creation_sourcecode: {{
    "language": "Solidity",
    "sources": {
      "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../utils/ContextUpgradeable.sol\";\nimport {Initializable} from \"../proxy/utils/Initializable.sol\";\n\n/**\n * @dev Contract module which provides a basic access control mechanism, where\n * there is an account (an owner) that can be granted exclusive access to\n * specific functions.\n *\n * By default, the owner account will be the one that deploys the contract. This\n * can later be changed with {transferOwnership}.\n *\n * This module is used through inheritance. It will make available the modifier\n * `onlyOwner`, which can be applied to your functions to restrict their use to\n * the owner.\n */\nabstract contract OwnableUpgradeable is Initializable, ContextUpgradeable {\n    address private _owner;\n\n    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);\n\n    /**\n     * @dev Initializes the contract setting the deployer as the initial owner.\n     */\n    function __Ownable_init() internal onlyInitializing {\n        __Ownable_init_unchained();\n    }\n\n    function __Ownable_init_unchained() internal onlyInitializing {\n        _transferOwnership(_msgSender());\n    }\n\n    /**\n     * @dev Throws if called by any account other than the owner.\n     */\n    modifier onlyOwner() {\n        _checkOwner();\n        _;\n    }\n\n    /**\n     * @dev Returns the address of the current owner.\n     */\n    function owner() public view virtual returns (address) {\n        return _owner;\n    }\n\n    /**\n     * @dev Throws if the sender is not the owner.\n     */\n    function _checkOwner() internal view virtual {\n        require(owner() == _msgSender(), \"Ownable: caller is not the owner\");\n    }\n\n    /**\n     * @dev Leaves the contract without owner. It will not be possible to call\n     * `onlyOwner` functions. Can only be called by the current owner.\n     *\n     * NOTE: Renouncing ownership will leave the contract without an owner,\n     * thereby disabling any functionality that is only available to the owner.\n     */\n    function renounceOwnership() public virtual onlyOwner {\n        _transferOwnership(address(0));\n    }\n\n    /**\n     * @dev Transfers ownership of the contract to a new account (`newOwner`).\n     * Can only be called by the current owner.\n     */\n    function transferOwnership(address newOwner) public virtual onlyOwner {\n        require(newOwner != address(0), \"Ownable: new owner is the zero address\");\n        _transferOwnership(newOwner);\n    }\n\n    /**\n     * @dev Transfers ownership of the contract to a new account (`newOwner`).\n     * Internal function without access restriction.\n     */\n    function _transferOwnership(address newOwner) internal virtual {\n        address oldOwner = _owner;\n        _owner = newOwner;\n        emit OwnershipTransferred(oldOwner, newOwner);\n    }\n\n    /**\n     * @dev This empty reserved space is put in place to allow future versions to add new\n     * variables without shifting down storage in the inheritance chain.\n     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps\n     */\n    uint256[49] private __gap;\n}\n"
      },
      "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (proxy/utils/Initializable.sol)\n\npragma solidity ^0.8.2;\n\nimport \"../../utils/AddressUpgradeable.sol\";\n\n/**\n * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed\n * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an\n * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer\n * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.\n *\n * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be\n * reused. This mechanism prevents re-execution of each \"step\" but allows the creation of new initialization steps in\n * case an upgrade adds a module that needs to be initialized.\n *\n * For example:\n *\n * [.hljs-theme-light.nopadding]\n * ```solidity\n * contract MyToken is ERC20Upgradeable {\n *     function initialize() initializer public {\n *         __ERC20_init(\"MyToken\", \"MTK\");\n *     }\n * }\n *\n * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {\n *     function initializeV2() reinitializer(2) public {\n *         __ERC20Permit_init(\"MyToken\");\n *     }\n * }\n * ```\n *\n * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as\n * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.\n *\n * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure\n * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.\n *\n * [CAUTION]\n * ====\n * Avoid leaving a contract uninitialized.\n *\n * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation\n * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke\n * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:\n *\n * [.hljs-theme-light.nopadding]\n * ```\n * /// @custom:oz-upgrades-unsafe-allow constructor\n * constructor() {\n *     _disableInitializers();\n * }\n * ```\n * ====\n */\nabstract contract Initializable {\n    /**\n     * @dev Indicates that the contract has been initialized.