organized_contracts/1d/1d059ca685bf7c74ea6879af7d55719163e4813d4165d5fcf0072b108a4a4272/contract.json

{
  "language": "Solidity",
  "sources": {
    "@openzeppelin/contracts/access/AccessControl.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.8.0) (access/AccessControl.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./IAccessControl.sol\";\nimport \"../utils/Context.sol\";\nimport \"../utils/Strings.sol\";\nimport \"../utils/introspection/ERC165.sol\";\n\n/**\n * @dev Contract module that allows children to implement role-based access\n * control mechanisms. This is a lightweight version that doesn't allow enumerating role\n * members except through off-chain means by accessing the contract event logs. Some\n * applications may benefit from on-chain enumerability, for those cases see\n * {AccessControlEnumerable}.\n *\n * Roles are referred to by their `bytes32` identifier. These should be exposed\n * in the external API and be unique. The best way to achieve this is by\n * using `public constant` hash digests:\n *\n * ```\n * bytes32 public constant MY_ROLE = keccak256(\"MY_ROLE\");\n * ```\n *\n * Roles can be used to represent a set of permissions. To restrict access to a\n * function call, use {hasRole}:\n *\n * ```\n * function foo() public {\n *     require(hasRole(MY_ROLE, msg.sender));\n *     ...\n * }\n * ```\n *\n * Roles can be granted and revoked dynamically via the {grantRole} and\n * {revokeRole} functions. Each role has an associated admin role, and only\n * accounts that have a role's admin role can call {grantRole} and {revokeRole}.\n *\n * By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means\n * that only accounts with this role will be able to grant or revoke other\n * roles. More complex role relationships can be created by using\n * {_setRoleAdmin}.\n *\n * WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to\n * grant and revoke this role. Extra precautions should be taken to secure\n * accounts that have been granted it.\n */\nabstract contract AccessControl is Context, IAccessControl, ERC165 {\n    struct RoleData {\n        mapping(address => bool) members;\n        bytes32 adminRole;\n    }\n\n    mapping(bytes32 => RoleData) private _roles;\n\n    bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00;\n\n    /**\n     * @dev Modifier that checks that an account has a specific role. Reverts\n     * with a standardized message including the required role.\n     *\n     * The format of the revert reason is given by the following regular expression:\n     *\n     *  /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/\n     *\n     * _Available since v4.1._\n     */\n    modifier onlyRole(bytes32 role) {\n        _checkRole(role);\n        _;\n    }\n\n    /**\n     * @dev See {IERC165-supportsInterface}.\n     */\n    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n        return interfaceId == type(IAccessControl).interfaceId || super.supportsInterface(interfaceId);\n    }\n\n    /**\n     * @dev Returns `true` if `account` has been granted `role`.\n     */\n    function hasRole(bytes32 role, address account) public view virtual override returns (bool) {\n        return _roles[role].members[account];\n    }\n\n    /**\n     * @dev Revert with a standard message if `_msgSender()` is missing `role`.\n     * Overriding this function changes the behavior of the {onlyRole} modifier.\n     *\n     * Format of the revert message is described in {_checkRole}.\n     *\n     * _Available since v4.6._\n     */\n    function _checkRole(bytes32 role) internal view virtual {\n        _checkRole(role, _msgSender());\n    }\n\n    /**\n     * @dev Revert with a standard message if `account` is missing `role`.\n     *\n     * The format of the revert reason is given by the following regular expression:\n     *\n     *  /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/\n     */\n    function _checkRole(bytes32 role, address account) internal view virtual {\n        if (!hasRole(role, account)) {\n            revert(\n                string(\n                    abi.encodePacked(\n                        \"AccessControl: account \",\n                        Strings.toHexString(account),\n                        \" is missing role \",\n                        Strings.toHexString(uint256(role), 32)\n                    )\n                )\n            );\n        }\n    }\n\n    /**\n     * @dev Returns the admin role that controls `role`. See {grantRole} and\n     * {revokeRole}.\n     *\n     * To change a role's admin, use {_setRoleAdmin}.\n     */\n    function getRoleAdmin(bytes32 role) public view virtual override returns (bytes32) {\n        return _roles[role].adminRole;\n    }\n\n    /**\n     * @dev Grants `role` to `account`.\n     *\n     * If `account` had not been already granted `role`, emits a {RoleGranted}\n     * event.\n     *\n     * Requirements:\n     *\n     * - the caller must have ``role``'s admin role.\n     *\n     * May emit a {RoleGranted} event.\n     */\n    function grantRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) {\n        _grantRole(role, account);\n    }\n\n    /**\n     * @dev Revokes `role` from `account`.\n     *\n     * If `account` had been granted `role`, emits a {RoleRevoked} event.\n     *\n     * Requirements:\n     *\n     * - the caller must have ``role``'s admin role.\n     *\n     * May emit a {RoleRevoked} event.\n     */\n    function revokeRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) {\n        _revokeRole(role, account);\n    }\n\n    /**\n     * @dev Revokes `role` from the calling account.\n     *\n     * Roles are often managed via {grantRole} and {revokeRole}: this function's\n     * purpose is to provide a mechanism for accounts to lose their privileges\n     * if they are compromised (such as when a trusted device is misplaced).\n     *\n     * If the calling account had been revoked `role`, emits a {RoleRevoked}\n     * event.\n     *\n     * Requirements:\n     *\n     * - the caller must be `account`.\n     *\n     * May emit a {RoleRevoked} event.\n     */\n    function renounceRole(bytes32 role, address account) public virtual override {\n        require(account == _msgSender(), \"AccessControl: can only renounce roles for self\");\n\n        _revokeRole(role, account);\n    }\n\n    /**\n     * @dev Grants `role` to `account`.\n     *\n     * If `account` had not been already granted `role`, emits a {RoleGranted}\n     * event. Note that unlike {grantRole}, this function doesn't perform any\n     * checks on the calling account.\n     *\n     * May emit a {RoleGranted} event.\n     *\n     * [WARNING]\n     * ====\n     * This function should only be called from the constructor when setting\n     * up the initial roles for the system.\n     *\n     * Using this function in any other way is effectively circumventing the admin\n     * system imposed by {AccessControl}.\n     * ====\n     *\n     * NOTE: This function is deprecated in favor of {_grantRole}.\n     */\n    function _setupRole(bytes32 role, address account) internal virtual {\n        _grantRole(role, account);\n    }\n\n    /**\n     * @dev Sets `adminRole` as ``role``'s admin role.\n     *\n     * Emits a {RoleAdminChanged} event.\n     */\n    function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual {\n        bytes32 previousAdminRole = getRoleAdmin(role);\n        _roles[role].adminRole = adminRole;\n        emit RoleAdminChanged(role, previousAdminRole, adminRole);\n    }\n\n    /**\n     * @dev Grants `role` to `account`.\n     *\n     * Internal function without access restriction.\n     *\n     * May emit a {RoleGranted} event.\n     */\n    function _grantRole(bytes32 role, address account) internal virtual {\n        if (!hasRole(role, account)) {\n            _roles[role].members[account] = true;\n            emit RoleGranted(role, account, _msgSender());\n        }\n    }\n\n    /**\n     * @dev Revokes `role` from `account`.\n     *\n     * Internal function without access restriction.\n     *\n     * May emit a {RoleRevoked} event.\n     */\n    function _revokeRole(bytes32 role, address account) internal virtual {\n        if (hasRole(role, account)) {\n            _roles[role].members[account] = false;\n            emit RoleRevoked(role, account, _msgSender());\n        }\n    }\n}\n"
    },
