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/security/PausableUpgradeable.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (security/Pausable.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 allows children to implement an emergency stop\n * mechanism that can be triggered by an authorized account.\n *\n * This module is used through inheritance. It will make available the\n * modifiers `whenNotPaused` and `whenPaused`, which can be applied to\n * the functions of your contract. Note that they will not be pausable by\n * simply including this module, only once the modifiers are put in place.\n */\nabstract contract PausableUpgradeable is Initializable, ContextUpgradeable {\n    /**\n     * @dev Emitted when the pause is triggered by `account`.\n     */\n    event Paused(address account);\n\n    /**\n     * @dev Emitted when the pause is lifted by `account`.\n     */\n    event Unpaused(address account);\n\n    bool private _paused;\n\n    /**\n     * @dev Initializes the contract in unpaused state.\n     */\n    function __Pausable_init() internal onlyInitializing {\n        __Pausable_init_unchained();\n    }\n\n    function __Pausable_init_unchained() internal onlyInitializing {\n        _paused = false;\n    }\n\n    /**\n     * @dev Modifier to make a function callable only when the contract is not paused.\n     *\n     * Requirements:\n     *\n     * - The contract must not be paused.\n     */\n    modifier whenNotPaused() {\n        _requireNotPaused();\n        _;\n    }\n\n    /**\n     * @dev Modifier to make a function callable only when the contract is paused.\n     *\n     * Requirements:\n     *\n     * - The contract must be paused.\n     */\n    modifier whenPaused() {\n        _requirePaused();\n        _;\n    }\n\n    /**\n     * @dev Returns true if the contract is paused, and false otherwise.\n     */\n    function paused() public view virtual returns (bool) {\n        return _paused;\n    }\n\n    /**\n     * @dev Throws if the contract is paused.\n     */\n    function _requireNotPaused() internal view virtual {\n        require(!paused(), \"Pausable: paused\");\n    }\n\n    /**\n     * @dev Throws if the contract is not paused.\n     */\n    function _requirePaused() internal view virtual {\n        require(paused(), \"Pausable: not paused\");\n    }\n\n    /**\n     * @dev Triggers stopped state.\n     *\n     * Requirements:\n     *\n     * - The contract must not be paused.\n     */\n    function _pause() internal virtual whenNotPaused {\n        _paused = true;\n        emit Paused(_msgSender());\n    }\n\n    /**\n     * @dev Returns to normal state.\n     *\n     * Requirements:\n     *\n     * - The contract must be paused.\n     */\n    function _unpause() internal virtual whenPaused {\n        _paused = false;\n        emit Unpaused(_msgSender());\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/security/ReentrancyGuardUpgradeable.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (security/ReentrancyGuard.sol)\n\npragma solidity ^0.8.0;\nimport {Initializable} from \"../proxy/utils/Initializable.sol\";\n\n/**\n * @dev Contract module that helps prevent reentrant calls to a function.\n *\n * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier\n * available, which can be applied to functions to make sure there are no nested\n * (reentrant) calls to them.\n *\n * Note that because there is a single `nonReentrant` guard, functions marked as\n * `nonReentrant` may not call one another. This can be worked around by making\n * those functions `private`, and then adding `external` `nonReentrant` entry\n * points to them.\n *\n * TIP: If you would like to learn more about reentrancy and alternative ways\n * to protect against it, check out our blog post\n * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].\n */\nabstract contract ReentrancyGuardUpgradeable is Initializable {\n    // Booleans are more expensive than uint256 or any type that takes up a full\n    // word because each write operation emits an extra SLOAD to first read the\n    // slot's contents, replace the bits taken up by the boolean, and then write\n    // back. This is the compiler's defense against contract upgrades and\n    // pointer aliasing, and it cannot be disabled.\n\n    // The values being non-zero value makes deployment a bit more expensive,\n    // but in exchange the refund on every call to nonReentrant will be lower in\n    // amount. Since refunds are capped to a percentage of the total\n    // transaction's gas, it is best to keep them low in cases like this one, to\n    // increase the likelihood of the full refund coming into effect.\n    uint256 private constant _NOT_ENTERED = 1;\n    uint256 private constant _ENTERED = 2;\n\n    uint256 private _status;\n\n    function __ReentrancyGuard_init() internal onlyInitializing {\n        __ReentrancyGuard_init_unchained();\n    }\n\n    function __ReentrancyGuard_init_unchained() internal onlyInitializing {\n        _status = _NOT_ENTERED;\n    }\n\n    /**\n     * @dev Prevents a contract from calling itself, directly or indirectly.\n     * Calling a `nonReentrant` function from another `nonReentrant`\n     * function is not supported. It is possible to prevent this from happening\n     * by making the `nonReentrant` function external, and making it call a\n     * `private` function that does the actual work.