ETH Price: $3,418.27 (-2.27%)
Gas: 7 Gwei

Contract

0xD602D2Dc3A75Ae7727798Ce2DEf90CD2651Ed52D
 

Overview

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0 ETH

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$0.00

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Transaction Hash
Method
Block
From
To
Sweep Funds178695312023-08-08 10:12:47344 days ago1691489567IN
0xD602D2Dc...2651Ed52D
0 ETH0.0015098820.94961757
Rescue Funds178695162023-08-08 10:09:47344 days ago1691489387IN
0xD602D2Dc...2651Ed52D
0 ETH0.0583840915.99958756
Rescue Funds178695072023-08-08 10:07:59344 days ago1691489279IN
0xD602D2Dc...2651Ed52D
0 ETH0.0653693216.4359512
Rescue Funds178694502023-08-08 9:56:23344 days ago1691488583IN
0xD602D2Dc...2651Ed52D
0 ETH0.0732147118.40853416
Rescue Funds178694312023-08-08 9:52:35344 days ago1691488355IN
0xD602D2Dc...2651Ed52D
0 ETH0.0599560415.07487789
Transfer Ownersh...178693972023-08-08 9:45:47344 days ago1691487947IN
0xD602D2Dc...2651Ed52D
0 ETH0.0005159318
Rescue Funds178414022023-08-04 11:44:35348 days ago1691149475IN
0xD602D2Dc...2651Ed52D
0 ETH0.057134722
Rescue Funds178274952023-08-02 13:05:11350 days ago1690981511IN
0xD602D2Dc...2651Ed52D
0 ETH0.080285430
Rescue Funds178274072023-08-02 12:47:35350 days ago1690980455IN
0xD602D2Dc...2651Ed52D
0 ETH0.056222521
Deposit173951392023-06-02 19:33:23411 days ago1685734403IN
0xD602D2Dc...2651Ed52D
0 ETH0.1439183931
Deposit173949022023-06-02 18:44:59411 days ago1685731499IN
0xD602D2Dc...2651Ed52D
0 ETH0.1240329225
Deposit173931382023-06-02 12:46:47411 days ago1685710007IN
0xD602D2Dc...2651Ed52D
0 ETH0.1706414440
Toggle Whitelist173929742023-06-02 12:13:11411 days ago1685707991IN
0xD602D2Dc...2651Ed52D
0 ETH0.0019134840
Transfer Ownersh...173928952023-06-02 11:56:47411 days ago1685707007IN
0xD602D2Dc...2651Ed52D
0 ETH0.0007813927.26144081
0x60c06040173928472023-06-02 11:46:47411 days ago1685706407IN
 Create: ReturnFinanceUSDCVault
0 ETH0.1316584629.5073714

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Contract Source Code Verified (Exact Match)

Contract Name:
ReturnFinanceUSDCVault

Compiler Version
v0.8.18+commit.87f61d96

Optimization Enabled:
Yes with 9999 runs

Other Settings:
default evmVersion
File 1 of 21 : ReturnFinanceUSDCVault.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.18;

import {Math} from "@openzeppelin/contracts/utils/math/Math.sol";
import {ERC20} from "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import {ERC4626} from "@openzeppelin/contracts/token/ERC20/extensions/ERC4626.sol";
import {Ownable} from "@openzeppelin/contracts/access/Ownable.sol";
import {Pausable} from "@openzeppelin/contracts/security/Pausable.sol";
import {SafeERC20} from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import {IAaveV3Pool} from "./interfaces/IAaveV3Pool.sol";
import {ISwapRouter} from "./interfaces/ISwapRouter.sol";
import {IYearnVault} from "./interfaces/IYearnVault.sol";
import {ICurvePoolV2} from "./interfaces/ICurvePoolV2.sol";
import {IConicOmniPool} from "./interfaces/IConicOmniPool.sol";
import {ICompoundUSDCV3} from "./interfaces/ICompoundUSDCV3.sol";
import {IConicRewardManager} from "./interfaces/IConicRewardManager.sol";
import {IConicLpTokenStaker} from "./interfaces/IConicLpTokenStaker.sol";

/**
 * @title Return Finance USDC Vault
 * @author Stanislav Trenev - <[email protected]>
 * @dev The contract leverages the ERC4626 Tokenised Vault Standard.
 * @dev This contract allows for deposits and withdrawals of USDC, and manages the allocation of USDC to different DeFi pools.
 */
contract ReturnFinanceUSDCVault is ERC4626, Ownable, Pausable {
    using SafeERC20 for IERC20;
    using Math for uint256;

    /**
     * @notice Represents the weight of each pool in the total allocation of USDC
     */
    mapping(address => uint256) public poolWeight;

    /**
     * @notice Represents the whitelist of addresses that can interact with this contract
     */
    mapping(address => bool) public whitelist;

    // Constants
    string public constant VAULT_NAME = "Return Finance USDC Vault";
    string public constant VAULT_SYMBOL = "rfUSDC";

    address public constant USDC = 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48;
    address public constant WETH = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;
    address public constant CRV = 0xD533a949740bb3306d119CC777fa900bA034cd52;
    address public constant CVX = 0x4e3FBD56CD56c3e72c1403e103b45Db9da5B9D2B;
    address public constant CNC = 0x9aE380F0272E2162340a5bB646c354271c0F5cFC;

    address public constant AAVE_V3 = 0x87870Bca3F3fD6335C3F4ce8392D69350B4fA4E2;
    address public constant A_ETH_USDC = 0x98C23E9d8f34FEFb1B7BD6a91B7FF122F4e16F5c;
    address public constant C_USDC_V3 = 0xc3d688B66703497DAA19211EEdff47f25384cdc3;
    address public constant USDC_Y_VAULT = 0xa354F35829Ae975e850e23e9615b11Da1B3dC4DE;
    address public constant CONIC_OMNI_POOL_USDC = 0x07b577f10d4e00f3018542d08a87F255a49175A5;

    address public constant CONIC_REWARD_MANAGER = 0xE976F643d4dc08Aa3CeD55b0CA391B1d11328347;
    address public constant CONIC_LP_TOKEN_STAKER = 0xeC037423A61B634BFc490dcc215236349999ca3d;

    address public constant CNC_WETH_CURVE_POOL = 0x838af967537350D2C44ABB8c010E49E32673ab94;
    address public constant CVX_WETH_CURVE_POOL = 0xB576491F1E6e5E62f1d8F26062Ee822B40B0E0d4;
    address public constant CRV_WETH_CURVE_POOL = 0x8301AE4fc9c624d1D396cbDAa1ed877821D7C511;
    address public constant UNISWAP_ROUTER_V3 = 0xE592427A0AEce92De3Edee1F18E0157C05861564;

