Contract Address Details

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

Arg [0] (address) : 0x598ca9ca53d5bb84fd56fe41c3f40ed15d731e18
Arg [1] (address) : 0xf97b79ece2f95e7b63a05f1fd73a59a1ef3e4fd7
Arg [2] (uint256) : 5000000000000
Arg [3] (string) : cyUSDC
Arg [4] (string) : CY_USDC
Arg [5] (address) : 0x2b7eeaf01d706b466b8f1af9c4f9d56ffbf00f10
Arg [6] (address) : 0x5922f957c2df08fe3dd5f6dd8f2f7fe14ff9c43f

              

//SPDX-License-Identifier: MIT
pragma solidity 0.8.19;
//=============================================================================
//IMPORTS
//=============================================================================
import "@openzeppelin/contracts/utils/ReentrancyGuard.sol";
import "../lib/solmate/src/tokens/ERC4626.sol";
import "./interface/ICYDyson.sol";
import "./interface/IPair.sol";
import "./interface/IFarm.sol";
import "./interface/IERC20.sol";
import "./lib/TransferHelper.sol";
import "./lib/SqrtMath.sol";
/**
@title Vault
@notice This contract is used to store the yield strategies of the protocol
*/
contract Vault is ERC4626, ReentrancyGuard {
    using TransferHelper for address;
    using SqrtMath for *;
    //=============================================================================
    //STATE VARIABLES
    //=============================================================================
    struct VaultUser {
        uint points;
        uint debt;
        uint credit;
        uint collateral;
        uint lastRedistributed;
    }
    mapping(address => VaultUser) public vaultUsers;
    address[] public users;
    /// @dev 50/40/10 ratio for debt paydown, credit reward, and protocol reward
    uint public constant DEBT_PAYDOWN_RATIO = 5000;
    uint public constant CREDIT_REWARD_RATIO = 4000;
    uint public constant PROTOCOL_REWARD_RATIO = 1000;
    /// @dev Basis points for percentages
    uint public constant BPS = 10_000;
    /// @dev Maximum tokens that can be heled by the vault at a time
    uint public immutable MAX_VAULT_CAPACITY;
    /// @dev Addresses to track synthetic asset and treasury
    address public immutable TREASURY_ADDRESS;
    ICYDyson public immutable CYDYSON_ADDRESS;
    uint public vaultPoints;
    uint public vaultTVL;
    /// @dev Maximum loan-to-value ratio
    uint public constant MAX_LTV = 50;
    //======================== DYSON/USDC POOL INTEGRATION ========================
    /// @dev Address to store the DYSON/USDC pool on Sepolia
    address public constant DYSON_USDC_POOL =
        0xd0f3c7d3d02909014303d13223302eFB80A29Ff3;
    /// @dev Address to store the farm on Sepolia
    address public constant FARM = 0x09E1c1C6b273d7fB7F56066D191B7A15205aFcBc;
    /// @dev Address to store the DYSON token on Sepolia
    address public constant DYSON = 0xeDC2B3Bebbb4351a391363578c4248D672Ba7F9B;
    /// @dev Address to store the USDC token on Sepolia
    address public constant USDC = 0xFA0bd2B4d6D629AdF683e4DCA310c562bCD98E4E;
    struct Position {
        uint index;
        uint spAmount;
        bool hasDepositedAsset;
    }
    struct Note {
        uint token0Amt;
        uint token1Amt;
        uint due;
    }
    mapping(address => mapping(address => uint)) public positionsCount;
    mapping(address => mapping(address => mapping(uint => Position)))
        public positions;
    /// @notice Notes created by user, indexed by note number
    mapping(address => mapping(uint => Note)) public notes;
    uint public lastUpdateTime;
    uint public spSnapshot; //sp in farm at last update
    uint public spPending; //sp to be added to pool
    uint public updatePeriod = 1 minutes;
    uint public spPool;
    address public owner;
    uint public dysonPool;
    uint public adminFeeRatio;
    uint private constant MAX_ADMIN_FEE_RATIO = 1e18;
    uint constant MAX_FEE_RATIO = 2 ** 64;
    uint private constant MAX_FEE_RATIO_SQRT = 2 ** 32;
    //=============================================================================
    //EVENTS
    //=============================================================================
    /**
    @dev Emitted when a user deposits assets into the vault
    @param pair The address of the pair
    @param user The address of the user
    @param noteId The ID of the note
    @param positionId The ID of the position
    @param spAmount The amount of SP added to the pool
     */
    event Deposited(
        address indexed pair,
        address indexed user,
        uint noteId,
        uint positionId,
        uint spAmount
    );
    event Deposit();
    /**
    @dev Emitted when a user borrows synthetic assets
    @param user The address of the user
    @param amount The amount of synthetic assets borrowed
    */
    event Borrowed(address indexed user, uint256 amount);
    /**
    @dev Emitted when the yield is redistributed
    @param user The address of the user
    @param paydown The amount of the user's share of the paydown
    @param creditReward The amount of the user's share of the credit reward
    @param protocolFee The amount of the user's share of the protocol fee
    */
    event YieldRedistributed(
        address indexed user,
        uint paydown,
        uint creditReward,
        uint protocolFee,
        uint spBefore
    );
    /**
    @dev Emitted when the vault receives DYSON tokens
    @param ownerAmount The amount of DYSON tokens sent to the owner
    @param poolAmount The amount of DYSON tokens added to the pool
    */
    event DYSONReceived(uint ownerAmount, uint poolAmount);
    //=============================================================================
    //ERRORS
    //=============================================================================
    /**
    @dev Error when the deposit amount is less than zero
    @param _assets The amount of assets deposited
    */
    error DepositLessThanZero(uint _assets);
    /**
    @dev Error when the deposit limit is reached 
    */
    error DepositLimitReached();
    /**
    @dev Error when the withdraw receiver address is zero
    */
    error ZeroAddress();
    /**
    @dev Error when the withdraw caller has not made a deposit
    @param _caller The address of the caller
    */
    error NotADepositor(address _caller);
    /**
    @dev Error when the borrow amount is less than zero
    @param _amount The amount of synthetic assets borrowed
    */
    error BorrowLessThanZero(uint _amount);
    /**
    @dev Error when the borrow amount is more than the user's credit
    @param _amount The amount of synthetic assets borrowed
    @param _credit The amount of synthetic assets the user can borrow
    */
    error BorrowExceedsCredit(uint _amount, uint _credit);
    /**
     * @dev Error when the user's yield has been redistributed in the last 24 hours
     */
    error YieldRedistributedRecently();
    /**
    @dev Error when the user has insufficient synthetic assets to repay
    @param _amount The amount of synthetic assets repaid
    @param _balance The amount of synthetic assets the user has
    */
    error InsufficientSyntheticAssets(uint _amount, uint _balance);
    /**
    @dev Error when the user has not deposited assets to Dyson Finance
    @param _user The address of the user
    */
    error NoDepositedAssets(address _user);
    //=============================================================================
    //CONSTRUCTOR
    //=============================================================================
    /**
    @dev Initializes the vault with the underlying asset, name, symbol, and synthetic assets.
    @param _asset Either DYSN or USDC address based on the DYSN/USDC pool in Dyson Finance
    @param _maxVaultCapacity The maximum capacity of the vault, to control price impact and prevent an imbalance in the pool
    @param _name The name of the points that represent the user's share of the vault
    @param _symbol The symbol of the points that represent the user's share of the vault
    @param _cyDysonAddress The address of the synthetic asset that can be borrowed against the vault
     */
    constructor(
        address _owner,
        address _asset, // DYSN or USDC
        uint256 _maxVaultCapacity,
        string memory _name, //cyDYSN or cyUSDC
        string memory _symbol, //cyDYSN or cyUSDC
        ICYDyson _cyDysonAddress, //cyDyson
        address _treasury
    ) ERC4626(ERC20(_asset), _name, _symbol) {
        CYDYSON_ADDRESS = _cyDysonAddress;
        MAX_VAULT_CAPACITY = _maxVaultCapacity;
        TREASURY_ADDRESS = _treasury;
        owner = _owner;
    }
    //=============================================================================
    //EXTERNAL FUNCTIONS
    //=============================================================================
    /// @dev integration from dyson finance
    function depositToVault(
        address tokenIn, //DYSN
        address tokenOut, //USDC
        uint256 input //USDC is 8 decimals
    ) external nonReentrant returns (uint output) {
        uint spBefore = _update();
        //check if this contract has the allowance to spend the input
        if (IERC20(tokenIn).allowance(address(this), DYSON_USDC_POOL) < input) {
            IERC20(tokenIn).approve(DYSON_USDC_POOL, input);
        }
        if (IERC20(tokenIn).allowance(msg.sender, address(this)) < input) {
            IERC20(tokenIn).approve(address(this), input);
        }
        tokenIn.safeTransferFrom(msg.sender, address(this), input);
        //find out if tokenIn is DYSN or USDC
        bool tokenIsDyson = tokenIn == DYSON ? true : false;
        uint minOutput;
        //get the min output from the Router contract
        if (tokenIsDyson) {
            (uint reserve0, uint reserve1) = IPair(DYSON_USDC_POOL)
                .getReserves();
            (uint64 _feeRatio0, ) = IPair(DYSON_USDC_POOL).getFeeRatio();
            uint fee = (uint(_feeRatio0) * input) / MAX_FEE_RATIO;
            uint inputLessFee = input - fee;
            minOutput = (inputLessFee * reserve1) / (reserve0 + inputLessFee);
        } else {
            (uint reserve0, uint reserve1) = IPair(DYSON_USDC_POOL)
                .getReserves();
            (, uint64 _feeRatio1) = IPair(DYSON_USDC_POOL).getFeeRatio();
            uint fee = (uint(_feeRatio1) * input) / MAX_FEE_RATIO;
            uint inputLessFee = input - fee;
            minOutput = (inputLessFee * reserve0) / (reserve1 + inputLessFee);
        }
        return
            _deposit(tokenIn, tokenOut, 1, input, minOutput, 1 days, spBefore);
    }
    /**
     * @dev Borrow function that allows a user to borrow a synthetic asset against the underlying vault asset deposit.
