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// SPDX-License-Identifier: AGPL-3.0-only
pragma solidity 0.8.13;

import {ISupplyVault} from "./interfaces/ISupplyVault.sol";

import {ERC20, SafeTransferLib} from "@rari-capital/solmate/src/utils/SafeTransferLib.sol";
import {FixedPointMathLib} from "@rari-capital/solmate/src/utils/FixedPointMathLib.sol";
import {SafeCastLib} from "@rari-capital/solmate/src/utils/SafeCastLib.sol";

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

/// @title SupplyVault.
/// @author Morpho Labs.
/// @custom:contact [email protected]
/// @notice ERC4626-upgradeable Tokenized Vault implementation for Morpho-Compound, which tracks rewards from Compound's pool accrued by its users.
contract SupplyVault is ISupplyVault, SupplyVaultBase {
    using FixedPointMathLib for uint256;
    using SafeCastLib for uint256;
    using SafeTransferLib for ERC20;

    /// EVENTS ///

    /// @notice Emitted when a user accrues its rewards.
    /// @param user The address of the user.
    /// @param index The new index of the user (also the global at the moment of the update).
    /// @param unclaimed The new unclaimed amount of the user.
    event Accrued(address indexed user, uint256 index, uint256 unclaimed);

    /// @notice Emitted when a user claims its rewards.
    /// @param user The address of the user.
    /// @param claimed The amount of rewards claimed.
    event Claimed(address indexed user, uint256 claimed);

    /// STRUCTS ///

    struct UserRewardsData {
        uint128 index; // Rewards index at the user's last interaction with the vault.
        uint128 unclaimed; // User's unclaimed rewards in underlying reward token.
    }

    /// STORAGE ///

    uint256 public rewardsIndex; // The vault's rewards index.
    mapping(address => UserRewardsData) public userRewards; // The rewards data of a user, used to track accrued rewards.

    /// CONSTRUCTOR ///

    /// @dev Initializes immutable state variables.
    /// @param _morpho The address of the main Morpho contract.
    /// @param _morphoToken The address of the Morpho Token.
    /// @param _lens The address of the Morpho Lens.
    /// @param _recipient The recipient of the rewards that will redistribute them to vault's users.
    constructor(
        address _morpho,
        address _morphoToken,
        address _lens,
        address _recipient
    ) SupplyVaultBase(_morpho, _morphoToken, _lens, _recipient) {}

    /// INITIALIZER ///

    /// @notice Initializes the vault.
    /// @param _poolToken The address of the pool token corresponding to the market to supply through this vault.
    /// @param _name The name of the ERC20 token associated to this tokenized vault.
    /// @param _symbol The symbol of the ERC20 token associated to this tokenized vault.
    /// @param _initialDeposit The amount of the initial deposit used to prevent pricePerShare manipulation.
    function initialize(
        address _poolToken,
        string calldata _name,
        string calldata _symbol,
        uint256 _initialDeposit
    ) external initializer {
        __SupplyVaultBase_init(_poolToken, _name, _symbol, _initialDeposit);
    }

    /// EXTERNAL ///

    /// @notice Claims rewards on behalf of `_user`.
    /// @param _user The address of the user to claim rewards for.
    /// @return rewardsAmount The amount of rewards claimed.
    function claimRewards(address _user) external returns (uint256 rewardsAmount) {
        rewardsAmount = _accrueUnclaimedRewards(_user);
        if (rewardsAmount == 0) return rewardsAmount;

        userRewards[_user].unclaimed = 0;

        comp.safeTransfer(_user, rewardsAmount);

        emit Claimed(_user, rewardsAmount);
    }

    /// INTERNAL ///

    function _beforeTokenTransfer(
        address from,
        address to,
        uint256 amount
    ) internal override {
        uint256 newRewardsIndex = _claimVaultRewards();
        _accrueUnclaimedRewardsFromRewardsIndex(from, newRewardsIndex);
        _accrueUnclaimedRewardsFromRewardsIndex(to, newRewardsIndex);

        super._beforeTokenTransfer(from, to, amount);
    }

    function _claimVaultRewards() internal returns (uint256 newRewardsIndex) {
        newRewardsIndex = rewardsIndex;

        uint256 supply = totalSupply();
        if (supply > 0) {
            address[] memory poolTokens = new address[](1);
            poolTokens[0] = poolToken;

            newRewardsIndex += morpho.claimRewards(poolTokens, false).divWadDown(supply);
            rewardsIndex = newRewardsIndex;
        }
    }

    function _accrueUnclaimedRewards(address _user) internal returns (uint256 unclaimed) {
        return _accrueUnclaimedRewardsFromRewardsIndex(_user, _claimVaultRewards());
    }

    function _accrueUnclaimedRewardsFromRewardsIndex(address _user, uint256 _newRewardsIndex)
        internal
        returns (uint256 unclaimed)
    {
        if (_user == address(0)) return unclaimed;

        UserRewardsData storage userRewardsData = userRewards[_user];
        uint256 rewardsIndexDiff;

        // Safe because we always have `rewardsIndex` >= `userRewardsData.index`.
        unchecked {
            rewardsIndexDiff = _newRewardsIndex - userRewardsData.index;
        }

        unclaimed = userRewardsData.unclaimed;
        if (rewardsIndexDiff > 0) {
            unclaimed += balanceOf(_user).mulWadDown(rewardsIndexDiff);
            userRewardsData.unclaimed = unclaimed.safeCastTo128();
            userRewardsData.index = _newRewardsIndex.safeCastTo128();

            emit Accrued(_user, _newRewardsIndex, unclaimed);
        }
    }
}

// SPDX-License-Identifier: GNU AGPLv3
pragma solidity ^0.8.0;

import "./IOracle.sol";

interface IIncentivesVault {
    function isPaused() external view returns (bool);

    function bonus() external view returns (uint256);

    function MAX_BASIS_POINTS() external view returns (uint256);

    function incentivesTreasuryVault() external view returns (address);

    function oracle() external view returns (IOracle);

    function setOracle(IOracle _newOracle) external;

    function setIncentivesTreasuryVault(address _newIncentivesTreasuryVault) external;

    function setBonus(uint256 _newBonus) external;

    function setPauseStatus(bool _newStatus) external;

    function transferTokensToDao(address _token, uint256 _amount) external;

    function tradeCompForMorphoTokens(address _to, uint256 _amount) external;
}

// SPDX-License-Identifier: GNU AGPLv3
pragma solidity ^0.8.0;

interface IInterestRatesManager {
    function updateP2PIndexes(address _marketAddress) external;
}

// SPDX-License-Identifier: GNU AGPLv3
pragma solidity ^0.8.0;

import "./compound/ICompound.sol";
import "./IRewardsManager.sol";
import "./IMorpho.sol";

interface ILens {
    /// STORAGE ///

    function MAX_BASIS_POINTS() external view returns (uint256);

    function WAD() external view returns (uint256);

    function morpho() external view returns (IMorpho);

    function comptroller() external view returns (IComptroller);

    function rewardsManager() external view returns (IRewardsManager);

    /// GENERAL ///

    function getTotalSupply()
        external
        view
        returns (
            uint256 p2pSupplyAmount,
            uint256 poolSupplyAmount,
            uint256 totalSupplyAmount
        );

    function getTotalBorrow()
        external
        view
        returns (
            uint256 p2pBorrowAmount,
            uint256 poolBorrowAmount,
            uint256 totalBorrowAmount
        );

    /// MARKETS ///

    function isMarketCreated(address _poolToken) external view returns (bool);

    function isMarketCreatedAndNotPaused(address _poolToken) external view returns (bool);

    function isMarketCreatedAndNotPausedNorPartiallyPaused(address _poolToken)
        external
        view
        returns (bool);

    function getAllMarkets() external view returns (address[] memory marketsCreated_);

    function getMainMarketData(address _poolToken)
        external
        view
        returns (
            uint256 avgSupplyRatePerBlock,
            uint256 avgBorrowRatePerBlock,
            uint256 p2pSupplyAmount,
            uint256 p2pBorrowAmount,
            uint256 poolSupplyAmount,
            uint256 poolBorrowAmount
        );

    function getAdvancedMarketData(address _poolToken)
        external
        view
        returns (
            uint256 p2pSupplyIndex,
            uint256 p2pBorrowIndex,
            uint256 poolSupplyIndex,
            uint256 poolBorrowIndex,
            uint32 lastUpdateBlockNumber,
            uint256 p2pSupplyDelta,
            uint256 p2pBorrowDelta
        );

    function getMarketConfiguration(address _poolToken)
        external
        view
        returns (
            address underlying,
            bool isCreated,
            bool p2pDisabled,
            bool isPaused,
            bool isPartiallyPaused,
            uint16 reserveFactor,
            uint16 p2pIndexCursor,
            uint256 collateralFactor
        );

    function getTotalMarketSupply(address _poolToken)
        external
        view
        returns (uint256 p2pSupplyAmount, uint256 poolSupplyAmount);

    function getTotalMarketBorrow(address _poolToken)
        external
        view
        returns (uint256 p2pBorrowAmount, uint256 poolBorrowAmount);

    /// INDEXES ///

    function getCurrentP2PSupplyIndex(address _poolToken) external view returns (uint256);

    function getCurrentP2PBorrowIndex(address _poolToken) external view returns (uint256);

    function getCurrentPoolIndexes(address _poolToken)
        external
        view
        returns (uint256 currentPoolSupplyIndex, uint256 currentPoolBorrowIndex);

    function getIndexes(address _poolToken, bool _computeUpdatedIndexes)
        external
        view
        returns (
            uint256 p2pSupplyIndex,
            uint256 p2pBorrowIndex,
            uint256 poolSupplyIndex,
            uint256 poolBorrowIndex
        );

    /// USERS ///

    function getEnteredMarkets(address _user)
        external
        view
        returns (address[] memory enteredMarkets);

    function getUserHealthFactor(address _user, address[] calldata _updatedMarkets)
        external
        view
        returns (uint256);

    function getUserBalanceStates(address _user, address[] calldata _updatedMarkets)
        external
        view
        returns (
            uint256 collateralValue,
            uint256 debtValue,
            uint256 maxDebtValue
        );

    function getCurrentSupplyBalanceInOf(address _poolToken, address _user)
        external
        view
        returns (
            uint256 balanceOnPool,
            uint256 balanceInP2P,
            uint256 totalBalance
        );

    function getCurrentBorrowBalanceInOf(address _poolToken, address _user)
        external
        view
        returns (
            uint256 balanceOnPool,
            uint256 balanceInP2P,
            uint256 totalBalance
        );

    function getUserMaxCapacitiesForAsset(address _user, address _poolToken)
        external
        view
        returns (uint256 withdrawable, uint256 borrowable);

    function getUserHypotheticalBalanceStates(
        address _user,
        address _poolToken,
        uint256 _withdrawnAmount,
        uint256 _borrowedAmount
    ) external view returns (uint256 debtValue, uint256 maxDebtValue);

    function getUserLiquidityDataForAsset(
        address _user,
        address _poolToken,
        bool _computeUpdatedIndexes,
        ICompoundOracle _oracle
    ) external view returns (Types.AssetLiquidityData memory assetData);

    function isLiquidatable(address _user, address[] memory _updatedMarkets)
        external
        view
        returns (bool);

    function computeLiquidationRepayAmount(
        address _user,
        address _poolTokenBorrowed,
        address _poolTokenCollateral,
        address[] calldata _updatedMarkets
    ) external view returns (uint256 toRepay);