    "@openzeppelin/contracts/access/AccessControlEnumerable.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.5.0) (access/AccessControlEnumerable.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./IAccessControlEnumerable.sol\";\nimport \"./AccessControl.sol\";\nimport \"../utils/structs/EnumerableSet.sol\";\n\n/**\n * @dev Extension of {AccessControl} that allows enumerating the members of each role.\n */\nabstract contract AccessControlEnumerable is IAccessControlEnumerable, AccessControl {\n    using EnumerableSet for EnumerableSet.AddressSet;\n\n    mapping(bytes32 => EnumerableSet.AddressSet) private _roleMembers;\n\n    /**\n     * @dev See {IERC165-supportsInterface}.\n     */\n    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n        return interfaceId == type(IAccessControlEnumerable).interfaceId || super.supportsInterface(interfaceId);\n    }\n\n    /**\n     * @dev Returns one of the accounts that have `role`. `index` must be a\n     * value between 0 and {getRoleMemberCount}, non-inclusive.\n     *\n     * Role bearers are not sorted in any particular way, and their ordering may\n     * change at any point.\n     *\n     * WARNING: When using {getRoleMember} and {getRoleMemberCount}, make sure\n     * you perform all queries on the same block. See the following\n     * https://forum.openzeppelin.com/t/iterating-over-elements-on-enumerableset-in-openzeppelin-contracts/2296[forum post]\n     * for more information.\n     */\n    function getRoleMember(bytes32 role, uint256 index) public view virtual override returns (address) {\n        return _roleMembers[role].at(index);\n    }\n\n    /**\n     * @dev Returns the number of accounts that have `role`. Can be used\n     * together with {getRoleMember} to enumerate all bearers of a role.\n     */\n    function getRoleMemberCount(bytes32 role) public view virtual override returns (uint256) {\n        return _roleMembers[role].length();\n    }\n\n    /**\n     * @dev Overload {_grantRole} to track enumerable memberships\n     */\n    function _grantRole(bytes32 role, address account) internal virtual override {\n        super._grantRole(role, account);\n        _roleMembers[role].add(account);\n    }\n\n    /**\n     * @dev Overload {_revokeRole} to track enumerable memberships\n     */\n    function _revokeRole(bytes32 role, address account) internal virtual override {\n        super._revokeRole(role, account);\n        _roleMembers[role].remove(account);\n    }\n}\n"
    },
    "@openzeppelin/contracts/access/IAccessControl.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (access/IAccessControl.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev External interface of AccessControl declared to support ERC165 detection.\n */\ninterface IAccessControl {\n    /**\n     * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole`\n     *\n     * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite\n     * {RoleAdminChanged} not being emitted signaling this.\n     *\n     * _Available since v3.1._\n     */\n    event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole);\n\n    /**\n     * @dev Emitted when `account` is granted `role`.\n     *\n     * `sender` is the account that originated the contract call, an admin role\n     * bearer except when using {AccessControl-_setupRole}.\n     */\n    event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender);\n\n    /**\n     * @dev Emitted when `account` is revoked `role`.\n     *\n     * `sender` is the account that originated the contract call:\n     *   - if using `revokeRole`, it is the admin role bearer\n     *   - if using `renounceRole`, it is the role bearer (i.e. `account`)\n     */\n    event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender);\n\n    /**\n     * @dev Returns `true` if `account` has been granted `role`.\n     */\n    function hasRole(bytes32 role, address account) external view returns (bool);\n\n    /**\n     * @dev Returns the admin role that controls `role`. See {grantRole} and\n     * {revokeRole}.\n     *\n     * To change a role's admin, use {AccessControl-_setRoleAdmin}.\n     */\n    function getRoleAdmin(bytes32 role) external view returns (bytes32);\n\n    /**\n     * @dev Grants `role` to `account`.\n     *\n     * If `account` had not been already granted `role`, emits a {RoleGranted}\n     * event.\n     *\n     * Requirements:\n     *\n     * - the caller must have ``role``'s admin role.\n     */\n    function grantRole(bytes32 role, address account) external;\n\n    /**\n     * @dev Revokes `role` from `account`.\n     *\n     * If `account` had been granted `role`, emits a {RoleRevoked} event.\n     *\n     * Requirements:\n     *\n     * - the caller must have ``role``'s admin role.\n     */\n    function revokeRole(bytes32 role, address account) external;\n\n    /**\n     * @dev Revokes `role` from the calling account.\n     *\n     * Roles are often managed via {grantRole} and {revokeRole}: this function's\n     * purpose is to provide a mechanism for accounts to lose their privileges\n     * if they are compromised (such as when a trusted device is misplaced).\n     *\n     * If the calling account had been granted `role`, emits a {RoleRevoked}\n     * event.\n     *\n     * Requirements:\n     *\n     * - the caller must be `account`.\n     */\n    function renounceRole(bytes32 role, address account) external;\n}\n"
    },
    "@openzeppelin/contracts/access/IAccessControlEnumerable.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (access/IAccessControlEnumerable.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./IAccessControl.sol\";\n\n/**\n * @dev External interface of AccessControlEnumerable declared to support ERC165 detection.\n */\ninterface IAccessControlEnumerable is IAccessControl {\n    /**\n     * @dev Returns one of the accounts that have `role`. `index` must be a\n     * value between 0 and {getRoleMemberCount}, non-inclusive.\n     *\n     * Role bearers are not sorted in any particular way, and their ordering may\n     * change at any point.\n     *\n     * WARNING: When using {getRoleMember} and {getRoleMemberCount}, make sure\n     * you perform all queries on the same block. See the following\n     * https://forum.openzeppelin.com/t/iterating-over-elements-on-enumerableset-in-openzeppelin-contracts/2296[forum post]\n     * for more information.\n     */\n    function getRoleMember(bytes32 role, uint256 index) external view returns (address);\n\n    /**\n     * @dev Returns the number of accounts that have `role`. Can be used\n     * together with {getRoleMember} to enumerate all bearers of a role.\n     */\n    function getRoleMemberCount(bytes32 role) external view returns (uint256);\n}\n"
    },
    "@openzeppelin/contracts/utils/Base64.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (utils/Base64.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Provides a set of functions to operate with Base64 strings.\n *\n * _Available since v4.5._\n */\nlibrary Base64 {\n    /**\n     * @dev Base64 Encoding/Decoding Table\n     */\n    string internal constant _TABLE = \"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/\";\n\n    /**\n     * @dev Converts a `bytes` to its Bytes64 `string` representation.\n     */\n    function encode(bytes memory data) internal pure returns (string memory) {\n        /**\n         * Inspired by Brecht Devos (Brechtpd) implementation - MIT licence\n         * https://github.com/Brechtpd/base64/blob/e78d9fd951e7b0977ddca77d92dc85183770daf4/base64.sol\n         */\n        if (data.length == 0) return \"\";\n\n        // Loads the table into memory\n        string memory table = _TABLE;\n\n        // Encoding takes 3 bytes chunks of binary data from `bytes` data parameter\n        // and split into 4 numbers of 6 bits.