{
  "language": "Solidity",
  "settings": {
    "evmVersion": "london",
    "libraries": {},
    "metadata": {
      "bytecodeHash": "ipfs",
      "useLiteralContent": true
    },
    "optimizer": {
      "enabled": true,
      "runs": 200
    },
    "remappings": [],
    "outputSelection": {
      "*": {
        "*": [
          "evm.bytecode",
          "evm.deployedBytecode",
          "devdoc",
          "userdoc",
          "metadata",
          "abi"
        ]
      }
    }
  },
  "sources": {
    "contracts/SafeMath.sol": {
      "content": "// SPDX-License-Identifier: BSD-3-Clause\npragma solidity ^0.8.10;\n\n// From https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/math/Math.sol\n// Subject to the MIT license.\n\n/**\n * @dev Wrappers over Solidity's arithmetic operations with added overflow\n * checks.\n *\n * Arithmetic operations in Solidity wrap on overflow. This can easily result\n * in bugs, because programmers usually assume that an overflow raises an\n * error, which is the standard behavior in high level programming languages.\n * `SafeMath` restores this intuition by reverting the transaction when an\n * operation overflows.\n *\n * Using this library instead of the unchecked operations eliminates an entire\n * class of bugs, so it's recommended to use it always.\n */\nlibrary SafeMath {\n    /**\n     * @dev Returns the addition of two unsigned integers, reverting on overflow.\n     *\n     * Counterpart to Solidity's `+` operator.\n     *\n     * Requirements:\n     * - Addition cannot overflow.\n     */\n    function add(uint256 a, uint256 b) internal pure returns (uint256) {\n        uint256 c;\n        unchecked { c = a + b; }\n        require(c >= a, \"SafeMath: addition overflow\");\n\n        return c;\n    }\n\n    /**\n     * @dev Returns the addition of two unsigned integers, reverting with custom message on overflow.\n     *\n     * Counterpart to Solidity's `+` operator.\n     *\n     * Requirements:\n     * - Addition cannot overflow.\n     */\n    function add(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n        uint256 c;\n        unchecked { c = a + b; }\n        require(c >= a, errorMessage);\n\n        return c;\n    }\n\n    /**\n     * @dev Returns the subtraction of two unsigned integers, reverting on underflow (when the result is negative).\n     *\n     * Counterpart to Solidity's `-` operator.\n     *\n     * Requirements:\n     * - Subtraction cannot underflow.\n     */\n    function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n        return sub(a, b, \"SafeMath: subtraction underflow\");\n    }\n\n    /**\n     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on underflow (when the result is negative).\n     *\n     * Counterpart to Solidity's `-` operator.\n     *\n     * Requirements:\n     * - Subtraction cannot underflow.\n     */\n    function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n        require(b <= a, errorMessage);\n        uint256 c = a - b;\n\n        return c;\n    }\n\n    /**\n     * @dev Returns the multiplication of two unsigned integers, reverting on overflow.\n     *\n     * Counterpart to Solidity's `*` operator.\n     *\n     * Requirements:\n     * - Multiplication cannot overflow.\n     */\n    function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n        // Gas optimization: this is cheaper than requiring 'a' not being zero, but the\n        // benefit is lost if 'b' is also tested.\n        // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522\n        if (a == 0) {\n            return 0;\n        }\n\n        uint256 c;\n        unchecked { c = a * b; }\n        require(c / a == b, \"SafeMath: multiplication overflow\");\n\n        return c;\n    }\n\n    /**\n     * @dev Returns the multiplication of two unsigned integers, reverting on overflow.\n     *\n     * Counterpart to Solidity's `*` operator.\n     *\n     * Requirements:\n     * - Multiplication cannot overflow.\n     */\n    function mul(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n        // Gas optimization: this is cheaper than requiring 'a' not being zero, but the\n        // benefit is lost if 'b' is also tested.\n        // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522\n        if (a == 0) {\n            return 0;\n        }\n\n        uint256 c;\n        unchecked { c = a * b; }\n        require(c / a == b, errorMessage);\n\n        return c;\n    }\n\n    /**\n     * @dev Returns the integer division of two unsigned integers.\n     * Reverts on division by zero. The result is rounded towards zero.\n     *\n     * Counterpart to Solidity's `/` operator. Note: this function uses a\n     * `revert` opcode (which leaves remaining gas untouched) while Solidity\n     * uses an invalid opcode to revert (consuming all remaining gas).\n     *\n     * Requirements:\n     * - The divisor cannot be zero.\n     */\n    function div(uint256 a, uint256 b) internal pure returns (uint256) {\n        return div(a, b, \"SafeMath: division by zero\");\n    }\n\n    /**\n     * @dev Returns the integer division of two unsigned integers.\n     * Reverts with custom message on division by zero. The result is rounded towards zero.\n     *\n     * Counterpart to Solidity's `/` operator. Note: this function uses a\n     * `revert` opcode (which leaves remaining gas untouched) while Solidity\n     * uses an invalid opcode to revert (consuming all remaining gas).\n     *\n     * Requirements:\n     * - The divisor cannot be zero.\n     */\n    function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n        // Solidity only automatically asserts when dividing by 0\n        require(b > 0, errorMessage);\n        uint256 c = a / b;\n        // assert(a == b * c + a % b); // There is no case in which this doesn't hold\n\n        return c;\n    }\n\n    /**\n     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\n     * Reverts when dividing by zero.