    /// RATES ///

    function getAverageSupplyRatePerBlock(address _poolToken)
        external
        view
        returns (
            uint256 avgSupplyRatePerBlock,
            uint256 p2pSupplyAmount,
            uint256 poolSupplyAmount
        );

    function getAverageBorrowRatePerBlock(address _poolToken)
        external
        view
        returns (
            uint256 avgBorrowRatePerBlock,
            uint256 p2pBorrowAmount,
            uint256 poolBorrowAmount
        );

    function getNextUserSupplyRatePerBlock(
        address _poolToken,
        address _user,
        uint256 _amount
    )
        external
        view
        returns (
            uint256 nextSupplyRatePerBlock,
            uint256 balanceOnPool,
            uint256 balanceInP2P,
            uint256 totalBalance
        );

    function getNextUserBorrowRatePerBlock(
        address _poolToken,
        address _user,
        uint256 _amount
    )
        external
        view
        returns (
            uint256 nextBorrowRatePerBlock,
            uint256 balanceOnPool,
            uint256 balanceInP2P,
            uint256 totalBalance
        );

    function getCurrentUserSupplyRatePerBlock(address _poolToken, address _user)
        external
        view
        returns (uint256);

    function getCurrentUserBorrowRatePerBlock(address _poolToken, address _user)
        external
        view
        returns (uint256);

    function getRatesPerBlock(address _poolToken)
        external
        view
        returns (
            uint256 p2pSupplyRate,
            uint256 p2pBorrowRate,
            uint256 poolSupplyRate,
            uint256 poolBorrowRate
        );

    /// REWARDS ///

    function getUserUnclaimedRewards(address[] calldata _poolTokens, address _user)
        external
        view
        returns (uint256 unclaimedRewards);

    function getAccruedSupplierComp(
        address _supplier,
        address _poolToken,
        uint256 _balance
    ) external view returns (uint256);

    function getAccruedBorrowerComp(
        address _borrower,
        address _poolToken,
        uint256 _balance
    ) external view returns (uint256);

    function getCurrentCompSupplyIndex(address _poolToken) external view returns (uint256);

    function getCurrentCompBorrowIndex(address _poolToken) external view returns (uint256);
}

// SPDX-License-Identifier: GNU AGPLv3
pragma solidity ^0.8.0;

import "./IInterestRatesManager.sol";
import "./IPositionsManager.sol";
import "./IRewardsManager.sol";
import "./IIncentivesVault.sol";

import "../libraries/Types.sol";

// prettier-ignore
interface IMorpho {

    /// STORAGE ///

    function isClaimRewardsPaused() external view returns (bool);
    function defaultMaxGasForMatching() external view returns (Types.MaxGasForMatching memory);
    function maxSortedUsers() external view returns (uint256);
    function dustThreshold() external view returns (uint256);
    function supplyBalanceInOf(address, address) external view returns (Types.SupplyBalance memory);
    function borrowBalanceInOf(address, address) external view returns (Types.BorrowBalance memory);
    function enteredMarkets(address) external view returns (address);
    function deltas(address) external view returns (Types.Delta memory);
    function marketParameters(address) external view returns (Types.MarketParameters memory);
    function p2pDisabled(address) external view returns (bool);
    function p2pSupplyIndex(address) external view returns (uint256);
    function p2pBorrowIndex(address) external view returns (uint256);
    function lastPoolIndexes(address) external view returns (Types.LastPoolIndexes memory);
    function marketStatus(address) external view returns (Types.MarketStatus memory);
    function comptroller() external view returns (IComptroller);
    function interestRatesManager() external view returns (IInterestRatesManager);
    function rewardsManager() external view returns (IRewardsManager);
    function positionsManager() external view returns (IPositionsManager);
    function incentiveVault() external view returns (IIncentivesVault);
    function treasuryVault() external view returns (address);
    function cEth() external view returns (address);
    function wEth() external view returns (address);

    /// GETTERS ///

    function updateP2PIndexes(address _poolToken) external;
    function getEnteredMarkets(address _user) external view returns (address[] memory enteredMarkets_);
    function getAllMarkets() external view returns (address[] memory marketsCreated_);
    function getHead(address _poolToken, Types.PositionType _positionType) external view returns (address head);
    function getNext(address _poolToken, Types.PositionType _positionType, address _user) external view returns (address next);

    /// GOVERNANCE ///

    function setMaxSortedUsers(uint256 _newMaxSortedUsers) external;
    function setDefaultMaxGasForMatching(Types.MaxGasForMatching memory _maxGasForMatching) external;
    function setIncentivesVault(address _newIncentivesVault) external;
    function setRewardsManager(address _rewardsManagerAddress) external;
    function setInterestRatesManager(IInterestRatesManager _interestRatesManager) external;
    function setTreasuryVault(address _treasuryVault) external;
    function setDustThreshold(uint256 _dustThreshold) external;
    function setP2PDisabled(address _poolToken, bool _p2pDisabled) external;
    function setReserveFactor(address _poolToken, uint256 _newReserveFactor) external;
    function setP2PIndexCursor(address _poolToken, uint16 _p2pIndexCursor) external;
    function setPauseStatusForAllMarkets(bool _newStatus) external;
    function setPauseStatus(address _poolToken, bool _newStatus) external;
    function setPartialPauseStatus(address _poolToken, bool _newStatus) external;
    function setPauseStatus(address _poolToken) external;
    function setPartialPauseStatus(address _poolToken) external;
    function claimToTreasury(address[] calldata _poolTokens, uint256[] calldata _amounts) external;
    function createMarket(address _poolToken, Types.MarketParameters calldata _params) external;

    /// USERS ///

    function supply(address _poolToken, uint256 _amount) external;
    function supply(address _poolToken, address _onBehalf, uint256 _amount) external;
    function supply(address _poolToken, address _onBehalf, uint256 _amount, uint256 _maxGasForMatching) external;
    function borrow(address _poolToken, uint256 _amount) external;
    function borrow(address _poolToken, uint256 _amount, uint256 _maxGasForMatching) external;
    function withdraw(address _poolToken, uint256 _amount) external;
    function withdraw(address _poolToken, uint256 _amount, address _receiver) external;
    function repay(address _poolToken, uint256 _amount) external;
    function repay(address _poolToken, address _onBehalf, uint256 _amount) external;
    function liquidate(address _poolTokenBorrowed, address _poolTokenCollateral, address _borrower, uint256 _amount) external;
    function claimRewards(address[] calldata _cTokenAddresses, bool _tradeForMorphoToken) external returns (uint256 claimedAmount);
}

// SPDX-License-Identifier: GNU AGPLv3
pragma solidity ^0.8.0;

interface IOracle {
    function consult(uint256 _amountIn) external returns (uint256);
}

// SPDX-License-Identifier: GNU AGPLv3
pragma solidity ^0.8.0;

interface IPositionsManager {
    function supplyLogic(
        address _poolToken,
        address _supplier,
        address _onBehalf,
        uint256 _amount,
        uint256 _maxGasForMatching
    ) external;

    function borrowLogic(
        address _poolToken,
        uint256 _amount,
        uint256 _maxGasForMatching
    ) external;

    function withdrawLogic(
        address _poolToken,
        uint256 _amount,
        address _supplier,
        address _receiver,
        uint256 _maxGasForMatching
    ) external;

    function repayLogic(
        address _poolToken,
        address _repayer,
        address _onBehalf,
        uint256 _amount,
        uint256 _maxGasForMatching
    ) external;

    function liquidateLogic(
        address _poolTokenBorrowed,
        address _poolTokenCollateral,
        address _borrower,
        uint256 _amount
    ) external;
}

// SPDX-License-Identifier: GNU AGPLv3
pragma solidity ^0.8.0;

import "./compound/ICompound.sol";

interface IRewardsManager {
    function initialize(address _morpho) external;

    function claimRewards(address[] calldata, address) external returns (uint256);

    function userUnclaimedCompRewards(address) external view returns (uint256);

    function compSupplierIndex(address, address) external view returns (uint256);

    function compBorrowerIndex(address, address) external view returns (uint256);

    function getLocalCompSupplyState(address _cTokenAddress)
        external
        view
        returns (IComptroller.CompMarketState memory);

    function getLocalCompBorrowState(address _cTokenAddress)
        external
        view
        returns (IComptroller.CompMarketState memory);

    function accrueUserSupplyUnclaimedRewards(
        address,
        address,
        uint256
    ) external;

    function accrueUserBorrowUnclaimedRewards(
        address,
        address,
        uint256
    ) external;
}

// SPDX-License-Identifier: GNU AGPLv3
pragma solidity ^0.8.0;

interface ICEth {
    function accrueInterest() external returns (uint256);

    function borrowRate() external returns (uint256);

    function borrowIndex() external returns (uint256);

    function borrowBalanceStored(address) external returns (uint256);

    function mint() external payable;

    function exchangeRateCurrent() external returns (uint256);

    function exchangeRateStored() external view returns (uint256);

    function supplyRatePerBlock() external returns (uint256);

    function redeem(uint256) external returns (uint256);

    function redeemUnderlying(uint256) external returns (uint256);

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

    function transferFrom(
        address,
        address,
        uint256
    ) external returns (bool);

    function transfer(address dst, uint256 amount) external returns (bool);

    function balanceOf(address) external returns (uint256);

    function balanceOfUnderlying(address account) external returns (uint256);

    function borrow(uint256) external returns (uint256);

    function repayBorrow() external payable;

    function borrowBalanceCurrent(address) external returns (uint256);

    function borrowRatePerBlock() external view returns (uint256);
}

interface IComptroller {
    struct CompMarketState {
        /// @notice The market's last updated compBorrowIndex or compSupplyIndex
        uint224 index;
        /// @notice The block number the index was last updated at
        uint32 block;
    }

    function liquidationIncentiveMantissa() external view returns (uint256);

    function closeFactorMantissa() external view returns (uint256);

    function admin() external view returns (address);

    function oracle() external view returns (address);

    function borrowCaps(address) external view returns (uint256);

    function markets(address)
        external
        view
        returns (
            bool isListed,
            uint256 collateralFactorMantissa,
            bool isComped
        );

    function enterMarkets(address[] calldata cTokens) external returns (uint256[] memory);

    function exitMarket(address cToken) external returns (uint256);

    function mintAllowed(
        address cToken,
        address minter,
        uint256 mintAmount
    ) external returns (uint256);

    function mintVerify(
        address cToken,
        address minter,
        uint256 mintAmount,
        uint256 mintTokens
    ) external;

    function redeemAllowed(
        address cToken,
        address redeemer,
        uint256 redeemTokens
    ) external returns (uint256);

    function redeemVerify(
        address cToken,
        address redeemer,
        uint256 redeemAmount,
        uint256 redeemTokens
    ) external;

    function borrowAllowed(
        address cToken,
        address borrower,
        uint256 borrowAmount
    ) external returns (uint256);

    function borrowVerify(
        address cToken,
        address borrower,
        uint256 borrowAmount
    ) external;

    function repayBorrowAllowed(
        address cToken,
        address payer,
        address borrower,
        uint256 repayAmount
    ) external returns (uint256);

    function repayBorrowVerify(
        address cToken,
        address payer,
        address borrower,
        uint256 repayAmount,
        uint256 borrowerIndex
    ) external;

    function liquidateBorrowAllowed(
        address cTokenBorrowed,
        address cTokenCollateral,
        address liquidator,
        address borrower,
        uint256 repayAmount
    ) external returns (uint256);

    function liquidateBorrowVerify(
        address cTokenBorrowed,
        address cTokenCollateral,
        address liquidator,
        address borrower,
        uint256 repayAmount,
        uint256 seizeTokens
    ) external;

    function seizeAllowed(
        address cTokenCollateral,
        address cTokenBorrowed,
        address liquidator,
        address borrower,
        uint256 seizeTokens
    ) external returns (uint256);

    function seizeVerify(
        address cTokenCollateral,
        address cTokenBorrowed,
        address liquidator,
        address borrower,
        uint256 seizeTokens
    ) external;

    function transferAllowed(
        address cToken,
        address src,
        address dst,
        uint256 transferTokens
    ) external returns (uint256);

    function transferVerify(
        address cToken,
        address src,
        address dst,
        uint256 transferTokens
    ) external;

