwise
     * be too long), and then calling {MessageHashUtils-toEthSignedMessageHash} on it.
     *
     * Documentation for signature generation:
     * - with https://web3js.readthedocs.io/en/v1.3.4/web3-eth-accounts.html#sign[Web3.js]
     * - with https://docs.ethers.io/v5/api/signer/#Signer-signMessage[ethers]
     */
    function tryRecover(bytes32 hash, bytes memory signature) internal pure returns (address, RecoverError, bytes32) {
        if (signature.length == 65) {
            bytes32 r;
            bytes32 s;
            uint8 v;
            // ecrecover takes the signature parameters, and the only way to get them
            // currently is to use assembly.
            /// @solidity memory-safe-assembly
            assembly {
                r := mload(add(signature, 0x20))
                s := mload(add(signature, 0x40))
                v := byte(0, mload(add(signature, 0x60)))
            }
            return tryRecover(hash, v, r, s);
        } else {
            return (address(0), RecoverError.InvalidSignatureLength, bytes32(signature.length));
        }
    }

    /**
     * @dev Returns the address that signed a hashed message (`hash`) with
     * `signature`. This address can then be used for verification purposes.
     *
     * The `ecrecover` EVM precompile allows for malleable (non-unique) signatures:
     * this function rejects them by requiring the `s` value to be in the lower
     * half order, and the `v` value to be either 27 or 28.
     *
     * IMPORTANT: `hash` _must_ be the result of a hash operation for the
     * verification to be secure: it is possible to craft signatures that
     * recover to arbitrary addresses for non-hashed data. A safe way to ensure
     * this is by receiving a hash of the original message (which may otherwise
     * be too long), and then calling {MessageHashUtils-toEthSignedMessageHash} on it.
     */
    function recover(bytes32 hash, bytes memory signature) internal pure returns (address) {
        (address recovered, RecoverError error, bytes32 errorArg) = tryRecover(hash, signature);
        _throwError(error, errorArg);
        return recovered;
    }

    /**
     * @dev Overload of {ECDSA-tryRecover} that receives the `r` and `vs` short-signature fields separately.
     *
     * See https://eips.ethereum.org/EIPS/eip-2098[EIP-2098 short signatures]
     */
    function tryRecover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address, RecoverError, bytes32) {
        unchecked {
            bytes32 s = vs & bytes32(0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff);
            // We do not check for an overflow here since the shift operation results in 0 or 1.
            uint8 v = uint8((uint256(vs) >> 255) + 27);
            return tryRecover(hash, v, r, s);
        }
    }

    /**
     * @dev Overload of {ECDSA-recover} that receives the `r and `vs` short-signature fields separately.
     */
    function recover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address) {
        (address recovered, RecoverError error, bytes32 errorArg) = tryRecover(hash, r, vs);
        _throwError(error, errorArg);
        return recovered;
    }

    /**
     * @dev Overload of {ECDSA-tryRecover} that receives the `v`,
     * `r` and `s` signature fields separately.
     */
    function tryRecover(
        bytes32 hash,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) internal pure returns (address, RecoverError, bytes32) {
        // EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature
        // unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines
        // the valid range for s in (301): 0 < s < secp256k1n ÷ 2 + 1, and for v in (302): v ∈ {27, 28}. Most
        // signatures from current libraries generate a unique signature with an s-value in the lower half order.
        //
        // If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value
        // with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or
        // vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept
        // these malleable signatures as well.
        if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) {
            return (address(0), RecoverError.InvalidSignatureS, s);
        }

        // If the signature is valid (and not malleable), return the signer address
        address signer = ecrecover(hash, v, r, s);
        if (signer == address(0)) {
            return (address(0), RecoverError.InvalidSignature, bytes32(0));
        }

        return (signer, RecoverError.NoError, bytes32(0));
    }

    /**
     * @dev Overload of {ECDSA-recover} that receives the `v`,
     * `r` and `s` signature fields separately.
     */
    function recover(bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal pure returns (address) {
        (address recovered, RecoverError error, bytes32 errorArg) = tryRecover(hash, v, r, s);
        _throwError(error, errorArg);
        return recovered;
    }

    /**
     * @dev Optionally reverts with the corresponding custom error according to the `error` argument provided.
     */
    function _throwError(RecoverError error, bytes32 errorArg) private pure {
        if (error == RecoverError.NoError) {
            return; // no error: do nothing
        } else if (error == RecoverError.InvalidSignature) {
            revert ECDSAInvalidSignature();
        } else if (error == RecoverError.InvalidSignatureLength) {
            revert ECDSAInvalidSignatureLength(uint256(errorArg));
        } else if (error == RecoverError.InvalidSignatureS) {
            revert ECDSAInvalidSignatureS(errorArg);
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/cryptography/EIP712.sol)

pragma solidity ^0.8.20;

import {MessageHashUtils} from "./MessageHashUtils.sol";
import {ShortStrings, ShortString} from "../ShortStrings.sol";
import {IERC5267} from "../../interfaces/IERC5267.sol";

/**
 * @dev https://eips.ethereum.org/EIPS/eip-712[EIP 712] is a standard for hashing and signing of typed structured data.
 *
 * The encoding scheme specified in the EIP requires a domain separator and a hash of the typed structured data, whose
 * encoding is very generic and therefore its implementation in Solidity is not feasible, thus this contract
 * does not implement the encoding itself. Protocols need to implement the type-specific encoding they need in order to
 * produce the hash of their typed data using a combination of `abi.encode` and `keccak256`.
 *
 * This contract implements the EIP 712 domain separator ({_domainSeparatorV4}) that is used as part of the encoding
 * scheme, and the final step of the encoding to obtain the message digest that is then signed via ECDSA
 * ({_hashTypedDataV4}).
 *
 * The implementation of the domain separator was designed to be as efficient as possible while still properly updating
 * the chain id to protect against replay attacks on an eventual fork of the chain.
 *
 * NOTE: This contract implements the version of the encoding known as "v4", as implemented by the JSON RPC method
 * https://docs.metamask.io/guide/signing-data.html[`eth_signTypedDataV4` in MetaMask].
 *
 * NOTE: In the upgradeable version of this contract, the cached values will correspond to the address, and the domain
 * separator of the implementation contract. This will cause the {_domainSeparatorV4} function to always rebuild the
 * separator from the immutable values, which is cheaper than accessing a cached version in cold storage.
 *
 * @custom:oz-upgrades-unsafe-allow state-variable-immutable
 */
abstract contract EIP712 is IERC5267 {
    using ShortStrings for *;

    bytes32 private constant TYPE_HASH =
        keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)");

    // Cache the domain separator as an immutable value, but also store the chain id that it corresponds to, in order to
    // invalidate the cached domain separator if the chain id changes.
    bytes32 private immutable _cachedDomainSeparator;
    uint256 private immutable _cachedChainId;
    address private immutable _cachedThis;

    bytes32 private immutable _hashedName;
    bytes32 private immutable _hashedVersion;

    ShortString private immutable _name;
    ShortString private immutable _version;
    string private _nameFallback;
    string private _versionFallback;

    /**
     * @dev Initializes the domain separator and parameter caches.
     *
     * The meaning of `name` and `version` is specified in
     * https://eips.ethereum.org/EIPS/eip-712#definition-of-domainseparator[EIP 712]:
     *
     * - `name`: the user readable name of the signing domain, i.e. the name of the DApp or the protocol.
     * - `version`: the current major version of the signing domain.
     *
     * NOTE: These parameters cannot be changed except through a xref:learn::upgrading-smart-contracts.adoc[smart
     * contract upgrade].
     */
    constructor(string memory name, string memory version) {
        _name = name.toShortStringWithFallback(_nameFallback);
        _version = version.toShortStringWithFallback(_versionFallback);
        _hashedName = keccak256(bytes(name));
        _hashedVersion = keccak256(bytes(version));

        _cachedChainId = block.chainid;
        _cachedDomainSeparator = _buildDomainSeparator();
        _cachedThis = address(this);
    }

    /**
     * @dev Returns the domain separator for the current chain.
     */
    function _domainSeparatorV4() internal view returns (bytes32) {
        if (address(this) == _cachedThis && block.chainid == _cachedChainId) {
            return _cachedDomainSeparator;
        } else {
            return _buildDomainSeparator();
        }
    }

    function _buildDomainSeparator() private view returns (bytes32) {
        return keccak256(abi.encode(TYPE_HASH, _hashedName, _hashedVersion, block.chainid, address(this)));
    }

    /**
     * @dev Given an already https://eips.ethereum.org/EIPS/eip-712#definition-of-hashstruct[hashed struct], this
     * function returns the hash of the fully encoded EIP712 message for this domain.
     *
     * This hash can be used together with {ECDSA-recover} to obtain the signer of a message. For example:
     *
     * ```solidity
     * bytes32 digest = _hashTypedDataV4(keccak256(abi.encode(
     *     keccak256("Mail(address to,string contents)"),
     *     mailTo,
     *     keccak256(bytes(mailContents))
     * )));
     * address signer = ECDSA.recover(digest, signature);
     * ```
     */
    function _hashTypedDataV4(bytes32 structHash) internal view virtual returns (bytes32) {
        return MessageHashUtils.toTypedDataHash(_domainSeparatorV4(), structHash);
    }

