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// SPDX-License-Identifier: GPL-2.0-or-later

pragma solidity ^0.8.0;

import {Utils} from "./Utils.sol";
import {IFactory} from "../BaseFactory/interfaces/IFactory.sol";
import {IRMLinearKink} from "evk/InterestRateModels/IRMLinearKink.sol";
import {IRMAdaptiveCurve} from "../IRM/IRMAdaptiveCurve.sol";
import {IRMLinearKinky} from "../IRM/IRMLinearKinky.sol";
import {IRMFixedCyclicalBinary} from "../IRM/IRMFixedCyclicalBinary.sol";
import "./LensTypes.sol";

contract IRMLens is Utils {
    address public immutable kinkIRMFactory;
    address public immutable adaptiveCurveIRMFactory;
    address public immutable kinkyIRMFactory;
    address public immutable fixedCyclicalBinaryIRMFactory;

    constructor(
        address _kinkIRMFactory,
        address _adaptiveCurveIRMFactory,
        address _kinkyIRMFactory,
        address _fixedCyclicalBinaryIRMFactory
    ) {
        kinkIRMFactory = _kinkIRMFactory;
        adaptiveCurveIRMFactory = _adaptiveCurveIRMFactory;
        kinkyIRMFactory = _kinkyIRMFactory;
        fixedCyclicalBinaryIRMFactory = _fixedCyclicalBinaryIRMFactory;
    }

    function getInterestRateModelInfo(address irm) public view returns (InterestRateModelDetailedInfo memory) {
        InterestRateModelDetailedInfo memory result;

        if (irm == address(0)) {
            return result;
        }

        result.interestRateModel = irm;

        if (IFactory(kinkIRMFactory).isValidDeployment(irm)) {
            result.interestRateModelType = InterestRateModelType.KINK;
            result.interestRateModelParams = abi.encode(
                KinkIRMInfo({
                    baseRate: IRMLinearKink(irm).baseRate(),
                    slope1: IRMLinearKink(irm).slope1(),
                    slope2: IRMLinearKink(irm).slope2(),
                    kink: IRMLinearKink(irm).kink()
                })
            );
        } else if (IFactory(adaptiveCurveIRMFactory).isValidDeployment(irm)) {
            result.interestRateModelType = InterestRateModelType.ADAPTIVE_CURVE;
            result.interestRateModelParams = abi.encode(
                AdaptiveCurveIRMInfo({
                    targetUtilization: IRMAdaptiveCurve(irm).TARGET_UTILIZATION(),
                    initialRateAtTarget: IRMAdaptiveCurve(irm).INITIAL_RATE_AT_TARGET(),
                    minRateAtTarget: IRMAdaptiveCurve(irm).MIN_RATE_AT_TARGET(),
                    maxRateAtTarget: IRMAdaptiveCurve(irm).MAX_RATE_AT_TARGET(),
                    curveSteepness: IRMAdaptiveCurve(irm).CURVE_STEEPNESS(),
                    adjustmentSpeed: IRMAdaptiveCurve(irm).ADJUSTMENT_SPEED()
                })
            );
        } else if (IFactory(kinkyIRMFactory).isValidDeployment(irm)) {
            result.interestRateModelType = InterestRateModelType.KINKY;
            result.interestRateModelParams = abi.encode(
                KinkyIRMInfo({
                    baseRate: IRMLinearKinky(irm).baseRate(),
                    slope: IRMLinearKinky(irm).slope(),
                    shape: IRMLinearKinky(irm).shape(),
                    kink: IRMLinearKinky(irm).kink(),
                    cutoff: IRMLinearKinky(irm).cutoff()
                })
            );
        } else if (IFactory(fixedCyclicalBinaryIRMFactory).isValidDeployment(irm)) {
            result.interestRateModelType = InterestRateModelType.FIXED_CYCLICAL_BINARY;
            result.interestRateModelParams = abi.encode(
                FixedCyclicalBinaryIRMInfo({
                    primaryRate: IRMFixedCyclicalBinary(irm).primaryRate(),
                    secondaryRate: IRMFixedCyclicalBinary(irm).secondaryRate(),
                    primaryDuration: IRMFixedCyclicalBinary(irm).primaryDuration(),
                    secondaryDuration: IRMFixedCyclicalBinary(irm).secondaryDuration(),
                    startTimestamp: IRMFixedCyclicalBinary(irm).startTimestamp()
                })
            );
        }

        return result;
    }
}

// SPDX-License-Identifier: GPL-2.0-or-later

pragma solidity ^0.8.0;

import {IEVault} from "evk/EVault/IEVault.sol";
import {RPow} from "evk/EVault/shared/lib/RPow.sol";

abstract contract Utils {
    uint256 internal constant SECONDS_PER_YEAR = 365.2425 * 86400;
    uint256 internal constant ONE = 1e27;
    uint256 internal constant CONFIG_SCALE = 1e4;
    uint256 internal constant TTL_HS_ACCURACY = ONE / 1e4;
    int256 internal constant TTL_COMPUTATION_MIN = 0;
    int256 internal constant TTL_COMPUTATION_MAX = 400 * 1 days;
    int256 public constant TTL_INFINITY = type(int256).max;
    int256 public constant TTL_MORE_THAN_ONE_YEAR = type(int256).max - 1;
    int256 public constant TTL_LIQUIDATION = -1;
    int256 public constant TTL_ERROR = -2;

    function getWETHAddress() internal view returns (address) {
        if (block.chainid == 1) {
            return 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;
        } else if (
            block.chainid == 10 || block.chainid == 130 || block.chainid == 8453 || block.chainid == 1923
                || block.chainid == 480 || block.chainid == 57073 || block.chainid == 60808
        ) {
            return 0x4200000000000000000000000000000000000006;
        } else if (block.chainid == 56) {
            return 0x2170Ed0880ac9A755fd29B2688956BD959F933F8;
        } else if (block.chainid == 100) {
            return 0x6A023CCd1ff6F2045C3309768eAd9E68F978f6e1;
        } else if (block.chainid == 137) {
            return 0x7ceB23fD6bC0adD59E62ac25578270cFf1b9f619;
        } else if (block.chainid == 146) {
            return 0x50c42dEAcD8Fc9773493ED674b675bE577f2634b;
        } else if (block.chainid == 42161) {
            return 0x82aF49447D8a07e3bd95BD0d56f35241523fBab1;
        } else if (block.chainid == 43114) {
            return 0x49D5c2BdFfac6CE2BFdB6640F4F80f226bc10bAB;
        } else if (block.chainid == 80094) {
            return 0x2F6F07CDcf3588944Bf4C42aC74ff24bF56e7590;
        } else {
            // bitcoin-specific and test networks
            if (
                block.chainid == 30 || block.chainid == 21000000 || block.chainid == 10143 || block.chainid == 80084
                    || block.chainid == 2390
            ) {
                return address(0);
            }
            // hyperEVM
            if (block.chainid == 999) {
                return address(0);
            }

            // TAC
            if (block.chainid == 239) {
                return address(0);
            }
        }

        revert("getWETHAddress: Unsupported chain");
    }

    function _strEq(string memory a, string memory b) internal pure returns (bool) {
        return keccak256(bytes(a)) == keccak256(bytes(b));
    }

    /// @dev for tokens like MKR which return bytes32 on name() or symbol()
    function _getStringOrBytes32(address contractAddress, bytes4 selector) internal view returns (string memory) {
        (bool success, bytes memory result) = contractAddress.staticcall(abi.encodeWithSelector(selector));

        return (success && result.length != 0)
            ? result.length == 32 ? string(abi.encodePacked(result)) : abi.decode(result, (string))
            : "";
    }

    function _getDecimals(address contractAddress) internal view returns (uint8) {
        (bool success, bytes memory data) =
            contractAddress.staticcall(abi.encodeCall(IEVault(contractAddress).decimals, ()));

        return success && data.length >= 32 ? abi.decode(data, (uint8)) : 18;
    }

    function _computeAPYs(uint256 borrowSPY, uint256 cash, uint256 borrows, uint256 interestFee)
        internal
        pure
        returns (uint256 borrowAPY, uint256 supplyAPY)
    {
        uint256 totalAssets = cash + borrows;
        bool overflow;

        (borrowAPY, overflow) = RPow.rpow(borrowSPY + ONE, SECONDS_PER_YEAR, ONE);

        if (overflow) return (0, 0);

        borrowAPY -= ONE;
        supplyAPY =
            totalAssets == 0 ? 0 : borrowAPY * borrows * (CONFIG_SCALE - interestFee) / totalAssets / CONFIG_SCALE;
    }

    struct CollateralInfo {
        uint256 borrowSPY;
        uint256 borrows;
        uint256 totalAssets;
        uint256 interestFee;
        uint256 borrowInterest;
    }

    function _calculateTimeToLiquidation(
        address liabilityVault,
        uint256 liabilityValue,
        address[] memory collaterals,
        uint256[] memory collateralValues
    ) internal view returns (int256) {
        // if there's no liability, time to liquidation is infinite
        if (liabilityValue == 0) return TTL_INFINITY;

        // get borrow interest rate
        uint256 liabilitySPY;
        {
            (bool success, bytes memory data) =
                liabilityVault.staticcall(abi.encodeCall(IEVault(liabilityVault).interestRate, ()));

            if (success && data.length >= 32) {
                liabilitySPY = abi.decode(data, (uint256));
            }
        }

        // get individual collateral interest rates and total collateral value
        CollateralInfo[] memory collateralInfos = new CollateralInfo[](collaterals.length);
        uint256 collateralValue;
        for (uint256 i = 0; i < collaterals.length; ++i) {
            address collateral = collaterals[i];

            (bool success, bytes memory data) =
                collateral.staticcall(abi.encodeCall(IEVault(collateral).interestRate, ()));

            if (success && data.length >= 32) {
                collateralInfos[i].borrowSPY = abi.decode(data, (uint256));
            }

            (success, data) = collateral.staticcall(abi.encodeCall(IEVault(collateral).totalBorrows, ()));

            if (success && data.length >= 32) {
                collateralInfos[i].borrows = abi.decode(data, (uint256));
            }

            (success, data) = collateral.staticcall(abi.encodeCall(IEVault(collateral).cash, ()));

            if (success && data.length >= 32) {
                collateralInfos[i].totalAssets = abi.decode(data, (uint256)) + collateralInfos[i].borrows;
            }

            (success, data) = collateral.staticcall(abi.encodeCall(IEVault(collateral).interestFee, ()));

            if (success && data.length >= 32) {
                collateralInfos[i].interestFee = abi.decode(data, (uint256));
            }

            collateralValue += collateralValues[i];
        }

        // if liability is greater than or equal to collateral, the account is eligible for liquidation right away
        if (liabilityValue >= collateralValue) return TTL_LIQUIDATION;