    /*** Liquidity/Liquidation Calculations ***/

    function liquidateCalculateSeizeTokens(
        address cTokenBorrowed,
        address cTokenCollateral,
        uint256 repayAmount
    ) external view returns (uint256, uint256);

    function getAccountLiquidity(address)
        external
        view
        returns (
            uint256,
            uint256,
            uint256
        );

    function getHypotheticalAccountLiquidity(
        address,
        address,
        uint256,
        uint256
    )
        external
        returns (
            uint256,
            uint256,
            uint256
        );

    function checkMembership(address, address) external view returns (bool);

    function claimComp(address holder) external;

    function claimComp(address holder, address[] memory cTokens) external;

    function compSpeeds(address) external view returns (uint256);

    function compSupplySpeeds(address) external view returns (uint256);

    function compBorrowSpeeds(address) external view returns (uint256);

    function compSupplyState(address) external view returns (CompMarketState memory);

    function compBorrowState(address) external view returns (CompMarketState memory);

    function getCompAddress() external view returns (address);

    function _setPriceOracle(address newOracle) external returns (uint256);

    function _setMintPaused(ICToken cToken, bool state) external returns (bool);

    function _setBorrowPaused(ICToken cToken, bool state) external returns (bool);

    function _setCollateralFactor(ICToken cToken, uint256 newCollateralFactorMantissa)
        external
        returns (uint256);

    function _setCompSpeeds(
        ICToken[] memory cTokens,
        uint256[] memory supplySpeeds,
        uint256[] memory borrowSpeeds
    ) external;
}

interface IInterestRateModel {
    function getBorrowRate(
        uint256 cash,
        uint256 borrows,
        uint256 reserves
    ) external view returns (uint256);

    function getSupplyRate(
        uint256 cash,
        uint256 borrows,
        uint256 reserves,
        uint256 reserveFactorMantissa
    ) external view returns (uint256);
}

interface ICToken {
    function isCToken() external returns (bool);

    function transfer(address dst, uint256 amount) external returns (bool);

    function transferFrom(
        address src,
        address dst,
        uint256 amount
    ) external returns (bool);

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

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

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

    function balanceOfUnderlying(address owner) external returns (uint256);

    function getAccountSnapshot(address account)
        external
        view
        returns (
            uint256,
            uint256,
            uint256,
            uint256
        );

    function borrowRatePerBlock() external view returns (uint256);

    function supplyRatePerBlock() external view returns (uint256);

    function totalBorrowsCurrent() external returns (uint256);

    function borrowBalanceCurrent(address account) external returns (uint256);

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

    function exchangeRateCurrent() external returns (uint256);

    function exchangeRateStored() external view returns (uint256);

    function getCash() external view returns (uint256);

    function seize(
        address liquidator,
        address borrower,
        uint256 seizeTokens
    ) external returns (uint256);

    function borrowRate() external returns (uint256);

    function borrowIndex() external view returns (uint256);

    function borrow(uint256) external returns (uint256);

    function repayBorrow(uint256) external returns (uint256);

    function repayBorrowBehalf(address borrower, uint256 repayAmount) external returns (uint256);

    function liquidateBorrow(
        address borrower,
        uint256 repayAmount,
        address cTokenCollateral
    ) external returns (uint256);

    function underlying() external view returns (address);

    function mint(uint256) external returns (uint256);

    function redeemUnderlying(uint256) external returns (uint256);

    function accrueInterest() external returns (uint256);

    function totalSupply() external view returns (uint256);

    function totalBorrows() external view returns (uint256);

    function accrualBlockNumber() external view returns (uint256);

    function totalReserves() external view returns (uint256);

    function interestRateModel() external view returns (IInterestRateModel);

    function reserveFactorMantissa() external view returns (uint256);

    function initialExchangeRateMantissa() external view returns (uint256);

    /*** Admin Functions ***/

    function _setPendingAdmin(address payable newPendingAdmin) external returns (uint256);

    function _acceptAdmin() external returns (uint256);

    function _setComptroller(IComptroller newComptroller) external returns (uint256);

    function _setReserveFactor(uint256 newReserveFactorMantissa) external returns (uint256);

    function _reduceReserves(uint256 reduceAmount) external returns (uint256);

    function _setInterestRateModel(IInterestRateModel newInterestRateModel)
        external
        returns (uint256);
}

interface ICEther is ICToken {
    function mint() external payable;

    function repayBorrow() external payable;
}

interface ICompoundOracle {
    function getUnderlyingPrice(address) external view returns (uint256);
}

// SPDX-License-Identifier: GNU AGPLv3
pragma solidity ^0.8.0;

/// @title Types.
/// @author Morpho Labs.
/// @custom:contact [email protected]
/// @dev Common types and structs used in Moprho contracts.
library Types {
    /// ENUMS ///

    enum PositionType {
        SUPPLIERS_IN_P2P,
        SUPPLIERS_ON_POOL,
        BORROWERS_IN_P2P,
        BORROWERS_ON_POOL
    }

    /// STRUCTS ///

    struct SupplyBalance {
        uint256 inP2P; // In supplier's peer-to-peer unit, a unit that grows in underlying value, to keep track of the interests earned by suppliers in peer-to-peer. Multiply by the peer-to-peer supply index to get the underlying amount.
        uint256 onPool; // In cToken. Multiply by the pool supply index to get the underlying amount.
    }

    struct BorrowBalance {
        uint256 inP2P; // In borrower's peer-to-peer unit, a unit that grows in underlying value, to keep track of the interests paid by borrowers in peer-to-peer. Multiply by the peer-to-peer borrow index to get the underlying amount.
        uint256 onPool; // In cdUnit, a unit that grows in value, to keep track of the debt increase when borrowers are on Compound. Multiply by the pool borrow index to get the underlying amount.
    }

    // Max gas to consume during the matching process for supply, borrow, withdraw and repay functions.
    struct MaxGasForMatching {
        uint64 supply;
        uint64 borrow;
        uint64 withdraw;
        uint64 repay;
    }

    struct Delta {
        uint256 p2pSupplyDelta; // Difference between the stored peer-to-peer supply amount and the real peer-to-peer supply amount (in pool supply unit).
        uint256 p2pBorrowDelta; // Difference between the stored peer-to-peer borrow amount and the real peer-to-peer borrow amount (in pool borrow unit).
        uint256 p2pSupplyAmount; // Sum of all stored peer-to-peer supply (in peer-to-peer supply unit).
        uint256 p2pBorrowAmount; // Sum of all stored peer-to-peer borrow (in peer-to-peer borrow unit).
    }

    struct AssetLiquidityData {
        uint256 collateralValue; // The collateral value of the asset.
        uint256 maxDebtValue; // The maximum possible debt value of the asset.
        uint256 debtValue; // The debt value of the asset.
        uint256 underlyingPrice; // The price of the token.
        uint256 collateralFactor; // The liquidation threshold applied on this token.
    }

    struct LiquidityData {
        uint256 collateralValue; // The collateral value.
        uint256 maxDebtValue; // The maximum debt value possible.
        uint256 debtValue; // The debt value.
    }

    // Variables are packed together to save gas (will not exceed their limit during Morpho's lifetime).
    struct LastPoolIndexes {
        uint32 lastUpdateBlockNumber; // The last time the local pool and peer-to-peer indexes were updated.
        uint112 lastSupplyPoolIndex; // Last pool supply index.
        uint112 lastBorrowPoolIndex; // Last pool borrow index.
    }

    struct MarketParameters {
        uint16 reserveFactor; // Proportion of the interest earned by users sent to the DAO for each market, in basis point (100% = 10 000). The value is set at market creation.
        uint16 p2pIndexCursor; // Position of the peer-to-peer rate in the pool's spread. Determine the weights of the weighted arithmetic average in the indexes computations ((1 - p2pIndexCursor) * r^S + p2pIndexCursor * r^B) (in basis point).
    }

    struct MarketStatus {
        bool isCreated; // Whether or not this market is created.
        bool isPaused; // Whether the market is paused or not (all entry points on Morpho are frozen; supply, borrow, withdraw, repay and liquidate).
        bool isPartiallyPaused; // Whether the market is partially paused or not (only supply and borrow are frozen).
    }
}

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

/// @notice Modern and gas efficient ERC20 + EIP-2612 implementation.
/// @author Solmate (https://github.com/Rari-Capital/solmate/blob/main/src/tokens/ERC20.sol)
/// @author Modified from Uniswap (https://github.com/Uniswap/uniswap-v2-core/blob/master/contracts/UniswapV2ERC20.sol)
/// @dev Do not manually set balances without updating totalSupply, as the sum of all user balances must not exceed it.
abstract contract ERC20 {
    /*//////////////////////////////////////////////////////////////
                                 EVENTS
    //////////////////////////////////////////////////////////////*/

    event Transfer(address indexed from, address indexed to, uint256 amount);

    event Approval(address indexed owner, address indexed spender, uint256 amount);

    /*//////////////////////////////////////////////////////////////
                            METADATA STORAGE
    //////////////////////////////////////////////////////////////*/

    string public name;

    string public symbol;

    uint8 public immutable decimals;

    /*//////////////////////////////////////////////////////////////
                              ERC20 STORAGE
    //////////////////////////////////////////////////////////////*/

    uint256 public totalSupply;

    mapping(address => uint256) public balanceOf;

    mapping(address => mapping(address => uint256)) public allowance;

    /*//////////////////////////////////////////////////////////////
                            EIP-2612 STORAGE
    //////////////////////////////////////////////////////////////*/

    uint256 internal immutable INITIAL_CHAIN_ID;

    bytes32 internal immutable INITIAL_DOMAIN_SEPARATOR;

    mapping(address => uint256) public nonces;

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

    constructor(
        string memory _name,
        string memory _symbol,
        uint8 _decimals
    ) {
        name = _name;
        symbol = _symbol;
        decimals = _decimals;

        INITIAL_CHAIN_ID = block.chainid;
        INITIAL_DOMAIN_SEPARATOR = computeDomainSeparator();
    }

    /*//////////////////////////////////////////////////////////////
                               ERC20 LOGIC
    //////////////////////////////////////////////////////////////*/

    function approve(address spender, uint256 amount) public virtual returns (bool) {
        allowance[msg.sender][spender] = amount;

        emit Approval(msg.sender, spender, amount);

        return true;
    }

    function transfer(address to, uint256 amount) public virtual returns (bool) {
        balanceOf[msg.sender] -= amount;

        // Cannot overflow because the sum of all user
        // balances can't exceed the max uint256 value.
        unchecked {
            balanceOf[to] += amount;
        }

        emit Transfer(msg.sender, to, amount);

        return true;
    }

    function transferFrom(
        address from,
        address to,
        uint256 amount
    ) public virtual returns (bool) {
        uint256 allowed = allowance[from][msg.sender]; // Saves gas for limited approvals.