    /**
     * @dev NotInWhitelist Error that is thrown when an address is not in the whitelist
     */
    error NotInWhitelist(address wrongAddress);
    /**
     * @dev UnableToSweep Error that is thrown when an attempt to sweep fails
     */
    error UnableToSweep(address token);
    /**
     * @dev DepositFailed Error that is thrown when a deposit fails
     */
    error DepositFailed(address depositor, uint256 amount);
    /**
     * @dev WithdrawFailed Error that is thrown when a withdrawal fails
     */
    error WithdrawFailed(address depositor, uint256 amount);
    /**
     * @dev IncorrectWeights Error that is thrown when the total weights are not correct
     */
    error IncorrectWeights(uint256 totalWeights);
    /**
     * @dev HighSlippage Error that is thrown when the slippage is too high
     */
    error HighSlippage(uint256 minAmountOut, uint256 amountOut);

    /**
     * @dev Emitted when ether is sent to this contract (a "donation")
     */
    event PoolDonation(address sender, uint256 value);

    /**
     * @dev Emitted when the contract owner sweeps an ERC20 token
     */
    event SweepFunds(address token, uint256 amount);

    /**
     * @dev Emitted when an address is added/removed to the whitelist
     */
    event AddressWhitelisted(address whitelistedAddress, bool isWhitelisted);

    /**
     * @dev Emitted when a user withdraws assets from the vault
     */
    event WithdrawFromVault(address depositor, uint256 amount);

    /**
     * @dev Emitted when a user deposits assets to the vault
     */
    event DepositToVault(address depositor, uint256 amount, bytes32 proof);
    /**
     * @dev Emitted when contract's USDC balance is re-depositted to the pools
     */
    event ReDepositToPools(uint256 amount);

    /**
     * @dev Emitted when the contract harvests Conic rewards
     */
    event HarvestConicRewards(uint256 cncAmount, uint256 crvAmount, uint256 cvxAmount, uint256 amountOut);

    /**
     * @dev Emitted when funds are rescued and withdrawn from pools
     */
    event RescueFunds(uint256 totalAEthUSDC, uint256 totalCUSDCV3, uint256 totalUSDCYVault, uint256 totalConicLpAmount);

    /**
     * @dev Emitted when the contract updates pool weights and rebalances
     */
    event PoolWeightsUpdated(
        uint256 aavePoolWeight, uint256 compoundPoolWeight, uint256 yearnPoolWeight, uint256 conicPoolWeight
    );

    /**
     * @dev Emitted when there is error in external function call
     */
    event LogError(string reason);

    /**
     * @notice Modifier that allows only whitelisted addresses to interact with the contract
     */
    modifier onlyWhitelist() {
        if (!whitelist[_msgSender()]) revert NotInWhitelist(_msgSender());
        _;
    }

    /**
     * @notice Constructor for the ReturnFinanceUSDCVault contract
     * @param _aavePoolWeightBps The weight for the AAVE pool
     * @param _compoundPoolWeightBps The weight for the Compound pool
     * @param _yearnPoolWeightBps The weight for the Yearn pool
     * @param _conicPoolWeightBps The weight for the Conic pool
     */
    constructor(
        uint256 _aavePoolWeightBps,
        uint256 _compoundPoolWeightBps,
        uint256 _yearnPoolWeightBps,
        uint256 _conicPoolWeightBps
    ) ERC4626(IERC20(USDC)) ERC20(VAULT_NAME, VAULT_SYMBOL) {
        uint256 totalWeights = _aavePoolWeightBps + _compoundPoolWeightBps + _yearnPoolWeightBps + _conicPoolWeightBps;
        if (totalWeights != 10000) revert IncorrectWeights(totalWeights);

        poolWeight[AAVE_V3] = _aavePoolWeightBps;
        poolWeight[C_USDC_V3] = _compoundPoolWeightBps;
        poolWeight[USDC_Y_VAULT] = _yearnPoolWeightBps;
        poolWeight[CONIC_OMNI_POOL_USDC] = _conicPoolWeightBps;
    }

    /**
     * @notice Function to receive ether, which emits a donation event
     */
    receive() external payable {
        emit PoolDonation(_msgSender(), msg.value);
    }

    /**
     * @notice Deposit funds into the vault
     * @param amount The amount to deposit
     * @param receiver The address that will receive the shares
     * @param proof A proof of the deposit transaction
     * @param minAmountLpConic The minimum amount to be deposited into the Conic pool
     * @param minAmountHarvest The minimum amount of USDC to be received after a swap
     * @return shares The number of shares issued to the receiver
     */
    function deposit(
        uint256 amount,
        address receiver,
        bytes32 proof,
        uint256 minAmountLpConic,
        uint256 minAmountHarvest
    ) external onlyWhitelist whenNotPaused returns (uint256 shares) {
        harvestConicRewardsAndSwapForUnderlying(minAmountHarvest);

        if (amount <= 1 * 10 ** 6) revert DepositFailed(_msgSender(), amount);
        require(amount <= maxDeposit(receiver), "ERC4626: deposit more than max");

        shares = previewDeposit(amount);
        _deposit(_msgSender(), receiver, amount, shares);
        _depositToPools(amount, minAmountLpConic);

        emit DepositToVault(_msgSender(), amount, proof);
    }

    /**
     * @notice Redeem shares for underlying assets
     * @param shares The number of shares to redeem
     * @param receiver The address that will receive the assets
     * @param owner The address of the owner of the shares
     * @param minAmountHarvest The minimum amount of USDC to be received after a swap
     * @return amountOut The amount of underlying assets received
     */
    function withdraw(uint256 shares, address receiver, address owner, uint256 minAmountOut, uint256 minAmountHarvest)
        external
        onlyWhitelist
        whenNotPaused
        returns (uint256 amountOut)
    {
        harvestConicRewardsAndSwapForUnderlying(minAmountHarvest);
        uint256 previewAmount = previewRedeem(shares);

        require(previewAmount > 0, "Return Finance: Withdraw Failed");
        require(shares <= maxRedeem(owner), "ERC4626: redeem more than max");

        uint256 underlyingTokenBalance = getUSDCBalance();

        // If there is not enough underlying token(USDC) available, we have to withdraw from the pools
        if (underlyingTokenBalance < previewAmount) {
            _withdrawFromPools(previewAmount - underlyingTokenBalance);
        }

        uint256 underlyingTokenBalanceAfter = getUSDCBalance();

        // Prevent withdrawing more funds than intended
        previewAmount > underlyingTokenBalanceAfter
            ? amountOut = underlyingTokenBalanceAfter
            : amountOut = previewAmount;

        if (amountOut < minAmountOut) revert WithdrawFailed(_msgSender(), minAmountOut);