        // if there's no borrow interest rate, time to liquidation is infinite
        if (liabilitySPY == 0) return TTL_INFINITY;

        int256 minTTL = TTL_COMPUTATION_MIN;
        int256 maxTTL = TTL_COMPUTATION_MAX;
        int256 ttl;

        // calculate time to liquidation using binary search
        while (true) {
            ttl = minTTL + (maxTTL - minTTL) / 2;

            // break if the search range is too small
            if (maxTTL <= minTTL + 1 days) break;
            if (ttl < 1 days) break;

            // calculate the liability interest accrued
            uint256 liabilityInterest;
            if (liabilitySPY > 0) {
                (uint256 multiplier, bool overflow) = RPow.rpow(liabilitySPY + ONE, uint256(ttl), ONE);

                if (overflow) return TTL_ERROR;

                liabilityInterest = liabilityValue * multiplier / ONE - liabilityValue;
            }

            // calculate the collaterals interest accrued
            uint256 collateralInterest;
            for (uint256 i = 0; i < collaterals.length; ++i) {
                if (collateralInfos[i].borrowSPY == 0 || collateralInfos[i].totalAssets == 0) continue;

                (uint256 multiplier, bool overflow) = RPow.rpow(collateralInfos[i].borrowSPY + ONE, uint256(ttl), ONE);

                if (overflow) return TTL_ERROR;

                collateralInfos[i].borrowInterest = collateralValues[i] * multiplier / ONE - collateralValues[i];

                collateralInterest += collateralInfos[i].borrowInterest * collateralInfos[i].borrows
                    * (CONFIG_SCALE - collateralInfos[i].interestFee) / collateralInfos[i].totalAssets / CONFIG_SCALE;
            }

            // calculate the health factor
            uint256 hs = (collateralValue + collateralInterest) * ONE / (liabilityValue + liabilityInterest);

            // if the collateral interest accrues fater than the liability interest, the account should never be
            // liquidated
            if (collateralInterest >= liabilityInterest) return TTL_INFINITY;

            // if the health factor is within the acceptable range, return the time to liquidation
            if (hs >= ONE && hs - ONE <= TTL_HS_ACCURACY) break;
            if (hs < ONE && ONE - hs <= TTL_HS_ACCURACY) break;

            // adjust the search range
            if (hs >= ONE) minTTL = ttl + 1 days;
            else maxTTL = ttl - 1 days;
        }

        return ttl > int256(SECONDS_PER_YEAR) ? TTL_MORE_THAN_ONE_YEAR : int256(ttl) / 1 days;
    }
}

// SPDX-License-Identifier: GPL-2.0-or-later

pragma solidity >=0.8.0;

/// @title IFactory
/// @custom:security-contact [email protected]
/// @author Euler Labs (https://www.eulerlabs.com/)
/// @notice A minimal factory interface for deploying contracts.
interface IFactory {
    struct DeploymentInfo {
        /// @notice The sender of the deployment call.
        address deployer;
        /// @notice The timestamp when the contract was deployed.
        uint96 deployedAt;
    }

    /// @notice An instance of a contract was deployed.
    /// @param deployedContract The deployment address of the contract.
    /// @param deployer The sender of the deployment call.
    /// @param deployedAt The deployment timestamp of the contract.
    event ContractDeployed(address indexed deployedContract, address indexed deployer, uint256 deployedAt);

    /// @notice Error thrown when the query is incorrect.
    error Factory_BadQuery();

    /// @notice Contracts deployed by the factory.
    function getDeploymentInfo(address contractAddress) external view returns (address deployer, uint96 deployedAt);

    /// @notice Checks if the deployment at the given address is valid.
    /// @param contractAddress The address of the contract to check.
    /// @return True if the deployment is valid, false otherwise.
    function isValidDeployment(address contractAddress) external view returns (bool);

    /// @notice Returns the number of contracts deployed by the factory.
    /// @return The number of deployed contracts.
    function getDeploymentsListLength() external view returns (uint256);

    /// @notice Returns a slice of the list of deployments.
    /// @param start The starting index of the slice.
    /// @param end The ending index of the slice (exclusive).
    /// @return list An array of addresses of the deployed contracts in the specified range.
    function getDeploymentsListSlice(uint256 start, uint256 end) external view returns (address[] memory list);
}

// SPDX-License-Identifier: GPL-2.0-or-later

pragma solidity ^0.8.0;

import "./IIRM.sol";

/// @title IRMLinearKink
/// @custom:security-contact [email protected]
/// @author Euler Labs (https://www.eulerlabs.com/)
/// @notice Implementation of an interest rate model, where interest rate grows linearly with utilization, and spikes
/// after reaching kink
contract IRMLinearKink is IIRM {
    /// @notice Base interest rate applied when utilization is equal zero
    uint256 public immutable baseRate;
    /// @notice Slope of the function before the kink
    uint256 public immutable slope1;
    /// @notice Slope of the function after the kink
    uint256 public immutable slope2;
    /// @notice Utilization at which the slope of the interest rate function changes. In type(uint32).max scale.
    uint256 public immutable kink;

    constructor(uint256 baseRate_, uint256 slope1_, uint256 slope2_, uint32 kink_) {
        baseRate = baseRate_;
        slope1 = slope1_;
        slope2 = slope2_;
        kink = kink_;
    }

    /// @inheritdoc IIRM
    function computeInterestRate(address vault, uint256 cash, uint256 borrows)
        external
        view
        override
        returns (uint256)
    {
        if (msg.sender != vault) revert E_IRMUpdateUnauthorized();

        return computeInterestRateInternal(vault, cash, borrows);
    }

    /// @inheritdoc IIRM
    function computeInterestRateView(address vault, uint256 cash, uint256 borrows)
        external
        view
        override
        returns (uint256)
    {
        return computeInterestRateInternal(vault, cash, borrows);
    }

    function computeInterestRateInternal(address, uint256 cash, uint256 borrows) internal view returns (uint256) {
        uint256 totalAssets = cash + borrows;

        uint32 utilization = totalAssets == 0
            ? 0 // empty pool arbitrarily given utilization of 0
            : uint32(borrows * type(uint32).max / totalAssets);

        uint256 ir = baseRate;

        if (utilization <= kink) {
            ir += utilization * slope1;
        } else {
            ir += kink * slope1;

            uint256 utilizationOverKink;
            unchecked {
                utilizationOverKink = utilization - kink;
            }
            ir += slope2 * utilizationOverKink;
        }

        return ir;
    }
}

// SPDX-License-Identifier: MIT
// Copyright (c) 2023 Morpho Association

pragma solidity ^0.8.0;

import {IIRM} from "evk/InterestRateModels/IIRM.sol";
import {ExpLib} from "./lib/ExpLib.sol";

/// @title IRMAdaptiveCurve
/// @custom:contact [email protected]
/// @author Euler Labs (https://www.eulerlabs.com/).
/// @author Adapted from Morpho Labs (https://github.com/morpho-org/morpho-blue-irm/).
/// @notice A Linear Kink IRM that adjusts the rate at target utilization based on time spent above/below it.
/// @dev This implementation intentionally leaves variables names, units and ExpLib unchanged from original.
/// Returned rates are extended to RAY per second to be compatible with the EVK.
contract IRMAdaptiveCurve is IIRM {
    /// @dev Unit for internal precision.
    int256 internal constant WAD = 1e18;
    /// @dev Unit for internal precision.
    int256 internal constant YEAR = int256(365.2425 days);
    /// @notice The name of the IRM.
    string public constant name = "IRMAdaptiveCurve";
    /// @notice The utilization rate targeted by the model.
    /// @dev In WAD units.
    int256 public immutable TARGET_UTILIZATION;
    /// @notice The initial interest rate at target utilization.
    /// @dev In WAD per second units.
    /// When the IRM is initialized for a vault this is the rate at target utilization that is assigned.
    int256 public immutable INITIAL_RATE_AT_TARGET;
    /// @notice The minimum interest rate at target utilization that the model can adjust to.
    /// @dev In WAD per second units.
    int256 public immutable MIN_RATE_AT_TARGET;
    /// @notice The maximum interest rate at target utilization that the model can adjust to.
    /// @dev In WAD per second units.
    int256 public immutable MAX_RATE_AT_TARGET;
    /// @notice The steepness of the interest rate line.
    /// @dev In WAD units.
    int256 public immutable CURVE_STEEPNESS;
    /// @notice The speed at which the rate at target is adjusted up or down.
    /// @dev In WAD per second units.
    /// For example, with `2e18 / 24 hours` the model will 2x `rateAtTarget` if the vault is fully utilized for a day.
    int256 public immutable ADJUSTMENT_SPEED;

    /// @notice Internal cached state of the interest rate model.
    struct IRState {
        /// @dev The current rate at target utilization.
        uint144 rateAtTarget;
        /// @dev The previous utilization rate of the vault.
        int64 lastUtilization;
        /// @dev The timestamp of the last update to the model.
        uint48 lastUpdate;
    }

    /// @notice Get the internal cached state of a vault's irm.
    mapping(address => IRState) internal irState;

    error InvalidParams();

    /// @notice Deploy IRMAdaptiveCurve.
    /// @param _TARGET_UTILIZATION The utilization rate targeted by the interest rate model.
    /// @param _INITIAL_RATE_AT_TARGET The initial interest rate at target utilization.
    /// @param _MIN_RATE_AT_TARGET The minimum interest rate at target utilization that the model can adjust to.
    /// @param _MAX_RATE_AT_TARGET The maximum interest rate at target utilization that the model can adjust to.
    /// @param _CURVE_STEEPNESS The steepness of the interest rate line.
    /// @param _ADJUSTMENT_SPEED The speed at which the rate at target utilization is adjusted up or down.
    constructor(
        int256 _TARGET_UTILIZATION,
        int256 _INITIAL_RATE_AT_TARGET,
        int256 _MIN_RATE_AT_TARGET,
        int256 _MAX_RATE_AT_TARGET,
        int256 _CURVE_STEEPNESS,
        int256 _ADJUSTMENT_SPEED
    ) {
        // Validate parameters.
        if (_TARGET_UTILIZATION <= 0 || _TARGET_UTILIZATION > 1e18) {
            revert InvalidParams();
        }
        if (_INITIAL_RATE_AT_TARGET < _MIN_RATE_AT_TARGET || _INITIAL_RATE_AT_TARGET > _MAX_RATE_AT_TARGET) {
            revert InvalidParams();
        }
        if (_MIN_RATE_AT_TARGET < 0.001e18 / YEAR || _MIN_RATE_AT_TARGET > 10e18 / YEAR) {
            revert InvalidParams();
        }
        if (_MAX_RATE_AT_TARGET < 0.001e18 / YEAR || _MAX_RATE_AT_TARGET > 10e18 / YEAR) {
            revert InvalidParams();
        }
        if (_CURVE_STEEPNESS < 1.01e18 || _CURVE_STEEPNESS > 100e18) {
            revert InvalidParams();
        }
        if (_ADJUSTMENT_SPEED < 2e18 / YEAR || _ADJUSTMENT_SPEED > 1000e18 / YEAR) {
            revert InvalidParams();
        }

