creation_sourcecode: {{
    "language": "Solidity",
    "sources": {
      "src/SimpleStakingERC20.sol": {
        "content": "// SPDX-License-Identifier: UNLICENSED\npragma solidity 0.8.23;\n\n// External dependencies\nimport {IERC20} from \"@openzeppelin/contracts/token/ERC20/IERC20.sol\";\nimport {SafeERC20} from \"@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol\";\nimport {ReentrancyGuard} from \"@openzeppelin/contracts/utils/ReentrancyGuard.sol\";\nimport {Ownable, Ownable2Step} from \"@openzeppelin/contracts/access/Ownable2Step.sol\";\n\n// Internal dependencies\nimport {ISimpleStakingERC20} from \"./interfaces/ISimpleStakingERC20.sol\";\n\ncontract SimpleStakingERC20 is Ownable2Step, ReentrancyGuard, ISimpleStakingERC20 {\n    using SafeERC20 for IERC20;\n\n    /*//////////////////////////////////////////////////////////////\n                               VARIABLES\n    //////////////////////////////////////////////////////////////*/\n\n    /// @notice Mapping of supported tokens\n    /// IERC20 address -> bool (true if supported)\n    mapping(IERC20 => Supported) public supportedTokens;\n\n    /// @notice Total staked balance for each token\n    /// IERC20 address -> uint256 (total staked balance)\n    mapping(IERC20 => uint256) public totalStakedBalance;\n\n    /// @notice Staked balances for each user\n    /// user address -> IERC20 address -> uint256 (staked balance)\n    mapping(address => mapping(IERC20 => uint256)) public stakedBalances;\n\n    /*//////////////////////////////////////////////////////////////\n                              CONSTRUCTOR\n    //////////////////////////////////////////////////////////////*/\n\n    constructor(address _owner) Ownable(_owner) {}\n\n    /*//////////////////////////////////////////////////////////////\n                               RESTRICTED\n    //////////////////////////////////////////////////////////////*/\n\n    /// @inheritdoc ISimpleStakingERC20\n    function supportToken(IERC20 _token, Supported calldata _supported) external onlyOwner {\n        if (address(_token) == address(0)) revert ADDRESS_NULL();\n\n        supportedTokens[_token] = _supported;\n\n        emit SupportedToken(_token, _supported);\n    }\n\n    /// @inheritdoc ISimpleStakingERC20\n    function rescueERC20(IERC20 _token) external onlyOwner {\n        _token.safeTransfer(owner(), _token.balanceOf(address(this)) - totalStakedBalance[_token]);\n    }\n\n    /*//////////////////////////////////////////////////////////////\n                                 PUBLIC\n    //////////////////////////////////////////////////////////////*/\n\n    /// @inheritdoc ISimpleStakingERC20\n    function deposit(IERC20 _token, uint256 _amount, address _receiver) external nonReentrant {\n        if (_amount == 0) revert AMOUNT_NULL();\n        if (_receiver == address(0)) revert ADDRESS_NULL();\n        if (!supportedTokens[_token].deposit) revert TOKEN_NOT_ALLOWED(_token);\n\n        uint256 bal = _token.balanceOf(address(this));\n        _token.safeTransferFrom(msg.sender, address(this), _amount);\n        _amount = _token.balanceOf(address(this)) - bal; // To handle deflationary tokens\n\n        totalStakedBalance[_token] += _amount;\n\n        unchecked {\n            stakedBalances[_receiver][_token] += _amount;\n        }\n\n        emit Deposit(_token, _receiver, _amount);\n    }\n\n    /// @inheritdoc ISimpleStakingERC20\n    function withdraw(IERC20 _token, uint256 _amount, address _receiver) external nonReentrant {\n        if (_amount == 0) revert AMOUNT_NULL();\n        if (stakedBalances[msg.sender][_token] < _amount) revert INSUFFICIENT_BALANCE();\n        if (_receiver == address(0)) revert ADDRESS_NULL();\n        if (!supportedTokens[_token].withdraw) revert TOKEN_NOT_ALLOWED(_token);\n\n        unchecked {\n            totalStakedBalance[_token] -= _amount;\n            stakedBalances[msg.sender][_token] -= _amount;\n        }\n\n        _token.safeTransfer(_receiver, _amount);\n\n        emit Withdraw(_token, msg.sender, _amount);\n    }\n}\n"
      },
      "lib/openzeppelin-contracts/contracts/token/ERC20/IERC20.sol": {