        _withdraw(_msgSender(), receiver, owner, amountOut, shares);

        emit WithdrawFromVault(_msgSender(), amountOut);
    }

    /**
     * @notice Update the weights of pools and rebalance the funds accordingly
     * @param newAavePoolWeightBps The new weight for AAVE pool
     * @param newCompoundPoolWeightBps The new weight for Compound pool
     * @param newYearnPoolWeightBps The new weight for Yearn pool
     * @param newConicPoolWeightBps The new weight for Conic pool
     * @param minAmountLpConic The minimum amount to deposit in the Conic pool
     */
    function updatePoolWeightsAndRebalance(
        uint256 newAavePoolWeightBps,
        uint256 newCompoundPoolWeightBps,
        uint256 newYearnPoolWeightBps,
        uint256 newConicPoolWeightBps,
        uint256 minAmountLpConic
    ) external onlyOwner {
        rescueFunds(address(this));
        uint256 totalWeights =
            newAavePoolWeightBps + newCompoundPoolWeightBps + newYearnPoolWeightBps + newConicPoolWeightBps;
        if (totalWeights != 10000) revert IncorrectWeights(totalWeights);

        poolWeight[AAVE_V3] = newAavePoolWeightBps;
        poolWeight[C_USDC_V3] = newCompoundPoolWeightBps;
        poolWeight[USDC_Y_VAULT] = newYearnPoolWeightBps;
        poolWeight[CONIC_OMNI_POOL_USDC] = newConicPoolWeightBps;

        uint256 balanceInPool = getUSDCBalance();
        _depositToPools(balanceInPool, minAmountLpConic);

        emit PoolWeightsUpdated(
            newAavePoolWeightBps, newCompoundPoolWeightBps, newYearnPoolWeightBps, newConicPoolWeightBps
        );
    }

    /**
     * @notice Send all tokens or ETH held by the contract to the owner
     * @param token The token to sweep, or 0 for ETH
     */
    function sweepFunds(address token) external onlyOwner {
        if (token == address(0)) {
            (bool success,) = owner().call{value: address(this).balance}("");
            if (!success) revert UnableToSweep(token);
            emit SweepFunds(token, address(this).balance);
        } else {
            IERC20(token).safeTransfer(owner(), IERC20(token).balanceOf(address(this)));
            emit SweepFunds(token, IERC20(token).balanceOf(address(this)));
        }
    }

    /**
     * @notice Allow or disallow an address to interact with the contract
     * @param updatedAddress The address to change the whitelist status for
     * @param isWhitelisted Whether the address should be whitelisted
     */
    function toggleWhitelist(address updatedAddress, bool isWhitelisted) external onlyOwner {
        whitelist[updatedAddress] = isWhitelisted;

        emit AddressWhitelisted(updatedAddress, isWhitelisted);
    }

    /**
     * @notice Pause the contract, preventing non-owner interactions
     */
    function pause() external onlyOwner {
        _pause();
    }

    /**
     * @notice Unpause the contract, allowing non-owner interactions
     */
    function unpause() external onlyOwner {
        _unpause();
    }

    /**
     * @notice This is an empty override, please use deposit
     * @param amount The amount of funds to deposit
     * @param receiver The address to receive the shares
     * @return shares The number of shares minted
     */
    function deposit(uint256 amount, address receiver) public override returns (uint256 shares) {}

    /**
     * @notice This is an empty override, please use withdraw
     * @param amount The amount of funds to withdraw
     * @param receiver The address to receive the funds
     * @param owner The owner of the shares to burn
     * @return shares The number of shares burned
     */
    function withdraw(uint256 amount, address receiver, address owner) public override returns (uint256 shares) {}

    /**
     * @notice This is an empty override, please use withdraw
     * @param shares The number of shares to redeem
     * @param receiver The address to receive the assets
     * @param owner The owner of the shares
     * @return assets The amount of assets received
     */
    function redeem(uint256 shares, address receiver, address owner) public override returns (uint256 assets) {}

    /**
     * @notice This is an empty override, please use deposit
     * @param shares The number of shares to mint
     * @param receiver The address to receive the shares
     * @return assets The amount of assets that the shares represent
     */
    function mint(uint256 shares, address receiver) public override returns (uint256 assets) {}

    /**
     * @notice Claim and swap pending Conic rewards for the underlying asset. The swapped assets remain in the vault.
     * @param minAmountOut The minimum amount expected to receive from the swap
     * @return amountOut The actual amount received from the swap
     */
    function harvestConicRewardsAndSwapForUnderlying(uint256 minAmountOut)
        public
        whenNotPaused
        onlyWhitelist
        returns (uint256 amountOut)
    {
        if (poolWeight[CONIC_OMNI_POOL_USDC] > 0) {
            (uint256 cncAmount, uint256 crvAmount, uint256 cvxAmount) =
                IConicRewardManager(CONIC_REWARD_MANAGER).claimEarnings();

            // Swap only in case there is anything to swap
            if (cncAmount != 0) {
                _swapRewardTokenForWeth(CNC_WETH_CURVE_POOL, CNC, cncAmount);
            }

            if (crvAmount != 0) {
                _swapRewardTokenForWeth(CRV_WETH_CURVE_POOL, CRV, crvAmount);
            }

            if (cvxAmount != 0) {
                _swapRewardTokenForWeth(CVX_WETH_CURVE_POOL, CVX, cvxAmount);
            }

            uint256 amountOutWeth = IERC20(WETH).balanceOf(address(this));

            if (amountOutWeth > 0) {
                amountOut = _swapWethForUnderlying(USDC, amountOutWeth);

                if (amountOut < minAmountOut) {
                    revert HighSlippage(minAmountOut, amountOut);
                }
                emit HarvestConicRewards(cncAmount, crvAmount, cvxAmount, amountOut);
            }
        }
    }

    /**
     * @notice Rescue any locked funds from the pools
     * @param destination The address where the funds should be sent
     */
    function rescueFunds(address destination) public onlyOwner {
        uint256 totalAEthUSDC = getAaveEthUSDCBalance();
        if (totalAEthUSDC > 0) {
            try IAaveV3Pool(AAVE_V3).withdraw(USDC, totalAEthUSDC, destination) {}
            catch Error(string memory reason) {
                emit LogError(reason);
            }
        }

        uint256 totalCUSDCV3 = getCompoundUSDCV3Balance();
        if (totalCUSDCV3 > 0) {
            try ICompoundUSDCV3(C_USDC_V3).withdrawTo(destination, USDC, totalCUSDCV3) {}
            catch Error(string memory reason) {
                emit LogError(reason);
            }
        }

        uint256 totalUSDCYVault = getYVUSDCBalance();
        if (totalUSDCYVault > 0) {
            try IYearnVault(USDC_Y_VAULT).withdraw(totalUSDCYVault, destination) {}
            catch Error(string memory reason) {
                emit LogError(reason);
            }
        }

        uint256 totalConicLpAmount = getConicLpTokenBalance();
        if (totalConicLpAmount > 0) {
            try IConicOmniPool(CONIC_OMNI_POOL_USDC).unstakeAndWithdraw(totalConicLpAmount, 0) {}
            catch Error(string memory reason) {
                emit LogError(reason);
            }
        }

        emit RescueFunds(totalAEthUSDC, totalCUSDCV3, totalUSDCYVault, totalConicLpAmount);
    }