        TARGET_UTILIZATION = _TARGET_UTILIZATION;
        INITIAL_RATE_AT_TARGET = _INITIAL_RATE_AT_TARGET;
        MIN_RATE_AT_TARGET = _MIN_RATE_AT_TARGET;
        MAX_RATE_AT_TARGET = _MAX_RATE_AT_TARGET;
        CURVE_STEEPNESS = _CURVE_STEEPNESS;
        ADJUSTMENT_SPEED = _ADJUSTMENT_SPEED;
    }

    /// @inheritdoc IIRM
    function computeInterestRate(address vault, uint256 cash, uint256 borrows) external returns (uint256) {
        if (msg.sender != vault) revert E_IRMUpdateUnauthorized();

        // Do not update state until the first borrow.
        if (borrows == 0 && irState[vault].lastUpdate == 0) {
            return uint256(_curve(INITIAL_RATE_AT_TARGET, _calcErr(0))) * 1e9;
        }

        int256 utilization = _calcUtilization(cash, borrows);
        (uint256 rate, uint256 rateAtTarget) = computeInterestRateInternal(vault, utilization);

        irState[vault] = IRState(uint144(rateAtTarget), int64(utilization), uint48(block.timestamp));
        return rate * 1e9; // Extend rate to RAY/sec for EVK.
    }

    /// @inheritdoc IIRM
    function computeInterestRateView(address vault, uint256 cash, uint256 borrows) external view returns (uint256) {
        int256 utilization = _calcUtilization(cash, borrows);
        (uint256 rate,) = computeInterestRateInternal(vault, utilization);
        return rate * 1e9; // Extend rate to RAY/sec for EVK.
    }

    /// @notice Perform computation of the new rate at target without mutating state.
    /// @param vault Address of the vault to compute the new interest rate for.
    /// @param cash Amount of assets held directly by the vault.
    /// @param borrows Amount of assets lent out to borrowers by the vault.
    /// @return The new rate at target utilization in RAY units.
    function computeRateAtTargetView(address vault, uint256 cash, uint256 borrows) external view returns (uint256) {
        int256 utilization = _calcUtilization(cash, borrows);
        (, uint256 rateAtTarget) = computeInterestRateInternal(vault, utilization);
        return rateAtTarget * 1e9; // Extend rate to RAY/sec for EVK.
    }

    /// @notice Get the timestamp of the last update for a vault.
    /// @param vault Address of the vault to get the last update timestamp for.
    /// @return The last update timestamp.
    function getLastUpdateTimestamp(address vault) external view returns (uint256) {
        return irState[vault].lastUpdate;
    }

    /// @notice Compute the new interest rate and rate at target utilization of a vault.
    /// @param vault Address of the vault to compute the new interest rate for.
    /// @return The new interest rate at current utilization.
    /// @return The new interest rate at target utilization.
    function computeInterestRateInternal(address vault, int256 utilization) internal view returns (uint256, uint256) {
        // Calculate normalized distance using previous utilization for curve shifting
        int256 lastUtilization = irState[vault].lastUpdate == 0 ? utilization : int256(irState[vault].lastUtilization);
        int256 errOld = _calcErr(lastUtilization);

        // Calculate normalized distance using current utilization for position on curve
        int256 errNew = _calcErr(utilization);

        IRState memory state = irState[vault];
        int256 startRateAtTarget = int256(uint256(state.rateAtTarget));
        int256 endRateAtTarget;

        if (startRateAtTarget == 0) {
            // First interaction.
            endRateAtTarget = INITIAL_RATE_AT_TARGET;
        } else {
            // Use errOld for curve shifting
            int256 speed = ADJUSTMENT_SPEED * errOld / WAD;

            // Calculate the adaptation parameter.
            int256 elapsed = int256(block.timestamp - state.lastUpdate);
            int256 linearAdaptation = speed * elapsed;

            if (linearAdaptation == 0) {
                endRateAtTarget = startRateAtTarget;
            } else {
                endRateAtTarget = _newRateAtTarget(startRateAtTarget, linearAdaptation);
            }
        }

        // Use errNew for position on curve to get current interest rate
        return (uint256(_curve(endRateAtTarget, errNew)), uint256(endRateAtTarget));
    }

    /// @notice Calculate the interest rate according to the linear kink model.
    /// @param rateAtTarget The current interest rate at target utilization.
    /// @param err The distance between the current utilization and the target utilization, normalized to `[-1, +1]`.
    /// @dev rate = ((1-1/C)*err + 1) * rateAtTarget if err < 0
    ///             (C-1)*err + 1) * rateAtTarget else.
    /// @return The new interest rate at current utilization.
    function _curve(int256 rateAtTarget, int256 err) internal view returns (int256) {
        // Non negative because 1 - 1/C >= 0, C - 1 >= 0.
        int256 coeff = err < 0 ? WAD - WAD * WAD / CURVE_STEEPNESS : CURVE_STEEPNESS - WAD;
        // Non negative if rateAtTarget >= 0 because if err < 0, coeff <= 1.
        return ((coeff * err / WAD) + WAD) * rateAtTarget / WAD;
    }

    /// @notice Calculate the new interest rate at target utilization by applying an adaptation.
    /// @param startRateAtTarget The current interest rate at target utilization.
    /// @param linearAdaptation The adaptation parameter, used as a power of `e`.
    /// @dev Applies exponential growth/decay to the current interest rate at target utilization.
    /// Formula: `rateAtTarget = startRateAtTarget * e^linearAdaptation` bounded to min and max.
    /// @return The new interest rate at target utilization.
    function _newRateAtTarget(int256 startRateAtTarget, int256 linearAdaptation) internal view returns (int256) {
        int256 rateAtTarget = startRateAtTarget * ExpLib.wExp(linearAdaptation) / WAD;
        if (rateAtTarget < MIN_RATE_AT_TARGET) return MIN_RATE_AT_TARGET;
        if (rateAtTarget > MAX_RATE_AT_TARGET) return MAX_RATE_AT_TARGET;
        return rateAtTarget;
    }

    /// @notice Calculate the normalized distance between the utilization and target utilization.
    /// @param utilization The utilization rate.
    /// @return The normalized distance between the utilization and target utilization.
    function _calcErr(int256 utilization) internal view returns (int256) {
        int256 errNormFactor = utilization > TARGET_UTILIZATION ? WAD - TARGET_UTILIZATION : TARGET_UTILIZATION;
        return (utilization - TARGET_UTILIZATION) * WAD / errNormFactor;
    }

    /// @notice Calculate the utilization rate, given cash and borrows from the vault.
    /// @param cash Amount of assets held directly by the vault.
    /// @param borrows Amount of assets lent out to borrowers by the vault.
    /// @return The utilization rate in WAD.
    function _calcUtilization(uint256 cash, uint256 borrows) internal pure returns (int256) {
        int256 totalAssets = int256(cash + borrows);
        if (totalAssets == 0) return 0;
        return int256(borrows) * WAD / totalAssets;
    }
}

// SPDX-License-Identifier: GPL-2.0-or-later

pragma solidity ^0.8.0;

import {IIRM} from "evk/InterestRateModels/IIRM.sol";

/// @title IRMLinearKinky
/// @custom:security-contact [email protected]
/// @author Euler Labs (https://www.eulerlabs.com/)
/// @notice Implementation of an interest rate model, where interest rate grows linearly with utilization, and spikes
/// non-linearly after reaching kink
contract IRMLinearKinky is IIRM {
    /// @notice Base interest rate applied when utilization is equal zero
    uint256 public immutable baseRate;
    /// @notice Slope of the function before the kink
    uint256 public immutable slope;
    /// @notice Shape parameter for the non-linear part of the curve. Typically between 0 and 100.
    uint256 public immutable shape;
    /// @notice Utilization at which the slope of the interest rate function changes. In type(uint32).max scale.
    uint256 public immutable kink;
    /// @notice Interest rate in second percent yield (SPY) at which the interest rate function is capped
    uint256 public immutable cutoff;

    /// @notice Remaining kink helper constant.
    uint256 internal immutable kinkRemaining;

    /// @notice Creates a new linear kinky interest rate model
    /// @param baseRate_ Base interest rate applied when utilization is equal zero
    /// @param slope_ Slope of the function before the kink
    /// @param shape_ Shape parameter for the non-linear part of the curve. Typically between 0 and 100
    /// @param kink_ Utilization at which the slope of the interest rate function changes. In type(uint32).max scale
    /// @param cutoff_ Interest rate in second percent yield (SPY) at which the interest rate function is capped
    constructor(uint256 baseRate_, uint256 slope_, uint256 shape_, uint32 kink_, uint256 cutoff_) {
        baseRate = baseRate_;
        slope = slope_;
        shape = shape_;
        kink = kink_;
        cutoff = cutoff_;
        kinkRemaining = type(uint32).max - kink;
    }

    /// @inheritdoc IIRM
    function computeInterestRate(address vault, uint256 cash, uint256 borrows)
        external
        view
        override
        returns (uint256)
    {
        if (msg.sender != vault) revert E_IRMUpdateUnauthorized();

        return computeInterestRateInternal(vault, cash, borrows);
    }

    /// @inheritdoc IIRM
    function computeInterestRateView(address vault, uint256 cash, uint256 borrows)
        external
        view
        override
        returns (uint256)
    {
        return computeInterestRateInternal(vault, cash, borrows);
    }

    function computeInterestRateInternal(address, uint256 cash, uint256 borrows) internal view returns (uint256) {
        uint256 totalAssets = cash + borrows;

        uint32 utilization = totalAssets == 0
            ? 0 // empty pool arbitrarily given utilization of 0
            : uint32(borrows * type(uint32).max / totalAssets);

        uint256 ir = baseRate;

        if (utilization <= kink) {
            ir += utilization * slope;
        } else {
            ir += kink * slope;

            uint256 utilizationOverKink;
            uint256 utilizationRemaining;
            unchecked {
                utilizationOverKink = utilization - kink;
                utilizationRemaining = type(uint32).max - utilization;
            }

            if (utilizationRemaining == 0) return cutoff;

            uint256 slopeUtilizationOverKink = slope * utilizationOverKink;

            ir += slopeUtilizationOverKink * kinkRemaining * (1 + shape) / utilizationRemaining
                - slopeUtilizationOverKink * shape;
        }

        return ir > cutoff ? cutoff : ir;
    }
}

// SPDX-License-Identifier: GPL-2.0-or-later

pragma solidity ^0.8.0;

import {IIRM} from "evk/InterestRateModels/IIRM.sol";