        if (allowed != type(uint256).max) allowance[from][msg.sender] = allowed - amount;

        balanceOf[from] -= amount;

        // Cannot overflow because the sum of all user
        // balances can't exceed the max uint256 value.
        unchecked {
            balanceOf[to] += amount;
        }

        emit Transfer(from, to, amount);

        return true;
    }

    /*//////////////////////////////////////////////////////////////
                             EIP-2612 LOGIC
    //////////////////////////////////////////////////////////////*/

    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) public virtual {
        require(deadline >= block.timestamp, "PERMIT_DEADLINE_EXPIRED");

        // Unchecked because the only math done is incrementing
        // the owner's nonce which cannot realistically overflow.
        unchecked {
            address recoveredAddress = ecrecover(
                keccak256(
                    abi.encodePacked(
                        "\x19\x01",
                        DOMAIN_SEPARATOR(),
                        keccak256(
                            abi.encode(
                                keccak256(
                                    "Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)"
                                ),
                                owner,
                                spender,
                                value,
                                nonces[owner]++,
                                deadline
                            )
                        )
                    )
                ),
                v,
                r,
                s
            );

            require(recoveredAddress != address(0) && recoveredAddress == owner, "INVALID_SIGNER");

            allowance[recoveredAddress][spender] = value;
        }

        emit Approval(owner, spender, value);
    }

    function DOMAIN_SEPARATOR() public view virtual returns (bytes32) {
        return block.chainid == INITIAL_CHAIN_ID ? INITIAL_DOMAIN_SEPARATOR : computeDomainSeparator();
    }

    function computeDomainSeparator() internal view virtual returns (bytes32) {
        return
            keccak256(
                abi.encode(
                    keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)"),
                    keccak256(bytes(name)),
                    keccak256("1"),
                    block.chainid,
                    address(this)
                )
            );
    }

    /*//////////////////////////////////////////////////////////////
                        INTERNAL MINT/BURN LOGIC
    //////////////////////////////////////////////////////////////*/

    function _mint(address to, uint256 amount) internal virtual {
        totalSupply += amount;

        // Cannot overflow because the sum of all user
        // balances can't exceed the max uint256 value.
        unchecked {
            balanceOf[to] += amount;
        }

        emit Transfer(address(0), to, amount);
    }

    function _burn(address from, uint256 amount) internal virtual {
        balanceOf[from] -= amount;

        // Cannot underflow because a user's balance
        // will never be larger than the total supply.
        unchecked {
            totalSupply -= amount;
        }

        emit Transfer(from, address(0), amount);
    }
}

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

/// @notice Arithmetic library with operations for fixed-point numbers.
/// @author Solmate (https://github.com/Rari-Capital/solmate/blob/main/src/utils/FixedPointMathLib.sol)
/// @author Inspired by USM (https://github.com/usmfum/USM/blob/master/contracts/WadMath.sol)
library FixedPointMathLib {
    /*//////////////////////////////////////////////////////////////
                    SIMPLIFIED FIXED POINT OPERATIONS
    //////////////////////////////////////////////////////////////*/

    uint256 internal constant WAD = 1e18; // The scalar of ETH and most ERC20s.

    function mulWadDown(uint256 x, uint256 y) internal pure returns (uint256) {
        return mulDivDown(x, y, WAD); // Equivalent to (x * y) / WAD rounded down.
    }

    function mulWadUp(uint256 x, uint256 y) internal pure returns (uint256) {
        return mulDivUp(x, y, WAD); // Equivalent to (x * y) / WAD rounded up.
    }

    function divWadDown(uint256 x, uint256 y) internal pure returns (uint256) {
        return mulDivDown(x, WAD, y); // Equivalent to (x * WAD) / y rounded down.
    }

    function divWadUp(uint256 x, uint256 y) internal pure returns (uint256) {
        return mulDivUp(x, WAD, y); // Equivalent to (x * WAD) / y rounded up.
    }

    /*//////////////////////////////////////////////////////////////
                    LOW LEVEL FIXED POINT OPERATIONS
    //////////////////////////////////////////////////////////////*/

    function mulDivDown(
        uint256 x,
        uint256 y,
        uint256 denominator
    ) internal pure returns (uint256 z) {
        assembly {
            // Store x * y in z for now.
            z := mul(x, y)

            // Equivalent to require(denominator != 0 && (x == 0 || (x * y) / x == y))
            if iszero(and(iszero(iszero(denominator)), or(iszero(x), eq(div(z, x), y)))) {
                revert(0, 0)
            }

            // Divide z by the denominator.
            z := div(z, denominator)
        }
    }

    function mulDivUp(
        uint256 x,
        uint256 y,
        uint256 denominator
    ) internal pure returns (uint256 z) {
        assembly {
            // Store x * y in z for now.
            z := mul(x, y)

            // Equivalent to require(denominator != 0 && (x == 0 || (x * y) / x == y))
            if iszero(and(iszero(iszero(denominator)), or(iszero(x), eq(div(z, x), y)))) {
                revert(0, 0)
            }

            // First, divide z - 1 by the denominator and add 1.
            // We allow z - 1 to underflow if z is 0, because we multiply the
            // end result by 0 if z is zero, ensuring we return 0 if z is zero.
            z := mul(iszero(iszero(z)), add(div(sub(z, 1), denominator), 1))
        }
    }

    function rpow(
        uint256 x,
        uint256 n,
        uint256 scalar
    ) internal pure returns (uint256 z) {
        assembly {
            switch x
            case 0 {
                switch n
                case 0 {
                    // 0 ** 0 = 1
                    z := scalar
                }
                default {
                    // 0 ** n = 0
                    z := 0
                }
            }
            default {
                switch mod(n, 2)
                case 0 {
                    // If n is even, store scalar in z for now.
                    z := scalar
                }
                default {
                    // If n is odd, store x in z for now.
                    z := x
                }

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

                for {
                    // Shift n right by 1 before looping to halve it.
                    n := shr(1, n)
                } n {
                    // Shift n right by 1 each iteration to halve it.
                    n := shr(1, n)
                } {
                    // Revert immediately if x ** 2 would overflow.
                    // Equivalent to iszero(eq(div(xx, x), x)) here.
                    if shr(128, x) {
                        revert(0, 0)
                    }

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

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

                    // Revert if xx + half overflowed.
                    if lt(xxRound, xx) {
                        revert(0, 0)
                    }

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

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

                        // If z * x overflowed:
                        if iszero(eq(div(zx, x), z)) {
                            // Revert if x is non-zero.
                            if iszero(iszero(x)) {
                                revert(0, 0)
                            }
                        }

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

                        // Revert if zx + half overflowed.
                        if lt(zxRound, zx) {
                            revert(0, 0)
                        }

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

    /*//////////////////////////////////////////////////////////////
                        GENERAL NUMBER UTILITIES
    //////////////////////////////////////////////////////////////*/

    function sqrt(uint256 x) internal pure returns (uint256 z) {
        assembly {
            // Start off with z at 1.
            z := 1

            // Used below to help find a nearby power of 2.
            let y := x

            // Find the lowest power of 2 that is at least sqrt(x).
            if iszero(lt(y, 0x100000000000000000000000000000000)) {
                y := shr(128, y) // Like dividing by 2 ** 128.
                z := shl(64, z) // Like multiplying by 2 ** 64.
            }
            if iszero(lt(y, 0x10000000000000000)) {
                y := shr(64, y) // Like dividing by 2 ** 64.
                z := shl(32, z) // Like multiplying by 2 ** 32.
            }
            if iszero(lt(y, 0x100000000)) {
                y := shr(32, y) // Like dividing by 2 ** 32.
                z := shl(16, z) // Like multiplying by 2 ** 16.
            }
            if iszero(lt(y, 0x10000)) {
                y := shr(16, y) // Like dividing by 2 ** 16.
                z := shl(8, z) // Like multiplying by 2 ** 8.
            }
            if iszero(lt(y, 0x100)) {
                y := shr(8, y) // Like dividing by 2 ** 8.
                z := shl(4, z) // Like multiplying by 2 ** 4.
            }
            if iszero(lt(y, 0x10)) {
                y := shr(4, y) // Like dividing by 2 ** 4.
                z := shl(2, z) // Like multiplying by 2 ** 2.
            }
            if iszero(lt(y, 0x8)) {
                // Equivalent to 2 ** z.
                z := shl(1, z)
            }

            // Shifting right by 1 is like dividing by 2.
            z := shr(1, add(z, div(x, z)))
            z := shr(1, add(z, div(x, z)))
            z := shr(1, add(z, div(x, z)))
            z := shr(1, add(z, div(x, z)))
            z := shr(1, add(z, div(x, z)))
            z := shr(1, add(z, div(x, z)))
            z := shr(1, add(z, div(x, z)))

            // Compute a rounded down version of z.
            let zRoundDown := div(x, z)

            // If zRoundDown is smaller, use it.
            if lt(zRoundDown, z) {
                z := zRoundDown
            }
        }
    }
}

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

/// @notice Safe unsigned integer casting library that reverts on overflow.
/// @author Solmate (https://github.com/Rari-Capital/solmate/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 {
    function safeCastTo248(uint256 x) internal pure returns (uint248 y) {
        require(x < 1 << 248);

        y = uint248(x);
    }

    function safeCastTo224(uint256 x) internal pure returns (uint224 y) {
        require(x < 1 << 224);

        y = uint224(x);
    }

    function safeCastTo192(uint256 x) internal pure returns (uint192 y) {
        require(x < 1 << 192);

        y = uint192(x);
    }

    function safeCastTo160(uint256 x) internal pure returns (uint160 y) {
        require(x < 1 << 160);

        y = uint160(x);
    }

    function safeCastTo128(uint256 x) internal pure returns (uint128 y) {
        require(x < 1 << 128);

        y = uint128(x);
    }

    function safeCastTo96(uint256 x) internal pure returns (uint96 y) {
        require(x < 1 << 96);

        y = uint96(x);
    }

    function safeCastTo64(uint256 x) internal pure returns (uint64 y) {
        require(x < 1 << 64);

        y = uint64(x);
    }

    function safeCastTo32(uint256 x) internal pure returns (uint32 y) {
        require(x < 1 << 32);

        y = uint32(x);
    }

    function safeCastTo8(uint256 x) internal pure returns (uint8 y) {
        require(x < 1 << 8);

        y = uint8(x);
    }
}

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

import {ERC20} from "../tokens/ERC20.sol";

/// @notice Safe ETH and ERC20 transfer library that gracefully handles missing return values.
/// @author Solmate (https://github.com/Rari-Capital/solmate/blob/main/src/utils/SafeTransferLib.sol)
/// @dev Use with caution! Some functions in this library knowingly create dirty bits at the destination of the free memory pointer.
/// @dev Note that none of the functions in this library check that a token has code at all! That responsibility is delegated to the caller.
library SafeTransferLib {
    /*//////////////////////////////////////////////////////////////
                             ETH OPERATIONS
    //////////////////////////////////////////////////////////////*/

    function safeTransferETH(address to, uint256 amount) internal {
        bool success;

        assembly {
            // Transfer the ETH and store if it succeeded or not.
            success := call(gas(), to, amount, 0, 0, 0, 0)
        }

        require(success, "ETH_TRANSFER_FAILED");
    }

    /*//////////////////////////////////////////////////////////////
                            ERC20 OPERATIONS
    //////////////////////////////////////////////////////////////*/

    function safeTransferFrom(
        ERC20 token,
        address from,
        address to,
        uint256 amount
    ) internal {
        bool success;

        assembly {
            // Get a pointer to some free memory.
            let freeMemoryPointer := mload(0x40)