\n     */\n    modifier nonReentrant() {\n        _nonReentrantBefore();\n        _;\n        _nonReentrantAfter();\n    }\n\n    function _nonReentrantBefore() private {\n        // On the first call to nonReentrant, _status will be _NOT_ENTERED\n        require(_status != _ENTERED, \"ReentrancyGuard: reentrant call\");\n\n        // Any calls to nonReentrant after this point will fail\n        _status = _ENTERED;\n    }\n\n    function _nonReentrantAfter() private {\n        // By storing the original value once again, a refund is triggered (see\n        // https://eips.ethereum.org/EIPS/eip-2200)\n        _status = _NOT_ENTERED;\n    }\n\n    /**\n     * @dev Returns true if the reentrancy guard is currently set to \"entered\", which indicates there is a\n     * `nonReentrant` function in the call stack.\n     */\n    function _reentrancyGuardEntered() internal view returns (bool) {\n        return _status == _ENTERED;\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/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/token/ERC20/ERC20.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/ERC20.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./IERC20.sol\";\nimport \"./extensions/IERC20Metadata.sol\";\nimport \"../../utils/Context.sol\";\n\n/**\n * @dev Implementation of the {IERC20} interface.\n *\n * This implementation is agnostic to the way tokens are created. This means\n * that a supply mechanism has to be added in a derived contract using {_mint}.\n * For a generic mechanism see {ERC20PresetMinterPauser}.\n *\n * TIP: For a detailed writeup see our guide\n * https://forum.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How\n * to implement supply mechanisms].\n *\n * The default value of {decimals} is 18. To change this, you should override\n * this function so it returns a different value.\n *\n * We have followed general OpenZeppelin Contracts guidelines: functions revert\n * instead returning `false` on failure. This behavior is nonetheless\n * conventional and does not conflict with the expectations of ERC20\n * applications.\n *\n * Additionally, an {Approval} event is emitted on calls to {transferFrom}.\n * This allows applications to reconstruct the allowance for all accounts just\n * by listening to said events. Other implementations of the EIP may not emit\n * these events, as it isn't required by the specification.\n *\n * Finally, the non-standard {decreaseAllowance} and {increaseAllowance}\n * functions have been added to mitigate the well-known issues around setting\n * allowances. See {IERC20-approve}.\n */\ncontract ERC20 is Context, IERC20, IERC20Metadata {\n    mapping(address => uint256) private _balances;\n\n    mapping(address => mapping(address => uint256)) private _allowances;\n\n    uint256 private _totalSupply;\n\n    string private _name;\n    string private _symbol;\n\n    /**\n     * @dev Sets the values for {name} and {symbol}.\n     *\n     * All two of these values are immutable: they can only be set once during\n     * construction.\n     */\n    constructor(string memory name_, string memory symbol_) {\n        _name = name_;\n        _symbol = symbol_;\n    }\n\n    /**\n     * @dev Returns the name of the token.\n     */\n    function name() public view virtual override returns (string memory) {\n        return _name;\n    }\n\n    /**\n     * @dev Returns the symbol of the token, usually a shorter version of the\n     * name.\n     */\n    function symbol() public view virtual override returns (string memory) {\n        return _symbol;\n    }\n\n    /**\n     * @dev Returns the number of decimals used to get its user representation.\n     * For example, if `decimals` equals `2`, a balance of `505` tokens should\n     * be displayed to a user as `5.05` (`505 / 10 ** 2`).\n     *\n     * Tokens usually opt for a value of 18, imitating the relationship between\n     * Ether and Wei. This is the default value returned by this function, unless\n     * it's overridden.\n     *\n     * NOTE: This information is only used for _display_ purposes: it in\n     * no way affects any of the arithmetic of the contract, including\n     * {IERC20-balanceOf} and {IERC20-transfer}.\n     */\n    function decimals() public view virtual override returns (uint8) {\n        return 18;\n    }\n\n    /**\n     * @dev See {IERC20-totalSupply}.\n     */\n    function totalSupply() public view virtual override returns (uint256) {\n        return _totalSupply;\n    }\n\n    /**\n     * @dev See {IERC20-balanceOf}.\n     */\n    function balanceOf(address account) public view virtual override returns (uint256) {\n        return _balances[account];\n    }\n\n    /**\n     * @dev See {IERC20-transfer}.\n     *\n     * Requirements:\n     *\n     * - `to` cannot be the zero address.\n     * - the caller must have a balance of at least `amount`.\n     */\n    function transfer(address to, uint256 amount) public virtual override returns (bool) {\n        address owner = _msgSender();\n        _transfer(owner, to, amount);\n        return true;\n    }\n\n    /**\n     * @dev See {IERC20-allowance}.\n     */\n    function allowance(address owner, address spender) public view virtual override returns (uint256) {\n        return _allowances[owner][spender];\n    }\n\n    /**\n     * @dev See {IERC20-approve}.\n     *\n     * NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on\n     * `transferFrom`. This is semantically equivalent to an infinite approval.