\n        // The final Base64 length should be `bytes` data length multiplied by 4/3 rounded up\n        // - `data.length + 2`  -> Round up\n        // - `/ 3`              -> Number of 3-bytes chunks\n        // - `4 *`              -> 4 characters for each chunk\n        string memory result = new string(4 * ((data.length + 2) / 3));\n\n        /// @solidity memory-safe-assembly\n        assembly {\n            // Prepare the lookup table (skip the first \"length\" byte)\n            let tablePtr := add(table, 1)\n\n            // Prepare result pointer, jump over length\n            let resultPtr := add(result, 32)\n\n            // Run over the input, 3 bytes at a time\n            for {\n                let dataPtr := data\n                let endPtr := add(data, mload(data))\n            } lt(dataPtr, endPtr) {\n\n            } {\n                // Advance 3 bytes\n                dataPtr := add(dataPtr, 3)\n                let input := mload(dataPtr)\n\n                // To write each character, shift the 3 bytes (18 bits) chunk\n                // 4 times in blocks of 6 bits for each character (18, 12, 6, 0)\n                // and apply logical AND with 0x3F which is the number of\n                // the previous character in the ASCII table prior to the Base64 Table\n                // The result is then added to the table to get the character to write,\n                // and finally write it in the result pointer but with a left shift\n                // of 256 (1 byte) - 8 (1 ASCII char) = 248 bits\n\n                mstore8(resultPtr, mload(add(tablePtr, and(shr(18, input), 0x3F))))\n                resultPtr := add(resultPtr, 1) // Advance\n\n                mstore8(resultPtr, mload(add(tablePtr, and(shr(12, input), 0x3F))))\n                resultPtr := add(resultPtr, 1) // Advance\n\n                mstore8(resultPtr, mload(add(tablePtr, and(shr(6, input), 0x3F))))\n                resultPtr := add(resultPtr, 1) // Advance\n\n                mstore8(resultPtr, mload(add(tablePtr, and(input, 0x3F))))\n                resultPtr := add(resultPtr, 1) // Advance\n            }\n\n            // When data `bytes` is not exactly 3 bytes long\n            // it is padded with `=` characters at the end\n            switch mod(mload(data), 3)\n            case 1 {\n                mstore8(sub(resultPtr, 1), 0x3d)\n                mstore8(sub(resultPtr, 2), 0x3d)\n            }\n            case 2 {\n                mstore8(sub(resultPtr, 1), 0x3d)\n            }\n        }\n\n        return result;\n    }\n}\n"
    },
    "@openzeppelin/contracts/utils/Context.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Provides information about the current execution context, including the\n * sender of the transaction and its data. While these are generally available\n * via msg.sender and msg.data, they should not be accessed in such a direct\n * manner, since when dealing with meta-transactions the account sending and\n * paying for execution may not be the actual sender (as far as an application\n * is concerned).\n *\n * This contract is only required for intermediate, library-like contracts.\n */\nabstract contract Context {\n    function _msgSender() internal view virtual returns (address) {\n        return msg.sender;\n    }\n\n    function _msgData() internal view virtual returns (bytes calldata) {\n        return msg.data;\n    }\n}\n"
    },
    "@openzeppelin/contracts/utils/introspection/ERC165.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./IERC165.sol\";\n\n/**\n * @dev Implementation of the {IERC165} interface.\n *\n * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check\n * for the additional interface id that will be supported. For example:\n *\n * ```solidity\n * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n *     return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);\n * }\n * ```\n *\n * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.\n */\nabstract contract ERC165 is IERC165 {\n    /**\n     * @dev See {IERC165-supportsInterface}.\n     */\n    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n        return interfaceId == type(IERC165).interfaceId;\n    }\n}\n"
    },
    "@openzeppelin/contracts/utils/introspection/IERC165.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC165 standard, as defined in the\n * https://eips.ethereum.org/EIPS/eip-165[EIP].\n *\n * Implementers can declare support of contract interfaces, which can then be\n * queried by others ({ERC165Checker}).\n *\n * For an implementation, see {ERC165}.\n */\ninterface IERC165 {\n    /**\n     * @dev Returns true if this contract implements the interface defined by\n     * `interfaceId`. See the corresponding\n     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]\n     * to learn more about how these ids are created.\n     *\n     * This function call must use less than 30 000 gas.\n     */\n    function supportsInterface(bytes4 interfaceId) external view returns (bool);\n}\n"
    },
    "@openzeppelin/contracts/utils/math/Math.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.8.0) (utils/math/Math.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Standard math utilities missing in the Solidity language.\n */\nlibrary Math {\n    enum Rounding {\n        Down, // Toward negative infinity\n        Up, // Toward infinity\n        Zero // Toward zero\n    }\n\n    /**\n     * @dev Returns the largest of two numbers.\n     */\n    function max(uint256 a, uint256 b) internal pure returns (uint256) {\n        return a > b ? a : b;\n    }\n\n    /**\n     * @dev Returns the smallest of two numbers.\n     */\n    function min(uint256 a, uint256 b) internal pure returns (uint256) {\n        return a < b ? a : b;\n    }\n\n    /**\n     * @dev Returns the average of two numbers. The result is rounded towards\n     * zero.\n     */\n    function average(uint256 a, uint256 b) internal pure returns (uint256) {\n        // (a + b) / 2 can overflow.\n        return (a & b) + (a ^ b) / 2;\n    }\n\n    /**\n     * @dev Returns the ceiling of the division of two numbers.\n     *\n     * This differs from standard division with `/` in that it rounds up instead\n     * of rounding down.\n     */\n    function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {\n        // (a + b - 1) / b can overflow on addition, so we distribute.\n        return a == 0 ? 0 : (a - 1) / b + 1;\n    }\n\n    /**\n     * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0\n     * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv)\n     * with further edits by Uniswap Labs also under MIT license.\n     */\n    function mulDiv(\n        uint256 x,\n        uint256 y,\n        uint256 denominator\n    ) internal pure returns (uint256 result) {\n        unchecked {\n            // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use\n            // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256\n            // variables such that product = prod1 * 2^256 + prod0.\n            uint256 prod0; // Least significant 256 bits of the product\n            uint256 prod1; // Most significant 256 bits of the product\n            assembly {\n                let mm := mulmod(x, y, not(0))\n                prod0 := mul(x, y)\n                prod1 := sub(sub(mm, prod0), lt(mm, prod0))\n            }\n\n            // Handle non-overflow cases, 256 by 256 division.\n            if (prod1 == 0) {\n                return prod0 / denominator;\n            }\n\n            // Make sure the result is less than 2^256. Also prevents denominator == 0.\n            require(denominator > prod1);\n\n            ///////////////////////////////////////////////\n            // 512 by 256 division.\n            ///////////////////////////////////////////////\n\n            // Make division exact by subtracting the remainder from [prod1 prod0].\n            uint256 remainder;\n            assembly {\n                // Compute remainder using mulmod.\n                remainder := mulmod(x, y, denominator)\n\n                // Subtract 256 bit number from 512 bit number.\n                prod1 := sub(prod1, gt(remainder, prod0))\n                prod0 := sub(prod0, remainder)\n            }\n\n            // Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1.\n            // See https://cs.stackexchange.com/q/138556/92363.\n\n            // Does not overflow because the denominator cannot be zero at this stage in the function.\n            uint256 twos = denominator & (~denominator + 1);\n            assembly {\n                // Divide denominator by twos.\n                denominator := div(denominator, twos)\n\n                // Divide [prod1 prod0] by twos.\n                prod0 := div(prod0, twos)\n\n                // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.\n                twos := add(div(sub(0, twos), twos), 1)\n            }\n\n            // Shift in bits from prod1 into prod0.\n            prod0 |= prod1 * twos;\n\n            // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such\n            // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for\n            // four bits. That is, denominator * inv = 1 mod 2^4.