    /**
     * @notice Re-deposit underlying USDC assets sitting in the contract to the pools
     * @notice Helper function to use if there is any USDC lying around in the pool
     */
    function reDepositUnderlyingIntoPools(uint256 minAmountLpConic) external onlyOwner {
        uint256 currentUnderlyingBalance = getUSDCBalance();
        _depositToPools(currentUnderlyingBalance, minAmountLpConic);

        emit ReDepositToPools(currentUnderlyingBalance);
    }

    /**
     * @notice Calculate total assets of the contract. This does not take into account claimable rewards of CNC, CVX and CRV
     * @return Total assets in the form of uint256
     */
    function totalAssets() public view override returns (uint256) {
        return getUSDCBalance() + getAaveEthUSDCBalance() + getCompoundUSDCV3Balance()
            + getYVUSDCBalance().mulDiv(IYearnVault(USDC_Y_VAULT).pricePerShare(), 10 ** 6, Math.Rounding.Down)
            + getConicLpTokenBalance().mulDiv(
                IConicOmniPool(CONIC_OMNI_POOL_USDC).exchangeRate(), 10 ** 18, Math.Rounding.Down
            );
    }

    /**
     * @notice Get the balance of Aave ETH-USDC held by the contract
     * @return Aave ETH-USDC balance in the form of uint256
     */
    function getAaveEthUSDCBalance() public view returns (uint256) {
        return IERC20(A_ETH_USDC).balanceOf(address(this));
    }

    /**
     * @notice Get the balance of Compound USDC V3 held by the contract
     * @return Compound USDC V3 balance in the form of uint256
     */
    function getCompoundUSDCV3Balance() public view returns (uint256) {
        return IERC20(C_USDC_V3).balanceOf(address(this));
    }

    /**
     * @notice Get the balance of Yearn Finance USDC Vault tokens held by the contract
     * @return Yearn Finance USDC Vault balance in the form of uint256
     */
    function getYVUSDCBalance() public view returns (uint256) {
        return IERC20(USDC_Y_VAULT).balanceOf(address(this));
    }

    /**
     * @notice Get the balance of Conic LP tokens for a specific pool held by the contract
     * @return Conic LP token balance in the form of uint256
     */
    function getConicLpTokenBalance() public view returns (uint256) {
        return IConicLpTokenStaker(CONIC_LP_TOKEN_STAKER).getUserBalanceForPool(CONIC_OMNI_POOL_USDC, address(this));
    }

    /**
     * @notice Get the balance of USDC held by the contract
     * @return USDC balance in the form of uint256
     */
    function getUSDCBalance() public view returns (uint256) {
        return IERC20(USDC).balanceOf(address(this));
    }

    /**
     * @notice Get the calimable Rewards from Conic since latest harvest
     * @return The CNC, CRV and CVX amounts
     */
    function getClaimableRewardsFromConic() public view returns (uint256, uint256, uint256) {
        return IConicRewardManager(CONIC_REWARD_MANAGER).claimableRewards(address(this));
    }

    /**
     * @notice Deposit the specified amount into each pool, relative to its weight
     * @param amount The total amount to deposit
     * @param minAmountLpConic The minimum amount to deposit in the Conic pool
     */
    function _depositToPools(uint256 amount, uint256 minAmountLpConic) internal {
        uint256 amountToDepositAave = 0;
        uint256 amountToDepositCompound = 0;
        uint256 amountToDepositYearn = 0;
        uint256 amountToDepositConic = 0;
        // Deposit to Aave protocol
        uint256 aavePoolWeightBps = poolWeight[AAVE_V3];

        if (aavePoolWeightBps > 0) {
            amountToDepositAave = amount.mulDiv(aavePoolWeightBps, 10000);
            require(IERC20(USDC).approve(AAVE_V3, amountToDepositAave), "Return Finance: Approve Failed");
            try IAaveV3Pool(AAVE_V3).supply(USDC, amountToDepositAave, address(this), 0) {}
            catch Error(string memory reason) {
                emit LogError(reason);
            }
        }

        // Depoist to Compound protocol and receive cUSDCv3 via supply method.
        uint256 compoundPoolWeightBps = poolWeight[C_USDC_V3];

        if (compoundPoolWeightBps > 0) {
            amountToDepositCompound = amount.mulDiv(compoundPoolWeightBps, 10000);
            require(IERC20(USDC).approve(C_USDC_V3, amountToDepositCompound), "Return Finance: Approve Failed");
            try ICompoundUSDCV3(C_USDC_V3).supply(USDC, amountToDepositCompound) {}
            catch Error(string memory reason) {
                emit LogError(reason);
            }
        }

        // Deposit to yEarn USDC Vault. Using directly the vault, instead of YearnPartnerTracker.
        uint256 yearnPoolWeightBps = poolWeight[USDC_Y_VAULT];

        if (yearnPoolWeightBps > 0) {
            amountToDepositYearn = amount.mulDiv(yearnPoolWeightBps, 10000);
            require(IERC20(USDC).approve(USDC_Y_VAULT, amountToDepositYearn), "Return Finance: Approve Failed");
            try IYearnVault(USDC_Y_VAULT).deposit(amountToDepositYearn) {}
            catch Error(string memory reason) {
                emit LogError(reason);
            }
        }

        // Deposit to Conic Finance.
        uint256 conicPoolWeightBps = poolWeight[CONIC_OMNI_POOL_USDC];

        if (conicPoolWeightBps > 0) {
            // Prevent dust staying in the ocntract
            amountToDepositConic = amount - amountToDepositAave - amountToDepositCompound - amountToDepositYearn;
            require(IERC20(USDC).approve(CONIC_OMNI_POOL_USDC, amountToDepositConic), "Return Finance: Approve Failed");
            try IConicOmniPool(CONIC_OMNI_POOL_USDC).depositFor(
                address(this), amountToDepositConic, minAmountLpConic, true
            ) {} catch Error(string memory reason) {
                emit LogError(reason);
            }
        }
    }
    /**
     * @notice Withdraw the specified amount from each pool, relative to its weight
     * @param amount The total amount to withdraw
     */

    function _withdrawFromPools(uint256 amount) internal {
        uint256 amountToWithdrawAave = 0;
        uint256 amountToWithdrawCompound = 0;
        uint256 amountToWithdrawYearn = 0;
        uint256 amountToWithdrawFromConic = 0;
        // Withdraw form Aave protocol
        uint256 aavePoolWeightBps = poolWeight[AAVE_V3];
        if (aavePoolWeightBps > 0) {
            amountToWithdrawAave = amount.mulDiv(aavePoolWeightBps, 10000);
            try IAaveV3Pool(AAVE_V3).withdraw(USDC, amountToWithdrawAave, address(this)) {}
            catch Error(string memory reason) {
                emit LogError(reason);
            }
        }