        "content": "// SPDX-License-Identifier: MIT\r\n// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/IERC20.sol)\r\n\r\npragma solidity ^0.8.20;\r\n\r\n/**\r\n * @dev Interface of the ERC20 standard as defined in the EIP.\r\n */\r\ninterface IERC20 {\r\n    /**\r\n     * @dev Emitted when `value` tokens are moved from one account (`from`) to\r\n     * another (`to`).\r\n     *\r\n     * Note that `value` may be zero.\r\n     */\r\n    event Transfer(address indexed from, address indexed to, uint256 value);\r\n\r\n    /**\r\n     * @dev Emitted when the allowance of a `spender` for an `owner` is set by\r\n     * a call to {approve}. `value` is the new allowance.\r\n     */\r\n    event Approval(address indexed owner, address indexed spender, uint256 value);\r\n\r\n    /**\r\n     * @dev Returns the value of tokens in existence.\r\n     */\r\n    function totalSupply() external view returns (uint256);\r\n\r\n    /**\r\n     * @dev Returns the value of tokens owned by `account`.\r\n     */\r\n    function balanceOf(address account) external view returns (uint256);\r\n\r\n    /**\r\n     * @dev Moves a `value` amount of tokens from the caller's account to `to`.\r\n     *\r\n     * Returns a boolean value indicating whether the operation succeeded.\r\n     *\r\n     * Emits a {Transfer} event.\r\n     */\r\n    function transfer(address to, uint256 value) external returns (bool);\r\n\r\n    /**\r\n     * @dev Returns the remaining number of tokens that `spender` will be\r\n     * allowed to spend on behalf of `owner` through {transferFrom}. This is\r\n     * zero by default.\r\n     *\r\n     * This value changes when {approve} or {transferFrom} are called.\r\n     */\r\n    function allowance(address owner, address spender) external view returns (uint256);\r\n\r\n    /**\r\n     * @dev Sets a `value` amount of tokens as the allowance of `spender` over the\r\n     * caller's tokens.\r\n     *\r\n     * Returns a boolean value indicating whether the operation succeeded.\r\n     *\r\n     * IMPORTANT: Beware that changing an allowance with this method brings the risk\r\n     * that someone may use both the old and the new allowance by unfortunate\r\n     * transaction ordering. One possible solution to mitigate this race\r\n     * condition is to first reduce the spender's allowance to 0 and set the\r\n     * desired value afterwards:\r\n     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\r\n     *\r\n     * Emits an {Approval} event.\r\n     */\r\n    function approve(address spender, uint256 value) external returns (bool);\r\n\r\n    /**\r\n     * @dev Moves a `value` amount of tokens from `from` to `to` using the\r\n     * allowance mechanism. `value` is then deducted from the caller's\r\n     * allowance.\r\n     *\r\n     * Returns a boolean value indicating whether the operation succeeded.\r\n     *\r\n     * Emits a {Transfer} event.\r\n     */\r\n    function transferFrom(address from, address to, uint256 value) external returns (bool);\r\n}\r\n"
      },
      "lib/openzeppelin-contracts/contracts/token/ERC20/utils/SafeERC20.sol": {
        "content": "// SPDX-License-Identifier: MIT\r\n// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/utils/SafeERC20.sol)\r\n\r\npragma solidity ^0.8.20;\r\n\r\nimport {IERC20} from \"../IERC20.sol\";\r\nimport {IERC20Permit} from \"../extensions/IERC20Permit.sol\";\r\nimport {Address} from \"../../../utils/Address.sol\";\r\n\r\n/**\r\n * @title SafeERC20\r\n * @dev Wrappers around ERC20 operations that throw on failure (when the token\r\n * contract returns false). Tokens that return no value (and instead revert or\r\n * throw on failure) are also supported, non-reverting calls are assumed to be\r\n * successful.\r\n * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,\r\n * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.\r\n */\r\nlibrary SafeERC20 {\r\n    using Address for address;\r\n\r\n    /**\r\n     * @dev An operation with an ERC20 token failed.\r\n     */\r\n    error SafeERC20FailedOperation(address token);\r\n\r\n    /**\r\n     * @dev Indicates a failed `decreaseAllowance` request.\r\n     */\r\n    error SafeERC20FailedDecreaseAllowance(address spender, uint256 currentAllowance, uint256 requestedDecrease);\r\n\r\n    /**\r\n     * @dev Transfer `value` amount of `token` from the calling contract to `to`. If `token` returns no value,\r\n     * non-reverting calls are assumed to be successful.\r\n     */\r\n    function safeTransfer(IERC20 token, address to, uint256 value) internal {\r\n        _callOptionalReturn(token, abi.encodeCall(token.transfer, (to, value)));\r\n    }\r\n\r\n    /**\r\n     * @dev Transfer `value` amount of `token` from `from` to `to`, spending the approval given by `from` to the\r\n     * calling contract. If `token` returns no value, non-reverting calls are assumed to be successful.\r\n     */\r\n    function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {\r\n        _callOptionalReturn(token, abi.encodeCall(token.transferFrom, (from, to, value)));\r\n    }\r\n\r\n    /**\r\n     * @dev Increase the calling contract's allowance toward `spender` by `value`. If `token` returns no value,\r\n     * non-reverting calls are assumed to be successful.