    /**
     * @dev See {IERC-5267}.
     */
    function eip712Domain()
        public
        view
        virtual
        returns (
            bytes1 fields,
            string memory name,
            string memory version,
            uint256 chainId,
            address verifyingContract,
            bytes32 salt,
            uint256[] memory extensions
        )
    {
        return (
            hex"0f", // 01111
            _EIP712Name(),
            _EIP712Version(),
            block.chainid,
            address(this),
            bytes32(0),
            new uint256[](0)
        );
    }

    /**
     * @dev The name parameter for the EIP712 domain.
     *
     * NOTE: By default this function reads _name which is an immutable value.
     * It only reads from storage if necessary (in case the value is too large to fit in a ShortString).
     */
    // solhint-disable-next-line func-name-mixedcase
    function _EIP712Name() internal view returns (string memory) {
        return _name.toStringWithFallback(_nameFallback);
    }

    /**
     * @dev The version parameter for the EIP712 domain.
     *
     * NOTE: By default this function reads _version which is an immutable value.
     * It only reads from storage if necessary (in case the value is too large to fit in a ShortString).
     */
    // solhint-disable-next-line func-name-mixedcase
    function _EIP712Version() internal view returns (string memory) {
        return _version.toStringWithFallback(_versionFallback);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/cryptography/MessageHashUtils.sol)

pragma solidity ^0.8.20;

import {Strings} from "../Strings.sol";

/**
 * @dev Signature message hash utilities for producing digests to be consumed by {ECDSA} recovery or signing.
 *
 * The library provides methods for generating a hash of a message that conforms to the
 * https://eips.ethereum.org/EIPS/eip-191[EIP 191] and https://eips.ethereum.org/EIPS/eip-712[EIP 712]
 * specifications.
 */
library MessageHashUtils {
    /**
     * @dev Returns the keccak256 digest of an EIP-191 signed data with version
     * `0x45` (`personal_sign` messages).
     *
     * The digest is calculated by prefixing a bytes32 `messageHash` with
     * `"\x19Ethereum Signed Message:\n32"` and hashing the result. It corresponds with the
     * hash signed when using the https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`] JSON-RPC method.
     *
     * NOTE: The `messageHash` parameter is intended to be the result of hashing a raw message with
     * keccak256, although any bytes32 value can be safely used because the final digest will
     * be re-hashed.
     *
     * See {ECDSA-recover}.
     */
    function toEthSignedMessageHash(bytes32 messageHash) internal pure returns (bytes32 digest) {
        /// @solidity memory-safe-assembly
        assembly {
            mstore(0x00, "\x19Ethereum Signed Message:\n32") // 32 is the bytes-length of messageHash
            mstore(0x1c, messageHash) // 0x1c (28) is the length of the prefix
            digest := keccak256(0x00, 0x3c) // 0x3c is the length of the prefix (0x1c) + messageHash (0x20)
        }
    }

    /**
     * @dev Returns the keccak256 digest of an EIP-191 signed data with version
     * `0x45` (`personal_sign` messages).
     *
     * The digest is calculated by prefixing an arbitrary `message` with
     * `"\x19Ethereum Signed Message:\n" + len(message)` and hashing the result. It corresponds with the
     * hash signed when using the https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`] JSON-RPC method.
     *
     * See {ECDSA-recover}.
     */
    function toEthSignedMessageHash(bytes memory message) internal pure returns (bytes32) {
        return
            keccak256(bytes.concat("\x19Ethereum Signed Message:\n", bytes(Strings.toString(message.length)), message));
    }

    /**
     * @dev Returns the keccak256 digest of an EIP-191 signed data with version
     * `0x00` (data with intended validator).
     *
     * The digest is calculated by prefixing an arbitrary `data` with `"\x19\x00"` and the intended
     * `validator` address. Then hashing the result.
     *
     * See {ECDSA-recover}.
     */
    function toDataWithIntendedValidatorHash(address validator, bytes memory data) internal pure returns (bytes32) {
        return keccak256(abi.encodePacked(hex"19_00", validator, data));
    }

    /**
     * @dev Returns the keccak256 digest of an EIP-712 typed data (EIP-191 version `0x01`).
     *
     * The digest is calculated from a `domainSeparator` and a `structHash`, by prefixing them with
     * `\x19\x01` and hashing the result. It corresponds to the hash signed by the
     * https://eips.ethereum.org/EIPS/eip-712[`eth_signTypedData`] JSON-RPC method as part of EIP-712.
     *
     * See {ECDSA-recover}.
     */
    function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32 digest) {
        /// @solidity memory-safe-assembly
        assembly {
            let ptr := mload(0x40)
            mstore(ptr, hex"19_01")
            mstore(add(ptr, 0x02), domainSeparator)
            mstore(add(ptr, 0x22), structHash)
            digest := keccak256(ptr, 0x42)
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/introspection/ERC165.sol)

pragma solidity ^0.8.20;

import {IERC165} from "./IERC165.sol";

/**
 * @dev Implementation of the {IERC165} interface.
 *
 * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
 * for the additional interface id that will be supported. For example:
 *
 * ```solidity
 * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
 *     return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
 * }
 * ```
 */
abstract contract ERC165 is IERC165 {
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual returns (bool) {
        return interfaceId == type(IERC165).interfaceId;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/introspection/IERC165.sol)

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[EIP].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface IERC165 {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/math/Math.sol)

pragma solidity ^0.8.20;

/**
 * @dev Standard math utilities missing in the Solidity language.
 */
library Math {
    /**
     * @dev Muldiv operation overflow.
     */
    error MathOverflowedMulDiv();

    enum Rounding {
        Floor, // Toward negative infinity
        Ceil, // Toward positive infinity
        Trunc, // Toward zero
        Expand // Away from zero
    }

    /**
     * @dev Returns the addition of two unsigned integers, with an overflow flag.
     */
    function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            uint256 c = a + b;
            if (c < a) return (false, 0);
            return (true, c);
        }
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, with an overflow flag.
     */
    function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b > a) return (false, 0);
            return (true, a - b);
        }
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, with an overflow flag.
     */
    function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
            // benefit is lost if 'b' is also tested.
            // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
            if (a == 0) return (true, 0);
            uint256 c = a * b;
            if (c / a != b) return (false, 0);
            return (true, c);
        }
    }

    /**
     * @dev Returns the division of two unsigned integers, with a division by zero flag.
     */
    function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b == 0) return (false, 0);
            return (true, a / b);
        }
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
     */
    function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b == 0) return (false, 0);
            return (true, a % b);
        }
    }

    /**
     * @dev Returns the largest of two numbers.
     */
    function max(uint256 a, uint256 b) internal pure returns (uint256) {
        return a > b ? a : b;
    }

    /**
     * @dev Returns the smallest of two numbers.
     */
    function min(uint256 a, uint256 b) internal pure returns (uint256) {
        return a < b ? a : b;
    }

    /**
     * @dev Returns the average of two numbers. The result is rounded towards
     * zero.
     */
    function average(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b) / 2 can overflow.
        return (a & b) + (a ^ b) / 2;
    }

    /**
     * @dev Returns the ceiling of the division of two numbers.
     *
     * This differs from standard division with `/` in that it rounds towards infinity instead
     * of rounding towards zero.
     */
    function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
        if (b == 0) {
            // Guarantee the same behavior as in a regular Solidity division.
            return a / b;
        }

        // (a + b - 1) / b can overflow on addition, so we distribute.
        return a == 0 ? 0 : (a - 1) / b + 1;
    }

    /**
     * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or
     * denominator == 0.
     * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv) with further edits by
     * Uniswap Labs also under MIT license.
     */
    function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) {
        unchecked {
            // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use
            // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256
            // variables such that product = prod1 * 2^256 + prod0.
            uint256 prod0 = x * y; // Least significant 256 bits of the product
            uint256 prod1; // Most significant 256 bits of the product
            assembly {
                let mm := mulmod(x, y, not(0))
                prod1 := sub(sub(mm, prod0), lt(mm, prod0))
            }

            // Handle non-overflow cases, 256 by 256 division.
            if (prod1 == 0) {
                // Solidity will revert if denominator == 0, unlike the div opcode on its own.
                // The surrounding unchecked block does not change this fact.
                // See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic.
                return prod0 / denominator;
            }

            // Make sure the result is less than 2^256. Also prevents denominator == 0.
            if (denominator <= prod1) {
                revert MathOverflowedMulDiv();
            }

            ///////////////////////////////////////////////
            // 512 by 256 division.
            ///////////////////////////////////////////////

            // Make division exact by subtracting the remainder from [prod1 prod0].
            uint256 remainder;
            assembly {
                // Compute remainder using mulmod.
                remainder := mulmod(x, y, denominator)

                // Subtract 256 bit number from 512 bit number.
                prod1 := sub(prod1, gt(remainder, prod0))
                prod0 := sub(prod0, remainder)
            }