/// @title IRMFixedCyclicalBinary
/// @custom:security-contact [email protected]
/// @author Euler Labs (https://www.eulerlabs.com/)
/// @notice Implementation of an interest rate model, where interest rate cycles between two fixed values,
contract IRMFixedCyclicalBinary is IIRM {
    /// @notice Interest rate applied during the first part of the cycle
    uint256 public immutable primaryRate;
    /// @notice Interest rate applied during the second part of the cycle
    uint256 public immutable secondaryRate;
    /// @notice Duration of the primary part of the cycle in seconds
    uint256 public immutable primaryDuration;
    /// @notice Duration of the secondary part of the cycle in seconds
    uint256 public immutable secondaryDuration;
    /// @notice Timestamp of the start of the first cycle
    uint256 public immutable startTimestamp;

    /// @notice Error thrown when start timestamp is in the future
    error BadStartTimestamp();
    /// @notice Error thrown when duration of either primary or secondary part of the cycle is zero
    /// or when the whole cycle duration overflows uint
    error BadDuration();

    /// @notice Creates a fixed cyclical binary interest rate model
    /// @param primaryRate_ Interest rate applied during the first part of the cycle
    /// @param secondaryRate_ Interest rate applied during the second part of the cycle
    /// @param primaryDuration_ Duration of the primary part of the cycle in seconds
    /// @param secondaryDuration_ Duration of the secondary part of the cycle in seconds
    /// @param startTimestamp_ Timestamp of the start of the first cycle
    constructor(
        uint256 primaryRate_,
        uint256 secondaryRate_,
        uint256 primaryDuration_,
        uint256 secondaryDuration_,
        uint256 startTimestamp_
    ) {
        if (startTimestamp_ > block.timestamp) revert BadStartTimestamp();
        if (
            primaryDuration_ == 0 || secondaryDuration_ == 0
                || (type(uint256).max - primaryDuration_ < secondaryDuration_)
        ) revert BadDuration();

        primaryRate = primaryRate_;
        secondaryRate = secondaryRate_;
        primaryDuration = primaryDuration_;
        secondaryDuration = secondaryDuration_;
        startTimestamp = startTimestamp_;
    }

    /// @inheritdoc IIRM
    function computeInterestRate(address vault, uint256, uint256) external view override returns (uint256) {
        if (msg.sender != vault) revert E_IRMUpdateUnauthorized();

        return computeInterestRateInternal();
    }

    /// @inheritdoc IIRM
    function computeInterestRateView(address, uint256, uint256) external view override returns (uint256) {
        return computeInterestRateInternal();
    }

    function computeInterestRateInternal() internal view returns (uint256) {
        uint256 timeSinceStart = block.timestamp - startTimestamp;

        return timeSinceStart % (primaryDuration + secondaryDuration) <= primaryDuration ? primaryRate : secondaryRate;
    }
}

// SPDX-License-Identifier: GPL-2.0-or-later

pragma solidity ^0.8.0;

struct AccountInfo {
    EVCAccountInfo evcAccountInfo;
    VaultAccountInfo vaultAccountInfo;
    AccountRewardInfo accountRewardInfo;
}

struct AccountMultipleVaultsInfo {
    EVCAccountInfo evcAccountInfo;
    VaultAccountInfo[] vaultAccountInfo;
    AccountRewardInfo[] accountRewardInfo;
}

struct EVCAccountInfo {
    uint256 timestamp;
    address evc;
    address account;
    bytes19 addressPrefix;
    address owner;
    bool isLockdownMode;
    bool isPermitDisabledMode;
    uint256 lastAccountStatusCheckTimestamp;
    address[] enabledControllers;
    address[] enabledCollaterals;
}

struct VaultAccountInfo {
    uint256 timestamp;
    address account;
    address vault;
    address asset;
    uint256 assetsAccount;
    uint256 shares;
    uint256 assets;
    uint256 borrowed;
    uint256 assetAllowanceVault;
    uint256 assetAllowanceVaultPermit2;
    uint256 assetAllowanceExpirationVaultPermit2;
    uint256 assetAllowancePermit2;
    bool balanceForwarderEnabled;
    bool isController;
    bool isCollateral;
    AccountLiquidityInfo liquidityInfo;
}

struct AccountLiquidityInfo {
    bool queryFailure;
    bytes queryFailureReason;
    int256 timeToLiquidation;
    uint256 liabilityValue;
    uint256 collateralValueBorrowing;
    uint256 collateralValueLiquidation;
    uint256 collateralValueRaw;
    CollateralLiquidityInfo[] collateralLiquidityBorrowingInfo;
    CollateralLiquidityInfo[] collateralLiquidityLiquidationInfo;
    CollateralLiquidityInfo[] collateralLiquidityRawInfo;
}

struct CollateralLiquidityInfo {
    address collateral;
    uint256 collateralValue;
}

struct VaultInfoERC4626 {
    uint256 timestamp;
    address vault;
    string vaultName;
    string vaultSymbol;
    uint256 vaultDecimals;
    address asset;
    string assetName;
    string assetSymbol;
    uint256 assetDecimals;
    uint256 totalShares;
    uint256 totalAssets;
    bool isEVault;
}

struct VaultInfoFull {
    uint256 timestamp;
    address vault;
    string vaultName;
    string vaultSymbol;
    uint256 vaultDecimals;
    address asset;
    string assetName;
    string assetSymbol;
    uint256 assetDecimals;
    address unitOfAccount;
    string unitOfAccountName;
    string unitOfAccountSymbol;
    uint256 unitOfAccountDecimals;
    uint256 totalShares;
    uint256 totalCash;
    uint256 totalBorrowed;
    uint256 totalAssets;
    uint256 accumulatedFeesShares;
    uint256 accumulatedFeesAssets;
    address governorFeeReceiver;
    address protocolFeeReceiver;
    uint256 protocolFeeShare;
    uint256 interestFee;
    uint256 hookedOperations;
    uint256 configFlags;
    uint256 supplyCap;
    uint256 borrowCap;
    uint256 maxLiquidationDiscount;
    uint256 liquidationCoolOffTime;
    address dToken;
    address oracle;
    address interestRateModel;
    address hookTarget;
    address evc;
    address protocolConfig;
    address balanceTracker;
    address permit2;
    address creator;
    address governorAdmin;
    VaultInterestRateModelInfo irmInfo;
    LTVInfo[] collateralLTVInfo;
    AssetPriceInfo liabilityPriceInfo;
    AssetPriceInfo[] collateralPriceInfo;
    OracleDetailedInfo oracleInfo;
    AssetPriceInfo backupAssetPriceInfo;
    OracleDetailedInfo backupAssetOracleInfo;
}

struct LTVInfo {
    address collateral;
    uint256 borrowLTV;
    uint256 liquidationLTV;
    uint256 initialLiquidationLTV;
    uint256 targetTimestamp;
    uint256 rampDuration;
}

struct AssetPriceInfo {
    bool queryFailure;
    bytes queryFailureReason;
    uint256 timestamp;
    address oracle;
    address asset;
    address unitOfAccount;
    uint256 amountIn;
    uint256 amountOutMid;
    uint256 amountOutBid;
    uint256 amountOutAsk;
}

struct VaultInterestRateModelInfo {
    bool queryFailure;
    bytes queryFailureReason;
    address vault;
    address interestRateModel;
    InterestRateInfo[] interestRateInfo;
    InterestRateModelDetailedInfo interestRateModelInfo;
}

struct InterestRateInfo {
    uint256 cash;
    uint256 borrows;
    uint256 borrowSPY;
    uint256 borrowAPY;
    uint256 supplyAPY;
}

enum InterestRateModelType {
    UNKNOWN,
    KINK,
    ADAPTIVE_CURVE,
    KINKY,
    FIXED_CYCLICAL_BINARY
}

struct InterestRateModelDetailedInfo {
    address interestRateModel;
    InterestRateModelType interestRateModelType;
    bytes interestRateModelParams;
}

struct KinkIRMInfo {
    uint256 baseRate;
    uint256 slope1;
    uint256 slope2;
    uint256 kink;
}

struct AdaptiveCurveIRMInfo {
    int256 targetUtilization;
    int256 initialRateAtTarget;
    int256 minRateAtTarget;
    int256 maxRateAtTarget;
    int256 curveSteepness;
    int256 adjustmentSpeed;
}

struct KinkyIRMInfo {
    uint256 baseRate;
    uint256 slope;
    uint256 shape;
    uint256 kink;
    uint256 cutoff;
}

struct FixedCyclicalBinaryIRMInfo {
    uint256 primaryRate;
    uint256 secondaryRate;
    uint256 primaryDuration;
    uint256 secondaryDuration;
    uint256 startTimestamp;
}

struct AccountRewardInfo {
    uint256 timestamp;
    address account;
    address vault;
    address balanceTracker;
    bool balanceForwarderEnabled;
    uint256 balance;
    EnabledRewardInfo[] enabledRewardsInfo;
}

struct EnabledRewardInfo {
    address reward;
    uint256 earnedReward;
    uint256 earnedRewardRecentIgnored;
}

struct VaultRewardInfo {
    uint256 timestamp;
    address vault;
    address reward;
    string rewardName;
    string rewardSymbol;
    uint8 rewardDecimals;
    address balanceTracker;
    uint256 epochDuration;
    uint256 currentEpoch;
    uint256 totalRewardedEligible;
    uint256 totalRewardRegistered;
    uint256 totalRewardClaimed;
    RewardAmountInfo[] epochInfoPrevious;
    RewardAmountInfo[] epochInfoUpcoming;
}

struct RewardAmountInfo {
    uint256 epoch;
    uint256 epochStart;
    uint256 epochEnd;
    uint256 rewardAmount;
}

struct OracleDetailedInfo {
    address oracle;
    string name;
    bytes oracleInfo;
}

struct EulerRouterInfo {
    address governor;
    address fallbackOracle;
    OracleDetailedInfo fallbackOracleInfo;
    address[] bases;
    address[] quotes;
    address[][] resolvedAssets;
    address[] resolvedOracles;
    OracleDetailedInfo[] resolvedOraclesInfo;
}

struct ChainlinkOracleInfo {
    address base;
    address quote;
    address feed;
    string feedDescription;
    uint256 maxStaleness;
}

struct ChainlinkInfrequentOracleInfo {
    address base;
    address quote;
    address feed;
    string feedDescription;
    uint256 maxStaleness;
}

struct ChronicleOracleInfo {
    address base;
    address quote;
    address feed;
    uint256 maxStaleness;
}

struct LidoOracleInfo {
    address base;
    address quote;
}

struct LidoFundamentalOracleInfo {
    address base;
    address quote;
}

struct PythOracleInfo {
    address pyth;
    address base;
    address quote;
    bytes32 feedId;
    uint256 maxStaleness;
    uint256 maxConfWidth;
}

struct RedstoneCoreOracleInfo {
    address base;
    address quote;
    bytes32 feedId;
    uint8 feedDecimals;
    uint256 maxStaleness;
    uint208 cachePrice;
    uint48 cachePriceTimestamp;
}