     * @param _amount The amount of synthetic assets to borrow.
     * @notice Check that the borrow amount is at a maximum of 50% of the collateral
     * @notice Check that the user has enough collateral to borrow
     * @notice Mint the synthetic asset to the user
     * @notice Borrow amount must be greater than zero
     * @notice Increase the user's debt, decrease the user's credit
     * @notice WIP: MAKE SURE THAT THE BORROW AMOUNT IS LESS THAN OR EQUAL TO THE LTV
     */
    function borrow(uint256 _amount) external nonReentrant {
        if (!(_amount > 0)) {
            revert BorrowLessThanZero(_amount);
        }
        if (!(_amount <= vaultUsers[msg.sender].credit)) {
            revert BorrowExceedsCredit(_amount, vaultUsers[msg.sender].credit);
        }
        vaultUsers[msg.sender].debt += _amount;
        vaultUsers[msg.sender].credit -= _amount;
        IERC20(address(this)).approve(address(this), MAX_VAULT_CAPACITY);
        ICYDyson(CYDYSON_ADDRESS).mint(msg.sender, _amount * 1e12);
        emit Borrowed(msg.sender, _amount * 1e12);
    }
    /**
    @dev Mechanism to redistribute yield
    @dev this will be called automatically in the background when the user connects to the vault
    @notice the yield will be redistributed based on some conditions:
    - Yield will be collected by the vault and redistributed back to users based on their points (representing their share of the vault)
    - 50% of the yield will be used to pay down user's debt (if no debt, then it will be used to increase user's credit)
    - 40% of the yield will be used to increase user's credit
    - 10% of the yield will be used to be sent to the treasury
    @dev formula to calculate the yield by the user
        - first, calculate the user's share of the vault (user's points / total points)
        - then, calculate the user's share of the yield (user's share of the vault * total yield)
        - then, calculate the user's share of the paydown (user's share of the yield * 50%)
        - then, calculate the user's share of the credit reward (user's share of the yield * 40%)
        - then, calculate the user's share of the protocol fee (user's share of the yield * 10%)
    @dev if yield in dy
    */
    function redistributeYield(
        uint index // 1
    ) public returns (uint token0Amt, uint token1Amt) {
        uint spBefore = _update();
        Position storage position = positions[DYSON_USDC_POOL][msg.sender][
            index
        ];
        if (!(position.hasDepositedAsset)) {
            revert NoDepositedAssets(msg.sender);
        }
        if (vaultUsers[msg.sender].points == 0) {
            revert NotADepositor(msg.sender);
        }
        if (
            block.timestamp - vaultUsers[msg.sender].lastRedistributed < 86400
        ) {
            revert YieldRedistributedRecently();
        }
        position.hasDepositedAsset = false;
        //will need to hardcode the below temporarily cause of time constraints
        // (token0Amt, token1Amt) = IPair(DYSON_USDC_POOL).withdraw(
        //     position.index,
        //     address(this)
        // );
        Note storage note = notes[msg.sender][index];
        token0Amt = note.token0Amt;
        token1Amt = note.token1Amt;
        uint due = note.due;
        note.token0Amt = 0;
        note.token1Amt = 0;
        note.due = 0;
        (uint reserve0, uint reserve1) = IPair(DYSON_USDC_POOL).getReserves();
        (uint64 _feeRatio0, uint64 _feeRatio1) = IPair(DYSON_USDC_POOL)
            .getFeeRatio();
        if (
            (((MAX_FEE_RATIO * (MAX_FEE_RATIO - uint(_feeRatio0))) /
                (MAX_FEE_RATIO - uint(_feeRatio1))).sqrt() * token0Amt) /
                reserve0 <
            (MAX_FEE_RATIO_SQRT * token1Amt) / reserve1
        ) {
            token1Amt = 0;
            // IPair(DYSON_USDC_POOL).swap0in(
            //     address(this),
            //     token0Amt,
            //     (token0Amt * 90) / 100
            // );
            // uint64 feeRatioAdded = uint64(
            //     (token0Amt * MAX_FEE_RATIO) / reserve0
            // );
            // _updateFeeRatio0(_feeRatio0, feeRatioAdded);
            // emit Withdraw(address(this), true, index, token0Amt);
            //provide a fixed return for now
            USDC.safeTransferFrom(msg.sender, address(this), 100_000_000);
        } else {
            token0Amt = 0;
            USDC.safeTransferFrom(msg.sender, address(this), 100_000_000);
            // uint64 feeRatioAdded = uint64(
            //     (token1Amt * MAX_FEE_RATIO) / reserve1
            // );
            // _updateFeeRatio1(_feeRatio1, feeRatioAdded);
            // emit Withdraw(address(this), false, index, token1Amt);
        }
        //token0 is Dyson, token1 is USDC
        // (address token0, address token1) = DYSON < USDC
        //     ? (DYSON, USDC)
        //     : (USDC, DYSON);
        uint totalYield = token0Amt == 0 ? token1Amt : token0Amt;
        //get the user's share of the vault
        uint256 userShareOfVault = (vaultUsers[msg.sender].points * BPS) /
            vaultPoints;
        //get the user's share of the yield
        uint256 userShareOfYield = (userShareOfVault * totalYield) / BPS;
        //get the user's share of the paydown
        uint256 userShareOfPaydown = (userShareOfYield * DEBT_PAYDOWN_RATIO) /
            BPS;
        //get the user's share of the credit reward
        uint256 userShareOfCreditReward = (userShareOfYield *
            CREDIT_REWARD_RATIO) / BPS;
        //get the user's share of the protocol fee
        uint256 userShareOfProtocolFee = (userShareOfYield *
            PROTOCOL_REWARD_RATIO) / BPS;
        //decrease the user's debt.
        //if the user's debt is less than the user's share of the paydown, then the user's debt will be set to zero.
        //if there is no debt, then the user's credit will be increased by the user's share of the paydown
        if (vaultUsers[msg.sender].debt < userShareOfPaydown) {
            vaultUsers[msg.sender].debt = 0;
            vaultUsers[msg.sender].credit += userShareOfPaydown;
            USDC.safeTransferFrom(
                address(this),
                address(0),
                userShareOfPaydown
            );
        } else {
            vaultUsers[msg.sender].debt -= userShareOfPaydown;
            USDC.safeTransferFrom(
                address(this),
                address(0),
                userShareOfPaydown
            );
        }
        //increase the user's credit by the user's share of the credit reward
        vaultUsers[msg.sender].credit += userShareOfCreditReward;
        USDC.safeTransferFrom(
            address(this),
            msg.sender,
            userShareOfCreditReward
        );
        //send the user's share of the protocol fee to the treasury
        USDC.safeTransferFrom(
            address(this),
            TREASURY_ADDRESS,
            userShareOfProtocolFee
        );
        //update the user's last redistributed time
        vaultUsers[msg.sender].lastRedistributed = block.timestamp;
        //emit the YieldRedistributed event
        emit YieldRedistributed(
            msg.sender,
            userShareOfPaydown,
            userShareOfCreditReward,
            userShareOfProtocolFee,
            spBefore
        );
    }
    //=============================================================================
    //INTERNAL FUNCTIONS
    //=============================================================================
    function _update() internal returns (uint spInFarm) {
        if (lastUpdateTime + updatePeriod < block.timestamp) {
            try IFarm(FARM).swap(address(this)) {} catch {}
            lastUpdateTime = block.timestamp;
        }
        spInFarm = IFarm(FARM).balanceOf(address(this));
        if (spInFarm < spSnapshot) {
            spPool += spPending;
            spPending = 0;
            uint newBalance = IERC20(DYSON).balanceOf(address(this));
            if (newBalance > dysonPool) {
                uint dysonAdded = newBalance - dysonPool;
                uint adminFee = (dysonAdded * adminFeeRatio) /
                    MAX_ADMIN_FEE_RATIO;
                uint poolIncome = dysonAdded - adminFee;
                dysonPool += poolIncome;
                IERC20(DYSON).transfer(owner, adminFee);
                emit DYSONReceived(adminFee, poolIncome);
            }
        }
    }
    /**
     * @dev Deposits the underlying asset into the Dyson Finance vault. Either DYSN, or USDC.
