creation_sourcecode: {{
    "language": "Solidity",
    "sources": {
      "src/BawkPresale.sol": {
        "content": "// SPDX-License-Identifier: MIT\r\npragma solidity 0.8.19;\r\n\r\nimport {EnumerableSet} from \"@openzeppelin/contracts/utils/structs/EnumerableSet.sol\";\r\nimport {ReentrancyGuardUpgradeable} from \"@openzeppelin/contracts-upgradeable/security/ReentrancyGuardUpgradeable.sol\";\r\nimport {Ownable2StepUpgradeable} from \"@openzeppelin/contracts-upgradeable/access/Ownable2StepUpgradeable.sol\";\r\nimport {SafeERC20} from \"@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol\";\r\nimport {IERC20} from \"@openzeppelin/contracts/token/ERC20/IERC20.sol\";\r\nimport {PausableUpgradeable} from \"@openzeppelin/contracts-upgradeable/security/PausableUpgradeable.sol\";\r\nimport {UUPSUpgradeable} from \"@openzeppelin/contracts-upgradeable/proxy/utils/UUPSUpgradeable.sol\";\r\nimport {Math} from \"@openzeppelin/contracts/utils/math/Math.sol\";\r\nimport \"./interfaces/IBawkPresale.sol\";\r\nimport \"./interfaces/IAggregator.sol\";\r\n\r\n// import \"hardhat/console.sol\";\r\n\r\ncontract BawkPresale is\r\n    IBawkPresale,\r\n    UUPSUpgradeable,\r\n    PausableUpgradeable,\r\n    Ownable2StepUpgradeable,\r\n    ReentrancyGuardUpgradeable\r\n{\r\n    using SafeERC20 for IERC20;\r\n    using EnumerableSet for EnumerableSet.AddressSet;\r\n\r\n    uint public totalTokensSold;\r\n    uint public currentStep;\r\n\r\n    uint[21] public stageTokenAmounts;\r\n    uint[21] public stageTokenPrices;\r\n    uint8 constant maxStepIndex = 20;\r\n\r\n    IERC20 public USDTInterface;\r\n    IAggregator public aggregatorInterface;\r\n\r\n    EnumerableSet.AddressSet internal _presaleUsers;\r\n    mapping(address => uint) _userDeposits;\r\n    mapping(address => bool) public blacklist;\r\n\r\n    modifier checkSaleState(uint amount) {\r\n        require(amount > 0, \"Invalid sale amount\");\r\n        require(\r\n            amount + totalTokensSold <= stageTokenAmounts[maxStepIndex],\r\n            \"Insufficient supply\"\r\n        );\r\n        _;\r\n    }\r\n\r\n    modifier notBlacklisted() {\r\n        require(!blacklist[_msgSender()], \"You are in blacklist\");\r\n        _;\r\n    }\r\n\r\n    /// @custom:oz-upgrades-unsafe-allow constructor\r\n    constructor() {\r\n        _disableInitializers();\r\n    }\r\n\r\n    /**\r\n     * @dev Creates the contract\r\n     * @param _aggregatorInterface  - Address of Chainlink ETH/USD price feed\r\n     * @param _USDTInterface        - Address of USDT token\r\n     * @param _stageTokenAmounts    - Array of totalTokenSold limit for each step\r\n     * @param _stageTokenPrices     - Array of prices for each presale step\r\n     */\r\n    function initialize(\r\n        address _aggregatorInterface,\r\n        address _USDTInterface,\r\n        uint[21] memory _stageTokenAmounts,\r\n        uint[21] memory _stageTokenPrices\r\n    ) public virtual initializer {\r\n        __ReentrancyGuard_init();\r\n        __Ownable_init();\r\n        __Pausable_init();\r\n        require(_aggregatorInterface != address(0), \"Zero aggregator address\");\r\n        require(_USDTInterface != address(0), \"Zero USDT address\");\r\n        aggregatorInterface = IAggregator(_aggregatorInterface);\r\n        USDTInterface = IERC20(_USDTInterface);\r\n        stageTokenAmounts = _stageTokenAmounts;\r\n        stageTokenPrices = _stageTokenPrices;\r\n    }\r\n\r\n    /**\r\n     * @dev To pause the presale\r\n     */\r\n    function pause() external onlyOwner {\r\n        _pause();\r\n    }\r\n\r\n    /**\r\n     * @dev To unpause the presale\r\n     */\r\n    function unpause() external onlyOwner {\r\n        _unpause();\r\n    }\r\n\r\n    /**\r\n     * @dev To add users to blacklist\r\n     * @param _users - Array of addresses to add in blacklist\r\n     */\r\n    function addToBlacklist(address[] calldata _users) external onlyOwner {\r\n        uint usersAmount = _users.length;\r\n        uint i = 0;\r\n        while (i < usersAmount) blacklist[_users[i++]] = true;\r\n    }\r\n\r\n    /**\r\n     * @dev To remove users from blacklist\r\n     * @param _users - Array of addresses to remove from blacklist\r\n     */\r\n    function removeFromBlacklist(address[] calldata _users) external onlyOwner {\r\n        uint usersAmount = _users.length;\r\n        uint i = 0;\r\n        while (i < usersAmount) blacklist[_users[i++]] = false;\r\n    }\r\n\r\n    /**\r\n     * @dev Returns price for current step\r\n     */\r\n    function getCurrentPrice() external view returns (uint) {\r\n        return stageTokenPrices[currentStep];\r\n    }\r\n\r\n    function getCurrentStageGoal() external view returns (uint) {\r\n        uint goal;\r\n        for (uint8 i = 0; i <= currentStep; i++) {\r\n            goal +=\r\n                stageTokenPrices[i] *\r\n                (stageTokenAmounts[i] -\r\n                    ((i == 0) ? 0 : stageTokenAmounts[i - 1]));\r\n        }\r\n        return goal;\r\n    }\r\n\r\n    /**\r\n     * @dev Returns amount of tokens sold on current step\r\n     */\r\n    function getSoldOnCurrentStage()\r\n        external\r\n        view\r\n        returns (uint soldOnCurrentStage)\r\n    {\r\n        soldOnCurrentStage =\r\n            totalTokensSold -\r\n            ((currentStep == 0) ? 0 : stageTokenAmounts[currentStep - 1]);\r\n    }\r\n\r\n    /**\r\n     * @dev Returns presale last stage token amount limit\r\n     */\r\n    function getTotalPresaleAmount() external view returns (uint) {\r\n        return stageTokenAmounts[maxStepIndex];\r\n    }\r\n\r\n    /**\r\n     * @dev Returns total price of sold tokens\r\n     * @notice Value may be inaccurate, since not all tokens were sold on the beta presale\r\n     */\r\n    function totalSoldPrice() external view returns (uint) {\r\n        return _calculateInternalCost(totalTokensSold, 0, 0);\r\n    }\r\n\r\n    /**\r\n     * @dev Returns total price of sold tokens\r\n     * @param _tokenAddress - Address of token to resque\r\n     * @param _amount       - Amount of tokens to resque\r\n     */\r\n    function resqueERC20(\r\n        address _tokenAddress,\r\n        uint _amount\r\n    ) external onlyOwner {\r\n        IERC20(_tokenAddress).safeTransfer(_msgSender(), _amount);\r\n    }\r\n\r\n    /**\r\n     * @dev Returns tokens purchased by the user\r\n     * @param _user - Address of user\r\n     * @notice Takes into account the number of tokens purchased by the user on the previous presale and beta presale\r\n     */\r\n    function userDeposits(address _user) public view returns (uint) {\r\n        return _userDeposits[_user];\r\n    }\r\n\r\n    /**\r\n     * @dev To buy into a presale using ETH\r\n     * @param _amount - Amount of tokens to buy\r\n     */\r\n    function buyWithEth(\r\n        uint _amount\r\n    )\r\n        external\r\n        payable\r\n        checkSaleState(_amount)\r\n        notBlacklisted\r\n        whenNotPaused\r\n        nonReentrant\r\n    {\r\n        uint ethAmount = ethBuyHelper(_amount);\r\n        require(msg.value >= ethAmount, \"Less payment\");\r\n        _sendValue(payable(owner()), ethAmount);\r\n        uint excess = msg.value - ethAmount;\r\n        if (excess > 0) _sendValue(payable(_msgSender()), excess);\r\n        totalTokensSold += _amount;\r\n        _presaleUsers.add(_msgSender());\r\n        _userDeposits[_msgSender()] += _amount * 1e18;\r\n        uint8 stepAfterPurchase = _getStepByTotalSoldAmount();\r\n        if (stepAfterPurchase > currentStep) currentStep = stepAfterPurchase;\r\n        emit TokensBought(_msgSender(), _amount, ethAmount, block.timestamp);\r\n    }\r\n\r\n    /**\r\n     * @dev To buy into a presale using USDT\r\n     * @param _amount - Amount of tokens to buy\r\n     */\r\n    function buyWithUSDT(\r\n        uint _amount\r\n    )\r\n        external\r\n        checkSaleState(_amount)\r\n        notBlacklisted\r\n        whenNotPaused\r\n        nonReentrant\r\n        returns (bool)\r\n    {\r\n        uint usdtPrice = usdtBuyHelper(_amount);\r\n        require(\r\n            usdtPrice <= USDTInterface.allowance(_msgSender(), address(this)),\r\n            \"Not enough allowance\"\r\n        );\r\n        USDTInterface.safeTransferFrom(_msgSender(), owner(), usdtPrice);\r\n        totalTokensSold += _amount;\r\n        _presaleUsers.add(_msgSender());\r\n        _userDeposits[_msgSender()] += _amount * 1e18;\r\n        uint8 stepAfterPurchase = _getStepByTotalSoldAmount();\r\n        if (stepAfterPurchase > currentStep) currentStep = stepAfterPurchase;\r\n        emit TokensBought(_msgSender(), _amount, usdtPrice, block.timestamp);\r\n        return true;\r\n    }\r\n\r\n    /**\r\n     * @dev To get latest ETH/USD price\r\n     * @notice Return result in 1e18 format\r\n     */\r\n    function getLatestPrice() public view returns (uint) {\r\n        (, int256 price, , , ) = aggregatorInterface.latestRoundData();\r\n        return uint(price * 1e10);\r\n    }\r\n\r\n    /**\r\n     * @dev Calculate ETH price for given amount\r\n     * @param _amount - Amount of tokens to calculate price\r\n     * @notice Return result in 1e18 format\r\n     */\r\n    function ethBuyHelper(uint _amount) public view returns (uint ethAmount) {\r\n        ethAmount = (calculatePrice(_amount) * 1e18) / getLatestPrice();\r\n    }\r\n\r\n    /**\r\n     * @dev Calculate USDT price for given amount\r\n     * @param _amount - Amount of tokens to calculate price\r\n     * @notice Return result in 1e6 format\r\n     */\r\n    function usdtBuyHelper(uint _amount) public view returns (uint usdtPrice) {\r\n        usdtPrice = calculatePrice(_amount) / 1e12;\r\n    }\r\n\r\n    /**\r\n     * @dev To calculate the price in USD for given amount of tokens\r\n     * @param _amount - Amount of tokens to calculate price\r\n     * @notice Return result in 1e18 format\r\n     */\r\n    function calculatePrice(uint _amount) public view returns (uint) {\r\n        require(\r\n            _amount + totalTokensSold <= stageTokenAmounts[maxStepIndex],\r\n            \"Insufficient token amount.\"\r\n        );\r\n        return _calculateInternalCost(_amount, currentStep, totalTokensSold);\r\n    }\r\n\r\n    /**\r\n     * @dev For sending ETH from contract\r\n     * @param _recipient - Recipient address\r\n     * @param _weiAmount - Amount of ETH to send in wei\r\n     */\r\n    function _sendValue(address payable _recipient, uint _weiAmount) internal {\r\n        require(address(this).balance >= _weiAmount, \"Low balance\");\r\n        (bool success, ) = _recipient.call{value: _weiAmount}(\"\");\r\n        require(success, \"ETH Payment failed\");\r\n    }\r\n\r\n    /**\r\n     * @dev Recursively calculate cost for specified conditions\r\n     * @param _amount          - Amount of tokens to calculate price\r\n     * @param _currentStep     - Starting step to calculate price\r\n     * @param _totalTokensSold - Starting total token sold amount to calculate price\r\n     */\r\n    function _calculateInternalCost(\r\n        uint _amount,\r\n        uint _currentStep,\r\n        uint _totalTokensSold\r\n    ) internal view returns (uint cost) {\r\n        uint currentPrice = stageTokenPrices[_currentStep];\r\n        uint currentAmount = stageTokenAmounts[_currentStep];\r\n        if (_totalTokensSold + _amount <= currentAmount) {\r\n            cost = _amount * currentPrice;\r\n        } else {\r\n            uint currentStageAmount = currentAmount - _totalTokensSold;\r\n            uint nextStageAmount = _amount - currentStageAmount;\r\n            cost =\r\n                currentStageAmount *\r\n                currentPrice +\r\n                _calculateInternalCost(\r\n                    nextStageAmount,\r\n                    _currentStep + 1,\r\n                    currentAmount\r\n                );\r\n        }\r\n\r\n        return cost;\r\n    }\r\n\r\n    /**\r\n     * @dev Calculate current step amount from total tokens sold amount\r\n     */\r\n    function _getStepByTotalSoldAmount() internal view returns (uint8) {\r\n        uint8 stepIndex = maxStepIndex;\r\n        while (stepIndex > 0) {\r\n            if (stageTokenAmounts[stepIndex - 1] < totalTokensSold) break;\r\n            stepIndex -= 1;\r\n        }\r\n        return stepIndex;\r\n    }\r\n\r\n    // required by the OZ UUPS module\r\n    function _authorizeUpgrade(address) internal override onlyOwner {}\r\n\r\n    // =======\r\n    // Getters\r\n    // =======\r\n\r\n    /// @notice Get the number of users who participated in the presale\r\n    /// @return Length of _presaleUsers\r\n    function getPresaleUsersCount() external view returns (uint) {\r\n        return _presaleUsers.length();\r\n    }\r\n\r\n    /// @notice Get the addresses of users who participated in the presale within a specific range\r\n    /// @param _fromIdx Start index of the desired range\r\n    /// @param _toIdx End index of the desired range\r\n    /// @return partOfPresaleUsers Array of addresses of the presale\r\n    function getPresaleUsers(\r\n        uint _fromIdx,\r\n        uint _toIdx\r\n    ) external view returns (address[] memory partOfPresaleUsers) {\r\n        _toIdx = Math.min(_toIdx, _presaleUsers.length());\r\n        uint range = _toIdx - _fromIdx;\r\n        partOfPresaleUsers = new address[](range);\r\n        for (uint i = 0; i < range; i++) {\r\n            partOfPresaleUsers[i] = _presaleUsers.at(i + _fromIdx);\r\n        }\r\n    }\r\n\r\n    uint[50] private __gap;\r\n}\r\n"
      },
      "lib/openzeppelin-contracts/contracts/utils/structs/EnumerableSet.sol": {