struct UniswapV3OracleInfo {
    address tokenA;
    address tokenB;
    address pool;
    uint24 fee;
    uint32 twapWindow;
}

struct FixedRateOracleInfo {
    address base;
    address quote;
    uint256 rate;
}

struct RateProviderOracleInfo {
    address base;
    address quote;
    address rateProvider;
}

struct OndoOracleInfo {
    address base;
    address quote;
    address rwaOracle;
}

struct PendleProviderOracleInfo {
    address base;
    address quote;
    address pendleMarket;
    uint32 twapWindow;
}

struct PendleUniversalOracleInfo {
    address base;
    address quote;
    address pendleMarket;
    uint32 twapWindow;
}

struct CurveEMAOracleInfo {
    address base;
    address quote;
    address pool;
    uint256 priceOracleIndex;
}

struct SwaapSafeguardProviderOracleInfo {
    address base;
    address quote;
    bytes32 poolId;
}

struct CrossAdapterInfo {
    address base;
    address cross;
    address quote;
    address oracleBaseCross;
    address oracleCrossQuote;
    OracleDetailedInfo oracleBaseCrossInfo;
    OracleDetailedInfo oracleCrossQuoteInfo;
}

struct EulerEarnVaultInfoFull {
    uint256 timestamp;
    address vault;
    string vaultName;
    string vaultSymbol;
    uint256 vaultDecimals;
    address asset;
    string assetName;
    string assetSymbol;
    uint256 assetDecimals;
    uint256 totalShares;
    uint256 totalAssets;
    uint256 lostAssets;
    uint256 availableAssets;
    uint256 timelock;
    uint256 performanceFee;
    address feeReceiver;
    address owner;
    address creator;
    address curator;
    address guardian;
    address evc;
    address permit2;
    uint256 pendingTimelock;
    uint256 pendingTimelockValidAt;
    address pendingGuardian;
    uint256 pendingGuardianValidAt;
    address[] supplyQueue;
    EulerEarnVaultStrategyInfo[] strategies;
}

struct EulerEarnVaultStrategyInfo {
    address strategy;
    uint256 allocatedAssets;
    uint256 availableAssets;
    uint256 currentAllocationCap;
    uint256 pendingAllocationCap;
    uint256 pendingAllocationCapValidAt;
    uint256 removableAt;
    VaultInfoERC4626 info;
}

// SPDX-License-Identifier: GPL-2.0-or-later

pragma solidity >=0.8.0;

import {IVault as IEVCVault} from "ethereum-vault-connector/interfaces/IVault.sol";

// Full interface of EVault and all it's modules

/// @title IInitialize
/// @notice Interface of the initialization module of EVault
interface IInitialize {
    /// @notice Initialization of the newly deployed proxy contract
    /// @param proxyCreator Account which created the proxy or should be the initial governor
    function initialize(address proxyCreator) external;
}

/// @title IERC20
/// @notice Interface of the EVault's Initialize module
interface IERC20 {
    /// @notice Vault share token (eToken) name, ie "Euler Vault: DAI"
    /// @return The name of the eToken
    function name() external view returns (string memory);

    /// @notice Vault share token (eToken) symbol, ie "eDAI"
    /// @return The symbol of the eToken
    function symbol() external view returns (string memory);

    /// @notice Decimals, the same as the asset's or 18 if the asset doesn't implement `decimals()`
    /// @return The decimals of the eToken
    function decimals() external view returns (uint8);

    /// @notice Sum of all eToken balances
    /// @return The total supply of the eToken
    function totalSupply() external view returns (uint256);

    /// @notice Balance of a particular account, in eTokens
    /// @param account Address to query
    /// @return The balance of the account
    function balanceOf(address account) external view returns (uint256);

    /// @notice Retrieve the current allowance
    /// @param holder The account holding the eTokens
    /// @param spender Trusted address
    /// @return The allowance from holder for spender
    function allowance(address holder, address spender) external view returns (uint256);

    /// @notice Transfer eTokens to another address
    /// @param to Recipient account
    /// @param amount In shares.
    /// @return True if transfer succeeded
    function transfer(address to, uint256 amount) external returns (bool);

    /// @notice Transfer eTokens from one address to another
    /// @param from This address must've approved the to address
    /// @param to Recipient account
    /// @param amount In shares
    /// @return True if transfer succeeded
    function transferFrom(address from, address to, uint256 amount) external returns (bool);

    /// @notice Allow spender to access an amount of your eTokens
    /// @param spender Trusted address
    /// @param amount Use max uint for "infinite" allowance
    /// @return True if approval succeeded
    function approve(address spender, uint256 amount) external returns (bool);
}

/// @title IToken
/// @notice Interface of the EVault's Token module
interface IToken is IERC20 {
    /// @notice Transfer the full eToken balance of an address to another
    /// @param from This address must've approved the to address
    /// @param to Recipient account
    /// @return True if transfer succeeded
    function transferFromMax(address from, address to) external returns (bool);
}

/// @title IERC4626
/// @notice Interface of an ERC4626 vault
interface IERC4626 {
    /// @notice Vault's underlying asset
    /// @return The vault's underlying asset
    function asset() external view returns (address);

    /// @notice Total amount of managed assets, cash and borrows
    /// @return The total amount of assets
    function totalAssets() external view returns (uint256);

    /// @notice Calculate amount of assets corresponding to the requested shares amount
    /// @param shares Amount of shares to convert
    /// @return The amount of assets
    function convertToAssets(uint256 shares) external view returns (uint256);

    /// @notice Calculate amount of shares corresponding to the requested assets amount
    /// @param assets Amount of assets to convert
    /// @return The amount of shares
    function convertToShares(uint256 assets) external view returns (uint256);

    /// @notice Fetch the maximum amount of assets a user can deposit
    /// @param account Address to query
    /// @return The max amount of assets the account can deposit
    function maxDeposit(address account) external view returns (uint256);

    /// @notice Calculate an amount of shares that would be created by depositing assets
    /// @param assets Amount of assets deposited
    /// @return Amount of shares received
    function previewDeposit(uint256 assets) external view returns (uint256);

    /// @notice Fetch the maximum amount of shares a user can mint
    /// @param account Address to query
    /// @return The max amount of shares the account can mint
    function maxMint(address account) external view returns (uint256);

    /// @notice Calculate an amount of assets that would be required to mint requested amount of shares
    /// @param shares Amount of shares to be minted
    /// @return Required amount of assets
    function previewMint(uint256 shares) external view returns (uint256);

    /// @notice Fetch the maximum amount of assets a user is allowed to withdraw
    /// @param owner Account holding the shares
    /// @return The maximum amount of assets the owner is allowed to withdraw
    function maxWithdraw(address owner) external view returns (uint256);

    /// @notice Calculate the amount of shares that will be burned when withdrawing requested amount of assets
    /// @param assets Amount of assets withdrawn
    /// @return Amount of shares burned
    function previewWithdraw(uint256 assets) external view returns (uint256);

    /// @notice Fetch the maximum amount of shares a user is allowed to redeem for assets
    /// @param owner Account holding the shares
    /// @return The maximum amount of shares the owner is allowed to redeem
    function maxRedeem(address owner) external view returns (uint256);

    /// @notice Calculate the amount of assets that will be transferred when redeeming requested amount of shares
    /// @param shares Amount of shares redeemed
    /// @return Amount of assets transferred
    function previewRedeem(uint256 shares) external view returns (uint256);

    /// @notice Transfer requested amount of underlying tokens from sender to the vault pool in return for shares
    /// @param amount Amount of assets to deposit (use max uint256 for full underlying token balance)
    /// @param receiver An account to receive the shares
    /// @return Amount of shares minted
    /// @dev Deposit will round down the amount of assets that are converted to shares. To prevent losses consider using
    /// mint instead.
    function deposit(uint256 amount, address receiver) external returns (uint256);

    /// @notice Transfer underlying tokens from sender to the vault pool in return for requested amount of shares
    /// @param amount Amount of shares to be minted
    /// @param receiver An account to receive the shares
    /// @return Amount of assets deposited
    function mint(uint256 amount, address receiver) external returns (uint256);

    /// @notice Transfer requested amount of underlying tokens from the vault and decrease account's shares balance
    /// @param amount Amount of assets to withdraw
    /// @param receiver Account to receive the withdrawn assets
    /// @param owner Account holding the shares to burn
    /// @return Amount of shares burned
    function withdraw(uint256 amount, address receiver, address owner) external returns (uint256);

    /// @notice Burn requested shares and transfer corresponding underlying tokens from the vault to the receiver
    /// @param amount Amount of shares to burn (use max uint256 to burn full owner balance)
    /// @param receiver Account to receive the withdrawn assets
    /// @param owner Account holding the shares to burn.
    /// @return Amount of assets transferred
    function redeem(uint256 amount, address receiver, address owner) external returns (uint256);
}

/// @title IVault
/// @notice Interface of the EVault's Vault module
interface IVault is IERC4626 {
    /// @notice Balance of the fees accumulator, in shares
    /// @return The accumulated fees in shares
    function accumulatedFees() external view returns (uint256);

    /// @notice Balance of the fees accumulator, in underlying units
    /// @return The accumulated fees in asset units
    function accumulatedFeesAssets() external view returns (uint256);

    /// @notice Address of the original vault creator
    /// @return The address of the creator
    function creator() external view returns (address);

    /// @notice Creates shares for the receiver, from excess asset balances of the vault (not accounted for in `cash`)
    /// @param amount Amount of assets to claim (use max uint256 to claim all available assets)
    /// @param receiver An account to receive the shares
    /// @return Amount of shares minted
    /// @dev Could be used as an alternative deposit flow in certain scenarios. E.g. swap directly to the vault, call
    /// `skim` to claim deposit.
    function skim(uint256 amount, address receiver) external returns (uint256);
}

/// @title IBorrowing
/// @notice Interface of the EVault's Borrowing module
interface IBorrowing {
    /// @notice Sum of all outstanding debts, in underlying units (increases as interest is accrued)
    /// @return The total borrows in asset units
    function totalBorrows() external view returns (uint256);

    /// @notice Sum of all outstanding debts, in underlying units scaled up by shifting
    /// INTERNAL_DEBT_PRECISION_SHIFT bits
    /// @return The total borrows in internal debt precision
    function totalBorrowsExact() external view returns (uint256);

    /// @notice Balance of vault assets as tracked by deposits/withdrawals and borrows/repays
    /// @return The amount of assets the vault tracks as current direct holdings
    function cash() external view returns (uint256);

    /// @notice Debt owed by a particular account, in underlying units
    /// @param account Address to query
    /// @return The debt of the account in asset units
    function debtOf(address account) external view returns (uint256);

    /// @notice Debt owed by a particular account, in underlying units scaled up by shifting
    /// INTERNAL_DEBT_PRECISION_SHIFT bits
    /// @param account Address to query
    /// @return The debt of the account in internal precision
    function debtOfExact(address account) external view returns (uint256);

