// SPDX-License-Identifier: UNLICENSED

pragma solidity >=0.8.0;

import {MagicLP} from "/mimswap/MagicLP.sol";
import {BlastYields} from "/blast/libraries/BlastYields.sol";
import {BlastPoints} from "/blast/libraries/BlastPoints.sol";
import {BlastTokenRegistry} from "/blast/BlastTokenRegistry.sol";

contract BlastMagicLP is MagicLP {
    event LogFeeToChanged(address indexed feeTo);

    BlastTokenRegistry public immutable registry;

    /// @dev Implementation storage
    address public feeTo;

    constructor(BlastTokenRegistry registry_, address feeTo_, address owner_) MagicLP(owner_) {
        if (feeTo_ == address(0)) {
            revert ErrZeroAddress();
        }
        if (address(registry_) == address(0)) {
            revert ErrZeroAddress();
        }

        registry = registry_;
        feeTo = feeTo_;
    }

    //////////////////////////////////////////////////////////////////////////////////////
    /// VIEWS
    //////////////////////////////////////////////////////////////////////////////////////

    function version() external pure override returns (string memory) {
        return "BlastMagicLP 1.0.0";
    }

    //////////////////////////////////////////////////////////////////////////////////////
    /// OPERATORS / CLONES ONLY - PROTOCOL LEVEL YIELDS ON ALL POOLS
    //////////////////////////////////////////////////////////////////////////////////////

    function claimGasYields() external onlyClones onlyImplementationOperators returns (uint256) {
        address feeTo_ = BlastMagicLP(address(implementation)).feeTo();

        return BlastYields.claimMaxGasYields(feeTo_);
    }

    function claimTokenYields() external onlyClones onlyImplementationOperators returns (uint256 token0Amount, uint256 token1Amount) {
        address feeTo_ = BlastMagicLP(address(implementation)).feeTo();

        if (registry.nativeYieldTokens(_BASE_TOKEN_)) {
            token0Amount = BlastYields.claimAllTokenYields(_BASE_TOKEN_, feeTo_);
        }
        if (registry.nativeYieldTokens(_QUOTE_TOKEN_)) {
            token1Amount = BlastYields.claimAllTokenYields(_QUOTE_TOKEN_, feeTo_);
        }
    }

    function updateTokenClaimables() external onlyClones onlyImplementationOperators {
        _updateTokenClaimables();
    }

    //////////////////////////////////////////////////////////////////////////////////////
    /// ADMIN / CLONES ONLY
    //////////////////////////////////////////////////////////////////////////////////////

    function callBlastPrecompile(bytes calldata data) external onlyClones onlyImplementationOwner {
        BlastYields.callPrecompile(data);
    }

    //////////////////////////////////////////////////////////////////////////////////////
    /// ADMIN / IMPLEMENTATION ONLY
    //////////////////////////////////////////////////////////////////////////////////////

    function setFeeTo(address feeTo_) external onlyImplementation onlyImplementationOwner {
        if (feeTo_ == address(0)) {
            revert ErrZeroAddress();
        }

        feeTo = feeTo_;
        emit LogFeeToChanged(feeTo_);
    }

    //////////////////////////////////////////////////////////////////////////////////////
    /// INTERNALS
    //////////////////////////////////////////////////////////////////////////////////////

    function _afterInitialized() internal override {
        BlastYields.configureDefaultClaimables(address(this));
        BlastPoints.configure();
        _updateTokenClaimables();
    }

    function _updateTokenClaimables() internal {
        if (registry.nativeYieldTokens(_BASE_TOKEN_)) {
            BlastYields.enableTokenClaimable(_BASE_TOKEN_);
        }

        if (registry.nativeYieldTokens(_QUOTE_TOKEN_)) {
            BlastYields.enableTokenClaimable(_QUOTE_TOKEN_);
        }
    }
}

/*

    Copyright 2020 DODO ZOO.
    SPDX-License-Identifier: Apache-2.0

*/

pragma solidity >=0.8.0;

import {Owned} from "solmate/auth/Owned.sol";
import {IERC20Metadata} from "openzeppelin-contracts/interfaces/IERC20Metadata.sol";
import {SafeTransferLib} from "solady/utils/SafeTransferLib.sol";
import {ReentrancyGuard} from "solady/utils/ReentrancyGuard.sol";
import {ERC20} from "solady/tokens/ERC20.sol";
import {SafeCastLib} from "solady/utils/SafeCastLib.sol";
import {DecimalMath} from "/mimswap/libraries/DecimalMath.sol";
import {Math} from "/mimswap/libraries/Math.sol";
import {PMMPricing} from "/mimswap/libraries/PMMPricing.sol";
import {ICallee} from "/mimswap/interfaces/ICallee.sol";
import {IFeeRateModel} from "/mimswap/interfaces/IFeeRateModel.sol";
import {IWETH} from "interfaces/IWETH.sol";

/// @title MIMSwap MagicLP
/// @author Adapted from DODOEX DSP https://github.com/DODOEX/contractV2/tree/main/contracts/DODOStablePool
contract MagicLP is ERC20, ReentrancyGuard, Owned {
    using Math for uint256;
    using SafeCastLib for uint256;
    using SafeTransferLib for address;

    event BuyShares(address to, uint256 increaseShares, uint256 totalShares);
    event SellShares(address payer, address to, uint256 decreaseShares, uint256 totalShares);
    event Swap(address fromToken, address toToken, uint256 fromAmount, uint256 toAmount, address trader, address receiver);
    event FlashLoan(address borrower, address assetTo, uint256 baseAmount, uint256 quoteAmount);
    event RChange(PMMPricing.RState newRState);
    event TokenRescue(address indexed token, address to, uint256 amount);
    event ParametersChanged(uint256 newLpFeeRate, uint256 newI, uint256 newK);
    event TargetChanged(uint112 newBaseTarget, uint112 newQuoteTarget);
    event PausedChanged(bool paused);
    event OperatorChanged(address indexed operator, bool status);

    error ErrInitialized();
    error ErrBaseQuoteSame();
    error ErrInvalidI();
    error ErrInvalidK();
    error ErrExpired();
    error ErrInvalidSignature();
    error ErrFlashLoanFailed();
    error ErrNoBaseInput();
    error ErrZeroAddress();
    error ErrZeroQuoteAmount();
    error ErrZeroQuoteTarget();
    error ErrMintAmountNotEnough();
    error ErrNotEnough();
    error ErrWithdrawNotEnough();
    error ErrSellBackNotAllowed();
    error ErrInvalidLPFeeRate();
    error ErrNotImplementationOwner();
    error ErrNotImplementation();
    error ErrNotClone();
    error ErrNotAllowed();
    error ErrReserveAmountNotEnough();
    error ErrOverflow();
    error ErrNotPaused();
    error ErrNotAllowedImplementationOperator();
    error ErrInvalidTargets();

    MagicLP public immutable implementation;

    uint256 public constant MAX_I = 10 ** 36;
    uint256 public constant MAX_K = 10 ** 18;
    uint256 public constant MIN_LP_FEE_RATE = 1e14; // 0.01%
    uint256 public constant MAX_LP_FEE_RATE = 1e16; // 1%

    bool internal _INITIALIZED_;
    bool public _PAUSED_;
    bool public _PROTOCOL_OWNED_POOL_;

    address public _BASE_TOKEN_;
    address public _QUOTE_TOKEN_;
    uint112 public _BASE_RESERVE_;
    uint112 public _QUOTE_RESERVE_;
    uint112 public _BASE_TARGET_;
    uint112 public _QUOTE_TARGET_;
    uint32 public _RState_;
    IFeeRateModel public _MT_FEE_RATE_MODEL_;
    uint256 public _LP_FEE_RATE_;
    uint256 public _K_;
    uint256 public _I_;

    mapping(address => bool) public operators;

    constructor(address owner_) Owned(owner_) {
        implementation = this;

        // prevents the implementation contract initialization
        _INITIALIZED_ = true;
    }

    function init(
        address baseTokenAddress,
        address quoteTokenAddress,
        uint256 lpFeeRate,
        address mtFeeRateModel,
        uint256 i,
        uint256 k,
        bool protocolOwnedPool
    ) external {
        if (_INITIALIZED_) {
            revert ErrInitialized();
        }
        if (mtFeeRateModel == address(0) || baseTokenAddress == address(0) || quoteTokenAddress == address(0)) {
            revert ErrZeroAddress();
        }
        if (baseTokenAddress == quoteTokenAddress) {
            revert ErrBaseQuoteSame();
        }
        if (i == 0 || i > MAX_I) {
            revert ErrInvalidI();
        }
        if (k > MAX_K) {
            revert ErrInvalidK();
        }
        if (lpFeeRate < MIN_LP_FEE_RATE || lpFeeRate > MAX_LP_FEE_RATE) {
            revert ErrInvalidLPFeeRate();
        }

        _INITIALIZED_ = true;
        _BASE_TOKEN_ = baseTokenAddress;
        _QUOTE_TOKEN_ = quoteTokenAddress;
        _I_ = i;
        _K_ = k;
        _LP_FEE_RATE_ = lpFeeRate;
        _MT_FEE_RATE_MODEL_ = IFeeRateModel(mtFeeRateModel);
        _PROTOCOL_OWNED_POOL_ = protocolOwnedPool;

        _afterInitialized();
    }

    //////////////////////////////////////////////////////////////////////////////////////
    /// PUBLIC - CLONES ONLY
    //////////////////////////////////////////////////////////////////////////////////////

    function sync() external nonReentrant onlyClones {
        _sync();
    }

    function correctRState() external onlyClones {
        if (_RState_ == uint32(PMMPricing.RState.BELOW_ONE) && _BASE_RESERVE_ < _BASE_TARGET_) {
            _RState_ = uint32(PMMPricing.RState.ONE);
            _BASE_TARGET_ = _BASE_RESERVE_;
            _QUOTE_TARGET_ = _QUOTE_RESERVE_;
        }
        if (_RState_ == uint32(PMMPricing.RState.ABOVE_ONE) && _QUOTE_RESERVE_ < _QUOTE_TARGET_) {
            _RState_ = uint32(PMMPricing.RState.ONE);
            _BASE_TARGET_ = _BASE_RESERVE_;
            _QUOTE_TARGET_ = _QUOTE_RESERVE_;
        }
    }

    //////////////////////////////////////////////////////////////////////////////////////
    /// VIEWS
    //////////////////////////////////////////////////////////////////////////////////////

    function name() public view override returns (string memory) {
        return string(abi.encodePacked("MagicLP ", IERC20Metadata(_BASE_TOKEN_).symbol(), "/", IERC20Metadata(_QUOTE_TOKEN_).symbol()));
    }

    function symbol() public pure override returns (string memory) {
        return "MagicLP";
    }

    function decimals() public view override returns (uint8) {
        return IERC20Metadata(_BASE_TOKEN_).decimals();
    }

    function isImplementationOperator(address _operator) public view returns (bool) {
        return implementation.operators(_operator) || _operator == implementation.owner();
    }

    function querySellBase(
        address trader,
        uint256 payBaseAmount
    ) public view returns (uint256 receiveQuoteAmount, uint256 mtFee, PMMPricing.RState newRState, uint256 newBaseTarget) {
        PMMPricing.PMMState memory state = getPMMState();
        (receiveQuoteAmount, newRState) = PMMPricing.sellBaseToken(state, payBaseAmount);

        (uint256 lpFeeRate, uint256 mtFeeRate) = _MT_FEE_RATE_MODEL_.getFeeRate(trader, _LP_FEE_RATE_);
        mtFee = DecimalMath.mulFloor(receiveQuoteAmount, mtFeeRate);
        receiveQuoteAmount = (receiveQuoteAmount - DecimalMath.mulFloor(receiveQuoteAmount, lpFeeRate)) - mtFee;
        newBaseTarget = state.B0;
    }

    function querySellQuote(
        address trader,
        uint256 payQuoteAmount
    ) public view returns (uint256 receiveBaseAmount, uint256 mtFee, PMMPricing.RState newRState, uint256 newQuoteTarget) {
        PMMPricing.PMMState memory state = getPMMState();
        (receiveBaseAmount, newRState) = PMMPricing.sellQuoteToken(state, payQuoteAmount);

        (uint256 lpFeeRate, uint256 mtFeeRate) = _MT_FEE_RATE_MODEL_.getFeeRate(trader, _LP_FEE_RATE_);
        mtFee = DecimalMath.mulFloor(receiveBaseAmount, mtFeeRate);
        receiveBaseAmount = (receiveBaseAmount - DecimalMath.mulFloor(receiveBaseAmount, lpFeeRate)) - mtFee;
        newQuoteTarget = state.Q0;
    }

    function getPMMState() public view returns (PMMPricing.PMMState memory state) {
        state.i = _I_;
        state.K = _K_;
        state.B = _BASE_RESERVE_;
        state.Q = _QUOTE_RESERVE_;
        state.B0 = _BASE_TARGET_; // will be calculated in adjustedTarget
        state.Q0 = _QUOTE_TARGET_;
        state.R = PMMPricing.RState(_RState_);
        PMMPricing.adjustedTarget(state);
    }

    function getPMMStateForCall() external view returns (uint256 i, uint256 K, uint256 B, uint256 Q, uint256 B0, uint256 Q0, uint256 R) {
        PMMPricing.PMMState memory state = getPMMState();
        i = state.i;
        K = state.K;
        B = state.B;
        Q = state.Q;
        B0 = state.B0;
        Q0 = state.Q0;
        R = uint256(state.R);
    }

    function getReserves() external view returns (uint256 baseReserve, uint256 quoteReserve) {
        baseReserve = _BASE_RESERVE_;
        quoteReserve = _QUOTE_RESERVE_;
    }

    function getUserFeeRate(address user) external view returns (uint256 lpFeeRate, uint256 mtFeeRate) {
        return _MT_FEE_RATE_MODEL_.getFeeRate(user, _LP_FEE_RATE_);
    }

    function getBaseInput() public view nonReadReentrant returns (uint256 input) {
        return _BASE_TOKEN_.balanceOf(address(this)) - uint256(_BASE_RESERVE_);
    }

    function getQuoteInput() public view nonReadReentrant returns (uint256 input) {
        return _QUOTE_TOKEN_.balanceOf(address(this)) - uint256(_QUOTE_RESERVE_);
    }

    function version() external pure virtual returns (string memory) {
        return "MagicLP 1.0.0";
    }