\r\n     */\r\n    function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {\r\n        uint256 oldAllowance = token.allowance(address(this), spender);\r\n        forceApprove(token, spender, oldAllowance + value);\r\n    }\r\n\r\n    /**\r\n     * @dev Decrease the calling contract's allowance toward `spender` by `requestedDecrease`. If `token` returns no\r\n     * value, non-reverting calls are assumed to be successful.\r\n     */\r\n    function safeDecreaseAllowance(IERC20 token, address spender, uint256 requestedDecrease) internal {\r\n        unchecked {\r\n            uint256 currentAllowance = token.allowance(address(this), spender);\r\n            if (currentAllowance < requestedDecrease) {\r\n                revert SafeERC20FailedDecreaseAllowance(spender, currentAllowance, requestedDecrease);\r\n            }\r\n            forceApprove(token, spender, currentAllowance - requestedDecrease);\r\n        }\r\n    }\r\n\r\n    /**\r\n     * @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value,\r\n     * non-reverting calls are assumed to be successful. Meant to be used with tokens that require the approval\r\n     * to be set to zero before setting it to a non-zero value, such as USDT.\r\n     */\r\n    function forceApprove(IERC20 token, address spender, uint256 value) internal {\r\n        bytes memory approvalCall = abi.encodeCall(token.approve, (spender, value));\r\n\r\n        if (!_callOptionalReturnBool(token, approvalCall)) {\r\n            _callOptionalReturn(token, abi.encodeCall(token.approve, (spender, 0)));\r\n            _callOptionalReturn(token, approvalCall);\r\n        }\r\n    }\r\n\r\n    /**\r\n     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement\r\n     * on the return value: the return value is optional (but if data is returned, it must not be false).\r\n     * @param token The token targeted by the call.\r\n     * @param data The call data (encoded using abi.encode or one of its variants).\r\n     */\r\n    function _callOptionalReturn(IERC20 token, bytes memory data) private {\r\n        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since\r\n        // we're implementing it ourselves. We use {Address-functionCall} to perform this call, which verifies that\r\n        // the target address contains contract code and also asserts for success in the low-level call.\r\n\r\n        bytes memory returndata = address(token).functionCall(data);\r\n        if (returndata.length != 0 && !abi.decode(returndata, (bool))) {\r\n            revert SafeERC20FailedOperation(address(token));\r\n        }\r\n    }\r\n\r\n    /**\r\n     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement\r\n     * on the return value: the return value is optional (but if data is returned, it must not be false).\r\n     * @param token The token targeted by the call.\r\n     * @param data The call data (encoded using abi.encode or one of its variants).\r\n     *\r\n     * This is a variant of {_callOptionalReturn} that silents catches all reverts and returns a bool instead.\r\n     */\r\n    function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) {\r\n        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since\r\n        // we're implementing it ourselves. We cannot use {Address-functionCall} here since this should return false\r\n        // and not revert is the subcall reverts.\r\n\r\n        (bool success, bytes memory returndata) = address(token).call(data);\r\n        return success && (returndata.length == 0 || abi.decode(returndata, (bool))) && address(token).code.length > 0;\r\n    }\r\n}\r\n"
      },
      "lib/openzeppelin-contracts/contracts/utils/ReentrancyGuard.sol": {
        "content": "// SPDX-License-Identifier: MIT\r\n// OpenZeppelin Contracts (last updated v5.0.0) (utils/ReentrancyGuard.sol)\r\n\r\npragma solidity ^0.8.20;\r\n\r\n/**\r\n * @dev Contract module that helps prevent reentrant calls to a function.\r\n *\r\n * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier\r\n * available, which can be applied to functions to make sure there are no nested\r\n * (reentrant) calls to them.\r\n *\r\n * Note that because there is a single `nonReentrant` guard, functions marked as\r\n * `nonReentrant` may not call one another. This can be worked around by making\r\n * those functions `private`, and then adding `external` `nonReentrant` entry\r\n * points to them.\r\n *\r\n * TIP: If you would like to learn more about reentrancy and alternative ways\r\n * to protect against it, check out our blog post\r\n * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].