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/**
 *Submitted for verification at Etherscan.io on 2024-12-09
*/

// Sources flattened with hardhat v2.9.9 https://hardhat.org

// File src/interfaces/ITokenAdapter.sol

pragma solidity >=0.5.0;

/// @title  ITokenAdapter
/// @author Alchemix Finance
interface ITokenAdapter {
    /// @notice Gets the current version.
    ///
    /// @return The version.
    function version() external view returns (string memory);

    /// @notice Gets the address of the yield token that this adapter supports.
    ///
    /// @return The address of the yield token.
    function token() external view returns (address);

    /// @notice Gets the address of the underlying token that the yield token wraps.
    ///
    /// @return The address of the underlying token.
    function underlyingToken() external view returns (address);

    /// @notice Gets the number of underlying tokens that a single whole yield token is redeemable
    ///         for.
    ///
    /// @return The price.
    function price() external view returns (uint256);

    /// @notice Wraps `amount` underlying tokens into the yield token.
    ///
    /// @param amount    The amount of the underlying token to wrap.
    /// @param recipient The address which will receive the yield tokens.
    ///
    /// @return amountYieldTokens The amount of yield tokens minted to `recipient`.
    function wrap(uint256 amount, address recipient)
        external
        returns (uint256 amountYieldTokens);

    /// @notice Unwraps `amount` yield tokens into the underlying token.
    ///
    /// @param amount    The amount of yield-tokens to redeem.
    /// @param recipient The recipient of the resulting underlying-tokens.
    ///
    /// @return amountUnderlyingTokens The amount of underlying tokens unwrapped to `recipient`.
    function unwrap(uint256 amount, address recipient)
        external
        returns (uint256 amountUnderlyingTokens);
}


// File src/base/ErrorMessages.sol

pragma solidity >=0.8.4;

/// @notice An error used to indicate that an argument passed to a function is illegal or
///         inappropriate.
///
/// @param message The error message.
error IllegalArgument(string message);

/// @notice An error used to indicate that a function has encountered an unrecoverable state.
///
/// @param message The error message.
error IllegalState(string message);

/// @notice An error used to indicate that an operation is unsupported.
///
/// @param message The error message.
error UnsupportedOperation(string message);

/// @notice An error used to indicate that a message sender tried to execute a privileged function.
///
/// @param message The error message.
error Unauthorized(string message);


// File src/base/MutexLock.sol

pragma solidity 0.8.13;

/// @title  Mutex
/// @author Alchemix Finance
///
/// @notice Provides a mutual exclusion lock for implementing contracts.
abstract contract MutexLock {
    enum State {
        RESERVED,
        UNLOCKED,
        LOCKED
    }

    /// @notice The lock state.
    State private _lockState = State.UNLOCKED;

    /// @dev A modifier which acquires the mutex.
    modifier lock() {
        _claimLock();

        _;

        _freeLock();
    }

    /// @dev Gets if the mutex is locked.
    ///
    /// @return if the mutex is locked.
    function _isLocked() internal view returns (bool) {
        return _lockState == State.LOCKED;
    }

    /// @dev Claims the lock. If the lock is already claimed, then this will revert.
    function _claimLock() internal {
        // Check that the lock has not been claimed yet.
        if (_lockState != State.UNLOCKED) {
            revert IllegalState("Lock already claimed");
        }

        // Claim the lock.
        _lockState = State.LOCKED;
    }

    /// @dev Frees the lock.
    function _freeLock() internal {
        _lockState = State.UNLOCKED;
    }
}


// File lib/openzeppelin-contracts/contracts/token/ERC20/IERC20.sol

// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface 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 lib/openzeppelin-contracts/contracts/token/ERC20/extensions/IERC20Metadata.sol

// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)

pragma solidity ^0.8.0;

/**
 * @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 src/interfaces/IERC20Burnable.sol

pragma solidity >=0.5.0;

/// @title  IERC20Burnable
/// @author Alchemix Finance
interface IERC20Burnable is IERC20 {
    /// @notice Burns `amount` tokens from the balance of `msg.sender`.
    ///
    /// @param amount The amount of tokens to burn.
    ///
    /// @return If burning the tokens was successful.
    function burnSelf(uint256 amount) external returns (bool);

    /// @notice Burns `amount` tokens from `owner`'s balance.
    ///
    /// @param owner  The address to burn tokens from.
    /// @param amount The amount of tokens to burn.
    ///
    /// @return If burning the tokens was successful.
    function burn(address owner, uint256 amount) external returns (bool);
}


// File src/interfaces/IERC20Mintable.sol

pragma solidity >=0.5.0;