    /// @notice Retrieves the current interest rate for an asset
    /// @return The interest rate in yield-per-second, scaled by 10**27
    function interestRate() external view returns (uint256);

    /// @notice Retrieves the current interest rate accumulator for an asset
    /// @return An opaque accumulator that increases as interest is accrued
    function interestAccumulator() external view returns (uint256);

    /// @notice Returns an address of the sidecar DToken
    /// @return The address of the DToken
    function dToken() external view returns (address);

    /// @notice Transfer underlying tokens from the vault to the sender, and increase sender's debt
    /// @param amount Amount of assets to borrow (use max uint256 for all available tokens)
    /// @param receiver Account receiving the borrowed tokens
    /// @return Amount of assets borrowed
    function borrow(uint256 amount, address receiver) external returns (uint256);

    /// @notice Transfer underlying tokens from the sender to the vault, and decrease receiver's debt
    /// @param amount Amount of debt to repay in assets (use max uint256 for full debt)
    /// @param receiver Account holding the debt to be repaid
    /// @return Amount of assets repaid
    function repay(uint256 amount, address receiver) external returns (uint256);

    /// @notice Pay off liability with shares ("self-repay")
    /// @param amount In asset units (use max uint256 to repay the debt in full or up to the available deposit)
    /// @param receiver Account to remove debt from by burning sender's shares
    /// @return shares Amount of shares burned
    /// @return debt Amount of debt removed in assets
    /// @dev Equivalent to withdrawing and repaying, but no assets are needed to be present in the vault
    /// @dev Contrary to a regular `repay`, if account is unhealthy, the repay amount must bring the account back to
    /// health, or the operation will revert during account status check
    function repayWithShares(uint256 amount, address receiver) external returns (uint256 shares, uint256 debt);

    /// @notice Take over debt from another account
    /// @param amount Amount of debt in asset units (use max uint256 for all the account's debt)
    /// @param from Account to pull the debt from
    /// @dev Due to internal debt precision accounting, the liability reported on either or both accounts after
    /// calling `pullDebt` may not match the `amount` requested precisely
    function pullDebt(uint256 amount, address from) external;

    /// @notice Request a flash-loan. A onFlashLoan() callback in msg.sender will be invoked, which must repay the loan
    /// to the main Euler address prior to returning.
    /// @param amount In asset units
    /// @param data Passed through to the onFlashLoan() callback, so contracts don't need to store transient data in
    /// storage
    function flashLoan(uint256 amount, bytes calldata data) external;

    /// @notice Updates interest accumulator and totalBorrows, credits reserves, re-targets interest rate, and logs
    /// vault status
    function touch() external;
}

/// @title ILiquidation
/// @notice Interface of the EVault's Liquidation module
interface ILiquidation {
    /// @notice Checks to see if a liquidation would be profitable, without actually doing anything
    /// @param liquidator Address that will initiate the liquidation
    /// @param violator Address that may be in collateral violation
    /// @param collateral Collateral which is to be seized
    /// @return maxRepay Max amount of debt that can be repaid, in asset units
    /// @return maxYield Yield in collateral corresponding to max allowed amount of debt to be repaid, in collateral
    /// balance (shares for vaults)
    function checkLiquidation(address liquidator, address violator, address collateral)
        external
        view
        returns (uint256 maxRepay, uint256 maxYield);

    /// @notice Attempts to perform a liquidation
    /// @param violator Address that may be in collateral violation
    /// @param collateral Collateral which is to be seized
    /// @param repayAssets The amount of underlying debt to be transferred from violator to sender, in asset units (use
    /// max uint256 to repay the maximum possible amount). Meant as slippage check together with `minYieldBalance`
    /// @param minYieldBalance The minimum acceptable amount of collateral to be transferred from violator to sender, in
    /// collateral balance units (shares for vaults).  Meant as slippage check together with `repayAssets`
    /// @dev If `repayAssets` is set to max uint256 it is assumed the caller will perform their own slippage checks to
    /// make sure they are not taking on too much debt. This option is mainly meant for smart contract liquidators
    function liquidate(address violator, address collateral, uint256 repayAssets, uint256 minYieldBalance) external;
}

/// @title IRiskManager
/// @notice Interface of the EVault's RiskManager module
interface IRiskManager is IEVCVault {
    /// @notice Retrieve account's total liquidity
    /// @param account Account holding debt in this vault
    /// @param liquidation Flag to indicate if the calculation should be performed in liquidation vs account status
    /// check mode, where different LTV values might apply.
    /// @return collateralValue Total risk adjusted value of all collaterals in unit of account
    /// @return liabilityValue Value of debt in unit of account
    function accountLiquidity(address account, bool liquidation)
        external
        view
        returns (uint256 collateralValue, uint256 liabilityValue);

    /// @notice Retrieve account's liquidity per collateral
    /// @param account Account holding debt in this vault
    /// @param liquidation Flag to indicate if the calculation should be performed in liquidation vs account status
    /// check mode, where different LTV values might apply.
    /// @return collaterals Array of collaterals enabled
    /// @return collateralValues Array of risk adjusted collateral values corresponding to items in collaterals array.
    /// In unit of account
    /// @return liabilityValue Value of debt in unit of account
    function accountLiquidityFull(address account, bool liquidation)
        external
        view
        returns (address[] memory collaterals, uint256[] memory collateralValues, uint256 liabilityValue);

    /// @notice Release control of the account on EVC if no outstanding debt is present
    function disableController() external;

    /// @notice Checks the status of an account and reverts if account is not healthy
    /// @param account The address of the account to be checked
    /// @return magicValue Must return the bytes4 magic value 0xb168c58f (which is a selector of this function) when
    /// account status is valid, or revert otherwise.
    /// @dev Only callable by EVC during status checks
    function checkAccountStatus(address account, address[] calldata collaterals) external view returns (bytes4);

    /// @notice Checks the status of the vault and reverts if caps are exceeded
    /// @return magicValue Must return the bytes4 magic value 0x4b3d1223 (which is a selector of this function) when
    /// account status is valid, or revert otherwise.
    /// @dev Only callable by EVC during status checks
    function checkVaultStatus() external returns (bytes4);
}

/// @title IBalanceForwarder
/// @notice Interface of the EVault's BalanceForwarder module
interface IBalanceForwarder {
    /// @notice Retrieve the address of rewards contract, tracking changes in account's balances
    /// @return The balance tracker address
    function balanceTrackerAddress() external view returns (address);

    /// @notice Retrieves boolean indicating if the account opted in to forward balance changes to the rewards contract
    /// @param account Address to query
    /// @return True if balance forwarder is enabled
    function balanceForwarderEnabled(address account) external view returns (bool);

    /// @notice Enables balance forwarding for the authenticated account
    /// @dev Only the authenticated account can enable balance forwarding for itself
    /// @dev Should call the IBalanceTracker hook with the current account's balance
    function enableBalanceForwarder() external;

    /// @notice Disables balance forwarding for the authenticated account
    /// @dev Only the authenticated account can disable balance forwarding for itself
    /// @dev Should call the IBalanceTracker hook with the account's balance of 0
    function disableBalanceForwarder() external;
}

/// @title IGovernance
/// @notice Interface of the EVault's Governance module
interface IGovernance {
    /// @notice Retrieves the address of the governor
    /// @return The governor address
    function governorAdmin() external view returns (address);

    /// @notice Retrieves address of the governance fee receiver
    /// @return The fee receiver address
    function feeReceiver() external view returns (address);

    /// @notice Retrieves the interest fee in effect for the vault
    /// @return Amount of interest that is redirected as a fee, as a fraction scaled by 1e4
    function interestFee() external view returns (uint16);

    /// @notice Looks up an asset's currently configured interest rate model
    /// @return Address of the interest rate contract or address zero to indicate 0% interest
    function interestRateModel() external view returns (address);

    /// @notice Retrieves the ProtocolConfig address
    /// @return The protocol config address
    function protocolConfigAddress() external view returns (address);

    /// @notice Retrieves the protocol fee share
    /// @return A percentage share of fees accrued belonging to the protocol, in 1e4 scale
    function protocolFeeShare() external view returns (uint256);

    /// @notice Retrieves the address which will receive protocol's fees
    /// @notice The protocol fee receiver address
    function protocolFeeReceiver() external view returns (address);

    /// @notice Retrieves supply and borrow caps in AmountCap format
    /// @return supplyCap The supply cap in AmountCap format
    /// @return borrowCap The borrow cap in AmountCap format
    function caps() external view returns (uint16 supplyCap, uint16 borrowCap);

    /// @notice Retrieves the borrow LTV of the collateral, which is used to determine if the account is healthy during
    /// account status checks.
    /// @param collateral The address of the collateral to query
    /// @return Borrowing LTV in 1e4 scale
    function LTVBorrow(address collateral) external view returns (uint16);

    /// @notice Retrieves the current liquidation LTV, which is used to determine if the account is eligible for
    /// liquidation
    /// @param collateral The address of the collateral to query
    /// @return Liquidation LTV in 1e4 scale
    function LTVLiquidation(address collateral) external view returns (uint16);

    /// @notice Retrieves LTV configuration for the collateral
    /// @param collateral Collateral asset
    /// @return borrowLTV The current value of borrow LTV for originating positions
    /// @return liquidationLTV The value of fully converged liquidation LTV
    /// @return initialLiquidationLTV The initial value of the liquidation LTV, when the ramp began
    /// @return targetTimestamp The timestamp when the liquidation LTV is considered fully converged
    /// @return rampDuration The time it takes for the liquidation LTV to converge from the initial value to the fully
    /// converged value
    function LTVFull(address collateral)
        external
        view
        returns (
            uint16 borrowLTV,
            uint16 liquidationLTV,
            uint16 initialLiquidationLTV,
            uint48 targetTimestamp,
            uint32 rampDuration
        );

    /// @notice Retrieves a list of collaterals with configured LTVs
    /// @return List of asset collaterals
    /// @dev Returned assets could have the ltv disabled (set to zero)
    function LTVList() external view returns (address[] memory);

    /// @notice Retrieves the maximum liquidation discount
    /// @return The maximum liquidation discount in 1e4 scale
    /// @dev The default value, which is zero, is deliberately bad, as it means there would be no incentive to liquidate
    /// unhealthy users. The vault creator must take care to properly select the limit, given the underlying and
    /// collaterals used.
    function maxLiquidationDiscount() external view returns (uint16);

    /// @notice Retrieves liquidation cool-off time, which must elapse after successful account status check before
    /// account can be liquidated
    /// @return The liquidation cool off time in seconds
    function liquidationCoolOffTime() external view returns (uint16);

    /// @notice Retrieves a hook target and a bitmask indicating which operations call the hook target
    /// @return hookTarget Address of the hook target contract
    /// @return hookedOps Bitmask with operations that should call the hooks. See Constants.sol for a list of operations
    function hookConfig() external view returns (address hookTarget, uint32 hookedOps);