        // Withdraw from Compound protocol
        uint256 compoundPoolWeightBps = poolWeight[C_USDC_V3];
        if (compoundPoolWeightBps > 0) {
            amountToWithdrawCompound = amount.mulDiv(compoundPoolWeightBps, 10000);
            try ICompoundUSDCV3(C_USDC_V3).withdraw(USDC, amountToWithdrawCompound) {}
            catch Error(string memory reason) {
                emit LogError(reason);
            }
        }

        // Withdraw from yEarn vault
        uint256 yearnPoolWeightBps = poolWeight[USDC_Y_VAULT];
        if (yearnPoolWeightBps > 0) {
            amountToWithdrawYearn = amount.mulDiv(yearnPoolWeightBps, 10000);
            uint256 pricePerShare = IYearnVault(USDC_Y_VAULT).pricePerShare();
            uint256 amountToWithdrawYearnShares = amountToWithdrawYearn.mulDiv(10 ** 6, pricePerShare);
            uint256 totalYvUSDCBalance = getYVUSDCBalance();
            if (amountToWithdrawYearnShares > totalYvUSDCBalance) {
                try IYearnVault(USDC_Y_VAULT).withdraw(totalYvUSDCBalance) {}
                catch Error(string memory reason) {
                    emit LogError(reason);
                }
            } else {
                try IYearnVault(USDC_Y_VAULT).withdraw(amountToWithdrawYearnShares) {}
                catch Error(string memory reason) {
                    emit LogError(reason);
                }
            }
        }

        // Withdraw from Conic Omnipool
        uint256 conicPoolWeightBps = poolWeight[CONIC_OMNI_POOL_USDC];
        if (conicPoolWeightBps > 0) {
            amountToWithdrawFromConic = amount - amountToWithdrawAave - amountToWithdrawCompound - amountToWithdrawYearn;
            uint256 exchangeRate = IConicOmniPool(CONIC_OMNI_POOL_USDC).exchangeRate();
            uint256 conicLpAmount = amountToWithdrawFromConic.mulDiv((10 ** 18), exchangeRate);
            uint256 totalConicLpAmount = getConicLpTokenBalance();
            if (conicLpAmount > totalConicLpAmount) {
                try IConicOmniPool(CONIC_OMNI_POOL_USDC).unstakeAndWithdraw(totalConicLpAmount, totalConicLpAmount) {}
                catch Error(string memory reason) {
                    emit LogError(reason);
                }
            } else {
                try IConicOmniPool(CONIC_OMNI_POOL_USDC).unstakeAndWithdraw(conicLpAmount, conicLpAmount) {}
                catch Error(string memory reason) {
                    emit LogError(reason);
                }
            }
        }
    }

    /**
     * @notice Swap a reward token for WETH
     * @param pool The Curve pool address to be used for the swap
     * @param token The address of the token to be swapped
     * @param amount The amount of tokens to be swapped
     */
    function _swapRewardTokenForWeth(address pool, address token, uint256 amount) internal {
        require(IERC20(token).approve(pool, amount), "Return Finance: Approve Failed");
        ICurvePoolV2(pool).exchange(1, 0, amount, 0, false, address(this));
    }

    /**
     * @notice Swap WETH for the underlying token (USDC)
     * @param token The address of the token to be received
     * @param amountIn The amount of WETH to be swapped
     * @return amountOut The amount of tokens received from the swap
     */
    function _swapWethForUnderlying(address token, uint256 amountIn) internal returns (uint256 amountOut) {
        require(IERC20(WETH).approve(UNISWAP_ROUTER_V3, amountIn), "Return Finance: Approve Failed");

        ISwapRouter.ExactInputSingleParams memory params = ISwapRouter.ExactInputSingleParams({
            tokenIn: WETH,
            tokenOut: token,
            fee: 500,
            recipient: address(this),
            deadline: block.timestamp,
            amountIn: amountIn,
            amountOutMinimum: 0,
            sqrtPriceLimitX96: 0
        });
        amountOut = ISwapRouter(UNISWAP_ROUTER_V3).exactInputSingle(params);
    }
}

File 2 of 21 : Ownable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable.sol)

pragma solidity ^0.8.0;

import "../utils/Context.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 Ownable is Context {
    address private _owner;

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

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor() {
        _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. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby disabling 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);
    }
}

File 3 of 21 : IERC4626.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (interfaces/IERC4626.sol)

pragma solidity ^0.8.0;

import "../token/ERC20/IERC20.sol";
import "../token/ERC20/extensions/IERC20Metadata.sol";

/**
 * @dev Interface of the ERC4626 "Tokenized Vault Standard", as defined in
 * https://eips.ethereum.org/EIPS/eip-4626[ERC-4626].
 *
 * _Available since v4.7._
 */
interface IERC4626 is IERC20, IERC20Metadata {
    event Deposit(address indexed sender, address indexed owner, uint256 assets, uint256 shares);

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

File 4 of 21 : Pausable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (security/Pausable.sol)

pragma solidity ^0.8.0;

import "../utils/Context.sol";

/**
 * @dev Contract module which allows children to implement an emergency stop
 * mechanism that can be triggered by an authorized account.
 *
 * This module is used through inheritance. It will make available the
 * modifiers `whenNotPaused` and `whenPaused`, which can be applied to
 * the functions of your contract. Note that they will not be pausable by
 * simply including this module, only once the modifiers are put in place.
 */
abstract contract Pausable is Context {
    /**
     * @dev Emitted when the pause is triggered by `account`.
     */
    event Paused(address account);

    /**
     * @dev Emitted when the pause is lifted by `account`.
     */
    event Unpaused(address account);

    bool private _paused;

    /**
     * @dev Initializes the contract in unpaused state.
     */
    constructor() {
        _paused = false;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is not paused.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    modifier whenNotPaused() {
        _requireNotPaused();
        _;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is paused.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    modifier whenPaused() {
        _requirePaused();
        _;
    }

    /**
     * @dev Returns true if the contract is paused, and false otherwise.
     */
    function paused() public view virtual returns (bool) {
        return _paused;
    }

    /**
     * @dev Throws if the contract is paused.
     */
    function _requireNotPaused() internal view virtual {
        require(!paused(), "Pausable: paused");
    }

    /**
     * @dev Throws if the contract is not paused.
     */
    function _requirePaused() internal view virtual {
        require(paused(), "Pausable: not paused");
    }

    /**
     * @dev Triggers stopped state.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    function _pause() internal virtual whenNotPaused {
        _paused = true;
        emit Paused(_msgSender());
    }

    /**
     * @dev Returns to normal state.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    function _unpause() internal virtual whenPaused {
        _paused = false;
        emit Unpaused(_msgSender());
    }
}