     * @param input The amount of the asset to deposit
     */
    function _deposit(
        address tokenIn,
        address tokenOut,
        uint index,
        uint input,
        uint minOutput,
        uint time,
        uint spBefore
    ) internal returns (uint output) {
        //checks
        if (!(input > 0)) {
            revert DepositLessThanZero(input);
        }
        if (!(vaultTVL + input <= MAX_VAULT_CAPACITY)) {
            revert DepositLimitReached();
        }
        //effects
        vaultUsers[msg.sender].collateral += input;
        vaultUsers[msg.sender].credit =
            (vaultUsers[msg.sender].collateral * MAX_LTV) /
            100;
        vaultTVL += input;
        //interactions
        (address token0, ) = sortTokens(tokenIn, tokenOut);
        uint noteCount = IPair(DYSON_USDC_POOL).noteCount(address(this));
        if (tokenIn == token0)
            output = IPair(DYSON_USDC_POOL).deposit0(
                address(this),
                input,
                minOutput,
                time
            );
        else
            output = IPair(DYSON_USDC_POOL).deposit1(
                address(this),
                input,
                minOutput,
                time
            );
        uint spAfter = IFarm(FARM).balanceOf(address(this)); //get a hardcoded address for the farm
        uint spAdded = spAfter - spBefore;
        spPending += spAdded;
        spSnapshot = spAfter;
        uint positionId = positionsCount[DYSON_USDC_POOL][msg.sender];
        Position storage position = positions[DYSON_USDC_POOL][msg.sender][
            positionId
        ];
        position.index = noteCount;
        position.spAmount = spAdded;
        position.hasDepositedAsset = true;
        positionsCount[DYSON_USDC_POOL][msg.sender]++;
        uint256 receivedPoints = deposit(input, msg.sender);
        vaultUsers[msg.sender].points += receivedPoints;
        vaultPoints += receivedPoints;
        users.push(msg.sender);
        emit Deposited(
            DYSON_USDC_POOL,
            msg.sender,
            noteCount,
            positionId,
            spAdded
        );
    }
    //=============================================================================
    //VIEW FUNCTIONS
    //=============================================================================
    function getMaxVaultCapacity()
        public
        view
        returns (uint256 _maxVaultCapacity)
    {
        return MAX_VAULT_CAPACITY;
    }
    /**
    @dev Returns the current user data
    @return VaultUser The current user data
    */
    function getUserData() public view returns (VaultUser memory) {
        return vaultUsers[msg.sender];
    }
    /**
    @dev Returns the user details
    @param _userAddress The address of the user
    @return VaultUser The user details
    */
    function getUserDetails(
        address _userAddress
    ) public view returns (VaultUser memory) {
        return vaultUsers[_userAddress];
    }
    /**
    @dev Returns the cyDyson address
    @return _cyDysonAddress The cyDyson address
    */
    function getCyDysonAddress() public view returns (address _cyDysonAddress) {
        return address(CYDYSON_ADDRESS);
    }
    /**
    @dev Returns the treasury address
    @return _treasuryAddress The treasury address
    */
    function getTreasuryAddress()
        public
        view
        returns (address _treasuryAddress)
    {
        return TREASURY_ADDRESS;
    }
    function getTotalBorrowed() public view returns (uint256) {
        uint256 totalBorrowed;
        for (uint256 i = 0; i < users.length; i++) {
            totalBorrowed += vaultUsers[users[i]].debt;
        }
        return totalBorrowed;
    }
    function getTotalCredit() public view returns (uint256) {
        uint256 totalCredit;
        for (uint256 i = 0; i < users.length; i++) {
            totalCredit += vaultUsers[users[i]].credit;
        }
        return totalCredit;
    }
    /**
    @dev Returns the total value locked in the vault
    @return _vaultTVL The total value locked in the vault
    */
    function getVaultTVL() public view returns (uint256 _vaultTVL) {
        return vaultTVL;
    }
    //=============================================================================
    //PURE FUNCTIONS
    //=============================================================================
    /// @dev returns sorted token addresses, used to handle return values from pairs sorted in this order
    function sortTokens(
        address tokenA,
        address tokenB
    ) internal pure returns (address token0, address token1) {
        require(tokenA != tokenB, "identical addresses");
        (token0, token1) = tokenA < tokenB
            ? (tokenA, tokenB)
            : (tokenB, tokenA);
        require(token0 != address(0), "zero address");
    }
    function totalAssets() public view override returns (uint256) {
        return vaultTVL;
    }
    /**
    @dev Returns the current LTV
    @return _LTV The current LTV
     */
    function getLTV() public pure returns (uint256 _LTV) {
        return MAX_LTV;
    }
    /**
    @dev Returns the current protocol reward ratio
    @return _protocolRewardRatio The current protocol reward ratio
    */
    function getProtocolRewardRatio() public pure returns (uint256) {
        return PROTOCOL_REWARD_RATIO;
    }
    /**
    @dev Returns the current debt paydown ratio
    @return _debtPaydownRatio The current debt paydown ratio
    */
    function getDebtPaydownRatio() public pure returns (uint256) {
        return DEBT_PAYDOWN_RATIO;
    }
    /**
    @dev Returns the current credit reward ratio
    @return _creditRewardRatio The current credit reward ratio
    */
    function getCreditRewardRatio() public pure returns (uint256) {
        return CREDIT_REWARD_RATIO;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/ReentrancyGuard.sol)
pragma solidity 0.8.19;
/**
 * @dev Contract module that helps prevent reentrant calls to a function.
 *
 * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
 * available, which can be applied to functions to make sure there are no nested
 * (reentrant) calls to them.
 *
 * Note that because there is a single `nonReentrant` guard, functions marked as
 * `nonReentrant` may not call one another. This can be worked around by making
 * those functions `private`, and then adding `external` `nonReentrant` entry
 * points to them.
 *
 * TIP: If you would like to learn more about reentrancy and alternative ways
 * to protect against it, check out our blog post
 * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
 */
abstract contract ReentrancyGuard {
    // Booleans are more expensive than uint256 or any type that takes up a full
    // word because each write operation emits an extra SLOAD to first read the
    // slot's contents, replace the bits taken up by the boolean, and then write
    // back. This is the compiler's defense against contract upgrades and
    // pointer aliasing, and it cannot be disabled.
    // The values being non-zero value makes deployment a bit more expensive,
    // but in exchange the refund on every call to nonReentrant will be lower in
    // amount. Since refunds are capped to a percentage of the total
    // transaction's gas, it is best to keep them low in cases like this one, to
    // increase the likelihood of the full refund coming into effect.
    uint256 private constant NOT_ENTERED = 1;
    uint256 private constant ENTERED = 2;
    uint256 private _status;
    /**
     * @dev Unauthorized reentrant call.
     */
    error ReentrancyGuardReentrantCall();
    constructor() {
        _status = NOT_ENTERED;
    }
    /**
     * @dev Prevents a contract from calling itself, directly or indirectly.
     * Calling a `nonReentrant` function from another `nonReentrant`
     * function is not supported. It is possible to prevent this from happening
     * by making the `nonReentrant` function external, and making it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        _nonReentrantBefore();
        _;
        _nonReentrantAfter();
    }
    function _nonReentrantBefore() private {
        // On the first call to nonReentrant, _status will be NOT_ENTERED
        if (_status == ENTERED) {
            revert ReentrancyGuardReentrantCall();
        }
        // Any calls to nonReentrant after this point will fail
        _status = ENTERED;
    }
    function _nonReentrantAfter() private {
        // By storing the original value once again, a refund is triggered (see
        // https://eips.ethereum.org/EIPS/eip-2200)
        _status = NOT_ENTERED;
    }
    /**
     * @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a
     * `nonReentrant` function in the call stack.