\r\n */\r\nabstract contract ReentrancyGuard {\r\n    // Booleans are more expensive than uint256 or any type that takes up a full\r\n    // word because each write operation emits an extra SLOAD to first read the\r\n    // slot's contents, replace the bits taken up by the boolean, and then write\r\n    // back. This is the compiler's defense against contract upgrades and\r\n    // pointer aliasing, and it cannot be disabled.\r\n\r\n    // The values being non-zero value makes deployment a bit more expensive,\r\n    // but in exchange the refund on every call to nonReentrant will be lower in\r\n    // amount. Since refunds are capped to a percentage of the total\r\n    // transaction's gas, it is best to keep them low in cases like this one, to\r\n    // increase the likelihood of the full refund coming into effect.\r\n    uint256 private constant NOT_ENTERED = 1;\r\n    uint256 private constant ENTERED = 2;\r\n\r\n    uint256 private _status;\r\n\r\n    /**\r\n     * @dev Unauthorized reentrant call.\r\n     */\r\n    error ReentrancyGuardReentrantCall();\r\n\r\n    constructor() {\r\n        _status = NOT_ENTERED;\r\n    }\r\n\r\n    /**\r\n     * @dev Prevents a contract from calling itself, directly or indirectly.\r\n     * Calling a `nonReentrant` function from another `nonReentrant`\r\n     * function is not supported. It is possible to prevent this from happening\r\n     * by making the `nonReentrant` function external, and making it call a\r\n     * `private` function that does the actual work.\r\n     */\r\n    modifier nonReentrant() {\r\n        _nonReentrantBefore();\r\n        _;\r\n        _nonReentrantAfter();\r\n    }\r\n\r\n    function _nonReentrantBefore() private {\r\n        // On the first call to nonReentrant, _status will be NOT_ENTERED\r\n        if (_status == ENTERED) {\r\n            revert ReentrancyGuardReentrantCall();\r\n        }\r\n\r\n        // Any calls to nonReentrant after this point will fail\r\n        _status = ENTERED;\r\n    }\r\n\r\n    function _nonReentrantAfter() private {\r\n        // By storing the original value once again, a refund is triggered (see\r\n        // https://eips.ethereum.org/EIPS/eip-2200)\r\n        _status = NOT_ENTERED;\r\n    }\r\n\r\n    /**\r\n     * @dev Returns true if the reentrancy guard is currently set to \"entered\", which indicates there is a\r\n     * `nonReentrant` function in the call stack.\r\n     */\r\n    function _reentrancyGuardEntered() internal view returns (bool) {\r\n        return _status == ENTERED;\r\n    }\r\n}\r\n"
      },
      "lib/openzeppelin-contracts/contracts/access/Ownable2Step.sol": {
        "content": "// SPDX-License-Identifier: MIT\r\n// OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable2Step.sol)\r\n\r\npragma solidity ^0.8.20;\r\n\r\nimport {Ownable} from \"./Ownable.sol\";\r\n\r\n/**\r\n * @dev Contract module which provides access control mechanism, where\r\n * there is an account (an owner) that can be granted exclusive access to\r\n * specific functions.\r\n *\r\n * The initial owner is specified at deployment time in the constructor for `Ownable`. This\r\n * can later be changed with {transferOwnership} and {acceptOwnership}.\r\n *\r\n * This module is used through inheritance. It will make available all functions\r\n * from parent (Ownable).\r\n */\r\nabstract contract Ownable2Step is Ownable {\r\n    address private _pendingOwner;\r\n\r\n    event OwnershipTransferStarted(address indexed previousOwner, address indexed newOwner);\r\n\r\n    /**\r\n     * @dev Returns the address of the pending owner.\r\n     */\r\n    function pendingOwner() public view virtual returns (address) {\r\n        return _pendingOwner;\r\n    }\r\n\r\n    /**\r\n     * @dev Starts the ownership transfer of the contract to a new account. Replaces the pending transfer if there is one.\r\n     * Can only be called by the current owner.\r\n     */\r\n    function transferOwnership(address newOwner) public virtual override onlyOwner {\r\n        _pendingOwner = newOwner;\r\n        emit OwnershipTransferStarted(owner(), newOwner);\r\n    }\r\n\r\n    /**\r\n     * @dev Transfers ownership of the contract to a new account (`newOwner`) and deletes any pending owner.\r\n     * Internal function without access restriction.\r\n     */\r\n    function _transferOwnership(address newOwner) internal virtual override {\r\n        delete _pendingOwner;\r\n        super._transferOwnership(newOwner);\r\n    }\r\n\r\n    /**\r\n     * @dev The new owner accepts the ownership transfer.\r\n     */\r\n    function acceptOwnership() public virtual {\r\n        address sender = _msgSender();\r\n        if (pendingOwner() != sender) {\r\n            revert OwnableUnauthorizedAccount(sender);\r\n        }\r\n        _transferOwnership(sender);\r\n    }\r\n}\r\n"