\n     * @custom:oz-retyped-from bool\n     */\n    uint8 private _initialized;\n\n    /**\n     * @dev Indicates that the contract is in the process of being initialized.\n     */\n    bool private _initializing;\n\n    /**\n     * @dev Triggered when the contract has been initialized or reinitialized.\n     */\n    event Initialized(uint8 version);\n\n    /**\n     * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,\n     * `onlyInitializing` functions can be used to initialize parent contracts.\n     *\n     * Similar to `reinitializer(1)`, except that functions marked with `initializer` can be nested in the context of a\n     * constructor.\n     *\n     * Emits an {Initialized} event.\n     */\n    modifier initializer() {\n        bool isTopLevelCall = !_initializing;\n        require(\n            (isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1),\n            \"Initializable: contract is already initialized\"\n        );\n        _initialized = 1;\n        if (isTopLevelCall) {\n            _initializing = true;\n        }\n        _;\n        if (isTopLevelCall) {\n            _initializing = false;\n            emit Initialized(1);\n        }\n    }\n\n    /**\n     * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the\n     * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be\n     * used to initialize parent contracts.\n     *\n     * A reinitializer may be used after the original initialization step. This is essential to configure modules that\n     * are added through upgrades and that require initialization.\n     *\n     * When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`\n     * cannot be nested. If one is invoked in the context of another, execution will revert.\n     *\n     * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in\n     * a contract, executing them in the right order is up to the developer or operator.\n     *\n     * WARNING: setting the version to 255 will prevent any future reinitialization.\n     *\n     * Emits an {Initialized} event.\n     */\n    modifier reinitializer(uint8 version) {\n        require(!_initializing && _initialized < version, \"Initializable: contract is already initialized\");\n        _initialized = version;\n        _initializing = true;\n        _;\n        _initializing = false;\n        emit Initialized(version);\n    }\n\n    /**\n     * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the\n     * {initializer} and {reinitializer} modifiers, directly or indirectly.\n     */\n    modifier onlyInitializing() {\n        require(_initializing, \"Initializable: contract is not initializing\");\n        _;\n    }\n\n    /**\n     * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.\n     * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized\n     * to any version. It is recommended to use this to lock implementation contracts that are designed to be called\n     * through proxies.\n     *\n     * Emits an {Initialized} event the first time it is successfully executed.\n     */\n    function _disableInitializers() internal virtual {\n        require(!_initializing, \"Initializable: contract is initializing\");\n        if (_initialized != type(uint8).max) {\n            _initialized = type(uint8).max;\n            emit Initialized(type(uint8).max);\n        }\n    }\n\n    /**\n     * @dev Returns the highest version that has been initialized. See {reinitializer}.\n     */\n    function _getInitializedVersion() internal view returns (uint8) {\n        return _initialized;\n    }\n\n    /**\n     * @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}.\n     */\n    function _isInitializing() internal view returns (bool) {\n        return _initializing;\n    }\n}\n"
      },
      "@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol)\n\npragma solidity ^0.8.1;\n\n/**\n * @dev Collection of functions related to the address type\n */\nlibrary AddressUpgradeable {\n    /**\n     * @dev Returns true if `account` is a contract.\n     *\n     * [IMPORTANT]\n     * ====\n     * It is unsafe to assume that an address for which this function returns\n     * false is an externally-owned account (EOA) and not a contract.\n     *\n     * Among others, `isContract` will return false for the following\n     * types of addresses:\n     *\n     *  - an externally-owned account\n     *  - a contract in construction\n     *  - an address where a contract will be created\n     *  - an address where a contract lived, but was destroyed\n     *\n     * Furthermore, `isContract` will also return true if the target contract within\n     * the same transaction is already scheduled for destruction by `SELFDESTRUCT`,\n     * which only has an effect at the end of a transaction.