/// @title  IERC20Mintable
/// @author Alchemix Finance
interface IERC20Mintable is IERC20 {
    /// @notice Mints `amount` tokens to `recipient`.
    ///
    /// @param recipient The address which will receive the minted tokens.
    /// @param amount    The amount of tokens to mint.
    function mint(address recipient, uint256 amount) external;
}


// File src/libraries/TokenUtils.sol

pragma solidity ^0.8.13;




/// @title  TokenUtils
/// @author Alchemix Finance
library TokenUtils {
    /// @notice An error used to indicate that a call to an ERC20 contract failed.
    ///
    /// @param target  The target address.
    /// @param success If the call to the token was a success.
    /// @param data    The resulting data from the call. This is error data when the call was not a success. Otherwise,
    ///                this is malformed data when the call was a success.
    error ERC20CallFailed(address target, bool success, bytes data);

    /// @dev A safe function to get the decimals of an ERC20 token.
    ///
    /// @dev Reverts with a {CallFailed} error if execution of the query fails or returns an unexpected value.
    ///
    /// @param token The target token.
    ///
    /// @return The amount of decimals of the token.
    function expectDecimals(address token) internal view returns (uint8) {
        (bool success, bytes memory data) = token.staticcall(
            abi.encodeWithSelector(IERC20Metadata.decimals.selector)
        );

        if (token.code.length == 0 || !success || data.length < 32) {
            revert ERC20CallFailed(token, success, data);
        }

        return abi.decode(data, (uint8));
    }

    /// @dev Gets the balance of tokens held by an account.
    ///
    /// @dev Reverts with a {CallFailed} error if execution of the query fails or returns an unexpected value.
    ///
    /// @param token   The token to check the balance of.
    /// @param account The address of the token holder.
    ///
    /// @return The balance of the tokens held by an account.
    function safeBalanceOf(address token, address account) internal view returns (uint256) {
        (bool success, bytes memory data) = token.staticcall(
            abi.encodeWithSelector(IERC20.balanceOf.selector, account)
        );

        if (token.code.length == 0 || !success || data.length < 32) {
            revert ERC20CallFailed(token, success, data);
        }

        return abi.decode(data, (uint256));
    }

    /// @dev Transfers tokens to another address.
    ///
    /// @dev Reverts with a {CallFailed} error if execution of the transfer failed or returns an unexpected value.
    ///
    /// @param token     The token to transfer.
    /// @param recipient The address of the recipient.
    /// @param amount    The amount of tokens to transfer.
    function safeTransfer(address token, address recipient, uint256 amount) internal {
        (bool success, bytes memory data) = token.call(
            abi.encodeWithSelector(IERC20.transfer.selector, recipient, amount)
        );

        if (token.code.length == 0 || !success || (data.length != 0 && !abi.decode(data, (bool)))) {
            revert ERC20CallFailed(token, success, data);
        }
    }

    /// @dev Approves tokens for the smart contract.
    ///
    /// @dev Reverts with a {CallFailed} error if execution of the approval fails or returns an unexpected value.
    ///
    /// @param token   The token to approve.
    /// @param spender The contract to spend the tokens.
    /// @param value   The amount of tokens to approve.
    function safeApprove(address token, address spender, uint256 value) internal {
        (bool success, bytes memory data) = token.call(
            abi.encodeWithSelector(IERC20.approve.selector, spender, value)
        );

        if (token.code.length == 0 || !success || (data.length != 0 && !abi.decode(data, (bool)))) {
            revert ERC20CallFailed(token, success, data);
        }
    }

    /// @dev Transfer tokens from one address to another address.
    ///
    /// @dev Reverts with a {CallFailed} error if execution of the transfer fails or returns an unexpected value.
    ///
    /// @param token     The token to transfer.
    /// @param owner     The address of the owner.
    /// @param recipient The address of the recipient.
    /// @param amount    The amount of tokens to transfer.
    function safeTransferFrom(address token, address owner, address recipient, uint256 amount) internal {
        (bool success, bytes memory data) = token.call(
            abi.encodeWithSelector(IERC20.transferFrom.selector, owner, recipient, amount)
        );

        if (token.code.length == 0 || !success || (data.length != 0 && !abi.decode(data, (bool)))) {
            revert ERC20CallFailed(token, success, data);
        }
    }

    /// @dev Mints tokens to an address.
    ///
    /// @dev Reverts with a {CallFailed} error if execution of the mint fails or returns an unexpected value.
    ///
    /// @param token     The token to mint.
    /// @param recipient The address of the recipient.
    /// @param amount    The amount of tokens to mint.
    function safeMint(address token, address recipient, uint256 amount) internal {
        (bool success, bytes memory data) = token.call(
            abi.encodeWithSelector(IERC20Mintable.mint.selector, recipient, amount)
        );

        if (token.code.length == 0 || !success || (data.length != 0 && !abi.decode(data, (bool)))) {
            revert ERC20CallFailed(token, success, data);
        }
    }