            // Factor powers of two out of denominator and compute largest power of two divisor of denominator.
            // Always >= 1. See https://cs.stackexchange.com/q/138556/92363.

            uint256 twos = denominator & (0 - denominator);
            assembly {
                // Divide denominator by twos.
                denominator := div(denominator, twos)

                // Divide [prod1 prod0] by twos.
                prod0 := div(prod0, twos)

                // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.
                twos := add(div(sub(0, twos), twos), 1)
            }

            // Shift in bits from prod1 into prod0.
            prod0 |= prod1 * twos;

            // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such
            // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for
            // four bits. That is, denominator * inv = 1 mod 2^4.
            uint256 inverse = (3 * denominator) ^ 2;

            // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also
            // works in modular arithmetic, doubling the correct bits in each step.
            inverse *= 2 - denominator * inverse; // inverse mod 2^8
            inverse *= 2 - denominator * inverse; // inverse mod 2^16
            inverse *= 2 - denominator * inverse; // inverse mod 2^32
            inverse *= 2 - denominator * inverse; // inverse mod 2^64
            inverse *= 2 - denominator * inverse; // inverse mod 2^128
            inverse *= 2 - denominator * inverse; // inverse mod 2^256

            // Because the division is now exact we can divide by multiplying with the modular inverse of denominator.
            // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is
            // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1
            // is no longer required.
            result = prod0 * inverse;
            return result;
        }
    }

    /**
     * @notice Calculates x * y / denominator with full precision, following the selected rounding direction.
     */
    function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) {
        uint256 result = mulDiv(x, y, denominator);
        if (unsignedRoundsUp(rounding) && mulmod(x, y, denominator) > 0) {
            result += 1;
        }
        return result;
    }

    /**
     * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded
     * towards zero.
     *
     * Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11).
     */
    function sqrt(uint256 a) internal pure returns (uint256) {
        if (a == 0) {
            return 0;
        }

        // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.
        //
        // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have
        // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.
        //
        // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`
        // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`
        // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`
        //
        // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.
        uint256 result = 1 << (log2(a) >> 1);

        // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,
        // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at
        // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision
        // into the expected uint128 result.
        unchecked {
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            return min(result, a / result);
        }
    }

    /**
     * @notice Calculates sqrt(a), following the selected rounding direction.
     */
    function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = sqrt(a);
            return result + (unsignedRoundsUp(rounding) && result * result < a ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 2 of a positive value rounded towards zero.
     * Returns 0 if given 0.
     */
    function log2(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >> 128 > 0) {
                value >>= 128;
                result += 128;
            }
            if (value >> 64 > 0) {
                value >>= 64;
                result += 64;
            }
            if (value >> 32 > 0) {
                value >>= 32;
                result += 32;
            }
            if (value >> 16 > 0) {
                value >>= 16;
                result += 16;
            }
            if (value >> 8 > 0) {
                value >>= 8;
                result += 8;
            }
            if (value >> 4 > 0) {
                value >>= 4;
                result += 4;
            }
            if (value >> 2 > 0) {
                value >>= 2;
                result += 2;
            }
            if (value >> 1 > 0) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 2, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log2(value);
            return result + (unsignedRoundsUp(rounding) && 1 << result < value ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 10 of a positive value rounded towards zero.
     * Returns 0 if given 0.
     */
    function log10(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >= 10 ** 64) {
                value /= 10 ** 64;
                result += 64;
            }
            if (value >= 10 ** 32) {
                value /= 10 ** 32;
                result += 32;
            }
            if (value >= 10 ** 16) {
                value /= 10 ** 16;
                result += 16;
            }
            if (value >= 10 ** 8) {
                value /= 10 ** 8;
                result += 8;
            }
            if (value >= 10 ** 4) {
                value /= 10 ** 4;
                result += 4;
            }
            if (value >= 10 ** 2) {
                value /= 10 ** 2;
                result += 2;
            }
            if (value >= 10 ** 1) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 10, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log10(value);
            return result + (unsignedRoundsUp(rounding) && 10 ** result < value ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 256 of a positive value rounded towards zero.
     * Returns 0 if given 0.
     *
     * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.
     */
    function log256(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >> 128 > 0) {
                value >>= 128;
                result += 16;
            }
            if (value >> 64 > 0) {
                value >>= 64;
                result += 8;
            }
            if (value >> 32 > 0) {
                value >>= 32;
                result += 4;
            }
            if (value >> 16 > 0) {
                value >>= 16;
                result += 2;
            }
            if (value >> 8 > 0) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 256, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log256(value);
            return result + (unsignedRoundsUp(rounding) && 1 << (result << 3) < value ? 1 : 0);
        }
    }

    /**
     * @dev Returns whether a provided rounding mode is considered rounding up for unsigned integers.
     */
    function unsignedRoundsUp(Rounding rounding) internal pure returns (bool) {
        return uint8(rounding) % 2 == 1;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/math/SafeCast.sol)
// This file was procedurally generated from scripts/generate/templates/SafeCast.js.

pragma solidity ^0.8.20;

/**
 * @dev Wrappers over Solidity's uintXX/intXX casting operators with added overflow
 * checks.
 *
 * Downcasting from uint256/int256 in Solidity does not revert on overflow. This can
 * easily result in undesired exploitation or bugs, since developers usually
 * assume that overflows raise errors. `SafeCast` restores this intuition by
 * reverting the transaction when such an operation overflows.
 *
 * Using this library instead of the unchecked operations eliminates an entire
 * class of bugs, so it's recommended to use it always.
 */
library SafeCast {
    /**
     * @dev Value doesn't fit in an uint of `bits` size.
     */
    error SafeCastOverflowedUintDowncast(uint8 bits, uint256 value);

    /**
     * @dev An int value doesn't fit in an uint of `bits` size.
     */
    error SafeCastOverflowedIntToUint(int256 value);

    /**
     * @dev Value doesn't fit in an int of `bits` size.
     */
    error SafeCastOverflowedIntDowncast(uint8 bits, int256 value);

    /**
     * @dev An uint value doesn't fit in an int of `bits` size.
     */
    error SafeCastOverflowedUintToInt(uint256 value);

    /**
     * @dev Returns the downcasted uint248 from uint256, reverting on
     * overflow (when the input is greater than largest uint248).
     *
     * Counterpart to Solidity's `uint248` operator.
     *
     * Requirements:
     *
     * - input must fit into 248 bits
     */
    function toUint248(uint256 value) internal pure returns (uint248) {
        if (value > type(uint248).max) {
            revert SafeCastOverflowedUintDowncast(248, value);
        }
        return uint248(value);
    }

    /**
     * @dev Returns the downcasted uint240 from uint256, reverting on
     * overflow (when the input is greater than largest uint240).
     *
     * Counterpart to Solidity's `uint240` operator.
     *
     * Requirements:
     *
     * - input must fit into 240 bits
     */
    function toUint240(uint256 value) internal pure returns (uint240) {
        if (value > type(uint240).max) {
            revert SafeCastOverflowedUintDowncast(240, value);
        }
        return uint240(value);
    }

    /**
     * @dev Returns the downcasted uint232 from uint256, reverting on
     * overflow (when the input is greater than largest uint232).
     *
     * Counterpart to Solidity's `uint232` operator.
     *
     * Requirements:
     *
     * - input must fit into 232 bits
     */
    function toUint232(uint256 value) internal pure returns (uint232) {
        if (value > type(uint232).max) {
            revert SafeCastOverflowedUintDowncast(232, value);
        }
        return uint232(value);
    }

    /**
     * @dev Returns the downcasted uint224 from uint256, reverting on
     * overflow (when the input is greater than largest uint224).
     *
     * Counterpart to Solidity's `uint224` operator.
     *
     * Requirements:
     *
     * - input must fit into 224 bits
     */
    function toUint224(uint256 value) internal pure returns (uint224) {
        if (value > type(uint224).max) {
            revert SafeCastOverflowedUintDowncast(224, value);
        }
        return uint224(value);
    }

    /**
     * @dev Returns the downcasted uint216 from uint256, reverting on
     * overflow (when the input is greater than largest uint216).
     *
     * Counterpart to Solidity's `uint216` operator.
     *
     * Requirements:
     *
     * - input must fit into 216 bits
     */
    function toUint216(uint256 value) internal pure returns (uint216) {
        if (value > type(uint216).max) {
            revert SafeCastOverflowedUintDowncast(216, value);
        }
        return uint216(value);
    }

    /**
     * @dev Returns the downcasted uint208 from uint256, reverting on
     * overflow (when the input is greater than largest uint208).
     *
     * Counterpart to Solidity's `uint208` operator.
     *
     * Requirements:
     *
     * - input must fit into 208 bits
     */
    function toUint208(uint256 value) internal pure returns (uint208) {
        if (value > type(uint208).max) {
            revert SafeCastOverflowedUintDowncast(208, value);
        }
        return uint208(value);
    }