File 5 of 21 : ERC20.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/ERC20.sol)

pragma solidity ^0.8.0;

import "./IERC20.sol";
import "./extensions/IERC20Metadata.sol";
import "../../utils/Context.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.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How
 * to implement supply mechanisms].
 *
 * The default value of {decimals} is 18. To change this, you should override
 * this function so it returns a different value.
 *
 * 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 ERC20 is Context, IERC20, IERC20Metadata {
    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}.
     *
     * All two of these values are immutable: they can only be set once during
     * construction.
     */
    constructor(string memory name_, string memory symbol_) {
        _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 default value returned by this function, unless
     * it's 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;
            // Overflow not possible: the sum of all balances is capped by totalSupply, and the sum is preserved by
            // decrementing then incrementing.
            _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;
        unchecked {
            // Overflow not possible: balance + amount is at most totalSupply + amount, which is checked above.
            _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;
            // Overflow not possible: amount <= accountBalance <= totalSupply.
            _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 {}
}

File 6 of 21 : ERC4626.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/extensions/ERC4626.sol)

pragma solidity ^0.8.0;

import "../ERC20.sol";
import "../utils/SafeERC20.sol";
import "../../../interfaces/IERC4626.sol";
import "../../../utils/math/Math.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]
 * ====
 * In empty (or nearly empty) ERC-4626 vaults, deposits are at high risk of being stolen through frontrunning
 * with a "donation" to the vault that inflates the price of a share. This is variously known as a donation or inflation
 * attack and is essentially a problem of slippage. Vault deployers can protect against this attack by making an initial
 * deposit of a non-trivial amount of the asset, such that price manipulation becomes infeasible. Withdrawals may
 * similarly be affected by slippage. Users can protect against this attack as well as unexpected slippage in general by
 * verifying the amount received is as expected, using a wrapper that performs these checks such as
 * https://github.com/fei-protocol/ERC4626#erc4626router-and-base[ERC4626Router].
 *
 * Since v4.9, this implementation uses virtual assets and shares to mitigate that risk. The `_decimalsOffset()`
 * corresponds to an offset in the decimal representation between the underlying asset's decimals and the vault
 * decimals. This offset also determines the rate of virtual shares to virtual assets in the vault, which itself
 * determines the initial exchange rate. While not fully preventing the attack, analysis shows that the default offset
 * (0) makes it non-profitable, as a result of the value being captured by the virtual shares (out of the attacker's
 * donation) matching the attacker's expected gains. With a larger offset, the attack becomes orders of magnitude more
 * expensive than it is profitable. More details about the underlying math can be found
 * xref:erc4626.adoc#inflation-attack[here].
 *
 * The drawback of this approach is that the virtual shares do capture (a very small) part of the value being accrued
 * to the vault. Also, if the vault experiences losses, the users try to exit the vault, the virtual shares and assets
 * will cause the first user to exit to experience reduced losses in detriment to the last users that will experience
 * bigger losses. Developers willing to revert back to the pre-v4.9 behavior just need to override the
 * `_convertToShares` and `_convertToAssets` functions.
 *
 * To learn more, check out our xref:ROOT:erc4626.adoc[ERC-4626 guide].
 * ====
 *
 * _Available since v4.7._
 */
abstract contract ERC4626 is ERC20, IERC4626 {
    using Math for uint256;

    IERC20 private immutable _asset;
    uint8 private immutable _underlyingDecimals;

    /**
     * @dev Set the underlying asset contract. This must be an ERC20-compatible contract (ERC20 or ERC777).
     */
    constructor(IERC20 asset_) {
        (bool success, uint8 assetDecimals) = _tryGetAssetDecimals(asset_);
        _underlyingDecimals = success ? assetDecimals : 18;
        _asset = asset_;
    }

    /**
     * @dev Attempts to fetch the asset decimals. A return value of false indicates that the attempt failed in some way.
     */
    function _tryGetAssetDecimals(IERC20 asset_) private view returns (bool, uint8) {
        (bool success, bytes memory encodedDecimals) = address(asset_).staticcall(
            abi.encodeWithSelector(IERC20Metadata.decimals.selector)
        );
        if (success && encodedDecimals.length >= 32) {
            uint256 returnedDecimals = abi.decode(encodedDecimals, (uint256));
            if (returnedDecimals <= type(uint8).max) {
                return (true, uint8(returnedDecimals));
            }
        }
        return (false, 0);
    }

    /**
     * @dev Decimals are computed by adding the decimal offset on top of the underlying asset's decimals. This
     * "original" value is cached during construction of the vault contract. If this read operation fails (e.g., the
     * asset has not been created yet), a default of 18 is used to represent the underlying asset's decimals.
     *
     * See {IERC20Metadata-decimals}.
     */
    function decimals() public view virtual override(IERC20Metadata, ERC20) returns (uint8) {
        return _underlyingDecimals + _decimalsOffset();
    }

    /** @dev See {IERC4626-asset}. */
    function asset() public view virtual override returns (address) {
        return address(_asset);
    }

    /** @dev See {IERC4626-totalAssets}. */
    function totalAssets() public view virtual override returns (uint256) {
        return _asset.balanceOf(address(this));
    }

    /** @dev See {IERC4626-convertToShares}. */
    function convertToShares(uint256 assets) public view virtual override returns (uint256) {
        return _convertToShares(assets, Math.Rounding.Down);
    }

    /** @dev See {IERC4626-convertToAssets}. */
    function convertToAssets(uint256 shares) public view virtual override returns (uint256) {
        return _convertToAssets(shares, Math.Rounding.Down);
    }

    /** @dev See {IERC4626-maxDeposit}. */
    function maxDeposit(address) public view virtual override returns (uint256) {
        return type(uint256).max;
    }

    /** @dev See {IERC4626-maxMint}. */
    function maxMint(address) public view virtual override returns (uint256) {
        return type(uint256).max;
    }

    /** @dev See {IERC4626-maxWithdraw}. */
    function maxWithdraw(address owner) public view virtual override returns (uint256) {
        return _convertToAssets(balanceOf(owner), Math.Rounding.Down);
    }

    /** @dev See {IERC4626-maxRedeem}. */
    function maxRedeem(address owner) public view virtual override returns (uint256) {
        return balanceOf(owner);
    }

    /** @dev See {IERC4626-previewDeposit}. */
    function previewDeposit(uint256 assets) public view virtual override returns (uint256) {
        return _convertToShares(assets, Math.Rounding.Down);
    }

    /** @dev See {IERC4626-previewMint}. */
    function previewMint(uint256 shares) public view virtual override returns (uint256) {
        return _convertToAssets(shares, Math.Rounding.Up);
    }

    /** @dev See {IERC4626-previewWithdraw}. */
    function previewWithdraw(uint256 assets) public view virtual override returns (uint256) {
        return _convertToShares(assets, Math.Rounding.Up);
    }