            // Write the abi-encoded calldata into memory, beginning with the function selector.
            mstore(freeMemoryPointer, 0x23b872dd00000000000000000000000000000000000000000000000000000000)
            mstore(add(freeMemoryPointer, 4), from) // Append the "from" argument.
            mstore(add(freeMemoryPointer, 36), to) // Append the "to" argument.
            mstore(add(freeMemoryPointer, 68), amount) // Append the "amount" argument.

            success := and(
                // Set success to whether the call reverted, if not we check it either
                // returned exactly 1 (can't just be non-zero data), or had no return data.
                or(and(eq(mload(0), 1), gt(returndatasize(), 31)), iszero(returndatasize())),
                // We use 100 because the length of our calldata totals up like so: 4 + 32 * 3.
                // We use 0 and 32 to copy up to 32 bytes of return data into the scratch space.
                // Counterintuitively, this call must be positioned second to the or() call in the
                // surrounding and() call or else returndatasize() will be zero during the computation.
                call(gas(), token, 0, freeMemoryPointer, 100, 0, 32)
            )
        }

        require(success, "TRANSFER_FROM_FAILED");
    }

    function safeTransfer(
        ERC20 token,
        address to,
        uint256 amount
    ) internal {
        bool success;

        assembly {
            // Get a pointer to some free memory.
            let freeMemoryPointer := mload(0x40)

            // Write the abi-encoded calldata into memory, beginning with the function selector.
            mstore(freeMemoryPointer, 0xa9059cbb00000000000000000000000000000000000000000000000000000000)
            mstore(add(freeMemoryPointer, 4), to) // Append the "to" argument.
            mstore(add(freeMemoryPointer, 36), amount) // Append the "amount" argument.

            success := and(
                // Set success to whether the call reverted, if not we check it either
                // returned exactly 1 (can't just be non-zero data), or had no return data.
                or(and(eq(mload(0), 1), gt(returndatasize(), 31)), iszero(returndatasize())),
                // We use 68 because the length of our calldata totals up like so: 4 + 32 * 2.
                // We use 0 and 32 to copy up to 32 bytes of return data into the scratch space.
                // Counterintuitively, this call must be positioned second to the or() call in the
                // surrounding and() call or else returndatasize() will be zero during the computation.
                call(gas(), token, 0, freeMemoryPointer, 68, 0, 32)
            )
        }

        require(success, "TRANSFER_FAILED");
    }

    function safeApprove(
        ERC20 token,
        address to,
        uint256 amount
    ) internal {
        bool success;

        assembly {
            // Get a pointer to some free memory.
            let freeMemoryPointer := mload(0x40)

            // Write the abi-encoded calldata into memory, beginning with the function selector.
            mstore(freeMemoryPointer, 0x095ea7b300000000000000000000000000000000000000000000000000000000)
            mstore(add(freeMemoryPointer, 4), to) // Append the "to" argument.
            mstore(add(freeMemoryPointer, 36), amount) // Append the "amount" argument.

            success := and(
                // Set success to whether the call reverted, if not we check it either
                // returned exactly 1 (can't just be non-zero data), or had no return data.
                or(and(eq(mload(0), 1), gt(returndatasize(), 31)), iszero(returndatasize())),
                // We use 68 because the length of our calldata totals up like so: 4 + 32 * 2.
                // We use 0 and 32 to copy up to 32 bytes of return data into the scratch space.
                // Counterintuitively, this call must be positioned second to the or() call in the
                // surrounding and() call or else returndatasize() will be zero during the computation.
                call(gas(), token, 0, freeMemoryPointer, 68, 0, 32)
            )
        }

        require(success, "APPROVE_FAILED");
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)

pragma solidity ^0.8.0;

import "../utils/ContextUpgradeable.sol";
import "../proxy/utils/Initializable.sol";

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * By default, the owner account will be the one that deploys the contract. This
 * can later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract OwnableUpgradeable is Initializable, ContextUpgradeable {
    address private _owner;

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

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    function __Ownable_init() internal onlyInitializing {
        __Ownable_init_unchained();
    }

    function __Ownable_init_unchained() internal onlyInitializing {
        _transferOwnership(_msgSender());
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        _checkOwner();
        _;
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if the sender is not the owner.
     */
    function _checkOwner() internal view virtual {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }

    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[49] private __gap;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (interfaces/IERC4626.sol)

pragma solidity ^0.8.0;

import "../token/ERC20/IERC20Upgradeable.sol";
import "../token/ERC20/extensions/IERC20MetadataUpgradeable.sol";

/**
 * @dev Interface of the ERC4626 "Tokenized Vault Standard", as defined in
 * https://eips.ethereum.org/EIPS/eip-4626[ERC-4626].
 *
 * _Available since v4.7._
 */
interface IERC4626Upgradeable is IERC20Upgradeable, IERC20MetadataUpgradeable {
    event Deposit(address indexed caller, address indexed owner, uint256 assets, uint256 shares);

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (proxy/utils/Initializable.sol)

pragma solidity ^0.8.2;

import "../../utils/AddressUpgradeable.sol";

/**
 * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
 * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
 * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
 * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
 *
 * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be
 * reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in
 * case an upgrade adds a module that needs to be initialized.
 *
 * For example:
 *
 * [.hljs-theme-light.nopadding]
 * ```
 * contract MyToken is ERC20Upgradeable {
 *     function initialize() initializer public {
 *         __ERC20_init("MyToken", "MTK");
 *     }
 * }
 * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {
 *     function initializeV2() reinitializer(2) public {
 *         __ERC20Permit_init("MyToken");
 *     }
 * }
 * ```
 *
 * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
 * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
 *
 * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
 * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
 *
 * [CAUTION]
 * ====
 * Avoid leaving a contract uninitialized.
 *
 * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
 * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke
 * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:
 *
 * [.hljs-theme-light.nopadding]
 * ```
 * /// @custom:oz-upgrades-unsafe-allow constructor
 * constructor() {
 *     _disableInitializers();
 * }
 * ```
 * ====
 */
abstract contract Initializable {
    /**
     * @dev Indicates that the contract has been initialized.
     * @custom:oz-retyped-from bool
     */
    uint8 private _initialized;

    /**
     * @dev Indicates that the contract is in the process of being initialized.
     */
    bool private _initializing;

    /**
     * @dev Triggered when the contract has been initialized or reinitialized.
     */
    event Initialized(uint8 version);

    /**
     * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,
     * `onlyInitializing` functions can be used to initialize parent contracts. Equivalent to `reinitializer(1)`.
     */
    modifier initializer() {
        bool isTopLevelCall = !_initializing;
        require(
            (isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1),
            "Initializable: contract is already initialized"
        );
        _initialized = 1;
        if (isTopLevelCall) {
            _initializing = true;
        }
        _;
        if (isTopLevelCall) {
            _initializing = false;
            emit Initialized(1);
        }
    }

    /**
     * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the
     * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be
     * used to initialize parent contracts.
     *
     * `initializer` is equivalent to `reinitializer(1)`, so a reinitializer may be used after the original
     * initialization step. This is essential to configure modules that are added through upgrades and that require
     * initialization.
     *
     * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in
     * a contract, executing them in the right order is up to the developer or operator.
     */
    modifier reinitializer(uint8 version) {
        require(!_initializing && _initialized < version, "Initializable: contract is already initialized");
        _initialized = version;
        _initializing = true;
        _;
        _initializing = false;
        emit Initialized(version);
    }

    /**
     * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
     * {initializer} and {reinitializer} modifiers, directly or indirectly.
     */
    modifier onlyInitializing() {
        require(_initializing, "Initializable: contract is not initializing");
        _;
    }

    /**
     * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.
     * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized
     * to any version. It is recommended to use this to lock implementation contracts that are designed to be called
     * through proxies.
     */
    function _disableInitializers() internal virtual {
        require(!_initializing, "Initializable: contract is initializing");
        if (_initialized < type(uint8).max) {
            _initialized = type(uint8).max;
            emit Initialized(type(uint8).max);
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC20/ERC20.sol)

pragma solidity ^0.8.0;

import "./IERC20Upgradeable.sol";
import "./extensions/IERC20MetadataUpgradeable.sol";
import "../../utils/ContextUpgradeable.sol";
import "../../proxy/utils/Initializable.sol";

/**
 * @dev Implementation of the {IERC20} interface.
 *
 * This implementation is agnostic to the way tokens are created. This means
 * that a supply mechanism has to be added in a derived contract using {_mint}.
 * For a generic mechanism see {ERC20PresetMinterPauser}.
 *
 * TIP: For a detailed writeup see our guide
 * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
 * to implement supply mechanisms].
 *
 * We have followed general OpenZeppelin Contracts guidelines: functions revert
 * instead returning `false` on failure. This behavior is nonetheless
 * conventional and does not conflict with the expectations of ERC20
 * applications.
 *
 * Additionally, an {Approval} event is emitted on calls to {transferFrom}.
 * This allows applications to reconstruct the allowance for all accounts just
 * by listening to said events. Other implementations of the EIP may not emit
 * these events, as it isn't required by the specification.
 *
 * Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
 * functions have been added to mitigate the well-known issues around setting
 * allowances. See {IERC20-approve}.
 */
contract ERC20Upgradeable is Initializable, ContextUpgradeable, IERC20Upgradeable, IERC20MetadataUpgradeable {
    mapping(address => uint256) private _balances;

    mapping(address => mapping(address => uint256)) private _allowances;

    uint256 private _totalSupply;

    string private _name;
    string private _symbol;

    /**
     * @dev Sets the values for {name} and {symbol}.
     *
     * The default value of {decimals} is 18. To select a different value for
     * {decimals} you should overload it.
     *
     * All two of these values are immutable: they can only be set once during
     * construction.
     */
    function __ERC20_init(string memory name_, string memory symbol_) internal onlyInitializing {
        __ERC20_init_unchained(name_, symbol_);
    }

    function __ERC20_init_unchained(string memory name_, string memory symbol_) internal onlyInitializing {
        _name = name_;
        _symbol = symbol_;
    }

    /**
     * @dev Returns the name of the token.
     */
    function name() public view virtual override returns (string memory) {
        return _name;
    }

    /**
     * @dev Returns the symbol of the token, usually a shorter version of the
     * name.
     */
    function symbol() public view virtual override returns (string memory) {
        return _symbol;
    }

    /**
     * @dev Returns the number of decimals used to get its user representation.
     * For example, if `decimals` equals `2`, a balance of `505` tokens should
     * be displayed to a user as `5.05` (`505 / 10 ** 2`).
     *
     * Tokens usually opt for a value of 18, imitating the relationship between
     * Ether and Wei. This is the value {ERC20} uses, unless this function is
     * overridden;
     *
     * NOTE: This information is only used for _display_ purposes: it in
     * no way affects any of the arithmetic of the contract, including
     * {IERC20-balanceOf} and {IERC20-transfer}.
     */
    function decimals() public view virtual override returns (uint8) {
        return 18;
    }

    /**
     * @dev See {IERC20-totalSupply}.
     */
    function totalSupply() public view virtual override returns (uint256) {
        return _totalSupply;
    }

    /**
     * @dev See {IERC20-balanceOf}.
     */
    function balanceOf(address account) public view virtual override returns (uint256) {
        return _balances[account];
    }