    /**
     * @dev Returns the downcasted uint200 from uint256, reverting on
     * overflow (when the input is greater than largest uint200).
     *
     * Counterpart to Solidity's `uint200` operator.
     *
     * Requirements:
     *
     * - input must fit into 200 bits
     */
    function toUint200(uint256 value) internal pure returns (uint200) {
        if (value > type(uint200).max) {
            revert SafeCastOverflowedUintDowncast(200, value);
        }
        return uint200(value);
    }

    /**
     * @dev Returns the downcasted uint192 from uint256, reverting on
     * overflow (when the input is greater than largest uint192).
     *
     * Counterpart to Solidity's `uint192` operator.
     *
     * Requirements:
     *
     * - input must fit into 192 bits
     */
    function toUint192(uint256 value) internal pure returns (uint192) {
        if (value > type(uint192).max) {
            revert SafeCastOverflowedUintDowncast(192, value);
        }
        return uint192(value);
    }

    /**
     * @dev Returns the downcasted uint184 from uint256, reverting on
     * overflow (when the input is greater than largest uint184).
     *
     * Counterpart to Solidity's `uint184` operator.
     *
     * Requirements:
     *
     * - input must fit into 184 bits
     */
    function toUint184(uint256 value) internal pure returns (uint184) {
        if (value > type(uint184).max) {
            revert SafeCastOverflowedUintDowncast(184, value);
        }
        return uint184(value);
    }

    /**
     * @dev Returns the downcasted uint176 from uint256, reverting on
     * overflow (when the input is greater than largest uint176).
     *
     * Counterpart to Solidity's `uint176` operator.
     *
     * Requirements:
     *
     * - input must fit into 176 bits
     */
    function toUint176(uint256 value) internal pure returns (uint176) {
        if (value > type(uint176).max) {
            revert SafeCastOverflowedUintDowncast(176, value);
        }
        return uint176(value);
    }

    /**
     * @dev Returns the downcasted uint168 from uint256, reverting on
     * overflow (when the input is greater than largest uint168).
     *
     * Counterpart to Solidity's `uint168` operator.
     *
     * Requirements:
     *
     * - input must fit into 168 bits
     */
    function toUint168(uint256 value) internal pure returns (uint168) {
        if (value > type(uint168).max) {
            revert SafeCastOverflowedUintDowncast(168, value);
        }
        return uint168(value);
    }

    /**
     * @dev Returns the downcasted uint160 from uint256, reverting on
     * overflow (when the input is greater than largest uint160).
     *
     * Counterpart to Solidity's `uint160` operator.
     *
     * Requirements:
     *
     * - input must fit into 160 bits
     */
    function toUint160(uint256 value) internal pure returns (uint160) {
        if (value > type(uint160).max) {
            revert SafeCastOverflowedUintDowncast(160, value);
        }
        return uint160(value);
    }

    /**
     * @dev Returns the downcasted uint152 from uint256, reverting on
     * overflow (when the input is greater than largest uint152).
     *
     * Counterpart to Solidity's `uint152` operator.
     *
     * Requirements:
     *
     * - input must fit into 152 bits
     */
    function toUint152(uint256 value) internal pure returns (uint152) {
        if (value > type(uint152).max) {
            revert SafeCastOverflowedUintDowncast(152, value);
        }
        return uint152(value);
    }

    /**
     * @dev Returns the downcasted uint144 from uint256, reverting on
     * overflow (when the input is greater than largest uint144).
     *
     * Counterpart to Solidity's `uint144` operator.
     *
     * Requirements:
     *
     * - input must fit into 144 bits
     */
    function toUint144(uint256 value) internal pure returns (uint144) {
        if (value > type(uint144).max) {
            revert SafeCastOverflowedUintDowncast(144, value);
        }
        return uint144(value);
    }

    /**
     * @dev Returns the downcasted uint136 from uint256, reverting on
     * overflow (when the input is greater than largest uint136).
     *
     * Counterpart to Solidity's `uint136` operator.
     *
     * Requirements:
     *
     * - input must fit into 136 bits
     */
    function toUint136(uint256 value) internal pure returns (uint136) {
        if (value > type(uint136).max) {
            revert SafeCastOverflowedUintDowncast(136, value);
        }
        return uint136(value);
    }

    /**
     * @dev Returns the downcasted uint128 from uint256, reverting on
     * overflow (when the input is greater than largest uint128).
     *
     * Counterpart to Solidity's `uint128` operator.
     *
     * Requirements:
     *
     * - input must fit into 128 bits
     */
    function toUint128(uint256 value) internal pure returns (uint128) {
        if (value > type(uint128).max) {
            revert SafeCastOverflowedUintDowncast(128, value);
        }
        return uint128(value);
    }

    /**
     * @dev Returns the downcasted uint120 from uint256, reverting on
     * overflow (when the input is greater than largest uint120).
     *
     * Counterpart to Solidity's `uint120` operator.
     *
     * Requirements:
     *
     * - input must fit into 120 bits
     */
    function toUint120(uint256 value) internal pure returns (uint120) {
        if (value > type(uint120).max) {
            revert SafeCastOverflowedUintDowncast(120, value);
        }
        return uint120(value);
    }

    /**
     * @dev Returns the downcasted uint112 from uint256, reverting on
     * overflow (when the input is greater than largest uint112).
     *
     * Counterpart to Solidity's `uint112` operator.
     *
     * Requirements:
     *
     * - input must fit into 112 bits
     */
    function toUint112(uint256 value) internal pure returns (uint112) {
        if (value > type(uint112).max) {
            revert SafeCastOverflowedUintDowncast(112, value);
        }
        return uint112(value);
    }

    /**
     * @dev Returns the downcasted uint104 from uint256, reverting on
     * overflow (when the input is greater than largest uint104).
     *
     * Counterpart to Solidity's `uint104` operator.
     *
     * Requirements:
     *
     * - input must fit into 104 bits
     */
    function toUint104(uint256 value) internal pure returns (uint104) {
        if (value > type(uint104).max) {
            revert SafeCastOverflowedUintDowncast(104, value);
        }
        return uint104(value);
    }

    /**
     * @dev Returns the downcasted uint96 from uint256, reverting on
     * overflow (when the input is greater than largest uint96).
     *
     * Counterpart to Solidity's `uint96` operator.
     *
     * Requirements:
     *
     * - input must fit into 96 bits
     */
    function toUint96(uint256 value) internal pure returns (uint96) {
        if (value > type(uint96).max) {
            revert SafeCastOverflowedUintDowncast(96, value);
        }
        return uint96(value);
    }

    /**
     * @dev Returns the downcasted uint88 from uint256, reverting on
     * overflow (when the input is greater than largest uint88).
     *
     * Counterpart to Solidity's `uint88` operator.
     *
     * Requirements:
     *
     * - input must fit into 88 bits
     */
    function toUint88(uint256 value) internal pure returns (uint88) {
        if (value > type(uint88).max) {
            revert SafeCastOverflowedUintDowncast(88, value);
        }
        return uint88(value);
    }

    /**
     * @dev Returns the downcasted uint80 from uint256, reverting on
     * overflow (when the input is greater than largest uint80).
     *
     * Counterpart to Solidity's `uint80` operator.
     *
     * Requirements:
     *
     * - input must fit into 80 bits
     */
    function toUint80(uint256 value) internal pure returns (uint80) {
        if (value > type(uint80).max) {
            revert SafeCastOverflowedUintDowncast(80, value);
        }
        return uint80(value);
    }

    /**
     * @dev Returns the downcasted uint72 from uint256, reverting on
     * overflow (when the input is greater than largest uint72).
     *
     * Counterpart to Solidity's `uint72` operator.
     *
     * Requirements:
     *
     * - input must fit into 72 bits
     */
    function toUint72(uint256 value) internal pure returns (uint72) {
        if (value > type(uint72).max) {
            revert SafeCastOverflowedUintDowncast(72, value);
        }
        return uint72(value);
    }

    /**
     * @dev Returns the downcasted uint64 from uint256, reverting on
     * overflow (when the input is greater than largest uint64).
     *
     * Counterpart to Solidity's `uint64` operator.
     *
     * Requirements:
     *
     * - input must fit into 64 bits
     */
    function toUint64(uint256 value) internal pure returns (uint64) {
        if (value > type(uint64).max) {
            revert SafeCastOverflowedUintDowncast(64, value);
        }
        return uint64(value);
    }

    /**
     * @dev Returns the downcasted uint56 from uint256, reverting on
     * overflow (when the input is greater than largest uint56).
     *
     * Counterpart to Solidity's `uint56` operator.
     *
     * Requirements:
     *
     * - input must fit into 56 bits
     */
    function toUint56(uint256 value) internal pure returns (uint56) {
        if (value > type(uint56).max) {
            revert SafeCastOverflowedUintDowncast(56, value);
        }
        return uint56(value);
    }

    /**
     * @dev Returns the downcasted uint48 from uint256, reverting on
     * overflow (when the input is greater than largest uint48).
     *
     * Counterpart to Solidity's `uint48` operator.
     *
     * Requirements:
     *
     * - input must fit into 48 bits
     */
    function toUint48(uint256 value) internal pure returns (uint48) {
        if (value > type(uint48).max) {
            revert SafeCastOverflowedUintDowncast(48, value);
        }
        return uint48(value);
    }