    /// @notice Retrieves a bitmask indicating enabled config flags
    /// @return Bitmask with config flags enabled
    function configFlags() external view returns (uint32);

    /// @notice Address of EthereumVaultConnector contract
    /// @return The EVC address
    function EVC() external view returns (address);

    /// @notice Retrieves a reference asset used for liquidity calculations
    /// @return The address of the reference asset
    function unitOfAccount() external view returns (address);

    /// @notice Retrieves the address of the oracle contract
    /// @return The address of the oracle
    function oracle() external view returns (address);

    /// @notice Retrieves the Permit2 contract address
    /// @return The address of the Permit2 contract
    function permit2Address() external view returns (address);

    /// @notice Splits accrued fees balance according to protocol fee share and transfers shares to the governor fee
    /// receiver and protocol fee receiver
    function convertFees() external;

    /// @notice Set a new governor address
    /// @param newGovernorAdmin The new governor address
    /// @dev Set to zero address to renounce privileges and make the vault non-governed
    function setGovernorAdmin(address newGovernorAdmin) external;

    /// @notice Set a new governor fee receiver address
    /// @param newFeeReceiver The new fee receiver address
    function setFeeReceiver(address newFeeReceiver) external;

    /// @notice Set a new LTV config
    /// @param collateral Address of collateral to set LTV for
    /// @param borrowLTV New borrow LTV, for assessing account's health during account status checks, in 1e4 scale
    /// @param liquidationLTV New liquidation LTV after ramp ends in 1e4 scale
    /// @param rampDuration Ramp duration in seconds
    function setLTV(address collateral, uint16 borrowLTV, uint16 liquidationLTV, uint32 rampDuration) external;

    /// @notice Set a new maximum liquidation discount
    /// @param newDiscount New maximum liquidation discount in 1e4 scale
    /// @dev If the discount is zero (the default), the liquidators will not be incentivized to liquidate unhealthy
    /// accounts
    function setMaxLiquidationDiscount(uint16 newDiscount) external;

    /// @notice Set a new liquidation cool off time, which must elapse after successful account status check before
    /// account can be liquidated
    /// @param newCoolOffTime The new liquidation cool off time in seconds
    /// @dev Setting cool off time to zero allows liquidating the account in the same block as the last successful
    /// account status check
    function setLiquidationCoolOffTime(uint16 newCoolOffTime) external;

    /// @notice Set a new interest rate model contract
    /// @param newModel The new IRM address
    /// @dev If the new model reverts, perhaps due to governor error, the vault will silently use a zero interest
    /// rate. Governor should make sure the new interest rates are computed as expected.
    function setInterestRateModel(address newModel) external;

    /// @notice Set a new hook target and a new bitmap indicating which operations should call the hook target.
    /// Operations are defined in Constants.sol.
    /// @param newHookTarget The new hook target address. Use address(0) to simply disable hooked operations
    /// @param newHookedOps Bitmask with the new hooked operations
    /// @dev All operations are initially disabled in a newly created vault. The vault creator must set their
    /// own configuration to make the vault usable
    function setHookConfig(address newHookTarget, uint32 newHookedOps) external;

    /// @notice Set new bitmap indicating which config flags should be enabled. Flags are defined in Constants.sol
    /// @param newConfigFlags Bitmask with the new config flags
    function setConfigFlags(uint32 newConfigFlags) external;

    /// @notice Set new supply and borrow caps in AmountCap format
    /// @param supplyCap The new supply cap in AmountCap fromat
    /// @param borrowCap The new borrow cap in AmountCap fromat
    function setCaps(uint16 supplyCap, uint16 borrowCap) external;

    /// @notice Set a new interest fee
    /// @param newFee The new interest fee
    function setInterestFee(uint16 newFee) external;
}

/// @title IEVault
/// @custom:security-contact [email protected]
/// @author Euler Labs (https://www.eulerlabs.com/)
/// @notice Interface of the EVault, an EVC enabled lending vault
interface IEVault is
    IInitialize,
    IToken,
    IVault,
    IBorrowing,
    ILiquidation,
    IRiskManager,
    IBalanceForwarder,
    IGovernance
{
    /// @notice Fetch address of the `Initialize` module
    function MODULE_INITIALIZE() external view returns (address);
    /// @notice Fetch address of the `Token` module
    function MODULE_TOKEN() external view returns (address);
    /// @notice Fetch address of the `Vault` module
    function MODULE_VAULT() external view returns (address);
    /// @notice Fetch address of the `Borrowing` module
    function MODULE_BORROWING() external view returns (address);
    /// @notice Fetch address of the `Liquidation` module
    function MODULE_LIQUIDATION() external view returns (address);
    /// @notice Fetch address of the `RiskManager` module
    function MODULE_RISKMANAGER() external view returns (address);
    /// @notice Fetch address of the `BalanceForwarder` module
    function MODULE_BALANCE_FORWARDER() external view returns (address);
    /// @notice Fetch address of the `Governance` module
    function MODULE_GOVERNANCE() external view returns (address);
}

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

pragma solidity ^0.8.0;

/// @notice Arithmetic library with operations for fixed-point numbers.
/// @custom:security-contact [email protected]
/// @author Solmate (https://github.com/transmissions11/solmate/blob/main/src/utils/FixedPointMathLib.sol)
/// @author Inspired by USM (https://github.com/usmfum/USM/blob/master/contracts/WadMath.sol)
/// @author Modified by Euler Labs (https://www.eulerlabs.com/) to return an `overflow` bool instead of reverting
library RPow {
    /// @dev If overflow is true, an overflow occurred and the value of z is undefined
    function rpow(uint256 x, uint256 n, uint256 scalar) internal pure returns (uint256 z, bool overflow) {
        /// @solidity memory-safe-assembly
        assembly {
            switch x
            case 0 {
                switch n
                case 0 {
                    // 0 ** 0 = 1
                    z := scalar
                }
                default {
                    // 0 ** n = 0
                    z := 0
                }
            }
            default {
                switch mod(n, 2)
                case 0 {
                    // If n is even, store scalar in z for now.
                    z := scalar
                }
                default {
                    // If n is odd, store x in z for now.
                    z := x
                }

                // Shifting right by 1 is like dividing by 2.
                let half := shr(1, scalar)

                for {
                    // Shift n right by 1 before looping to halve it.
                    n := shr(1, n)
                } n {
                    // Shift n right by 1 each iteration to halve it.
                    n := shr(1, n)
                } {
                    // Bail if x ** 2 would overflow.
                    // Equivalent to iszero(eq(div(xx, x), x)) here.
                    if shr(128, x) {
                        overflow := 1
                        break
                    }

                    // Store x squared.
                    let xx := mul(x, x)

                    // Round to the nearest number.
                    let xxRound := add(xx, half)

                    // Bail if xx + half overflowed.
                    if lt(xxRound, xx) {
                        overflow := 1
                        break
                    }

                    // Set x to scaled xxRound.
                    x := div(xxRound, scalar)

                    // If n is even:
                    if mod(n, 2) {
                        // Compute z * x.
                        let zx := mul(z, x)

                        // If z * x overflowed:
                        if iszero(eq(div(zx, x), z)) {
                            // Bail if x is non-zero.
                            if iszero(iszero(x)) {
                                overflow := 1
                                break
                            }
                        }

                        // Round to the nearest number.
                        let zxRound := add(zx, half)

                        // Bail if zx + half overflowed.
                        if lt(zxRound, zx) {
                            overflow := 1
                            break
                        }

                        // Return properly scaled zxRound.
                        z := div(zxRound, scalar)
                    }
                }
            }
        }
    }
}

// SPDX-License-Identifier: GPL-2.0-or-later

pragma solidity >=0.8.0;

/// @title IIRM
/// @custom:security-contact [email protected]
/// @author Euler Labs (https://www.eulerlabs.com/)
/// @notice Interface of the interest rate model contracts used by EVault
interface IIRM {
    error E_IRMUpdateUnauthorized();

    /// @notice Perform potentially state mutating computation of the new interest rate
    /// @param vault Address of the vault to compute the new interest rate for
    /// @param cash Amount of assets held directly by the vault
    /// @param borrows Amount of assets lent out to borrowers by the vault
    /// @return Then new interest rate in second percent yield (SPY), scaled by 1e27
    function computeInterestRate(address vault, uint256 cash, uint256 borrows) external returns (uint256);

    /// @notice Perform computation of the new interest rate without mutating state
    /// @param vault Address of the vault to compute the new interest rate for
    /// @param cash Amount of assets held directly by the vault
    /// @param borrows Amount of assets lent out to borrowers by the vault
    /// @return Then new interest rate in second percent yield (SPY), scaled by 1e27
    function computeInterestRateView(address vault, uint256 cash, uint256 borrows) external view returns (uint256);
}

// SPDX-License-Identifier: MIT
// Copyright (c) 2023 Morpho Association
pragma solidity ^0.8.0;
/// @title ExpLib
/// @custom:contact [email protected]
/// @author Adapted from Morpho Labs
/// (https://github.com/morpho-org/morpho-blue-irm/blob/a824ce06a53f45f12d0ffedb51abd756896b29fa/src/adaptive-curve-irm/libraries/ExpLib.sol)
/// @notice Library to approximate the exponential function.

library ExpLib {
    int256 internal constant WAD = 1e18;
    /// @dev ln(2).
    int256 internal constant LN_2_INT = 0.693147180559945309e18;
    /// @dev ln(1e-18).
    int256 internal constant LN_WEI_INT = -41.446531673892822312e18;
    /// @dev Above this bound, `wExp` is clipped to avoid overflowing when multiplied with 1e18.
    /// @dev This upper bound corresponds to: ln(type(int256).max / 1e36) (scaled by WAD, floored).
    int256 internal constant WEXP_UPPER_BOUND = 93.859467695000404319e18;
    /// @dev The value of wExp(`WEXP_UPPER_BOUND`).
    int256 internal constant WEXP_UPPER_VALUE = 57716089161558943949701069502944508345128.422502756744429568e18;
    /// @dev Returns an approximation of exp.

    function wExp(int256 x) internal pure returns (int256) {
        unchecked {
            // If x < ln(1e-18) then exp(x) < 1e-18 so it is rounded to zero.
            if (x < LN_WEI_INT) return 0;
            // `wExp` is clipped to avoid overflowing when multiplied with 1e18.
            if (x >= WEXP_UPPER_BOUND) return WEXP_UPPER_VALUE;
            // Decompose x as x = q * ln(2) + r with q an integer and -ln(2)/2 <= r <= ln(2)/2.
            // q = x / ln(2) rounded half toward zero.
            int256 roundingAdjustment = (x < 0) ? -(LN_2_INT / 2) : (LN_2_INT / 2);
            // Safe unchecked because x is bounded.
            int256 q = (x + roundingAdjustment) / LN_2_INT;
            // Safe unchecked because |q * ln(2) - x| <= ln(2)/2.
            int256 r = x - q * LN_2_INT;
            // Compute e^r with a 2nd-order Taylor polynomial.
            // Safe unchecked because |r| < 1e18.
            int256 expR = WAD + r + (r * r) / WAD / 2;
            // Return e^x = 2^q * e^r.
            if (q >= 0) return expR << uint256(q);
            else return expR >> uint256(-q);
        }
    }
}