    /**
     * @dev See {IERC20-transfer}.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - the caller must have a balance of at least `amount`.
     */
    function transfer(address to, uint256 amount) public virtual override returns (bool) {
        address owner = _msgSender();
        _transfer(owner, to, amount);
        return true;
    }

    /**
     * @dev See {IERC20-allowance}.
     */
    function allowance(address owner, address spender) public view virtual override returns (uint256) {
        return _allowances[owner][spender];
    }

    /**
     * @dev See {IERC20-approve}.
     *
     * NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on
     * `transferFrom`. This is semantically equivalent to an infinite approval.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function approve(address spender, uint256 amount) public virtual override returns (bool) {
        address owner = _msgSender();
        _approve(owner, spender, amount);
        return true;
    }

    /**
     * @dev See {IERC20-transferFrom}.
     *
     * Emits an {Approval} event indicating the updated allowance. This is not
     * required by the EIP. See the note at the beginning of {ERC20}.
     *
     * NOTE: Does not update the allowance if the current allowance
     * is the maximum `uint256`.
     *
     * Requirements:
     *
     * - `from` and `to` cannot be the zero address.
     * - `from` must have a balance of at least `amount`.
     * - the caller must have allowance for ``from``'s tokens of at least
     * `amount`.
     */
    function transferFrom(
        address from,
        address to,
        uint256 amount
    ) public virtual override returns (bool) {
        address spender = _msgSender();
        _spendAllowance(from, spender, amount);
        _transfer(from, to, amount);
        return true;
    }

    /**
     * @dev Atomically increases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {IERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
        address owner = _msgSender();
        _approve(owner, spender, allowance(owner, spender) + addedValue);
        return true;
    }

    /**
     * @dev Atomically decreases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {IERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `spender` must have allowance for the caller of at least
     * `subtractedValue`.
     */
    function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
        address owner = _msgSender();
        uint256 currentAllowance = allowance(owner, spender);
        require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
        unchecked {
            _approve(owner, spender, currentAllowance - subtractedValue);
        }

        return true;
    }

    /**
     * @dev Moves `amount` of tokens from `from` to `to`.
     *
     * This internal function is equivalent to {transfer}, and can be used to
     * e.g. implement automatic token fees, slashing mechanisms, etc.
     *
     * Emits a {Transfer} event.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `from` must have a balance of at least `amount`.
     */
    function _transfer(
        address from,
        address to,
        uint256 amount
    ) internal virtual {
        require(from != address(0), "ERC20: transfer from the zero address");
        require(to != address(0), "ERC20: transfer to the zero address");

        _beforeTokenTransfer(from, to, amount);

        uint256 fromBalance = _balances[from];
        require(fromBalance >= amount, "ERC20: transfer amount exceeds balance");
        unchecked {
            _balances[from] = fromBalance - amount;
        }
        _balances[to] += amount;

        emit Transfer(from, to, amount);

        _afterTokenTransfer(from, to, amount);
    }

    /** @dev Creates `amount` tokens and assigns them to `account`, increasing
     * the total supply.
     *
     * Emits a {Transfer} event with `from` set to the zero address.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     */
    function _mint(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: mint to the zero address");

        _beforeTokenTransfer(address(0), account, amount);

        _totalSupply += amount;
        _balances[account] += amount;
        emit Transfer(address(0), account, amount);

        _afterTokenTransfer(address(0), account, amount);
    }

    /**
     * @dev Destroys `amount` tokens from `account`, reducing the
     * total supply.
     *
     * Emits a {Transfer} event with `to` set to the zero address.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     * - `account` must have at least `amount` tokens.
     */
    function _burn(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: burn from the zero address");

        _beforeTokenTransfer(account, address(0), amount);

        uint256 accountBalance = _balances[account];
        require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
        unchecked {
            _balances[account] = accountBalance - amount;
        }
        _totalSupply -= amount;

        emit Transfer(account, address(0), amount);

        _afterTokenTransfer(account, address(0), amount);
    }

    /**
     * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
     *
     * This internal function is equivalent to `approve`, and can be used to
     * e.g. set automatic allowances for certain subsystems, etc.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `owner` cannot be the zero address.
     * - `spender` cannot be the zero address.
     */
    function _approve(
        address owner,
        address spender,
        uint256 amount
    ) internal virtual {
        require(owner != address(0), "ERC20: approve from the zero address");
        require(spender != address(0), "ERC20: approve to the zero address");

        _allowances[owner][spender] = amount;
        emit Approval(owner, spender, amount);
    }

    /**
     * @dev Updates `owner` s allowance for `spender` based on spent `amount`.
     *
     * Does not update the allowance amount in case of infinite allowance.
     * Revert if not enough allowance is available.
     *
     * Might emit an {Approval} event.
     */
    function _spendAllowance(
        address owner,
        address spender,
        uint256 amount
    ) internal virtual {
        uint256 currentAllowance = allowance(owner, spender);
        if (currentAllowance != type(uint256).max) {
            require(currentAllowance >= amount, "ERC20: insufficient allowance");
            unchecked {
                _approve(owner, spender, currentAllowance - amount);
            }
        }
    }

    /**
     * @dev Hook that is called before any transfer of tokens. This includes
     * minting and burning.
     *
     * Calling conditions:
     *
     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
     * will be transferred to `to`.
     * - when `from` is zero, `amount` tokens will be minted for `to`.
     * - when `to` is zero, `amount` of ``from``'s tokens will be burned.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    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.
     *
     * Calling conditions:
     *
     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
     * has been transferred to `to`.
     * - when `from` is zero, `amount` tokens have been minted for `to`.
     * - when `to` is zero, `amount` of ``from``'s tokens have been burned.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _afterTokenTransfer(
        address from,
        address to,
        uint256 amount
    ) internal virtual {}

    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[45] private __gap;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20Upgradeable {
    /**
     * @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);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC20/extensions/ERC4626.sol)

pragma solidity ^0.8.0;

import "../ERC20Upgradeable.sol";
import "../utils/SafeERC20Upgradeable.sol";
import "../../../interfaces/IERC4626Upgradeable.sol";
import "../../../utils/math/MathUpgradeable.sol";
import "../../../proxy/utils/Initializable.sol";

/**
 * @dev Implementation of the ERC4626 "Tokenized Vault Standard" as defined in
 * https://eips.ethereum.org/EIPS/eip-4626[EIP-4626].
 *
 * This extension allows the minting and burning of "shares" (represented using the ERC20 inheritance) in exchange for
 * underlying "assets" through standardized {deposit}, {mint}, {redeem} and {burn} workflows. This contract extends
 * the ERC20 standard. Any additional extensions included along it would affect the "shares" token represented by this
 * contract and not the "assets" token which is an independent contract.
 *
 * CAUTION: Deposits and withdrawals may incur unexpected slippage. Users should verify that the amount received of
 * shares or assets is as expected. EOAs should operate through a wrapper that performs these checks such as
 * https://github.com/fei-protocol/ERC4626#erc4626router-and-base[ERC4626Router].
 *
 * _Available since v4.7._
 */
abstract contract ERC4626Upgradeable is Initializable, ERC20Upgradeable, IERC4626Upgradeable {
    using MathUpgradeable for uint256;

    IERC20MetadataUpgradeable private _asset;

    /**
     * @dev Set the underlying asset contract. This must be an ERC20-compatible contract (ERC20 or ERC777).
     */
    function __ERC4626_init(IERC20MetadataUpgradeable asset_) internal onlyInitializing {
        __ERC4626_init_unchained(asset_);
    }

    function __ERC4626_init_unchained(IERC20MetadataUpgradeable asset_) internal onlyInitializing {
        _asset = asset_;
    }

    /** @dev See {IERC4262-asset}. */
    function asset() public view virtual override returns (address) {
        return address(_asset);
    }

    /** @dev See {IERC4262-totalAssets}. */
    function totalAssets() public view virtual override returns (uint256) {
        return _asset.balanceOf(address(this));
    }

    /** @dev See {IERC4262-convertToShares}. */
    function convertToShares(uint256 assets) public view virtual override returns (uint256 shares) {
        return _convertToShares(assets, MathUpgradeable.Rounding.Down);
    }

    /** @dev See {IERC4262-convertToAssets}. */
    function convertToAssets(uint256 shares) public view virtual override returns (uint256 assets) {
        return _convertToAssets(shares, MathUpgradeable.Rounding.Down);
    }

    /** @dev See {IERC4262-maxDeposit}. */
    function maxDeposit(address) public view virtual override returns (uint256) {
        return _isVaultCollateralized() ? type(uint256).max : 0;
    }

    /** @dev See {IERC4262-maxMint}. */
    function maxMint(address) public view virtual override returns (uint256) {
        return type(uint256).max;
    }

    /** @dev See {IERC4262-maxWithdraw}. */
    function maxWithdraw(address owner) public view virtual override returns (uint256) {
        return _convertToAssets(balanceOf(owner), MathUpgradeable.Rounding.Down);
    }

    /** @dev See {IERC4262-maxRedeem}. */
    function maxRedeem(address owner) public view virtual override returns (uint256) {
        return balanceOf(owner);
    }

    /** @dev See {IERC4262-previewDeposit}. */
    function previewDeposit(uint256 assets) public view virtual override returns (uint256) {
        return _convertToShares(assets, MathUpgradeable.Rounding.Down);
    }

    /** @dev See {IERC4262-previewMint}. */
    function previewMint(uint256 shares) public view virtual override returns (uint256) {
        return _convertToAssets(shares, MathUpgradeable.Rounding.Up);
    }

    /** @dev See {IERC4262-previewWithdraw}. */
    function previewWithdraw(uint256 assets) public view virtual override returns (uint256) {
        return _convertToShares(assets, MathUpgradeable.Rounding.Up);
    }

    /** @dev See {IERC4262-previewRedeem}. */
    function previewRedeem(uint256 shares) public view virtual override returns (uint256) {
        return _convertToAssets(shares, MathUpgradeable.Rounding.Down);
    }

    /** @dev See {IERC4262-deposit}. */
    function deposit(uint256 assets, address receiver) public virtual override returns (uint256) {
        require(assets <= maxDeposit(receiver), "ERC4626: deposit more than max");

        uint256 shares = previewDeposit(assets);
        _deposit(_msgSender(), receiver, assets, shares);

        return shares;
    }

    /** @dev See {IERC4262-mint}. */
    function mint(uint256 shares, address receiver) public virtual override returns (uint256) {
        require(shares <= maxMint(receiver), "ERC4626: mint more than max");

        uint256 assets = previewMint(shares);
        _deposit(_msgSender(), receiver, assets, shares);

        return assets;
    }

    /** @dev See {IERC4262-withdraw}. */
    function withdraw(
        uint256 assets,
        address receiver,
        address owner
    ) public virtual override returns (uint256) {
        require(assets <= maxWithdraw(owner), "ERC4626: withdraw more than max");

        uint256 shares = previewWithdraw(assets);
        _withdraw(_msgSender(), receiver, owner, assets, shares);

        return shares;
    }

    /** @dev See {IERC4262-redeem}. */
    function redeem(
        uint256 shares,
        address receiver,
        address owner
    ) public virtual override returns (uint256) {
        require(shares <= maxRedeem(owner), "ERC4626: redeem more than max");

        uint256 assets = previewRedeem(shares);
        _withdraw(_msgSender(), receiver, owner, assets, shares);

        return assets;
    }

    /**
     * @dev Internal conversion function (from assets to shares) with support for rounding direction.
     *
     * Will revert if assets > 0, totalSupply > 0 and totalAssets = 0. That corresponds to a case where any asset
     * would represent an infinite amout of shares.
     */
    function _convertToShares(uint256 assets, MathUpgradeable.Rounding rounding) internal view virtual returns (uint256 shares) {
        uint256 supply = totalSupply();
        return
            (assets == 0 || supply == 0)
                ? assets.mulDiv(10**decimals(), 10**_asset.decimals(), rounding)
                : assets.mulDiv(supply, totalAssets(), rounding);
    }