        "content": "// SPDX-License-Identifier: MIT\r\n// OpenZeppelin Contracts (last updated v4.8.0) (utils/structs/EnumerableSet.sol)\r\n// This file was procedurally generated from scripts/generate/templates/EnumerableSet.js.\r\n\r\npragma solidity ^0.8.0;\r\n\r\n/**\r\n * @dev Library for managing\r\n * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive\r\n * types.\r\n *\r\n * Sets have the following properties:\r\n *\r\n * - Elements are added, removed, and checked for existence in constant time\r\n * (O(1)).\r\n * - Elements are enumerated in O(n). No guarantees are made on the ordering.\r\n *\r\n * ```\r\n * contract Example {\r\n *     // Add the library methods\r\n *     using EnumerableSet for EnumerableSet.AddressSet;\r\n *\r\n *     // Declare a set state variable\r\n *     EnumerableSet.AddressSet private mySet;\r\n * }\r\n * ```\r\n *\r\n * As of v3.3.0, sets of type `bytes32` (`Bytes32Set`), `address` (`AddressSet`)\r\n * and `uint256` (`UintSet`) are supported.\r\n *\r\n * [WARNING]\r\n * ====\r\n * Trying to delete such a structure from storage will likely result in data corruption, rendering the structure\r\n * unusable.\r\n * See https://github.com/ethereum/solidity/pull/11843[ethereum/solidity#11843] for more info.\r\n *\r\n * In order to clean an EnumerableSet, you can either remove all elements one by one or create a fresh instance using an\r\n * array of EnumerableSet.\r\n * ====\r\n */\r\nlibrary EnumerableSet {\r\n    // To implement this library for multiple types with as little code\r\n    // repetition as possible, we write it in terms of a generic Set type with\r\n    // bytes32 values.\r\n    // The Set implementation uses private functions, and user-facing\r\n    // implementations (such as AddressSet) are just wrappers around the\r\n    // underlying Set.\r\n    // This means that we can only create new EnumerableSets for types that fit\r\n    // in bytes32.\r\n\r\n    struct Set {\r\n        // Storage of set values\r\n        bytes32[] _values;\r\n        // Position of the value in the `values` array, plus 1 because index 0\r\n        // means a value is not in the set.\r\n        mapping(bytes32 => uint256) _indexes;\r\n    }\r\n\r\n    /**\r\n     * @dev Add a value to a set. O(1).\r\n     *\r\n     * Returns true if the value was added to the set, that is if it was not\r\n     * already present.\r\n     */\r\n    function _add(Set storage set, bytes32 value) private returns (bool) {\r\n        if (!_contains(set, value)) {\r\n            set._values.push(value);\r\n            // The value is stored at length-1, but we add 1 to all indexes\r\n            // and use 0 as a sentinel value\r\n            set._indexes[value] = set._values.length;\r\n            return true;\r\n        } else {\r\n            return false;\r\n        }\r\n    }\r\n\r\n    /**\r\n     * @dev Removes a value from a set. O(1).\r\n     *\r\n     * Returns true if the value was removed from the set, that is if it was\r\n     * present.\r\n     */\r\n    function _remove(Set storage set, bytes32 value) private returns (bool) {\r\n        // We read and store the value's index to prevent multiple reads from the same storage slot\r\n        uint256 valueIndex = set._indexes[value];\r\n\r\n        if (valueIndex != 0) {\r\n            // Equivalent to contains(set, value)\r\n            // To delete an element from the _values array in O(1), we swap the element to delete with the last one in\r\n            // the array, and then remove the last element (sometimes called as 'swap and pop').\r\n            // This modifies the order of the array, as noted in {at}.\r\n\r\n            uint256 toDeleteIndex = valueIndex - 1;\r\n            uint256 lastIndex = set._values.length - 1;\r\n\r\n            if (lastIndex != toDeleteIndex) {\r\n                bytes32 lastValue = set._values[lastIndex];\r\n\r\n                // Move the last value to the index where the value to delete is\r\n                set._values[toDeleteIndex] = lastValue;\r\n                // Update the index for the moved value\r\n                set._indexes[lastValue] = valueIndex; // Replace lastValue's index to valueIndex\r\n            }\r\n\r\n            // Delete the slot where the moved value was stored\r\n            set._values.pop();\r\n\r\n            // Delete the index for the deleted slot\r\n            delete set._indexes[value];\r\n\r\n            return true;\r\n        } else {\r\n            return false;\r\n        }\r\n    }\r\n\r\n    /**\r\n     * @dev Returns true if the value is in the set. O(1).\r\n     */\r\n    function _contains(Set storage set, bytes32 value) private view returns (bool) {\r\n        return set._indexes[value] != 0;\r\n    }\r\n\r\n    /**\r\n     * @dev Returns the number of values on the set. O(1).\r\n     */\r\n    function _length(Set storage set) private view returns (uint256) {\r\n        return set._values.length;\r\n    }\r\n\r\n    /**\r\n     * @dev Returns the value stored at position `index` in the set. O(1).\r\n     *\r\n     * Note that there are no guarantees on the ordering of values inside the\r\n     * array, and it may change when more values are added or removed.\r\n     *\r\n     * Requirements:\r\n     *\r\n     * - `index` must be strictly less than {length}.\r\n     */\r\n    function _at(Set storage set, uint256 index) private view returns (bytes32) {\r\n        return set._values[index];\r\n    }\r\n\r\n    /**\r\n     * @dev Return the entire set in an array\r\n     *\r\n     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed\r\n     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that\r\n     * this function has an unbounded cost, and using it as part of a state-changing function may render the function\r\n     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.\r\n     */\r\n    function _values(Set storage set) private view returns (bytes32[] memory) {\r\n        return set._values;\r\n    }\r\n\r\n    // Bytes32Set\r\n\r\n    struct Bytes32Set {\r\n        Set _inner;\r\n    }\r\n\r\n    /**\r\n     * @dev Add a value to a set. O(1).\r\n     *\r\n     * Returns true if the value was added to the set, that is if it was not\r\n     * already present.\r\n     */\r\n    function add(Bytes32Set storage set, bytes32 value) internal returns (bool) {\r\n        return _add(set._inner, value);\r\n    }\r\n\r\n    /**\r\n     * @dev Removes a value from a set. O(1).\r\n     *\r\n     * Returns true if the value was removed from the set, that is if it was\r\n     * present.\r\n     */\r\n    function remove(Bytes32Set storage set, bytes32 value) internal returns (bool) {\r\n        return _remove(set._inner, value);\r\n    }\r\n\r\n    /**\r\n     * @dev Returns true if the value is in the set. O(1).\r\n     */\r\n    function contains(Bytes32Set storage set, bytes32 value) internal view returns (bool) {\r\n        return _contains(set._inner, value);\r\n    }\r\n\r\n    /**\r\n     * @dev Returns the number of values in the set. O(1).\r\n     */\r\n    function length(Bytes32Set storage set) internal view returns (uint256) {\r\n        return _length(set._inner);\r\n    }\r\n\r\n    /**\r\n     * @dev Returns the value stored at position `index` in the set. O(1).\r\n     *\r\n     * Note that there are no guarantees on the ordering of values inside the\r\n     * array, and it may change when more values are added or removed.\r\n     *\r\n     * Requirements:\r\n     *\r\n     * - `index` must be strictly less than {length}.\r\n     */\r\n    function at(Bytes32Set storage set, uint256 index) internal view returns (bytes32) {\r\n        return _at(set._inner, index);\r\n    }\r\n\r\n    /**\r\n     * @dev Return the entire set in an array\r\n     *\r\n     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed\r\n     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that\r\n     * this function has an unbounded cost, and using it as part of a state-changing function may render the function\r\n     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.\r\n     */\r\n    function values(Bytes32Set storage set) internal view returns (bytes32[] memory) {\r\n        bytes32[] memory store = _values(set._inner);\r\n        bytes32[] memory result;\r\n\r\n        /// @solidity memory-safe-assembly\r\n        assembly {\r\n            result := store\r\n        }\r\n\r\n        return result;\r\n    }\r\n\r\n    // AddressSet\r\n\r\n    struct AddressSet {\r\n        Set _inner;\r\n    }\r\n\r\n    /**\r\n     * @dev Add a value to a set. O(1).\r\n     *\r\n     * Returns true if the value was added to the set, that is if it was not\r\n     * already present.\r\n     */\r\n    function add(AddressSet storage set, address value) internal returns (bool) {\r\n        return _add(set._inner, bytes32(uint256(uint160(value))));\r\n    }\r\n\r\n    /**\r\n     * @dev Removes a value from a set. O(1).\r\n     *\r\n     * Returns true if the value was removed from the set, that is if it was\r\n     * present.\r\n     */\r\n    function remove(AddressSet storage set, address value) internal returns (bool) {\r\n        return _remove(set._inner, bytes32(uint256(uint160(value))));\r\n    }\r\n\r\n    /**\r\n     * @dev Returns true if the value is in the set. O(1).\r\n     */\r\n    function contains(AddressSet storage set, address value) internal view returns (bool) {\r\n        return _contains(set._inner, bytes32(uint256(uint160(value))));\r\n    }\r\n\r\n    /**\r\n     * @dev Returns the number of values in the set. O(1).\r\n     */\r\n    function length(AddressSet storage set) internal view returns (uint256) {\r\n        return _length(set._inner);\r\n    }\r\n\r\n    /**\r\n     * @dev Returns the value stored at position `index` in the set. O(1).\r\n     *\r\n     * Note that there are no guarantees on the ordering of values inside the\r\n     * array, and it may change when more values are added or removed.\r\n     *\r\n     * Requirements:\r\n     *\r\n     * - `index` must be strictly less than {length}.\r\n     */\r\n    function at(AddressSet storage set, uint256 index) internal view returns (address) {\r\n        return address(uint160(uint256(_at(set._inner, index))));\r\n    }\r\n\r\n    /**\r\n     * @dev Return the entire set in an array\r\n     *\r\n     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed\r\n     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that\r\n     * this function has an unbounded cost, and using it as part of a state-changing function may render the function\r\n     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.\r\n     */\r\n    function values(AddressSet storage set) internal view returns (address[] memory) {\r\n        bytes32[] memory store = _values(set._inner);\r\n        address[] memory result;\r\n\r\n        /// @solidity memory-safe-assembly\r\n        assembly {\r\n            result := store\r\n        }\r\n\r\n        return result;\r\n    }\r\n\r\n    // UintSet\r\n\r\n    struct UintSet {\r\n        Set _inner;\r\n    }\r\n\r\n    /**\r\n     * @dev Add a value to a set. O(1).\r\n     *\r\n     * Returns true if the value was added to the set, that is if it was not\r\n     * already present.\r\n     */\r\n    function add(UintSet storage set, uint256 value) internal returns (bool) {\r\n        return _add(set._inner, bytes32(value));\r\n    }\r\n\r\n    /**\r\n     * @dev Removes a value from a set. O(1).\r\n     *\r\n     * Returns true if the value was removed from the set, that is if it was\r\n     * present.\r\n     */\r\n    function remove(UintSet storage set, uint256 value) internal returns (bool) {\r\n        return _remove(set._inner, bytes32(value));\r\n    }\r\n\r\n    /**\r\n     * @dev Returns true if the value is in the set. O(1).\r\n     */\r\n    function contains(UintSet storage set, uint256 value) internal view returns (bool) {\r\n        return _contains(set._inner, bytes32(value));\r\n    }\r\n\r\n    /**\r\n     * @dev Returns the number of values in the set. O(1).\r\n     */\r\n    function length(UintSet storage set) internal view returns (uint256) {\r\n        return _length(set._inner);\r\n    }\r\n\r\n    /**\r\n     * @dev Returns the value stored at position `index` in the set. O(1).\r\n     *\r\n     * Note that there are no guarantees on the ordering of values inside the\r\n     * array, and it may change when more values are added or removed.\r\n     *\r\n     * Requirements:\r\n     *\r\n     * - `index` must be strictly less than {length}.\r\n     */\r\n    function at(UintSet storage set, uint256 index) internal view returns (uint256) {\r\n        return uint256(_at(set._inner, index));\r\n    }\r\n\r\n    /**\r\n     * @dev Return the entire set in an array\r\n     *\r\n     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed\r\n     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that\r\n     * this function has an unbounded cost, and using it as part of a state-changing function may render the function\r\n     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.\r\n     */\r\n    function values(UintSet storage set) internal view returns (uint256[] memory) {\r\n        bytes32[] memory store = _values(set._inner);\r\n        uint256[] memory result;\r\n\r\n        /// @solidity memory-safe-assembly\r\n        assembly {\r\n            result := store\r\n        }\r\n\r\n        return result;\r\n    }\r\n}\r\n"
      },
      "lib/openzeppelin-contracts-upgradeable/contracts/security/ReentrancyGuardUpgradeable.sol": {