    //////////////////////////////////////////////////////////////////////////////////////
    /// TRADE FUNCTIONS
    //////////////////////////////////////////////////////////////////////////////////////

    function sellBase(address to) external nonReentrant onlyClones whenNotPaused returns (uint256 receiveQuoteAmount) {
        uint256 baseBalance = _BASE_TOKEN_.balanceOf(address(this));
        uint256 baseInput = baseBalance - uint256(_BASE_RESERVE_);
        uint256 mtFee;
        uint256 newBaseTarget;
        PMMPricing.RState newRState;
        (receiveQuoteAmount, mtFee, newRState, newBaseTarget) = querySellBase(tx.origin, baseInput);

        _transferQuoteOut(to, receiveQuoteAmount);
        _transferQuoteOut(_MT_FEE_RATE_MODEL_.maintainer(), mtFee);

        // update TARGET
        if (_RState_ != uint32(newRState)) {
            _BASE_TARGET_ = newBaseTarget.toUint112();
            _RState_ = uint32(newRState);
            emit RChange(newRState);
        }

        _setReserve(baseBalance, _QUOTE_TOKEN_.balanceOf(address(this)));

        emit Swap(address(_BASE_TOKEN_), address(_QUOTE_TOKEN_), baseInput, receiveQuoteAmount, msg.sender, to);
    }

    function sellQuote(address to) external nonReentrant onlyClones whenNotPaused returns (uint256 receiveBaseAmount) {
        uint256 quoteBalance = _QUOTE_TOKEN_.balanceOf(address(this));
        uint256 quoteInput = quoteBalance - uint256(_QUOTE_RESERVE_);
        uint256 mtFee;
        uint256 newQuoteTarget;
        PMMPricing.RState newRState;
        (receiveBaseAmount, mtFee, newRState, newQuoteTarget) = querySellQuote(tx.origin, quoteInput);

        _transferBaseOut(to, receiveBaseAmount);
        _transferBaseOut(_MT_FEE_RATE_MODEL_.maintainer(), mtFee);

        // update TARGET
        if (_RState_ != uint32(newRState)) {
            _QUOTE_TARGET_ = newQuoteTarget.toUint112();
            _RState_ = uint32(newRState);
            emit RChange(newRState);
        }

        _setReserve(_BASE_TOKEN_.balanceOf(address(this)), quoteBalance);

        emit Swap(address(_QUOTE_TOKEN_), address(_BASE_TOKEN_), quoteInput, receiveBaseAmount, msg.sender, to);
    }

    function flashLoan(
        uint256 baseAmount,
        uint256 quoteAmount,
        address assetTo,
        bytes calldata data
    ) external nonReentrant onlyClones whenNotPaused {
        _transferBaseOut(assetTo, baseAmount);
        _transferQuoteOut(assetTo, quoteAmount);

        if (data.length > 0) {
            ICallee(assetTo).FlashLoanCall(msg.sender, baseAmount, quoteAmount, data);
        }

        uint256 baseBalance = _BASE_TOKEN_.balanceOf(address(this));
        uint256 quoteBalance = _QUOTE_TOKEN_.balanceOf(address(this));

        // no input -> pure loss
        if (baseBalance < _BASE_RESERVE_ && quoteBalance < _QUOTE_RESERVE_) {
            revert ErrFlashLoanFailed();
        }

        // sell quote case
        // quote input + base output
        if (baseBalance < _BASE_RESERVE_) {
            uint256 quoteInput = quoteBalance - uint256(_QUOTE_RESERVE_);
            (uint256 receiveBaseAmount, uint256 mtFee, PMMPricing.RState newRState, uint256 newQuoteTarget) = querySellQuote(
                tx.origin,
                quoteInput
            );

            if (uint256(_BASE_RESERVE_) - baseBalance > receiveBaseAmount) {
                revert ErrFlashLoanFailed();
            }

            _transferBaseOut(_MT_FEE_RATE_MODEL_.maintainer(), mtFee);
            if (_RState_ != uint32(newRState)) {
                _QUOTE_TARGET_ = newQuoteTarget.toUint112();
                _RState_ = uint32(newRState);
                emit RChange(newRState);
            }
            emit Swap(address(_QUOTE_TOKEN_), address(_BASE_TOKEN_), quoteInput, receiveBaseAmount, msg.sender, assetTo);
        }

        // sell base case
        // base input + quote output
        if (quoteBalance < _QUOTE_RESERVE_) {
            uint256 baseInput = baseBalance - uint256(_BASE_RESERVE_);
            (uint256 receiveQuoteAmount, uint256 mtFee, PMMPricing.RState newRState, uint256 newBaseTarget) = querySellBase(
                tx.origin,
                baseInput
            );

            if (uint256(_QUOTE_RESERVE_) - quoteBalance > receiveQuoteAmount) {
                revert ErrFlashLoanFailed();
            }

            _transferQuoteOut(_MT_FEE_RATE_MODEL_.maintainer(), mtFee);
            if (_RState_ != uint32(newRState)) {
                _BASE_TARGET_ = newBaseTarget.toUint112();
                _RState_ = uint32(newRState);
                emit RChange(newRState);
            }
            emit Swap(address(_BASE_TOKEN_), address(_QUOTE_TOKEN_), baseInput, receiveQuoteAmount, msg.sender, assetTo);
        }

        _sync();

        emit FlashLoan(msg.sender, assetTo, baseAmount, quoteAmount);
    }

    //////////////////////////////////////////////////////////////////////////////////////
    /// BUY & SELL SHARES
    //////////////////////////////////////////////////////////////////////////////////////

    // buy shares [round down]
    function buyShares(
        address to
    ) external nonReentrant onlyClones whenNotPaused returns (uint256 shares, uint256 baseInput, uint256 quoteInput) {
        uint256 baseBalance = _BASE_TOKEN_.balanceOf(address(this));
        uint256 quoteBalance = _QUOTE_TOKEN_.balanceOf(address(this));
        uint256 baseReserve = _BASE_RESERVE_;
        uint256 quoteReserve = _QUOTE_RESERVE_;

        baseInput = baseBalance - baseReserve;
        quoteInput = quoteBalance - quoteReserve;

        if (baseInput == 0) {
            revert ErrNoBaseInput();
        }

        // Round down when withdrawing. Therefore, never be a situation occurring balance is 0 but totalsupply is not 0
        // But May Happen，reserve >0 But totalSupply = 0
        if (totalSupply() == 0) {
            // case 1. initial supply
            if (quoteBalance == 0) {
                revert ErrZeroQuoteAmount();
            }

            shares = quoteBalance < DecimalMath.mulFloor(baseBalance, _I_) ? DecimalMath.divFloor(quoteBalance, _I_) : baseBalance;
            _BASE_TARGET_ = shares.toUint112();
            _QUOTE_TARGET_ = DecimalMath.mulFloor(shares, _I_).toUint112();

            if (_QUOTE_TARGET_ == 0) {
                revert ErrZeroQuoteTarget();
            }

            if (shares <= 2001) {
                revert ErrMintAmountNotEnough();
            }

            _mint(address(0), 1001);
            shares -= 1001;
        } else if (baseReserve > 0 && quoteReserve > 0) {
            // case 2. normal case
            uint256 baseInputRatio = DecimalMath.divFloor(baseInput, baseReserve);
            uint256 quoteInputRatio = DecimalMath.divFloor(quoteInput, quoteReserve);
            uint256 mintRatio = quoteInputRatio < baseInputRatio ? quoteInputRatio : baseInputRatio;
            shares = DecimalMath.mulFloor(totalSupply(), mintRatio);

            _BASE_TARGET_ = (uint256(_BASE_TARGET_) + DecimalMath.mulFloor(uint256(_BASE_TARGET_), mintRatio)).toUint112();
            _QUOTE_TARGET_ = (uint256(_QUOTE_TARGET_) + DecimalMath.mulFloor(uint256(_QUOTE_TARGET_), mintRatio)).toUint112();
        }

        _mint(to, shares);
        _setReserve(baseBalance, quoteBalance);

        emit BuyShares(to, shares, balanceOf(to));
    }

    // sell shares [round down]
    function sellShares(
        uint256 shareAmount,
        address to,
        uint256 baseMinAmount,
        uint256 quoteMinAmount,
        bytes calldata data,
        uint256 deadline
    ) external nonReentrant onlyClones whenNotPaused returns (uint256 baseAmount, uint256 quoteAmount) {
        if (deadline < block.timestamp) {
            revert ErrExpired();
        }
        if (shareAmount > balanceOf(msg.sender)) {
            revert ErrNotEnough();
        }
        if (to == address(this)) {
            revert ErrSellBackNotAllowed();
        }

        uint256 baseBalance = _BASE_TOKEN_.balanceOf(address(this));
        uint256 quoteBalance = _QUOTE_TOKEN_.balanceOf(address(this));
        uint256 totalShares = totalSupply();

        baseAmount = (baseBalance * shareAmount) / totalShares;
        quoteAmount = (quoteBalance * shareAmount) / totalShares;

        _BASE_TARGET_ = uint112(uint256(_BASE_TARGET_) - (uint256(_BASE_TARGET_) * shareAmount).divCeil(totalShares));
        _QUOTE_TARGET_ = uint112(uint256(_QUOTE_TARGET_) - (uint256(_QUOTE_TARGET_) * shareAmount).divCeil(totalShares));

        if (baseAmount < baseMinAmount || quoteAmount < quoteMinAmount) {
            revert ErrWithdrawNotEnough();
        }

        _burn(msg.sender, shareAmount);
        _transferBaseOut(to, baseAmount);
        _transferQuoteOut(to, quoteAmount);
        _sync();

        if (data.length > 0) {
            ICallee(to).SellShareCall(msg.sender, shareAmount, baseAmount, quoteAmount, data);
        }

        emit SellShares(msg.sender, to, shareAmount, balanceOf(msg.sender));
    }

    //////////////////////////////////////////////////////////////////////////////////////
    /// ADMIN - IMPLEMENTATION ONLY
    //////////////////////////////////////////////////////////////////////////////////////

    function setOperator(address _operator, bool _status) external onlyImplementation onlyImplementationOwner {
        operators[_operator] = _status;
        emit OperatorChanged(_operator, _status);
    }

    //////////////////////////////////////////////////////////////////////////////////////
    /// OPERATORS / ADMIN - PROTOCOL OWNED POOL AND CLONES ONLY
    //////////////////////////////////////////////////////////////////////////////////////

    function setPaused(bool paused) external onlyClones onlyProtocolOwnedPool onlyImplementationOperators {
        _PAUSED_ = paused;
        emit PausedChanged(paused);
    }

    function rescue(address token, address to, uint256 amount) external onlyClones onlyProtocolOwnedPool onlyImplementationOperators {
        if (token == _BASE_TOKEN_ || token == _QUOTE_TOKEN_) {
            revert ErrNotAllowed();
        }

        token.safeTransfer(to, amount);
        emit TokenRescue(token, to, amount);
    }

    /// @notice Set new parameters for the pool
    /// The pool must be paused, preferably blocks earlier to avoid sandwiching
    function setParameters(
        address assetTo,
        uint256 newLpFeeRate,
        uint256 newI,
        uint256 newK,
        uint256 baseOutAmount,
        uint256 quoteOutAmount,
        uint256 minBaseReserve,
        uint256 minQuoteReserve
    ) public nonReentrant onlyClones whenPaused onlyProtocolOwnedPool onlyImplementationOperators {
        if (_BASE_RESERVE_ < minBaseReserve || _QUOTE_RESERVE_ < minQuoteReserve) {
            revert ErrReserveAmountNotEnough();
        }
        if (newI == 0 || newI > MAX_I) {
            revert ErrInvalidI();
        }
        if (newK > MAX_K) {
            revert ErrInvalidK();
        }
        if (newLpFeeRate < MIN_LP_FEE_RATE || newLpFeeRate > MAX_LP_FEE_RATE) {
            revert ErrInvalidLPFeeRate();
        }

        _LP_FEE_RATE_ = newLpFeeRate;
        _K_ = newK;
        _I_ = newI;