    /** @dev See {IERC4626-previewRedeem}. */
    function previewRedeem(uint256 shares) public view virtual override returns (uint256) {
        return _convertToAssets(shares, Math.Rounding.Down);
    }

    /** @dev See {IERC4626-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 {IERC4626-mint}.
     *
     * As opposed to {deposit}, minting is allowed even if the vault is in a state where the price of a share is zero.
     * In this case, the shares will be minted without requiring any assets to be deposited.
     */
    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 {IERC4626-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 {IERC4626-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.
     */
    function _convertToShares(uint256 assets, Math.Rounding rounding) internal view virtual returns (uint256) {
        return assets.mulDiv(totalSupply() + 10 ** _decimalsOffset(), totalAssets() + 1, rounding);
    }

    /**
     * @dev Internal conversion function (from shares to assets) with support for rounding direction.
     */
    function _convertToAssets(uint256 shares, Math.Rounding rounding) internal view virtual returns (uint256) {
        return shares.mulDiv(totalAssets() + 1, totalSupply() + 10 ** _decimalsOffset(), 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 reentrancy 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 transferred and before the shares are minted, which is a valid state.
        // slither-disable-next-line reentrancy-no-eth
        SafeERC20.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 transferred, which is a valid state.
        _burn(owner, shares);
        SafeERC20.safeTransfer(_asset, receiver, assets);

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

    function _decimalsOffset() internal view virtual returns (uint8) {
        return 0;
    }
}

File 7 of 21 : IERC20Metadata.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)

pragma solidity ^0.8.0;

import "../IERC20.sol";

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

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

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

File 8 of 21 : IERC20Permit.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/extensions/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 IERC20Permit {
    /**
     * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,
     * given ``owner``'s signed approval.
     *
     * IMPORTANT: The same issues {IERC20-approve} has related to transaction
     * ordering also apply here.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `deadline` must be a timestamp in the future.
     * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`
     * over the EIP712-formatted function arguments.
     * - the signature must use ``owner``'s current nonce (see {nonces}).
     *
     * For more information on the signature format, see the
     * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP
     * section].
     */
    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);
}

File 9 of 21 : IERC20.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

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

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

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

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

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

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

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

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

File 10 of 21 : SafeERC20.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.0;

import "../IERC20.sol";
import "../extensions/IERC20Permit.sol";
import "../../../utils/Address.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 SafeERC20 {
    using Address for address;

    /**
     * @dev Transfer `value` amount of `token` from the calling contract to `to`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeTransfer(IERC20 token, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
    }

    /**
     * @dev Transfer `value` amount of `token` from `from` to `to`, spending the approval given by `from` to the
     * calling contract. If `token` returns no value, non-reverting calls are assumed to be successful.
     */
    function safeTransferFrom(IERC20 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(IERC20 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));
    }

    /**
     * @dev Increase the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        uint256 oldAllowance = token.allowance(address(this), spender);
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance + value));
    }

    /**
     * @dev Decrease the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        unchecked {
            uint256 oldAllowance = token.allowance(address(this), spender);
            require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance - value));
        }
    }

    /**
     * @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful. Compatible with tokens that require the approval to be set to
     * 0 before setting it to a non-zero value.
     */
    function forceApprove(IERC20 token, address spender, uint256 value) internal {
        bytes memory approvalCall = abi.encodeWithSelector(token.approve.selector, spender, value);

        if (!_callOptionalReturnBool(token, approvalCall)) {
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, 0));
            _callOptionalReturn(token, approvalCall);
        }
    }

    /**
     * @dev Use a ERC-2612 signature to set the `owner` approval toward `spender` on `token`.
     * Revert on invalid signature.
     */
    function safePermit(
        IERC20Permit 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(IERC20 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");
        require(returndata.length == 0 || abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation 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).
     *
     * This is a variant of {_callOptionalReturn} that silents catches all reverts and returns a bool instead.
     */
    function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) {
        // 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 cannot use {Address-functionCall} here since this should return false
        // and not revert is the subcall reverts.

        (bool success, bytes memory returndata) = address(token).call(data);
        return
            success && (returndata.length == 0 || abi.decode(returndata, (bool))) && Address.isContract(address(token));
    }
}

File 11 of 21 : Address.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol)

pragma solidity ^0.8.1;

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

        return account.code.length > 0;
    }

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

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

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

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

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

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

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

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

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

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

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

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

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

File 12 of 21 : Context.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)

pragma solidity ^0.8.0;

/**
 * @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 Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

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

File 13 of 21 : Math.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/math/Math.sol)

pragma solidity ^0.8.0;

/**
 * @dev Standard math utilities missing in the Solidity language.
 */
library Math {
    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) {
                // Solidity will revert if denominator == 0, unlike the div opcode on its own.
                // The surrounding unchecked block does not change this fact.
                // See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic.
                return prod0 / denominator;
            }

            // Make sure the result is less than 2^256. Also prevents denominator == 0.
            require(denominator > prod1, "Math: mulDiv overflow");

            ///////////////////////////////////////////////
            // 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. If 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)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.
        //
        // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`
        // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`
        // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`
        //
        // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.
        uint256 result = 1 << (log2(a) >> 1);

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

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

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

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

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

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

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

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

File 14 of 21 : IAaveV3Pool.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.18;

interface IAaveV3Pool {
    function supply(
        address asset,
        uint256 amount,
        address onBehalfOf,
        uint16 referralCode
    ) external;

    function withdraw(address asset, uint256 amount, address to) external;
}

File 15 of 21 : ICompoundUSDCV3.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.18;

interface ICompoundUSDCV3 {
    function allow(address who, bool status) external;

    function supply(address asset, uint amount) external;

    function withdraw(address asset, uint amount) external;

    function withdrawTo(address to, address asset, uint amount) external;
}

File 16 of 21 : IConicLpTokenStaker.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.18;

interface IConicLpTokenStaker {
    function getUserBalanceForPool(
        address conicPool,
        address account
    ) external view returns (uint256);
}

File 17 of 21 : IConicOmniPool.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.18;

interface IConicOmniPool {
    function depositFor(
        address _account,
        uint256 _amount,
        uint256 _minLpReceived,
        bool stake
    ) external returns (uint256);

    function unstakeAndWithdraw(
        uint256 _conicLpAmount,
        uint256 _minUnderlyingReceived
    ) external returns (uint256);

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

File 18 of 21 : IConicRewardManager.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.18;

interface IConicRewardManager {
    function claimEarnings() external returns (uint256, uint256, uint256);
    function claimableRewards(address account) external view returns (uint256, uint256, uint256);
}