     */
    function _reentrancyGuardEntered() internal view returns (bool) {
        return _status == ENTERED;
    }
}

// SPDX-License-Identifier: AGPL-3.0-only
pragma solidity >=0.8.0;
/// @notice Modern and gas efficient ERC20 + EIP-2612 implementation.
/// @author Solmate (https://github.com/transmissions11/solmate/blob/main/src/tokens/ERC20.sol)
/// @author Modified from Uniswap (https://github.com/Uniswap/uniswap-v2-core/blob/master/contracts/UniswapV2ERC20.sol)
/// @dev Do not manually set balances without updating totalSupply, as the sum of all user balances must not exceed it.
abstract contract ERC20 {
    /*//////////////////////////////////////////////////////////////
                                 EVENTS
    //////////////////////////////////////////////////////////////*/
    event Transfer(address indexed from, address indexed to, uint256 amount);
    event Approval(address indexed owner, address indexed spender, uint256 amount);
    /*//////////////////////////////////////////////////////////////
                            METADATA STORAGE
    //////////////////////////////////////////////////////////////*/
    string public name;
    string public symbol;
    uint8 public immutable decimals;
    /*//////////////////////////////////////////////////////////////
                              ERC20 STORAGE
    //////////////////////////////////////////////////////////////*/
    uint256 public totalSupply;
    mapping(address => uint256) public balanceOf;
    mapping(address => mapping(address => uint256)) public allowance;
    /*//////////////////////////////////////////////////////////////
                            EIP-2612 STORAGE
    //////////////////////////////////////////////////////////////*/
    uint256 internal immutable INITIAL_CHAIN_ID;
    bytes32 internal immutable INITIAL_DOMAIN_SEPARATOR;
    mapping(address => uint256) public nonces;
    /*//////////////////////////////////////////////////////////////
                               CONSTRUCTOR
    //////////////////////////////////////////////////////////////*/
    constructor(
        string memory _name,
        string memory _symbol,
        uint8 _decimals
    ) {
        name = _name;
        symbol = _symbol;
        decimals = _decimals;
        INITIAL_CHAIN_ID = block.chainid;
        INITIAL_DOMAIN_SEPARATOR = computeDomainSeparator();
    }
    /*//////////////////////////////////////////////////////////////
                               ERC20 LOGIC
    //////////////////////////////////////////////////////////////*/
    function approve(address spender, uint256 amount) public virtual returns (bool) {
        allowance[msg.sender][spender] = amount;
        emit Approval(msg.sender, spender, amount);
        return true;
    }
    function transfer(address to, uint256 amount) public virtual returns (bool) {
        balanceOf[msg.sender] -= amount;
        // Cannot overflow because the sum of all user
        // balances can't exceed the max uint256 value.
        unchecked {
            balanceOf[to] += amount;
        }
        emit Transfer(msg.sender, to, amount);
        return true;
    }
    function transferFrom(
        address from,
        address to,
        uint256 amount
    ) public virtual returns (bool) {
        uint256 allowed = allowance[from][msg.sender]; // Saves gas for limited approvals.
        if (allowed != type(uint256).max) allowance[from][msg.sender] = allowed - amount;
        balanceOf[from] -= amount;
        // Cannot overflow because the sum of all user
        // balances can't exceed the max uint256 value.
        unchecked {
            balanceOf[to] += amount;
        }
        emit Transfer(from, to, amount);
        return true;
    }
    /*//////////////////////////////////////////////////////////////
                             EIP-2612 LOGIC
    //////////////////////////////////////////////////////////////*/
    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) public virtual {
        require(deadline >= block.timestamp, "PERMIT_DEADLINE_EXPIRED");
        // Unchecked because the only math done is incrementing
        // the owner's nonce which cannot realistically overflow.
        unchecked {
            address recoveredAddress = ecrecover(
                keccak256(
                    abi.encodePacked(
                        "\x19\x01",
                        DOMAIN_SEPARATOR(),
                        keccak256(
                            abi.encode(
                                keccak256(
                                    "Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)"
                                ),
                                owner,
                                spender,
                                value,
                                nonces[owner]++,
                                deadline
                            )
                        )
                    )
                ),
                v,
                r,
                s
            );
            require(recoveredAddress != address(0) && recoveredAddress == owner, "INVALID_SIGNER");
            allowance[recoveredAddress][spender] = value;
        }
        emit Approval(owner, spender, value);
    }
    function DOMAIN_SEPARATOR() public view virtual returns (bytes32) {
        return block.chainid == INITIAL_CHAIN_ID ? INITIAL_DOMAIN_SEPARATOR : computeDomainSeparator();
    }
    function computeDomainSeparator() internal view virtual returns (bytes32) {
        return
            keccak256(
                abi.encode(
                    keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)"),
                    keccak256(bytes(name)),
                    keccak256("1"),
                    block.chainid,
                    address(this)
                )
            );
    }
    /*//////////////////////////////////////////////////////////////
                        INTERNAL MINT/BURN LOGIC
    //////////////////////////////////////////////////////////////*/
    function _mint(address to, uint256 amount) internal virtual {
        totalSupply += amount;
        // Cannot overflow because the sum of all user
        // balances can't exceed the max uint256 value.
        unchecked {
            balanceOf[to] += amount;
        }
        emit Transfer(address(0), to, amount);
    }
    function _burn(address from, uint256 amount) internal virtual {
        balanceOf[from] -= amount;
        // Cannot underflow because a user's balance
        // will never be larger than the total supply.
        unchecked {
            totalSupply -= amount;
        }
        emit Transfer(from, address(0), amount);
    }
}

// SPDX-License-Identifier: AGPL-3.0-only
pragma solidity >=0.8.0;
import {ERC20} from "../tokens/ERC20.sol";
import {SafeTransferLib} from "../utils/SafeTransferLib.sol";
import {FixedPointMathLib} from "../utils/FixedPointMathLib.sol";
/// @notice Minimal ERC4626 tokenized Vault implementation.
/// @author Solmate (https://github.com/transmissions11/solmate/blob/main/src/tokens/ERC4626.sol)
abstract contract ERC4626 is ERC20 {
    using SafeTransferLib for ERC20;
    using FixedPointMathLib for uint256;
    /*//////////////////////////////////////////////////////////////
                                 EVENTS
    //////////////////////////////////////////////////////////////*/
    event Deposit(address indexed caller, address indexed owner, uint256 assets, uint256 shares);
    event Withdraw(
        address indexed caller,
        address indexed receiver,
        address indexed owner,
        uint256 assets,
        uint256 shares
    );
    /*//////////////////////////////////////////////////////////////
                               IMMUTABLES
    //////////////////////////////////////////////////////////////*/
    ERC20 public immutable asset;
    constructor(
        ERC20 _asset,
        string memory _name,
        string memory _symbol
    ) ERC20(_name, _symbol, _asset.decimals()) {
        asset = _asset;
    }
    /*//////////////////////////////////////////////////////////////
                        DEPOSIT/WITHDRAWAL LOGIC
    //////////////////////////////////////////////////////////////*/
    function deposit(uint256 assets, address receiver) public virtual returns (uint256 shares) {
        // Check for rounding error since we round down in previewDeposit.
        require((shares = previewDeposit(assets)) != 0, "ZERO_SHARES");
        // Need to transfer before minting or ERC777s could reenter.
        asset.safeTransferFrom(msg.sender, address(this), assets);
        _mint(receiver, shares);
        emit Deposit(msg.sender, receiver, assets, shares);
        afterDeposit(assets, shares);
    }
    function mint(uint256 shares, address receiver) public virtual returns (uint256 assets) {
        assets = previewMint(shares); // No need to check for rounding error, previewMint rounds up.