        _transferBaseOut(assetTo, baseOutAmount);
        _transferQuoteOut(assetTo, quoteOutAmount);

        emit ParametersChanged(newLpFeeRate, newI, newK);
    }

    function resetTargetAndReserve()
        public
        nonReentrant
        onlyClones
        whenPaused
        onlyProtocolOwnedPool
        onlyImplementationOperators
        returns (uint256 baseBalance, uint256 quoteBalance)
    {
        (baseBalance, quoteBalance) = _resetTargetAndReserve();
        emit TargetChanged(uint112(baseBalance), uint112(quoteBalance));
    }

    function setTargets(
        uint112 baseTarget,
        uint112 quoteTarget
    ) public nonReentrant onlyClones whenPaused onlyProtocolOwnedPool onlyImplementationOperators {
        _BASE_TARGET_ = baseTarget;
        _QUOTE_TARGET_ = quoteTarget;
        emit TargetChanged(baseTarget, quoteTarget);
    }

    function setRState(
        PMMPricing.RState newState
    ) public nonReentrant onlyClones whenPaused onlyProtocolOwnedPool onlyImplementationOperators {
        _RState_ = uint32(newState);
        emit RChange(newState);
    }

    function ratioSync() external nonReentrant onlyClones onlyProtocolOwnedPool onlyImplementationOperators {
        uint256 baseBalance = _BASE_TOKEN_.balanceOf(address(this));
        uint256 quoteBalance = _QUOTE_TOKEN_.balanceOf(address(this));

        if (baseBalance > type(uint112).max || quoteBalance > type(uint112).max) {
            revert ErrOverflow();
        }

        if (baseBalance != _BASE_RESERVE_) {
            _BASE_TARGET_ = uint112((uint256(_BASE_TARGET_) * baseBalance) / uint256(_BASE_RESERVE_));
            _BASE_RESERVE_ = uint112(baseBalance);
        }
        if (quoteBalance != _QUOTE_RESERVE_) {
            _QUOTE_TARGET_ = uint112((uint256(_QUOTE_TARGET_) * quoteBalance) / uint256(_QUOTE_RESERVE_));
            _QUOTE_RESERVE_ = uint112(quoteBalance);
        }

        if (_BASE_TARGET_ == 0 || _QUOTE_TARGET_ == 0) {
            revert ErrInvalidTargets();
        }
    }

    //////////////////////////////////////////////////////////////////////////////////////
    /// INTERNALS
    //////////////////////////////////////////////////////////////////////////////////////

    function _resetTargetAndReserve() internal returns (uint256 baseBalance, uint256 quoteBalance) {
        baseBalance = _BASE_TOKEN_.balanceOf(address(this));
        quoteBalance = _QUOTE_TOKEN_.balanceOf(address(this));

        if (baseBalance > type(uint112).max || quoteBalance > type(uint112).max) {
            revert ErrOverflow();
        }

        _BASE_RESERVE_ = uint112(baseBalance);
        _QUOTE_RESERVE_ = uint112(quoteBalance);
        _BASE_TARGET_ = uint112(baseBalance);
        _QUOTE_TARGET_ = uint112(quoteBalance);
        _RState_ = uint32(PMMPricing.RState.ONE);
    }

    function _setReserve(uint256 baseReserve, uint256 quoteReserve) internal {
        _BASE_RESERVE_ = baseReserve.toUint112();
        _QUOTE_RESERVE_ = quoteReserve.toUint112();
    }

    function _sync() internal {
        uint256 baseBalance = _BASE_TOKEN_.balanceOf(address(this));
        uint256 quoteBalance = _QUOTE_TOKEN_.balanceOf(address(this));

        if (baseBalance != _BASE_RESERVE_) {
            _BASE_RESERVE_ = baseBalance.toUint112();
        }
        if (quoteBalance != _QUOTE_RESERVE_) {
            _QUOTE_RESERVE_ = quoteBalance.toUint112();
        }
    }

    function _transferBaseOut(address to, uint256 amount) internal {
        if (amount > 0) {
            _BASE_TOKEN_.safeTransfer(to, amount);
        }
    }

    function _transferQuoteOut(address to, uint256 amount) internal {
        if (amount > 0) {
            _QUOTE_TOKEN_.safeTransfer(to, amount);
        }
    }

    function _mint(address to, uint256 amount) internal override {
        if (amount <= 1000) {
            revert ErrMintAmountNotEnough();
        }

        super._mint(to, amount);
    }

    function _afterInitialized() internal virtual {}

    //////////////////////////////////////////////////////////////////////////////////////
    /// MODIFIERS
    //////////////////////////////////////////////////////////////////////////////////////

    modifier onlyImplementationOwner() {
        if (msg.sender != implementation.owner()) {
            revert ErrNotImplementationOwner();
        }
        _;
    }

    /// @dev owner is always considered an operator
    modifier onlyImplementationOperators() {
        if (!isImplementationOperator(msg.sender)) {
            revert ErrNotAllowedImplementationOperator();
        }
        _;
    }

    /// @dev can only be called on a clone contract
    modifier onlyClones() {
        if (address(this) == address(implementation)) {
            revert ErrNotClone();
        }
        _;
    }

    /// @dev can only be called on the implementation contract
    modifier onlyImplementation() {
        if (address(this) != address(implementation)) {
            revert ErrNotImplementation();
        }
        _;
    }

    modifier onlyProtocolOwnedPool() {
        if (!_PROTOCOL_OWNED_POOL_) {
            revert ErrNotAllowed();
        }
        _;
    }

    modifier whenPaused() {
        if (!_PAUSED_) {
            revert ErrNotPaused();
        }
        _;
    }

    /// @dev When it's a paused protocol owned pool,
    /// only the implementation operators can call the function
    /// A normal pool can never be paused.
    modifier whenNotPaused() {
        if (_PROTOCOL_OWNED_POOL_ && _PAUSED_ && !isImplementationOperator(msg.sender)) {
            revert ErrNotAllowedImplementationOperator();
        }
        _;
    }
}

// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.8.0;

import {IBlast, IERC20Rebasing, YieldMode, GasMode} from "interfaces/IBlast.sol";
import {Address} from "openzeppelin-contracts/utils/Address.sol";

library BlastYields {
    event LogBlastGasClaimed(address indexed recipient, uint256 amount);
    event LogBlastETHClaimed(address indexed recipient, uint256 amount);
    event LogBlastTokenClaimed(address indexed recipient, address indexed token, uint256 amount);
    event LogBlastTokenClaimableEnabled(address indexed contractAddress, address indexed token);
    event LogBlastNativeClaimableEnabled(address indexed contractAddress);

    IBlast constant BLAST_YIELD_PRECOMPILE = IBlast(0x4300000000000000000000000000000000000002);

    //////////////////////////////////////////////////////////////////////////////////////
    // CONFIGURATION
    //////////////////////////////////////////////////////////////////////////////////////

    function enableTokenClaimable(address token) internal {
        if (IERC20Rebasing(token).getConfiguration(address(this)) == YieldMode.CLAIMABLE) {
            return;
        }

        IERC20Rebasing(token).configure(YieldMode.CLAIMABLE);
        emit LogBlastTokenClaimableEnabled(address(this), token);
    }

    function configureDefaultClaimables(address governor_) internal {
        BLAST_YIELD_PRECOMPILE.configure(YieldMode.CLAIMABLE, GasMode.CLAIMABLE, governor_);
        emit LogBlastNativeClaimableEnabled(address(this));
    }

    //////////////////////////////////////////////////////////////////////////////////////
    // GAS CLAIMING
    //////////////////////////////////////////////////////////////////////////////////////
    
    function claimMaxGasYields(address recipient) internal returns (uint256) {
        return claimMaxGasYields(address(this), recipient);
    }

    function claimMaxGasYields(address contractAddress, address recipient) internal returns (uint256 amount) {
        amount = BLAST_YIELD_PRECOMPILE.claimMaxGas(contractAddress, recipient);
        emit LogBlastGasClaimed(recipient, amount);
    }

    //////////////////////////////////////////////////////////////////////////////////////
    // NATIVE CLAIMING
    //////////////////////////////////////////////////////////////////////////////////////<

    function claimAllNativeYields(address recipient) internal returns (uint256 amount) {
        return claimAllNativeYields(address(this), recipient);
    }

    function claimAllNativeYields(address contractAddress, address recipient) internal returns (uint256 amount) {
        amount = BLAST_YIELD_PRECOMPILE.claimAllYield(contractAddress, recipient);
        emit LogBlastETHClaimed(recipient, amount);
    }

    function claimNativeYields(address contractAddress, uint256 amount, address recipient) internal returns (uint256) {
        amount = BLAST_YIELD_PRECOMPILE.claimYield(contractAddress, recipient, amount);
        emit LogBlastETHClaimed(recipient, amount);
        return amount;
    }

    //////////////////////////////////////////////////////////////////////////////////////
    // TOKENS CLAIMING
    //////////////////////////////////////////////////////////////////////////////////////

    function claimAllTokenYields(address token, address recipient) internal returns (uint256 amount) {
        amount = IERC20Rebasing(token).claim(recipient, IERC20Rebasing(token).getClaimableAmount(address(this)));
        emit LogBlastTokenClaimed(recipient, address(token), amount);
    }

    function claimTokenYields(address token, uint256 amount, address recipient) internal returns (uint256) {
        amount = IERC20Rebasing(token).claim(recipient, amount);
        emit LogBlastTokenClaimed(recipient, address(token), amount);
        return amount;
    }

    //////////////////////////////////////////////////////////////////////////////////////
    // ARBITRARY PRECOMPILE CALLS
    // Meant to be used for any other calls to the precompile not covered by the above
    //////////////////////////////////////////////////////////////////////////////////////

    function callPrecompile(bytes calldata data) internal {
        Address.functionCall(address(BLAST_YIELD_PRECOMPILE), data);
    }
}

// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.8.0;

import {IBlastPoints} from "interfaces/IBlast.sol";

library BlastPoints {
    address public constant BLAST_POINTS_OPERATOR = 0xD1025F1359422Ca16D9084908d629E0dBa60ff28;
    IBlastPoints public constant BLAST_POINTS = IBlastPoints(0x2536FE9ab3F511540F2f9e2eC2A805005C3Dd800);

    function configure() internal {
        BLAST_POINTS.configurePointsOperator(BLAST_POINTS_OPERATOR);
    }
}

// SPDX-License-Identifier: MIT
pragma solidity >=0.8.0;

import {Owned} from "solmate/auth/Owned.sol";

contract BlastTokenRegistry is Owned {
    event LogNativeYieldTokenEnabled(address indexed token, bool enabled);
    error ErrZeroAddress();

    mapping(address => bool) public nativeYieldTokens;

    constructor(address _owner) Owned(_owner) {}

    function setNativeYieldTokenEnabled(address token, bool enabled) external onlyOwner {
        if (token == address(0)) {
            revert ErrZeroAddress();
        }

        nativeYieldTokens[token] = enabled;
        emit LogNativeYieldTokenEnabled(token, enabled);
    }
}

// SPDX-License-Identifier: AGPL-3.0-only
pragma solidity >=0.8.0;

/// @notice Simple single owner authorization mixin.
/// @author Solmate (https://github.com/transmissions11/solmate/blob/main/src/auth/Owned.sol)
abstract contract Owned {
    /*//////////////////////////////////////////////////////////////
                                 EVENTS
    //////////////////////////////////////////////////////////////*/

    event OwnershipTransferred(address indexed user, address indexed newOwner);

    /*//////////////////////////////////////////////////////////////
                            OWNERSHIP STORAGE
    //////////////////////////////////////////////////////////////*/

    address public owner;

    modifier onlyOwner() virtual {
        require(msg.sender == owner, "UNAUTHORIZED");

        _;
    }

    /*//////////////////////////////////////////////////////////////
                               CONSTRUCTOR
    //////////////////////////////////////////////////////////////*/

    constructor(address _owner) {
        owner = _owner;

        emit OwnershipTransferred(address(0), _owner);
    }

    /*//////////////////////////////////////////////////////////////
                             OWNERSHIP LOGIC
    //////////////////////////////////////////////////////////////*/

    function transferOwnership(address newOwner) public virtual onlyOwner {
        owner = newOwner;

        emit OwnershipTransferred(msg.sender, newOwner);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (interfaces/IERC20Metadata.sol)

pragma solidity ^0.8.0;

import "../token/ERC20/extensions/IERC20Metadata.sol";

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;

/// @notice Safe ETH and ERC20 transfer library that gracefully handles missing return values.
/// @author Solady (https://github.com/vectorized/solady/blob/main/src/utils/SafeTransferLib.sol)
/// @author Modified from Solmate (https://github.com/transmissions11/solmate/blob/main/src/utils/SafeTransferLib.sol)
///
/// @dev Note:
/// - For ETH transfers, please use `forceSafeTransferETH` for DoS protection.
/// - For ERC20s, this implementation won't check that a token has code,
///   responsibility is delegated to the caller.
library SafeTransferLib {
    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                       CUSTOM ERRORS                        */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev The ETH transfer has failed.
    error ETHTransferFailed();

    /// @dev The ERC20 `transferFrom` has failed.
    error TransferFromFailed();

    /// @dev The ERC20 `transfer` has failed.
    error TransferFailed();

    /// @dev The ERC20 `approve` has failed.
    error ApproveFailed();

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                         CONSTANTS                          */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev Suggested gas stipend for contract receiving ETH that disallows any storage writes.
    uint256 internal constant GAS_STIPEND_NO_STORAGE_WRITES = 2300;

    /// @dev Suggested gas stipend for contract receiving ETH to perform a few
    /// storage reads and writes, but low enough to prevent griefing.
    uint256 internal constant GAS_STIPEND_NO_GRIEF = 100000;

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                       ETH OPERATIONS                       */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    // If the ETH transfer MUST succeed with a reasonable gas budget, use the force variants.
    //
    // The regular variants:
    // - Forwards all remaining gas to the target.
    // - Reverts if the target reverts.
    // - Reverts if the current contract has insufficient balance.
    //
    // The force variants:
    // - Forwards with an optional gas stipend
    //   (defaults to `GAS_STIPEND_NO_GRIEF`, which is sufficient for most cases).
    // - If the target reverts, or if the gas stipend is exhausted,
    //   creates a temporary contract to force send the ETH via `SELFDESTRUCT`.
    //   Future compatible with `SENDALL`: https://eips.ethereum.org/EIPS/eip-4758.
    // - Reverts if the current contract has insufficient balance.
    //
    // The try variants:
    // - Forwards with a mandatory gas stipend.
    // - Instead of reverting, returns whether the transfer succeeded.