\n            uint256 inverse = (3 * denominator) ^ 2;\n\n            // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works\n            // in modular arithmetic, doubling the correct bits in each step.\n            inverse *= 2 - denominator * inverse; // inverse mod 2^8\n            inverse *= 2 - denominator * inverse; // inverse mod 2^16\n            inverse *= 2 - denominator * inverse; // inverse mod 2^32\n            inverse *= 2 - denominator * inverse; // inverse mod 2^64\n            inverse *= 2 - denominator * inverse; // inverse mod 2^128\n            inverse *= 2 - denominator * inverse; // inverse mod 2^256\n\n            // Because the division is now exact we can divide by multiplying with the modular inverse of denominator.\n            // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is\n            // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1\n            // is no longer required.\n            result = prod0 * inverse;\n            return result;\n        }\n    }\n\n    /**\n     * @notice Calculates x * y / denominator with full precision, following the selected rounding direction.\n     */\n    function mulDiv(\n        uint256 x,\n        uint256 y,\n        uint256 denominator,\n        Rounding rounding\n    ) internal pure returns (uint256) {\n        uint256 result = mulDiv(x, y, denominator);\n        if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) {\n            result += 1;\n        }\n        return result;\n    }\n\n    /**\n     * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down.\n     *\n     * Inspired by Henry S. Warren, Jr.'s \"Hacker's Delight\" (Chapter 11).\n     */\n    function sqrt(uint256 a) internal pure returns (uint256) {\n        if (a == 0) {\n            return 0;\n        }\n\n        // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.\n        //\n        // We know that the \"msb\" (most significant bit) of our target number `a` is a power of 2 such that we have\n        // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.\n        //\n        // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`\n        // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`\n        // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`\n        //\n        // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.\n        uint256 result = 1 << (log2(a) >> 1);\n\n        // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,\n        // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at\n        // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision\n        // into the expected uint128 result.\n        unchecked {\n            result = (result + a / result) >> 1;\n            result = (result + a / result) >> 1;\n            result = (result + a / result) >> 1;\n            result = (result + a / result) >> 1;\n            result = (result + a / result) >> 1;\n            result = (result + a / result) >> 1;\n            result = (result + a / result) >> 1;\n            return min(result, a / result);\n        }\n    }\n\n    /**\n     * @notice Calculates sqrt(a), following the selected rounding direction.\n     */\n    function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {\n        unchecked {\n            uint256 result = sqrt(a);\n            return result + (rounding == Rounding.Up && result * result < a ? 1 : 0);\n        }\n    }\n\n    /**\n     * @dev Return the log in base 2, rounded down, of a positive value.\n     * Returns 0 if given 0.\n     */\n    function log2(uint256 value) internal pure returns (uint256) {\n        uint256 result = 0;\n        unchecked {\n            if (value >> 128 > 0) {\n                value >>= 128;\n                result += 128;\n            }\n            if (value >> 64 > 0) {\n                value >>= 64;\n                result += 64;\n            }\n            if (value >> 32 > 0) {\n                value >>= 32;\n                result += 32;\n            }\n            if (value >> 16 > 0) {\n                value >>= 16;\n                result += 16;\n            }\n            if (value >> 8 > 0) {\n                value >>= 8;\n                result += 8;\n            }\n            if (value >> 4 > 0) {\n                value >>= 4;\n                result += 4;\n            }\n            if (value >> 2 > 0) {\n                value >>= 2;\n                result += 2;\n            }\n            if (value >> 1 > 0) {\n                result += 1;\n            }\n        }\n        return result;\n    }\n\n    /**\n     * @dev Return the log in base 2, following the selected rounding direction, of a positive value.\n     * Returns 0 if given 0.\n     */\n    function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {\n        unchecked {\n            uint256 result = log2(value);\n            return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0);\n        }\n    }\n\n    /**\n     * @dev Return the log in base 10, rounded down, of a positive value.\n     * Returns 0 if given 0.\n     */\n    function log10(uint256 value) internal pure returns (uint256) {\n        uint256 result = 0;\n        unchecked {\n            if (value >= 10**64) {\n                value /= 10**64;\n                result += 64;\n            }\n            if (value >= 10**32) {\n                value /= 10**32;\n                result += 32;\n            }\n            if (value >= 10**16) {\n                value /= 10**16;\n                result += 16;\n            }\n            if (value >= 10**8) {\n                value /= 10**8;\n                result += 8;\n            }\n            if (value >= 10**4) {\n                value /= 10**4;\n                result += 4;\n            }\n            if (value >= 10**2) {\n                value /= 10**2;\n                result += 2;\n            }\n            if (value >= 10**1) {\n                result += 1;\n            }\n        }\n        return result;\n    }\n\n    /**\n     * @dev Return the log in base 10, following the selected rounding direction, of a positive value.\n     * Returns 0 if given 0.\n     */\n    function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {\n        unchecked {\n            uint256 result = log10(value);\n            return result + (rounding == Rounding.Up && 10**result < value ? 1 : 0);\n        }\n    }\n\n    /**\n     * @dev Return the log in base 256, rounded down, of a positive value.\n     * Returns 0 if given 0.\n     *\n     * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.\n     */\n    function log256(uint256 value) internal pure returns (uint256) {\n        uint256 result = 0;\n        unchecked {\n            if (value >> 128 > 0) {\n                value >>= 128;\n                result += 16;\n            }\n            if (value >> 64 > 0) {\n                value >>= 64;\n                result += 8;\n            }\n            if (value >> 32 > 0) {\n                value >>= 32;\n                result += 4;\n            }\n            if (value >> 16 > 0) {\n                value >>= 16;\n                result += 2;\n            }\n            if (value >> 8 > 0) {\n                result += 1;\n            }\n        }\n        return result;\n    }\n\n    /**\n     * @dev Return the log in base 10, following the selected rounding direction, of a positive value.\n     * Returns 0 if given 0.\n     */\n    function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {\n        unchecked {\n            uint256 result = log256(value);\n            return result + (rounding == Rounding.Up && 1 << (result * 8) < value ? 1 : 0);\n        }\n    }\n}\n"
    },