    /**
     * @dev Returns the downcasted uint40 from uint256, reverting on
     * overflow (when the input is greater than largest uint40).
     *
     * Counterpart to Solidity's `uint40` operator.
     *
     * Requirements:
     *
     * - input must fit into 40 bits
     */
    function toUint40(uint256 value) internal pure returns (uint40) {
        if (value > type(uint40).max) {
            revert SafeCastOverflowedUintDowncast(40, value);
        }
        return uint40(value);
    }

    /**
     * @dev Returns the downcasted uint32 from uint256, reverting on
     * overflow (when the input is greater than largest uint32).
     *
     * Counterpart to Solidity's `uint32` operator.
     *
     * Requirements:
     *
     * - input must fit into 32 bits
     */
    function toUint32(uint256 value) internal pure returns (uint32) {
        if (value > type(uint32).max) {
            revert SafeCastOverflowedUintDowncast(32, value);
        }
        return uint32(value);
    }

    /**
     * @dev Returns the downcasted uint24 from uint256, reverting on
     * overflow (when the input is greater than largest uint24).
     *
     * Counterpart to Solidity's `uint24` operator.
     *
     * Requirements:
     *
     * - input must fit into 24 bits
     */
    function toUint24(uint256 value) internal pure returns (uint24) {
        if (value > type(uint24).max) {
            revert SafeCastOverflowedUintDowncast(24, value);
        }
        return uint24(value);
    }

    /**
     * @dev Returns the downcasted uint16 from uint256, reverting on
     * overflow (when the input is greater than largest uint16).
     *
     * Counterpart to Solidity's `uint16` operator.
     *
     * Requirements:
     *
     * - input must fit into 16 bits
     */
    function toUint16(uint256 value) internal pure returns (uint16) {
        if (value > type(uint16).max) {
            revert SafeCastOverflowedUintDowncast(16, value);
        }
        return uint16(value);
    }

    /**
     * @dev Returns the downcasted uint8 from uint256, reverting on
     * overflow (when the input is greater than largest uint8).
     *
     * Counterpart to Solidity's `uint8` operator.
     *
     * Requirements:
     *
     * - input must fit into 8 bits
     */
    function toUint8(uint256 value) internal pure returns (uint8) {
        if (value > type(uint8).max) {
            revert SafeCastOverflowedUintDowncast(8, value);
        }
        return uint8(value);
    }

    /**
     * @dev Converts a signed int256 into an unsigned uint256.
     *
     * Requirements:
     *
     * - input must be greater than or equal to 0.
     */
    function toUint256(int256 value) internal pure returns (uint256) {
        if (value < 0) {
            revert SafeCastOverflowedIntToUint(value);
        }
        return uint256(value);
    }

    /**
     * @dev Returns the downcasted int248 from int256, reverting on
     * overflow (when the input is less than smallest int248 or
     * greater than largest int248).
     *
     * Counterpart to Solidity's `int248` operator.
     *
     * Requirements:
     *
     * - input must fit into 248 bits
     */
    function toInt248(int256 value) internal pure returns (int248 downcasted) {
        downcasted = int248(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(248, value);
        }
    }

    /**
     * @dev Returns the downcasted int240 from int256, reverting on
     * overflow (when the input is less than smallest int240 or
     * greater than largest int240).
     *
     * Counterpart to Solidity's `int240` operator.
     *
     * Requirements:
     *
     * - input must fit into 240 bits
     */
    function toInt240(int256 value) internal pure returns (int240 downcasted) {
        downcasted = int240(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(240, value);
        }
    }

    /**
     * @dev Returns the downcasted int232 from int256, reverting on
     * overflow (when the input is less than smallest int232 or
     * greater than largest int232).
     *
     * Counterpart to Solidity's `int232` operator.
     *
     * Requirements:
     *
     * - input must fit into 232 bits
     */
    function toInt232(int256 value) internal pure returns (int232 downcasted) {
        downcasted = int232(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(232, value);
        }
    }

    /**
     * @dev Returns the downcasted int224 from int256, reverting on
     * overflow (when the input is less than smallest int224 or
     * greater than largest int224).
     *
     * Counterpart to Solidity's `int224` operator.
     *
     * Requirements:
     *
     * - input must fit into 224 bits
     */
    function toInt224(int256 value) internal pure returns (int224 downcasted) {
        downcasted = int224(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(224, value);
        }
    }

    /**
     * @dev Returns the downcasted int216 from int256, reverting on
     * overflow (when the input is less than smallest int216 or
     * greater than largest int216).
     *
     * Counterpart to Solidity's `int216` operator.
     *
     * Requirements:
     *
     * - input must fit into 216 bits
     */
    function toInt216(int256 value) internal pure returns (int216 downcasted) {
        downcasted = int216(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(216, value);
        }
    }

    /**
     * @dev Returns the downcasted int208 from int256, reverting on
     * overflow (when the input is less than smallest int208 or
     * greater than largest int208).
     *
     * Counterpart to Solidity's `int208` operator.
     *
     * Requirements:
     *
     * - input must fit into 208 bits
     */
    function toInt208(int256 value) internal pure returns (int208 downcasted) {
        downcasted = int208(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(208, value);
        }
    }

    /**
     * @dev Returns the downcasted int200 from int256, reverting on
     * overflow (when the input is less than smallest int200 or
     * greater than largest int200).
     *
     * Counterpart to Solidity's `int200` operator.
     *
     * Requirements:
     *
     * - input must fit into 200 bits
     */
    function toInt200(int256 value) internal pure returns (int200 downcasted) {
        downcasted = int200(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(200, value);
        }
    }

    /**
     * @dev Returns the downcasted int192 from int256, reverting on
     * overflow (when the input is less than smallest int192 or
     * greater than largest int192).
     *
     * Counterpart to Solidity's `int192` operator.
     *
     * Requirements:
     *
     * - input must fit into 192 bits
     */
    function toInt192(int256 value) internal pure returns (int192 downcasted) {
        downcasted = int192(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(192, value);
        }
    }

    /**
     * @dev Returns the downcasted int184 from int256, reverting on
     * overflow (when the input is less than smallest int184 or
     * greater than largest int184).
     *
     * Counterpart to Solidity's `int184` operator.
     *
     * Requirements:
     *
     * - input must fit into 184 bits
     */
    function toInt184(int256 value) internal pure returns (int184 downcasted) {
        downcasted = int184(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(184, value);
        }
    }

    /**
     * @dev Returns the downcasted int176 from int256, reverting on
     * overflow (when the input is less than smallest int176 or
     * greater than largest int176).
     *
     * Counterpart to Solidity's `int176` operator.
     *
     * Requirements:
     *
     * - input must fit into 176 bits
     */
    function toInt176(int256 value) internal pure returns (int176 downcasted) {
        downcasted = int176(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(176, value);
        }
    }

    /**
     * @dev Returns the downcasted int168 from int256, reverting on
     * overflow (when the input is less than smallest int168 or
     * greater than largest int168).
     *
     * Counterpart to Solidity's `int168` operator.
     *
     * Requirements:
     *
     * - input must fit into 168 bits
     */
    function toInt168(int256 value) internal pure returns (int168 downcasted) {
        downcasted = int168(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(168, value);
        }
    }

    /**
     * @dev Returns the downcasted int160 from int256, reverting on
     * overflow (when the input is less than smallest int160 or
     * greater than largest int160).
     *
     * Counterpart to Solidity's `int160` operator.
     *
     * Requirements:
     *
     * - input must fit into 160 bits
     */
    function toInt160(int256 value) internal pure returns (int160 downcasted) {
        downcasted = int160(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(160, value);
        }
    }

    /**
     * @dev Returns the downcasted int152 from int256, reverting on
     * overflow (when the input is less than smallest int152 or
     * greater than largest int152).
     *
     * Counterpart to Solidity's `int152` operator.
     *
     * Requirements:
     *
     * - input must fit into 152 bits
     */
    function toInt152(int256 value) internal pure returns (int152 downcasted) {
        downcasted = int152(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(152, value);
        }
    }

    /**
     * @dev Returns the downcasted int144 from int256, reverting on
     * overflow (when the input is less than smallest int144 or
     * greater than largest int144).
     *
     * Counterpart to Solidity's `int144` operator.
     *
     * Requirements:
     *
     * - input must fit into 144 bits
     */
    function toInt144(int256 value) internal pure returns (int144 downcasted) {
        downcasted = int144(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(144, value);
        }
    }

    /**
     * @dev Returns the downcasted int136 from int256, reverting on
     * overflow (when the input is less than smallest int136 or
     * greater than largest int136).
     *
     * Counterpart to Solidity's `int136` operator.
     *
     * Requirements:
     *
     * - input must fit into 136 bits
     */
    function toInt136(int256 value) internal pure returns (int136 downcasted) {
        downcasted = int136(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(136, value);
        }
    }

