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// SPDX-License-Identifier: GPL-3.0-only
pragma solidity 0.8.16;

import "../IPriceGetterProtocol.sol";
import "../../IPriceGetter.sol";
import "../../lib/UtilityLibrary.sol";
import "./interfaces/IAlgebraPool.sol";
import "./interfaces/IAlgebraFactory.sol";

contract PriceGetterAlgebra is IPriceGetterProtocol {
    // ========== Get Token Prices ==========

    function getTokenPrice(
        address token,
        address factory,
        PriceGetterParams memory params
    ) public view override returns (uint256 price) {
        IAlgebraFactory factoryAlgebra = IAlgebraFactory(factory);
        uint256 nativePrice = params.mainPriceGetter.getNativePrice(IPriceGetter.Protocol.Algebra, factory);
        if (token == params.wrappedNative.tokenAddress) {
            return nativePrice;
        }

        uint256 tempPrice;
        uint256 totalPrice;
        uint256 totalBalance;

        tempPrice = _getRelativePriceLP(factoryAlgebra, token, params.wrappedNative.tokenAddress);
        if (tempPrice > 0) {
            address pair = factoryAlgebra.poolByPair(token, params.wrappedNative.tokenAddress);
            uint256 balance = IERC20(token).balanceOf(pair);
            uint256 wNativeBalance = IERC20(params.wrappedNative.tokenAddress).balanceOf(pair);
            if (wNativeBalance > params.nativeLiquidityThreshold) {
                totalPrice += ((tempPrice * nativePrice) / 1e18) * balance;
                totalBalance += balance;
            }
        }

        for (uint256 i = 0; i < params.stableUsdTokens.length; i++) {
            address stableUsdToken = params.stableUsdTokens[i].tokenAddress;
            tempPrice = _getRelativePriceLP(factoryAlgebra, token, stableUsdToken);
            if (tempPrice > 0) {
                address pair = factoryAlgebra.poolByPair(token, stableUsdToken);
                uint256 balance = IERC20(token).balanceOf(pair);
                uint256 balanceStable = IERC20(stableUsdToken).balanceOf(pair);
                if (balanceStable > 10 * (10 ** IERC20(stableUsdToken).decimals())) {
                    uint256 stableUsdPrice = params.mainPriceGetter.getOraclePriceNormalized(stableUsdToken);
                    if (stableUsdPrice > 0) {
                        tempPrice = (tempPrice * stableUsdPrice) / 1e18;
                    }
                    totalPrice += tempPrice * balance;
                    totalBalance += balance;
                }
            }
        }

        if (totalBalance == 0) {
            return 0;
        }
        price = totalPrice / totalBalance;
    }

    // ========== LP PRICE ==========

    function getLPPrice(
        address lp,
        address factory,
        PriceGetterParams memory params
    ) public view override returns (uint256 price) {
        IAlgebraFactory factoryAlgebra = IAlgebraFactory(factory);
        address token0 = IAlgebraPool(lp).token0();
        address token1 = IAlgebraPool(lp).token1();
        return _getRelativePriceLP(factoryAlgebra, token0, token1);
    }

    // ========== NATIVE PRICE ==========

    function getNativePrice(
        address factory,
        PriceGetterParams memory params
    ) public view override returns (uint256 price) {
        IAlgebraFactory factoryAlgebra = IAlgebraFactory(factory);
        uint256 totalPrice;
        uint256 wNativeTotal;

        for (uint256 i = 0; i < params.stableUsdTokens.length; i++) {
            address stableUsdToken = params.stableUsdTokens[i].tokenAddress;
            price = _getRelativePriceLP(factoryAlgebra, params.wrappedNative.tokenAddress, stableUsdToken);
            uint256 stableUsdPrice = params.mainPriceGetter.getOraclePriceNormalized(stableUsdToken);
            if (stableUsdPrice > 0) {
                price = (price * stableUsdPrice) / 1e18;
            }
            if (price > 0) {
                address pair = factoryAlgebra.poolByPair(params.wrappedNative.tokenAddress, stableUsdToken);
                uint256 balance = IERC20(params.wrappedNative.tokenAddress).balanceOf(pair);
                totalPrice += price * balance;
                wNativeTotal += balance;
            }
        }

        if (wNativeTotal == 0) {
            return 0;
        }
        price = totalPrice / wNativeTotal;
    }