\n     * ====\n     *\n     * [IMPORTANT]\n     * ====\n     * You shouldn't rely on `isContract` to protect against flash loan attacks!\n     *\n     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets\n     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract\n     * constructor.\n     * ====\n     */\n    function isContract(address account) internal view returns (bool) {\n        // This method relies on extcodesize/address.code.length, which returns 0\n        // for contracts in construction, since the code is only stored at the end\n        // of the constructor execution.\n\n        return account.code.length > 0;\n    }\n\n    /**\n     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n     * `recipient`, forwarding all available gas and reverting on errors.\n     *\n     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n     * of certain opcodes, possibly making contracts go over the 2300 gas limit\n     * imposed by `transfer`, making them unable to receive funds via\n     * `transfer`. {sendValue} removes this limitation.\n     *\n     * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n     *\n     * IMPORTANT: because control is transferred to `recipient`, care must be\n     * taken to not create reentrancy vulnerabilities. Consider using\n     * {ReentrancyGuard} or the\n     * https://solidity.readthedocs.io/en/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n     */\n    function sendValue(address payable recipient, uint256 amount) internal {\n        require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n        (bool success, ) = recipient.call{value: amount}(\"\");\n        require(success, \"Address: unable to send value, recipient may have reverted\");\n    }\n\n    /**\n     * @dev Performs a Solidity function call using a low level `call`. A\n     * plain `call` is an unsafe replacement for a function call: use this\n     * function instead.\n     *\n     * If `target` reverts with a revert reason, it is bubbled up by this\n     * function (like regular Solidity function calls).\n     *\n     * Returns the raw returned data. To convert to the expected return value,\n     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n     *\n     * Requirements:\n     *\n     * - `target` must be a contract.\n     * - calling `target` with `data` must not revert.\n     *\n     * _Available since v3.1._\n     */\n    function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n        return functionCallWithValue(target, data, 0, \"Address: low-level call failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n     * `errorMessage` as a fallback revert reason when `target` reverts.\n     *\n     * _Available since v3.1._\n     */\n    function functionCall(\n        address target,\n        bytes memory data,\n        string memory errorMessage\n    ) internal returns (bytes memory) {\n        return functionCallWithValue(target, data, 0, errorMessage);\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n     * but also transferring `value` wei to `target`.\n     *\n     * Requirements:\n     *\n     * - the calling contract must have an ETH balance of at least `value`.\n     * - the called Solidity function must be `payable`.\n     *\n     * _Available since v3.1._\n     */\n    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {\n        return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n     * with `errorMessage` as a fallback revert reason when `target` reverts.\n     *\n     * _Available since v3.1._\n     */\n    function functionCallWithValue(\n        address target,\n        bytes memory data,\n        uint256 value,\n        string memory errorMessage\n    ) internal returns (bytes memory) {\n        require(address(this).balance >= value, \"Address: insufficient balance for call\");\n        (bool success, bytes memory returndata) = target.call{value: value}(data);\n        return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n     * but performing a static call.\n     *\n     * _Available since v3.3._\n     */\n    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\n        return functionStaticCall(target, data, \"Address: low-level static call failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n     * but performing a static call.\n     *\n     * _Available since v3.3._\n     */\n    function functionStaticCall(\n        address target,\n        bytes memory data,\n        string memory errorMessage\n    ) internal view returns (bytes memory) {\n        (bool success, bytes memory returndata) = target.staticcall(data);\n        return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n     * but performing a delegate call.\n     *\n     * _Available since v3.4._\n     */\n    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {\n        return functionDelegateCall(target, data, \"Address: low-level delegate call failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n     * but performing a delegate call.