    /**
     * @dev Returns the downcasted int128 from int256, reverting on
     * overflow (when the input is less than smallest int128 or
     * greater than largest int128).
     *
     * Counterpart to Solidity's `int128` operator.
     *
     * Requirements:
     *
     * - input must fit into 128 bits
     */
    function toInt128(int256 value) internal pure returns (int128 downcasted) {
        downcasted = int128(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(128, value);
        }
    }

    /**
     * @dev Returns the downcasted int120 from int256, reverting on
     * overflow (when the input is less than smallest int120 or
     * greater than largest int120).
     *
     * Counterpart to Solidity's `int120` operator.
     *
     * Requirements:
     *
     * - input must fit into 120 bits
     */
    function toInt120(int256 value) internal pure returns (int120 downcasted) {
        downcasted = int120(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(120, value);
        }
    }

    /**
     * @dev Returns the downcasted int112 from int256, reverting on
     * overflow (when the input is less than smallest int112 or
     * greater than largest int112).
     *
     * Counterpart to Solidity's `int112` operator.
     *
     * Requirements:
     *
     * - input must fit into 112 bits
     */
    function toInt112(int256 value) internal pure returns (int112 downcasted) {
        downcasted = int112(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(112, value);
        }
    }

    /**
     * @dev Returns the downcasted int104 from int256, reverting on
     * overflow (when the input is less than smallest int104 or
     * greater than largest int104).
     *
     * Counterpart to Solidity's `int104` operator.
     *
     * Requirements:
     *
     * - input must fit into 104 bits
     */
    function toInt104(int256 value) internal pure returns (int104 downcasted) {
        downcasted = int104(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(104, value);
        }
    }

    /**
     * @dev Returns the downcasted int96 from int256, reverting on
     * overflow (when the input is less than smallest int96 or
     * greater than largest int96).
     *
     * Counterpart to Solidity's `int96` operator.
     *
     * Requirements:
     *
     * - input must fit into 96 bits
     */
    function toInt96(int256 value) internal pure returns (int96 downcasted) {
        downcasted = int96(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(96, value);
        }
    }

    /**
     * @dev Returns the downcasted int88 from int256, reverting on
     * overflow (when the input is less than smallest int88 or
     * greater than largest int88).
     *
     * Counterpart to Solidity's `int88` operator.
     *
     * Requirements:
     *
     * - input must fit into 88 bits
     */
    function toInt88(int256 value) internal pure returns (int88 downcasted) {
        downcasted = int88(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(88, value);
        }
    }

    /**
     * @dev Returns the downcasted int80 from int256, reverting on
     * overflow (when the input is less than smallest int80 or
     * greater than largest int80).
     *
     * Counterpart to Solidity's `int80` operator.
     *
     * Requirements:
     *
     * - input must fit into 80 bits
     */
    function toInt80(int256 value) internal pure returns (int80 downcasted) {
        downcasted = int80(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(80, value);
        }
    }

    /**
     * @dev Returns the downcasted int72 from int256, reverting on
     * overflow (when the input is less than smallest int72 or
     * greater than largest int72).
     *
     * Counterpart to Solidity's `int72` operator.
     *
     * Requirements:
     *
     * - input must fit into 72 bits
     */
    function toInt72(int256 value) internal pure returns (int72 downcasted) {
        downcasted = int72(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(72, value);
        }
    }

    /**
     * @dev Returns the downcasted int64 from int256, reverting on
     * overflow (when the input is less than smallest int64 or
     * greater than largest int64).
     *
     * Counterpart to Solidity's `int64` operator.
     *
     * Requirements:
     *
     * - input must fit into 64 bits
     */
    function toInt64(int256 value) internal pure returns (int64 downcasted) {
        downcasted = int64(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(64, value);
        }
    }

    /**
     * @dev Returns the downcasted int56 from int256, reverting on
     * overflow (when the input is less than smallest int56 or
     * greater than largest int56).
     *
     * Counterpart to Solidity's `int56` operator.
     *
     * Requirements:
     *
     * - input must fit into 56 bits
     */
    function toInt56(int256 value) internal pure returns (int56 downcasted) {
        downcasted = int56(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(56, value);
        }
    }

    /**
     * @dev Returns the downcasted int48 from int256, reverting on
     * overflow (when the input is less than smallest int48 or
     * greater than largest int48).
     *
     * Counterpart to Solidity's `int48` operator.
     *
     * Requirements:
     *
     * - input must fit into 48 bits
     */
    function toInt48(int256 value) internal pure returns (int48 downcasted) {
        downcasted = int48(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(48, value);
        }
    }

    /**
     * @dev Returns the downcasted int40 from int256, reverting on
     * overflow (when the input is less than smallest int40 or
     * greater than largest int40).
     *
     * Counterpart to Solidity's `int40` operator.
     *
     * Requirements:
     *
     * - input must fit into 40 bits
     */
    function toInt40(int256 value) internal pure returns (int40 downcasted) {
        downcasted = int40(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(40, value);
        }
    }

    /**
     * @dev Returns the downcasted int32 from int256, reverting on
     * overflow (when the input is less than smallest int32 or
     * greater than largest int32).
     *
     * Counterpart to Solidity's `int32` operator.
     *
     * Requirements:
     *
     * - input must fit into 32 bits
     */
    function toInt32(int256 value) internal pure returns (int32 downcasted) {
        downcasted = int32(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(32, value);
        }
    }

    /**
     * @dev Returns the downcasted int24 from int256, reverting on
     * overflow (when the input is less than smallest int24 or
     * greater than largest int24).
     *
     * Counterpart to Solidity's `int24` operator.
     *
     * Requirements:
     *
     * - input must fit into 24 bits
     */
    function toInt24(int256 value) internal pure returns (int24 downcasted) {
        downcasted = int24(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(24, value);
        }
    }

    /**
     * @dev Returns the downcasted int16 from int256, reverting on
     * overflow (when the input is less than smallest int16 or
     * greater than largest int16).
     *
     * Counterpart to Solidity's `int16` operator.
     *
     * Requirements:
     *
     * - input must fit into 16 bits
     */
    function toInt16(int256 value) internal pure returns (int16 downcasted) {
        downcasted = int16(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(16, value);
        }
    }

    /**
     * @dev Returns the downcasted int8 from int256, reverting on
     * overflow (when the input is less than smallest int8 or
     * greater than largest int8).
     *
     * Counterpart to Solidity's `int8` operator.
     *
     * Requirements:
     *
     * - input must fit into 8 bits
     */
    function toInt8(int256 value) internal pure returns (int8 downcasted) {
        downcasted = int8(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(8, value);
        }
    }

    /**
     * @dev Converts an unsigned uint256 into a signed int256.
     *
     * Requirements:
     *
     * - input must be less than or equal to maxInt256.
     */
    function toInt256(uint256 value) internal pure returns (int256) {
        // Note: Unsafe cast below is okay because `type(int256).max` is guaranteed to be positive
        if (value > uint256(type(int256).max)) {
            revert SafeCastOverflowedUintToInt(value);
        }
        return int256(value);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/math/SignedMath.sol)

pragma solidity ^0.8.20;

/**
 * @dev Standard signed math utilities missing in the Solidity language.
 */
library SignedMath {
    /**
     * @dev Returns the largest of two signed numbers.
     */
    function max(int256 a, int256 b) internal pure returns (int256) {
        return a > b ? a : b;
    }

    /**
     * @dev Returns the smallest of two signed numbers.
     */
    function min(int256 a, int256 b) internal pure returns (int256) {
        return a < b ? a : b;
    }

    /**
     * @dev Returns the average of two signed numbers without overflow.
     * The result is rounded towards zero.
     */
    function average(int256 a, int256 b) internal pure returns (int256) {
        // Formula from the book "Hacker's Delight"
        int256 x = (a & b) + ((a ^ b) >> 1);
        return x + (int256(uint256(x) >> 255) & (a ^ b));
    }

    /**
     * @dev Returns the absolute unsigned value of a signed value.
     */
    function abs(int256 n) internal pure returns (uint256) {
        unchecked {
            // must be unchecked in order to support `n = type(int256).min`
            return uint256(n >= 0 ? n : -n);
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/Nonces.sol)
pragma solidity ^0.8.20;

/**
 * @dev Provides tracking nonces for addresses. Nonces will only increment.
 */
abstract contract Nonces {
    /**
     * @dev The nonce used for an `account` is not the expected current nonce.
     */
    error InvalidAccountNonce(address account, uint256 currentNonce);

    mapping(address account => uint256) private _nonces;

    /**
     * @dev Returns the next unused nonce for an address.
     */
    function nonces(address owner) public view virtual returns (uint256) {
        return _nonces[owner];
    }

    /**
     * @dev Consumes a nonce.
     *
     * Returns the current value and increments nonce.
     */
    function _useNonce(address owner) internal virtual returns (uint256) {
        // For each account, the nonce has an initial value of 0, can only be incremented by one, and cannot be
        // decremented or reset. This guarantees that the nonce never overflows.
        unchecked {
            // It is important to do x++ and not ++x here.
            return _nonces[owner]++;
        }
    }