\n     *\n     * Requirements:\n     *\n     * - `spender` cannot be the zero address.\n     */\n    function approve(address spender, uint256 amount) public virtual override returns (bool) {\n        address owner = _msgSender();\n        _approve(owner, spender, amount);\n        return true;\n    }\n\n    /**\n     * @dev See {IERC20-transferFrom}.\n     *\n     * Emits an {Approval} event indicating the updated allowance. This is not\n     * required by the EIP. See the note at the beginning of {ERC20}.\n     *\n     * NOTE: Does not update the allowance if the current allowance\n     * is the maximum `uint256`.\n     *\n     * Requirements:\n     *\n     * - `from` and `to` cannot be the zero address.\n     * - `from` must have a balance of at least `amount`.\n     * - the caller must have allowance for ``from``'s tokens of at least\n     * `amount`.\n     */\n    function transferFrom(address from, address to, uint256 amount) public virtual override returns (bool) {\n        address spender = _msgSender();\n        _spendAllowance(from, spender, amount);\n        _transfer(from, to, amount);\n        return true;\n    }\n\n    /**\n     * @dev Atomically increases the allowance granted to `spender` by the caller.\n     *\n     * This is an alternative to {approve} that can be used as a mitigation for\n     * problems described in {IERC20-approve}.\n     *\n     * Emits an {Approval} event indicating the updated allowance.\n     *\n     * Requirements:\n     *\n     * - `spender` cannot be the zero address.\n     */\n    function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {\n        address owner = _msgSender();\n        _approve(owner, spender, allowance(owner, spender) + addedValue);\n        return true;\n    }\n\n    /**\n     * @dev Atomically decreases the allowance granted to `spender` by the caller.\n     *\n     * This is an alternative to {approve} that can be used as a mitigation for\n     * problems described in {IERC20-approve}.\n     *\n     * Emits an {Approval} event indicating the updated allowance.\n     *\n     * Requirements:\n     *\n     * - `spender` cannot be the zero address.\n     * - `spender` must have allowance for the caller of at least\n     * `subtractedValue`.\n     */\n    function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {\n        address owner = _msgSender();\n        uint256 currentAllowance = allowance(owner, spender);\n        require(currentAllowance >= subtractedValue, \"ERC20: decreased allowance below zero\");\n        unchecked {\n            _approve(owner, spender, currentAllowance - subtractedValue);\n        }\n\n        return true;\n    }\n\n    /**\n     * @dev Moves `amount` of tokens from `from` to `to`.\n     *\n     * This internal function is equivalent to {transfer}, and can be used to\n     * e.g. implement automatic token fees, slashing mechanisms, etc.\n     *\n     * Emits a {Transfer} event.\n     *\n     * Requirements:\n     *\n     * - `from` cannot be the zero address.\n     * - `to` cannot be the zero address.\n     * - `from` must have a balance of at least `amount`.\n     */\n    function _transfer(address from, address to, uint256 amount) internal virtual {\n        require(from != address(0), \"ERC20: transfer from the zero address\");\n        require(to != address(0), \"ERC20: transfer to the zero address\");\n\n        _beforeTokenTransfer(from, to, amount);\n\n        uint256 fromBalance = _balances[from];\n        require(fromBalance >= amount, \"ERC20: transfer amount exceeds balance\");\n        unchecked {\n            _balances[from] = fromBalance - amount;\n            // Overflow not possible: the sum of all balances is capped by totalSupply, and the sum is preserved by\n            // decrementing then incrementing.\n            _balances[to] += amount;\n        }\n\n        emit Transfer(from, to, amount);\n\n        _afterTokenTransfer(from, to, amount);\n    }\n\n    /** @dev Creates `amount` tokens and assigns them to `account`, increasing\n     * the total supply.\n     *\n     * Emits a {Transfer} event with `from` set to the zero address.\n     *\n     * Requirements:\n     *\n     * - `account` cannot be the zero address.\n     */\n    function _mint(address account, uint256 amount) internal virtual {\n        require(account != address(0), \"ERC20: mint to the zero address\");\n\n        _beforeTokenTransfer(address(0), account, amount);\n\n        _totalSupply += amount;\n        unchecked {\n            // Overflow not possible: balance + amount is at most totalSupply + amount, which is checked above.\n            _balances[account] += amount;\n        }\n        emit Transfer(address(0), account, amount);\n\n        _afterTokenTransfer(address(0), account, amount);\n    }\n\n    /**\n     * @dev Destroys `amount` tokens from `account`, reducing the\n     * total supply.\n     *\n     * Emits a {Transfer} event with `to` set to the zero address.\n     *\n     * Requirements:\n     *\n     * - `account` cannot be the zero address.\n     * - `account` must have at least `amount` tokens.\n     */\n    function _burn(address account, uint256 amount) internal virtual {\n        require(account != address(0), \"ERC20: burn from the zero address\");\n\n        _beforeTokenTransfer(account, address(0), amount);\n\n        uint256 accountBalance = _balances[account];\n        require(accountBalance >= amount, \"ERC20: burn amount exceeds balance\");\n        unchecked {\n            _balances[account] = accountBalance - amount;\n            // Overflow not possible: amount <= accountBalance <= totalSupply.