        // Need to transfer before minting or ERC777s could reenter.
        asset.safeTransferFrom(msg.sender, address(this), assets);
        _mint(receiver, shares);
        emit Deposit(msg.sender, receiver, assets, shares);
        afterDeposit(assets, shares);
    }
    function withdraw(
        uint256 assets,
        address receiver,
        address owner
    ) public virtual returns (uint256 shares) {
        shares = previewWithdraw(assets); // No need to check for rounding error, previewWithdraw rounds up.
        if (msg.sender != owner) {
            uint256 allowed = allowance[owner][msg.sender]; // Saves gas for limited approvals.
            if (allowed != type(uint256).max) allowance[owner][msg.sender] = allowed - shares;
        }
        beforeWithdraw(assets, shares);
        _burn(owner, shares);
        emit Withdraw(msg.sender, receiver, owner, assets, shares);
        asset.safeTransfer(receiver, assets);
    }
    function redeem(
        uint256 shares,
        address receiver,
        address owner
    ) public virtual returns (uint256 assets) {
        if (msg.sender != owner) {
            uint256 allowed = allowance[owner][msg.sender]; // Saves gas for limited approvals.
            if (allowed != type(uint256).max) allowance[owner][msg.sender] = allowed - shares;
        }
        // Check for rounding error since we round down in previewRedeem.
        require((assets = previewRedeem(shares)) != 0, "ZERO_ASSETS");
        beforeWithdraw(assets, shares);
        _burn(owner, shares);
        emit Withdraw(msg.sender, receiver, owner, assets, shares);
        asset.safeTransfer(receiver, assets);
    }
    /*//////////////////////////////////////////////////////////////
                            ACCOUNTING LOGIC
    //////////////////////////////////////////////////////////////*/
    function totalAssets() public view virtual returns (uint256);
    function convertToShares(uint256 assets) public view virtual returns (uint256) {
        uint256 supply = totalSupply; // Saves an extra SLOAD if totalSupply is non-zero.
        return supply == 0 ? assets : assets.mulDivDown(supply, totalAssets());
    }
    function convertToAssets(uint256 shares) public view virtual returns (uint256) {
        uint256 supply = totalSupply; // Saves an extra SLOAD if totalSupply is non-zero.
        return supply == 0 ? shares : shares.mulDivDown(totalAssets(), supply);
    }
    function previewDeposit(uint256 assets) public view virtual returns (uint256) {
        return convertToShares(assets);
    }
    function previewMint(uint256 shares) public view virtual returns (uint256) {
        uint256 supply = totalSupply; // Saves an extra SLOAD if totalSupply is non-zero.
        return supply == 0 ? shares : shares.mulDivUp(totalAssets(), supply);
    }
    function previewWithdraw(uint256 assets) public view virtual returns (uint256) {
        uint256 supply = totalSupply; // Saves an extra SLOAD if totalSupply is non-zero.
        return supply == 0 ? assets : assets.mulDivUp(supply, totalAssets());
    }
    function previewRedeem(uint256 shares) public view virtual returns (uint256) {
        return convertToAssets(shares);
    }
    /*//////////////////////////////////////////////////////////////
                     DEPOSIT/WITHDRAWAL LIMIT LOGIC
    //////////////////////////////////////////////////////////////*/
    function maxDeposit(address) public view virtual returns (uint256) {
        return type(uint256).max;
    }
    function maxMint(address) public view virtual returns (uint256) {
        return type(uint256).max;
    }
    function maxWithdraw(address owner) public view virtual returns (uint256) {
        return convertToAssets(balanceOf[owner]);
    }
    function maxRedeem(address owner) public view virtual returns (uint256) {
        return balanceOf[owner];
    }
    /*//////////////////////////////////////////////////////////////
                          INTERNAL HOOKS LOGIC
    //////////////////////////////////////////////////////////////*/
    function beforeWithdraw(uint256 assets, uint256 shares) internal virtual {}
    function afterDeposit(uint256 assets, uint256 shares) internal virtual {}
}

// SPDX-License-Identifier: AGPL-3.0-only
pragma solidity >=0.8.0;
/// @notice Arithmetic library with operations for fixed-point numbers.
/// @author Solmate (https://github.com/transmissions11/solmate/blob/main/src/utils/FixedPointMathLib.sol)
/// @author Inspired by USM (https://github.com/usmfum/USM/blob/master/contracts/WadMath.sol)
library FixedPointMathLib {
    /*//////////////////////////////////////////////////////////////
                    SIMPLIFIED FIXED POINT OPERATIONS
    //////////////////////////////////////////////////////////////*/
    uint256 internal constant MAX_UINT256 = 2**256 - 1;
    uint256 internal constant WAD = 1e18; // The scalar of ETH and most ERC20s.
    function mulWadDown(uint256 x, uint256 y) internal pure returns (uint256) {
        return mulDivDown(x, y, WAD); // Equivalent to (x * y) / WAD rounded down.
    }
    function mulWadUp(uint256 x, uint256 y) internal pure returns (uint256) {
        return mulDivUp(x, y, WAD); // Equivalent to (x * y) / WAD rounded up.
    }
    function divWadDown(uint256 x, uint256 y) internal pure returns (uint256) {
        return mulDivDown(x, WAD, y); // Equivalent to (x * WAD) / y rounded down.
    }
    function divWadUp(uint256 x, uint256 y) internal pure returns (uint256) {
        return mulDivUp(x, WAD, y); // Equivalent to (x * WAD) / y rounded up.
    }
    /*//////////////////////////////////////////////////////////////
                    LOW LEVEL FIXED POINT OPERATIONS
    //////////////////////////////////////////////////////////////*/
    function mulDivDown(
        uint256 x,
        uint256 y,
        uint256 denominator
    ) internal pure returns (uint256 z) {
        /// @solidity memory-safe-assembly
        assembly {
            // Equivalent to require(denominator != 0 && (y == 0 || x <= type(uint256).max / y))
            if iszero(mul(denominator, iszero(mul(y, gt(x, div(MAX_UINT256, y)))))) {
                revert(0, 0)
            }
            // Divide x * y by the denominator.
            z := div(mul(x, y), denominator)
        }
    }
    function mulDivUp(
        uint256 x,
        uint256 y,
        uint256 denominator
    ) internal pure returns (uint256 z) {
        /// @solidity memory-safe-assembly
        assembly {
            // Equivalent to require(denominator != 0 && (y == 0 || x <= type(uint256).max / y))
            if iszero(mul(denominator, iszero(mul(y, gt(x, div(MAX_UINT256, y)))))) {
                revert(0, 0)
            }
            // If x * y modulo the denominator is strictly greater than 0,
            // 1 is added to round up the division of x * y by the denominator.
            z := add(gt(mod(mul(x, y), denominator), 0), div(mul(x, y), denominator))
        }
    }
    function rpow(
        uint256 x,
        uint256 n,
        uint256 scalar
    ) internal pure returns (uint256 z) {
        /// @solidity memory-safe-assembly
        assembly {
            switch x
            case 0 {
                switch n
                case 0 {
                    // 0 ** 0 = 1
                    z := scalar
                }
                default {
                    // 0 ** n = 0
                    z := 0
                }
            }
            default {
                switch mod(n, 2)
                case 0 {
                    // If n is even, store scalar in z for now.
                    z := scalar
                }
                default {
                    // If n is odd, store x in z for now.
                    z := x
                }
                // Shifting right by 1 is like dividing by 2.
                let half := shr(1, scalar)
                for {
                    // Shift n right by 1 before looping to halve it.
                    n := shr(1, n)
                } n {
                    // Shift n right by 1 each iteration to halve it.
                    n := shr(1, n)
                } {
                    // Revert immediately if x ** 2 would overflow.
                    // Equivalent to iszero(eq(div(xx, x), x)) here.
                    if shr(128, x) {
                        revert(0, 0)
                    }
                    // Store x squared.
                    let xx := mul(x, x)
                    // Round to the nearest number.
                    let xxRound := add(xx, half)
                    // Revert if xx + half overflowed.
                    if lt(xxRound, xx) {
                        revert(0, 0)
                    }
                    // Set x to scaled xxRound.
                    x := div(xxRound, scalar)
                    // If n is even:
                    if mod(n, 2) {
                        // Compute z * x.
                        let zx := mul(z, x)
                        // If z * x overflowed:
                        if iszero(eq(div(zx, x), z)) {
                            // Revert if x is non-zero.
                            if iszero(iszero(x)) {
                                revert(0, 0)
                            }
                        }
                        // Round to the nearest number.
                        let zxRound := add(zx, half)
                        // Revert if zx + half overflowed.
                        if lt(zxRound, zx) {
                            revert(0, 0)
                        }
                        // Return properly scaled zxRound.
                        z := div(zxRound, scalar)
                    }
                }
            }
        }
    }
    /*//////////////////////////////////////////////////////////////
                        GENERAL NUMBER UTILITIES
    //////////////////////////////////////////////////////////////*/
    function sqrt(uint256 x) internal pure returns (uint256 z) {
        /// @solidity memory-safe-assembly
        assembly {
            let y := x // We start y at x, which will help us make our initial estimate.
            z := 181 // The "correct" value is 1, but this saves a multiplication later.
            // This segment is to get a reasonable initial estimate for the Babylonian method. With a bad
            // start, the correct # of bits increases ~linearly each iteration instead of ~quadratically.