    /**
     * @dev Same as {_useNonce} but checking that `nonce` is the next valid for `owner`.
     */
    function _useCheckedNonce(address owner, uint256 nonce) internal virtual {
        uint256 current = _useNonce(owner);
        if (nonce != current) {
            revert InvalidAccountNonce(owner, current);
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/ShortStrings.sol)

pragma solidity ^0.8.20;

import {StorageSlot} from "./StorageSlot.sol";

// | string  | 0xAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA   |
// | length  | 0x                                                              BB |
type ShortString is bytes32;

/**
 * @dev This library provides functions to convert short memory strings
 * into a `ShortString` type that can be used as an immutable variable.
 *
 * Strings of arbitrary length can be optimized using this library if
 * they are short enough (up to 31 bytes) by packing them with their
 * length (1 byte) in a single EVM word (32 bytes). Additionally, a
 * fallback mechanism can be used for every other case.
 *
 * Usage example:
 *
 * ```solidity
 * contract Named {
 *     using ShortStrings for *;
 *
 *     ShortString private immutable _name;
 *     string private _nameFallback;
 *
 *     constructor(string memory contractName) {
 *         _name = contractName.toShortStringWithFallback(_nameFallback);
 *     }
 *
 *     function name() external view returns (string memory) {
 *         return _name.toStringWithFallback(_nameFallback);
 *     }
 * }
 * ```
 */
library ShortStrings {
    // Used as an identifier for strings longer than 31 bytes.
    bytes32 private constant FALLBACK_SENTINEL = 0x00000000000000000000000000000000000000000000000000000000000000FF;

    error StringTooLong(string str);
    error InvalidShortString();

    /**
     * @dev Encode a string of at most 31 chars into a `ShortString`.
     *
     * This will trigger a `StringTooLong` error is the input string is too long.
     */
    function toShortString(string memory str) internal pure returns (ShortString) {
        bytes memory bstr = bytes(str);
        if (bstr.length > 31) {
            revert StringTooLong(str);
        }
        return ShortString.wrap(bytes32(uint256(bytes32(bstr)) | bstr.length));
    }

    /**
     * @dev Decode a `ShortString` back to a "normal" string.
     */
    function toString(ShortString sstr) internal pure returns (string memory) {
        uint256 len = byteLength(sstr);
        // using `new string(len)` would work locally but is not memory safe.
        string memory str = new string(32);
        /// @solidity memory-safe-assembly
        assembly {
            mstore(str, len)
            mstore(add(str, 0x20), sstr)
        }
        return str;
    }

    /**
     * @dev Return the length of a `ShortString`.
     */
    function byteLength(ShortString sstr) internal pure returns (uint256) {
        uint256 result = uint256(ShortString.unwrap(sstr)) & 0xFF;
        if (result > 31) {
            revert InvalidShortString();
        }
        return result;
    }

    /**
     * @dev Encode a string into a `ShortString`, or write it to storage if it is too long.
     */
    function toShortStringWithFallback(string memory value, string storage store) internal returns (ShortString) {
        if (bytes(value).length < 32) {
            return toShortString(value);
        } else {
            StorageSlot.getStringSlot(store).value = value;
            return ShortString.wrap(FALLBACK_SENTINEL);
        }
    }

    /**
     * @dev Decode a string that was encoded to `ShortString` or written to storage using {setWithFallback}.
     */
    function toStringWithFallback(ShortString value, string storage store) internal pure returns (string memory) {
        if (ShortString.unwrap(value) != FALLBACK_SENTINEL) {
            return toString(value);
        } else {
            return store;
        }
    }

    /**
     * @dev Return the length of a string that was encoded to `ShortString` or written to storage using
     * {setWithFallback}.
     *
     * WARNING: This will return the "byte length" of the string. This may not reflect the actual length in terms of
     * actual characters as the UTF-8 encoding of a single character can span over multiple bytes.
     */
    function byteLengthWithFallback(ShortString value, string storage store) internal view returns (uint256) {
        if (ShortString.unwrap(value) != FALLBACK_SENTINEL) {
            return byteLength(value);
        } else {
            return bytes(store).length;
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/StorageSlot.sol)
// This file was procedurally generated from scripts/generate/templates/StorageSlot.js.

pragma solidity ^0.8.20;

/**
 * @dev Library for reading and writing primitive types to specific storage slots.
 *
 * Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts.
 * This library helps with reading and writing to such slots without the need for inline assembly.
 *
 * The functions in this library return Slot structs that contain a `value` member that can be used to read or write.
 *
 * Example usage to set ERC1967 implementation slot:
 * ```solidity
 * contract ERC1967 {
 *     bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
 *
 *     function _getImplementation() internal view returns (address) {
 *         return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
 *     }
 *
 *     function _setImplementation(address newImplementation) internal {
 *         require(newImplementation.code.length > 0);
 *         StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
 *     }
 * }
 * ```
 */
library StorageSlot {
    struct AddressSlot {
        address value;
    }

    struct BooleanSlot {
        bool value;
    }

    struct Bytes32Slot {
        bytes32 value;
    }

    struct Uint256Slot {
        uint256 value;
    }

    struct StringSlot {
        string value;
    }

    struct BytesSlot {
        bytes value;
    }

    /**
     * @dev Returns an `AddressSlot` with member `value` located at `slot`.
     */
    function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `BooleanSlot` with member `value` located at `slot`.
     */
    function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `Bytes32Slot` with member `value` located at `slot`.
     */
    function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `Uint256Slot` with member `value` located at `slot`.
     */
    function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `StringSlot` with member `value` located at `slot`.
     */
    function getStringSlot(bytes32 slot) internal pure returns (StringSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `StringSlot` representation of the string storage pointer `store`.
     */
    function getStringSlot(string storage store) internal pure returns (StringSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := store.slot
        }
    }

    /**
     * @dev Returns an `BytesSlot` with member `value` located at `slot`.
     */
    function getBytesSlot(bytes32 slot) internal pure returns (BytesSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `BytesSlot` representation of the bytes storage pointer `store`.
     */
    function getBytesSlot(bytes storage store) internal pure returns (BytesSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := store.slot
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/Strings.sol)

pragma solidity ^0.8.20;

import {Math} from "./math/Math.sol";
import {SignedMath} from "./math/SignedMath.sol";

/**
 * @dev String operations.
 */
library Strings {
    bytes16 private constant HEX_DIGITS = "0123456789abcdef";
    uint8 private constant ADDRESS_LENGTH = 20;

    /**
     * @dev The `value` string doesn't fit in the specified `length`.
     */
    error StringsInsufficientHexLength(uint256 value, uint256 length);

    /**
     * @dev Converts a `uint256` to its ASCII `string` decimal representation.
     */
    function toString(uint256 value) internal pure returns (string memory) {
        unchecked {
            uint256 length = Math.log10(value) + 1;
            string memory buffer = new string(length);
            uint256 ptr;
            /// @solidity memory-safe-assembly
            assembly {
                ptr := add(buffer, add(32, length))
            }
            while (true) {
                ptr--;
                /// @solidity memory-safe-assembly
                assembly {
                    mstore8(ptr, byte(mod(value, 10), HEX_DIGITS))
                }
                value /= 10;
                if (value == 0) break;
            }
            return buffer;
        }
    }

    /**
     * @dev Converts a `int256` to its ASCII `string` decimal representation.
     */
    function toStringSigned(int256 value) internal pure returns (string memory) {
        return string.concat(value < 0 ? "-" : "", toString(SignedMath.abs(value)));
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
     */
    function toHexString(uint256 value) internal pure returns (string memory) {
        unchecked {
            return toHexString(value, Math.log256(value) + 1);
        }
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
     */
    function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
        uint256 localValue = value;
        bytes memory buffer = new bytes(2 * length + 2);
        buffer[0] = "0";
        buffer[1] = "x";
        for (uint256 i = 2 * length + 1; i > 1; --i) {
            buffer[i] = HEX_DIGITS[localValue & 0xf];
            localValue >>= 4;
        }
        if (localValue != 0) {
            revert StringsInsufficientHexLength(value, length);
        }
        return string(buffer);
    }

    /**
     * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal
     * representation.
     */
    function toHexString(address addr) internal pure returns (string memory) {
        return toHexString(uint256(uint160(addr)), ADDRESS_LENGTH);
    }

    /**
     * @dev Returns true if the two strings are equal.
     */
    function equal(string memory a, string memory b) internal pure returns (bool) {
        return bytes(a).length == bytes(b).length && keccak256(bytes(a)) == keccak256(bytes(b));
    }
}

{
  "viaIR": true,
  "evmVersion": "cancun",
  "optimizer": {
    "enabled": true,
    "runs": 9999,
    "details": {
      "yulDetails": {
        "optimizerSteps": "dhfoDgvulfnTUtnIf [ xa[r]EscLM cCTUtTOntnfDIul Lcul Vcul [j] Tpeul xa[rul] xa[r]cL gvif CTUca[r]LSsTFOtfDnca[r]Iulc ] jmul[jul] VcTOcul jmul : fDnTOcmu"
      }
    }
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