// SPDX-License-Identifier: GPL-2.0-or-later

pragma solidity >=0.8.0;

/// @title IVault
/// @custom:security-contact [email protected]
/// @author Euler Labs (https://www.eulerlabs.com/)
/// @notice This interface defines the methods for the Vault for the purpose of integration with the Ethereum Vault
/// Connector.
interface IVault {
    /// @notice Disables a controller (this vault) for the authenticated account.
    /// @dev A controller is a vault that has been chosen for an account to have special control over account’s
    /// balances in the enabled collaterals vaults. User calls this function in order for the vault to disable itself
    /// for the account if the conditions are met (i.e. user has repaid debt in full). If the conditions are not met,
    /// the function reverts.
    function disableController() external;

    /// @notice Checks the status of an account.
    /// @dev This function must only deliberately revert if the account status is invalid. If this function reverts due
    /// to any other reason, it may render the account unusable with possibly no way to recover funds.
    /// @param account The address of the account to be checked.
    /// @param collaterals The array of enabled collateral addresses to be considered for the account status check.
    /// @return magicValue Must return the bytes4 magic value 0xb168c58f (which is a selector of this function) when
    /// account status is valid, or revert otherwise.
    function checkAccountStatus(
        address account,
        address[] calldata collaterals
    ) external view returns (bytes4 magicValue);

    /// @notice Checks the status of the vault.
    /// @dev This function must only deliberately revert if the vault status is invalid. If this function reverts due to
    /// any other reason, it may render some accounts unusable with possibly no way to recover funds.
    /// @return magicValue Must return the bytes4 magic value 0x4b3d1223 (which is a selector of this function) when
    /// account status is valid, or revert otherwise.
    function checkVaultStatus() external returns (bytes4 magicValue);
}

{
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    "lib/euler-earn:@openzeppelin-upgradeable/=lib/euler-earn/lib/openzeppelin-contracts-upgradeable/contracts/",
    "lib/euler-earn:ethereum-vault-connector/=lib/euler-earn/lib/ethereum-vault-connector/src/",
    "lib/layerzero-devtools/packages/oft-evm/contracts:@openzeppelin/contracts-upgradeable/=lib/openzeppelin-contracts/contracts/",
    "lib/layerzero-devtools/packages/oft-evm-upgradeable/contracts:@openzeppelin/contracts-upgradeable/=lib/openzeppelin-contracts-upgradeable/contracts/",
    "lib/layerzero-devtools/packages/oapp-evm-upgradeable/contracts:@openzeppelin/contracts-upgradeable/=lib/openzeppelin-contracts-upgradeable/contracts/",
    "@layerzerolabs/oft-evm/=lib/layerzero-devtools/packages/oft-evm/",
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    "@layerzerolabs/oapp-evm-upgradeable/=lib/layerzero-devtools/packages/oapp-evm-upgradeable/",
    "@layerzerolabs/lz-evm-protocol-v2/=lib/layerzero-v2/packages/layerzero-v2/evm/protocol/",
    "@layerzerolabs/lz-evm-messagelib-v2/=lib/layerzero-v2/packages/layerzero-v2/evm/messagelib/",
    "@layerzerolabs/lz-evm-oapp-v2/=lib/layerzero-v2/packages/layerzero-v2/evm/oapp/",
    "openzeppelin-contracts/=lib/openzeppelin-contracts/contracts/",
    "openzeppelin-contracts-upgradeable/=lib/openzeppelin-contracts-upgradeable/contracts/",
    "lib/fee-flow/src:solmate/=lib/fee-flow/lib/solmate/src/",
    "lib/fee-flow/utils:solmate/=lib/fee-flow/lib/solmate/utils/",
    "lib/fee-flow/tokens:solmate/=lib/fee-flow/lib/solmate/tokens/",
    "lib/euler-swap:solmate/=lib/euler-swap/lib/euler-vault-kit/lib/permit2/lib/solmate/",
    "ethereum-vault-connector/=lib/ethereum-vault-connector/src/",
    "evc/=lib/ethereum-vault-connector/src/",
    "evk/=lib/euler-vault-kit/src/",
    "evk-test/=lib/euler-vault-kit/test/",
    "euler-price-oracle/=lib/euler-price-oracle/src/",
    "euler-price-oracle-test/=lib/euler-price-oracle/test/",
    "fee-flow/=lib/fee-flow/src/",
    "reward-streams/=lib/reward-streams/src/",
    "@openzeppelin/contracts/=lib/openzeppelin-contracts/contracts/",
    "euler-earn/=lib/euler-earn/src/",
    "layerzero/oft-evm/=lib/layerzero-devtools/packages/oft-evm/contracts/",
    "layerzero/oft-evm-upgradeable/=lib/layerzero-devtools/packages/oft-evm-upgradeable/contracts/",
    "solidity-bytes-utils/=lib/solidity-bytes-utils/",
    "@ensdomains/=lib/euler-swap/lib/v4-periphery/lib/v4-core/node_modules/@ensdomains/",
    "@openzeppelin/contracts-upgradeable/=lib/openzeppelin-contracts-upgradeable/contracts/",
    "@pendle/core-v2/=lib/euler-price-oracle/lib/pendle-core-v2-public/contracts/",
    "@pyth/=lib/euler-price-oracle/lib/pyth-sdk-solidity/",
    "@redstone/evm-connector/=lib/euler-price-oracle/lib/redstone-oracles-monorepo/packages/evm-connector/contracts/",
    "@solady/=lib/euler-price-oracle/lib/solady/src/",
    "@uniswap/v3-core/=lib/euler-price-oracle/lib/v3-core/",
    "@uniswap/v3-periphery/=lib/euler-price-oracle/lib/v3-periphery/",
    "@uniswap/v4-core/=lib/euler-swap/lib/v4-periphery/lib/v4-core/",
    "ds-test/=lib/ethereum-vault-connector/lib/forge-std/lib/ds-test/src/",
    "erc4626-tests/=lib/openzeppelin-contracts-upgradeable/lib/erc4626-tests/",
    "euler-swap/=lib/euler-swap/",
    "euler-vault-kit/=lib/euler-vault-kit/",
    "forge-gas-snapshot/=lib/euler-vault-kit/lib/permit2/lib/forge-gas-snapshot/src/",
    "forge-std/=lib/forge-std/src/",
    "halmos-cheatcodes/=lib/openzeppelin-contracts-upgradeable/lib/halmos-cheatcodes/src/",
    "hardhat/=lib/euler-swap/lib/v4-periphery/lib/v4-core/node_modules/hardhat/",
    "layerzero-devtools/=lib/layerzero-devtools/packages/toolbox-foundry/src/",
    "layerzero-v2/=lib/layerzero-v2/",
    "openzeppelin/=lib/ethereum-vault-connector/lib/openzeppelin-contracts/contracts/",
    "pendle-core-v2-public/=lib/euler-price-oracle/lib/pendle-core-v2-public/contracts/",
    "permit2/=lib/euler-vault-kit/lib/permit2/",
    "pyth-sdk-solidity/=lib/euler-price-oracle/lib/pyth-sdk-solidity/",
    "redstone-oracles-monorepo/=lib/euler-price-oracle/lib/",
    "solady/=lib/euler-price-oracle/lib/solady/src/",
    "solmate/=lib/fee-flow/lib/solmate/src/",
    "v3-core/=lib/euler-price-oracle/lib/v3-core/contracts/",
    "v3-periphery/=lib/euler-price-oracle/lib/v3-periphery/contracts/",
    "v4-core/=lib/euler-swap/lib/v4-periphery/lib/v4-core/src/",
    "v4-periphery/=lib/euler-swap/lib/v4-periphery/"
  ],
  "optimizer": {
    "enabled": true,
    "runs": 20000
  },
  "metadata": {
    "useLiteralContent": false,
    "bytecodeHash": "ipfs",
    "appendCBOR": true
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "evmVersion": "cancun",
  "viaIR": false
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"address","name":"_kinkIRMFactory","type":"address"},{"internalType":"address","name":"_adaptiveCurveIRMFactory","type":"address"},{"internalType":"address","name":"_kinkyIRMFactory","type":"address"},{"internalType":"address","name":"_fixedCyclicalBinaryIRMFactory","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"TTL_ERROR","outputs":[{"internalType":"int256","name":"","type":"int256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"TTL_INFINITY","outputs":[{"internalType":"int256","name":"","type":"int256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"TTL_LIQUIDATION","outputs":[{"internalType":"int256","name":"","type":"int256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"TTL_MORE_THAN_ONE_YEAR","outputs":[{"internalType":"int256","name":"","type":"int256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"adaptiveCurveIRMFactory","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"fixedCyclicalBinaryIRMFactory","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"irm","type":"address"}],"name":"getInterestRateModelInfo","outputs":[{"components":[{"internalType":"address","name":"interestRateModel","type":"address"},{"internalType":"enum InterestRateModelType","name":"interestRateModelType","type":"uint8"},{"internalType":"bytes","name":"interestRateModelParams","type":"bytes"}],"internalType":"struct InterestRateModelDetailedInfo","name":"","type":"tuple"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"kinkIRMFactory","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"kinkyIRMFactory","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"}]

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00000000000000000000000052e856790779fd4fca34ba52c67cd191338572c00000000000000000000000001515a13551fdf554203f2a86021e0370a08a8d94000000000000000000000000d10aa71e7baec97c397829bedb5a3504546fe1490000000000000000000000005d403c8ad3300b0cb689ea243336f4d39d0e4dae

-----Decoded View---------------
Arg [0] : _kinkIRMFactory (address): 0x52E856790779fD4fCa34bA52C67Cd191338572C0
Arg [1] : _adaptiveCurveIRMFactory (address): 0x1515a13551fDF554203f2a86021e0370a08a8D94
Arg [2] : _kinkyIRMFactory (address): 0xd10aa71E7bAEC97C397829BEdb5a3504546fe149
Arg [3] : _fixedCyclicalBinaryIRMFactory (address): 0x5d403c8Ad3300B0cB689eA243336F4d39d0e4Dae

-----Encoded View---------------
4 Constructor Arguments found :
Arg [0] : 00000000000000000000000052e856790779fd4fca34ba52c67cd191338572c0
Arg [1] : 0000000000000000000000001515a13551fdf554203f2a86021e0370a08a8d94
Arg [2] : 000000000000000000000000d10aa71e7baec97c397829bedb5a3504546fe149
Arg [3] : 0000000000000000000000005d403c8ad3300b0cb689ea243336f4d39d0e4dae