            // We check y >= 2^(k + 8) but shift right by k bits
            // each branch to ensure that if x >= 256, then y >= 256.
            if iszero(lt(y, 0x10000000000000000000000000000000000)) {
                y := shr(128, y)
                z := shl(64, z)
            }
            if iszero(lt(y, 0x1000000000000000000)) {
                y := shr(64, y)
                z := shl(32, z)
            }
            if iszero(lt(y, 0x10000000000)) {
                y := shr(32, y)
                z := shl(16, z)
            }
            if iszero(lt(y, 0x1000000)) {
                y := shr(16, y)
                z := shl(8, z)
            }
            // Goal was to get z*z*y within a small factor of x. More iterations could
            // get y in a tighter range. Currently, we will have y in [256, 256*2^16).
            // We ensured y >= 256 so that the relative difference between y and y+1 is small.
            // That's not possible if x < 256 but we can just verify those cases exhaustively.
            // Now, z*z*y <= x < z*z*(y+1), and y <= 2^(16+8), and either y >= 256, or x < 256.
            // Correctness can be checked exhaustively for x < 256, so we assume y >= 256.
            // Then z*sqrt(y) is within sqrt(257)/sqrt(256) of sqrt(x), or about 20bps.
            // For s in the range [1/256, 256], the estimate f(s) = (181/1024) * (s+1) is in the range
            // (1/2.84 * sqrt(s), 2.84 * sqrt(s)), with largest error when s = 1 and when s = 256 or 1/256.
            // Since y is in [256, 256*2^16), let a = y/65536, so that a is in [1/256, 256). Then we can estimate
            // sqrt(y) using sqrt(65536) * 181/1024 * (a + 1) = 181/4 * (y + 65536)/65536 = 181 * (y + 65536)/2^18.
            // There is no overflow risk here since y < 2^136 after the first branch above.
            z := shr(18, mul(z, add(y, 65536))) // A mul() is saved from starting z at 181.
            // Given the worst case multiplicative error of 2.84 above, 7 iterations should be enough.
            z := shr(1, add(z, div(x, z)))
            z := shr(1, add(z, div(x, z)))
            z := shr(1, add(z, div(x, z)))
            z := shr(1, add(z, div(x, z)))
            z := shr(1, add(z, div(x, z)))
            z := shr(1, add(z, div(x, z)))
            z := shr(1, add(z, div(x, z)))
            // If x+1 is a perfect square, the Babylonian method cycles between
            // floor(sqrt(x)) and ceil(sqrt(x)). This statement ensures we return floor.
            // See: https://en.wikipedia.org/wiki/Integer_square_root#Using_only_integer_division
            // Since the ceil is rare, we save gas on the assignment and repeat division in the rare case.
            // If you don't care whether the floor or ceil square root is returned, you can remove this statement.
            z := sub(z, lt(div(x, z), z))
        }
    }
    function unsafeMod(uint256 x, uint256 y) internal pure returns (uint256 z) {
        /// @solidity memory-safe-assembly
        assembly {
            // Mod x by y. Note this will return
            // 0 instead of reverting if y is zero.
            z := mod(x, y)
        }
    }
    function unsafeDiv(uint256 x, uint256 y) internal pure returns (uint256 r) {
        /// @solidity memory-safe-assembly
        assembly {
            // Divide x by y. Note this will return
            // 0 instead of reverting if y is zero.
            r := div(x, y)
        }
    }
    function unsafeDivUp(uint256 x, uint256 y) internal pure returns (uint256 z) {
        /// @solidity memory-safe-assembly
        assembly {
            // Add 1 to x * y if x % y > 0. Note this will
            // return 0 instead of reverting if y is zero.
            z := add(gt(mod(x, y), 0), div(x, y))
        }
    }
}

// SPDX-License-Identifier: AGPL-3.0-only
pragma solidity >=0.8.0;
import {ERC20} from "../tokens/ERC20.sol";
/// @notice Safe ETH and ERC20 transfer library that gracefully handles missing return values.
/// @author Solmate (https://github.com/transmissions11/solmate/blob/main/src/utils/SafeTransferLib.sol)
/// @dev Use with caution! Some functions in this library knowingly create dirty bits at the destination of the free memory pointer.
/// @dev Note that none of the functions in this library check that a token has code at all! That responsibility is delegated to the caller.
library SafeTransferLib {
    /*//////////////////////////////////////////////////////////////
                             ETH OPERATIONS
    //////////////////////////////////////////////////////////////*/
    function safeTransferETH(address to, uint256 amount) internal {
        bool success;
        /// @solidity memory-safe-assembly
        assembly {
            // Transfer the ETH and store if it succeeded or not.
            success := call(gas(), to, amount, 0, 0, 0, 0)
        }
        require(success, "ETH_TRANSFER_FAILED");
    }
    /*//////////////////////////////////////////////////////////////
                            ERC20 OPERATIONS
    //////////////////////////////////////////////////////////////*/
    function safeTransferFrom(
        ERC20 token,
        address from,
        address to,
        uint256 amount
    ) internal {
        bool success;
        /// @solidity memory-safe-assembly
        assembly {
            // Get a pointer to some free memory.
            let freeMemoryPointer := mload(0x40)
            // Write the abi-encoded calldata into memory, beginning with the function selector.
            mstore(freeMemoryPointer, 0x23b872dd00000000000000000000000000000000000000000000000000000000)
            mstore(add(freeMemoryPointer, 4), and(from, 0xffffffffffffffffffffffffffffffffffffffff)) // Append and mask the "from" argument.
            mstore(add(freeMemoryPointer, 36), and(to, 0xffffffffffffffffffffffffffffffffffffffff)) // Append and mask the "to" argument.
            mstore(add(freeMemoryPointer, 68), amount) // Append the "amount" argument. Masking not required as it's a full 32 byte type.
            success := and(
                // Set success to whether the call reverted, if not we check it either
                // returned exactly 1 (can't just be non-zero data), or had no return data.
                or(and(eq(mload(0), 1), gt(returndatasize(), 31)), iszero(returndatasize())),
                // We use 100 because the length of our calldata totals up like so: 4 + 32 * 3.
                // We use 0 and 32 to copy up to 32 bytes of return data into the scratch space.
                // Counterintuitively, this call must be positioned second to the or() call in the
                // surrounding and() call or else returndatasize() will be zero during the computation.
                call(gas(), token, 0, freeMemoryPointer, 100, 0, 32)
            )
        }
        require(success, "TRANSFER_FROM_FAILED");
    }
    function safeTransfer(
        ERC20 token,
        address to,
        uint256 amount
    ) internal {
        bool success;
        /// @solidity memory-safe-assembly
        assembly {
            // Get a pointer to some free memory.
            let freeMemoryPointer := mload(0x40)
            // Write the abi-encoded calldata into memory, beginning with the function selector.
            mstore(freeMemoryPointer, 0xa9059cbb00000000000000000000000000000000000000000000000000000000)
            mstore(add(freeMemoryPointer, 4), and(to, 0xffffffffffffffffffffffffffffffffffffffff)) // Append and mask the "to" argument.
            mstore(add(freeMemoryPointer, 36), amount) // Append the "amount" argument. Masking not required as it's a full 32 byte type.
            success := and(
                // Set success to whether the call reverted, if not we check it either
                // returned exactly 1 (can't just be non-zero data), or had no return data.
                or(and(eq(mload(0), 1), gt(returndatasize(), 31)), iszero(returndatasize())),
                // We use 68 because the length of our calldata totals up like so: 4 + 32 * 2.
                // We use 0 and 32 to copy up to 32 bytes of return data into the scratch space.
                // Counterintuitively, this call must be positioned second to the or() call in the
                // surrounding and() call or else returndatasize() will be zero during the computation.
                call(gas(), token, 0, freeMemoryPointer, 68, 0, 32)
            )
        }
        require(success, "TRANSFER_FAILED");
    }
    function safeApprove(
        ERC20 token,
        address to,
        uint256 amount
    ) internal {
        bool success;
        /// @solidity memory-safe-assembly
        assembly {
            // Get a pointer to some free memory.
            let freeMemoryPointer := mload(0x40)
            // Write the abi-encoded calldata into memory, beginning with the function selector.
            mstore(freeMemoryPointer, 0x095ea7b300000000000000000000000000000000000000000000000000000000)
            mstore(add(freeMemoryPointer, 4), and(to, 0xffffffffffffffffffffffffffffffffffffffff)) // Append and mask the "to" argument.
            mstore(add(freeMemoryPointer, 36), amount) // Append the "amount" argument. Masking not required as it's a full 32 byte type.
            success := and(
                // Set success to whether the call reverted, if not we check it either
                // returned exactly 1 (can't just be non-zero data), or had no return data.
                or(and(eq(mload(0), 1), gt(returndatasize(), 31)), iszero(returndatasize())),
                // We use 68 because the length of our calldata totals up like so: 4 + 32 * 2.
                // We use 0 and 32 to copy up to 32 bytes of return data into the scratch space.