File 19 of 21 : ICurvePoolV2.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.18;

interface ICurvePoolV2 {
    function token() external view returns (address);

    function coins(uint256 i) external view returns (address);

    function factory() external view returns (address);

    function exchange(
        uint256 i,
        uint256 j,
        uint256 dx,
        uint256 min_dy,
        bool use_eth,
        address receiver
    ) external;

    function exchange_underlying(
        uint256 i,
        uint256 j,
        uint256 dx,
        uint256 min_dy,
        address receiver
    ) external returns (uint256);

    function add_liquidity(
        uint256[2] memory amounts,
        uint256 min_mint_amount,
        bool use_eth,
        address receiver
    ) external returns (uint256);

    function add_liquidity(uint256[2] memory amounts, uint256 min_mint_amount)
        external
        returns (uint256);

    function add_liquidity(
        uint256[3] memory amounts,
        uint256 min_mint_amount,
        bool use_eth,
        address receiver
    ) external returns (uint256);

    function add_liquidity(uint256[3] memory amounts, uint256 min_mint_amount)
        external
        returns (uint256);

    function remove_liquidity(
        uint256 _amount,
        uint256[2] memory min_amounts,
        bool use_eth,
        address receiver
    ) external;

    function remove_liquidity(uint256 _amount, uint256[2] memory min_amounts)
        external;

    function remove_liquidity(
        uint256 _amount,
        uint256[3] memory min_amounts,
        bool use_eth,
        address receiver
    ) external;

    function remove_liquidity(uint256 _amount, uint256[3] memory min_amounts)
        external;

    function remove_liquidity_one_coin(
        uint256 token_amount,
        uint256 i,
        uint256 min_amount,
        bool use_eth,
        address receiver
    ) external returns (uint256);

    function get_dy(
        uint256 i,
        uint256 j,
        uint256 dx
    ) external view returns (uint256);

    function calc_token_amount(uint256[] memory amounts)
        external
        view
        returns (uint256);

    function calc_withdraw_one_coin(uint256 token_amount, uint256 i)
        external
        view
        returns (uint256);

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

File 20 of 21 : ISwapRouter.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.18;

interface ISwapRouter {
    struct ExactInputSingleParams {
        address tokenIn;
        address tokenOut;
        uint24 fee;
        address recipient;
        uint deadline;
        uint amountIn;
        uint amountOutMinimum;
        uint160 sqrtPriceLimitX96;
    }

    /// @notice Swaps amountIn of one token for as much as possible of another token
    /// @param params The parameters necessary for the swap, encoded as ExactInputSingleParams in calldata
    /// @return amountOut The amount of the received token
    function exactInputSingle(
        ExactInputSingleParams calldata params
    ) external payable returns (uint amountOut);

    struct ExactInputParams {
        bytes path;
        address recipient;
        uint deadline;
        uint amountIn;
        uint amountOutMinimum;
    }

    /// @notice Swaps amountIn of one token for as much as possible of another along the specified path
    /// @param params The parameters necessary for the multi-hop swap, encoded as ExactInputParams in calldata
    /// @return amountOut The amount of the received token
    function exactInput(
        ExactInputParams calldata params
    ) external payable returns (uint amountOut);
}

File 21 of 21 : IYearnVault.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.18;

interface IYearnVault {
    function deposit(uint256 _amount) external;

    function withdraw(uint256 maxShares) external;

    function withdraw(uint256 maxShares, address recipient) external;

    function pricePerShare() external view returns (uint256);

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

Settings
{
  "optimizer": {
    "enabled": true,
    "runs": 9999
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

Contract Security Audit

Contract ABI

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r","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Unpaused","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":true,"internalType":"address","name":"receiver","type":"address"},{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":false,"internalType":"uint256","name":"assets","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"shares","type":"uint256"}],"name":"Withdraw","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"depositor","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"WithdrawFromVault","type":"event"},{"inputs":[],"name":"AAVE_V3","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"A_ETH_USDC","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"CNC","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"CNC_WETH_CURVE_POOL","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"CONIC_LP_TOKEN_STAKER","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"CONIC_OMNI_POOL_USDC","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"CONIC_REWARD_MANAGER","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"CRV","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"CRV_WETH_CURVE_POOL","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"CVX","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"CVX_WETH_CURVE_POOL","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"C_USDC_V3","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"UNISWAP_ROUTER_V3","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"USDC","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"USDC_Y_VAULT","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"VAULT_NAME","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"VAULT_SYMBOL","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"WETH","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"asset","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"shares","type":"uint256"}],"name":"convertToAssets","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"assets","type":"uint256"}],"name":"convertToShares","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"subtractedValue","type":"uint256"}],"name":"decrea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{"inputs":[{"internalType":"uint256","name":"minAmountLpConic","type":"uint256"}],"name":"reDepositUnderlyingIntoPools","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"shares","type":"uint256"},{"internalType":"address","name":"receiver","type":"address"},{"internalType":"address","name":"owner","type":"address"}],"name":"redeem","outputs":[{"internalType":"uint256","name":"assets","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"destination","type":"address"}],"name":"rescueFunds","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"}],"name":"sweepFunds","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"updatedAddress","type":"address"},{"internalType":"bool","name":"isWhitelisted","type":"bool"}],"name":"toggleWhitelist","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"totalAssets","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"unpause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"newAavePoolWeightBps","type":"uint256"},{"internalType":"uint256","name":"newCompoundPoolWeightBps","type":"uint256"},{"internalType":"uint256","name":"newYearnPoolWeightBps","type":"uint256"},{"internalType":"uint256","name":"newConicPoolWeightBps","type":"uint256"},{"internalType":"uint256","name":"minAmountLpConic","type":"uint256"}],"name":"updatePoolWeightsAndRebalance","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"whitelist","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"shares","type":"uint256"},{"internalType":"address","name":"receiver","type":"address"},{"internalType":"address","name":"owner","type":"address"},{"internalType":"uint256","name":"minAmountOut","type":"uint256"},{"internalType":"uint256","name":"minAmountHarvest","type":"uint256"}],"name":"withdraw","outputs":[{"internalType":"uint256","name":"amountOut","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"address","name":"receiver","type":"address"},{"internalType":"address","name":"owner","type":"address"}],"name":"withdraw","outputs":[{"internalType":"uint256","name":"shares","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]

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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)

0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002710

-----Decoded View---------------
Arg [0] : _aavePoolWeightBps (uint256): 0
Arg [1] : _compoundPoolWeightBps (uint256): 0
Arg [2] : _yearnPoolWeightBps (uint256): 0
Arg [3] : _conicPoolWeightBps (uint256): 10000

-----Encoded View---------------
4 Constructor Arguments found :
Arg [0] : 0000000000000000000000000000000000000000000000000000000000000000
Arg [1] : 0000000000000000000000000000000000000000000000000000000000000000
Arg [2] : 0000000000000000000000000000000000000000000000000000000000000000
Arg [3] : 0000000000000000000000000000000000000000000000000000000000002710


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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.