\n     *\n     * _Available since v3.4._\n     */\n    function functionDelegateCall(\n        address target,\n        bytes memory data,\n        string memory errorMessage\n    ) internal returns (bytes memory) {\n        (bool success, bytes memory returndata) = target.delegatecall(data);\n        return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n    }\n\n    /**\n     * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling\n     * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.\n     *\n     * _Available since v4.8._\n     */\n    function verifyCallResultFromTarget(\n        address target,\n        bool success,\n        bytes memory returndata,\n        string memory errorMessage\n    ) internal view returns (bytes memory) {\n        if (success) {\n            if (returndata.length == 0) {\n                // only check isContract if the call was successful and the return data is empty\n                // otherwise we already know that it was a contract\n                require(isContract(target), \"Address: call to non-contract\");\n            }\n            return returndata;\n        } else {\n            _revert(returndata, errorMessage);\n        }\n    }\n\n    /**\n     * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the\n     * revert reason or using the provided one.\n     *\n     * _Available since v4.3._\n     */\n    function verifyCallResult(\n        bool success,\n        bytes memory returndata,\n        string memory errorMessage\n    ) internal pure returns (bytes memory) {\n        if (success) {\n            return returndata;\n        } else {\n            _revert(returndata, errorMessage);\n        }\n    }\n\n    function _revert(bytes memory returndata, string memory errorMessage) private pure {\n        // Look for revert reason and bubble it up if present\n        if (returndata.length > 0) {\n            // The easiest way to bubble the revert reason is using memory via assembly\n            /// @solidity memory-safe-assembly\n            assembly {\n                let returndata_size := mload(returndata)\n                revert(add(32, returndata), returndata_size)\n            }\n        } else {\n            revert(errorMessage);\n        }\n    }\n}\n"
      },
      "@openzeppelin/contracts-upgradeable/utils/ContextUpgradeable.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.4) (utils/Context.sol)\n\npragma solidity ^0.8.0;\nimport {Initializable} from \"../proxy/utils/Initializable.sol\";\n\n/**\n * @dev Provides information about the current execution context, including the\n * sender of the transaction and its data. While these are generally available\n * via msg.sender and msg.data, they should not be accessed in such a direct\n * manner, since when dealing with meta-transactions the account sending and\n * paying for execution may not be the actual sender (as far as an application\n * is concerned).\n *\n * This contract is only required for intermediate, library-like contracts.\n */\nabstract contract ContextUpgradeable is Initializable {\n    function __Context_init() internal onlyInitializing {\n    }\n\n    function __Context_init_unchained() internal onlyInitializing {\n    }\n    function _msgSender() internal view virtual returns (address) {\n        return msg.sender;\n    }\n\n    function _msgData() internal view virtual returns (bytes calldata) {\n        return msg.data;\n    }\n\n    function _contextSuffixLength() internal view virtual returns (uint256) {\n        return 0;\n    }\n\n    /**\n     * @dev This empty reserved space is put in place to allow future versions to add new\n     * variables without shifting down storage in the inheritance chain.\n     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps\n     */\n    uint256[50] private __gap;\n}\n"
      },
      "@openzeppelin/contracts/utils/Address.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol)\n\npragma solidity ^0.8.1;\n\n/**\n * @dev Collection of functions related to the address type\n */\nlibrary Address {\n    /**\n     * @dev Returns true if `account` is a contract.\n     *\n     * [IMPORTANT]\n     * ====\n     * It is unsafe to assume that an address for which this function returns\n     * false is an externally-owned account (EOA) and not a contract.\n     *\n     * Among others, `isContract` will return false for the following\n     * types of addresses:\n     *\n     *  - an externally-owned account\n     *  - a contract in construction\n     *  - an address where a contract will be created\n     *  - an address where a contract lived, but was destroyed\n     *\n     * Furthermore, `isContract` will also return true if the target contract within\n     * the same transaction is already scheduled for destruction by `SELFDESTRUCT`,\n     * which only has an effect at the end of a transaction.