\n            _totalSupply -= amount;\n        }\n\n        emit Transfer(account, address(0), amount);\n\n        _afterTokenTransfer(account, address(0), amount);\n    }\n\n    /**\n     * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.\n     *\n     * This internal function is equivalent to `approve`, and can be used to\n     * e.g. set automatic allowances for certain subsystems, etc.\n     *\n     * Emits an {Approval} event.\n     *\n     * Requirements:\n     *\n     * - `owner` cannot be the zero address.\n     * - `spender` cannot be the zero address.\n     */\n    function _approve(address owner, address spender, uint256 amount) internal virtual {\n        require(owner != address(0), \"ERC20: approve from the zero address\");\n        require(spender != address(0), \"ERC20: approve to the zero address\");\n\n        _allowances[owner][spender] = amount;\n        emit Approval(owner, spender, amount);\n    }\n\n    /**\n     * @dev Updates `owner` s allowance for `spender` based on spent `amount`.\n     *\n     * Does not update the allowance amount in case of infinite allowance.\n     * Revert if not enough allowance is available.\n     *\n     * Might emit an {Approval} event.\n     */\n    function _spendAllowance(address owner, address spender, uint256 amount) internal virtual {\n        uint256 currentAllowance = allowance(owner, spender);\n        if (currentAllowance != type(uint256).max) {\n            require(currentAllowance >= amount, \"ERC20: insufficient allowance\");\n            unchecked {\n                _approve(owner, spender, currentAllowance - amount);\n            }\n        }\n    }\n\n    /**\n     * @dev Hook that is called before any transfer of tokens. This includes\n     * minting and burning.\n     *\n     * Calling conditions:\n     *\n     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens\n     * will be transferred to `to`.\n     * - when `from` is zero, `amount` tokens will be minted for `to`.\n     * - when `to` is zero, `amount` of ``from``'s tokens will be burned.\n     * - `from` and `to` are never both zero.\n     *\n     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n     */\n    function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual {}\n\n    /**\n     * @dev Hook that is called after any transfer of tokens. This includes\n     * minting and burning.\n     *\n     * Calling conditions:\n     *\n     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens\n     * has been transferred to `to`.\n     * - when `from` is zero, `amount` tokens have been minted for `to`.\n     * - when `to` is zero, `amount` of ``from``'s tokens have been burned.\n     * - `from` and `to` are never both zero.\n     *\n     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n     */\n    function _afterTokenTransfer(address from, address to, uint256 amount) internal virtual {}\n}\n"
      },
      "@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../IERC20.sol\";\n\n/**\n * @dev Interface for the optional metadata functions from the ERC20 standard.\n *\n * _Available since v4.1._\n */\ninterface IERC20Metadata is IERC20 {\n    /**\n     * @dev Returns the name of the token.\n     */\n    function name() external view returns (string memory);\n\n    /**\n     * @dev Returns the symbol of the token.\n     */\n    function symbol() external view returns (string memory);\n\n    /**\n     * @dev Returns the decimals places of the token.\n     */\n    function decimals() external view returns (uint8);\n}\n"
      },
      "@openzeppelin/contracts/token/ERC20/IERC20.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/IERC20.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC20 standard as defined in the EIP.\n */\ninterface IERC20 {\n    /**\n     * @dev Emitted when `value` tokens are moved from one account (`from`) to\n     * another (`to`).\n     *\n     * Note that `value` may be zero.\n     */\n    event Transfer(address indexed from, address indexed to, uint256 value);\n\n    /**\n     * @dev Emitted when the allowance of a `spender` for an `owner` is set by\n     * a call to {approve}. `value` is the new allowance.\n     */\n    event Approval(address indexed owner, address indexed spender, uint256 value);\n\n    /**\n     * @dev Returns the amount of tokens in existence.\n     */\n    function totalSupply() external view returns (uint256);\n\n    /**\n     * @dev Returns the amount of tokens owned by `account`.\n     */\n    function balanceOf(address account) external view returns (uint256);\n\n    /**\n     * @dev Moves `amount` tokens from the caller's account to `to`.\n     *\n     * Returns a boolean value indicating whether the operation succeeded.\n     *\n     * Emits a {Transfer} event.\n     */\n    function transfer(address to, uint256 amount) external returns (bool);\n\n    /**\n     * @dev Returns the remaining number of tokens that `spender` will be\n     * allowed to spend on behalf of `owner` through {transferFrom}. This is\n     * zero by default.\n     *\n     * This value changes when {approve} or {transferFrom} are called.\n     */\n    function allowance(address owner, address spender) external view returns (uint256);\n\n    /**\n     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\n     *\n     * Returns a boolean value indicating whether the operation succeeded.