                // Counterintuitively, this call must be positioned second to the or() call in the
                // surrounding and() call or else returndatasize() will be zero during the computation.
                call(gas(), token, 0, freeMemoryPointer, 68, 0, 32)
            )
        }
        require(success, "APPROVE_FAILED");
    }
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.19;
interface ICYDyson {
    // Error declarations can be included if they will be used externally.
    error VaultNotWhitelisted();
    // Function signatures
    function mint(address _to, uint256 _amount) external;
    function burn(address _from, uint256 _amount) external;
    function addVault(address _vault) external;
    function removeVault(address _vault) external;
    // Admin role identifier function for external access
    function ADMIN_ROLE() external view returns (bytes32);
}

pragma solidity >=0.8.0;
// SPDX-License-Identifier: MIT
interface IERC20 {
    event Approval(address indexed owner, address indexed spender, uint value);
    event Transfer(address indexed from, address indexed to, uint value);
    function name() external view returns (string memory);
    function symbol() external view returns (string memory);
    function decimals() external view returns (uint8);
    function totalSupply() external view returns (uint);
    function balanceOf(address owner) external view returns (uint);
    function allowance(
        address owner,
        address spender
    ) external view returns (uint);
    function approve(address spender, uint value) external returns (bool);
    function transfer(address to, uint value) external returns (bool);
    function transferFrom(
        address from,
        address to,
        uint value
    ) external returns (bool);
}

pragma solidity >=0.8.0;
// SPDX-License-Identifier: MIT
interface IFarm {
    event TransferOwnership(address newOwner);
    event RateUpdated(address indexed poolId, uint rewardRate, uint weight);
    event GrantSP(
        address indexed user,
        address indexed poolId,
        uint amountIn,
        uint amountOut
    );
    event Swap(
        address indexed user,
        address indexed parent,
        uint amountIn,
        uint amountOut
    );
    struct Pool {
        uint weight;
        uint rewardRate;
        uint lastUpdateTime;
        uint lastReserve;
        address gauge;
    }
    function agency() external view returns (address);
    function gov() external view returns (address);
    function owner() external view returns (address);
    function globalPool() external view returns (address);
    function pools(
        address poolId
    )
        external
        view
        returns (
            uint weight,
            uint rewardRate,
            uint lastUpdateTime,
            uint lastReserve,
            address gauge
        );
    function balanceOf(address user) external view returns (uint);
    function cooldown(address user) external view returns (uint);
    function transferOwnership(address _owner) external;
    function rescueERC20(
        address tokenAddress,
        address to,
        uint256 amount
    ) external;
    function setPool(address poolId, address gauge) external;
    function setPoolRewardRate(
        address poolId,
        uint rewardRate,
        uint weight
    ) external;
    function setGlobalRewardRate(uint rewardRate, uint weight) external;
    function getCurrentPoolReserve(
        address poolId
    ) external view returns (uint reserve);
    function getCurrentGlobalReserve() external view returns (uint reserve);
    function grantSP(address to, uint amount) external;
    function swap(address user) external returns (uint amountOut);
}

pragma solidity >=0.8.0;
// SPDX-License-Identifier: MIT
interface IPair {
    event Swap(
        address indexed sender,
        bool indexed isSwap0,
        uint amountIn,
        uint amountOut,
        address indexed to
    );
    event FeeCollected(uint token0Amt, uint token1Amt);
    event Deposit(
        address indexed user,
        bool indexed isToken0,
        uint index,
        uint amountIn,
        uint token0Amt,
        uint token1Amt,
        uint due
    );
    event Withdraw(
        address indexed user,
        bool indexed isToken0,
        uint index,
        uint amountOut
    );
    event ApprovalForAll(
        address indexed owner,
        address indexed operator,
        bool approved
    );
    struct Note {
        uint token0Amt;
        uint token1Amt;
        uint due;
    }
    function token0() external view returns (address);
    function token1() external view returns (address);
    function getFeeRatio()
        external
        view
        returns (uint64 _feeRatio0, uint64 _feeRatio1);
    function getReserves() external view returns (uint reserve0, uint reserve1);
    function deposit0(
        address to,
        uint input,
        uint minOutput,
        uint time
    ) external returns (uint output);
    function deposit1(
        address to,
        uint input,
        uint minOutput,
        uint time
    ) external returns (uint output);
    function swap0in(
        address to,
        uint input,
        uint minOutput
    ) external returns (uint output);
    function swap1in(
        address to,
        uint input,
        uint minOutput
    ) external returns (uint output);
    function withdraw(
        uint index,
        address to
    ) external returns (uint token0Amt, uint token1Amt);
    function halfLife() external view returns (uint64);
    function calcNewFeeRatio(
        uint64 _oldFeeRatio,
        uint _elapsedTime
    ) external view returns (uint64 _newFeeRatio);
    function feeTo() external view returns (address);
    function initialize(address _token0, address _token1) external;
    function collectFee() external;
    function DOMAIN_SEPARATOR() external view returns (bytes32);
    function WITHDRAW_TYPEHASH() external pure returns (bytes32);
    function factory() external view returns (address);
    function farm() external view returns (address);
    function basis() external view returns (uint);
    function noteCount(address user) external view returns (uint);
    function notes(
        address user,
        uint index
    ) external view returns (Note memory);
    function getPremium(uint time) external view returns (uint premium);
    function setBasis(uint _basis) external;
    function setHalfLife(uint64 _halfLife) external;
    function setFarm(address _farm) external;
    function setFeeTo(address _feeTo) external;
    function rescueERC20(
        address tokenAddress,
        address to,
        uint256 amount
    ) external;
    function setApprovalForAllWithSig(
        address owner,
        address operator,
        bool approved,
        uint deadline,
        bytes calldata sig
    ) external;
    function setApprovalForAll(address operator, bool approved) external;
    function operatorApprovals(
        address owner,
        address operator
    ) external view returns (bool);
    function withdrawFrom(
        address from,
        uint index,
        address to
    ) external returns (uint token0Amts, uint token1Amts);
}

pragma solidity 0.8.19;
// SPDX-License-Identifier: AGPL-2.0
//https://github.com/Gaussian-Process/solidity-sqrt/blob/main/src/FixedPointMathLib.sol
library SqrtMath {
    function sqrt(uint256 x) internal pure returns (uint256 z) {
        assembly {
            // This segment is to get a reasonable initial estimate for the Babylonian method.
            // If the initial estimate is bad, the number of correct bits increases ~linearly
            // each iteration instead of ~quadratically.
            // The idea is to get z*z*y within a small factor of x.
            // More iterations here gets y in a tighter range. Currently, we will have
            // y in [256, 256*2^16). We ensure y>= 256 so that the relative difference
            // between y and y+1 is small. If x < 256 this is not possible, but those cases
            // are easy enough to verify exhaustively.
            z := 181 // The 'correct' value is 1, but this saves a multiply later
            let y := x
            // Note that we check y>= 2^(k + 8) but shift right by k bits each branch,
            // this is to ensure that if x >= 256, then y >= 256.
            if iszero(lt(y, 0x10000000000000000000000000000000000)) {
                y := shr(128, y)
                z := shl(64, z)
            }
            if iszero(lt(y, 0x1000000000000000000)) {
                y := shr(64, y)
                z := shl(32, z)
            }
            if iszero(lt(y, 0x10000000000)) {
                y := shr(32, y)
                z := shl(16, z)
            }
            if iszero(lt(y, 0x1000000)) {
                y := shr(16, y)
                z := shl(8, z)
            }
            // Now, z*z*y <= x < z*z*(y+1), and y <= 2^(16+8),
            // and either y >= 256, or x < 256.
            // Correctness can be checked exhaustively for x < 256, so we assume y >= 256.
            // Then z*sqrt(y) is within sqrt(257)/sqrt(256) of x, or about 20bps.
            // The estimate sqrt(x) = (181/1024) * (x+1) is off by a factor of ~2.83 both when x=1
            // and when x = 256 or 1/256. In the worst case, this needs seven Babylonian iterations.
            z := shr(18, mul(z, add(y, 65536))) // A multiply is saved from the initial z := 181
            // Run the Babylonian method seven times. This should be enough given initial estimate.
            // Possibly with a quadratic/cubic polynomial above we could get 4-6.
            z := shr(1, add(z, div(x, z)))
            z := shr(1, add(z, div(x, z)))
            z := shr(1, add(z, div(x, z)))
            z := shr(1, add(z, div(x, z)))
            z := shr(1, add(z, div(x, z)))
            z := shr(1, add(z, div(x, z)))
            z := shr(1, add(z, div(x, z)))
            // See https://en.wikipedia.org/wiki/Integer_square_root#Using_only_integer_division.