    /// @dev Burns tokens.
    ///
    /// Reverts with a `CallFailed` error if execution of the burn fails or returns an unexpected value.
    ///
    /// @param token  The token to burn.
    /// @param amount The amount of tokens to burn.
    function safeBurn(address token, uint256 amount) internal {
        (bool success, bytes memory data) = token.call(
            abi.encodeWithSelector(IERC20Burnable.burnSelf.selector, amount)
        );

        if (token.code.length == 0 || !success || (data.length != 0 && !abi.decode(data, (bool)))) {
            revert ERC20CallFailed(token, success, data);
        }
    }

    /// @dev Burns tokens from its total supply.
    ///
    /// @dev Reverts with a {CallFailed} error if execution of the burn fails or returns an unexpected value.
    ///
    /// @param token  The token to burn.
    /// @param owner  The owner of the tokens.
    /// @param amount The amount of tokens to burn.
    function safeBurnFrom(address token, address owner, uint256 amount) internal {
        (bool success, bytes memory data) = token.call(
            abi.encodeWithSelector(IERC20Burnable.burn.selector, owner, amount)
        );

        if (token.code.length == 0 || !success || (data.length != 0 && !abi.decode(data, (bool)))) {
            revert ERC20CallFailed(token, success, data);
        }
    }
}





// File src/interfaces/external/IWETH9.sol

pragma solidity >=0.5.0;

/// @title IWETH9
interface IWETH9 is IERC20, IERC20Metadata {
  /// @notice Deposits `msg.value` ethereum into the contract and mints `msg.value` tokens.
  function deposit() external payable;

  /// @notice Burns `amount` tokens to retrieve `amount` ethereum from the contract.
  ///
  /// @dev This version of WETH utilizes the `transfer` function which hard codes the amount of gas
  ///      that is allowed to be utilized to be exactly 2300 when receiving ethereum.
  ///
  /// @param amount The amount of tokens to burn.
  function withdraw(uint256 amount) external;
}


// File lib/openzeppelin-contracts/contracts/interfaces/IERC4626.sol

// OpenZeppelin Contracts (last updated v4.7.0) (interfaces/IERC4626.sol)

pragma solidity ^0.8.0;


/**
 * @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 src/interfaces/external/curve/IStableSwapNGPool.sol

pragma solidity >= 0.8.0;

interface IStableSwapNGPool {
function exchange(
        int128 i,
        int128 j,
        uint256 dx,
        uint256 minimumDy,
        address recipient
    ) external payable returns (uint256);
}


// File src/interfaces/external/pirex/IPirexContract.sol

pragma solidity 0.8.13;


interface IPirexContract {
    function deposit(address receiver, bool isCompound) external payable returns (uint256, uint256);
}


// File src/adapters/dinero/apxETHAdapter.sol

pragma solidity ^0.8.13;









contract apxETHAdapter is ITokenAdapter {
	uint256 private constant MAXIMUM_SLIPPAGE = 10000;
	string public constant override version = "1.0.0";

	address public immutable alchemist;
	address public immutable override token; // apxETH token address
	address public immutable pxEthToken; // pxETH token address
	address public immutable override underlyingToken; // WETH address
	IStableSwapNGPool public immutable stableSwapNGPool;
	address public immutable apxETHDepositContract;
	
	constructor(
		address _alchemist,
		address _token,
		address _underlyingToken,
		address _stableSwapNGPool,
		address _pxEthToken,
		address _apxETHDepositContract
	) {
		alchemist = _alchemist;
		token = _token;
		underlyingToken = _underlyingToken;
		stableSwapNGPool = IStableSwapNGPool(_stableSwapNGPool);
		pxEthToken = _pxEthToken;
		apxETHDepositContract = _apxETHDepositContract;
	}

	modifier onlyAlchemist() {
		if (msg.sender != alchemist) {
			revert Unauthorized("Not alchemist");
		}
		_;
	}

	receive() external payable {}

	function price() external view override returns (uint256) {
		return IERC4626(token).convertToAssets(1e18);
	}

	function wrap(uint256 amount, address recipient) external onlyAlchemist returns (uint256) {
		// Transfer the underlying token from the sender to the adapter
		TokenUtils.safeTransferFrom(underlyingToken, msg.sender, address(this), amount);
		// Unwrap WETH to ETH because IPirexContract requires ETH
		IWETH9(underlyingToken).withdraw(amount);
		// Deposit ETH into the apxETH deposit contract
		IPirexContract(apxETHDepositContract).deposit{ value: amount }(address(this), true);
		// Record the yield tokens because IPirexContract only returns amount of pxETH minted but not apxETH shares
		uint256 yieldTokens = TokenUtils.safeBalanceOf(token, address(this));
		// Transfer the yield tokens to the recipient
		TokenUtils.safeTransfer(token, recipient, yieldTokens);
		return yieldTokens;
	}