\n     *\n     * IMPORTANT: Beware that changing an allowance with this method brings the risk\n     * that someone may use both the old and the new allowance by unfortunate\n     * transaction ordering. One possible solution to mitigate this race\n     * condition is to first reduce the spender's allowance to 0 and set the\n     * desired value afterwards:\n     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n     *\n     * Emits an {Approval} event.\n     */\n    function approve(address spender, uint256 amount) external returns (bool);\n\n    /**\n     * @dev Moves `amount` tokens from `from` to `to` using the\n     * allowance mechanism. `amount` is then deducted from the caller's\n     * allowance.\n     *\n     * Returns a boolean value indicating whether the operation succeeded.\n     *\n     * Emits a {Transfer} event.\n     */\n    function transferFrom(address from, address to, uint256 amount) external returns (bool);\n}\n"
      },
      "@openzeppelin/contracts/utils/Context.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.4) (utils/Context.sol)\n\npragma solidity ^0.8.0;\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 Context {\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"
      },
      "contracts/interfaces/IFireChainToken.sol": {
        "content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.19;\n\ninterface IFireChainToken {\n    struct UserInfo {\n        uint256 shares; // number of shares for a user.\n        uint256 lastDepositedTime; // keep track of deposited time for potential penalty.\n        uint256 cakeAtLastUserAction; // keep track of cake deposited at the last user action.\n        uint256 lastUserActionTime; // keep track of the last user action time.\n        uint256 lockStartTime; // lock start time.\n        uint256 lockEndTime; // lock end time.\n        uint256 userBoostedShare; // boost share, in order to give the user higher reward. The user only enjoys the reward, so the principal needs to be recorded as a debt.\n        bool locked; //lock status.\n        uint256 lockedAmount; // amount deposited during lock period.\n    }\n\n    function userInfo(address user)\n        external\n        view\n        returns (\n            uint256,\n            uint256,\n            uint256,\n            uint256,\n            uint256,\n            uint256,\n            uint256,\n            bool,\n            uint256\n        );\n\n    function getPricePerFullShare() external view returns (uint256);\n\n    function deposit(uint256 _amount, uint256 _lockDuration) external;\n\n    function withdrawByAmount(uint256 _amount) external;\n\n    function withdraw(uint256 _shares) external;\n\n    function withdrawAll() external;\n}\n"
      },
      "contracts/Staking2.sol": {
        "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.19;\n\nimport \"@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol\";\nimport \"@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol\";\nimport \"@openzeppelin/contracts-upgradeable/security/ReentrancyGuardUpgradeable.sol\";\nimport \"@openzeppelin/contracts-upgradeable/security/PausableUpgradeable.sol\";\nimport \"@openzeppelin/contracts/token/ERC20/ERC20.sol\";\nimport \"@openzeppelin/contracts/token/ERC20/IERC20.sol\";\nimport \"./interfaces/IFireChainToken.sol\";\n\n/// @title FireChainStaking2 contract - Staking.\ncontract FireChainStaking2 is\n    Initializable,\n    OwnableUpgradeable,\n    ReentrancyGuardUpgradeable,\n    PausableUpgradeable\n{\n    ///@dev Variable to store the token contract address\n    IERC20 public token;\n\n    ///@dev Struct to define a pool.\n    ///@param token address of firechain token.\n    ///@param endDay EndDays of Pool.\n    ///@param lockDayPercent lockDayPercent of Pool.\n    ///@param boostDayPercent boostDayPercent of Pool.\n    ///@param unlockDayPercent unlockDayPercent of Pool.\n    ///@param lockPeriod Loking time of Pool.\n    ///@param maxDeposit user maxDeposit amount in Pool.\n    ///@param totalDeposited total deposit amount of Pool.\n    ///@param maxPoolAmount maxDeposit amount in Pool.\n    ///@param minBoostAmount boost amount in Pool.\n\n    struct Pool {\n        IERC20 token;\n        uint128 endDay;\n        uint128 lockDayPercent;\n        uint128 boostDayPercent;\n        uint128 unlockDayPercent;\n        uint128 lockPeriod;\n        uint128 maxDeposit;\n        uint128 minDeposit;\n        uint128 totalDeposited;\n        uint128 maxPoolAmount;\n        uint128 minBoostAmount;\n    }\n\n    // Array to store all pools\n    Pool[] public pools;\n\n    // Address to receive rewards\n    address public rewardWallet;\n\n    ///@dev Struct to store user information\n    ///@param userDeposit User deposit on pool.\n    ///@param accrueInterest User accrued interest.\n    ///@param lastDayActionSec lastDayAction of users.\n    ///@param boost chaking boost true or false of users.