            // If x+1 is a perfect square, the Babylonian method cycles between
            // floor(sqrt(x)) and ceil(sqrt(x)). This check ensures we return floor.
            // The solmate implementation assigns zRoundDown := div(x, z) first, but
            // since this case is rare, we choose to save gas on the assignment and
            // repeat division in the rare case.
            // If you don't care whether floor or ceil is returned, you can skip this.
            if lt(div(x, z), z) {
                z := div(x, z)
            }
        }
    }
}

pragma solidity 0.8.19;
// SPDX-License-Identifier: AGPL-2.0
library TransferHelper {
    function safeApprove(address token, address to, uint value) internal {
        // bytes4(keccak256(bytes('approve(address,uint256)')));
        (bool success, bytes memory data) = token.call(
            abi.encodeWithSelector(0x095ea7b3, to, value)
        );
        require(
            success && (data.length == 0 || abi.decode(data, (bool))),
            "transferHelper: approve failed"
        );
    }
    function safeTransfer(address token, address to, uint value) internal {
        // bytes4(keccak256(bytes('transfer(address,uint256)')));
        (bool success, bytes memory data) = token.call(
            abi.encodeWithSelector(0xa9059cbb, to, value)
        );
        require(
            success && (data.length == 0 || abi.decode(data, (bool))),
            "transferHelper: transfer failed"
        );
    }
    function safeTransferFrom(
        address token,
        address from,
        address to,
        uint value
    ) internal {
        // bytes4(keccak256(bytes('transferFrom(address,address,uint256)')));
        (bool success, bytes memory data) = token.call(
            abi.encodeWithSelector(0x23b872dd, from, to, value)
        );
        require(
            success && (data.length == 0 || abi.decode(data, (bool))),
            "transferHelper: transferFrom failed"
        );
    }
    function safeTransferETH(address to, uint value) internal {
        (bool success, ) = to.call{value: value}(new bytes(0));
        require(success, "transferHelper: ETH transfer failed");
    }
}

[{"type":"constructor","stateMutability":"nonpayable","inputs":[{"type":"address","name":"_owner","internalType":"address"},{"type":"address","name":"_asset","internalType":"address"},{"type":"uint256","name":"_maxVaultCapacity","internalType":"uint256"},{"type":"string","name":"_name","internalType":"string"},{"type":"string","name":"_symbol","internalType":"string"},{"type":"address","name":"_cyDysonAddress","internalType":"contract ICYDyson"},{"type":"address","name":"_treasury","internalType":"address"}]},{"type":"error","name":"BorrowExceedsCredit","inputs":[{"type":"uint256","name":"_amount","internalType":"uint256"},{"type":"uint256","name":"_credit","internalType":"uint256"}]},{"type":"error","name":"BorrowLessThanZero","inputs":[{"type":"uint256","name":"_amount","internalType":"uint256"}]},{"type":"error","name":"DepositLessThanZero","inputs":[{"type":"uint256","name":"_assets","internalType":"uint256"}]},{"type":"error","name":"DepositLimitReached","inputs":[]},{"type":"error","name":"InsufficientSyntheticAssets","inputs":[{"type":"uint256","name":"_amount","internalType":"uint256"},{"type":"uint256","name":"_balance","internalType":"uint256"}]},{"type":"error","name":"NoDepositedAssets","inputs":[{"type":"address","name":"_user","internalType":"address"}]},{"type":"error","name":"NotADepositor","inputs":[{"type":"address","name":"_caller","internalType":"address"}]},{"type":"error","name":"ReentrancyGuardReentrantCall","inputs":[]},{"type":"error","name":"YieldRedistributedRecently","inputs":[]},{"type":"error","name":"ZeroAddress","inputs":[]},{"type":"event","name":"Approval","inputs":[{"type":"address","name":"owner","internalType":"address","indexed":true},{"type":"address","name":"spender","internalType":"address","indexed":true},{"type":"uint256","name":"amount","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"Borrowed","inputs":[{"type":"address","name":"user","internalType":"address","indexed":true},{"type":"uint256","name":"amount","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"DYSONReceived","inputs":[{"type":"uint256","name":"ownerAmount","internalType":"uint256","indexed":false},{"type":"uint256","name":"poolAmount","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"Deposit","inputs":[],"anonymous":false},{"type":"event","name":"Deposit","inputs":[{"type":"address","name":"caller","internalType":"address","indexed":true},{"type":"address","name":"owner","internalType":"address","indexed":true},{"type":"uint256","name":"assets","internalType":"uint256","indexed":false},{"type":"uint256","name":"shares","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"Deposited","inputs":[{"type":"address","name":"pair","internalType":"address","indexed":true},{"type":"address","name":"user","internalType":"address","indexed":true},{"type":"uint256","name":"noteId","internalType":"uint256","indexed":false},{"type":"uint256","name":"positionId","internalType":"uint256","indexed":false},{"type":"uint256","name":"spAmount","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"Transfer","inputs":[{"type":"address","name":"from","internalType":"address","indexed":true},{"type":"address","name":"to","internalType":"address","indexed":true},{"type":"uint256","name":"amount","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"Withdraw","inputs":[{"type":"address","name":"caller","internalType":"address","indexed":true},{"type":"address","name":"receiver","internalType":"address","indexed":true},{"type":"address","name":"owner","internalType":"address","indexed":true},{"type":"uint256","name":"assets","internalType":"uint256","indexed":false},{"type":"uint256","name":"shares","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"YieldRedistributed","inputs":[{"type":"address","name":"user","internalType":"address","indexed":true},{"type":"uint256","name":"paydown","internalType":"uint256","indexed":false},{"type":"uint256","name":"creditReward","internalType":"uint256","indexed":false},{"type":"uint256","name":"protocolFee","internalType":"uint256","indexed":false},{"type":"uint256","name":"spBefore","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"BPS","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"CREDIT_REWARD_RATIO","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"contract ICYDyson"}],"name":"CYDYSON_ADDRESS","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"DEBT_PAYDOWN_RATIO","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"bytes32","name":"","internalType":"bytes32"}],"name":"DOMAIN_SEPARATOR","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"address"}],"name":"DYSON","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"address"}],"name":"DYSON_USDC_POOL","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"address"}],"name":"FARM","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"MAX_LTV","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"MAX_VAULT_CAPACITY","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"PROTOCOL_REWARD_RATIO","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"address"}],"name":"TREASURY_ADDRESS","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"address"}],"name":"USDC","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"adminFeeRatio","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"allowance","inputs":[{"type":"address","name":"","internalType":"address"},{"type":"address","name":"","internalType":"address"}]},{"type":"function","stateMutability":"nonpayable","outputs":[{"type":"bool","name":"","internalType":"bool"}],"name":"approve","inputs":[{"type":"address","name":"spender","internalType":"address"},{"type":"uint256","name":"amount","internalType":"uint256"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"contract ERC20"}],"name":"asset","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"balanceOf","inputs":[{"type":"address","name":"","internalType":"address"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"borrow","inputs":[{"type":"uint256","name":"_amount","internalType":"uint256"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"convertToAssets","inputs":[{"type":"uint256","name":"shares","internalType":"uint256"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"convertToShares","inputs":[{"type":"uint256","name":"assets","internalType":"uint256"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint8","name":"","internalType":"uint8"}],"name":"decimals","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[{"type":"uint256","name":"shares","internalType":"uint256"}],"name":"deposit","inputs":[{"type":"uint256","name":"assets","internalType":"uint256"},{"type":"address","name":"receiver","internalType":"address"}]},{"type":"function","stateMutability":"nonpayable","outputs":[{"type":"uint256","name":"output","internalType":"uint256"}],"name":"depositToVault","inputs":[{"type":"address","name":"tokenIn","internalType":"address"},{"type":"address","name":"tokenOut","internalType":"address"},{"type":"uint256","name":"input","internalType":"uint256"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"dysonPool","inputs":[]},{"type":"function","stateMutability":"pure","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"getCreditRewardRatio","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"_cyDysonAddress","internalType":"address"}],"name":"getCyDysonAddress","inputs":[]},{"type":"function","stateMutability":"pure","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"getDebtPaydownRatio","inputs":[]},{"type":"function","stateMutability":"pure","outputs":[{"type":"uint256","name":"_LTV","internalType":"uint256"}],"name":"getLTV","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"_maxVaultCapacity","internalType":"uint256"}],"name":"getMaxVaultCapacity","inputs":[]},{"type":"function","stateMutability":"pure","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"getProtocolRewardRatio","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"getTotalBorrowed","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"getTotalCredit","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"_treasuryAddress","internalType":"address"}],"name":"getTreasuryAddress","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"tuple","name":"","internalType":"struct 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