    "@openzeppelin/contracts/utils/Strings.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.8.0) (utils/Strings.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./math/Math.sol\";\n\n/**\n * @dev String operations.\n */\nlibrary Strings {\n    bytes16 private constant _SYMBOLS = \"0123456789abcdef\";\n    uint8 private constant _ADDRESS_LENGTH = 20;\n\n    /**\n     * @dev Converts a `uint256` to its ASCII `string` decimal representation.\n     */\n    function toString(uint256 value) internal pure returns (string memory) {\n        unchecked {\n            uint256 length = Math.log10(value) + 1;\n            string memory buffer = new string(length);\n            uint256 ptr;\n            /// @solidity memory-safe-assembly\n            assembly {\n                ptr := add(buffer, add(32, length))\n            }\n            while (true) {\n                ptr--;\n                /// @solidity memory-safe-assembly\n                assembly {\n                    mstore8(ptr, byte(mod(value, 10), _SYMBOLS))\n                }\n                value /= 10;\n                if (value == 0) break;\n            }\n            return buffer;\n        }\n    }\n\n    /**\n     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.\n     */\n    function toHexString(uint256 value) internal pure returns (string memory) {\n        unchecked {\n            return toHexString(value, Math.log256(value) + 1);\n        }\n    }\n\n    /**\n     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.\n     */\n    function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {\n        bytes memory buffer = new bytes(2 * length + 2);\n        buffer[0] = \"0\";\n        buffer[1] = \"x\";\n        for (uint256 i = 2 * length + 1; i > 1; --i) {\n            buffer[i] = _SYMBOLS[value & 0xf];\n            value >>= 4;\n        }\n        require(value == 0, \"Strings: hex length insufficient\");\n        return string(buffer);\n    }\n\n    /**\n     * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.\n     */\n    function toHexString(address addr) internal pure returns (string memory) {\n        return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);\n    }\n}\n"
    },
    "@openzeppelin/contracts/utils/structs/EnumerableSet.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.8.0) (utils/structs/EnumerableSet.sol)\n// This file was procedurally generated from scripts/generate/templates/EnumerableSet.js.\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Library for managing\n * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive\n * types.\n *\n * Sets have the following properties:\n *\n * - Elements are added, removed, and checked for existence in constant time\n * (O(1)).\n * - Elements are enumerated in O(n). No guarantees are made on the ordering.\n *\n * ```\n * contract Example {\n *     // Add the library methods\n *     using EnumerableSet for EnumerableSet.AddressSet;\n *\n *     // Declare a set state variable\n *     EnumerableSet.AddressSet private mySet;\n * }\n * ```\n *\n * As of v3.3.0, sets of type `bytes32` (`Bytes32Set`), `address` (`AddressSet`)\n * and `uint256` (`UintSet`) are supported.\n *\n * [WARNING]\n * ====\n * Trying to delete such a structure from storage will likely result in data corruption, rendering the structure\n * unusable.\n * See https://github.com/ethereum/solidity/pull/11843[ethereum/solidity#11843] for more info.\n *\n * In order to clean an EnumerableSet, you can either remove all elements one by one or create a fresh instance using an\n * array of EnumerableSet.\n * ====\n */\nlibrary EnumerableSet {\n    // To implement this library for multiple types with as little code\n    // repetition as possible, we write it in terms of a generic Set type with\n    // bytes32 values.\n    // The Set implementation uses private functions, and user-facing\n    // implementations (such as AddressSet) are just wrappers around the\n    // underlying Set.\n    // This means that we can only create new EnumerableSets for types that fit\n    // in bytes32.\n\n    struct Set {\n        // Storage of set values\n        bytes32[] _values;\n        // Position of the value in the `values` array, plus 1 because index 0\n        // means a value is not in the set.\n        mapping(bytes32 => uint256) _indexes;\n    }\n\n    /**\n     * @dev Add a value to a set. O(1).\n     *\n     * Returns true if the value was added to the set, that is if it was not\n     * already present.\n     */\n    function _add(Set storage set, bytes32 value) private returns (bool) {\n        if (!_contains(set, value)) {\n            set._values.push(value);\n            // The value is stored at length-1, but we add 1 to all indexes\n            // and use 0 as a sentinel value\n            set._indexes[value] = set._values.length;\n            return true;\n        } else {\n            return false;\n        }\n    }\n\n    /**\n     * @dev Removes a value from a set. O(1).\n     *\n     * Returns true if the value was removed from the set, that is if it was\n     * present.\n     */\n    function _remove(Set storage set, bytes32 value) private returns (bool) {\n        // We read and store the value's index to prevent multiple reads from the same storage slot\n        uint256 valueIndex = set._indexes[value];\n\n        if (valueIndex != 0) {\n            // Equivalent to contains(set, value)\n            // To delete an element from the _values array in O(1), we swap the element to delete with the last one in\n            // the array, and then remove the last element (sometimes called as 'swap and pop').\n            // This modifies the order of the array, as noted in {at}.\n\n            uint256 toDeleteIndex = valueIndex - 1;\n            uint256 lastIndex = set._values.length - 1;\n\n            if (lastIndex != toDeleteIndex) {\n                bytes32 lastValue = set._values[lastIndex];\n\n                // Move the last value to the index where the value to delete is\n                set._values[toDeleteIndex] = lastValue;\n                // Update the index for the moved value\n                set._indexes[lastValue] = valueIndex; // Replace lastValue's index to valueIndex\n            }\n\n            // Delete the slot where the moved value was stored\n            set._values.pop();\n\n            // Delete the index for the deleted slot\n            delete set._indexes[value];\n\n            return true;\n        } else {\n            return false;\n        }\n    }\n\n    /**\n     * @dev Returns true if the value is in the set. O(1).\n     */\n    function _contains(Set storage set, bytes32 value) private view returns (bool) {\n        return set._indexes[value] != 0;\n    }\n\n    /**\n     * @dev Returns the number of values on the set. O(1).\n     */\n    function _length(Set storage set) private view returns (uint256) {\n        return set._values.length;\n    }\n\n    /**\n     * @dev Returns the value stored at position `index` in the set. O(1).\n     *\n     * Note that there are no guarantees on the ordering of values inside the\n     * array, and it may change when more values are added or removed.\n     *\n     * Requirements:\n     *\n     * - `index` must be strictly less than {length}.\n     */\n    function _at(Set storage set, uint256 index) private view returns (bytes32) {\n        return set._values[index];\n    }\n\n    /**\n     * @dev Return the entire set in an array\n     *\n     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed\n     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that\n     * this function has an unbounded cost, and using it as part of a state-changing function may render the function\n     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.\n     */\n    function _values(Set storage set) private view returns (bytes32[] memory) {\n        return set._values;\n    }\n\n    // Bytes32Set\n\n    struct Bytes32Set {\n        Set _inner;\n    }\n\n    /**\n     * @dev Add a value to a set. O(1).\n     *\n     * Returns true if the value was added to the set, that is if it was not\n     * already present.\n     */\n    function add(Bytes32Set storage set, bytes32 value) internal returns (bool) {\n        return _add(set._inner, value);\n    }\n\n    /**\n     * @dev Removes a value from a set. O(1).\n     *\n     * Returns true if the value was removed from the set, that is if it was\n     * present.\n     */\n    function remove(Bytes32Set storage set, bytes32 value) internal returns (bool) {\n        return _remove(set._inner, value);\n    }\n\n    /**\n     * @dev Returns true if the value is in the set. O(1).\n     */\n    function contains(Bytes32Set storage set, bytes32 value) internal view returns (bool) {\n        return _contains(set._inner, value);\n    }\n\n    /**\n     * @dev Returns the number of values in the set. O(1).\n     */\n    function length(Bytes32Set storage set) internal view returns (uint256) {\n        return _length(set._inner);\n    }\n\n    /**\n     * @dev Returns the value stored at position `index` in the set. O(1).\n     *\n     * Note that there are no guarantees on the ordering of values inside the\n     * array, and it may change when more values are added or removed.\n     *\n     * Requirements:\n     *\n     * - `index` must be strictly less than {length}.