    /// @dev Sends `amount` (in wei) ETH to `to`.
    function safeTransferETH(address to, uint256 amount) internal {
        /// @solidity memory-safe-assembly
        assembly {
            if iszero(call(gas(), to, amount, codesize(), 0x00, codesize(), 0x00)) {
                mstore(0x00, 0xb12d13eb) // `ETHTransferFailed()`.
                revert(0x1c, 0x04)
            }
        }
    }

    /// @dev Sends all the ETH in the current contract to `to`.
    function safeTransferAllETH(address to) internal {
        /// @solidity memory-safe-assembly
        assembly {
            // Transfer all the ETH and check if it succeeded or not.
            if iszero(call(gas(), to, selfbalance(), codesize(), 0x00, codesize(), 0x00)) {
                mstore(0x00, 0xb12d13eb) // `ETHTransferFailed()`.
                revert(0x1c, 0x04)
            }
        }
    }

    /// @dev Force sends `amount` (in wei) ETH to `to`, with a `gasStipend`.
    function forceSafeTransferETH(address to, uint256 amount, uint256 gasStipend) internal {
        /// @solidity memory-safe-assembly
        assembly {
            if lt(selfbalance(), amount) {
                mstore(0x00, 0xb12d13eb) // `ETHTransferFailed()`.
                revert(0x1c, 0x04)
            }
            if iszero(call(gasStipend, to, amount, codesize(), 0x00, codesize(), 0x00)) {
                mstore(0x00, to) // Store the address in scratch space.
                mstore8(0x0b, 0x73) // Opcode `PUSH20`.
                mstore8(0x20, 0xff) // Opcode `SELFDESTRUCT`.
                if iszero(create(amount, 0x0b, 0x16)) { revert(codesize(), codesize()) } // For gas estimation.
            }
        }
    }

    /// @dev Force sends all the ETH in the current contract to `to`, with a `gasStipend`.
    function forceSafeTransferAllETH(address to, uint256 gasStipend) internal {
        /// @solidity memory-safe-assembly
        assembly {
            if iszero(call(gasStipend, to, selfbalance(), codesize(), 0x00, codesize(), 0x00)) {
                mstore(0x00, to) // Store the address in scratch space.
                mstore8(0x0b, 0x73) // Opcode `PUSH20`.
                mstore8(0x20, 0xff) // Opcode `SELFDESTRUCT`.
                if iszero(create(selfbalance(), 0x0b, 0x16)) { revert(codesize(), codesize()) } // For gas estimation.
            }
        }
    }

    /// @dev Force sends `amount` (in wei) ETH to `to`, with `GAS_STIPEND_NO_GRIEF`.
    function forceSafeTransferETH(address to, uint256 amount) internal {
        /// @solidity memory-safe-assembly
        assembly {
            if lt(selfbalance(), amount) {
                mstore(0x00, 0xb12d13eb) // `ETHTransferFailed()`.
                revert(0x1c, 0x04)
            }
            if iszero(call(GAS_STIPEND_NO_GRIEF, to, amount, codesize(), 0x00, codesize(), 0x00)) {
                mstore(0x00, to) // Store the address in scratch space.
                mstore8(0x0b, 0x73) // Opcode `PUSH20`.
                mstore8(0x20, 0xff) // Opcode `SELFDESTRUCT`.
                if iszero(create(amount, 0x0b, 0x16)) { revert(codesize(), codesize()) } // For gas estimation.
            }
        }
    }

    /// @dev Force sends all the ETH in the current contract to `to`, with `GAS_STIPEND_NO_GRIEF`.
    function forceSafeTransferAllETH(address to) internal {
        /// @solidity memory-safe-assembly
        assembly {
            // forgefmt: disable-next-item
            if iszero(call(GAS_STIPEND_NO_GRIEF, to, selfbalance(), codesize(), 0x00, codesize(), 0x00)) {
                mstore(0x00, to) // Store the address in scratch space.
                mstore8(0x0b, 0x73) // Opcode `PUSH20`.
                mstore8(0x20, 0xff) // Opcode `SELFDESTRUCT`.
                if iszero(create(selfbalance(), 0x0b, 0x16)) { revert(codesize(), codesize()) } // For gas estimation.
            }
        }
    }

    /// @dev Sends `amount` (in wei) ETH to `to`, with a `gasStipend`.
    function trySafeTransferETH(address to, uint256 amount, uint256 gasStipend)
        internal
        returns (bool success)
    {
        /// @solidity memory-safe-assembly
        assembly {
            success := call(gasStipend, to, amount, codesize(), 0x00, codesize(), 0x00)
        }
    }

    /// @dev Sends all the ETH in the current contract to `to`, with a `gasStipend`.
    function trySafeTransferAllETH(address to, uint256 gasStipend)
        internal
        returns (bool success)
    {
        /// @solidity memory-safe-assembly
        assembly {
            success := call(gasStipend, to, selfbalance(), codesize(), 0x00, codesize(), 0x00)
        }
    }

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                      ERC20 OPERATIONS                      */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev Sends `amount` of ERC20 `token` from `from` to `to`.
    /// Reverts upon failure.
    ///
    /// The `from` account must have at least `amount` approved for
    /// the current contract to manage.
    function safeTransferFrom(address token, address from, address to, uint256 amount) internal {
        /// @solidity memory-safe-assembly
        assembly {
            let m := mload(0x40) // Cache the free memory pointer.
            mstore(0x60, amount) // Store the `amount` argument.
            mstore(0x40, to) // Store the `to` argument.
            mstore(0x2c, shl(96, from)) // Store the `from` argument.
            mstore(0x0c, 0x23b872dd000000000000000000000000) // `transferFrom(address,address,uint256)`.
            // Perform the transfer, reverting upon failure.
            if iszero(
                and( // The arguments of `and` are evaluated from right to left.
                    or(eq(mload(0x00), 1), iszero(returndatasize())), // Returned 1 or nothing.
                    call(gas(), token, 0, 0x1c, 0x64, 0x00, 0x20)
                )
            ) {
                mstore(0x00, 0x7939f424) // `TransferFromFailed()`.
                revert(0x1c, 0x04)
            }
            mstore(0x60, 0) // Restore the zero slot to zero.
            mstore(0x40, m) // Restore the free memory pointer.
        }
    }

    /// @dev Sends all of ERC20 `token` from `from` to `to`.
    /// Reverts upon failure.
    ///
    /// The `from` account must have their entire balance approved for
    /// the current contract to manage.
    function safeTransferAllFrom(address token, address from, address to)
        internal
        returns (uint256 amount)
    {
        /// @solidity memory-safe-assembly
        assembly {
            let m := mload(0x40) // Cache the free memory pointer.
            mstore(0x40, to) // Store the `to` argument.
            mstore(0x2c, shl(96, from)) // Store the `from` argument.
            mstore(0x0c, 0x70a08231000000000000000000000000) // `balanceOf(address)`.
            // Read the balance, reverting upon failure.
            if iszero(
                and( // The arguments of `and` are evaluated from right to left.
                    gt(returndatasize(), 0x1f), // At least 32 bytes returned.
                    staticcall(gas(), token, 0x1c, 0x24, 0x60, 0x20)
                )
            ) {
                mstore(0x00, 0x7939f424) // `TransferFromFailed()`.
                revert(0x1c, 0x04)
            }
            mstore(0x00, 0x23b872dd) // `transferFrom(address,address,uint256)`.
            amount := mload(0x60) // The `amount` is already at 0x60. We'll need to return it.
            // Perform the transfer, reverting upon failure.
            if iszero(
                and( // The arguments of `and` are evaluated from right to left.
                    or(eq(mload(0x00), 1), iszero(returndatasize())), // Returned 1 or nothing.
                    call(gas(), token, 0, 0x1c, 0x64, 0x00, 0x20)
                )
            ) {
                mstore(0x00, 0x7939f424) // `TransferFromFailed()`.
                revert(0x1c, 0x04)
            }
            mstore(0x60, 0) // Restore the zero slot to zero.
            mstore(0x40, m) // Restore the free memory pointer.
        }
    }

    /// @dev Sends `amount` of ERC20 `token` from the current contract to `to`.
    /// Reverts upon failure.
    function safeTransfer(address token, address to, uint256 amount) internal {
        /// @solidity memory-safe-assembly
        assembly {
            mstore(0x14, to) // Store the `to` argument.
            mstore(0x34, amount) // Store the `amount` argument.
            mstore(0x00, 0xa9059cbb000000000000000000000000) // `transfer(address,uint256)`.
            // Perform the transfer, reverting upon failure.
            if iszero(
                and( // The arguments of `and` are evaluated from right to left.
                    or(eq(mload(0x00), 1), iszero(returndatasize())), // Returned 1 or nothing.
                    call(gas(), token, 0, 0x10, 0x44, 0x00, 0x20)
                )
            ) {
                mstore(0x00, 0x90b8ec18) // `TransferFailed()`.
                revert(0x1c, 0x04)
            }
            mstore(0x34, 0) // Restore the part of the free memory pointer that was overwritten.
        }
    }

    /// @dev Sends all of ERC20 `token` from the current contract to `to`.
    /// Reverts upon failure.
    function safeTransferAll(address token, address to) internal returns (uint256 amount) {
        /// @solidity memory-safe-assembly
        assembly {
            mstore(0x00, 0x70a08231) // Store the function selector of `balanceOf(address)`.
            mstore(0x20, address()) // Store the address of the current contract.
            // Read the balance, reverting upon failure.
            if iszero(
                and( // The arguments of `and` are evaluated from right to left.
                    gt(returndatasize(), 0x1f), // At least 32 bytes returned.
                    staticcall(gas(), token, 0x1c, 0x24, 0x34, 0x20)
                )
            ) {
                mstore(0x00, 0x90b8ec18) // `TransferFailed()`.
                revert(0x1c, 0x04)
            }
            mstore(0x14, to) // Store the `to` argument.
            amount := mload(0x34) // The `amount` is already at 0x34. We'll need to return it.
            mstore(0x00, 0xa9059cbb000000000000000000000000) // `transfer(address,uint256)`.
            // Perform the transfer, reverting upon failure.
            if iszero(
                and( // The arguments of `and` are evaluated from right to left.
                    or(eq(mload(0x00), 1), iszero(returndatasize())), // Returned 1 or nothing.
                    call(gas(), token, 0, 0x10, 0x44, 0x00, 0x20)
                )
            ) {
                mstore(0x00, 0x90b8ec18) // `TransferFailed()`.
                revert(0x1c, 0x04)
            }
            mstore(0x34, 0) // Restore the part of the free memory pointer that was overwritten.
        }
    }

    /// @dev Sets `amount` of ERC20 `token` for `to` to manage on behalf of the current contract.
    /// Reverts upon failure.
    function safeApprove(address token, address to, uint256 amount) internal {
        /// @solidity memory-safe-assembly
        assembly {
            mstore(0x14, to) // Store the `to` argument.
            mstore(0x34, amount) // Store the `amount` argument.
            mstore(0x00, 0x095ea7b3000000000000000000000000) // `approve(address,uint256)`.
            // Perform the approval, reverting upon failure.
            if iszero(
                and( // The arguments of `and` are evaluated from right to left.
                    or(eq(mload(0x00), 1), iszero(returndatasize())), // Returned 1 or nothing.
                    call(gas(), token, 0, 0x10, 0x44, 0x00, 0x20)
                )
            ) {
                mstore(0x00, 0x3e3f8f73) // `ApproveFailed()`.
                revert(0x1c, 0x04)
            }
            mstore(0x34, 0) // Restore the part of the free memory pointer that was overwritten.
        }
    }

    /// @dev Sets `amount` of ERC20 `token` for `to` to manage on behalf of the current contract.
    /// If the initial attempt to approve fails, attempts to reset the approved amount to zero,
    /// then retries the approval again (some tokens, e.g. USDT, requires this).
    /// Reverts upon failure.
    function safeApproveWithRetry(address token, address to, uint256 amount) internal {
        /// @solidity memory-safe-assembly
        assembly {
            mstore(0x14, to) // Store the `to` argument.
            mstore(0x34, amount) // Store the `amount` argument.
            mstore(0x00, 0x095ea7b3000000000000000000000000) // `approve(address,uint256)`.
            // Perform the approval, retrying upon failure.
            if iszero(
                and( // The arguments of `and` are evaluated from right to left.
                    or(eq(mload(0x00), 1), iszero(returndatasize())), // Returned 1 or nothing.
                    call(gas(), token, 0, 0x10, 0x44, 0x00, 0x20)
                )
            ) {
                mstore(0x34, 0) // Store 0 for the `amount`.
                mstore(0x00, 0x095ea7b3000000000000000000000000) // `approve(address,uint256)`.
                pop(call(gas(), token, 0, 0x10, 0x44, codesize(), 0x00)) // Reset the approval.
                mstore(0x34, amount) // Store back the original `amount`.
                // Retry the approval, reverting upon failure.
                if iszero(
                    and(
                        or(eq(mload(0x00), 1), iszero(returndatasize())), // Returned 1 or nothing.
                        call(gas(), token, 0, 0x10, 0x44, 0x00, 0x20)
                    )
                ) {
                    mstore(0x00, 0x3e3f8f73) // `ApproveFailed()`.
                    revert(0x1c, 0x04)
                }
            }
            mstore(0x34, 0) // Restore the part of the free memory pointer that was overwritten.
        }
    }

    /// @dev Returns the amount of ERC20 `token` owned by `account`.
    /// Returns zero if the `token` does not exist.
    function balanceOf(address token, address account) internal view returns (uint256 amount) {
        /// @solidity memory-safe-assembly
        assembly {
            mstore(0x14, account) // Store the `account` argument.
            mstore(0x00, 0x70a08231000000000000000000000000) // `balanceOf(address)`.
            amount :=
                mul(
                    mload(0x20),
                    and( // The arguments of `and` are evaluated from right to left.
                        gt(returndatasize(), 0x1f), // At least 32 bytes returned.
                        staticcall(gas(), token, 0x10, 0x24, 0x20, 0x20)
                    )
                )
        }
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;