\n\n    struct UserInfo {\n        uint128 userDeposit;\n        uint128 accrueInterest;\n        uint128 lastDayActionSec;\n        uint128 lockInTime;\n        bool boost;\n    }\n\n    ///@dev Struct to store front-end information\n    struct InfoFront {\n        Pool pool;\n        UserInfo userInfo;\n        uint128 endLockTime;\n    }\n\n    // Mapping to store user information based on address and pool index\n    mapping(address => mapping(uint256 => UserInfo)) public userInfo;\n\n    ///@dev Event emitted when a new pool is added\n    event PoolAdded(\n        address indexed token,\n        uint128 lockPeriod,\n        uint256 poolIndex\n    );\n\n    // Event emitted when a user stakes tokens\n    event Staked(\n        address indexed user,\n        uint256 poolIndex,\n        address indexed token,\n        uint128 amount\n    );\n\n    // Event emitted when a user withdraws tokens\n    event Withdraw(\n        address indexed user,\n        uint256 poolIndex,\n        address indexed token,\n        uint128 amount\n    );\n\n    // Event emitted when a reward is staked\n    event RewardStaked(\n        address indexed user,\n        uint256 poolIndex,\n        address indexed token,\n        uint128 amount\n    );\n\n    // Event emitted when pool updated.\n    event poolUpdated(\n        uint256 poolIndex,\n        uint128 endDay,\n        uint128 minDeposit,\n        uint128 maxDeposit,\n        uint128 maxPoolAmount\n    );\n    //* Custom errors\n    // Error when an address is zero.\n    error ZeroAddressCheck();\n\n    // Error when a proxy contract is detected.\n    error ProxyContractNotAllowed();\n\n    // Error when a contract is detected.\n    error ContractNotAllowed();\n\n    // Error when a token must be of type FireChainToken.\n    error TokenMustBeFireChainToken();\n\n    // Error when the first day is wrong.\n    error WrongFirstDay();\n\n    // Error when an index is out of bounds.\n    error IndexOutOfBound();\n\n    // Error when the deposit amount is zero.\n    error DepositAmountZero();\n\n    // Error when more amount is needed.\n    error NeedMoreAmount();\n\n    // Error when it's too late for an action.\n    error TooLate();\n\n    // Error when no withdrawal is allowed.\n    error NoWithdrawalAllowed();\n\n    // Error when there's insufficient balance.\n    error InsufficientBalance();\n\n    // Error when there's insufficient reward.\n    error InsufficientReward();\n\n    // Error when the amount is over pool limits.\n    error AmountOverPoolLimits();\n\n    // Error when End day earlier than current day.\n    error EndDayTooShort(string);\n\n    // Error when min deposit exceeding max deposit amount.\n    error InvaildAmount(string);\n\n    IERC20 public fireChainToken;\n    uint128 public constant PERCENT_BASE = 10000;\n\n    // Modifier to prevent contracts from interacting with the contract.\n    modifier notContract() {\n        if (msg.sender != tx.origin) {\n            revert ProxyContractNotAllowed();\n        }\n        if (msg.sender.code.length != 0) {\n            revert ContractNotAllowed();\n        }\n        _;\n    }\n    fallback() external {}\n\n    /// @custom:oz-upgrades-unsafe-allow constructor\n    constructor() {\n        _disableInitializers();\n    }\n\n    ///@dev function to initialize the staking\n    ///@param _fireChainToken address of firechain token.\n    ///@param _rewardWallet address of rewardWallet.\n    function initialize(\n        address _fireChainToken,\n        address _rewardWallet\n    ) public initializer {\n        if (_rewardWallet == address(0)) {\n            revert ZeroAddressCheck();\n        }\n\n        __Ownable_init();\n        __ReentrancyGuard_init();\n        __Pausable_init();\n        rewardWallet = _rewardWallet;\n        fireChainToken = IERC20(_fireChainToken);\n    }\n\n    ///@dev Function to add a new pool.\n    ///@param _pool Pool id.\n    function addPool(Pool calldata _pool) external onlyOwner {\n        if (address(_pool.token) == address(0)) {\n            revert ZeroAddressCheck();\n        }\n\n        if (_pool.token != fireChainToken) {\n            revert TokenMustBeFireChainToken();\n        }\n        pools.push(_pool);\n        emit PoolAdded(\n            address(_pool.token),\n            _pool.lockPeriod,\n            pools.length - 1\n        );\n    }\n\n    ///@dev Function to update Pool.\n    ///@param _poolIndex pool Index number.\n    ///@param _endDay New end day for the pool\n    ///@param _minDeposit New minimum deposit allowed.\n    ///@param _maxDeposit New maximum deposit allowed\n    ///@param _maxPoolAmount New maximum pool amount allowed.\n    function updatePool(\n        uint256 _poolIndex,\n        uint128 _endDay,\n        uint128 _minDeposit,\n        uint128 _maxDeposit,\n        uint128 _maxPoolAmount\n    ) external onlyOwner {\n        if (_poolIndex > pools.length) {\n            revert IndexOutOfBound();\n        }\n        if (_endDay < getCurrentDay() + pools[_poolIndex].lockPeriod) {\n            revert EndDayTooShort(\"End day earlier than current day\");\n        }\n        if (_minDeposit >= _maxDeposit) {\n            revert InvaildAmount(\"min deposit exceeding max deposit amount\");\n        }\n        if (_maxDeposit >= _maxPoolAmount) {\n            revert InvaildAmount(\"max deposit exceeding max pool amount \");\n        }\n        pools[_poolIndex].endDay = _endDay;\n        pools[_poolIndex].minDeposit = _minDeposit;\n        pools[_poolIndex].maxDeposit = _maxDeposit;\n        pools[_poolIndex].maxPoolAmount = _maxPoolAmount;\n\n        emit poolUpdated(\n            _poolIndex,\n            _endDay,\n            _minDeposit,\n            _maxDeposit,\n            _maxPoolAmount\n        );\n    }\n\n    ///@dev Function to set the reward wallet address\n    ///@param _newEarn new rewardWallet address.