\n     * ====\n     *\n     * [IMPORTANT]\n     * ====\n     * You shouldn't rely on `isContract` to protect against flash loan attacks!\n     *\n     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets\n     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract\n     * constructor.\n     * ====\n     */\n    function isContract(address account) internal view returns (bool) {\n        // This method relies on extcodesize/address.code.length, which returns 0\n        // for contracts in construction, since the code is only stored at the end\n        // of the constructor execution.\n\n        return account.code.length > 0;\n    }\n\n    /**\n     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n     * `recipient`, forwarding all available gas and reverting on errors.\n     *\n     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n     * of certain opcodes, possibly making contracts go over the 2300 gas limit\n     * imposed by `transfer`, making them unable to receive funds via\n     * `transfer`. {sendValue} removes this limitation.\n     *\n     * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n     *\n     * IMPORTANT: because control is transferred to `recipient`, care must be\n     * taken to not create reentrancy vulnerabilities. Consider using\n     * {ReentrancyGuard} or the\n     * https://solidity.readthedocs.io/en/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n     */\n    function sendValue(address payable recipient, uint256 amount) internal {\n        require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n        (bool success, ) = recipient.call{value: amount}(\"\");\n        require(success, \"Address: unable to send value, recipient may have reverted\");\n    }\n\n    /**\n     * @dev Performs a Solidity function call using a low level `call`. A\n     * plain `call` is an unsafe replacement for a function call: use this\n     * function instead.\n     *\n     * If `target` reverts with a revert reason, it is bubbled up by this\n     * function (like regular Solidity function calls).\n     *\n     * Returns the raw returned data. To convert to the expected return value,\n     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n     *\n     * Requirements:\n     *\n     * - `target` must be a contract.\n     * - calling `target` with `data` must not revert.\n     *\n     * _Available since v3.1._\n     */\n    function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n        return functionCallWithValue(target, data, 0, \"Address: low-level call failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n     * `errorMessage` as a fallback revert reason when `target` reverts.\n     *\n     * _Available since v3.1._\n     */\n    function functionCall(\n        address target,\n        bytes memory data,\n        string memory errorMessage\n    ) internal returns (bytes memory) {\n        return functionCallWithValue(target, data, 0, errorMessage);\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n     * but also transferring `value` wei to `target`.\n     *\n     * Requirements:\n     *\n     * - the calling contract must have an ETH balance of at least `value`.\n     * - the called Solidity function must be `payable`.\n     *\n     * _Available since v3.1._\n     */\n    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {\n        return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n     * with `errorMessage` as a fallback revert reason when `target` reverts.\n     *\n     * _Available since v3.1._\n     */\n    function functionCallWithValue(\n        address target,\n        bytes memory data,\n        uint256 value,\n        string memory errorMessage\n    ) internal returns (bytes memory) {\n        require(address(this).balance >= value, \"Address: insufficient balance for call\");\n        (bool success, bytes memory returndata) = target.call{value: value}(data);\n        return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n     * but performing a static call.\n     *\n     * _Available since v3.3._\n     */\n    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\n        return functionStaticCall(target, data, \"Address: low-level static call failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n     * but performing a static call.\n     *\n     * _Available since v3.3._\n     */\n    function functionStaticCall(\n        address target,\n        bytes memory data,\n        string memory errorMessage\n    ) internal view returns (bytes memory) {\n        (bool success, bytes memory returndata) = target.staticcall(data);\n        return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n     * but performing a delegate call.\n     *\n     * _Available since v3.4._\n     */\n    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {\n        return functionDelegateCall(target, data, \"Address: low-level delegate call failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n     * but performing a delegate call.