    // ========== INTERNAL FUNCTIONS ==========

    function _getRelativePriceLP(
        IAlgebraFactory factoryAlgebra,
        address token0,
        address token1
    ) internal view returns (uint256 price) {
        address tokenPegPair = IAlgebraFactory(factoryAlgebra).poolByPair(token0, token1);
        if (tokenPegPair == address(0)) return 0;

        uint256 sqrtPriceX96;
        (sqrtPriceX96, , , , , , ) = IAlgebraPool(tokenPegPair).globalState();

        uint256 token0Decimals = UtilityLibrary._getTokenDecimals(token0);
        uint256 token1Decimals = UtilityLibrary._getTokenDecimals(token1);

        if (sqrtPriceX96 == 0) {
            return 0;
        }

        uint256 decimalCorrection = 0;
        if (sqrtPriceX96 >= 340282366920938463463374607431768211455) {
            sqrtPriceX96 = sqrtPriceX96 / 1e3;
            decimalCorrection = 6;
        }
        if (sqrtPriceX96 >= 340282366920938463463374607431768211455) {
            return 0;
        }

        if (token1 < token0) {
            price =
                (2 ** 192) /
                ((sqrtPriceX96) ** 2 / uint256(10 ** (token0Decimals + 18 - token1Decimals - decimalCorrection)));
        } else {
            price =
                ((sqrtPriceX96) ** 2) /
                ((2 ** 192) / uint256(10 ** (token0Decimals + 18 - token1Decimals - decimalCorrection)));
        }
    }
}

// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.5.0;
pragma abicoder v2;

/// @title The interface for the Algebra Factory
/// @dev Credit to Uniswap Labs under GPL-2.0-or-later license:
/// https://github.com/Uniswap/v3-core/tree/main/contracts/interfaces
interface IAlgebraFactory {
    /// @notice Emitted when a process of ownership renounce is started
    /// @param timestamp The timestamp of event
    /// @param finishTimestamp The timestamp when ownership renounce will be possible to finish
    event RenounceOwnershipStart(uint256 timestamp, uint256 finishTimestamp);

    /// @notice Emitted when a process of ownership renounce cancelled
    /// @param timestamp The timestamp of event
    event RenounceOwnershipStop(uint256 timestamp);

    /// @notice Emitted when a process of ownership renounce finished
    /// @param timestamp The timestamp of ownership renouncement
    event RenounceOwnershipFinish(uint256 timestamp);

    /// @notice Emitted when a pool is created
    /// @param token0 The first token of the pool by address sort order
    /// @param token1 The second token of the pool by address sort order
    /// @param pool The address of the created pool
    event Pool(address indexed token0, address indexed token1, address pool);

    /// @notice Emitted when the farming address is changed
    /// @param newFarmingAddress The farming address after the address was changed
    event FarmingAddress(address indexed newFarmingAddress);

    /// @notice Emitted when the default community fee is changed
    /// @param newDefaultCommunityFee The new default community fee value
    event DefaultCommunityFee(uint8 newDefaultCommunityFee);

    /// @notice role that can change communityFee and tickspacing in pools
    function POOLS_ADMINISTRATOR_ROLE() external view returns (bytes32);

    /// @dev Returns `true` if `account` has been granted `role` or `account` is owner.
    function hasRoleOrOwner(bytes32 role, address account) external view returns (bool);

    /// @notice Returns the current owner of the factory
    /// @dev Can be changed by the current owner via transferOwnership(address newOwner)
    /// @return The address of the factory owner
    function owner() external view returns (address);

    /// @notice Returns the current poolDeployerAddress
    /// @return The address of the poolDeployer
    function poolDeployer() external view returns (address);

    /// @dev Is retrieved from the pools to restrict calling certain functions not by a tokenomics contract
    /// @return The tokenomics contract address
    function farmingAddress() external view returns (address);

    /// @notice Returns the current communityVaultAddress
    /// @return The address to which community fees are transferred
    function communityVault() external view returns (address);

    /// @notice Returns the default community fee
    /// @return Fee which will be set at the creation of the pool
    function defaultCommunityFee() external view returns (uint8);

    /// @notice Returns the pool address for a given pair of tokens, or address 0 if it does not exist
    /// @dev tokenA and tokenB may be passed in either token0/token1 or token1/token0 order
    /// @param tokenA The contract address of either token0 or token1
    /// @param tokenB The contract address of the other token
    /// @return pool The pool address
    function poolByPair(address tokenA, address tokenB) external view returns (address pool);

    /// @return timestamp The timestamp of the beginning of the renounceOwnership process
    function renounceOwnershipStartTimestamp() external view returns (uint256 timestamp);

    /// @notice Creates a pool for the given two tokens
    /// @param tokenA One of the two tokens in the desired pool
    /// @param tokenB The other of the two tokens in the desired pool
    /// @dev tokenA and tokenB may be passed in either order: token0/token1 or token1/token0.
    /// The call will revert if the pool already exists or the token arguments are invalid.
    /// @return pool The address of the newly created pool
    function createPool(address tokenA, address tokenB) external returns (address pool);

    /// @dev updates tokenomics address on the factory
    /// @param newFarmingAddress The new tokenomics contract address
    function setFarmingAddress(address newFarmingAddress) external;