\n    function setEarn(address _newEarn) external onlyOwner {\n        if (_newEarn == address(0)) {\n            revert ZeroAddressCheck();\n        }\n        rewardWallet = _newEarn;\n    }\n\n    ///@dev Function to pause the contract\n    function pause() external onlyOwner {\n        _pause();\n    }\n\n    ///@dev Function to unpause the contract\n    function unpause() external onlyOwner {\n        _unpause();\n    }\n\n    ///@dev Function to get the number of pools\n    function poolLength() public view returns (uint256 length) {\n        length = pools.length;\n    }\n\n    ///@dev Function to get the current day\n    function getCurrentDay() public view returns (uint128 currentDay) {\n        currentDay = uint128(block.timestamp); // Accrue everyday on 12:00 PM UTC\n    }\n\n    ///@dev Function to get the user information for a specific pool\n    ///@param _poolIndex pool id.\n    ///@param _user address of user.\n    function getUserInfo(\n        uint256 _poolIndex,\n        address _user\n    ) public view returns (InfoFront memory info, uint128 currentDay) {\n        if (_poolIndex > pools.length) {\n            revert IndexOutOfBound();\n        }\n\n        info.pool = pools[_poolIndex];\n        info.userInfo = userInfo[_user][_poolIndex];\n        currentDay = getCurrentDay();\n        (uint128 lockDays, uint128 unlockDays) = getMultiplier(\n            info.userInfo.lastDayActionSec,\n            info.pool.endDay,\n            info.pool.lockPeriod\n        );\n\n        uint128 lockInterest = info.userInfo.boost\n            ? ((info.userInfo.userDeposit *\n                info.pool.boostDayPercent *\n                lockDays) / (PERCENT_BASE * 86400 * 365))\n            : ((info.userInfo.userDeposit *\n                info.pool.lockDayPercent *\n                lockDays) / (PERCENT_BASE * 86400 * 365));\n\n        uint128 unlockInterest = ((info.userInfo.userDeposit *\n            info.pool.unlockDayPercent *\n            unlockDays) / (PERCENT_BASE * 86400 * 365));\n        info.userInfo.accrueInterest += lockInterest + unlockInterest;\n\n        uint128 lockEndDay = info.userInfo.lastDayActionSec +\n            info.pool.lockPeriod;\n        info.endLockTime = info.userInfo.userDeposit > 0\n            ? lockEndDay < info.pool.endDay\n                ? lockEndDay\n                : info.pool.endDay\n            : info.userInfo.lastDayActionSec;\n    }\n\n    /// @dev Function to stake tokens into a pool\n    /// @param _poolIndex The index of the pool where tokens will be staked.\n    /// @param _amount The amount of firechain-tokens to stake.\n    function stake(\n        uint256 _poolIndex,\n        uint128 _amount\n    ) public nonReentrant whenNotPaused notContract {\n        if (_poolIndex >= pools.length) {\n            revert IndexOutOfBound();\n        }\n        Pool memory _pool = pools[_poolIndex];\n        UserInfo storage _userInfo = userInfo[msg.sender][_poolIndex];\n        uint128 currentDay = getCurrentDay();\n        if (_amount + _userInfo.userDeposit < _pool.minDeposit) {\n            revert NeedMoreAmount();\n        }\n        if (_userInfo.userDeposit + _amount > _pool.maxDeposit) {\n            revert AmountOverPoolLimits();\n        }\n        if (_pool.totalDeposited + _amount > _pool.maxPoolAmount) {\n            revert AmountOverPoolLimits();\n        }\n\n        if ((currentDay + _pool.lockPeriod) > _pool.endDay) {\n            revert TooLate();\n        }\n\n        _pool.token.transferFrom(msg.sender, address(this), _amount);\n        if (_userInfo.userDeposit != 0) {\n            (uint128 lockDays, uint128 unlockDays) = getMultiplier(\n                _userInfo.lastDayActionSec,\n                _pool.endDay,\n                _pool.lockPeriod\n            );\n            uint128 lockInterest = _userInfo.boost\n                ? ((_userInfo.userDeposit * _pool.boostDayPercent * lockDays) /\n                    (PERCENT_BASE * 86400 * 365))\n                : ((_userInfo.userDeposit * _pool.lockDayPercent * lockDays) /\n                    (PERCENT_BASE * 86400 * 365));\n            uint128 unlockInterest = ((_userInfo.userDeposit *\n                _pool.unlockDayPercent *\n                unlockDays) / (PERCENT_BASE * 86400 * 365));\n            _userInfo.accrueInterest += lockInterest + unlockInterest;\n        }\n        _userInfo.lockInTime = uint128(block.timestamp + _pool.lockPeriod);\n        _userInfo.lastDayActionSec = currentDay;\n        _userInfo.userDeposit += _amount;\n        _userInfo.boost = _pool.totalDeposited >= _pool.minBoostAmount;\n        pools[_poolIndex].totalDeposited += _amount;\n\n        emit Staked(msg.sender, _poolIndex, address(_pool.token), _amount);\n    }\n\n    ///@dev Function to withdraw tokens from a pool\n    ///@param _poolIndex pool id.