        "content": "// SPDX-License-Identifier: MIT\r\n// OpenZeppelin Contracts (last updated v4.8.0) (security/ReentrancyGuard.sol)\r\n\r\npragma solidity ^0.8.0;\r\nimport \"../proxy/utils/Initializable.sol\";\r\n\r\n/**\r\n * @dev Contract module that helps prevent reentrant calls to a function.\r\n *\r\n * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier\r\n * available, which can be applied to functions to make sure there are no nested\r\n * (reentrant) calls to them.\r\n *\r\n * Note that because there is a single `nonReentrant` guard, functions marked as\r\n * `nonReentrant` may not call one another. This can be worked around by making\r\n * those functions `private`, and then adding `external` `nonReentrant` entry\r\n * points to them.\r\n *\r\n * TIP: If you would like to learn more about reentrancy and alternative ways\r\n * to protect against it, check out our blog post\r\n * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].\r\n */\r\nabstract contract ReentrancyGuardUpgradeable is Initializable {\r\n    // Booleans are more expensive than uint256 or any type that takes up a full\r\n    // word because each write operation emits an extra SLOAD to first read the\r\n    // slot's contents, replace the bits taken up by the boolean, and then write\r\n    // back. This is the compiler's defense against contract upgrades and\r\n    // pointer aliasing, and it cannot be disabled.\r\n\r\n    // The values being non-zero value makes deployment a bit more expensive,\r\n    // but in exchange the refund on every call to nonReentrant will be lower in\r\n    // amount. Since refunds are capped to a percentage of the total\r\n    // transaction's gas, it is best to keep them low in cases like this one, to\r\n    // increase the likelihood of the full refund coming into effect.\r\n    uint256 private constant _NOT_ENTERED = 1;\r\n    uint256 private constant _ENTERED = 2;\r\n\r\n    uint256 private _status;\r\n\r\n    function __ReentrancyGuard_init() internal onlyInitializing {\r\n        __ReentrancyGuard_init_unchained();\r\n    }\r\n\r\n    function __ReentrancyGuard_init_unchained() internal onlyInitializing {\r\n        _status = _NOT_ENTERED;\r\n    }\r\n\r\n    /**\r\n     * @dev Prevents a contract from calling itself, directly or indirectly.\r\n     * Calling a `nonReentrant` function from another `nonReentrant`\r\n     * function is not supported. It is possible to prevent this from happening\r\n     * by making the `nonReentrant` function external, and making it call a\r\n     * `private` function that does the actual work.\r\n     */\r\n    modifier nonReentrant() {\r\n        _nonReentrantBefore();\r\n        _;\r\n        _nonReentrantAfter();\r\n    }\r\n\r\n    function _nonReentrantBefore() private {\r\n        // On the first call to nonReentrant, _status will be _NOT_ENTERED\r\n        require(_status != _ENTERED, \"ReentrancyGuard: reentrant call\");\r\n\r\n        // Any calls to nonReentrant after this point will fail\r\n        _status = _ENTERED;\r\n    }\r\n\r\n    function _nonReentrantAfter() private {\r\n        // By storing the original value once again, a refund is triggered (see\r\n        // https://eips.ethereum.org/EIPS/eip-2200)\r\n        _status = _NOT_ENTERED;\r\n    }\r\n\r\n    /**\r\n     * @dev This empty reserved space is put in place to allow future versions to add new\r\n     * variables without shifting down storage in the inheritance chain.\r\n     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps\r\n     */\r\n    uint256[49] private __gap;\r\n}\r\n"
      },
      "lib/openzeppelin-contracts-upgradeable/contracts/access/Ownable2StepUpgradeable.sol": {
        "content": "// SPDX-License-Identifier: MIT\r\n// OpenZeppelin Contracts (last updated v4.8.0) (access/Ownable2Step.sol)\r\n\r\npragma solidity ^0.8.0;\r\n\r\nimport \"./OwnableUpgradeable.sol\";\r\nimport \"../proxy/utils/Initializable.sol\";\r\n\r\n/**\r\n * @dev Contract module which provides access control mechanism, where\r\n * there is an account (an owner) that can be granted exclusive access to\r\n * specific functions.\r\n *\r\n * By default, the owner account will be the one that deploys the contract. This\r\n * can later be changed with {transferOwnership} and {acceptOwnership}.\r\n *\r\n * This module is used through inheritance. It will make available all functions\r\n * from parent (Ownable).\r\n */\r\nabstract contract Ownable2StepUpgradeable is Initializable, OwnableUpgradeable {\r\n    function __Ownable2Step_init() internal onlyInitializing {\r\n        __Ownable_init_unchained();\r\n    }\r\n\r\n    function __Ownable2Step_init_unchained() internal onlyInitializing {\r\n    }\r\n    address private _pendingOwner;\r\n\r\n    event OwnershipTransferStarted(address indexed previousOwner, address indexed newOwner);\r\n\r\n    /**\r\n     * @dev Returns the address of the pending owner.\r\n     */\r\n    function pendingOwner() public view virtual returns (address) {\r\n        return _pendingOwner;\r\n    }\r\n\r\n    /**\r\n     * @dev Starts the ownership transfer of the contract to a new account. Replaces the pending transfer if there is one.\r\n     * Can only be called by the current owner.\r\n     */\r\n    function transferOwnership(address newOwner) public virtual override onlyOwner {\r\n        _pendingOwner = newOwner;\r\n        emit OwnershipTransferStarted(owner(), newOwner);\r\n    }\r\n\r\n    /**\r\n     * @dev Transfers ownership of the contract to a new account (`newOwner`) and deletes any pending owner.\r\n     * Internal function without access restriction.\r\n     */\r\n    function _transferOwnership(address newOwner) internal virtual override {\r\n        delete _pendingOwner;\r\n        super._transferOwnership(newOwner);\r\n    }\r\n\r\n    /**\r\n     * @dev The new owner accepts the ownership transfer.\r\n     */\r\n    function acceptOwnership() external {\r\n        address sender = _msgSender();\r\n        require(pendingOwner() == sender, \"Ownable2Step: caller is not the new owner\");\r\n        _transferOwnership(sender);\r\n    }\r\n\r\n    /**\r\n     * @dev This empty reserved space is put in place to allow future versions to add new\r\n     * variables without shifting down storage in the inheritance chain.\r\n     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps\r\n     */\r\n    uint256[49] private __gap;\r\n}\r\n"
      },
      "lib/openzeppelin-contracts/contracts/token/ERC20/utils/SafeERC20.sol": {
        "content": "// SPDX-License-Identifier: MIT\r\n// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC20/utils/SafeERC20.sol)\r\n\r\npragma solidity ^0.8.0;\r\n\r\nimport \"../IERC20.sol\";\r\nimport \"../extensions/draft-IERC20Permit.sol\";\r\nimport \"../../../utils/Address.sol\";\r\n\r\n/**\r\n * @title SafeERC20\r\n * @dev Wrappers around ERC20 operations that throw on failure (when the token\r\n * contract returns false). Tokens that return no value (and instead revert or\r\n * throw on failure) are also supported, non-reverting calls are assumed to be\r\n * successful.\r\n * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,\r\n * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.\r\n */\r\nlibrary SafeERC20 {\r\n    using Address for address;\r\n\r\n    function safeTransfer(\r\n        IERC20 token,\r\n        address to,\r\n        uint256 value\r\n    ) internal {\r\n        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));\r\n    }\r\n\r\n    function safeTransferFrom(\r\n        IERC20 token,\r\n        address from,\r\n        address to,\r\n        uint256 value\r\n    ) internal {\r\n        _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));\r\n    }\r\n\r\n    /**\r\n     * @dev Deprecated. This function has issues similar to the ones found in\r\n     * {IERC20-approve}, and its usage is discouraged.\r\n     *\r\n     * Whenever possible, use {safeIncreaseAllowance} and\r\n     * {safeDecreaseAllowance} instead.\r\n     */\r\n    function safeApprove(\r\n        IERC20 token,\r\n        address spender,\r\n        uint256 value\r\n    ) internal {\r\n        // safeApprove should only be called when setting an initial allowance,\r\n        // or when resetting it to zero. To increase and decrease it, use\r\n        // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'\r\n        require(\r\n            (value == 0) || (token.allowance(address(this), spender) == 0),\r\n            \"SafeERC20: approve from non-zero to non-zero allowance\"\r\n        );\r\n        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));\r\n    }\r\n\r\n    function safeIncreaseAllowance(\r\n        IERC20 token,\r\n        address spender,\r\n        uint256 value\r\n    ) internal {\r\n        uint256 newAllowance = token.allowance(address(this), spender) + value;\r\n        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));\r\n    }\r\n\r\n    function safeDecreaseAllowance(\r\n        IERC20 token,\r\n        address spender,\r\n        uint256 value\r\n    ) internal {\r\n        unchecked {\r\n            uint256 oldAllowance = token.allowance(address(this), spender);\r\n            require(oldAllowance >= value, \"SafeERC20: decreased allowance below zero\");\r\n            uint256 newAllowance = oldAllowance - value;\r\n            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));\r\n        }\r\n    }\r\n\r\n    function safePermit(\r\n        IERC20Permit token,\r\n        address owner,\r\n        address spender,\r\n        uint256 value,\r\n        uint256 deadline,\r\n        uint8 v,\r\n        bytes32 r,\r\n        bytes32 s\r\n    ) internal {\r\n        uint256 nonceBefore = token.nonces(owner);\r\n        token.permit(owner, spender, value, deadline, v, r, s);\r\n        uint256 nonceAfter = token.nonces(owner);\r\n        require(nonceAfter == nonceBefore + 1, \"SafeERC20: permit did not succeed\");\r\n    }\r\n\r\n    /**\r\n     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement\r\n     * on the return value: the return value is optional (but if data is returned, it must not be false).\r\n     * @param token The token targeted by the call.\r\n     * @param data The call data (encoded using abi.encode or one of its variants).\r\n     */\r\n    function _callOptionalReturn(IERC20 token, bytes memory data) private {\r\n        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since\r\n        // we're implementing it ourselves. We use {Address-functionCall} to perform this call, which verifies that\r\n        // the target address contains contract code and also asserts for success in the low-level call.\r\n\r\n        bytes memory returndata = address(token).functionCall(data, \"SafeERC20: low-level call failed\");\r\n        if (returndata.length > 0) {\r\n            // Return data is optional\r\n            require(abi.decode(returndata, (bool)), \"SafeERC20: ERC20 operation did not succeed\");\r\n        }\r\n    }\r\n}\r\n"
      },
      "lib/openzeppelin-contracts/contracts/token/ERC20/IERC20.sol": {
        "content": "// SPDX-License-Identifier: MIT\r\n// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)\r\n\r\npragma solidity ^0.8.0;\r\n\r\n/**\r\n * @dev Interface of the ERC20 standard as defined in the EIP.\r\n */\r\ninterface IERC20 {\r\n    /**\r\n     * @dev Emitted when `value` tokens are moved from one account (`from`) to\r\n     * another (`to`).\r\n     *\r\n     * Note that `value` may be zero.\r\n     */\r\n    event Transfer(address indexed from, address indexed to, uint256 value);\r\n\r\n    /**\r\n     * @dev Emitted when the allowance of a `spender` for an `owner` is set by\r\n     * a call to {approve}. `value` is the new allowance.\r\n     */\r\n    event Approval(address indexed owner, address indexed spender, uint256 value);\r\n\r\n    /**\r\n     * @dev Returns the amount of tokens in existence.\r\n     */\r\n    function totalSupply() external view returns (uint256);\r\n\r\n    /**\r\n     * @dev Returns the amount of tokens owned by `account`.\r\n     */\r\n    function balanceOf(address account) external view returns (uint256);\r\n\r\n    /**\r\n     * @dev Moves `amount` tokens from the caller's account to `to`.\r\n     *\r\n     * Returns a boolean value indicating whether the operation succeeded.\r\n     *\r\n     * Emits a {Transfer} event.\r\n     */\r\n    function transfer(address to, uint256 amount) external returns (bool);\r\n\r\n    /**\r\n     * @dev Returns the remaining number of tokens that `spender` will be\r\n     * allowed to spend on behalf of `owner` through {transferFrom}. This is\r\n     * zero by default.\r\n     *\r\n     * This value changes when {approve} or {transferFrom} are called.\r\n     */\r\n    function allowance(address owner, address spender) external view returns (uint256);\r\n\r\n    /**\r\n     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\r\n     *\r\n     * Returns a boolean value indicating whether the operation succeeded.\r\n     *\r\n     * IMPORTANT: Beware that changing an allowance with this method brings the risk\r\n     * that someone may use both the old and the new allowance by unfortunate\r\n     * transaction ordering. One possible solution to mitigate this race\r\n     * condition is to first reduce the spender's allowance to 0 and set the\r\n     * desired value afterwards:\r\n     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\r\n     *\r\n     * Emits an {Approval} event.\r\n     */\r\n    function approve(address spender, uint256 amount) external returns (bool);\r\n\r\n    /**\r\n     * @dev Moves `amount` tokens from `from` to `to` using the\r\n     * allowance mechanism. `amount` is then deducted from the caller's\r\n     * allowance.\r\n     *\r\n     * Returns a boolean value indicating whether the operation succeeded.\r\n     *\r\n     * Emits a {Transfer} event.\r\n     */\r\n    function transferFrom(\r\n        address from,\r\n        address to,\r\n        uint256 amount\r\n    ) external returns (bool);\r\n}\r\n"