      },
      "src/interfaces/ISimpleStakingERC20.sol": {
        "content": "// SPDX-License-Identifier: UNLICENSED\npragma solidity 0.8.23;\n\nimport {IERC20} from \"@openzeppelin/contracts/token/ERC20/IERC20.sol\";\n\ninterface ISimpleStakingERC20 {\n    /// @notice Struct to hold the supported booleans\n    /// @param deposit true if deposit is supported\n    /// @param withdraw true if withdraw is supported\n    struct Supported {\n        bool deposit;\n        bool withdraw;\n    }\n\n    /// @notice Error emitted when the amount is null\n    error AMOUNT_NULL();\n\n    /// @notice Error emitted when the address is null\n    error ADDRESS_NULL();\n\n    /// @notice Error emitted when the balance is insufficient\n    error INSUFFICIENT_BALANCE();\n\n    /// @notice Error emitted when the token is not allowed\n    error TOKEN_NOT_ALLOWED(IERC20 token);\n\n    /// @notice Event emitted when a token is added or removed\n    /// @param token address of the token\n    /// @param supported struct with deposit and withdraw booleans\n    event SupportedToken(IERC20 indexed token, Supported supported);\n\n    /// @notice Event emitted when a deposit is made\n    /// @param token address of the token\n    /// @param staker address of the staker\n    /// @param amount amount of the deposit\n    event Deposit(IERC20 indexed token, address indexed staker, uint256 amount);\n\n    /// @notice Event emitted when a withdrawal is made\n    /// @param token address of the token\n    /// @param staker address of the staker\n    /// @param amount amount of the withdrawal\n    event Withdraw(IERC20 indexed token, address indexed staker, uint256 amount);\n\n    /// @notice Method to deposit tokens\n    /// @dev token are transferred from the sender, and the receiver is credited\n    /// @param _token address of the token\n    /// @param _amount amount to deposit\n    /// @param _receiver address of the receiver\n    function deposit(IERC20 _token, uint256 _amount, address _receiver) external;\n\n    /// @notice Method to rescue tokens, only callable by the owner\n    /// @dev difference between balance and internal balance is transferred to the owner\n    /// @param _token address of the token\n    function rescueERC20(IERC20 _token) external;\n\n    /// @notice Method to add or remove a token\n    /// @dev only callable by the owner\n    /// @param _token address of the token\n    /// @param _supported struct with deposit and withdraw booleans\n    function supportToken(IERC20 _token, Supported calldata _supported) external;\n\n    /// @notice Method to rescue tokens, only callable by the owner\n    /// @dev token are transferred to the receiver and sender is credited\n    /// @param _token address of the token\n    /// @param _amount amount to withdraw\n    /// @param _receiver address of the receiver\n    function withdraw(IERC20 _token, uint256 _amount, address _receiver) external;\n}\n"
      },
      "lib/openzeppelin-contracts/contracts/token/ERC20/extensions/IERC20Permit.sol": {
        "content": "// SPDX-License-Identifier: MIT\r\n// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/IERC20Permit.sol)\r\n\r\npragma solidity ^0.8.20;\r\n\r\n/**\r\n * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in\r\n * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].\r\n *\r\n * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by\r\n * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't\r\n * need to send a transaction, and thus is not required to hold Ether at all.\r\n *\r\n * ==== Security Considerations\r\n *\r\n * There are two important considerations concerning the use of `permit`. The first is that a valid permit signature\r\n * expresses an allowance, and it should not be assumed to convey additional meaning. In particular, it should not be\r\n * considered as an intention to spend the allowance in any specific way. The second is that because permits have\r\n * built-in replay protection and can be submitted by anyone, they can be frontrun. A protocol that uses permits should\r\n * take this into consideration and allow a `permit` call to fail. Combining these two aspects, a pattern that may be\r\n * generally recommended is:\r\n *\r\n * ```solidity\r\n * function doThingWithPermit(..., uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) public {\r\n *     try token.permit(msg.sender, address(this), value, deadline, v, r, s) {} catch {}\r\n *     doThing(..., value);\r\n * }\r\n *\r\n * function doThing(..., uint256 value) public {\r\n *     token.safeTransferFrom(msg.sender, address(this), value);\r\n *     ...