    /**
     * @dev Internal conversion function (from shares to assets) with support for rounding direction.
     */
    function _convertToAssets(uint256 shares, MathUpgradeable.Rounding rounding) internal view virtual returns (uint256 assets) {
        uint256 supply = totalSupply();
        return
            (supply == 0)
                ? shares.mulDiv(10**_asset.decimals(), 10**decimals(), rounding)
                : shares.mulDiv(totalAssets(), supply, rounding);
    }

    /**
     * @dev Deposit/mint common workflow.
     */
    function _deposit(
        address caller,
        address receiver,
        uint256 assets,
        uint256 shares
    ) internal virtual {
        // If _asset is ERC777, `transferFrom` can trigger a reenterancy BEFORE the transfer happens through the
        // `tokensToSend` hook. On the other hand, the `tokenReceived` hook, that is triggered after the transfer,
        // calls the vault, which is assumed not malicious.
        //
        // Conclusion: we need to do the transfer before we mint so that any reentrancy would happen before the
        // assets are transfered and before the shares are minted, which is a valid state.
        // slither-disable-next-line reentrancy-no-eth
        SafeERC20Upgradeable.safeTransferFrom(_asset, caller, address(this), assets);
        _mint(receiver, shares);

        emit Deposit(caller, receiver, assets, shares);
    }

    /**
     * @dev Withdraw/redeem common workflow.
     */
    function _withdraw(
        address caller,
        address receiver,
        address owner,
        uint256 assets,
        uint256 shares
    ) internal virtual {
        if (caller != owner) {
            _spendAllowance(owner, caller, shares);
        }

        // If _asset is ERC777, `transfer` can trigger a reentrancy AFTER the transfer happens through the
        // `tokensReceived` hook. On the other hand, the `tokensToSend` hook, that is triggered before the transfer,
        // calls the vault, which is assumed not malicious.
        //
        // Conclusion: we need to do the transfer after the burn so that any reentrancy would happen after the
        // shares are burned and after the assets are transfered, which is a valid state.
        _burn(owner, shares);
        SafeERC20Upgradeable.safeTransfer(_asset, receiver, assets);

        emit Withdraw(caller, receiver, owner, assets, shares);
    }

    function _isVaultCollateralized() private view returns (bool) {
        return totalAssets() > 0 || totalSupply() == 0;
    }

    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[49] private __gap;
}

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

pragma solidity ^0.8.0;

import "../IERC20Upgradeable.sol";

/**
 * @dev Interface for the optional metadata functions from the ERC20 standard.
 *
 * _Available since v4.1._
 */
interface IERC20MetadataUpgradeable is IERC20Upgradeable {
    /**
     * @dev Returns the name of the token.
     */
    function name() external view returns (string memory);

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

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/draft-IERC20Permit.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in
 * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].
 *
 * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by
 * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't
 * need to send a transaction, and thus is not required to hold Ether at all.
 */
interface IERC20PermitUpgradeable {
    /**
     * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,
     * given ``owner``'s signed approval.
     *
     * IMPORTANT: The same issues {IERC20-approve} has related to transaction
     * ordering also apply here.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `deadline` must be a timestamp in the future.
     * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`
     * over the EIP712-formatted function arguments.
     * - the signature must use ``owner``'s current nonce (see {nonces}).
     *
     * For more information on the signature format, see the
     * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP
     * section].
     */
    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external;

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

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.0;

import "../IERC20Upgradeable.sol";
import "../extensions/draft-IERC20PermitUpgradeable.sol";
import "../../../utils/AddressUpgradeable.sol";

/**
 * @title SafeERC20
 * @dev Wrappers around ERC20 operations that throw on failure (when the token
 * contract returns false). Tokens that return no value (and instead revert or
 * throw on failure) are also supported, non-reverting calls are assumed to be
 * successful.
 * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
 * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
 */
library SafeERC20Upgradeable {
    using AddressUpgradeable for address;

    function safeTransfer(
        IERC20Upgradeable token,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
    }

    function safeTransferFrom(
        IERC20Upgradeable token,
        address from,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
    }

    /**
     * @dev Deprecated. This function has issues similar to the ones found in
     * {IERC20-approve}, and its usage is discouraged.
     *
     * Whenever possible, use {safeIncreaseAllowance} and
     * {safeDecreaseAllowance} instead.
     */
    function safeApprove(
        IERC20Upgradeable token,
        address spender,
        uint256 value
    ) internal {
        // safeApprove should only be called when setting an initial allowance,
        // or when resetting it to zero. To increase and decrease it, use
        // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
        require(
            (value == 0) || (token.allowance(address(this), spender) == 0),
            "SafeERC20: approve from non-zero to non-zero allowance"
        );
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
    }

    function safeIncreaseAllowance(
        IERC20Upgradeable token,
        address spender,
        uint256 value
    ) internal {
        uint256 newAllowance = token.allowance(address(this), spender) + value;
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
    }

    function safeDecreaseAllowance(
        IERC20Upgradeable token,
        address spender,
        uint256 value
    ) internal {
        unchecked {
            uint256 oldAllowance = token.allowance(address(this), spender);
            require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
            uint256 newAllowance = oldAllowance - value;
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
        }
    }

    function safePermit(
        IERC20PermitUpgradeable token,
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) internal {
        uint256 nonceBefore = token.nonces(owner);
        token.permit(owner, spender, value, deadline, v, r, s);
        uint256 nonceAfter = token.nonces(owner);
        require(nonceAfter == nonceBefore + 1, "SafeERC20: permit did not succeed");
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     */
    function _callOptionalReturn(IERC20Upgradeable token, bytes memory data) private {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that
        // the target address contains contract code and also asserts for success in the low-level call.

        bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
        if (returndata.length > 0) {
            // Return data is optional
            require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (utils/Address.sol)

pragma solidity ^0.8.1;

/**
 * @dev Collection of functions related to the address type
 */
library AddressUpgradeable {
    /**
     * @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
     * ====
     *
     * [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://diligence.consensys.net/posts/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/v0.5.11/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 functionCall(target, data, "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");
        require(isContract(target), "Address: call to non-contract");

        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResult(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) {
        require(isContract(target), "Address: static call to non-contract");

        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason 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 {
            // 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 (utils/Context.sol)

pragma solidity ^0.8.0;
import "../proxy/utils/Initializable.sol";

/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract ContextUpgradeable is Initializable {
    function __Context_init() internal onlyInitializing {
    }

    function __Context_init_unchained() internal onlyInitializing {
    }
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }

    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[50] private __gap;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (utils/math/Math.sol)

pragma solidity ^0.8.0;

/**
 * @dev Standard math utilities missing in the Solidity language.
 */
library MathUpgradeable {
    enum Rounding {
        Down, // Toward negative infinity
        Up, // Toward infinity
        Zero // Toward zero
    }

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

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

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

    /**
     * @dev Returns the ceiling of the division of two numbers.
     *
     * This differs from standard division with `/` in that it rounds up instead
     * of rounding down.
     */
    function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b - 1) / b can overflow on addition, so we distribute.
        return a == 0 ? 0 : (a - 1) / b + 1;
    }

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

            // Handle non-overflow cases, 256 by 256 division.
            if (prod1 == 0) {
                return prod0 / denominator;
            }

            // Make sure the result is less than 2^256. Also prevents denominator == 0.
            require(denominator > prod1);

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

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

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

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

            // Does not overflow because the denominator cannot be zero at this stage in the function.
            uint256 twos = denominator & (~denominator + 1);
            assembly {
                // Divide denominator by twos.
                denominator := div(denominator, twos)

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

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

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

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

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

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

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

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

        // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.
        // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have
        // `msb(a) <= a < 2*msb(a)`.
        // We also know that `k`, the position of the most significant bit, is such that `msb(a) = 2**k`.
        // This gives `2**k < a <= 2**(k+1)` → `2**(k/2) <= sqrt(a) < 2 ** (k/2+1)`.
        // Using an algorithm similar to the msb conmputation, we are able to compute `result = 2**(k/2)` which is a
        // good first aproximation of `sqrt(a)` with at least 1 correct bit.
        uint256 result = 1;
        uint256 x = a;
        if (x >> 128 > 0) {
            x >>= 128;
            result <<= 64;
        }
        if (x >> 64 > 0) {
            x >>= 64;
            result <<= 32;
        }
        if (x >> 32 > 0) {
            x >>= 32;
            result <<= 16;
        }
        if (x >> 16 > 0) {
            x >>= 16;
            result <<= 8;
        }
        if (x >> 8 > 0) {
            x >>= 8;
            result <<= 4;
        }
        if (x >> 4 > 0) {
            x >>= 4;
            result <<= 2;
        }
        if (x >> 2 > 0) {
            result <<= 1;
        }

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

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

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

import {ERC4626Upgradeable, ERC20Upgradeable, IERC20MetadataUpgradeable} from "@openzeppelin/contracts-upgradeable/token/ERC20/extensions/ERC4626Upgradeable.sol";

/// @title ERC4626UpgradeableSafe.
/// @author Morpho Labs.
/// @custom:contact [email protected]
/// @notice ERC4626 Tokenized Vault abstract upgradeable implementation tweaking OZ's implementation to make it safer at initialization.
abstract contract ERC4626UpgradeableSafe is ERC4626Upgradeable {
    /// CONSTRUCTOR ///

    /// @dev The contract automatically disables initializers when deployed so that nobody can highjack the implementation contract.
    constructor() {
        _disableInitializers();
    }

    /// INITIALIZER ///

    function __ERC4626UpgradeableSafe_init(
        IERC20MetadataUpgradeable _asset,
        uint256 _initialDeposit
    ) internal onlyInitializing {
        __ERC4626_init_unchained(_asset);
        __ERC4626UpgradeableSafe_init_unchained(_initialDeposit);
    }

    function __ERC4626UpgradeableSafe_init_unchained(uint256 _initialDeposit)
        internal
        onlyInitializing
    {
        // Sacrifice an initial seed of shares to ensure a healthy amount of precision in minting shares.
        // Set to 0 at your own risk.
        // Caller must have approved the asset to this contract's address.
        // See: https://github.com/Rari-Capital/solmate/issues/178
        if (_initialDeposit > 0) deposit(_initialDeposit, address(this));
    }

    /// @dev This empty reserved space is put in place to allow future versions to add new
    /// variables without shifting down storage in the inheritance chain.
    /// See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
    uint256[50] private __gap;
}

// SPDX-License-Identifier: AGPL-3.0-only
pragma solidity 0.8.13;

import {IERC4626Upgradeable} from "@openzeppelin/contracts-upgradeable/interfaces/IERC4626Upgradeable.sol";
import {IComptroller, ICToken} from "@contracts/compound/interfaces/compound/ICompound.sol";
import {IMorpho} from "@contracts/compound/interfaces/IMorpho.sol";
import {ILens} from "@contracts/compound/interfaces/ILens.sol";
import {ISupplyVaultBase} from "./interfaces/ISupplyVaultBase.sol";

import {OwnableUpgradeable} from "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol";
import {ERC20, SafeTransferLib} from "@rari-capital/solmate/src/utils/SafeTransferLib.sol";
import {Types} from "@contracts/compound/libraries/Types.sol";

import {ERC4626UpgradeableSafe, ERC4626Upgradeable, ERC20Upgradeable} from "../ERC4626UpgradeableSafe.sol";

/// @title SupplyVaultBase.
/// @author Morpho Labs.
/// @custom:contact [email protected]
/// @notice ERC4626-upgradeable Tokenized Vault abstract implementation for Morpho-Compound.
abstract contract SupplyVaultBase is ISupplyVaultBase, ERC4626UpgradeableSafe, OwnableUpgradeable {
    using SafeTransferLib for ERC20;

    /// EVENTS ///

    /// @notice Emitted when MORPHO rewards are transferred to `recipient`.
    /// @param recipient The recipient of the rewards.
    /// @param amount The amount of rewards transferred.
    event RewardsTransferred(address recipient, uint256 amount);

    /// ERRORS ///

    /// @notice Thrown when the zero address is passed as input or is the recipient address when calling `transferRewards`.
    error ZeroAddress();

    /// IMMUTABLES ///

    IMorpho public immutable morpho; // The main Morpho contract.
    address public immutable wEth; // The address of WETH token.
    ERC20 public immutable comp; // The COMP token.
    ERC20 public immutable morphoToken; // The address of the Morpho Token.
    ILens public immutable lens; // The address of the Morpho Lens.
    address public immutable recipient; // The recipient of the rewards that will redistribute them to vault's users.