	function unwrap(uint256 amount, address recipient) external onlyAlchemist returns (uint256 receivedWeth) {
		// Transfer the shares from the Alchemist to the Adapter
		TokenUtils.safeTransferFrom(token, msg.sender, address(this), amount);
		// Approve the token to be transferred to the redeem function
		TokenUtils.safeApprove(token, address(token), amount);
		// Redeem the shares to get pxETH
		uint256 redeem = IERC4626(token).redeem(amount, address(this), address(this));
		// Record the amount of pxETH received
		uint256 redeemedPxEth = IERC20(pxEthToken).balanceOf(address(this));
		// Approve the pxETH to be transferred to the stableSwapNGPool
		TokenUtils.safeApprove(pxEthToken, address(stableSwapNGPool), redeemedPxEth);
		// definition of the swap to be executed
		stableSwapNGPool.exchange(1, 0, redeemedPxEth, 0, address(this));
		// Record the amount of WETH received
		receivedWeth = IERC20(underlyingToken).balanceOf(address(this));
		// Transfer the WETH to the recipient
		TokenUtils.safeTransfer(underlyingToken, recipient, receivedWeth);
		return receivedWeth;
	}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"address","name":"_alchemist","type":"address"},{"internalType":"address","name":"_token","type":"address"},{"internalType":"address","name":"_underlyingToken","type":"address"},{"internalType":"address","name":"_stableSwapNGPool","type":"address"},{"internalType":"address","name":"_pxEthToken","type":"address"},{"internalType":"address","name":"_apxETHDepositContract","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[{"internalType":"address","name":"target","type":"address"},{"internalType":"bool","name":"success","type":"bool"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"ERC20CallFailed","type":"error"},{"inputs":[{"internalType":"string","name":"message","type":"string"}],"name":"Unauthorized","type":"error"},{"inputs":[],"name":"alchemist","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"apxETHDepositContract","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"price","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"pxEthToken","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"stableSwapNGPool","outputs":[{"internalType":"contract IStableSwapNGPool","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"token","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"underlyingToken","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"address","name":"recipient","type":"address"}],"name":"unwrap","outputs":[{"internalType":"uint256","name":"receivedWeth","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"version","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"address","name":"recipient","type":"address"}],"name":"wrap","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]

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000000000000000000000000062bf725dc4cdf947aa79ca2aaccd4f385b13b5c0000000000000000000000009ba021b0a9b958b5e75ce9f6dff97c7ee52cb3e6000000000000000000000000c02aaa39b223fe8d0a0e5c4f27ead9083c756cc2000000000000000000000000c8eb2cf2f792f77af0cd9e203305a585e588179d00000000000000000000000004c154b66cb340f3ae24111cc767e0184ed00cc6000000000000000000000000d664b74274dfeb538d9bac494f3a4760828b02b0

-----Decoded View---------------
Arg [0] : _alchemist (address): 0x062Bf725dC4cDF947aa79Ca2aaCCD4F385b13b5c
Arg [1] : _token (address): 0x9Ba021B0a9b958B5E75cE9f6dff97C7eE52cb3E6
Arg [2] : _underlyingToken (address): 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2
Arg [3] : _stableSwapNGPool (address): 0xC8Eb2Cf2f792F77AF0Cd9e203305a585E588179D
Arg [4] : _pxEthToken (address): 0x04C154b66CB340F3Ae24111CC767e0184Ed00Cc6
Arg [5] : _apxETHDepositContract (address): 0xD664b74274DfEB538d9baC494F3a4760828B02b0

-----Encoded View---------------
6 Constructor Arguments found :
Arg [0] : 000000000000000000000000062bf725dc4cdf947aa79ca2aaccd4f385b13b5c
Arg [1] : 0000000000000000000000009ba021b0a9b958b5e75ce9f6dff97c7ee52cb3e6
Arg [2] : 000000000000000000000000c02aaa39b223fe8d0a0e5c4f27ead9083c756cc2
Arg [3] : 000000000000000000000000c8eb2cf2f792f77af0cd9e203305a585e588179d
Arg [4] : 00000000000000000000000004c154b66cb340f3ae24111cc767e0184ed00cc6
Arg [5] : 000000000000000000000000d664b74274dfeb538d9bac494f3a4760828b02b0

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