\r\n * }\r\n * ```\r\n *\r\n * Observe that: 1) `msg.sender` is used as the owner, leaving no ambiguity as to the signer intent, and 2) the use of\r\n * `try/catch` allows the permit to fail and makes the code tolerant to frontrunning. (See also\r\n * {SafeERC20-safeTransferFrom}).\r\n *\r\n * Additionally, note that smart contract wallets (such as Argent or Safe) are not able to produce permit signatures, so\r\n * contracts should have entry points that don't rely on permit.\r\n */\r\ninterface IERC20Permit {\r\n    /**\r\n     * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,\r\n     * given ``owner``'s signed approval.\r\n     *\r\n     * IMPORTANT: The same issues {IERC20-approve} has related to transaction\r\n     * ordering also apply here.\r\n     *\r\n     * Emits an {Approval} event.\r\n     *\r\n     * Requirements:\r\n     *\r\n     * - `spender` cannot be the zero address.\r\n     * - `deadline` must be a timestamp in the future.\r\n     * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`\r\n     * over the EIP712-formatted function arguments.\r\n     * - the signature must use ``owner``'s current nonce (see {nonces}).\r\n     *\r\n     * For more information on the signature format, see the\r\n     * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP\r\n     * section].\r\n     *\r\n     * CAUTION: See Security Considerations above.\r\n     */\r\n    function permit(\r\n        address owner,\r\n        address spender,\r\n        uint256 value,\r\n        uint256 deadline,\r\n        uint8 v,\r\n        bytes32 r,\r\n        bytes32 s\r\n    ) external;\r\n\r\n    /**\r\n     * @dev Returns the current nonce for `owner`. This value must be\r\n     * included whenever a signature is generated for {permit}.\r\n     *\r\n     * Every successful call to {permit} increases ``owner``'s nonce by one. This\r\n     * prevents a signature from being used multiple times.\r\n     */\r\n    function nonces(address owner) external view returns (uint256);\r\n\r\n    /**\r\n     * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.\r\n     */\r\n    // solhint-disable-next-line func-name-mixedcase\r\n    function DOMAIN_SEPARATOR() external view returns (bytes32);\r\n}\r\n"
      },
      "lib/openzeppelin-contracts/contracts/utils/Address.sol": {
        "content": "// SPDX-License-Identifier: MIT\r\n// OpenZeppelin Contracts (last updated v5.0.0) (utils/Address.sol)\r\n\r\npragma solidity ^0.8.20;\r\n\r\n/**\r\n * @dev Collection of functions related to the address type\r\n */\r\nlibrary Address {\r\n    /**\r\n     * @dev The ETH balance of the account is not enough to perform the operation.\r\n     */\r\n    error AddressInsufficientBalance(address account);\r\n\r\n    /**\r\n     * @dev There's no code at `target` (it is not a contract).\r\n     */\r\n    error AddressEmptyCode(address target);\r\n\r\n    /**\r\n     * @dev A call to an address target failed. The target may have reverted.\r\n     */\r\n    error FailedInnerCall();\r\n\r\n    /**\r\n     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\r\n     * `recipient`, forwarding all available gas and reverting on errors.\r\n     *\r\n     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\r\n     * of certain opcodes, possibly making contracts go over the 2300 gas limit\r\n     * imposed by `transfer`, making them unable to receive funds via\r\n     * `transfer`. {sendValue} removes this limitation.\r\n     *\r\n     * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].\r\n     *\r\n     * IMPORTANT: because control is transferred to `recipient`, care must be\r\n     * taken to not create reentrancy vulnerabilities. Consider using\r\n     * {ReentrancyGuard} or the\r\n     * https://solidity.readthedocs.io/en/v0.8.20/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\r\n     */\r\n    function sendValue(address payable recipient, uint256 amount) internal {\r\n        if (address(this).balance < amount) {\r\n            revert AddressInsufficientBalance(address(this));\r\n        }\r\n\r\n        (bool success, ) = recipient.call{value: amount}(\"\");\r\n        if (!success) {\r\n            revert FailedInnerCall();\r\n        }\r\n    }\r\n\r\n    /**\r\n     * @dev Performs a Solidity function call using a low level `call`. A\r\n     * plain `call` is an unsafe replacement for a function call: use this\r\n     * function instead.\r\n     *\r\n     * If `target` reverts with a revert reason or custom error, it is bubbled\r\n     * up by this function (like regular Solidity function calls). However, if\r\n     * the call reverted with no returned reason, this function reverts with a\r\n     * {FailedInnerCall} error.