    /// STORAGE ///

    address public poolToken; // The pool token corresponding to the market to supply to through this vault.

    /// CONSTRUCTOR ///

    /// @dev Initializes network-wide immutables.
    /// @param _morpho The address of the main Morpho contract.
    /// @param _morphoToken The address of the Morpho Token.
    /// @param _lens The address of the Morpho Lens.
    /// @param _recipient The recipient of the rewards that will redistribute them to vault's users.
    constructor(
        address _morpho,
        address _morphoToken,
        address _lens,
        address _recipient
    ) {
        if (
            _morpho == address(0) ||
            _morphoToken == address(0) ||
            _lens == address(0) ||
            _recipient == address(0)
        ) revert ZeroAddress();
        morpho = IMorpho(_morpho);
        wEth = morpho.wEth();
        comp = ERC20(morpho.comptroller().getCompAddress());
        morphoToken = ERC20(_morphoToken);
        lens = ILens(_lens);
        recipient = _recipient;
    }

    /// INITIALIZER ///

    /// @dev Initializes the vault.
    /// @param _poolToken The address of the pool token corresponding to the market to supply through this vault.
    /// @param _name The name of this tokenized vault.
    /// @param _symbol The symbol of this tokenized vault.
    /// @param _initialDeposit The amount of the initial deposit used to prevent pricePerShare manipulation.
    function __SupplyVaultBase_init(
        address _poolToken,
        string calldata _name,
        string calldata _symbol,
        uint256 _initialDeposit
    ) internal onlyInitializing {
        ERC20 underlyingToken = __SupplyVaultBase_init_unchained(_poolToken);

        __Ownable_init_unchained();
        __ERC20_init_unchained(_name, _symbol);
        __ERC4626_init_unchained(ERC20Upgradeable(address(underlyingToken)));
        __ERC4626UpgradeableSafe_init_unchained(_initialDeposit);
    }

    /// @dev Initializes the vault whithout initializing parent contracts (avoid the double initialization problem).
    /// @param _poolToken The address of the pool token corresponding to the market to supply through this vault.
    function __SupplyVaultBase_init_unchained(address _poolToken)
        internal
        onlyInitializing
        returns (ERC20 underlyingToken)
    {
        if (_poolToken == address(0)) revert ZeroAddress();

        poolToken = _poolToken;

        bool isEth = _poolToken == morpho.cEth();

        underlyingToken = ERC20(isEth ? wEth : ICToken(_poolToken).underlying());
        underlyingToken.safeApprove(address(morpho), type(uint256).max);
    }

    /// EXTERNAL ///

    /// @notice Transfers the MORPHO rewards to the rewards recipient.
    function transferRewards() external {
        uint256 amount = morphoToken.balanceOf(address(this));
        morphoToken.safeTransfer(recipient, amount);
        emit RewardsTransferred(recipient, amount);
    }

    /// PUBLIC ///

    /// @notice The amount of assets in the vault.
    function totalAssets()
        public
        view
        virtual
        override(IERC4626Upgradeable, ERC4626Upgradeable)
        returns (uint256)
    {
        (, , uint256 totalBalance) = lens.getCurrentSupplyBalanceInOf(poolToken, address(this));
        return totalBalance;
    }

    /// @notice Deposits an amount of assets into the vault and receive vault shares.
    /// @param assets The amount of assets to deposit.
    /// @param receiver The recipient of the vault shares.
    function deposit(uint256 assets, address receiver)
        public
        virtual
        override(IERC4626Upgradeable, ERC4626Upgradeable)
        returns (uint256)
    {
        // Update the indexes to get the most up-to-date total assets balance.
        morpho.updateP2PIndexes(poolToken);
        return super.deposit(assets, receiver);
    }

    /// @notice Mints shares of the vault and transfers assets to the vault.
    /// @param shares The number of shares to mint.
    /// @param receiver The recipient of the vault shares.
    function mint(uint256 shares, address receiver)
        public
        virtual
        override(IERC4626Upgradeable, ERC4626Upgradeable)
        returns (uint256)
    {
        // Update the indexes to get the most up-to-date total assets balance.
        morpho.updateP2PIndexes(poolToken);
        return super.mint(shares, receiver);
    }

    /// @notice Withdraws an amount of assets from the vault and burn an owner's shares.
    /// @param assets The number of assets to withdraw.
    /// @param receiver The recipient of the assets.
    /// @param owner The owner of the vault shares.
    function withdraw(
        uint256 assets,
        address receiver,
        address owner
    ) public virtual override(IERC4626Upgradeable, ERC4626Upgradeable) returns (uint256) {
        // Update the indexes to get the most up-to-date total assets balance.
        morpho.updateP2PIndexes(poolToken);
        return super.withdraw(assets, receiver, owner);
    }

    /// @notice Burn an amount of shares and receive assets.
    /// @param shares The number of shares to burn.
    /// @param receiver The recipient of the assets.
    /// @param owner The owner of the assets.
    function redeem(
        uint256 shares,
        address receiver,
        address owner
    ) public virtual override(IERC4626Upgradeable, ERC4626Upgradeable) returns (uint256) {
        // Update the indexes to get the most up-to-date total assets balance.
        morpho.updateP2PIndexes(poolToken);
        return super.redeem(shares, receiver, owner);
    }

    /// INTERNAL ///

    function _deposit(
        address _caller,
        address _receiver,
        uint256 _assets,
        uint256 _shares
    ) internal virtual override {
        super._deposit(_caller, _receiver, _assets, _shares);
        morpho.supply(poolToken, address(this), _assets);
    }

    function _withdraw(
        address _caller,
        address _receiver,
        address _owner,
        uint256 _assets,
        uint256 _shares
    ) internal virtual override {
        morpho.withdraw(poolToken, _assets);
        super._withdraw(_caller, _receiver, _owner, _assets, _shares);
    }

    /// @dev This empty reserved space is put in place to allow future versions to add new
    /// variables without shifting down storage in the inheritance chain.
    /// See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
    uint256[49] private __gap;
}

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

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

interface ISupplyVault is ISupplyVaultBase {
    function rewardsIndex() external view returns (uint256);

    function userRewards(address _user) external view returns (uint128, uint128);

    function claimRewards(address _user) external returns (uint256 rewardsAmount);
}

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

import {IERC4626Upgradeable} from "@openzeppelin/contracts-upgradeable/interfaces/IERC4626Upgradeable.sol";
import {IMorpho} from "@contracts/compound/interfaces/IMorpho.sol";
import {ERC20} from "@rari-capital/solmate/src/tokens/ERC20.sol";

interface ISupplyVaultBase is IERC4626Upgradeable {
    function morpho() external view returns (IMorpho);

    function wEth() external view returns (address);

    function comp() external view returns (ERC20);

    function poolToken() external view returns (address);

    function transferRewards() external;
}

{
  "remappings": [
    "@aave/core-v3/=lib/morpho-contracts/lib/aave-v3-core/",
    "@aave/periphery-v3/=lib/morpho-contracts/lib/aave-v3-periphery/",
    "@contracts/=lib/morpho-contracts/contracts/",
    "@forge-std/=lib/morpho-contracts/lib/forge-std/src/",
    "@morpho-dao/morpho-data-structures/=lib/morpho-contracts/lib/morpho-data-structures/contracts/",
    "@morpho-dao/morpho-utils/=lib/morpho-contracts/lib/morpho-utils/src/",
    "@morpho-labs/morpho-utils/=lib/morpho-contracts/lib/morpho-utils/src/",
    "@openzeppelin/=node_modules/@openzeppelin/",
    "@rari-capital/solmate/=lib/morpho-contracts/lib/solmate/",
    "@tests/=lib/morpho-contracts/test-foundry/",
    "@vaults/=src/",
    "aave-v3-core/=lib/morpho-contracts/lib/aave-v3-core/",
    "aave-v3-periphery/=lib/morpho-contracts/lib/aave-v3-periphery/contracts/",
    "ds-test/=lib/morpho-contracts/lib/solmate/lib/ds-test/src/",
    "forge-std/=lib/morpho-contracts/lib/forge-std/src/",
    "morpho-contracts/=lib/morpho-contracts/",
    "morpho-data-structures/=lib/morpho-contracts/lib/morpho-data-structures/",
    "morpho-utils/=lib/morpho-contracts/lib/morpho-utils/src/",
    "openzeppelin-contracts/=lib/morpho-contracts/lib/morpho-utils/lib/openzeppelin-contracts/",
    "solmate/=lib/morpho-contracts/lib/solmate/src/"
  ],
  "optimizer": {
    "enabled": true,
    "runs": 100000
  },
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "evmVersion": "london",
  "debug": {
    "revertStrings": "default"
  },
  "libraries": {}
}

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0000000000000000000000008888882f8f843896699869179fb6e4f7e3b588880000000000000000000000009994e35db50125e0df82e4c2dde62496ce330999000000000000000000000000930f1b46e1d081ec1524efd95752be3ece51ef6700000000000000000000000060345417a227ad7e312eaa1b5ec5cd1fe5e2cdc6

-----Decoded View---------------
Arg [0] : _morpho (address): 0x8888882f8f843896699869179fB6E4f7e3B58888
Arg [1] : _morphoToken (address): 0x9994E35Db50125E0DF82e4c2dde62496CE330999
Arg [2] : _lens (address): 0x930f1b46e1D081Ec1524efD95752bE3eCe51EF67
Arg [3] : _recipient (address): 0x60345417a227ad7E312eAa1B5EC5CD1Fe5E2Cdc6

-----Encoded View---------------
4 Constructor Arguments found :
Arg [0] : 0000000000000000000000008888882f8f843896699869179fb6e4f7e3b58888
Arg [1] : 0000000000000000000000009994e35db50125e0df82e4c2dde62496ce330999
Arg [2] : 000000000000000000000000930f1b46e1d081ec1524efd95752be3ece51ef67
Arg [3] : 00000000000000000000000060345417a227ad7e312eaa1b5ec5cd1fe5e2cdc6