\n     *\n     * _Available since v3.4._\n     */\n    function functionDelegateCall(\n        address target,\n        bytes memory data,\n        string memory errorMessage\n    ) internal returns (bytes memory) {\n        (bool success, bytes memory returndata) = target.delegatecall(data);\n        return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n    }\n\n    /**\n     * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling\n     * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.\n     *\n     * _Available since v4.8._\n     */\n    function verifyCallResultFromTarget(\n        address target,\n        bool success,\n        bytes memory returndata,\n        string memory errorMessage\n    ) internal view returns (bytes memory) {\n        if (success) {\n            if (returndata.length == 0) {\n                // only check isContract if the call was successful and the return data is empty\n                // otherwise we already know that it was a contract\n                require(isContract(target), \"Address: call to non-contract\");\n            }\n            return returndata;\n        } else {\n            _revert(returndata, errorMessage);\n        }\n    }\n\n    /**\n     * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the\n     * revert reason or using the provided one.\n     *\n     * _Available since v4.3._\n     */\n    function verifyCallResult(\n        bool success,\n        bytes memory returndata,\n        string memory errorMessage\n    ) internal pure returns (bytes memory) {\n        if (success) {\n            return returndata;\n        } else {\n            _revert(returndata, errorMessage);\n        }\n    }\n\n    function _revert(bytes memory returndata, string memory errorMessage) private pure {\n        // Look for revert reason and bubble it up if present\n        if (returndata.length > 0) {\n            // The easiest way to bubble the revert reason is using memory via assembly\n            /// @solidity memory-safe-assembly\n            assembly {\n                let returndata_size := mload(returndata)\n                revert(add(32, returndata), returndata_size)\n            }\n        } else {\n            revert(errorMessage);\n        }\n    }\n}\n"
      },
      "contracts/interfaces/IBlockUpdater.sol": {
        "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\ninterface IBlockUpdater {\n    function checkBlock(bytes32 blockHash, bytes32 receiptsRoot) external view returns (bool);\n}\n"
      },
      "contracts/interfaces/IValidationLibrary.sol": {
        "content": "// SPDX-License-Identifier: MIT\r\npragma solidity ^0.8.0;\r\n\r\ninterface IValidationLibrary {\r\n    struct Packet {\r\n        uint16 dstChainId;\r\n        uint64 nonce;\r\n        address dstAddress;\r\n        address srcAddress;\r\n        address srcZkBridge;\r\n        bytes32 receiptsRoot;\r\n        bytes payload;\r\n    }\r\n\r\n    function validateProof(bytes memory proof) external view returns (Packet memory packet);\r\n}\r\n"
      },
      "contracts/interfaces/IZKBridge.sol": {
        "content": "// SPDX-License-Identifier: MIT\r\n\r\npragma solidity ^0.8.0;\r\n\r\ninterface IZKBridge {\r\n    event MessagePublished(\r\n        address indexed sender,\r\n        uint16 indexed dstChainId,\r\n        uint64 indexed sequence,\r\n        address dstAddress,\r\n        bytes payload\r\n    );\r\n\r\n    event ExecutedMessage(\r\n        address indexed sender,\r\n        uint16 indexed srcChainId,\r\n        uint64 indexed sequence,\r\n        address dstAddress,\r\n        bytes payload\r\n    );\r\n\r\n    function send(uint16 dstChainId, address dstAddress, bytes memory payload) external payable returns (uint64 nonce);\r\n\r\n    function validateTransactionProof(\r\n        uint16 srcChainId,\r\n        bytes32 srcBlockHash,\r\n        uint256 _logIndex,\r\n        bytes memory mptProof\r\n    ) external;\r\n\r\n    function validateTransactionProofByZK(uint16 srcChainId, bytes32 srcBlockHash, bytes memory mptProof) external;\r\n\r\n    function estimateFee(uint16 dstChainId) external view returns (uint256 fee);\r\n}\r\n"
      },
      "contracts/interfaces/IZKBridgeReceiver.sol": {
        "content": "// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.0;\n\ninterface IZKBridgeReceiver {\n    // @notice ZKBridge endpoint will invoke this function to deliver the message on the destination\n    // @param srcChainId - the source endpoint identifier\n    // @param srcAddress - the source sending contract address from the source chain\n    // @param sequence - the ordered message nonce\n    // @param payload - the signed payload is the UA bytes has encoded to be sent\n    function zkReceive(uint16 srcChainId, address srcAddress, uint64 sequence, bytes calldata payload) external;\n}\n"
      },
      "contracts/ZKBridge.sol": {