\r\n     *\r\n     * Returns the raw returned data. To convert to the expected return value,\r\n     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\r\n     *\r\n     * Requirements:\r\n     *\r\n     * - `target` must be a contract.\r\n     * - calling `target` with `data` must not revert.\r\n     */\r\n    function functionCall(address target, bytes memory data) internal returns (bytes memory) {\r\n        return functionCallWithValue(target, data, 0);\r\n    }\r\n\r\n    /**\r\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\r\n     * but also transferring `value` wei to `target`.\r\n     *\r\n     * Requirements:\r\n     *\r\n     * - the calling contract must have an ETH balance of at least `value`.\r\n     * - the called Solidity function must be `payable`.\r\n     */\r\n    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {\r\n        if (address(this).balance < value) {\r\n            revert AddressInsufficientBalance(address(this));\r\n        }\r\n        (bool success, bytes memory returndata) = target.call{value: value}(data);\r\n        return verifyCallResultFromTarget(target, success, returndata);\r\n    }\r\n\r\n    /**\r\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\r\n     * but performing a static call.\r\n     */\r\n    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\r\n        (bool success, bytes memory returndata) = target.staticcall(data);\r\n        return verifyCallResultFromTarget(target, success, returndata);\r\n    }\r\n\r\n    /**\r\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\r\n     * but performing a delegate call.\r\n     */\r\n    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {\r\n        (bool success, bytes memory returndata) = target.delegatecall(data);\r\n        return verifyCallResultFromTarget(target, success, returndata);\r\n    }\r\n\r\n    /**\r\n     * @dev Tool to verify that a low level call to smart-contract was successful, and reverts if the target\r\n     * was not a contract or bubbling up the revert reason (falling back to {FailedInnerCall}) in case of an\r\n     * unsuccessful call.\r\n     */\r\n    function verifyCallResultFromTarget(\r\n        address target,\r\n        bool success,\r\n        bytes memory returndata\r\n    ) internal view returns (bytes memory) {\r\n        if (!success) {\r\n            _revert(returndata);\r\n        } else {\r\n            // only check if target is a contract if the call was successful and the return data is empty\r\n            // otherwise we already know that it was a contract\r\n            if (returndata.length == 0 && target.code.length == 0) {\r\n                revert AddressEmptyCode(target);\r\n            }\r\n            return returndata;\r\n        }\r\n    }\r\n\r\n    /**\r\n     * @dev Tool to verify that a low level call was successful, and reverts if it wasn't, either by bubbling the\r\n     * revert reason or with a default {FailedInnerCall} error.\r\n     */\r\n    function verifyCallResult(bool success, bytes memory returndata) internal pure returns (bytes memory) {\r\n        if (!success) {\r\n            _revert(returndata);\r\n        } else {\r\n            return returndata;\r\n        }\r\n    }\r\n\r\n    /**\r\n     * @dev Reverts with returndata if present. Otherwise reverts with {FailedInnerCall}.\r\n     */\r\n    function _revert(bytes memory returndata) private pure {\r\n        // Look for revert reason and bubble it up if present\r\n        if (returndata.length > 0) {\r\n            // The easiest way to bubble the revert reason is using memory via assembly\r\n            /// @solidity memory-safe-assembly\r\n            assembly {\r\n                let returndata_size := mload(returndata)\r\n                revert(add(32, returndata), returndata_size)\r\n            }\r\n        } else {\r\n            revert FailedInnerCall();\r\n        }\r\n    }\r\n}\r\n"
      },
      "lib/openzeppelin-contracts/contracts/access/Ownable.sol": {