/// @notice Reentrancy guard mixin.
/// @author Solady (https://github.com/vectorized/solady/blob/main/src/utils/ReentrancyGuard.sol)
abstract contract ReentrancyGuard {
    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                       CUSTOM ERRORS                        */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev Unauthorized reentrant call.
    error Reentrancy();

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                          STORAGE                           */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev Equivalent to: `uint72(bytes9(keccak256("_REENTRANCY_GUARD_SLOT")))`.
    /// 9 bytes is large enough to avoid collisions with lower slots,
    /// but not too large to result in excessive bytecode bloat.
    uint256 private constant _REENTRANCY_GUARD_SLOT = 0x929eee149b4bd21268;

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                      REENTRANCY GUARD                      */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev Guards a function from reentrancy.
    modifier nonReentrant() virtual {
        /// @solidity memory-safe-assembly
        assembly {
            if eq(sload(_REENTRANCY_GUARD_SLOT), address()) {
                mstore(0x00, 0xab143c06) // `Reentrancy()`.
                revert(0x1c, 0x04)
            }
            sstore(_REENTRANCY_GUARD_SLOT, address())
        }
        _;
        /// @solidity memory-safe-assembly
        assembly {
            sstore(_REENTRANCY_GUARD_SLOT, codesize())
        }
    }

    /// @dev Guards a view function from read-only reentrancy.
    modifier nonReadReentrant() virtual {
        /// @solidity memory-safe-assembly
        assembly {
            if eq(sload(_REENTRANCY_GUARD_SLOT), address()) {
                mstore(0x00, 0xab143c06) // `Reentrancy()`.
                revert(0x1c, 0x04)
            }
        }
        _;
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;

/// @notice Simple ERC20 + EIP-2612 implementation.
/// @author Solady (https://github.com/vectorized/solady/blob/main/src/tokens/ERC20.sol)
/// @author Modified from Solmate (https://github.com/transmissions11/solmate/blob/main/src/tokens/ERC20.sol)
/// @author Modified from OpenZeppelin (https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/token/ERC20/ERC20.sol)
///
/// @dev Note:
/// - The ERC20 standard allows minting and transferring to and from the zero address,
///   minting and transferring zero tokens, as well as self-approvals.
///   For performance, this implementation WILL NOT revert for such actions.
///   Please add any checks with overrides if desired.
/// - The `permit` function uses the ecrecover precompile (0x1).
///
/// If you are overriding:
/// - NEVER violate the ERC20 invariant:
///   the total sum of all balances must be equal to `totalSupply()`.
/// - Check that the overridden function is actually used in the function you want to
///   change the behavior of. Much of the code has been manually inlined for performance.
abstract contract ERC20 {
    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                       CUSTOM ERRORS                        */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev The total supply has overflowed.
    error TotalSupplyOverflow();

    /// @dev The allowance has overflowed.
    error AllowanceOverflow();

    /// @dev The allowance has underflowed.
    error AllowanceUnderflow();

    /// @dev Insufficient balance.
    error InsufficientBalance();

    /// @dev Insufficient allowance.
    error InsufficientAllowance();

    /// @dev The permit is invalid.
    error InvalidPermit();

    /// @dev The permit has expired.
    error PermitExpired();

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                           EVENTS                           */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev Emitted when `amount` tokens is transferred from `from` to `to`.
    event Transfer(address indexed from, address indexed to, uint256 amount);

    /// @dev Emitted when `amount` tokens is approved by `owner` to be used by `spender`.
    event Approval(address indexed owner, address indexed spender, uint256 amount);

    /// @dev `keccak256(bytes("Transfer(address,address,uint256)"))`.
    uint256 private constant _TRANSFER_EVENT_SIGNATURE =
        0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef;

    /// @dev `keccak256(bytes("Approval(address,address,uint256)"))`.
    uint256 private constant _APPROVAL_EVENT_SIGNATURE =
        0x8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925;

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                          STORAGE                           */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev The storage slot for the total supply.
    uint256 private constant _TOTAL_SUPPLY_SLOT = 0x05345cdf77eb68f44c;

    /// @dev The balance slot of `owner` is given by:
    /// ```
    ///     mstore(0x0c, _BALANCE_SLOT_SEED)
    ///     mstore(0x00, owner)
    ///     let balanceSlot := keccak256(0x0c, 0x20)
    /// ```
    uint256 private constant _BALANCE_SLOT_SEED = 0x87a211a2;

    /// @dev The allowance slot of (`owner`, `spender`) is given by:
    /// ```
    ///     mstore(0x20, spender)
    ///     mstore(0x0c, _ALLOWANCE_SLOT_SEED)
    ///     mstore(0x00, owner)
    ///     let allowanceSlot := keccak256(0x0c, 0x34)
    /// ```
    uint256 private constant _ALLOWANCE_SLOT_SEED = 0x7f5e9f20;

    /// @dev The nonce slot of `owner` is given by:
    /// ```
    ///     mstore(0x0c, _NONCES_SLOT_SEED)
    ///     mstore(0x00, owner)
    ///     let nonceSlot := keccak256(0x0c, 0x20)
    /// ```
    uint256 private constant _NONCES_SLOT_SEED = 0x38377508;

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                         CONSTANTS                          */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev `(_NONCES_SLOT_SEED << 16) | 0x1901`.
    uint256 private constant _NONCES_SLOT_SEED_WITH_SIGNATURE_PREFIX = 0x383775081901;

    /// @dev `keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)")`.
    bytes32 private constant _DOMAIN_TYPEHASH =
        0x8b73c3c69bb8fe3d512ecc4cf759cc79239f7b179b0ffacaa9a75d522b39400f;

    /// @dev `keccak256("1")`.
    bytes32 private constant _VERSION_HASH =
        0xc89efdaa54c0f20c7adf612882df0950f5a951637e0307cdcb4c672f298b8bc6;

    /// @dev `keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)")`.
    bytes32 private constant _PERMIT_TYPEHASH =
        0x6e71edae12b1b97f4d1f60370fef10105fa2faae0126114a169c64845d6126c9;

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                       ERC20 METADATA                       */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev Returns the name of the token.
    function name() public view virtual returns (string memory);

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

    /// @dev Returns the decimals places of the token.
    function decimals() public view virtual returns (uint8) {
        return 18;
    }

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                           ERC20                            */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev Returns the amount of tokens in existence.
    function totalSupply() public view virtual returns (uint256 result) {
        /// @solidity memory-safe-assembly
        assembly {
            result := sload(_TOTAL_SUPPLY_SLOT)
        }
    }

    /// @dev Returns the amount of tokens owned by `owner`.
    function balanceOf(address owner) public view virtual returns (uint256 result) {
        /// @solidity memory-safe-assembly
        assembly {
            mstore(0x0c, _BALANCE_SLOT_SEED)
            mstore(0x00, owner)
            result := sload(keccak256(0x0c, 0x20))
        }
    }

    /// @dev Returns the amount of tokens that `spender` can spend on behalf of `owner`.
    function allowance(address owner, address spender)
        public
        view
        virtual
        returns (uint256 result)
    {
        /// @solidity memory-safe-assembly
        assembly {
            mstore(0x20, spender)
            mstore(0x0c, _ALLOWANCE_SLOT_SEED)
            mstore(0x00, owner)
            result := sload(keccak256(0x0c, 0x34))
        }
    }

    /// @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
    ///
    /// Emits a {Approval} event.
    function approve(address spender, uint256 amount) public virtual returns (bool) {
        /// @solidity memory-safe-assembly
        assembly {
            // Compute the allowance slot and store the amount.
            mstore(0x20, spender)
            mstore(0x0c, _ALLOWANCE_SLOT_SEED)
            mstore(0x00, caller())
            sstore(keccak256(0x0c, 0x34), amount)
            // Emit the {Approval} event.
            mstore(0x00, amount)
            log3(0x00, 0x20, _APPROVAL_EVENT_SIGNATURE, caller(), shr(96, mload(0x2c)))
        }
        return true;
    }

    /// @dev Transfer `amount` tokens from the caller to `to`.
    ///
    /// Requirements:
    /// - `from` must at least have `amount`.
    ///
    /// Emits a {Transfer} event.
    function transfer(address to, uint256 amount) public virtual returns (bool) {
        _beforeTokenTransfer(msg.sender, to, amount);
        /// @solidity memory-safe-assembly
        assembly {
            // Compute the balance slot and load its value.
            mstore(0x0c, _BALANCE_SLOT_SEED)
            mstore(0x00, caller())
            let fromBalanceSlot := keccak256(0x0c, 0x20)
            let fromBalance := sload(fromBalanceSlot)
            // Revert if insufficient balance.
            if gt(amount, fromBalance) {
                mstore(0x00, 0xf4d678b8) // `InsufficientBalance()`.
                revert(0x1c, 0x04)
            }
            // Subtract and store the updated balance.
            sstore(fromBalanceSlot, sub(fromBalance, amount))
            // Compute the balance slot of `to`.
            mstore(0x00, to)
            let toBalanceSlot := keccak256(0x0c, 0x20)
            // Add and store the updated balance of `to`.
            // Will not overflow because the sum of all user balances
            // cannot exceed the maximum uint256 value.
            sstore(toBalanceSlot, add(sload(toBalanceSlot), amount))
            // Emit the {Transfer} event.
            mstore(0x20, amount)
            log3(0x20, 0x20, _TRANSFER_EVENT_SIGNATURE, caller(), shr(96, mload(0x0c)))
        }
        _afterTokenTransfer(msg.sender, to, amount);
        return true;
    }

    /// @dev Transfers `amount` tokens from `from` to `to`.
    ///
    /// Note: Does not update the allowance if it is the maximum uint256 value.
    ///
    /// Requirements:
    /// - `from` must at least have `amount`.
    /// - The caller must have at least `amount` of allowance to transfer the tokens of `from`.
    ///
    /// Emits a {Transfer} event.
    function transferFrom(address from, address to, uint256 amount) public virtual returns (bool) {
        _beforeTokenTransfer(from, to, amount);
        /// @solidity memory-safe-assembly
        assembly {
            let from_ := shl(96, from)
            // Compute the allowance slot and load its value.
            mstore(0x20, caller())
            mstore(0x0c, or(from_, _ALLOWANCE_SLOT_SEED))
            let allowanceSlot := keccak256(0x0c, 0x34)
            let allowance_ := sload(allowanceSlot)
            // If the allowance is not the maximum uint256 value.
            if add(allowance_, 1) {
                // Revert if the amount to be transferred exceeds the allowance.
                if gt(amount, allowance_) {
                    mstore(0x00, 0x13be252b) // `InsufficientAllowance()`.
                    revert(0x1c, 0x04)
                }
                // Subtract and store the updated allowance.
                sstore(allowanceSlot, sub(allowance_, amount))
            }
            // Compute the balance slot and load its value.
            mstore(0x0c, or(from_, _BALANCE_SLOT_SEED))
            let fromBalanceSlot := keccak256(0x0c, 0x20)
            let fromBalance := sload(fromBalanceSlot)
            // Revert if insufficient balance.
            if gt(amount, fromBalance) {
                mstore(0x00, 0xf4d678b8) // `InsufficientBalance()`.
                revert(0x1c, 0x04)
            }
            // Subtract and store the updated balance.
            sstore(fromBalanceSlot, sub(fromBalance, amount))
            // Compute the balance slot of `to`.
            mstore(0x00, to)
            let toBalanceSlot := keccak256(0x0c, 0x20)
            // Add and store the updated balance of `to`.
            // Will not overflow because the sum of all user balances
            // cannot exceed the maximum uint256 value.
            sstore(toBalanceSlot, add(sload(toBalanceSlot), amount))
            // Emit the {Transfer} event.
            mstore(0x20, amount)
            log3(0x20, 0x20, _TRANSFER_EVENT_SIGNATURE, shr(96, from_), shr(96, mload(0x0c)))
        }
        _afterTokenTransfer(from, to, amount);
        return true;
    }

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                          EIP-2612                          */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev For more performance, override to return the constant value
    /// of `keccak256(bytes(name()))` if `name()` will never change.
    function _constantNameHash() internal view virtual returns (bytes32 result) {}

    /// @dev Returns the current nonce for `owner`.
    /// This value is used to compute the signature for EIP-2612 permit.
    function nonces(address owner) public view virtual returns (uint256 result) {
        /// @solidity memory-safe-assembly
        assembly {
            // Compute the nonce slot and load its value.
            mstore(0x0c, _NONCES_SLOT_SEED)
            mstore(0x00, owner)
            result := sload(keccak256(0x0c, 0x20))
        }
    }