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IVault","name":"vault","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"AmpUpdateAlreadyStarted","type":"error"},{"inputs":[],"name":"AmpUpdateDurationTooShort","type":"error"},{"inputs":[],"name":"AmpUpdateNotStarted","type":"error"},{"inputs":[],"name":"AmpUpdateRateTooFast","type":"error"},{"inputs":[],"name":"AmplificationFactorTooHigh","type":"error"},{"inputs":[],"name":"AmplificationFactorTooLow","type":"error"},{"inputs":[],"name":"ECDSAInvalidSignature","type":"error"},{"inputs":[{"internalType":"uint256","name":"length","type":"uint256"}],"name":"ECDSAInvalidSignatureLength","type":"error"},{"inputs":[{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"ECDSAInvalidSignatureS","type":"error"},{"inputs":[{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"ERC2612ExpiredSignature","type":"error"},{"inputs":[{"internalType":"address","name":"signer","type":"address"},{"internalType":"address","name":"owner","type":"address"}],"name":"ERC2612InvalidSigner","type":"error"},{"inputs":[{"internalType":"address","name":"account","type":"address"},{"internalType":"uint256","name":"currentNonce","type":"uint256"}],"name":"InvalidAccountNonce","type":"error"},{"inputs":[],"name":"InvalidShortString","type":"error"},{"inputs":[{"internalType":"uint8","name":"bits","type":"uint8"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"SafeCastOverflowedUintDowncast","type":"error"},{"inputs":[{"internalType":"address","name":"sender","type":"address"}],"name":"SenderIsNotVault","type":"error"},{"inputs":[],"name":"SenderNotAllowed","type":"error"},{"inputs":[],"name":"StableComputeBalanceDidNotConverge","type":"error"},{"inputs":[],"name":"StableInvariantDidNotConverge","type":"error"},{"inputs":[{"internalType":"string","name":"str","type":"string"}],"name":"StringTooLong","type":"error"},{"inputs":[],"name":"ZeroDivision","type":"error"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"startValue","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"endValue","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"startTime","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"endTime","type":"uint256"}],"name":"AmpUpdateStarted","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"currentValue","type":"uint256"}],"name":"AmpUpdateStopped","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[],"name":"EIP712DomainChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[],"name":"DOMAIN_SEPARATOR","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"PERMIT_TYPEHASH","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256[]","name":"balancesLiveScaled18","type":"uint256[]"},{"internalType":"uint256","name":"tokenInIndex","type":"uint256"},{"internalType":"uint256","name":"invariantRatio","type":"uint256"}],"name":"computeBalance","outputs":[{"internalType":"uint256","name":"newBalance","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256[]","name":"balancesLiveScaled18","type":"uint256[]"},{"internalType":"enum Rounding","name":"rounding","type":"uint8"}],"name":"computeInvariant","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"eip712Domain","outputs":[{"internalType":"bytes1","name":"fields","type":"bytes1"},{"internalType":"string","name":"name","type":"string"},{"internalType":"string","name":"version","type":"string"},{"internalType":"uint256","name":"chainId","type":"uint256"},{"internalType":"address","name":"verifyingContract","type":"address"},{"internalType":"bytes32","name":"salt","type":"bytes32"},{"internalType":"uint256[]","name":"extensions","type":"uint256[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"emitApproval","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"emitTransfer","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"selector","type":"bytes4"}],"name":"getActionId","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getAggregateFeePercentages","outputs":[{"internalType":"uint256","name":"aggregateSwapFeePercentage","type":"uint256"},{"internalType":"uint256","name":"aggregateYieldFeePercentage","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getAmplificationParameter","outputs":[{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"bool","name":"isUpdating","type":"bool"},{"internalType":"uint256","name":"precision","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getAmplificationState","outputs":[{"components":[{"internalType":"uint64","name":"startValue","type":"uint64"},{"internalType":"uint64","name":"endValue","type":"uint64"},{"internalType":"uint32","name":"startTime","type":"uint32"},{"internalType":"uint32","name":"endTime","type":"uint32"}],"internalType":"struct AmplificationState","name":"amplificationState","type":"tuple"},{"internalType":"uint256","name":"precision","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getCurrentLiveBalances","outputs":[{"internalType":"uint256[]","name":"balancesLiveScaled18","type":"uint256[]"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getMaximumInvariantRatio","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"getMaximumSwapFeePercentage","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"getMinimumInvariantRatio","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"getMinimumSwapFeePercentage","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"getRate","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getStablePoolDynamicData","outputs":[{"components":[{"internalType":"uint256[]","name":"balancesLiveScaled18","type":"uint256[]"},{"internalType":"uint256[]","name":"tokenRates","type":"uint256[]"},{"internalType":"uint256","name":"staticSwapFeePercentage","type":"uint256"},{"internalType":"uint256","name":"totalSupply","type":"uint256"},{"internalType":"uint256","name":"bptRate","type":"uint256"},{"internalType":"uint256","name":"amplificationParameter","type":"uint256"},{"internalType":"uint256","name":"startValue","type":"uint256"},{"internalType":"uint256","name":"endValue","type":"uint256"},{"internalType":"uint32","name":"startTime","type":"uint32"},{"internalType":"uint32","name":"endTime","type":"uint32"},{"internalType":"bool","name":"isAmpUpdating","type":"bool"},{"internalType":"bool","name":"isPoolInitialized","type":"bool"},{"internalType":"bool","name":"isPoolPaused","type":"bool"},{"internalType":"bool","name":"isPoolInRecoveryMode","type":"bool"}],"internalType":"struct StablePoolDynamicData","name":"data","type":"tuple"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getStablePoolImmutableData","outputs":[{"components":[{"internalType":"contract IERC20[]","name":"tokens","type":"address[]"},{"internalType":"uint256[]","name":"decimalScalingFactors","type":"uint256[]"},{"internalType":"uint256","name":"amplificationParameterPrecision","type":"uint256"}],"internalType":"struct StablePoolImmutableData","name":"data","type":"tuple"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getStaticSwapFeePercentage","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getTokenInfo","outputs":[{"internalType":"contract IERC20[]","name":"tokens","type":"address[]"},{"components":[{"internalType":"enum TokenType","name":"tokenType","type":"uint8"},{"internalType":"contract IRateProvider","name":"rateProvider","type":"address"},{"internalType":"bool","name":"paysYieldFees","type":"bool"}],"internalType":"struct TokenInfo[]","name":"tokenInfo","type":"tuple[]"},{"internalType":"uint256[]","name":"balancesRaw","type":"uint256[]"},{"internalType":"uint256[]","name":"lastBalancesLiveScaled18","type":"uint256[]"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getTokens","outputs":[{"internalType":"contract IERC20[]","name":"tokens","type":"address[]"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getVault","outputs":[{"internalType":"contract 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SwapKind","name":"kind","type":"uint8"},{"internalType":"uint256","name":"amountGivenScaled18","type":"uint256"},{"internalType":"uint256[]","name":"balancesScaled18","type":"uint256[]"},{"internalType":"uint256","name":"indexIn","type":"uint256"},{"internalType":"uint256","name":"indexOut","type":"uint256"},{"internalType":"address","name":"router","type":"address"},{"internalType":"bytes","name":"userData","type":"bytes"}],"internalType":"struct PoolSwapParams","name":"request","type":"tuple"}],"name":"onSwap","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"uint256","name":"deadline","type":"uint256"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"permit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"rawEndValue","type":"uint256"},{"internalType":"uint256","name":"endTime","type":"uint256"}],"name":"startAmplificationParameterUpdate","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"stopAmplificationParameterUpdate","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"version","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"}]

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-----Decoded View---------------
Arg [0] : params (tuple): System.Collections.Generic.List`1[Nethereum.ABI.FunctionEncoding.ParameterOutput]
Arg [1] : vault (address): 0xbA1333333333a1BA1108E8412f11850A5C319bA9

-----Encoded View---------------
14 Constructor Arguments found :
Arg [0] : 0000000000000000000000000000000000000000000000000000000000000040
Arg [1] : 000000000000000000000000ba1333333333a1ba1108e8412f11850a5c319ba9
Arg [2] : 0000000000000000000000000000000000000000000000000000000000000080
Arg [3] : 00000000000000000000000000000000000000000000000000000000000000c0
Arg [4] : 00000000000000000000000000000000000000000000000000000000000003e8
Arg [5] : 0000000000000000000000000000000000000000000000000000000000000100
Arg [6] : 000000000000000000000000000000000000000000000000000000000000001d
Arg [7] : 444f204e4f5420555345202d204d6f636b20537461626c6520506f6f6c000000
Arg [8] : 0000000000000000000000000000000000000000000000000000000000000004
Arg [9] : 5445535400000000000000000000000000000000000000000000000000000000
Arg [10] : 0000000000000000000000000000000000000000000000000000000000000048
Arg [11] : 7b226e616d65223a22537461626c65506f6f6c222c2276657273696f6e223a31
Arg [12] : 2c226465706c6f796d656e74223a2232303234313230352d76332d737461626c
Arg [13] : 652d706f6f6c227d000000000000000000000000000000000000000000000000