    /// @dev updates default community fee for new pools
    /// @param newDefaultCommunityFee The new community fee, _must_ be <= MAX_COMMUNITY_FEE
    function setDefaultCommunityFee(uint8 newDefaultCommunityFee) external;

    /// @notice Starts process of renounceOwnership. After that, a certain period
    /// of time must pass before the ownership renounce can be completed.
    function startRenounceOwnership() external;

    /// @notice Stops process of renounceOwnership and removes timer.
    function stopRenounceOwnership() external;
}

// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.5.0;

/// @title Pool state that can change
/// @dev Credit to Uniswap Labs under GPL-2.0-or-later license:
/// https://github.com/Uniswap/v3-core/tree/main/contracts/interfaces
interface IAlgebraPool {
    /// @notice The globalState structure in the pool stores many values but requires only one slot
    /// and is exposed as a single method to save gas when accessed externally.
    /// @return price The current price of the pool as a sqrt(dToken1/dToken0) Q64.96 value;
    /// @return tick The current tick of the pool, i.e. according to the last tick transition that was run;
    /// This value may not always be equal to SqrtTickMath.getTickAtSqrtRatio(price) if the price is on a tick boundary;
    /// @return prevInitializedTick The previous initialized tick
    /// @return fee The last pool fee value in hundredths of a bip, i.e. 1e-6
    /// @return timepointIndex The index of the last written timepoint
    /// @return communityFee The community fee percentage of the swap fee in thousandths (1e-3)
    /// @return unlocked Whether the pool is currently locked to reentrancy
    function globalState()
        external
        view
        returns (
            uint160 price,
            int24 tick,
            int24 prevInitializedTick,
            uint16 fee,
            uint16 timepointIndex,
            uint8 communityFee,
            bool unlocked
        );

    function token0() external view returns (address);
    function token1() external view returns (address);
}

// SPDX-License-Identifier: GPL-3.0-only
pragma solidity 0.8.16;

import "../IPriceGetter.sol";

interface IPriceGetterProtocol {
    struct PriceGetterParams {
        IPriceGetter mainPriceGetter;
        IPriceGetter.TokenAndDecimals wrappedNative;
        IPriceGetter.TokenAndDecimals[] stableUsdTokens;
        uint256 nativeLiquidityThreshold;
    }

    /**
     * @dev Returns the price of a token.
     * @param token The address of the token to get the price for.
     * @return price The current price of the token.
     */
    function getTokenPrice(
        address token,
        address factory,
        PriceGetterParams memory params
    ) external view returns (uint256 price);

    /**
     * @dev Returns the price of an LP token.
     * @param lp The address of the LP token to get the price for.
     * @return price The current price of the LP token.
     */
    function getLPPrice(
        address lp,
        address factory,
        PriceGetterParams memory params
    ) external view returns (uint256 price);

    /**
     * @dev Returns the current price of the native token in USD.
     * @return nativePrice The current price of the native token in USD.
     */
    function getNativePrice(
        address factory,
        PriceGetterParams memory params
    ) external view returns (uint256 nativePrice);
}

// SPDX-License-Identifier: GPL-3.0-only
pragma solidity 0.8.16;

interface IPriceGetter {
    enum Protocol {
        __,
        ___,
        UniV2,
        UniV3,
        Algebra,
        _Gamma, // outdated
        _Steer, // outdated
        Solidly,
        Xfai,
        Curve,
        AlgebraIntegral
    }

    enum Wrappers {
        Gamma,
        Ichi,
        Steer
    }

    struct TokenAndDecimals {
        address tokenAddress;
        uint8 decimals;
    }

    function getTokenPrice(address token, Protocol protocol, address factory) external view returns (uint256 price);
    function getLPPrice(address lp, Protocol protocol, address factory) external view returns (uint256 price);
    function getWrappedLPPrice(
        address lp,
        Protocol protocol,
        address factory,
        IPriceGetter.Wrappers wrapper
    ) external view returns (uint256 price);
    function getNativePrice(Protocol protocol, address factory) external view returns (uint256 nativePrice);
    function getOraclePriceNormalized(address token) external view returns (uint256 price);
}

// SPDX-License-Identifier: GPL-3.0-only
pragma solidity 0.8.16;

import "../token-lib/IERC20.sol";

library UtilityLibrary {
    function _isSorted(address tokenA, address tokenB) internal pure returns (bool isSorted) {
        //  (address token0, address token1) = tokenA < tokenB ? (tokenA, tokenB) : (tokenB, tokenA);
        isSorted = tokenA < tokenB ? true : false;
    }

    function _getTokenDecimals(address token) internal view returns (uint8 decimals) {
        try IERC20(token).decimals() returns (uint8 dec) {
            decimals = dec;
        } catch {
            decimals = 18;
        }
    }