    /// @dev Sets `value` as the allowance of `spender` over the tokens of `owner`,
    /// authorized by a signed approval by `owner`.
    ///
    /// Emits a {Approval} event.
    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) public virtual {
        bytes32 nameHash = _constantNameHash();
        //  We simply calculate it on-the-fly to allow for cases where the `name` may change.
        if (nameHash == bytes32(0)) nameHash = keccak256(bytes(name()));
        /// @solidity memory-safe-assembly
        assembly {
            // Revert if the block timestamp is greater than `deadline`.
            if gt(timestamp(), deadline) {
                mstore(0x00, 0x1a15a3cc) // `PermitExpired()`.
                revert(0x1c, 0x04)
            }
            let m := mload(0x40) // Grab the free memory pointer.
            // Clean the upper 96 bits.
            owner := shr(96, shl(96, owner))
            spender := shr(96, shl(96, spender))
            // Compute the nonce slot and load its value.
            mstore(0x0e, _NONCES_SLOT_SEED_WITH_SIGNATURE_PREFIX)
            mstore(0x00, owner)
            let nonceSlot := keccak256(0x0c, 0x20)
            let nonceValue := sload(nonceSlot)
            // Prepare the domain separator.
            mstore(m, _DOMAIN_TYPEHASH)
            mstore(add(m, 0x20), nameHash)
            mstore(add(m, 0x40), _VERSION_HASH)
            mstore(add(m, 0x60), chainid())
            mstore(add(m, 0x80), address())
            mstore(0x2e, keccak256(m, 0xa0))
            // Prepare the struct hash.
            mstore(m, _PERMIT_TYPEHASH)
            mstore(add(m, 0x20), owner)
            mstore(add(m, 0x40), spender)
            mstore(add(m, 0x60), value)
            mstore(add(m, 0x80), nonceValue)
            mstore(add(m, 0xa0), deadline)
            mstore(0x4e, keccak256(m, 0xc0))
            // Prepare the ecrecover calldata.
            mstore(0x00, keccak256(0x2c, 0x42))
            mstore(0x20, and(0xff, v))
            mstore(0x40, r)
            mstore(0x60, s)
            let t := staticcall(gas(), 1, 0, 0x80, 0x20, 0x20)
            // If the ecrecover fails, the returndatasize will be 0x00,
            // `owner` will be checked if it equals the hash at 0x00,
            // which evaluates to false (i.e. 0), and we will revert.
            // If the ecrecover succeeds, the returndatasize will be 0x20,
            // `owner` will be compared against the returned address at 0x20.
            if iszero(eq(mload(returndatasize()), owner)) {
                mstore(0x00, 0xddafbaef) // `InvalidPermit()`.
                revert(0x1c, 0x04)
            }
            // Increment and store the updated nonce.
            sstore(nonceSlot, add(nonceValue, t)) // `t` is 1 if ecrecover succeeds.
            // Compute the allowance slot and store the value.
            // The `owner` is already at slot 0x20.
            mstore(0x40, or(shl(160, _ALLOWANCE_SLOT_SEED), spender))
            sstore(keccak256(0x2c, 0x34), value)
            // Emit the {Approval} event.
            log3(add(m, 0x60), 0x20, _APPROVAL_EVENT_SIGNATURE, owner, spender)
            mstore(0x40, m) // Restore the free memory pointer.
            mstore(0x60, 0) // Restore the zero pointer.
        }
    }

    /// @dev Returns the EIP-712 domain separator for the EIP-2612 permit.
    function DOMAIN_SEPARATOR() public view virtual returns (bytes32 result) {
        bytes32 nameHash = _constantNameHash();
        //  We simply calculate it on-the-fly to allow for cases where the `name` may change.
        if (nameHash == bytes32(0)) nameHash = keccak256(bytes(name()));
        /// @solidity memory-safe-assembly
        assembly {
            let m := mload(0x40) // Grab the free memory pointer.
            mstore(m, _DOMAIN_TYPEHASH)
            mstore(add(m, 0x20), nameHash)
            mstore(add(m, 0x40), _VERSION_HASH)
            mstore(add(m, 0x60), chainid())
            mstore(add(m, 0x80), address())
            result := keccak256(m, 0xa0)
        }
    }

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                  INTERNAL MINT FUNCTIONS                   */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev Mints `amount` tokens to `to`, increasing the total supply.
    ///
    /// Emits a {Transfer} event.
    function _mint(address to, uint256 amount) internal virtual {
        _beforeTokenTransfer(address(0), to, amount);
        /// @solidity memory-safe-assembly
        assembly {
            let totalSupplyBefore := sload(_TOTAL_SUPPLY_SLOT)
            let totalSupplyAfter := add(totalSupplyBefore, amount)
            // Revert if the total supply overflows.
            if lt(totalSupplyAfter, totalSupplyBefore) {
                mstore(0x00, 0xe5cfe957) // `TotalSupplyOverflow()`.
                revert(0x1c, 0x04)
            }
            // Store the updated total supply.
            sstore(_TOTAL_SUPPLY_SLOT, totalSupplyAfter)
            // Compute the balance slot and load its value.
            mstore(0x0c, _BALANCE_SLOT_SEED)
            mstore(0x00, to)
            let toBalanceSlot := keccak256(0x0c, 0x20)
            // Add and store the updated balance.
            sstore(toBalanceSlot, add(sload(toBalanceSlot), amount))
            // Emit the {Transfer} event.
            mstore(0x20, amount)
            log3(0x20, 0x20, _TRANSFER_EVENT_SIGNATURE, 0, shr(96, mload(0x0c)))
        }
        _afterTokenTransfer(address(0), to, amount);
    }

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                  INTERNAL BURN FUNCTIONS                   */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev Burns `amount` tokens from `from`, reducing the total supply.
    ///
    /// Emits a {Transfer} event.
    function _burn(address from, uint256 amount) internal virtual {
        _beforeTokenTransfer(from, address(0), amount);
        /// @solidity memory-safe-assembly
        assembly {
            // Compute the balance slot and load its value.
            mstore(0x0c, _BALANCE_SLOT_SEED)
            mstore(0x00, from)
            let fromBalanceSlot := keccak256(0x0c, 0x20)
            let fromBalance := sload(fromBalanceSlot)
            // Revert if insufficient balance.
            if gt(amount, fromBalance) {
                mstore(0x00, 0xf4d678b8) // `InsufficientBalance()`.
                revert(0x1c, 0x04)
            }
            // Subtract and store the updated balance.
            sstore(fromBalanceSlot, sub(fromBalance, amount))
            // Subtract and store the updated total supply.
            sstore(_TOTAL_SUPPLY_SLOT, sub(sload(_TOTAL_SUPPLY_SLOT), amount))
            // Emit the {Transfer} event.
            mstore(0x00, amount)
            log3(0x00, 0x20, _TRANSFER_EVENT_SIGNATURE, shr(96, shl(96, from)), 0)
        }
        _afterTokenTransfer(from, address(0), amount);
    }

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                INTERNAL TRANSFER FUNCTIONS                 */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev Moves `amount` of tokens from `from` to `to`.
    function _transfer(address from, address to, uint256 amount) internal virtual {
        _beforeTokenTransfer(from, to, amount);
        /// @solidity memory-safe-assembly
        assembly {
            let from_ := shl(96, from)
            // Compute the balance slot and load its value.
            mstore(0x0c, or(from_, _BALANCE_SLOT_SEED))
            let fromBalanceSlot := keccak256(0x0c, 0x20)
            let fromBalance := sload(fromBalanceSlot)
            // Revert if insufficient balance.
            if gt(amount, fromBalance) {
                mstore(0x00, 0xf4d678b8) // `InsufficientBalance()`.
                revert(0x1c, 0x04)
            }
            // Subtract and store the updated balance.
            sstore(fromBalanceSlot, sub(fromBalance, amount))
            // Compute the balance slot of `to`.
            mstore(0x00, to)
            let toBalanceSlot := keccak256(0x0c, 0x20)
            // Add and store the updated balance of `to`.
            // Will not overflow because the sum of all user balances
            // cannot exceed the maximum uint256 value.
            sstore(toBalanceSlot, add(sload(toBalanceSlot), amount))
            // Emit the {Transfer} event.
            mstore(0x20, amount)
            log3(0x20, 0x20, _TRANSFER_EVENT_SIGNATURE, shr(96, from_), shr(96, mload(0x0c)))
        }
        _afterTokenTransfer(from, to, amount);
    }

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                INTERNAL ALLOWANCE FUNCTIONS                */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev Updates the allowance of `owner` for `spender` based on spent `amount`.
    function _spendAllowance(address owner, address spender, uint256 amount) internal virtual {
        /// @solidity memory-safe-assembly
        assembly {
            // Compute the allowance slot and load its value.
            mstore(0x20, spender)
            mstore(0x0c, _ALLOWANCE_SLOT_SEED)
            mstore(0x00, owner)
            let allowanceSlot := keccak256(0x0c, 0x34)
            let allowance_ := sload(allowanceSlot)
            // If the allowance is not the maximum uint256 value.
            if add(allowance_, 1) {
                // Revert if the amount to be transferred exceeds the allowance.
                if gt(amount, allowance_) {
                    mstore(0x00, 0x13be252b) // `InsufficientAllowance()`.
                    revert(0x1c, 0x04)
                }
                // Subtract and store the updated allowance.
                sstore(allowanceSlot, sub(allowance_, amount))
            }
        }
    }

    /// @dev Sets `amount` as the allowance of `spender` over the tokens of `owner`.
    ///
    /// Emits a {Approval} event.
    function _approve(address owner, address spender, uint256 amount) internal virtual {
        /// @solidity memory-safe-assembly
        assembly {
            let owner_ := shl(96, owner)
            // Compute the allowance slot and store the amount.
            mstore(0x20, spender)
            mstore(0x0c, or(owner_, _ALLOWANCE_SLOT_SEED))
            sstore(keccak256(0x0c, 0x34), amount)
            // Emit the {Approval} event.
            mstore(0x00, amount)
            log3(0x00, 0x20, _APPROVAL_EVENT_SIGNATURE, shr(96, owner_), shr(96, mload(0x2c)))
        }
    }

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                     HOOKS TO OVERRIDE                      */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    /// @dev Hook that is called before any transfer of tokens.
    /// This includes minting and burning.
    function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual {}

    /// @dev Hook that is called after any transfer of tokens.
    /// This includes minting and burning.
    function _afterTokenTransfer(address from, address to, uint256 amount) internal virtual {}
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;

/// @notice Safe integer casting library that reverts on overflow.
/// @author Solady (https://github.com/vectorized/solady/blob/main/src/utils/SafeCastLib.sol)
/// @author Modified from OpenZeppelin (https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/utils/math/SafeCast.sol)
library SafeCastLib {
    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                       CUSTOM ERRORS                        */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    error Overflow();

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*          UNSIGNED INTEGER SAFE CASTING OPERATIONS          */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    function toUint8(uint256 x) internal pure returns (uint8) {
        if (x >= 1 << 8) _revertOverflow();
        return uint8(x);
    }

    function toUint16(uint256 x) internal pure returns (uint16) {
        if (x >= 1 << 16) _revertOverflow();
        return uint16(x);
    }

    function toUint24(uint256 x) internal pure returns (uint24) {
        if (x >= 1 << 24) _revertOverflow();
        return uint24(x);
    }

    function toUint32(uint256 x) internal pure returns (uint32) {
        if (x >= 1 << 32) _revertOverflow();
        return uint32(x);
    }

    function toUint40(uint256 x) internal pure returns (uint40) {
        if (x >= 1 << 40) _revertOverflow();
        return uint40(x);
    }

    function toUint48(uint256 x) internal pure returns (uint48) {
        if (x >= 1 << 48) _revertOverflow();
        return uint48(x);
    }

    function toUint56(uint256 x) internal pure returns (uint56) {
        if (x >= 1 << 56) _revertOverflow();
        return uint56(x);
    }

    function toUint64(uint256 x) internal pure returns (uint64) {
        if (x >= 1 << 64) _revertOverflow();
        return uint64(x);
    }

    function toUint72(uint256 x) internal pure returns (uint72) {
        if (x >= 1 << 72) _revertOverflow();
        return uint72(x);
    }

    function toUint80(uint256 x) internal pure returns (uint80) {
        if (x >= 1 << 80) _revertOverflow();
        return uint80(x);
    }

    function toUint88(uint256 x) internal pure returns (uint88) {
        if (x >= 1 << 88) _revertOverflow();
        return uint88(x);
    }

    function toUint96(uint256 x) internal pure returns (uint96) {
        if (x >= 1 << 96) _revertOverflow();
        return uint96(x);
    }

    function toUint104(uint256 x) internal pure returns (uint104) {
        if (x >= 1 << 104) _revertOverflow();
        return uint104(x);
    }

    function toUint112(uint256 x) internal pure returns (uint112) {
        if (x >= 1 << 112) _revertOverflow();
        return uint112(x);
    }

    function toUint120(uint256 x) internal pure returns (uint120) {
        if (x >= 1 << 120) _revertOverflow();
        return uint120(x);
    }

    function toUint128(uint256 x) internal pure returns (uint128) {
        if (x >= 1 << 128) _revertOverflow();
        return uint128(x);
    }

    function toUint136(uint256 x) internal pure returns (uint136) {
        if (x >= 1 << 136) _revertOverflow();
        return uint136(x);
    }

    function toUint144(uint256 x) internal pure returns (uint144) {
        if (x >= 1 << 144) _revertOverflow();
        return uint144(x);
    }

    function toUint152(uint256 x) internal pure returns (uint152) {
        if (x >= 1 << 152) _revertOverflow();
        return uint152(x);
    }

    function toUint160(uint256 x) internal pure returns (uint160) {
        if (x >= 1 << 160) _revertOverflow();
        return uint160(x);
    }

    function toUint168(uint256 x) internal pure returns (uint168) {
        if (x >= 1 << 168) _revertOverflow();
        return uint168(x);
    }

    function toUint176(uint256 x) internal pure returns (uint176) {
        if (x >= 1 << 176) _revertOverflow();
        return uint176(x);
    }

    function toUint184(uint256 x) internal pure returns (uint184) {
        if (x >= 1 << 184) _revertOverflow();
        return uint184(x);
    }

    function toUint192(uint256 x) internal pure returns (uint192) {
        if (x >= 1 << 192) _revertOverflow();
        return uint192(x);
    }

    function toUint200(uint256 x) internal pure returns (uint200) {
        if (x >= 1 << 200) _revertOverflow();
        return uint200(x);
    }

    function toUint208(uint256 x) internal pure returns (uint208) {
        if (x >= 1 << 208) _revertOverflow();
        return uint208(x);
    }

    function toUint216(uint256 x) internal pure returns (uint216) {
        if (x >= 1 << 216) _revertOverflow();
        return uint216(x);
    }

    function toUint224(uint256 x) internal pure returns (uint224) {
        if (x >= 1 << 224) _revertOverflow();
        return uint224(x);
    }

    function toUint232(uint256 x) internal pure returns (uint232) {
        if (x >= 1 << 232) _revertOverflow();
        return uint232(x);
    }

    function toUint240(uint256 x) internal pure returns (uint240) {
        if (x >= 1 << 240) _revertOverflow();
        return uint240(x);
    }

    function toUint248(uint256 x) internal pure returns (uint248) {
        if (x >= 1 << 248) _revertOverflow();
        return uint248(x);
    }