        "content": "// SPDX-License-Identifier: MIT\r\n\r\npragma solidity ^0.8.0;\r\n\r\nimport \"@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol\";\r\nimport \"@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol\";\r\nimport \"@openzeppelin/contracts/utils/Address.sol\";\r\n\r\nimport \"./interfaces/IZKBridgeReceiver.sol\";\r\nimport \"./interfaces/IZKBridge.sol\";\r\nimport \"./interfaces/IValidationLibrary.sol\";\r\nimport \"./interfaces/IBlockUpdater.sol\";\r\n\r\ncontract ZKBridge is Initializable, OwnableUpgradeable, IZKBridge {\r\n    event SetFee(uint16 dstChainId, uint256 fee);\r\n\r\n    event ClaimFee(address operator, uint256 amount);\r\n\r\n    event SetTrustedRemoteAddress(uint16 chainId, address remoteAddress);\r\n\r\n    event SetValidationLib(uint16 chainId, address validationLib);\r\n\r\n    event SetZKValidationLib(uint16 chainId, address validationLib);\r\n\r\n    event SetSupportedChain(uint16 chainId, bool flag);\r\n\r\n    event SetBlockUpdater(uint16 chainId, address lockUpdater);\r\n\r\n    event SetFeeManager(address feeManager, bool flag);\r\n\r\n    event SetFeeReceiver(address feeReceiver);\r\n\r\n    uint16 public chainId;\r\n\r\n    // chainId => validationLibrary\r\n    mapping(uint16 => IValidationLibrary) public validationLibs;\r\n\r\n    // chainId => blockUpdaterAddress\r\n    mapping(uint16 => IBlockUpdater) public blockUpdaters;\r\n\r\n    mapping(bytes32 => uint64) public targetNonce;\r\n\r\n    // chainId => zkBridgeAddress\r\n    mapping(uint16 => address) public trustedRemoteLookup;\r\n\r\n    mapping(uint16 => uint256) public fees;\r\n\r\n    mapping(address => bool) public feeManager;\r\n\r\n    mapping(bytes32 => uint256) public completedTransfersCompact;\r\n\r\n    mapping(uint16 => bool) public supportedDstChain;\r\n\r\n    // chainId => zkValidationLibrary\r\n    mapping(uint16 => IValidationLibrary) public zkValidationLibs;\r\n\r\n    address public feeReceiver;\r\n\r\n    modifier onlyFeeManager() {\r\n        require(feeManager[msg.sender], \"ZKBridge:caller is not the fee manager\");\r\n        _;\r\n    }\r\n\r\n    constructor() {\r\n        _disableInitializers();\r\n    }\r\n\r\n    function initialize(uint16 _chainId, address _feeReceiver) public initializer {\r\n        require(_chainId != 0, \"ZKBridge:Invalid chainId\");\r\n        require(_feeReceiver != address(0), \"ZKBridge:Invalid feeReceiver\");\r\n        __Ownable_init();\r\n        chainId = _chainId;\r\n        feeReceiver = _feeReceiver;\r\n    }\r\n\r\n    function send(\r\n        uint16 _dstChainId,\r\n        address _dstAddress,\r\n        bytes memory _payload\r\n    ) external payable returns (uint64 currentNonce) {\r\n        require(_dstChainId != chainId, \"ZKBridge:Cannot send to same chain\");\r\n        require(msg.value >= _estimateFee(_dstChainId), \"ZKBridge:Insufficient Fee\");\r\n        require(supportedDstChain[_dstChainId], \"ZKBridge:Unsupported dest chain\");\r\n        currentNonce = _useNonce(msg.sender, _dstChainId, _dstAddress);\r\n        emit MessagePublished(msg.sender, _dstChainId, currentNonce, _dstAddress, _payload);\r\n    }\r\n\r\n    function validateTransactionProof(\r\n        uint16 _srcChainId,\r\n        bytes32 _srcBlockHash,\r\n        uint256 _logIndex,\r\n        bytes calldata _proof\r\n    ) external {\r\n        IValidationLibrary validationLib = validationLibs[_srcChainId];\r\n        require(address(validationLib) != address(0), \"ZKBridge:ValidationLib is not set\");\r\n        IValidationLibrary.Packet memory packet = validationLib.validateProof(abi.encode(_logIndex, _proof));\r\n        _validate(_srcChainId, _srcBlockHash, packet);\r\n    }\r\n\r\n    function validateTransactionProofByZK(uint16 _srcChainId, bytes32 _srcBlockHash, bytes calldata _proof) external {\r\n        IValidationLibrary validationLib = zkValidationLibs[_srcChainId];\r\n        require(address(validationLib) != address(0), \"ZKBridge:ZKValidationLib is not set\");\r\n        IValidationLibrary.Packet memory packet = validationLib.validateProof(_proof);\r\n        _validate(_srcChainId, _srcBlockHash, packet);\r\n    }\r\n\r\n    function _validate(uint16 _srcChainId, bytes32 _srcBlockHash, IValidationLibrary.Packet memory packet) internal {\r\n        IBlockUpdater blockUpdater = blockUpdaters[_srcChainId];\r\n        require(address(blockUpdater) != address(0), \"ZKBridge:Block Updater is not set\");\r\n        require(blockUpdater.checkBlock(_srcBlockHash, packet.receiptsRoot), \"ZKBridge:Block Header is not set\");\r\n\r\n        require(\r\n            packet.srcZkBridge == trustedRemoteLookup[_srcChainId],\r\n            \"ZKBridge:Destination chain is not a trusted sourcee\"\r\n        );\r\n        require(packet.dstChainId == chainId, \"ZKBridge:Invalid destination chain\");\r\n\r\n        bytes32 hash = keccak256(abi.encode(_srcChainId, packet.srcAddress, packet.dstAddress, packet.nonce / 256));\r\n        uint256 compactStatus = completedTransfersCompact[hash];\r\n        uint256 mask = 1 << packet.nonce % 256;\r\n        require(compactStatus & mask == 0, \"ZKBridge:Message already executed.