      },
      "lib/openzeppelin-contracts-upgradeable/contracts/security/PausableUpgradeable.sol": {
        "content": "// SPDX-License-Identifier: MIT\r\n// OpenZeppelin Contracts (last updated v4.7.0) (security/Pausable.sol)\r\n\r\npragma solidity ^0.8.0;\r\n\r\nimport \"../utils/ContextUpgradeable.sol\";\r\nimport \"../proxy/utils/Initializable.sol\";\r\n\r\n/**\r\n * @dev Contract module which allows children to implement an emergency stop\r\n * mechanism that can be triggered by an authorized account.\r\n *\r\n * This module is used through inheritance. It will make available the\r\n * modifiers `whenNotPaused` and `whenPaused`, which can be applied to\r\n * the functions of your contract. Note that they will not be pausable by\r\n * simply including this module, only once the modifiers are put in place.\r\n */\r\nabstract contract PausableUpgradeable is Initializable, ContextUpgradeable {\r\n    /**\r\n     * @dev Emitted when the pause is triggered by `account`.\r\n     */\r\n    event Paused(address account);\r\n\r\n    /**\r\n     * @dev Emitted when the pause is lifted by `account`.\r\n     */\r\n    event Unpaused(address account);\r\n\r\n    bool private _paused;\r\n\r\n    /**\r\n     * @dev Initializes the contract in unpaused state.\r\n     */\r\n    function __Pausable_init() internal onlyInitializing {\r\n        __Pausable_init_unchained();\r\n    }\r\n\r\n    function __Pausable_init_unchained() internal onlyInitializing {\r\n        _paused = false;\r\n    }\r\n\r\n    /**\r\n     * @dev Modifier to make a function callable only when the contract is not paused.\r\n     *\r\n     * Requirements:\r\n     *\r\n     * - The contract must not be paused.\r\n     */\r\n    modifier whenNotPaused() {\r\n        _requireNotPaused();\r\n        _;\r\n    }\r\n\r\n    /**\r\n     * @dev Modifier to make a function callable only when the contract is paused.\r\n     *\r\n     * Requirements:\r\n     *\r\n     * - The contract must be paused.\r\n     */\r\n    modifier whenPaused() {\r\n        _requirePaused();\r\n        _;\r\n    }\r\n\r\n    /**\r\n     * @dev Returns true if the contract is paused, and false otherwise.\r\n     */\r\n    function paused() public view virtual returns (bool) {\r\n        return _paused;\r\n    }\r\n\r\n    /**\r\n     * @dev Throws if the contract is paused.\r\n     */\r\n    function _requireNotPaused() internal view virtual {\r\n        require(!paused(), \"Pausable: paused\");\r\n    }\r\n\r\n    /**\r\n     * @dev Throws if the contract is not paused.\r\n     */\r\n    function _requirePaused() internal view virtual {\r\n        require(paused(), \"Pausable: not paused\");\r\n    }\r\n\r\n    /**\r\n     * @dev Triggers stopped state.\r\n     *\r\n     * Requirements:\r\n     *\r\n     * - The contract must not be paused.\r\n     */\r\n    function _pause() internal virtual whenNotPaused {\r\n        _paused = true;\r\n        emit Paused(_msgSender());\r\n    }\r\n\r\n    /**\r\n     * @dev Returns to normal state.\r\n     *\r\n     * Requirements:\r\n     *\r\n     * - The contract must be paused.\r\n     */\r\n    function _unpause() internal virtual whenPaused {\r\n        _paused = false;\r\n        emit Unpaused(_msgSender());\r\n    }\r\n\r\n    /**\r\n     * @dev This empty reserved space is put in place to allow future versions to add new\r\n     * variables without shifting down storage in the inheritance chain.\r\n     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps\r\n     */\r\n    uint256[49] private __gap;\r\n}\r\n"
      },
      "lib/openzeppelin-contracts-upgradeable/contracts/proxy/utils/UUPSUpgradeable.sol": {
        "content": "// SPDX-License-Identifier: MIT\r\n// OpenZeppelin Contracts (last updated v4.8.0) (proxy/utils/UUPSUpgradeable.sol)\r\n\r\npragma solidity ^0.8.0;\r\n\r\nimport \"../../interfaces/draft-IERC1822Upgradeable.sol\";\r\nimport \"../ERC1967/ERC1967UpgradeUpgradeable.sol\";\r\nimport \"./Initializable.sol\";\r\n\r\n/**\r\n * @dev An upgradeability mechanism designed for UUPS proxies. The functions included here can perform an upgrade of an\r\n * {ERC1967Proxy}, when this contract is set as the implementation behind such a proxy.\r\n *\r\n * A security mechanism ensures that an upgrade does not turn off upgradeability accidentally, although this risk is\r\n * reinstated if the upgrade retains upgradeability but removes the security mechanism, e.g. by replacing\r\n * `UUPSUpgradeable` with a custom implementation of upgrades.\r\n *\r\n * The {_authorizeUpgrade} function must be overridden to include access restriction to the upgrade mechanism.\r\n *\r\n * _Available since v4.1._\r\n */\r\nabstract contract UUPSUpgradeable is Initializable, IERC1822ProxiableUpgradeable, ERC1967UpgradeUpgradeable {\r\n    function __UUPSUpgradeable_init() internal onlyInitializing {\r\n    }\r\n\r\n    function __UUPSUpgradeable_init_unchained() internal onlyInitializing {\r\n    }\r\n    /// @custom:oz-upgrades-unsafe-allow state-variable-immutable state-variable-assignment\r\n    address private immutable __self = address(this);\r\n\r\n    /**\r\n     * @dev Check that the execution is being performed through a delegatecall call and that the execution context is\r\n     * a proxy contract with an implementation (as defined in ERC1967) pointing to self. This should only be the case\r\n     * for UUPS and transparent proxies that are using the current contract as their implementation. Execution of a\r\n     * function through ERC1167 minimal proxies (clones) would not normally pass this test, but is not guaranteed to\r\n     * fail.\r\n     */\r\n    modifier onlyProxy() {\r\n        require(address(this) != __self, \"Function must be called through delegatecall\");\r\n        require(_getImplementation() == __self, \"Function must be called through active proxy\");\r\n        _;\r\n    }\r\n\r\n    /**\r\n     * @dev Check that the execution is not being performed through a delegate call. This allows a function to be\r\n     * callable on the implementing contract but not through proxies.\r\n     */\r\n    modifier notDelegated() {\r\n        require(address(this) == __self, \"UUPSUpgradeable: must not be called through delegatecall\");\r\n        _;\r\n    }\r\n\r\n    /**\r\n     * @dev Implementation of the ERC1822 {proxiableUUID} function. This returns the storage slot used by the\r\n     * implementation. It is used to validate the implementation's compatibility when performing an upgrade.\r\n     *\r\n     * IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks\r\n     * bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this\r\n     * function revert if invoked through a proxy. This is guaranteed by the `notDelegated` modifier.\r\n     */\r\n    function proxiableUUID() external view virtual override notDelegated returns (bytes32) {\r\n        return _IMPLEMENTATION_SLOT;\r\n    }\r\n\r\n    /**\r\n     * @dev Upgrade the implementation of the proxy to `newImplementation`.\r\n     *\r\n     * Calls {_authorizeUpgrade}.\r\n     *\r\n     * Emits an {Upgraded} event.\r\n     */\r\n    function upgradeTo(address newImplementation) external virtual onlyProxy {\r\n        _authorizeUpgrade(newImplementation);\r\n        _upgradeToAndCallUUPS(newImplementation, new bytes(0), false);\r\n    }\r\n\r\n    /**\r\n     * @dev Upgrade the implementation of the proxy to `newImplementation`, and subsequently execute the function call\r\n     * encoded in `data`.\r\n     *\r\n     * Calls {_authorizeUpgrade}.\r\n     *\r\n     * Emits an {Upgraded} event.\r\n     */\r\n    function upgradeToAndCall(address newImplementation, bytes memory data) external payable virtual onlyProxy {\r\n        _authorizeUpgrade(newImplementation);\r\n        _upgradeToAndCallUUPS(newImplementation, data, true);\r\n    }\r\n\r\n    /**\r\n     * @dev Function that should revert when `msg.sender` is not authorized to upgrade the contract. Called by\r\n     * {upgradeTo} and {upgradeToAndCall}.\r\n     *\r\n     * Normally, this function will use an xref:access.adoc[access control] modifier such as {Ownable-onlyOwner}.\r\n     *\r\n     * ```solidity\r\n     * function _authorizeUpgrade(address) internal override onlyOwner {}\r\n     * ```\r\n     */\r\n    function _authorizeUpgrade(address newImplementation) internal virtual;\r\n\r\n    /**\r\n     * @dev This empty reserved space is put in place to allow future versions to add new\r\n     * variables without shifting down storage in the inheritance chain.\r\n     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps\r\n     */\r\n    uint256[50] private __gap;\r\n}\r\n"
      },
      "lib/openzeppelin-contracts/contracts/utils/math/Math.sol": {
        "content": "// SPDX-License-Identifier: MIT\r\n// OpenZeppelin Contracts (last updated v4.8.0) (utils/math/Math.sol)\r\n\r\npragma solidity ^0.8.0;\r\n\r\n/**\r\n * @dev Standard math utilities missing in the Solidity language.\r\n */\r\nlibrary Math {\r\n    enum Rounding {\r\n        Down, // Toward negative infinity\r\n        Up, // Toward infinity\r\n        Zero // Toward zero\r\n    }\r\n\r\n    /**\r\n     * @dev Returns the largest of two numbers.\r\n     */\r\n    function max(uint256 a, uint256 b) internal pure returns (uint256) {\r\n        return a > b ? a : b;\r\n    }\r\n\r\n    /**\r\n     * @dev Returns the smallest of two numbers.\r\n     */\r\n    function min(uint256 a, uint256 b) internal pure returns (uint256) {\r\n        return a < b ? a : b;\r\n    }\r\n\r\n    /**\r\n     * @dev Returns the average of two numbers. The result is rounded towards\r\n     * zero.\r\n     */\r\n    function average(uint256 a, uint256 b) internal pure returns (uint256) {\r\n        // (a + b) / 2 can overflow.\r\n        return (a & b) + (a ^ b) / 2;\r\n    }\r\n\r\n    /**\r\n     * @dev Returns the ceiling of the division of two numbers.\r\n     *\r\n     * This differs from standard division with `/` in that it rounds up instead\r\n     * of rounding down.\r\n     */\r\n    function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {\r\n        // (a + b - 1) / b can overflow on addition, so we distribute.\r\n        return a == 0 ? 0 : (a - 1) / b + 1;\r\n    }\r\n\r\n    /**\r\n     * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0\r\n     * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv)\r\n     * with further edits by Uniswap Labs also under MIT license.\r\n     */\r\n    function mulDiv(\r\n        uint256 x,\r\n        uint256 y,\r\n        uint256 denominator\r\n    ) internal pure returns (uint256 result) {\r\n        unchecked {\r\n            // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use\r\n            // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256\r\n            // variables such that product = prod1 * 2^256 + prod0.\r\n            uint256 prod0; // Least significant 256 bits of the product\r\n            uint256 prod1; // Most significant 256 bits of the product\r\n            assembly {\r\n                let mm := mulmod(x, y, not(0))\r\n                prod0 := mul(x, y)\r\n                prod1 := sub(sub(mm, prod0), lt(mm, prod0))\r\n            }\r\n\r\n            // Handle non-overflow cases, 256 by 256 division.\r\n            if (prod1 == 0) {\r\n                return prod0 / denominator;\r\n            }\r\n\r\n            // Make sure the result is less than 2^256. Also prevents denominator == 0.\r\n            require(denominator > prod1);\r\n\r\n            ///////////////////////////////////////////////\r\n            // 512 by 256 division.\r\n            ///////////////////////////////////////////////\r\n\r\n            // Make division exact by subtracting the remainder from [prod1 prod0].\r\n            uint256 remainder;\r\n            assembly {\r\n                // Compute remainder using mulmod.\r\n                remainder := mulmod(x, y, denominator)\r\n\r\n                // Subtract 256 bit number from 512 bit number.\r\n                prod1 := sub(prod1, gt(remainder, prod0))\r\n                prod0 := sub(prod0, remainder)\r\n            }\r\n\r\n            // Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1.\r\n            // See https://cs.stackexchange.com/q/138556/92363.\r\n\r\n            // Does not overflow because the denominator cannot be zero at this stage in the function.\r\n            uint256 twos = denominator & (~denominator + 1);\r\n            assembly {\r\n                // Divide denominator by twos.\r\n                denominator := div(denominator, twos)\r\n\r\n                // Divide [prod1 prod0] by twos.\r\n                prod0 := div(prod0, twos)\r\n\r\n                // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.\r\n                twos := add(div(sub(0, twos), twos), 1)\r\n            }\r\n\r\n            // Shift in bits from prod1 into prod0.\r\n            prod0 |= prod1 * twos;\r\n\r\n            // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such\r\n            // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for\r\n            // four bits. That is, denominator * inv = 1 mod 2^4.