\n     */\n    function at(Bytes32Set storage set, uint256 index) internal view returns (bytes32) {\n        return _at(set._inner, index);\n    }\n\n    /**\n     * @dev Return the entire set in an array\n     *\n     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed\n     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that\n     * this function has an unbounded cost, and using it as part of a state-changing function may render the function\n     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.\n     */\n    function values(Bytes32Set storage set) internal view returns (bytes32[] memory) {\n        bytes32[] memory store = _values(set._inner);\n        bytes32[] memory result;\n\n        /// @solidity memory-safe-assembly\n        assembly {\n            result := store\n        }\n\n        return result;\n    }\n\n    // AddressSet\n\n    struct AddressSet {\n        Set _inner;\n    }\n\n    /**\n     * @dev Add a value to a set. O(1).\n     *\n     * Returns true if the value was added to the set, that is if it was not\n     * already present.\n     */\n    function add(AddressSet storage set, address value) internal returns (bool) {\n        return _add(set._inner, bytes32(uint256(uint160(value))));\n    }\n\n    /**\n     * @dev Removes a value from a set. O(1).\n     *\n     * Returns true if the value was removed from the set, that is if it was\n     * present.\n     */\n    function remove(AddressSet storage set, address value) internal returns (bool) {\n        return _remove(set._inner, bytes32(uint256(uint160(value))));\n    }\n\n    /**\n     * @dev Returns true if the value is in the set. O(1).\n     */\n    function contains(AddressSet storage set, address value) internal view returns (bool) {\n        return _contains(set._inner, bytes32(uint256(uint160(value))));\n    }\n\n    /**\n     * @dev Returns the number of values in the set. O(1).\n     */\n    function length(AddressSet storage set) internal view returns (uint256) {\n        return _length(set._inner);\n    }\n\n    /**\n     * @dev Returns the value stored at position `index` in the set. O(1).\n     *\n     * Note that there are no guarantees on the ordering of values inside the\n     * array, and it may change when more values are added or removed.\n     *\n     * Requirements:\n     *\n     * - `index` must be strictly less than {length}.\n     */\n    function at(AddressSet storage set, uint256 index) internal view returns (address) {\n        return address(uint160(uint256(_at(set._inner, index))));\n    }\n\n    /**\n     * @dev Return the entire set in an array\n     *\n     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed\n     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that\n     * this function has an unbounded cost, and using it as part of a state-changing function may render the function\n     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.\n     */\n    function values(AddressSet storage set) internal view returns (address[] memory) {\n        bytes32[] memory store = _values(set._inner);\n        address[] memory result;\n\n        /// @solidity memory-safe-assembly\n        assembly {\n            result := store\n        }\n\n        return result;\n    }\n\n    // UintSet\n\n    struct UintSet {\n        Set _inner;\n    }\n\n    /**\n     * @dev Add a value to a set. O(1).\n     *\n     * Returns true if the value was added to the set, that is if it was not\n     * already present.\n     */\n    function add(UintSet storage set, uint256 value) internal returns (bool) {\n        return _add(set._inner, bytes32(value));\n    }\n\n    /**\n     * @dev Removes a value from a set. O(1).\n     *\n     * Returns true if the value was removed from the set, that is if it was\n     * present.\n     */\n    function remove(UintSet storage set, uint256 value) internal returns (bool) {\n        return _remove(set._inner, bytes32(value));\n    }\n\n    /**\n     * @dev Returns true if the value is in the set. O(1).\n     */\n    function contains(UintSet storage set, uint256 value) internal view returns (bool) {\n        return _contains(set._inner, bytes32(value));\n    }\n\n    /**\n     * @dev Returns the number of values in the set. O(1).\n     */\n    function length(UintSet storage set) internal view returns (uint256) {\n        return _length(set._inner);\n    }\n\n    /**\n     * @dev Returns the value stored at position `index` in the set. O(1).\n     *\n     * Note that there are no guarantees on the ordering of values inside the\n     * array, and it may change when more values are added or removed.\n     *\n     * Requirements:\n     *\n     * - `index` must be strictly less than {length}.\n     */\n    function at(UintSet storage set, uint256 index) internal view returns (uint256) {\n        return uint256(_at(set._inner, index));\n    }\n\n    /**\n     * @dev Return the entire set in an array\n     *\n     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed\n     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that\n     * this function has an unbounded cost, and using it as part of a state-changing function may render the function\n     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.\n     */\n    function values(UintSet storage set) internal view returns (uint256[] memory) {\n        bytes32[] memory store = _values(set._inner);\n        uint256[] memory result;\n\n        /// @solidity memory-safe-assembly\n        assembly {\n            result := store\n        }\n\n        return result;\n    }\n}\n"
    },
    "contracts/DiamondDawnMine.sol": {
      "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.15;\n\nimport \"@openzeppelin/contracts/access/AccessControlEnumerable.sol\";\nimport \"@openzeppelin/contracts/utils/Base64.sol\";\nimport \"@openzeppelin/contracts/utils/Strings.sol\";\nimport \"./interface/IDiamondDawnMine.sol\";\nimport \"./interface/IDiamondDawnMineAdmin.sol\";\nimport \"./objects/Diamond.sol\";\nimport \"./objects/Mine.sol\";\nimport \"./utils/MathUtils.sol\";\nimport \"./utils/Serializer.sol\";\n\n/**\n *    ________    .__                                           .___\n *    \\______ \\   |__| _____      _____     ____     ____     __| _/\n *     |    |  \\  |  | \\__  \\    /     \\   /  _ \\   /    \\   / __ |\n *     |    `   \\ |  |  / __ \\_ |  Y Y  \\ (  <_> ) |   |  \\ / /_/ |\n *    /_______  / |__| (____  / |__|_|  /  \\____/  |___|  / \\____ |\n *            \\/            \\/        \\/                \\/       \\/\n *    ________\n *    \\______ \\   _____    __  _  __   ____\n *     |    |  \\  \\__  \\   \\ \\/ \\/ /  /    \\\n *     |    `   \\  / __ \\_  \\     /  |   |  \\\n *    /_______  / (____  /   \\/\\_/   |___|  /\n *            \\/       \\/                 \\/\n *       _____    .__\n *      /     \\   |__|   ____     ____\n *     /  \\ /  \\  |  |  /    \\  _/ __ \\\n *    /    Y    \\ |  | |   |  \\ \\  ___/\n *    \\____|__  / |__| |___|  /  \\___  >\n *            \\/            \\/       \\/\n *\n * @title DiamondDawnMine\n * @author Mike Moldawsky (Tweezers)\n */\ncontract DiamondDawnMine is AccessControlEnumerable, IDiamondDawnMine, IDiamondDawnMineAdmin {\n    bool public isLocked; // mine is locked forever.\n    bool public isInitialized;\n    uint16 public maxDiamonds;\n    uint16 public diamondCount;\n    address public diamondDawn;\n    mapping(uint => string) public manifests;\n\n    // Carat loss of ~35% to ~65% from rough stone to the polished diamond.\n    uint8 private constant MIN_EXTRA_ROUGH_POINTS = 37;\n    uint8 private constant MAX_EXTRA_ROUGH_POINTS = 74;\n    // Carat loss of ~2% to ~8% in the polish process.