\n    function withdraw(\n        uint256 _poolIndex\n    ) public nonReentrant whenNotPaused notContract {\n        if (_poolIndex >= pools.length) {\n            revert IndexOutOfBound();\n        }\n        Pool memory _pool = pools[_poolIndex];\n        UserInfo storage _userInfo = userInfo[msg.sender][_poolIndex];\n        if (_userInfo.userDeposit <= 0) {\n            revert DepositAmountZero();\n        }\n\n        (uint128 lockDays, uint128 unlockDays) = getMultiplier(\n            _userInfo.lastDayActionSec,\n            _pool.endDay,\n            _pool.lockPeriod\n        );\n        uint128 lockInterest = _userInfo.boost\n            ? ((_userInfo.userDeposit * _pool.boostDayPercent * lockDays) /\n                (PERCENT_BASE * 86400 * 365))\n            : ((_userInfo.userDeposit * _pool.lockDayPercent * lockDays) /\n                (PERCENT_BASE * 86400 * 365));\n        uint128 unlockInterest = ((_userInfo.userDeposit *\n            _pool.unlockDayPercent *\n            unlockDays) / (PERCENT_BASE * 86400 * 365));\n        uint128 totalInterest = _userInfo.accrueInterest +\n            lockInterest +\n            unlockInterest;\n        uint128 accumAmount = _userInfo.userDeposit + totalInterest;\n        uint128 currentDay = getCurrentDay();\n        uint128 days_ = currentDay - _userInfo.lastDayActionSec;\n        if (days_ < _pool.lockPeriod) {\n            revert NoWithdrawalAllowed();\n        }\n        if (_pool.token.balanceOf(address(this)) < _userInfo.userDeposit) {\n            revert InsufficientBalance();\n        }\n\n        if (_pool.token.balanceOf(rewardWallet) < totalInterest) {\n            revert InsufficientReward();\n        }\n\n        _pool.token.transfer(msg.sender, _userInfo.userDeposit);\n        _pool.token.transferFrom(rewardWallet, msg.sender, totalInterest);\n        pools[_poolIndex].totalDeposited -= _userInfo.userDeposit;\n        _userInfo.userDeposit = 0;\n        _userInfo.accrueInterest = 0;\n        _userInfo.boost = false;\n        _userInfo.lastDayActionSec = currentDay;\n        emit Withdraw(\n            msg.sender,\n            _poolIndex,\n            address(_pool.token),\n            accumAmount\n        );\n    }\n\n    /// @dev Function to stake FireToken rewards into a pool.\n    /// @param _poolIndex The index of the pool where rewards will be staked.\n    function stakeFireTokenReward(\n        uint256 _poolIndex\n    ) public nonReentrant whenNotPaused notContract {\n        if (_poolIndex >= pools.length) {\n            revert IndexOutOfBound();\n        }\n        Pool memory _pool = pools[_poolIndex];\n        UserInfo storage _userInfo = userInfo[msg.sender][_poolIndex];\n        if (_userInfo.userDeposit < 0) {\n            revert DepositAmountZero();\n        }\n        uint128 currentDay = uint128(block.timestamp);\n\n        (uint128 lockDays, uint128 unlockDays) = getMultiplier(\n            _userInfo.lastDayActionSec,\n            _pool.endDay,\n            _pool.lockPeriod\n        );\n        uint128 lockInterest = _userInfo.boost\n            ? ((_userInfo.userDeposit * _pool.boostDayPercent * lockDays) /\n                (PERCENT_BASE * 86400 * 365))\n            : ((_userInfo.userDeposit * _pool.lockDayPercent * lockDays) /\n                (PERCENT_BASE * 86400 * 365));\n        uint128 unlockInterest = ((_userInfo.userDeposit *\n            _pool.unlockDayPercent *\n            unlockDays) / (PERCENT_BASE * 86400 * 365));\n        uint128 totalInterest = _userInfo.accrueInterest +\n            lockInterest +\n            unlockInterest;\n\n        if (_pool.token.balanceOf(address(this)) < totalInterest) {\n            revert InsufficientReward();\n        }\n        _userInfo.accrueInterest = 0;\n        _userInfo.boost = _pool.totalDeposited >= _pool.minBoostAmount;\n        _userInfo.lockInTime = uint128(block.timestamp + _pool.lockPeriod);\n        _userInfo.lastDayActionSec = currentDay;\n        _userInfo.userDeposit += totalInterest;\n        pools[_poolIndex].totalDeposited += totalInterest;\n        _pool.token.transferFrom(rewardWallet, address(this), totalInterest);\n        emit RewardStaked(\n            msg.sender,\n            _poolIndex,\n            address(_pool.token),\n            totalInterest\n        );\n    }\n\n    ///@dev internal function to calculate the rewards of an user.\n    /// @param _lastDayAction last day Action of user.\n    /// @param _poolEndDay Pool end Days.\n    /// @param _poolLockPeriod Pool loking days.\n\n    function getMultiplier(\n        uint128 _lastDayAction,\n        uint128 _poolEndDay,\n        uint128 _poolLockPeriod\n    ) internal view returns (uint128 lockDays, uint128 unlockDays) {\n        uint128 currentDay = uint128(block.timestamp);\n        uint128 lockEndDay = _lastDayAction + _poolLockPeriod;\n        if (_lastDayAction == 0) return (0, 0);\n        if ((currentDay >= _lastDayAction) && (currentDay <= _poolEndDay)) {\n            if (lockEndDay < currentDay) {\n                lockDays = _poolLockPeriod;\n\n                unlockDays = currentDay - lockEndDay;\n            } else {\n                lockDays = currentDay - _lastDayAction;\n                unlockDays = 0;\n            }\n        } else if (\n            (currentDay >= _lastDayAction) &&\n            (currentDay > _poolEndDay) &&\n            (_poolEndDay >= _lastDayAction)\n        ) {\n            if (lockEndDay < _poolEndDay) {\n                lockDays = _poolLockPeriod;\n                unlockDays = _poolEndDay - lockEndDay;\n            } else {\n                lockDays = _poolEndDay - _lastDayAction;\n                unlockDays = 0;\n            }\n        } else {\n            lockDays = 0;\n            unlockDays = 0;\n        }\n    }\n}\n"
      }
    },
    "settings": {
      "optimizer": {
        "enabled": true,
        "runs": 200
      },
      "outputSelection": {
        "*": {
          "*": [
            "evm.bytecode",
            "evm.deployedBytecode",
            "devdoc",
            "userdoc",
            "metadata",
            "abi"
          ]
        }
      },
      "libraries": {}
    }
  }}