\n     *\n     * Counterpart to Solidity's `%` operator. This function uses a `revert`\n     * opcode (which leaves remaining gas untouched) while Solidity uses an\n     * invalid opcode to revert (consuming all remaining gas).\n     *\n     * Requirements:\n     * - The divisor cannot be zero.\n     */\n    function mod(uint256 a, uint256 b) internal pure returns (uint256) {\n        return mod(a, b, \"SafeMath: modulo by zero\");\n    }\n\n    /**\n     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\n     * Reverts with custom message when dividing by zero.\n     *\n     * Counterpart to Solidity's `%` operator. This function uses a `revert`\n     * opcode (which leaves remaining gas untouched) while Solidity uses an\n     * invalid opcode to revert (consuming all remaining gas).\n     *\n     * Requirements:\n     * - The divisor cannot be zero.\n     */\n    function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n        require(b != 0, errorMessage);\n        return a % b;\n    }\n}\n"
    },
    "contracts/Timelock.sol": {
      "content": "// SPDX-License-Identifier: BSD-3-Clause\npragma solidity ^0.8.10;\n\nimport \"./SafeMath.sol\";\n\ncontract Timelock {\n    using SafeMath for uint;\n\n    event NewAdmin(address indexed newAdmin);\n    event NewPendingAdmin(address indexed newPendingAdmin);\n    event NewDelay(uint indexed newDelay);\n    event CancelTransaction(bytes32 indexed txHash, address indexed target, uint value, string signature,  bytes data, uint eta);\n    event ExecuteTransaction(bytes32 indexed txHash, address indexed target, uint value, string signature,  bytes data, uint eta);\n    event QueueTransaction(bytes32 indexed txHash, address indexed target, uint value, string signature, bytes data, uint eta);\n\n    uint public constant GRACE_PERIOD = 14 days;\n    uint public constant MINIMUM_DELAY = 30 minutes;\n    uint public constant MAXIMUM_DELAY = 30 days;\n\n    address public admin;\n    address public pendingAdmin;\n    uint public delay;\n\n    mapping (bytes32 => bool) public queuedTransactions;\n\n\n    constructor(address admin_, uint delay_) public {\n        require(delay_ >= MINIMUM_DELAY, \"Timelock::constructor: Delay must exceed minimum delay.\");\n        require(delay_ <= MAXIMUM_DELAY, \"Timelock::setDelay: Delay must not exceed maximum delay.\");\n\n        admin = admin_;\n        delay = delay_;\n    }\n\n    fallback() external payable { }\n\n    function setDelay(uint delay_) public {\n        require(msg.sender == address(this), \"Timelock::setDelay: Call must come from Timelock.\");\n        require(delay_ >= MINIMUM_DELAY, \"Timelock::setDelay: Delay must exceed minimum delay.\");\n        require(delay_ <= MAXIMUM_DELAY, \"Timelock::setDelay: Delay must not exceed maximum delay.\");\n        delay = delay_;\n\n        emit NewDelay(delay);\n    }\n\n    function acceptAdmin() public {\n        require(msg.sender == pendingAdmin, \"Timelock::acceptAdmin: Call must come from pendingAdmin.\");\n        admin = msg.sender;\n        pendingAdmin = address(0);\n\n        emit NewAdmin(admin);\n    }\n\n    function setPendingAdmin(address pendingAdmin_) public {\n        require(msg.sender == address(this), \"Timelock::setPendingAdmin: Call must come from Timelock.\");\n        pendingAdmin = pendingAdmin_;\n\n        emit NewPendingAdmin(pendingAdmin);\n    }\n\n    function queueTransaction(address target, uint value, string memory signature, bytes memory data, uint eta) public returns (bytes32) {\n        require(msg.sender == admin, \"Timelock::queueTransaction: Call must come from admin.\");\n        require(eta >= getBlockTimestamp().add(delay), \"Timelock::queueTransaction: Estimated execution block must satisfy delay.\");\n\n        bytes32 txHash = keccak256(abi.encode(target, value, signature, data, eta));\n        queuedTransactions[txHash] = true;\n\n        emit QueueTransaction(txHash, target, value, signature, data, eta);\n        return txHash;\n    }\n\n    function cancelTransaction(address target, uint value, string memory signature, bytes memory data, uint eta) public {\n        require(msg.sender == admin, \"Timelock::cancelTransaction: Call must come from admin.\");\n\n        bytes32 txHash = keccak256(abi.encode(target, value, signature, data, eta));\n        queuedTransactions[txHash] = false;\n\n        emit CancelTransaction(txHash, target, value, signature, data, eta);\n    }\n\n    function executeTransaction(address target, uint value, string memory signature, bytes memory data, uint eta) public payable returns (bytes memory) {\n        require(msg.sender == admin, \"Timelock::executeTransaction: Call must come from admin.\");\n\n        bytes32 txHash = keccak256(abi.encode(target, value, signature, data, eta));\n        require(queuedTransactions[txHash], \"Timelock::executeTransaction: Transaction hasn't been queued.\");\n        require(getBlockTimestamp() >= eta, \"Timelock::executeTransaction: Transaction hasn't surpassed time lock.\");\n        require(getBlockTimestamp() <= eta.add(GRACE_PERIOD), \"Timelock::executeTransaction: Transaction is stale.\");\n\n        queuedTransactions[txHash] = false;\n\n        bytes memory callData;\n\n        if (bytes(signature).length == 0) {\n            callData = data;\n        } else {\n            callData = abi.encodePacked(bytes4(keccak256(bytes(signature))), data);\n        }\n\n        // solium-disable-next-line security/no-call-value\n        (bool success, bytes memory returnData) = target.call{value: value}(callData);\n        require(success, \"Timelock::executeTransaction: Transaction execution reverted.\");\n\n        emit ExecuteTransaction(txHash, target, value, signature, data, eta);\n\n        return returnData;\n    }\n\n    function getBlockTimestamp() internal view returns (uint) {\n        // solium-disable-next-line security/no-block-members\n        return block.timestamp;\n    }\n}\n"
    }
  }
}