\");\r\n        completedTransfersCompact[hash] = compactStatus | mask;\r\n\r\n        IZKBridgeReceiver(packet.dstAddress).zkReceive(_srcChainId, packet.srcAddress, packet.nonce, packet.payload);\r\n        emit ExecutedMessage(packet.srcAddress, _srcChainId, packet.nonce, packet.dstAddress, packet.payload);\r\n    }\r\n\r\n    function _useNonce(\r\n        address _emitter,\r\n        uint16 _dstChainId,\r\n        address _dstAddress\r\n    ) internal returns (uint64 currentNonce) {\r\n        bytes32 hash = keccak256(abi.encode(_emitter, _dstChainId, _dstAddress));\r\n        currentNonce = targetNonce[hash];\r\n        targetNonce[hash]++;\r\n    }\r\n\r\n    function _estimateFee(uint16 _dstChainId) internal view returns (uint256 bridgeFee) {\r\n        bridgeFee = fees[_dstChainId];\r\n    }\r\n\r\n    function estimateFee(uint16 _dstChainId) external view returns (uint256 bridgeFee) {\r\n        bridgeFee = _estimateFee(_dstChainId);\r\n    }\r\n\r\n    function claimFees() external {\r\n        require(feeReceiver != address(0), \"ZKBridge:Invalid feeReceiver\");\r\n        uint256 fee = address(this).balance;\r\n        Address.sendValue(payable(feeReceiver), fee);\r\n        emit ClaimFee(feeReceiver, fee);\r\n    }\r\n\r\n    //----------------------------------------------------------------------------------\r\n    // onlyFeeManager\r\n    function setFee(uint16 _dstChainId, uint256 _fee) public onlyFeeManager {\r\n        fees[_dstChainId] = _fee;\r\n        emit SetFee(_dstChainId, _fee);\r\n    }\r\n\r\n    function setFee(uint16[] calldata _dstChainId, uint256[] calldata _fee) public onlyFeeManager {\r\n        require(_dstChainId.length == _fee.length);\r\n        for (uint256 i = 0; i < _dstChainId.length; i++) {\r\n            fees[_dstChainId[i]] = _fee[i];\r\n            emit SetFee(_dstChainId[i], _fee[i]);\r\n        }\r\n    }\r\n\r\n    //----------------------------------------------------------------------------------\r\n    // onlyOwner\r\n    function setTrustedRemoteAddress(uint16 _remoteChainId, address _remoteAddress) external onlyOwner {\r\n        trustedRemoteLookup[_remoteChainId] = _remoteAddress;\r\n        emit SetTrustedRemoteAddress(_remoteChainId, _remoteAddress);\r\n    }\r\n\r\n    function setValidationLib(uint16 _chainId, address _validationLib) external onlyOwner {\r\n        require(_validationLib != address(0), \"ZKBridge:Zero address\");\r\n        validationLibs[_chainId] = IValidationLibrary(_validationLib);\r\n        emit SetValidationLib(_chainId, _validationLib);\r\n    }\r\n\r\n    function setZKValidationLib(uint16 _chainId, address _validationLib) external onlyOwner {\r\n        require(_validationLib != address(0), \"ZKBridge:Zero address\");\r\n        zkValidationLibs[_chainId] = IValidationLibrary(_validationLib);\r\n        emit SetZKValidationLib(_chainId, _validationLib);\r\n    }\r\n\r\n    function setSupportedChain(uint16 _chainId, bool flag) external onlyOwner {\r\n        require(supportedDstChain[_chainId] != flag, \"ZKBridge:Invalid flag\");\r\n        supportedDstChain[_chainId] = flag;\r\n        emit SetSupportedChain(_chainId, flag);\r\n    }\r\n\r\n    function setBlockUpdater(uint16 _chainId, address _blockUpdater) external onlyOwner {\r\n        require(_blockUpdater != address(0), \"ZKBridge:Zero address\");\r\n        blockUpdaters[_chainId] = IBlockUpdater(_blockUpdater);\r\n        emit SetBlockUpdater(_chainId, _blockUpdater);\r\n    }\r\n\r\n    function setFeeManager(address _feeManager, bool _flag) external onlyOwner {\r\n        require(_feeManager != address(0), \"ZKBridge:Zero address\");\r\n        feeManager[_feeManager] = _flag;\r\n        emit SetFeeManager(_feeManager, _flag);\r\n    }\r\n\r\n    function setFeeReceiver(address _feeReceiver) external onlyOwner {\r\n        require(_feeReceiver != address(0), \"ZKBridge:Zero address\");\r\n        require(_feeReceiver != feeReceiver, \"ZKBridge:FeeReceiver no change\");\r\n        feeReceiver = _feeReceiver;\r\n        emit SetFeeReceiver(_feeReceiver);\r\n    }\r\n\r\n    fallback() external payable {\r\n        revert(\"ZKBridge:unsupported\");\r\n    }\r\n\r\n    receive() external payable {\r\n        revert(\"ZKBridge:the ZkBridge contract does not accept assets\");\r\n    }\r\n}\r\n"
      }
    },
    "settings": {
      "optimizer": {
        "enabled": true,
        "runs": 200
      },
      "outputSelection": {
        "*": {
          "*": [
            "evm.bytecode",
            "evm.deployedBytecode",
            "devdoc",
            "userdoc",
            "metadata",
            "abi"
          ]
        }
      },
      "libraries": {}
    }
  }}