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*           SIGNED INTEGER SAFE CASTING OPERATIONS           */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    function toInt8(int256 x) internal pure returns (int8) {
        int8 y = int8(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt16(int256 x) internal pure returns (int16) {
        int16 y = int16(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt24(int256 x) internal pure returns (int24) {
        int24 y = int24(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt32(int256 x) internal pure returns (int32) {
        int32 y = int32(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt40(int256 x) internal pure returns (int40) {
        int40 y = int40(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt48(int256 x) internal pure returns (int48) {
        int48 y = int48(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt56(int256 x) internal pure returns (int56) {
        int56 y = int56(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt64(int256 x) internal pure returns (int64) {
        int64 y = int64(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt72(int256 x) internal pure returns (int72) {
        int72 y = int72(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt80(int256 x) internal pure returns (int80) {
        int80 y = int80(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt88(int256 x) internal pure returns (int88) {
        int88 y = int88(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt96(int256 x) internal pure returns (int96) {
        int96 y = int96(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt104(int256 x) internal pure returns (int104) {
        int104 y = int104(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt112(int256 x) internal pure returns (int112) {
        int112 y = int112(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt120(int256 x) internal pure returns (int120) {
        int120 y = int120(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt128(int256 x) internal pure returns (int128) {
        int128 y = int128(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt136(int256 x) internal pure returns (int136) {
        int136 y = int136(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt144(int256 x) internal pure returns (int144) {
        int144 y = int144(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt152(int256 x) internal pure returns (int152) {
        int152 y = int152(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt160(int256 x) internal pure returns (int160) {
        int160 y = int160(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt168(int256 x) internal pure returns (int168) {
        int168 y = int168(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt176(int256 x) internal pure returns (int176) {
        int176 y = int176(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt184(int256 x) internal pure returns (int184) {
        int184 y = int184(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt192(int256 x) internal pure returns (int192) {
        int192 y = int192(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt200(int256 x) internal pure returns (int200) {
        int200 y = int200(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt208(int256 x) internal pure returns (int208) {
        int208 y = int208(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt216(int256 x) internal pure returns (int216) {
        int216 y = int216(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt224(int256 x) internal pure returns (int224) {
        int224 y = int224(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt232(int256 x) internal pure returns (int232) {
        int232 y = int232(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt240(int256 x) internal pure returns (int240) {
        int240 y = int240(x);
        if (x != y) _revertOverflow();
        return y;
    }

    function toInt248(int256 x) internal pure returns (int248) {
        int248 y = int248(x);
        if (x != y) _revertOverflow();
        return y;
    }

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*               OTHER SAFE CASTING OPERATIONS                */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    function toInt256(uint256 x) internal pure returns (int256) {
        if (x >= 1 << 255) _revertOverflow();
        return int256(x);
    }

    function toUint256(int256 x) internal pure returns (uint256) {
        if (x < 0) _revertOverflow();
        return uint256(x);
    }

    /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
    /*                      PRIVATE HELPERS                       */
    /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

    function _revertOverflow() private pure {
        /// @solidity memory-safe-assembly
        assembly {
            // Store the function selector of `Overflow()`.
            mstore(0x00, 0x35278d12)
            // Revert with (offset, size).
            revert(0x1c, 0x04)
        }
    }
}

/*

    Copyright 2020 DODO ZOO.
    SPDX-License-Identifier: Apache-2.0

*/
pragma solidity >=0.8.0;

import {Math} from "/mimswap/libraries/Math.sol";

/**
 * @title DecimalMath
 * @author DODO Breeder
 *
 * @notice Functions for fixed point number with 18 decimals
 */
library DecimalMath {
    using Math for uint256;

    uint256 internal constant ONE = 10 ** 18;
    uint256 internal constant ONE2 = 10 ** 36;

    function mulFloor(uint256 target, uint256 d) internal pure returns (uint256) {
        return (target * d) / ONE;
    }

    function mulCeil(uint256 target, uint256 d) internal pure returns (uint256) {
        return (target * d).divCeil(ONE);
    }

    function divFloor(uint256 target, uint256 d) internal pure returns (uint256) {
        return (target * ONE) / d;
    }

    function divCeil(uint256 target, uint256 d) internal pure returns (uint256) {
        return (target * ONE).divCeil(d);
    }

    function reciprocalFloor(uint256 target) internal pure returns (uint256) {
        return ONE2 / target;
    }

    function reciprocalCeil(uint256 target) internal pure returns (uint256) {
        return ONE2.divCeil(target);
    }

    function powFloor(uint256 target, uint256 e) internal pure returns (uint256) {
        if (e == 0) {
            return 10 ** 18;
        } else if (e == 1) {
            return target;
        } else {
            uint p = powFloor(target, e / 2);
            p = (p * p) / ONE;
            if (e % 2 == 1) {
                p = (p * target) / ONE;
            }
            return p;
        }
    }
}

/*

    Copyright 2020 DODO ZOO.
    SPDX-License-Identifier: Apache-2.0

*/

pragma solidity >=0.8.0;

import {DecimalMath} from "/mimswap/libraries/DecimalMath.sol";

/**
 * @author Adapted from https://github.com/DODOEX/contractV2/blob/main/contracts/lib/Math.sol
 * @notice Functions for complex calculating. Including ONE Integration and TWO Quadratic solutions
 */
library Math {
    error ErrIsZero();

    function divCeil(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 quotient = a / b;
        uint256 remainder = a - quotient * b;
        if (remainder > 0) {
            return quotient + 1;
        } else {
            return quotient;
        }
    }

    // babylonian method (https://en.wikipedia.org/wiki/Methods_of_computing_square_roots#Babylonian_method)
    // from UniswapV2 https://github.com/Uniswap/v2-core/blob/master/contracts/libraries/Math.sol
    function sqrt(uint y) internal pure returns (uint z) {
        if (y > 3) {
            z = y;
            uint x = y / 2 + 1;
            while (x < z) {
                z = x;
                x = (y / x + x) / 2;
            }
        } else if (y != 0) {
            z = 1;
        }
    }

    /*
        Integrate dodo curve from V1 to V2
        require V0>=V1>=V2>0
        res = (1-k)i(V1-V2)+ikV0*V0(1/V2-1/V1)
        let V1-V2=delta
        res = i*delta*(1-k+k(V0^2/V1/V2))

        i is the price of V-res trading pair

        support k=1 & k=0 case

        [round down]
    */
    function _GeneralIntegrate(uint256 V0, uint256 V1, uint256 V2, uint256 i, uint256 k) internal pure returns (uint256) {
        if (V0 == 0) {
            revert ErrIsZero();
        }

        uint256 fairAmount = i * (V1 - V2); // i*delta

        if (k == 0) {
            return fairAmount / DecimalMath.ONE;
        }

        uint256 V0V0V1V2 = DecimalMath.divFloor((V0 * V0) / V1, V2);
        uint256 penalty = DecimalMath.mulFloor(k, V0V0V1V2); // k(V0^2/V1/V2)
        return (((DecimalMath.ONE - k) + penalty) * fairAmount) / DecimalMath.ONE2;
    }

    /*
        Follow the integration function above
        i*deltaB = (Q2-Q1)*(1-k+kQ0^2/Q1/Q2)
        Assume Q2=Q0, Given Q1 and deltaB, solve Q0

        i is the price of delta-V trading pair
        give out target of V

        support k=1 & k=0 case

        [round down]
    */
    function _SolveQuadraticFunctionForTarget(uint256 V1, uint256 delta, uint256 i, uint256 k) internal pure returns (uint256) {
        if (k == 0) {
            return V1 + DecimalMath.mulFloor(i, delta);
        }

        // V0 = V1*(1+(sqrt-1)/2k)
        // sqrt = √(1+4kidelta/V1)
        // premium = 1+(sqrt-1)/2k
        // uint256 sqrt = (4 * k).mul(i).mul(delta).div(V1).add(DecimalMath.ONE2).sqrt();

        if (V1 == 0) {
            return 0;
        }
        uint256 _sqrt;
        uint256 ki = (4 * k) * i;
        if (ki == 0) {
            _sqrt = DecimalMath.ONE;
        } else if ((ki * delta) / ki == delta) {
            _sqrt = sqrt(((ki * delta) / V1) + DecimalMath.ONE2);
        } else {
            _sqrt = sqrt(((ki / V1) * delta) + DecimalMath.ONE2);
        }
        uint256 premium = DecimalMath.divFloor(_sqrt - DecimalMath.ONE, k * 2) + DecimalMath.ONE;
        // V0 is greater than or equal to V1 according to the solution
        return DecimalMath.mulFloor(V1, premium);
    }

    /*
        Follow the integration expression above, we have:
        i*deltaB = (Q2-Q1)*(1-k+kQ0^2/Q1/Q2)
        Given Q1 and deltaB, solve Q2
        This is a quadratic function and the standard version is
        aQ2^2 + bQ2 + c = 0, where
        a=1-k
        -b=(1-k)Q1-kQ0^2/Q1+i*deltaB
        c=-kQ0^2 
        and Q2=(-b+sqrt(b^2+4(1-k)kQ0^2))/2(1-k)
        note: another root is negative, abondan

        if deltaBSig=true, then Q2>Q1, user sell Q and receive B
        if deltaBSig=false, then Q2<Q1, user sell B and receive Q
        return |Q1-Q2|

        as we only support sell amount as delta, the deltaB is always negative
        the input ideltaB is actually -ideltaB in the equation

        i is the price of delta-V trading pair

        support k=1 & k=0 case

        [round down]
    */
    function _SolveQuadraticFunctionForTrade(uint256 V0, uint256 V1, uint256 delta, uint256 i, uint256 k) internal pure returns (uint256) {
        if (V0 == 0) {
            revert ErrIsZero();
        }

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

        if (k == 0) {
            return DecimalMath.mulFloor(i, delta) > V1 ? V1 : DecimalMath.mulFloor(i, delta);
        }

        if (k == DecimalMath.ONE) {
            // if k==1
            // Q2=Q1/(1+ideltaBQ1/Q0/Q0)
            // temp = ideltaBQ1/Q0/Q0
            // Q2 = Q1/(1+temp)
            // Q1-Q2 = Q1*(1-1/(1+temp)) = Q1*(temp/(1+temp))
            // uint256 temp = i.mul(delta).mul(V1).div(V0.mul(V0));
            uint256 temp;
            uint256 idelta = i * delta;
            if (idelta == 0) {
                temp = 0;
            } else if ((idelta * V1) / idelta == V1) {
                temp = (idelta * V1) / (V0 * V0);
            } else {
                temp = (((delta * V1) / V0) * i) / V0;
            }
            return (V1 * temp) / (temp + DecimalMath.ONE);
        }

        // calculate -b value and sig
        // b = kQ0^2/Q1-i*deltaB-(1-k)Q1
        // part1 = (1-k)Q1 >=0
        // part2 = kQ0^2/Q1-i*deltaB >=0
        // bAbs = abs(part1-part2)
        // if part1>part2 => b is negative => bSig is false
        // if part2>part1 => b is positive => bSig is true
        uint256 part2 = (((k * V0) / V1) * V0) + (i * delta); // kQ0^2/Q1-i*deltaB
        uint256 bAbs = (DecimalMath.ONE - k) * V1; // (1-k)Q1

        bool bSig;
        if (bAbs >= part2) {
            bAbs = bAbs - part2;
            bSig = false;
        } else {
            bAbs = part2 - bAbs;
            bSig = true;
        }
        bAbs = bAbs / DecimalMath.ONE;

        // calculate sqrt
        uint256 squareRoot = DecimalMath.mulFloor((DecimalMath.ONE - k) * 4, DecimalMath.mulFloor(k, V0) * V0); // 4(1-k)kQ0^2
        squareRoot = sqrt((bAbs * bAbs) + squareRoot); // sqrt(b*b+4(1-k)kQ0*Q0)

        // final res
        uint256 denominator = (DecimalMath.ONE - k) * 2; // 2(1-k)
        uint256 numerator;
        if (bSig) {
            numerator = squareRoot - bAbs;
            if (numerator == 0) {
                revert ErrIsZero();
            }
        } else {
            numerator = bAbs + squareRoot;
        }

        uint256 V2 = DecimalMath.divCeil(numerator, denominator);
        if (V2 > V1) {
            return 0;
        } else {
            return V1 - V2;
        }
    }
}

/*

    Copyright 2020 DODO ZOO.
    SPDX-License-Identifier: Apache-2.0

*/

pragma solidity >=0.8.0;

import {DecimalMath} from "/mimswap/libraries/DecimalMath.sol";
import {Math} from "/mimswap/libraries/Math.sol";

/**
 * @title Pricing
 * @author DODO Breeder
 *
 * @notice DODO Pricing model
 */

library PMMPricing {
    enum RState {
        ONE,
        ABOVE_ONE,
        BELOW_ONE
    }

    struct PMMState {
        uint256 i;
        uint256 K;
        uint256 B;
        uint256 Q;
        uint256 B0;
        uint256 Q0;
        RState R;
    }