\r\n            uint256 inverse = (3 * denominator) ^ 2;\r\n\r\n            // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works\r\n            // in modular arithmetic, doubling the correct bits in each step.\r\n            inverse *= 2 - denominator * inverse; // inverse mod 2^8\r\n            inverse *= 2 - denominator * inverse; // inverse mod 2^16\r\n            inverse *= 2 - denominator * inverse; // inverse mod 2^32\r\n            inverse *= 2 - denominator * inverse; // inverse mod 2^64\r\n            inverse *= 2 - denominator * inverse; // inverse mod 2^128\r\n            inverse *= 2 - denominator * inverse; // inverse mod 2^256\r\n\r\n            // Because the division is now exact we can divide by multiplying with the modular inverse of denominator.\r\n            // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is\r\n            // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1\r\n            // is no longer required.\r\n            result = prod0 * inverse;\r\n            return result;\r\n        }\r\n    }\r\n\r\n    /**\r\n     * @notice Calculates x * y / denominator with full precision, following the selected rounding direction.\r\n     */\r\n    function mulDiv(\r\n        uint256 x,\r\n        uint256 y,\r\n        uint256 denominator,\r\n        Rounding rounding\r\n    ) internal pure returns (uint256) {\r\n        uint256 result = mulDiv(x, y, denominator);\r\n        if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) {\r\n            result += 1;\r\n        }\r\n        return result;\r\n    }\r\n\r\n    /**\r\n     * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down.\r\n     *\r\n     * Inspired by Henry S. Warren, Jr.'s \"Hacker's Delight\" (Chapter 11).\r\n     */\r\n    function sqrt(uint256 a) internal pure returns (uint256) {\r\n        if (a == 0) {\r\n            return 0;\r\n        }\r\n\r\n        // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.\r\n        //\r\n        // We know that the \"msb\" (most significant bit) of our target number `a` is a power of 2 such that we have\r\n        // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.\r\n        //\r\n        // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`\r\n        // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`\r\n        // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`\r\n        //\r\n        // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.\r\n        uint256 result = 1 << (log2(a) >> 1);\r\n\r\n        // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,\r\n        // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at\r\n        // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision\r\n        // into the expected uint128 result.\r\n        unchecked {\r\n            result = (result + a / result) >> 1;\r\n            result = (result + a / result) >> 1;\r\n            result = (result + a / result) >> 1;\r\n            result = (result + a / result) >> 1;\r\n            result = (result + a / result) >> 1;\r\n            result = (result + a / result) >> 1;\r\n            result = (result + a / result) >> 1;\r\n            return min(result, a / result);\r\n        }\r\n    }\r\n\r\n    /**\r\n     * @notice Calculates sqrt(a), following the selected rounding direction.\r\n     */\r\n    function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {\r\n        unchecked {\r\n            uint256 result = sqrt(a);\r\n            return result + (rounding == Rounding.Up && result * result < a ? 1 : 0);\r\n        }\r\n    }\r\n\r\n    /**\r\n     * @dev Return the log in base 2, rounded down, of a positive value.\r\n     * Returns 0 if given 0.\r\n     */\r\n    function log2(uint256 value) internal pure returns (uint256) {\r\n        uint256 result = 0;\r\n        unchecked {\r\n            if (value >> 128 > 0) {\r\n                value >>= 128;\r\n                result += 128;\r\n            }\r\n            if (value >> 64 > 0) {\r\n                value >>= 64;\r\n                result += 64;\r\n            }\r\n            if (value >> 32 > 0) {\r\n                value >>= 32;\r\n                result += 32;\r\n            }\r\n            if (value >> 16 > 0) {\r\n                value >>= 16;\r\n                result += 16;\r\n            }\r\n            if (value >> 8 > 0) {\r\n                value >>= 8;\r\n                result += 8;\r\n            }\r\n            if (value >> 4 > 0) {\r\n                value >>= 4;\r\n                result += 4;\r\n            }\r\n            if (value >> 2 > 0) {\r\n                value >>= 2;\r\n                result += 2;\r\n            }\r\n            if (value >> 1 > 0) {\r\n                result += 1;\r\n            }\r\n        }\r\n        return result;\r\n    }\r\n\r\n    /**\r\n     * @dev Return the log in base 2, following the selected rounding direction, of a positive value.\r\n     * Returns 0 if given 0.\r\n     */\r\n    function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {\r\n        unchecked {\r\n            uint256 result = log2(value);\r\n            return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0);\r\n        }\r\n    }\r\n\r\n    /**\r\n     * @dev Return the log in base 10, rounded down, of a positive value.\r\n     * Returns 0 if given 0.\r\n     */\r\n    function log10(uint256 value) internal pure returns (uint256) {\r\n        uint256 result = 0;\r\n        unchecked {\r\n            if (value >= 10**64) {\r\n                value /= 10**64;\r\n                result += 64;\r\n            }\r\n            if (value >= 10**32) {\r\n                value /= 10**32;\r\n                result += 32;\r\n            }\r\n            if (value >= 10**16) {\r\n                value /= 10**16;\r\n                result += 16;\r\n            }\r\n            if (value >= 10**8) {\r\n                value /= 10**8;\r\n                result += 8;\r\n            }\r\n            if (value >= 10**4) {\r\n                value /= 10**4;\r\n                result += 4;\r\n            }\r\n            if (value >= 10**2) {\r\n                value /= 10**2;\r\n                result += 2;\r\n            }\r\n            if (value >= 10**1) {\r\n                result += 1;\r\n            }\r\n        }\r\n        return result;\r\n    }\r\n\r\n    /**\r\n     * @dev Return the log in base 10, following the selected rounding direction, of a positive value.\r\n     * Returns 0 if given 0.\r\n     */\r\n    function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {\r\n        unchecked {\r\n            uint256 result = log10(value);\r\n            return result + (rounding == Rounding.Up && 10**result < value ? 1 : 0);\r\n        }\r\n    }\r\n\r\n    /**\r\n     * @dev Return the log in base 256, rounded down, of a positive value.\r\n     * Returns 0 if given 0.\r\n     *\r\n     * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.\r\n     */\r\n    function log256(uint256 value) internal pure returns (uint256) {\r\n        uint256 result = 0;\r\n        unchecked {\r\n            if (value >> 128 > 0) {\r\n                value >>= 128;\r\n                result += 16;\r\n            }\r\n            if (value >> 64 > 0) {\r\n                value >>= 64;\r\n                result += 8;\r\n            }\r\n            if (value >> 32 > 0) {\r\n                value >>= 32;\r\n                result += 4;\r\n            }\r\n            if (value >> 16 > 0) {\r\n                value >>= 16;\r\n                result += 2;\r\n            }\r\n            if (value >> 8 > 0) {\r\n                result += 1;\r\n            }\r\n        }\r\n        return result;\r\n    }\r\n\r\n    /**\r\n     * @dev Return the log in base 10, following the selected rounding direction, of a positive value.\r\n     * Returns 0 if given 0.\r\n     */\r\n    function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {\r\n        unchecked {\r\n            uint256 result = log256(value);\r\n            return result + (rounding == Rounding.Up && 1 << (result * 8) < value ? 1 : 0);\r\n        }\r\n    }\r\n}\r\n"
      },
      "src/interfaces/IBawkPresale.sol": {
        "content": "// SPDX-License-Identifier: UNLICENSED\r\npragma solidity ^0.8.17;\r\n\r\ninterface IBawkPresale {\r\n    event TokensBought(\r\n        address indexed user,\r\n        uint256 indexed tokensBought,\r\n        uint256 amountPaid,\r\n        uint256 timestamp\r\n    );\r\n}"
      },
      "src/interfaces/IAggregator.sol": {
        "content": "// SPDX-License-Identifier: UNLICENSED\r\npragma solidity ^0.8.0;\r\n\r\ninterface IAggregator {\r\n    function latestRoundData()\r\n    external\r\n    view\r\n    returns (\r\n        uint80 roundId,\r\n        int256 answer,\r\n        uint256 startedAt,\r\n        uint256 updatedAt,\r\n        uint80 answeredInRound\r\n    );\r\n}"
      },
      "lib/openzeppelin-contracts-upgradeable/contracts/proxy/utils/Initializable.sol": {
        "content": "// SPDX-License-Identifier: MIT\r\n// OpenZeppelin Contracts (last updated v4.8.1) (proxy/utils/Initializable.sol)\r\n\r\npragma solidity ^0.8.2;\r\n\r\nimport \"../../utils/AddressUpgradeable.sol\";\r\n\r\n/**\r\n * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed\r\n * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an\r\n * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer\r\n * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.\r\n *\r\n * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be\r\n * reused. This mechanism prevents re-execution of each \"step\" but allows the creation of new initialization steps in\r\n * case an upgrade adds a module that needs to be initialized.\r\n *\r\n * For example:\r\n *\r\n * [.hljs-theme-light.nopadding]\r\n * ```\r\n * contract MyToken is ERC20Upgradeable {\r\n *     function initialize() initializer public {\r\n *         __ERC20_init(\"MyToken\", \"MTK\");\r\n *     }\r\n * }\r\n * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {\r\n *     function initializeV2() reinitializer(2) public {\r\n *         __ERC20Permit_init(\"MyToken\");\r\n *     }\r\n * }\r\n * ```\r\n *\r\n * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as\r\n * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.\r\n *\r\n * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure\r\n * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.\r\n *\r\n * [CAUTION]\r\n * ====\r\n * Avoid leaving a contract uninitialized.\r\n *\r\n * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation\r\n * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke\r\n * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:\r\n *\r\n * [.hljs-theme-light.nopadding]\r\n * ```\r\n * /// @custom:oz-upgrades-unsafe-allow constructor\r\n * constructor() {\r\n *     _disableInitializers();\r\n * }\r\n * ```\r\n * ====\r\n */\r\nabstract contract Initializable {\r\n    /**\r\n     * @dev Indicates that the contract has been initialized.\r\n     * @custom:oz-retyped-from bool\r\n     */\r\n    uint8 private _initialized;\r\n\r\n    /**\r\n     * @dev Indicates that the contract is in the process of being initialized.\r\n     */\r\n    bool private _initializing;\r\n\r\n    /**\r\n     * @dev Triggered when the contract has been initialized or reinitialized.\r\n     */\r\n    event Initialized(uint8 version);\r\n\r\n    /**\r\n     * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,\r\n     * `onlyInitializing` functions can be used to initialize parent contracts.\r\n     *\r\n     * Similar to `reinitializer(1)`, except that functions marked with `initializer` can be nested in the context of a\r\n     * constructor.\r\n     *\r\n     * Emits an {Initialized} event.\r\n     */\r\n    modifier initializer() {\r\n        bool isTopLevelCall = !_initializing;\r\n        require(\r\n            (isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1),\r\n            \"Initializable: contract is already initialized\"\r\n        );\r\n        _initialized = 1;\r\n        if (isTopLevelCall) {\r\n            _initializing = true;\r\n        }\r\n        _;\r\n        if (isTopLevelCall) {\r\n            _initializing = false;\r\n            emit Initialized(1);\r\n        }\r\n    }\r\n\r\n    /**\r\n     * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the\r\n     * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be\r\n     * used to initialize parent contracts.\r\n     *\r\n     * A reinitializer may be used after the original initialization step. This is essential to configure modules that\r\n     * are added through upgrades and that require initialization.\r\n     *\r\n     * When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`\r\n     * cannot be nested. If one is invoked in the context of another, execution will revert.\r\n     *\r\n     * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in\r\n     * a contract, executing them in the right order is up to the developer or operator.\r\n     *\r\n     * WARNING: setting the version to 255 will prevent any future reinitialization.\r\n     *\r\n     * Emits an {Initialized} event.\r\n     */\r\n    modifier reinitializer(uint8 version) {\r\n        require(!_initializing && _initialized < version, \"Initializable: contract is already initialized\");\r\n        _initialized = version;\r\n        _initializing = true;\r\n        _;\r\n        _initializing = false;\r\n        emit Initialized(version);\r\n    }\r\n\r\n    /**\r\n     * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the\r\n     * {initializer} and {reinitializer} modifiers, directly or indirectly.\r\n     */\r\n    modifier onlyInitializing() {\r\n        require(_initializing, \"Initializable: contract is not initializing\");\r\n        _;\r\n    }\r\n\r\n    /**\r\n     * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.\r\n     * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized\r\n     * to any version. It is recommended to use this to lock implementation contracts that are designed to be called\r\n     * through proxies.\r\n     *\r\n     * Emits an {Initialized} event the first time it is successfully executed.\r\n     */\r\n    function _disableInitializers() internal virtual {\r\n        require(!_initializing, \"Initializable: contract is initializing\");\r\n        if (_initialized < type(uint8).max) {\r\n            _initialized = type(uint8).max;\r\n            emit Initialized(type(uint8).max);\r\n        }\r\n    }\r\n\r\n    /**\r\n     * @dev Returns the highest version that has been initialized. See {reinitializer}.\r\n     */\r\n    function _getInitializedVersion() internal view returns (uint8) {\r\n        return _initialized;\r\n    }\r\n\r\n    /**\r\n     * @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}.\r\n     */\r\n    function _isInitializing() internal view returns (bool) {\r\n        return _initializing;\r\n    }\r\n}\r\n"