    /// @notice Normalize the amount of a token to wei or 1e18
    function _normalizeToken(uint256 amount, address token) internal view returns (uint256) {
        return _normalize(amount, _getTokenDecimals(token));
    }

    /// @notice Normalize the amount of a token to wei or 1e18
    function _normalizeToken112(uint112 amount, address token) internal view returns (uint112) {
        return _normalize112(amount, _getTokenDecimals(token));
    }

    /// @notice Normalize the amount passed to wei or 1e18 decimals
    function _normalize(uint256 amount, uint8 decimals) internal pure returns (uint256) {
        if (decimals == 18) return amount;
        return (amount * (10 ** 18)) / (10 ** decimals);
    }

    /// @notice Normalize the amount passed to wei or 1e18 decimals
    function _normalize112(uint112 amount, uint8 decimals) internal pure returns (uint112) {
        if (decimals == 18) {
            return amount;
        } else if (decimals > 18) {
            return uint112(amount / (10 ** (decimals - 18)));
        } else {
            return uint112(amount * (10 ** (18 - decimals)));
        }
    }
}

// SPDX-License-Identifier: GPL-3.0-only
pragma solidity >=0.5.0;

interface IERC20 {
    event Approval(address indexed owner, address indexed spender, uint value);
    event Transfer(address indexed from, address indexed to, uint value);

    function name() external view returns (string memory);

    function symbol() external view returns (string memory);

    function decimals() external view returns (uint8);

    function totalSupply() external view returns (uint);

    function balanceOf(address owner) external view returns (uint);

    function allowance(address owner, address spender) external view returns (uint);

    function approve(address spender, uint value) external returns (bool);

    function transfer(address to, uint value) external returns (bool);

    function transferFrom(address from, address to, uint value) external returns (bool);
}

{
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

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[{"inputs":[{"internalType":"address","name":"lp","type":"address"},{"internalType":"address","name":"factory","type":"address"},{"components":[{"internalType":"contract IPriceGetter","name":"mainPriceGetter","type":"address"},{"components":[{"internalType":"address","name":"tokenAddress","type":"address"},{"internalType":"uint8","name":"decimals","type":"uint8"}],"internalType":"struct IPriceGetter.TokenAndDecimals","name":"wrappedNative","type":"tuple"},{"components":[{"internalType":"address","name":"tokenAddress","type":"address"},{"internalType":"uint8","name":"decimals","type":"uint8"}],"internalType":"struct IPriceGetter.TokenAndDecimals[]","name":"stableUsdTokens","type":"tuple[]"},{"internalType":"uint256","name":"nativeLiquidityThreshold","type":"uint256"}],"internalType":"struct IPriceGetterProtocol.PriceGetterParams","name":"params","type":"tuple"}],"name":"getLPPrice","outputs":[{"internalType":"uint256","name":"price","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"factory","type":"address"},{"components":[{"internalType":"contract IPriceGetter","name":"mainPriceGetter","type":"address"},{"components":[{"internalType":"address","name":"tokenAddress","type":"address"},{"internalType":"uint8","name":"decimals","type":"uint8"}],"internalType":"struct IPriceGetter.TokenAndDecimals","name":"wrappedNative","type":"tuple"},{"components":[{"internalType":"address","name":"tokenAddress","type":"address"},{"internalType":"uint8","name":"decimals","type":"uint8"}],"internalType":"struct IPriceGetter.TokenAndDecimals[]","name":"stableUsdTokens","type":"tuple[]"},{"internalType":"uint256","name":"nativeLiquidityThreshold","type":"uint256"}],"internalType":"struct IPriceGetterProtocol.PriceGetterParams","name":"params","type":"tuple"}],"name":"getNativePrice","outputs":[{"internalType":"uint256","name":"price","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"address","name":"factory","type":"address"},{"components":[{"internalType":"contract IPriceGetter","name":"mainPriceGetter","type":"address"},{"components":[{"internalType":"address","name":"tokenAddress","type":"address"},{"internalType":"uint8","name":"decimals","type":"uint8"}],"internalType":"struct IPriceGetter.TokenAndDecimals","name":"wrappedNative","type":"tuple"},{"components":[{"internalType":"address","name":"tokenAddress","type":"address"},{"internalType":"uint8","name":"decimals","type":"uint8"}],"internalType":"struct IPriceGetter.TokenAndDecimals[]","name":"stableUsdTokens","type":"tuple[]"},{"internalType":"uint256","name":"nativeLiquidityThreshold","type":"uint256"}],"internalType":"struct IPriceGetterProtocol.PriceGetterParams","name":"params","type":"tuple"}],"name":"getTokenPrice","outputs":[{"internalType":"uint256","name":"price","type":"uint256"}],"stateMutability":"view","type":"function"}]

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