        "content": "// SPDX-License-Identifier: MIT\r\n// OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol)\r\n\r\npragma solidity ^0.8.20;\r\n\r\nimport {Context} from \"../utils/Context.sol\";\r\n\r\n/**\r\n * @dev Contract module which provides a basic access control mechanism, where\r\n * there is an account (an owner) that can be granted exclusive access to\r\n * specific functions.\r\n *\r\n * The initial owner is set to the address provided by the deployer. This can\r\n * later be changed with {transferOwnership}.\r\n *\r\n * This module is used through inheritance. It will make available the modifier\r\n * `onlyOwner`, which can be applied to your functions to restrict their use to\r\n * the owner.\r\n */\r\nabstract contract Ownable is Context {\r\n    address private _owner;\r\n\r\n    /**\r\n     * @dev The caller account is not authorized to perform an operation.\r\n     */\r\n    error OwnableUnauthorizedAccount(address account);\r\n\r\n    /**\r\n     * @dev The owner is not a valid owner account. (eg. `address(0)`)\r\n     */\r\n    error OwnableInvalidOwner(address owner);\r\n\r\n    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);\r\n\r\n    /**\r\n     * @dev Initializes the contract setting the address provided by the deployer as the initial owner.\r\n     */\r\n    constructor(address initialOwner) {\r\n        if (initialOwner == address(0)) {\r\n            revert OwnableInvalidOwner(address(0));\r\n        }\r\n        _transferOwnership(initialOwner);\r\n    }\r\n\r\n    /**\r\n     * @dev Throws if called by any account other than the owner.\r\n     */\r\n    modifier onlyOwner() {\r\n        _checkOwner();\r\n        _;\r\n    }\r\n\r\n    /**\r\n     * @dev Returns the address of the current owner.\r\n     */\r\n    function owner() public view virtual returns (address) {\r\n        return _owner;\r\n    }\r\n\r\n    /**\r\n     * @dev Throws if the sender is not the owner.\r\n     */\r\n    function _checkOwner() internal view virtual {\r\n        if (owner() != _msgSender()) {\r\n            revert OwnableUnauthorizedAccount(_msgSender());\r\n        }\r\n    }\r\n\r\n    /**\r\n     * @dev Leaves the contract without owner. It will not be possible to call\r\n     * `onlyOwner` functions. Can only be called by the current owner.\r\n     *\r\n     * NOTE: Renouncing ownership will leave the contract without an owner,\r\n     * thereby disabling any functionality that is only available to the owner.\r\n     */\r\n    function renounceOwnership() public virtual onlyOwner {\r\n        _transferOwnership(address(0));\r\n    }\r\n\r\n    /**\r\n     * @dev Transfers ownership of the contract to a new account (`newOwner`).\r\n     * Can only be called by the current owner.\r\n     */\r\n    function transferOwnership(address newOwner) public virtual onlyOwner {\r\n        if (newOwner == address(0)) {\r\n            revert OwnableInvalidOwner(address(0));\r\n        }\r\n        _transferOwnership(newOwner);\r\n    }\r\n\r\n    /**\r\n     * @dev Transfers ownership of the contract to a new account (`newOwner`).\r\n     * Internal function without access restriction.\r\n     */\r\n    function _transferOwnership(address newOwner) internal virtual {\r\n        address oldOwner = _owner;\r\n        _owner = newOwner;\r\n        emit OwnershipTransferred(oldOwner, newOwner);\r\n    }\r\n}\r\n"
      },
      "lib/openzeppelin-contracts/contracts/utils/Context.sol": {
        "content": "// SPDX-License-Identifier: MIT\r\n// OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)\r\n\r\npragma solidity ^0.8.20;\r\n\r\n/**\r\n * @dev Provides information about the current execution context, including the\r\n * sender of the transaction and its data. While these are generally available\r\n * via msg.sender and msg.data, they should not be accessed in such a direct\r\n * manner, since when dealing with meta-transactions the account sending and\r\n * paying for execution may not be the actual sender (as far as an application\r\n * is concerned).\r\n *\r\n * This contract is only required for intermediate, library-like contracts.\r\n */\r\nabstract contract Context {\r\n    function _msgSender() internal view virtual returns (address) {\r\n        return msg.sender;\r\n    }\r\n\r\n    function _msgData() internal view virtual returns (bytes calldata) {\r\n        return msg.data;\r\n    }\r\n\r\n    function _contextSuffixLength() internal view virtual returns (uint256) {\r\n        return 0;\r\n    }\r\n}\r\n"
      }
    },
    "settings": {
      "remappings": [
        "forge-std/=lib/forge-std/src/",
        "ds-test/=lib/forge-std/lib/ds-test/src/",
        "solmate/=lib/solmate/src/",
        "@openzeppelin/contracts/=lib/openzeppelin-contracts/contracts/"
      ],
      "optimizer": {
        "enabled": true,
        "runs": 200
      },
      "metadata": {
        "useLiteralContent": false,
        "bytecodeHash": "ipfs",
        "appendCBOR": true
      },
      "outputSelection": {
        "*": {
          "*": [
            "evm.bytecode",
            "evm.deployedBytecode",
            "devdoc",
            "userdoc",
            "metadata",
            "abi"
          ]
        }
      },
      "evmVersion": "shanghai",
      "libraries": {}
    }
  }}