      },
      "lib/openzeppelin-contracts-upgradeable/contracts/access/OwnableUpgradeable.sol": {
        "content": "// SPDX-License-Identifier: MIT\r\n// OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)\r\n\r\npragma solidity ^0.8.0;\r\n\r\nimport \"../utils/ContextUpgradeable.sol\";\r\nimport \"../proxy/utils/Initializable.sol\";\r\n\r\n/**\r\n * @dev Contract module which provides a basic access control mechanism, where\r\n * there is an account (an owner) that can be granted exclusive access to\r\n * specific functions.\r\n *\r\n * By default, the owner account will be the one that deploys the contract. This\r\n * can later be changed with {transferOwnership}.\r\n *\r\n * This module is used through inheritance. It will make available the modifier\r\n * `onlyOwner`, which can be applied to your functions to restrict their use to\r\n * the owner.\r\n */\r\nabstract contract OwnableUpgradeable is Initializable, ContextUpgradeable {\r\n    address private _owner;\r\n\r\n    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);\r\n\r\n    /**\r\n     * @dev Initializes the contract setting the deployer as the initial owner.\r\n     */\r\n    function __Ownable_init() internal onlyInitializing {\r\n        __Ownable_init_unchained();\r\n    }\r\n\r\n    function __Ownable_init_unchained() internal onlyInitializing {\r\n        _transferOwnership(_msgSender());\r\n    }\r\n\r\n    /**\r\n     * @dev Throws if called by any account other than the owner.\r\n     */\r\n    modifier onlyOwner() {\r\n        _checkOwner();\r\n        _;\r\n    }\r\n\r\n    /**\r\n     * @dev Returns the address of the current owner.\r\n     */\r\n    function owner() public view virtual returns (address) {\r\n        return _owner;\r\n    }\r\n\r\n    /**\r\n     * @dev Throws if the sender is not the owner.\r\n     */\r\n    function _checkOwner() internal view virtual {\r\n        require(owner() == _msgSender(), \"Ownable: caller is not the owner\");\r\n    }\r\n\r\n    /**\r\n     * @dev Leaves the contract without owner. It will not be possible to call\r\n     * `onlyOwner` functions anymore. Can only be called by the current owner.\r\n     *\r\n     * NOTE: Renouncing ownership will leave the contract without an owner,\r\n     * thereby removing any functionality that is only available to the owner.\r\n     */\r\n    function renounceOwnership() public virtual onlyOwner {\r\n        _transferOwnership(address(0));\r\n    }\r\n\r\n    /**\r\n     * @dev Transfers ownership of the contract to a new account (`newOwner`).\r\n     * Can only be called by the current owner.\r\n     */\r\n    function transferOwnership(address newOwner) public virtual onlyOwner {\r\n        require(newOwner != address(0), \"Ownable: new owner is the zero address\");\r\n        _transferOwnership(newOwner);\r\n    }\r\n\r\n    /**\r\n     * @dev Transfers ownership of the contract to a new account (`newOwner`).\r\n     * Internal function without access restriction.\r\n     */\r\n    function _transferOwnership(address newOwner) internal virtual {\r\n        address oldOwner = _owner;\r\n        _owner = newOwner;\r\n        emit OwnershipTransferred(oldOwner, newOwner);\r\n    }\r\n\r\n    /**\r\n     * @dev This empty reserved space is put in place to allow future versions to add new\r\n     * variables without shifting down storage in the inheritance chain.\r\n     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps\r\n     */\r\n    uint256[49] private __gap;\r\n}\r\n"
      },
      "lib/openzeppelin-contracts/contracts/token/ERC20/extensions/draft-IERC20Permit.sol": {
        "content": "// SPDX-License-Identifier: MIT\r\n// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/draft-IERC20Permit.sol)\r\n\r\npragma solidity ^0.8.0;\r\n\r\n/**\r\n * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in\r\n * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].\r\n *\r\n * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by\r\n * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't\r\n * need to send a transaction, and thus is not required to hold Ether at all.\r\n */\r\ninterface IERC20Permit {\r\n    /**\r\n     * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,\r\n     * given ``owner``'s signed approval.\r\n     *\r\n     * IMPORTANT: The same issues {IERC20-approve} has related to transaction\r\n     * ordering also apply here.\r\n     *\r\n     * Emits an {Approval} event.\r\n     *\r\n     * Requirements:\r\n     *\r\n     * - `spender` cannot be the zero address.\r\n     * - `deadline` must be a timestamp in the future.\r\n     * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`\r\n     * over the EIP712-formatted function arguments.\r\n     * - the signature must use ``owner``'s current nonce (see {nonces}).\r\n     *\r\n     * For more information on the signature format, see the\r\n     * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP\r\n     * section].\r\n     */\r\n    function permit(\r\n        address owner,\r\n        address spender,\r\n        uint256 value,\r\n        uint256 deadline,\r\n        uint8 v,\r\n        bytes32 r,\r\n        bytes32 s\r\n    ) external;\r\n\r\n    /**\r\n     * @dev Returns the current nonce for `owner`. This value must be\r\n     * included whenever a signature is generated for {permit}.\r\n     *\r\n     * Every successful call to {permit} increases ``owner``'s nonce by one. This\r\n     * prevents a signature from being used multiple times.\r\n     */\r\n    function nonces(address owner) external view returns (uint256);\r\n\r\n    /**\r\n     * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.\r\n     */\r\n    // solhint-disable-next-line func-name-mixedcase\r\n    function DOMAIN_SEPARATOR() external view returns (bytes32);\r\n}\r\n"
      },
      "lib/openzeppelin-contracts/contracts/utils/Address.sol": {
        "content": "// SPDX-License-Identifier: MIT\r\n// OpenZeppelin Contracts (last updated v4.8.0) (utils/Address.sol)\r\n\r\npragma solidity ^0.8.1;\r\n\r\n/**\r\n * @dev Collection of functions related to the address type\r\n */\r\nlibrary Address {\r\n    /**\r\n     * @dev Returns true if `account` is a contract.\r\n     *\r\n     * [IMPORTANT]\r\n     * ====\r\n     * It is unsafe to assume that an address for which this function returns\r\n     * false is an externally-owned account (EOA) and not a contract.\r\n     *\r\n     * Among others, `isContract` will return false for the following\r\n     * types of addresses:\r\n     *\r\n     *  - an externally-owned account\r\n     *  - a contract in construction\r\n     *  - an address where a contract will be created\r\n     *  - an address where a contract lived, but was destroyed\r\n     * ====\r\n     *\r\n     * [IMPORTANT]\r\n     * ====\r\n     * You shouldn't rely on `isContract` to protect against flash loan attacks!\r\n     *\r\n     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets\r\n     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract\r\n     * constructor.\r\n     * ====\r\n     */\r\n    function isContract(address account) internal view returns (bool) {\r\n        // This method relies on extcodesize/address.code.length, which returns 0\r\n        // for contracts in construction, since the code is only stored at the end\r\n        // of the constructor execution.\r\n\r\n        return account.code.length > 0;\r\n    }\r\n\r\n    /**\r\n     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\r\n     * `recipient`, forwarding all available gas and reverting on errors.\r\n     *\r\n     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\r\n     * of certain opcodes, possibly making contracts go over the 2300 gas limit\r\n     * imposed by `transfer`, making them unable to receive funds via\r\n     * `transfer`. {sendValue} removes this limitation.\r\n     *\r\n     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].\r\n     *\r\n     * IMPORTANT: because control is transferred to `recipient`, care must be\r\n     * taken to not create reentrancy vulnerabilities. Consider using\r\n     * {ReentrancyGuard} or the\r\n     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\r\n     */\r\n    function sendValue(address payable recipient, uint256 amount) internal {\r\n        require(address(this).balance >= amount, \"Address: insufficient balance\");\r\n\r\n        (bool success, ) = recipient.call{value: amount}(\"\");\r\n        require(success, \"Address: unable to send value, recipient may have reverted\");\r\n    }\r\n\r\n    /**\r\n     * @dev Performs a Solidity function call using a low level `call`. A\r\n     * plain `call` is an unsafe replacement for a function call: use this\r\n     * function instead.\r\n     *\r\n     * If `target` reverts with a revert reason, it is bubbled up by this\r\n     * function (like regular Solidity function calls).\r\n     *\r\n     * Returns the raw returned data. To convert to the expected return value,\r\n     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\r\n     *\r\n     * Requirements:\r\n     *\r\n     * - `target` must be a contract.\r\n     * - calling `target` with `data` must not revert.\r\n     *\r\n     * _Available since v3.1._\r\n     */\r\n    function functionCall(address target, bytes memory data) internal returns (bytes memory) {\r\n        return functionCallWithValue(target, data, 0, \"Address: low-level call failed\");\r\n    }\r\n\r\n    /**\r\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\r\n     * `errorMessage` as a fallback revert reason when `target` reverts.\r\n     *\r\n     * _Available since v3.1._\r\n     */\r\n    function functionCall(\r\n        address target,\r\n        bytes memory data,\r\n        string memory errorMessage\r\n    ) internal returns (bytes memory) {\r\n        return functionCallWithValue(target, data, 0, errorMessage);\r\n    }\r\n\r\n    /**\r\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\r\n     * but also transferring `value` wei to `target`.\r\n     *\r\n     * Requirements:\r\n     *\r\n     * - the calling contract must have an ETH balance of at least `value`.\r\n     * - the called Solidity function must be `payable`.\r\n     *\r\n     * _Available since v3.1._\r\n     */\r\n    function functionCallWithValue(\r\n        address target,\r\n        bytes memory data,\r\n        uint256 value\r\n    ) internal returns (bytes memory) {\r\n        return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\r\n    }\r\n\r\n    /**\r\n     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\r\n     * with `errorMessage` as a fallback revert reason when `target` reverts.\r\n     *\r\n     * _Available since v3.1._\r\n     */\r\n    function functionCallWithValue(\r\n        address target,\r\n        bytes memory data,\r\n        uint256 value,\r\n        string memory errorMessage\r\n    ) internal returns (bytes memory) {\r\n        require(address(this).balance >= value, \"Address: insufficient balance for call\");\r\n        (bool success, bytes memory returndata) = target.call{value: value}(data);\r\n        return verifyCallResultFromTarget(target, success, returndata, errorMessage);\r\n    }\r\n\r\n    /**\r\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\r\n     * but performing a static call.\r\n     *\r\n     * _Available since v3.3._\r\n     */\r\n    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\r\n        return functionStaticCall(target, data, \"Address: low-level static call failed\");\r\n    }\r\n\r\n    /**\r\n     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\r\n     * but performing a static call.\r\n     *\r\n     * _Available since v3.3._\r\n     */\r\n    function functionStaticCall(\r\n        address target,\r\n        bytes memory data,\r\n        string memory errorMessage\r\n    ) internal view returns (bytes memory) {\r\n        (bool success, bytes memory returndata) = target.staticcall(data);\r\n        return verifyCallResultFromTarget(target, success, returndata, errorMessage);\r\n    }\r\n\r\n    /**\r\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\r\n     * but performing a delegate call.\r\n     *\r\n     * _Available since v3.4._\r\n     */\r\n    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {\r\n        return functionDelegateCall(target, data, \"Address: low-level delegate call failed\");\r\n    }\r\n\r\n    /**\r\n     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\r\n     * but performing a delegate call.