    // ============ buy & sell ============

    function sellBaseToken(PMMState memory state, uint256 payBaseAmount) internal pure returns (uint256 receiveQuoteAmount, RState newR) {
        if (state.R == RState.ONE) {
            // case 1: R=1
            // R falls below one
            receiveQuoteAmount = _ROneSellBaseToken(state, payBaseAmount);
            newR = RState.BELOW_ONE;
        } else if (state.R == RState.ABOVE_ONE) {
            uint256 backToOnePayBase = state.B0 - state.B;
            uint256 backToOneReceiveQuote = state.Q - state.Q0;
            // case 2: R>1
            // complex case, R status depends on trading amount
            if (payBaseAmount < backToOnePayBase) {
                // case 2.1: R status do not change
                receiveQuoteAmount = _RAboveSellBaseToken(state, payBaseAmount);
                newR = RState.ABOVE_ONE;
                if (receiveQuoteAmount > backToOneReceiveQuote) {
                    // [Important corner case!] may enter this branch when some precision problem happens. And consequently contribute to negative spare quote amount
                    // to make sure spare quote>=0, mannually set receiveQuote=backToOneReceiveQuote
                    receiveQuoteAmount = backToOneReceiveQuote;
                }
            } else if (payBaseAmount == backToOnePayBase) {
                // case 2.2: R status changes to ONE
                receiveQuoteAmount = backToOneReceiveQuote;
                newR = RState.ONE;
            } else {
                // case 2.3: R status changes to BELOW_ONE
                receiveQuoteAmount = backToOneReceiveQuote + _ROneSellBaseToken(state, payBaseAmount - backToOnePayBase);
                newR = RState.BELOW_ONE;
            }
        } else {
            // state.R == RState.BELOW_ONE
            // case 3: R<1
            receiveQuoteAmount = _RBelowSellBaseToken(state, payBaseAmount);
            newR = RState.BELOW_ONE;
        }
    }

    function sellQuoteToken(PMMState memory state, uint256 payQuoteAmount) internal pure returns (uint256 receiveBaseAmount, RState newR) {
        if (state.R == RState.ONE) {
            receiveBaseAmount = _ROneSellQuoteToken(state, payQuoteAmount);
            newR = RState.ABOVE_ONE;
        } else if (state.R == RState.ABOVE_ONE) {
            receiveBaseAmount = _RAboveSellQuoteToken(state, payQuoteAmount);
            newR = RState.ABOVE_ONE;
        } else {
            uint256 backToOnePayQuote = state.Q0 - state.Q;
            uint256 backToOneReceiveBase = state.B - state.B0;
            if (payQuoteAmount < backToOnePayQuote) {
                receiveBaseAmount = _RBelowSellQuoteToken(state, payQuoteAmount);
                newR = RState.BELOW_ONE;
                if (receiveBaseAmount > backToOneReceiveBase) {
                    receiveBaseAmount = backToOneReceiveBase;
                }
            } else if (payQuoteAmount == backToOnePayQuote) {
                receiveBaseAmount = backToOneReceiveBase;
                newR = RState.ONE;
            } else {
                receiveBaseAmount = backToOneReceiveBase + _ROneSellQuoteToken(state, payQuoteAmount - backToOnePayQuote);
                newR = RState.ABOVE_ONE;
            }
        }
    }

    // ============ R = 1 cases ============

    function _ROneSellBaseToken(
        PMMState memory state,
        uint256 payBaseAmount
    )
        internal
        pure
        returns (
            uint256 // receiveQuoteToken
        )
    {
        // in theory Q2 <= targetQuoteTokenAmount
        // however when amount is close to 0, precision problems may cause Q2 > targetQuoteTokenAmount
        return Math._SolveQuadraticFunctionForTrade(state.Q0, state.Q0, payBaseAmount, state.i, state.K);
    }

    function _ROneSellQuoteToken(
        PMMState memory state,
        uint256 payQuoteAmount
    )
        internal
        pure
        returns (
            uint256 // receiveBaseToken
        )
    {
        return Math._SolveQuadraticFunctionForTrade(state.B0, state.B0, payQuoteAmount, DecimalMath.reciprocalFloor(state.i), state.K);
    }

    // ============ R < 1 cases ============

    function _RBelowSellQuoteToken(
        PMMState memory state,
        uint256 payQuoteAmount
    )
        internal
        pure
        returns (
            uint256 // receiveBaseToken
        )
    {
        return Math._GeneralIntegrate(state.Q0, state.Q + payQuoteAmount, state.Q, DecimalMath.reciprocalFloor(state.i), state.K);
    }

    function _RBelowSellBaseToken(
        PMMState memory state,
        uint256 payBaseAmount
    )
        internal
        pure
        returns (
            uint256 // receiveQuoteToken
        )
    {
        return Math._SolveQuadraticFunctionForTrade(state.Q0, state.Q, payBaseAmount, state.i, state.K);
    }

    // ============ R > 1 cases ============

    function _RAboveSellBaseToken(
        PMMState memory state,
        uint256 payBaseAmount
    )
        internal
        pure
        returns (
            uint256 // receiveQuoteToken
        )
    {
        return Math._GeneralIntegrate(state.B0, state.B + payBaseAmount, state.B, state.i, state.K);
    }

    function _RAboveSellQuoteToken(
        PMMState memory state,
        uint256 payQuoteAmount
    )
        internal
        pure
        returns (
            uint256 // receiveBaseToken
        )
    {
        return Math._SolveQuadraticFunctionForTrade(state.B0, state.B, payQuoteAmount, DecimalMath.reciprocalFloor(state.i), state.K);
    }

    // ============ Helper functions ============

    function adjustedTarget(PMMState memory state) internal pure {
        if (state.R == RState.BELOW_ONE) {
            state.Q0 = Math._SolveQuadraticFunctionForTarget(state.Q, state.B - state.B0, state.i, state.K);
        } else if (state.R == RState.ABOVE_ONE) {
            state.B0 = Math._SolveQuadraticFunctionForTarget(
                state.B,
                state.Q - state.Q0,
                DecimalMath.reciprocalFloor(state.i),
                state.K
            );
        }
    }
}

/*

    Copyright 2020 DODO ZOO.
    SPDX-License-Identifier: Apache-2.0

*/

pragma solidity >=0.8.0;

interface ICallee {
    function SellShareCall(
        address sender,
        uint256 burnShareAmount,
        uint256 baseAmount,
        uint256 quoteAmount,
        bytes calldata data
    ) external;

    function FlashLoanCall(address sender, uint256 baseAmount, uint256 quoteAmount, bytes calldata data) external;
}

/*

    Copyright 2020 DODO ZOO.
    SPDX-License-Identifier: Apache-2.0

*/

pragma solidity >=0.8.0;

interface IFeeRateImpl {
    function getFeeRate(
        address pool,
        address trader,
        uint256 lpFeeRate
    ) external view returns (uint256 adjustedLpFeeRate, uint256 mtFeeRate);
}

interface IFeeRateModel {
    function maintainer() external view returns (address);

    function getFeeRate(address trader, uint256 lpFeeRate) external view returns (uint256 adjustedLpFeeRate, uint256 mtFeeRate);
}

// SPDX-License-Identifier: MIT
pragma solidity >=0.8.0;

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

interface IWETH is IERC20 {
    function deposit() external payable;

    function withdraw(uint256) external;
}

interface IWETHAlike is IWETH {}

// SPDX-License-Identifier: MIT
pragma solidity >=0.8.0;

enum YieldMode {
    AUTOMATIC,
    DISABLED,
    CLAIMABLE
}

enum GasMode {
    VOID,
    CLAIMABLE
}

interface IBlast {
    function governorMap(address) external view returns (address);

    // configure
    function configureContract(address contractAddress, YieldMode _yield, GasMode gasMode, address governor) external;

    function configure(YieldMode _yield, GasMode gasMode, address governor) external;

    // base configuration options
    function configureClaimableYield() external;

    function configureClaimableYieldOnBehalf(address contractAddress) external;

    function configureAutomaticYield() external;

    function configureAutomaticYieldOnBehalf(address contractAddress) external;

    function configureVoidYield() external;

    function configureVoidYieldOnBehalf(address contractAddress) external;

    function configureClaimableGas() external;

    function configureClaimableGasOnBehalf(address contractAddress) external;

    function configureVoidGas() external;

    function configureVoidGasOnBehalf(address contractAddress) external;

    function configureGovernor(address _governor) external;

    function configureGovernorOnBehalf(address _newGovernor, address contractAddress) external;

    // claim yield
    function claimYield(address contractAddress, address recipientOfYield, uint256 amount) external returns (uint256);

    function claimAllYield(address contractAddress, address recipientOfYield) external returns (uint256);

    // claim gas
    function claimAllGas(address contractAddress, address recipientOfGas) external returns (uint256);

    function claimGasAtMinClaimRate(address contractAddress, address recipientOfGas, uint256 minClaimRateBips) external returns (uint256);

    function claimMaxGas(address contractAddress, address recipientOfGas) external returns (uint256);

    function claimGas(
        address contractAddress,
        address recipientOfGas,
        uint256 gasToClaim,
        uint256 gasSecondsToConsume
    ) external returns (uint256);

    // read functions
    function readClaimableYield(address contractAddress) external view returns (uint256);

    function readYieldConfiguration(address contractAddress) external view returns (uint8);

    function readGasParams(
        address contractAddress
    ) external view returns (uint256 etherSeconds, uint256 etherBalance, uint256 lastUpdated, GasMode);
}

interface IERC20Rebasing {
    function getConfiguration(address account) external view returns (YieldMode);

    // changes the yield mode of the caller and update the balance
    // to reflect the configuration
    function configure(YieldMode) external returns (uint256);

    // "claimable" yield mode accounts can call this this claim their yield
    // to another address
    function claim(address recipient, uint256 amount) external returns (uint256);

    // read the claimable amount for an account
    function getClaimableAmount(address account) external view returns (uint256);
}

interface IBlastPoints {
    function configurePointsOperator(address operator) external;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol)

pragma solidity ^0.8.1;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     *
     * Furthermore, `isContract` will also return true if the target contract within
     * the same transaction is already scheduled for destruction by `SELFDESTRUCT`,
     * which only has an effect at the end of a transaction.
     * ====
     *
     * [IMPORTANT]
     * ====
     * You shouldn't rely on `isContract` to protect against flash loan attacks!
     *
     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
     * constructor.
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize/address.code.length, which returns 0
        // for contracts in construction, since the code is only stored at the end
        // of the constructor execution.

        return account.code.length > 0;
    }

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        (bool success, ) = recipient.call{value: amount}("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, "Address: low-level call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }

    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
     * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
     *
     * _Available since v4.8._
     */
    function verifyCallResultFromTarget(
        address target,
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        if (success) {
            if (returndata.length == 0) {
                // only check isContract if the call was successful and the return data is empty
                // otherwise we already know that it was a contract
                require(isContract(target), "Address: call to non-contract");
            }
            return returndata;
        } else {
            _revert(returndata, errorMessage);
        }
    }

    /**
     * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason or using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
            _revert(returndata, errorMessage);
        }
    }

    function _revert(bytes memory returndata, string memory errorMessage) private pure {
        // Look for revert reason and bubble it up if present
        if (returndata.length > 0) {
            // The easiest way to bubble the revert reason is using memory via assembly
            /// @solidity memory-safe-assembly
            assembly {
                let returndata_size := mload(returndata)
                revert(add(32, returndata), returndata_size)
            }
        } else {
            revert(errorMessage);
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)

pragma solidity ^0.8.0;

import "../IERC20.sol";

/**
 * @dev Interface for the optional metadata functions from the ERC20 standard.
 *
 * _Available since v4.1._
 */
interface IERC20Metadata is IERC20 {
    /**
     * @dev Returns the name of the token.
     */
    function name() external view returns (string memory);

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

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

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

interface IERC20 {
    // transfer and tranferFrom have been removed, because they don't work on all tokens (some aren't ERC20 complaint).
    // By removing them you can't accidentally use them.
    // name, symbol and decimals have been removed, because they are optional and sometimes wrongly implemented (MKR).
    // Use BoringERC20 with `using BoringERC20 for IERC20` and call `safeTransfer`, `safeTransferFrom`, etc instead.
    function totalSupply() external view returns (uint256);

    function balanceOf(address account) external view returns (uint256);

    function allowance(address owner, address spender) external view returns (uint256);

    function approve(address spender, uint256 amount) external returns (bool);

    event Transfer(address indexed from, address indexed to, uint256 value);
    event Approval(address indexed owner, address indexed spender, uint256 value);

    /// @notice EIP 2612
    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external;
}

interface IStrictERC20 {
    // This is the strict ERC20 interface. Don't use this, certainly not if you don't control the ERC20 token you're calling.
    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 (uint256);
    function balanceOf(address _owner) external view returns (uint256 balance);
    function transfer(address _to, uint256 _value) external returns (bool success);
    function transferFrom(address _from, address _to, uint256 _value) external returns (bool success);
    function approve(address _spender, uint256 _value) external returns (bool success);
    function allowance(address _owner, address _spender) external view returns (uint256 remaining);

    event Transfer(address indexed from, address indexed to, uint256 value);
    event Approval(address indexed owner, address indexed spender, uint256 value);

    /// @notice EIP 2612
    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

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

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

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

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

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

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

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

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

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    "swappers/=src/swappers/",
    "oracles/=src/oracles/",
    "strategies/=src/strategies/",
    "tokens/=src/tokens/",
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    "mixins/=src/mixins/",
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    "surl/=lib/surl/src/",
    "solady/=lib/solady/src/",
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    "ExcessivelySafeCall/=lib/ExcessivelySafeCall/src/",
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