\r\n     *\r\n     * _Available since v3.4._\r\n     */\r\n    function functionDelegateCall(\r\n        address target,\r\n        bytes memory data,\r\n        string memory errorMessage\r\n    ) internal returns (bytes memory) {\r\n        (bool success, bytes memory returndata) = target.delegatecall(data);\r\n        return verifyCallResultFromTarget(target, success, returndata, errorMessage);\r\n    }\r\n\r\n    /**\r\n     * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling\r\n     * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.\r\n     *\r\n     * _Available since v4.8._\r\n     */\r\n    function verifyCallResultFromTarget(\r\n        address target,\r\n        bool success,\r\n        bytes memory returndata,\r\n        string memory errorMessage\r\n    ) internal view returns (bytes memory) {\r\n        if (success) {\r\n            if (returndata.length == 0) {\r\n                // only check isContract if the call was successful and the return data is empty\r\n                // otherwise we already know that it was a contract\r\n                require(isContract(target), \"Address: call to non-contract\");\r\n            }\r\n            return returndata;\r\n        } else {\r\n            _revert(returndata, errorMessage);\r\n        }\r\n    }\r\n\r\n    /**\r\n     * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the\r\n     * revert reason or using the provided one.\r\n     *\r\n     * _Available since v4.3._\r\n     */\r\n    function verifyCallResult(\r\n        bool success,\r\n        bytes memory returndata,\r\n        string memory errorMessage\r\n    ) internal pure returns (bytes memory) {\r\n        if (success) {\r\n            return returndata;\r\n        } else {\r\n            _revert(returndata, errorMessage);\r\n        }\r\n    }\r\n\r\n    function _revert(bytes memory returndata, string memory errorMessage) private pure {\r\n        // Look for revert reason and bubble it up if present\r\n        if (returndata.length > 0) {\r\n            // The easiest way to bubble the revert reason is using memory via assembly\r\n            /// @solidity memory-safe-assembly\r\n            assembly {\r\n                let returndata_size := mload(returndata)\r\n                revert(add(32, returndata), returndata_size)\r\n            }\r\n        } else {\r\n            revert(errorMessage);\r\n        }\r\n    }\r\n}\r\n"
      },
      "lib/openzeppelin-contracts-upgradeable/contracts/utils/ContextUpgradeable.sol": {
        "content": "// SPDX-License-Identifier: MIT\r\n// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)\r\n\r\npragma solidity ^0.8.0;\r\nimport \"../proxy/utils/Initializable.sol\";\r\n\r\n/**\r\n * @dev Provides information about the current execution context, including the\r\n * sender of the transaction and its data. While these are generally available\r\n * via msg.sender and msg.data, they should not be accessed in such a direct\r\n * manner, since when dealing with meta-transactions the account sending and\r\n * paying for execution may not be the actual sender (as far as an application\r\n * is concerned).\r\n *\r\n * This contract is only required for intermediate, library-like contracts.\r\n */\r\nabstract contract ContextUpgradeable is Initializable {\r\n    function __Context_init() internal onlyInitializing {\r\n    }\r\n\r\n    function __Context_init_unchained() internal onlyInitializing {\r\n    }\r\n    function _msgSender() internal view virtual returns (address) {\r\n        return msg.sender;\r\n    }\r\n\r\n    function _msgData() internal view virtual returns (bytes calldata) {\r\n        return msg.data;\r\n    }\r\n\r\n    /**\r\n     * @dev This empty reserved space is put in place to allow future versions to add new\r\n     * variables without shifting down storage in the inheritance chain.\r\n     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps\r\n     */\r\n    uint256[50] private __gap;\r\n}\r\n"
      },
      "lib/openzeppelin-contracts-upgradeable/contracts/interfaces/draft-IERC1822Upgradeable.sol": {
        "content": "// SPDX-License-Identifier: MIT\r\n// OpenZeppelin Contracts (last updated v4.5.0) (interfaces/draft-IERC1822.sol)\r\n\r\npragma solidity ^0.8.0;\r\n\r\n/**\r\n * @dev ERC1822: Universal Upgradeable Proxy Standard (UUPS) documents a method for upgradeability through a simplified\r\n * proxy whose upgrades are fully controlled by the current implementation.\r\n */\r\ninterface IERC1822ProxiableUpgradeable {\r\n    /**\r\n     * @dev Returns the storage slot that the proxiable contract assumes is being used to store the implementation\r\n     * address.\r\n     *\r\n     * IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks\r\n     * bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this\r\n     * function revert if invoked through a proxy.\r\n     */\r\n    function proxiableUUID() external view returns (bytes32);\r\n}\r\n"
      },
      "lib/openzeppelin-contracts-upgradeable/contracts/proxy/ERC1967/ERC1967UpgradeUpgradeable.sol": {
        "content": "// SPDX-License-Identifier: MIT\r\n// OpenZeppelin Contracts (last updated v4.8.3) (proxy/ERC1967/ERC1967Upgrade.sol)\r\n\r\npragma solidity ^0.8.2;\r\n\r\nimport \"../beacon/IBeaconUpgradeable.sol\";\r\nimport \"../../interfaces/IERC1967Upgradeable.sol\";\r\nimport \"../../interfaces/draft-IERC1822Upgradeable.sol\";\r\nimport \"../../utils/AddressUpgradeable.sol\";\r\nimport \"../../utils/StorageSlotUpgradeable.sol\";\r\nimport \"../utils/Initializable.sol\";\r\n\r\n/**\r\n * @dev This abstract contract provides getters and event emitting update functions for\r\n * https://eips.ethereum.org/EIPS/eip-1967[EIP1967] slots.\r\n *\r\n * _Available since v4.1._\r\n *\r\n * @custom:oz-upgrades-unsafe-allow delegatecall\r\n */\r\nabstract contract ERC1967UpgradeUpgradeable is Initializable, IERC1967Upgradeable {\r\n    function __ERC1967Upgrade_init() internal onlyInitializing {\r\n    }\r\n\r\n    function __ERC1967Upgrade_init_unchained() internal onlyInitializing {\r\n    }\r\n    // This is the keccak-256 hash of \"eip1967.proxy.rollback\" subtracted by 1\r\n    bytes32 private constant _ROLLBACK_SLOT = 0x4910fdfa16fed3260ed0e7147f7cc6da11a60208b5b9406d12a635614ffd9143;\r\n\r\n    /**\r\n     * @dev Storage slot with the address of the current implementation.\r\n     * This is the keccak-256 hash of \"eip1967.proxy.implementation\" subtracted by 1, and is\r\n     * validated in the constructor.\r\n     */\r\n    bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;\r\n\r\n    /**\r\n     * @dev Returns the current implementation address.\r\n     */\r\n    function _getImplementation() internal view returns (address) {\r\n        return StorageSlotUpgradeable.getAddressSlot(_IMPLEMENTATION_SLOT).value;\r\n    }\r\n\r\n    /**\r\n     * @dev Stores a new address in the EIP1967 implementation slot.\r\n     */\r\n    function _setImplementation(address newImplementation) private {\r\n        require(AddressUpgradeable.isContract(newImplementation), \"ERC1967: new implementation is not a contract\");\r\n        StorageSlotUpgradeable.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;\r\n    }\r\n\r\n    /**\r\n     * @dev Perform implementation upgrade\r\n     *\r\n     * Emits an {Upgraded} event.\r\n     */\r\n    function _upgradeTo(address newImplementation) internal {\r\n        _setImplementation(newImplementation);\r\n        emit Upgraded(newImplementation);\r\n    }\r\n\r\n    /**\r\n     * @dev Perform implementation upgrade with additional setup call.\r\n     *\r\n     * Emits an {Upgraded} event.\r\n     */\r\n    function _upgradeToAndCall(\r\n        address newImplementation,\r\n        bytes memory data,\r\n        bool forceCall\r\n    ) internal {\r\n        _upgradeTo(newImplementation);\r\n        if (data.length > 0 || forceCall) {\r\n            _functionDelegateCall(newImplementation, data);\r\n        }\r\n    }\r\n\r\n    /**\r\n     * @dev Perform implementation upgrade with security checks for UUPS proxies, and additional setup call.\r\n     *\r\n     * Emits an {Upgraded} event.\r\n     */\r\n    function _upgradeToAndCallUUPS(\r\n        address newImplementation,\r\n        bytes memory data,\r\n        bool forceCall\r\n    ) internal {\r\n        // Upgrades from old implementations will perform a rollback test. This test requires the new\r\n        // implementation to upgrade back to the old, non-ERC1822 compliant, implementation. Removing\r\n        // this special case will break upgrade paths from old UUPS implementation to new ones.\r\n        if (StorageSlotUpgradeable.getBooleanSlot(_ROLLBACK_SLOT).value) {\r\n            _setImplementation(newImplementation);\r\n        } else {\r\n            try IERC1822ProxiableUpgradeable(newImplementation).proxiableUUID() returns (bytes32 slot) {\r\n                require(slot == _IMPLEMENTATION_SLOT, \"ERC1967Upgrade: unsupported proxiableUUID\");\r\n            } catch {\r\n                revert(\"ERC1967Upgrade: new implementation is not UUPS\");\r\n            }\r\n            _upgradeToAndCall(newImplementation, data, forceCall);\r\n        }\r\n    }\r\n\r\n    /**\r\n     * @dev Storage slot with the admin of the contract.\r\n     * This is the keccak-256 hash of \"eip1967.proxy.admin\" subtracted by 1, and is\r\n     * validated in the constructor.\r\n     */\r\n    bytes32 internal constant _ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;\r\n\r\n    /**\r\n     * @dev Returns the current admin.\r\n     */\r\n    function _getAdmin() internal view returns (address) {\r\n        return StorageSlotUpgradeable.getAddressSlot(_ADMIN_SLOT).value;\r\n    }\r\n\r\n    /**\r\n     * @dev Stores a new address in the EIP1967 admin slot.\r\n     */\r\n    function _setAdmin(address newAdmin) private {\r\n        require(newAdmin != address(0), \"ERC1967: new admin is the zero address\");\r\n        StorageSlotUpgradeable.getAddressSlot(_ADMIN_SLOT).value = newAdmin;\r\n    }\r\n\r\n    /**\r\n     * @dev Changes the admin of the proxy.\r\n     *\r\n     * Emits an {AdminChanged} event.\r\n     */\r\n    function _changeAdmin(address newAdmin) internal {\r\n        emit AdminChanged(_getAdmin(), newAdmin);\r\n        _setAdmin(newAdmin);\r\n    }\r\n\r\n    /**\r\n     * @dev The storage slot of the UpgradeableBeacon contract which defines the implementation for this proxy.\r\n     * This is bytes32(uint256(keccak256('eip1967.proxy.beacon')) - 1)) and is validated in the constructor.\r\n     */\r\n    bytes32 internal constant _BEACON_SLOT = 0xa3f0ad74e5423aebfd80d3ef4346578335a9a72aeaee59ff6cb3582b35133d50;\r\n\r\n    /**\r\n     * @dev Returns the current beacon.\r\n     */\r\n    function _getBeacon() internal view returns (address) {\r\n        return StorageSlotUpgradeable.getAddressSlot(_BEACON_SLOT).value;\r\n    }\r\n\r\n    /**\r\n     * @dev Stores a new beacon in the EIP1967 beacon slot.\r\n     */\r\n    function _setBeacon(address newBeacon) private {\r\n        require(AddressUpgradeable.isContract(newBeacon), \"ERC1967: new beacon is not a contract\");\r\n        require(\r\n            AddressUpgradeable.isContract(IBeaconUpgradeable(newBeacon).implementation()),\r\n            \"ERC1967: beacon implementation is not a contract\"\r\n        );\r\n        StorageSlotUpgradeable.getAddressSlot(_BEACON_SLOT).value = newBeacon;\r\n    }\r\n\r\n    /**\r\n     * @dev Perform beacon upgrade with additional setup call. Note: This upgrades the address of the beacon, it does\r\n     * not upgrade the implementation contained in the beacon (see {UpgradeableBeacon-_setImplementation} for that).\r\n     *\r\n     * Emits a {BeaconUpgraded} event.\r\n     */\r\n    function _upgradeBeaconToAndCall(\r\n        address newBeacon,\r\n        bytes memory data,\r\n        bool forceCall\r\n    ) internal {\r\n        _setBeacon(newBeacon);\r\n        emit BeaconUpgraded(newBeacon);\r\n        if (data.length > 0 || forceCall) {\r\n            _functionDelegateCall(IBeaconUpgradeable(newBeacon).implementation(), data);\r\n        }\r\n    }\r\n\r\n    /**\r\n     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\r\n     * but performing a delegate call.\r\n     *\r\n     * _Available since v3.4._\r\n     */\r\n    function _functionDelegateCall(address target, bytes memory data) private returns (bytes memory) {\r\n        require(AddressUpgradeable.isContract(target), \"Address: delegate call to non-contract\");\r\n\r\n        // solhint-disable-next-line avoid-low-level-calls\r\n        (bool success, bytes memory returndata) = target.delegatecall(data);\r\n        return AddressUpgradeable.verifyCallResult(success, returndata, \"Address: low-level delegate call failed\");\r\n    }\r\n\r\n    /**\r\n     * @dev This empty reserved space is put in place to allow future versions to add new\r\n     * variables without shifting down storage in the inheritance chain.\r\n     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps\r\n     */\r\n    uint256[50] private __gap;\r\n}\r\n"
      },
      "lib/openzeppelin-contracts-upgradeable/contracts/utils/AddressUpgradeable.sol": {
        "content": "// SPDX-License-Identifier: MIT\r\n// OpenZeppelin Contracts (last updated v4.8.0) (utils/Address.sol)\r\n\r\npragma solidity ^0.8.1;\r\n\r\n/**\r\n * @dev Collection of functions related to the address type\r\n */\r\nlibrary AddressUpgradeable {\r\n    /**\r\n     * @dev Returns true if `account` is a contract.\r\n     *\r\n     * [IMPORTANT]\r\n     * ====\r\n     * It is unsafe to assume that an address for which this function returns\r\n     * false is an externally-owned account (EOA) and not a contract.\r\n     *\r\n     * Among others, `isContract` will return false for the following\r\n     * types of addresses:\r\n     *\r\n     *  - an externally-owned account\r\n     *  - a contract in construction\r\n     *  - an address where a contract will be created\r\n     *  - an address where a contract lived, but was destroyed\r\n     * ====\r\n     *\r\n     * [IMPORTANT]\r\n     * ====\r\n     * You shouldn't rely on `isContract` to protect against flash loan attacks!\r\n     *\r\n     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets\r\n     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract\r\n     * constructor.\r\n     * ====\r\n     */\r\n    function isContract(address account) internal view returns (bool) {\r\n        // This method relies on extcodesize/address.code.length, which returns 0\r\n        // for contracts in construction, since the code is only stored at the end\r\n        // of the constructor execution.\r\n\r\n        return account.code.length > 0;\r\n    }\r\n\r\n    /**\r\n     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\r\n     * `recipient`, forwarding all available gas and reverting on errors.\r\n     *\r\n     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\r\n     * of certain opcodes, possibly making contracts go over the 2300 gas limit\r\n     * imposed by `transfer`, making them unable to receive funds via\r\n     * `transfer`. {sendValue} removes this limitation.\r\n     *\r\n     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].\r\n     *\r\n     * IMPORTANT: because control is transferred to `recipient`, care must be\r\n     * taken to not create reentrancy vulnerabilities. Consider using\r\n     * {ReentrancyGuard} or the\r\n     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\r\n     */\r\n    function sendValue(address payable recipient, uint256 amount) internal {\r\n        require(address(this).balance >= amount, \"Address: insufficient balance\");\r\n\r\n        (bool success, ) = recipient.call{value: amount}(\"\");\r\n        require(success, \"Address: unable to send value, recipient may have reverted\");\r\n    }\r\n\r\n    /**\r\n     * @dev Performs a Solidity function call using a low level `call`. A\r\n     * plain `call` is an unsafe replacement for a function call: use this\r\n     * function instead.\r\n     *\r\n     * If `target` reverts with a revert reason, it is bubbled up by this\r\n     * function (like regular Solidity function calls).\r\n     *\r\n     * Returns the raw returned data. To convert to the expected return value,\r\n     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\r\n     *\r\n     * Requirements:\r\n     *\r\n     * - `target` must be a contract.\r\n     * - calling `target` with `data` must not revert.\r\n     *\r\n     * _Available since v3.1._\r\n     */\r\n    function functionCall(address target, bytes memory data) internal returns (bytes memory) {\r\n        return functionCallWithValue(target, data, 0, \"Address: low-level call failed\");\r\n    }\r\n\r\n    /**\r\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\r\n     * `errorMessage` as a fallback revert reason when `target` reverts.\r\n     *\r\n     * _Available since v3.1._\r\n     */\r\n    function functionCall(\r\n        address target,\r\n        bytes memory data,\r\n        string memory errorMessage\r\n    ) internal returns (bytes memory) {\r\n        return functionCallWithValue(target, data, 0, errorMessage);\r\n    }\r\n\r\n    /**\r\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\r\n     * but also transferring `value` wei to `target`.\r\n     *\r\n     * Requirements:\r\n     *\r\n     * - the calling contract must have an ETH balance of at least `value`.\r\n     * - the called Solidity function must be `payable`.\r\n     *\r\n     * _Available since v3.1._\r\n     */\r\n    function functionCallWithValue(\r\n        address target,\r\n        bytes memory data,\r\n        uint256 value\r\n    ) internal returns (bytes memory) {\r\n        return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\r\n    }\r\n\r\n    /**\r\n     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\r\n     * with `errorMessage` as a fallback revert reason when `target` reverts.\r\n     *\r\n     * _Available since v3.1._\r\n     */\r\n    function functionCallWithValue(\r\n        address target,\r\n        bytes memory data,\r\n        uint256 value,\r\n        string memory errorMessage\r\n    ) internal returns (bytes memory) {\r\n        require(address(this).balance >= value, \"Address: insufficient balance for call\");\r\n        (bool success, bytes memory returndata) = target.call{value: value}(data);\r\n        return verifyCallResultFromTarget(target, success, returndata, errorMessage);\r\n    }\r\n\r\n    /**\r\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\r\n     * but performing a static call.\r\n     *\r\n     * _Available since v3.3._\r\n     */\r\n    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\r\n        return functionStaticCall(target, data, \"Address: low-level static call failed\");\r\n    }\r\n\r\n    /**\r\n     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\r\n     * but performing a static call.\r\n     *\r\n     * _Available since v3.3._\r\n     */\r\n    function functionStaticCall(\r\n        address target,\r\n        bytes memory data,\r\n        string memory errorMessage\r\n    ) internal view returns (bytes memory) {\r\n        (bool success, bytes memory returndata) = target.staticcall(data);\r\n        return verifyCallResultFromTarget(target, success, returndata, errorMessage);\r\n    }\r\n\r\n    /**\r\n     * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling\r\n     * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.\r\n     *\r\n     * _Available since v4.8._\r\n     */\r\n    function verifyCallResultFromTarget(\r\n        address target,\r\n        bool success,\r\n        bytes memory returndata,\r\n        string memory errorMessage\r\n    ) internal view returns (bytes memory) {\r\n        if (success) {\r\n            if (returndata.length == 0) {\r\n                // only check isContract if the call was successful and the return data is empty\r\n                // otherwise we already know that it was a contract\r\n                require(isContract(target), \"Address: call to non-contract\");\r\n            }\r\n            return returndata;\r\n        } else {\r\n            _revert(returndata, errorMessage);\r\n        }\r\n    }\r\n\r\n    /**\r\n     * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the\r\n     * revert reason or using the provided one.\r\n     *\r\n     * _Available since v4.3._\r\n     */\r\n    function verifyCallResult(\r\n        bool success,\r\n        bytes memory returndata,\r\n        string memory errorMessage\r\n    ) internal pure returns (bytes memory) {\r\n        if (success) {\r\n            return returndata;\r\n        } else {\r\n            _revert(returndata, errorMessage);\r\n        }\r\n    }\r\n\r\n    function _revert(bytes memory returndata, string memory errorMessage) private pure {\r\n        // Look for revert reason and bubble it up if present\r\n        if (returndata.length > 0) {\r\n            // The easiest way to bubble the revert reason is using memory via assembly\r\n            /// @solidity memory-safe-assembly\r\n            assembly {\r\n                let returndata_size := mload(returndata)\r\n                revert(add(32, returndata), returndata_size)\r\n            }\r\n        } else {\r\n            revert(errorMessage);\r\n        }\r\n    }\r\n}\r\n"
      },
      "lib/openzeppelin-contracts-upgradeable/contracts/proxy/beacon/IBeaconUpgradeable.sol": {
        "content": "// SPDX-License-Identifier: MIT\r\n// OpenZeppelin Contracts v4.4.1 (proxy/beacon/IBeacon.sol)\r\n\r\npragma solidity ^0.8.0;\r\n\r\n/**\r\n * @dev This is the interface that {BeaconProxy} expects of its beacon.\r\n */\r\ninterface IBeaconUpgradeable {\r\n    /**\r\n     * @dev Must return an address that can be used as a delegate call target.\r\n     *\r\n     * {BeaconProxy} will check that this address is a contract.\r\n     */\r\n    function implementation() external view returns (address);\r\n}\r\n"
      },
      "lib/openzeppelin-contracts-upgradeable/contracts/interfaces/IERC1967Upgradeable.sol": {
        "content": "// SPDX-License-Identifier: MIT\r\n// OpenZeppelin Contracts (last updated v4.8.3) (interfaces/IERC1967.sol)\r\n\r\npragma solidity ^0.8.0;\r\n\r\n/**\r\n * @dev ERC-1967: Proxy Storage Slots. This interface contains the events defined in the ERC.\r\n *\r\n * _Available since v4.9._\r\n */\r\ninterface IERC1967Upgradeable {\r\n    /**\r\n     * @dev Emitted when the implementation is upgraded.\r\n     */\r\n    event Upgraded(address indexed implementation);\r\n\r\n    /**\r\n     * @dev Emitted when the admin account has changed.\r\n     */\r\n    event AdminChanged(address previousAdmin, address newAdmin);\r\n\r\n    /**\r\n     * @dev Emitted when the beacon is changed.\r\n     */\r\n    event BeaconUpgraded(address indexed beacon);\r\n}\r\n"
      },
      "lib/openzeppelin-contracts-upgradeable/contracts/utils/StorageSlotUpgradeable.sol": {
        "content": "// SPDX-License-Identifier: MIT\r\n// OpenZeppelin Contracts (last updated v4.7.0) (utils/StorageSlot.sol)\r\n\r\npragma solidity ^0.8.0;\r\n\r\n/**\r\n * @dev Library for reading and writing primitive types to specific storage slots.\r\n *\r\n * Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts.\r\n * This library helps with reading and writing to such slots without the need for inline assembly.\r\n *\r\n * The functions in this library return Slot structs that contain a `value` member that can be used to read or write.\r\n *\r\n * Example usage to set ERC1967 implementation slot:\r\n * ```\r\n * contract ERC1967 {\r\n *     bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;\r\n *\r\n *     function _getImplementation() internal view returns (address) {\r\n *         return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;\r\n *     }\r\n *\r\n *     function _setImplementation(address newImplementation) internal {\r\n *         require(Address.isContract(newImplementation), \"ERC1967: new implementation is not a contract\");\r\n *         StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;\r\n *     }\r\n * }\r\n * ```\r\n *\r\n * _Available since v4.1 for `address`, `bool`, `bytes32`, and `uint256`._\r\n */\r\nlibrary StorageSlotUpgradeable {\r\n    struct AddressSlot {\r\n        address value;\r\n    }\r\n\r\n    struct BooleanSlot {\r\n        bool value;\r\n    }\r\n\r\n    struct Bytes32Slot {\r\n        bytes32 value;\r\n    }\r\n\r\n    struct Uint256Slot {\r\n        uint256 value;\r\n    }\r\n\r\n    /**\r\n     * @dev Returns an `AddressSlot` with member `value` located at `slot`.\r\n     */\r\n    function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) {\r\n        /// @solidity memory-safe-assembly\r\n        assembly {\r\n            r.slot := slot\r\n        }\r\n    }\r\n\r\n    /**\r\n     * @dev Returns an `BooleanSlot` with member `value` located at `slot`.\r\n     */\r\n    function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) {\r\n        /// @solidity memory-safe-assembly\r\n        assembly {\r\n            r.slot := slot\r\n        }\r\n    }\r\n\r\n    /**\r\n     * @dev Returns an `Bytes32Slot` with member `value` located at `slot`.\r\n     */\r\n    function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) {\r\n        /// @solidity memory-safe-assembly\r\n        assembly {\r\n            r.slot := slot\r\n        }\r\n    }\r\n\r\n    /**\r\n     * @dev Returns an `Uint256Slot` with member `value` located at `slot`.\r\n     */\r\n    function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) {\r\n        /// @solidity memory-safe-assembly\r\n        assembly {\r\n            r.slot := slot\r\n        }\r\n    }\r\n}\r\n"
      }
    },
    "settings": {
      "remappings": [
        "forge-std/=lib/forge-std/src/",
        "ds-test/=lib/forge-std/lib/ds-test/src/",
        "@openzeppelin/contracts/=lib/openzeppelin-contracts/contracts/",
        "@openzeppelin/contracts-upgradeable/=lib/openzeppelin-contracts-upgradeable/contracts/",
        "@chainlink/contracts/=node_modules/@chainlink/contracts/",
        "@chainlink/contracts-ccip/=node_modules/@chainlink/contracts-ccip/",
        "@eth-optimism/=node_modules/@eth-optimism/",
        "openzeppelin-contracts-upgradeable/=lib/openzeppelin-contracts-upgradeable/",
        "openzeppelin-contracts/=lib/openzeppelin-contracts/",
        "forge-std/=lib/forge-std/src/",
        "@openzeppelin/contracts/=lib/openzeppelin-contracts/contracts/"
      ],
      "optimizer": {
        "enabled": true,
        "runs": 200
      },
      "metadata": {
        "useLiteralContent": false,
        "bytecodeHash": "ipfs",
        "appendCBOR": true
      },
      "outputSelection": {
        "*": {
          "*": [
            "evm.bytecode",
            "evm.deployedBytecode",
            "devdoc",
            "userdoc",
            "metadata",
            "abi"
          ]
        }
      },
      "evmVersion": "paris",
      "libraries": {}
    }
  }}