\n    uint8 private constant MIN_EXTRA_POLISH_POINTS = 1;\n    uint8 private constant MAX_EXTRA_POLISH_POINTS = 4;\n\n    uint16 private _mineCounter;\n    uint16 private _cutCounter;\n    uint16 private _polishedCounter;\n    uint16 private _rebornCounter;\n    uint16 private _randNonce = 0;\n    Certificate[] private _mine;\n    mapping(uint => Metadata) private _metadata;\n    string private _baseTokenURI = \"ar://\";\n\n    constructor() {\n        _grantRole(DEFAULT_ADMIN_ROLE, _msgSender());\n    }\n\n    /**********************     Modifiers     ************************/\n    modifier onlyDiamondDawn() {\n        require(_msgSender() == diamondDawn, \"Only DD\");\n        _;\n    }\n\n    modifier notInitialized() {\n        require(!isInitialized, \"Initialized\");\n        _;\n    }\n\n    modifier exists(uint tokenId) {\n        require(_metadata[tokenId].state_ != Stage.NO_STAGE, \"Don't exist\");\n        _;\n    }\n\n    modifier canProcess(uint tokenId, Stage state_) {\n        require(!isLocked, \"Locked\");\n        require(state_ == _metadata[tokenId].state_, \"Can't process\");\n        _;\n    }\n\n    modifier mineOverflow(uint cnt) {\n        require((diamondCount + cnt) <= maxDiamonds, \"Mine overflow\");\n        _;\n    }\n\n    modifier mineNotDry() {\n        require(_mine.length > 0, \"Dry mine\");\n        _;\n    }\n\n    /**********************     External Functions     ************************/\n    function initialize(uint16 maxDiamonds_) external notInitialized {\n        diamondDawn = _msgSender();\n        maxDiamonds = maxDiamonds_;\n        isInitialized = true;\n    }\n\n    function forge(uint tokenId) external onlyDiamondDawn canProcess(tokenId, Stage.NO_STAGE) {\n        _metadata[tokenId].state_ = Stage.KEY;\n        emit Forge(tokenId);\n    }\n\n    function mine(uint tokenId) external onlyDiamondDawn mineNotDry canProcess(tokenId, Stage.KEY) {\n        uint extraPoints = _getRandomBetween(MIN_EXTRA_ROUGH_POINTS, MAX_EXTRA_ROUGH_POINTS);\n        Metadata storage metadata = _metadata[tokenId];\n        metadata.state_ = Stage.MINE;\n        metadata.rough.id = ++_mineCounter;\n        metadata.rough.extraPoints = uint8(extraPoints);\n        metadata.rough.shape = extraPoints % 2 == 0 ? RoughShape.MAKEABLE_1 : RoughShape.MAKEABLE_2;\n        metadata.certificate = _mineDiamond();\n        emit Mine(tokenId);\n    }\n\n    function cut(uint tokenId) external onlyDiamondDawn canProcess(tokenId, Stage.MINE) {\n        uint extraPoints = _getRandomBetween(MIN_EXTRA_POLISH_POINTS, MAX_EXTRA_POLISH_POINTS);\n        Metadata storage metadata = _metadata[tokenId];\n        metadata.state_ = Stage.CUT;\n        metadata.cut.id = ++_cutCounter;\n        metadata.cut.extraPoints = uint8(extraPoints);\n        emit Cut(tokenId);\n    }\n\n    function polish(uint tokenId) external onlyDiamondDawn canProcess(tokenId, Stage.CUT) {\n        Metadata storage metadata = _metadata[tokenId];\n        metadata.state_ = Stage.POLISH;\n        metadata.polished.id = ++_polishedCounter;\n        emit Polish(tokenId);\n    }\n\n    function ship(uint tokenId) external onlyDiamondDawn canProcess(tokenId, Stage.POLISH) {\n        Metadata storage metadata = _metadata[tokenId];\n        require(metadata.reborn.id == 0, \"Shipped\");\n        metadata.reborn.id = ++_rebornCounter;\n        emit Ship(tokenId, metadata.reborn.id, metadata.certificate.number);\n    }\n\n    function dawn(uint tokenId) external onlyDiamondDawn {\n        require(_metadata[tokenId].reborn.id > 0, \"Not shipped\");\n        require(_metadata[tokenId].state_ == Stage.POLISH, \"Wrong state\");\n        _metadata[tokenId].state_ = Stage.DAWN;\n        emit Dawn(tokenId);\n    }\n\n    function lockMine() external onlyDiamondDawn {\n        while (0 < getRoleMemberCount(DEFAULT_ADMIN_ROLE)) {\n            _revokeRole(DEFAULT_ADMIN_ROLE, getRoleMember(DEFAULT_ADMIN_ROLE, 0));\n        }\n        isLocked = true;\n    }\n\n    function eruption(Certificate[] calldata diamonds)\n        external\n        onlyRole(DEFAULT_ADMIN_ROLE)\n        mineOverflow(diamonds.length)\n    {\n        for (uint i = 0; i < diamonds.length; i++) {\n            _mine.push(diamonds[i]);\n        }\n        diamondCount += uint16(diamonds.length);\n    }\n\n    function lostShipment(uint tokenId, Certificate calldata diamond) external onlyRole(DEFAULT_ADMIN_ROLE) {\n        Metadata storage metadata = _metadata[tokenId];\n        require(metadata.state_ == Stage.POLISH || metadata.state_ == Stage.DAWN, \"Wrong shipment state\");\n        metadata.certificate = diamond;\n    }\n\n    function setManifest(Stage stage_, string calldata manifest) external onlyRole(DEFAULT_ADMIN_ROLE) {\n        require(stage_ != Stage.NO_STAGE);\n        manifests[uint(stage_)] = manifest;\n    }\n\n    function setBaseTokenURI(string calldata baseTokenURI) external onlyRole(DEFAULT_ADMIN_ROLE) {\n        _baseTokenURI = baseTokenURI;\n    }\n\n    function getMetadata(uint tokenId) external view onlyDiamondDawn exists(tokenId) returns (string memory) {\n        Metadata memory metadata = _metadata[tokenId];\n        string memory noExtensionURI = _getNoExtensionURI(metadata);\n        string memory base64Json = Base64.encode(bytes(_getMetadataJson(tokenId, metadata, noExtensionURI)));\n        return string(abi.encodePacked(\"data:application/json;base64,\", base64Json));\n    }\n\n    function isReady(Stage stage_) external view returns (bool) {\n        if (stage_ == Stage.NO_STAGE) return true;\n        if (stage_ == Stage.COMPLETED) return true;\n        if (stage_ == Stage.MINE && diamondCount != maxDiamonds) return false;\n        return bytes(manifests[uint(stage_)]).length > 0;\n    }\n\n    /**********************     Private Functions     ************************/\n\n    function _mineDiamond() private returns (Certificate memory) {\n        assert(_mine.length > 0);\n        uint index = _getRandomBetween(0, _mine.length - 1);\n        Certificate memory diamond = _mine[index];\n        _mine[index] = _mine[_mine.length - 1]; // swap last diamond with mined diamond\n        _mine.pop();\n        return diamond;\n    }\n\n    function _getRandomBetween(uint min, uint max) private returns (uint) {\n        _randNonce++;\n        return getRandomInRange(min, max, _randNonce);\n    }\n\n    function _getNoExtensionURI(Metadata memory metadata) private view returns (string memory) {\n        string memory manifest = manifests[uint(metadata.state_)];\n        string memory name = _getResourceName(metadata);\n        return string.concat(_baseTokenURI, manifest, \"/\", name);\n    }\n\n    function _getMetadataJson(\n        uint tokenId,\n        Metadata memory metadata,\n        string memory noExtensionURI\n    ) private view returns (string memory) {\n        Serializer.NFTMetadata memory nftMetadata = Serializer.NFTMetadata({\n            name: Serializer.getName(metadata, tokenId),\n            image: string.concat(noExtensionURI, \".jpeg\"), // TODO: change to jpg\n            animationUrl: string.concat(noExtensionURI, \".mp4\"),\n            attributes: _getJsonAttributes(metadata)\n        });\n        return Serializer.serialize(nftMetadata);\n    }\n\n    function _getJsonAttributes(Metadata memory metadata) private view returns (Serializer.Attribute[] memory) {\n        uint8 i = 0;\n        bool isRound = metadata.certificate.shape == Shape.ROUND;\n        Stage state_ = metadata.state_;\n        Serializer.Attribute[] memory attributes = new Serializer.Attribute[](_getStateAttrsNum(state_, isRound));\n        attributes[i] = Serializer.toStrAttribute(\"Origin\", \"Metaverse\");\n        attributes[++i] = Serializer.toStrAttribute(\"Type\", Serializer.toTypeStr(state_));\n        if (Stage.KEY == state_) {\n            attributes[++i] = Serializer.toStrAttribute(\"Metal\", \"Gold\");\n            return attributes;\n        }\n        if (uint(Stage.MINE) <= uint(state_)) {\n            attributes[++i] = Serializer.toStrAttribute(\"Stage\", Serializer.toStageStr(state_));\n            attributes[++i] = Serializer.toStrAttribute(\"Identification\", \"Natural\");\n            attributes[++i] = Serializer.toAttribute(\n                \"Carat\",\n                Serializer.toDecimalStr(_getPoints(metadata, metadata.state_)),\n                \"\"\n            );\n            attributes[++i] = Serializer.toMaxValueAttribute(\n                \"Mined\",\n                Strings.toString(metadata.rough.id),\n                Strings.toString(_mineCounter),\n                \"number\"\n            );\n            bool wasProcessed = uint(state_) > uint(Stage.MINE);\n            attributes[++i] = Serializer.toStrAttribute(wasProcessed ? \"Color Rough Stone\" : \"Color\", \"Cape\");\n            attributes[++i] = Serializer.toStrAttribute(\n                wasProcessed ? \"Shape Rough Stone\" : \"Shape\",\n                Serializer.toRoughShapeStr(metadata.rough.shape)\n            );\n        }\n        Certificate memory certificate = metadata.certificate;\n        if (uint(Stage.CUT) <= uint(state_)) {\n            attributes[++i] = Serializer.toAttribute(\n                \"Carat Rough Stone\",\n                Serializer.toDecimalStr(_getPoints(metadata, Stage.MINE)),\n                \"\"\n            );\n            attributes[++i] = Serializer.toStrAttribute(\n                \"Color\",\n                Serializer.toColorStr(certificate.color, certificate.toColor)\n            );\n            if (isRound) {\n                attributes[++i] = Serializer.toStrAttribute(\"Cut\", Serializer.toGradeStr(certificate.cut));\n            }\n            attributes[++i] = Serializer.toStrAttribute(\n                \"Fluorescence\",\n                Serializer.toFluorescenceStr(certificate.fluorescence)\n            );\n            attributes[++i] = Serializer.toStrAttribute(\n                \"Measurements\",\n                Serializer.toMeasurementsStr(isRound, certificate.length, certificate.width, certificate.depth)\n            );\n            attributes[++i] = Serializer.toStrAttribute(\"Shape\", Serializer.toShapeStr(certificate.shape));\n            attributes[++i] = Serializer.toMaxValueAttribute(\n                \"Cut\",\n                Strings.toString(metadata.cut.id),\n                Strings.toString(_cutCounter),\n                \"number\"\n            );\n        }\n        if (uint(Stage.POLISH) <= uint(state_)) {\n            attributes[++i] = Serializer.toAttribute(\n                \"Carat Pre Polish\",\n                Serializer.toDecimalStr(_getPoints(metadata, Stage.CUT)),\n                \"\"\n            );\n            attributes[++i] = Serializer.toStrAttribute(\"Clarity\", Serializer.toClarityStr(certificate.clarity));\n            attributes[++i] = Serializer.toStrAttribute(\"Polish\", Serializer.toGradeStr(certificate.polish));\n            attributes[++i] = Serializer.toStrAttribute(\"Symmetry\", Serializer.toGradeStr(certificate.symmetry));\n            attributes[++i] = Serializer.toMaxValueAttribute(\n                \"Polished\",\n                Strings.toString(metadata.polished.id),\n                Strings.toString(_polishedCounter),\n                \"number\"\n            );\n        }\n        if (uint(Stage.DAWN) <= uint(state_)) {\n            attributes[++i] = Serializer.toStrAttribute(\"Laboratory\", \"GIA\");\n            attributes[++i] = Serializer.toAttribute(\"Report Date\", Strings.toString(certificate.date), \"date\");\n            attributes[++i] = Serializer.toStrAttribute(\"Report Number\", Strings.toString(certificate.number));\n            attributes[++i] = Serializer.toMaxValueAttribute(\n                \"Physical\",\n                Strings.toString(metadata.reborn.id),\n                Strings.toString(_rebornCounter),\n                \"number\"\n            );\n        }\n        return attributes;\n    }\n\n    function _getStateAttrsNum(Stage state_, bool isRound) private pure returns (uint) {\n        if (state_ == Stage.KEY) return 3;\n        if (state_ == Stage.MINE) return 8;\n        if (state_ == Stage.CUT) return isRound ? 15 : 14;\n        if (state_ == Stage.POLISH) return isRound ? 20 : 19;\n        if (state_ == Stage.DAWN) return isRound ? 24 : 23;\n        revert(\"Attributes number\");\n    }\n\n    function _getPoints(Metadata memory metadata, Stage state_) private pure returns (uint) {\n        assert(metadata.certificate.points > 0);\n        if (state_ == Stage.MINE) {\n            assert(metadata.rough.extraPoints > 0);\n            return metadata.certificate.points + metadata.rough.extraPoints;\n        } else if (state_ == Stage.CUT) {\n            assert(metadata.cut.extraPoints > 0);\n            return metadata.certificate.points + metadata.cut.extraPoints;\n        } else if (state_ == Stage.POLISH || state_ == Stage.DAWN) return metadata.certificate.points;\n        revert(\"Points\");\n    }\n\n    function _getResourceName(Metadata memory metadata) private pure returns (string memory) {\n        if (metadata.state_ == Stage.KEY || metadata.state_ == Stage.DAWN) return \"resource\";\n        else if (metadata.state_ == Stage.MINE) {\n            if (metadata.rough.shape == RoughShape.MAKEABLE_1) return \"makeable1\";\n            if (metadata.rough.shape == RoughShape.MAKEABLE_2) return \"makeable2\";\n        } else if (metadata.certificate.shape == Shape.PEAR) return \"pear\";\n        else if (metadata.certificate.shape == Shape.ROUND) return \"round\";\n        else if (metadata.certificate.shape == Shape.OVAL) return \"oval\";\n        else if (metadata.certificate.shape == Shape.CUSHION) return \"cushion\";\n        revert();\n    }\n}\n"
    },
    "contracts/interface/IDiamondDawnMine.sol": {
      "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.15;\n\nimport \"../objects/Mine.sol\";\nimport \"../objects/System.sol\";\n\ninterface IDiamondDawnMine {\n    event Forge(uint tokenId);\n    event Mine(uint tokenId);\n    event Cut(uint tokenId);\n    event Polish(uint tokenId);\n    event Ship(uint tokenId, uint16 physicalId, uint64 number);\n    event Dawn(uint tokenId);\n\n    function initialize(uint16 maxDiamond) external;\n\n    function forge(uint tokenId) external;\n\n    function mine(uint tokenId) external;\n\n    function cut(uint tokenId) external;\n\n    function polish(uint tokenId) external;\n\n    function ship(uint tokenId) external;\n\n    function dawn(uint tokenId) external;\n\n    function lockMine() external;\n\n    function getMetadata(uint tokenId) external view returns (string memory);\n\n    function isReady(Stage stage) external view returns (bool);\n}\n"
    },
    "contracts/interface/IDiamondDawnMineAdmin.sol": {
      "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.15;\n\nimport \"../objects/Diamond.sol\";\nimport \"../objects/System.sol\";\n\ninterface IDiamondDawnMineAdmin {\n    function eruption(Certificate[] calldata diamonds) external;\n\n    function lostShipment(uint tokenId, Certificate calldata diamond) external;\n\n    function setManifest(Stage stage_, string calldata manifest) external;\n\n    function setBaseTokenURI(string calldata baseTokenURI) external;\n}\n"
    },
    "contracts/objects/Diamond.sol": {
      "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.15;\n\nenum Shape {\n    NO_SHAPE,\n    PEAR,\n    ROUND,\n    OVAL,\n    CUSHION\n}\n\nenum Grade {\n    NO_GRADE,\n    GOOD,\n    VERY_GOOD,\n    EXCELLENT\n}\n\nenum Clarity {\n    NO_CLARITY,\n    VS2,\n    VS1,\n    VVS2,\n    VVS1,\n    IF,\n    FL\n}\n\nenum Fluorescence {\n    NO_FLUORESCENCE,\n    FAINT,\n    NONE\n}\n\nenum Color {\n    NO_COLOR,\n    K,\n    L,\n    M,\n    N,\n    O,\n    P,\n    Q,\n    R,\n    S,\n    T,\n    U,\n    V,\n    W,\n    X,\n    Y,\n    Z\n}\n\nstruct Certificate {\n    uint64 number;\n    uint32 date;\n    uint16 length;\n    uint16 width;\n    uint16 depth;\n    uint8 points;\n    Clarity clarity;\n    Color color;\n    Color toColor;\n    Grade cut;\n    Grade symmetry;\n    Grade polish;\n    Fluorescence fluorescence;\n    Shape shape;\n}\n"
    },
    "contracts/objects/Mine.sol": {
      "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.15;\n\nimport \"./Diamond.sol\";\nimport \"./System.sol\";\n\nenum RoughShape {\n    NO_SHAPE,\n    MAKEABLE_1,\n    MAKEABLE_2\n}\n\nstruct RoughMetadata {\n    uint16 id;\n    uint8 extraPoints;\n    RoughShape shape;\n}\n\nstruct CutMetadata {\n    uint16 id;\n    uint8 extraPoints;\n}\n\nstruct PolishedMetadata {\n    uint16 id;\n}\n\nstruct RebornMetadata {\n    uint16 id;\n}\n\nstruct Metadata {\n    Stage state_;\n    RoughMetadata rough;\n    CutMetadata cut;\n    PolishedMetadata polished;\n    RebornMetadata reborn;\n    Certificate certificate;\n}\n"
    },
    "contracts/objects/System.sol": {
      "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.15;\n\nenum Stage {\n    NO_STAGE,\n    KEY,\n    MINE,\n    CUT,\n    POLISH,\n    DAWN,\n    COMPLETED\n}\n"
    },
    "contracts/utils/MathUtils.sol": {
      "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.15;\n\nfunction getRandomInRange(\n    uint min,\n    uint max,\n    uint nonce\n) view returns (uint) {\n    uint rand = _rand(nonce);\n    uint range = max - min + 1;\n    return (rand % range) + min;\n}\n\nfunction _rand(uint nonce) view returns (uint) {\n    return uint(keccak256(abi.encodePacked(block.timestamp, block.difficulty, tx.origin, nonce)));\n}\n"
    },
    "contracts/utils/Serializer.sol": {
      "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.15;\n\nimport \"@openzeppelin/contracts/utils/Strings.sol\";\nimport \"../objects/Diamond.sol\";\nimport \"../objects/Mine.sol\";\n\nlibrary Serializer {\n    struct NFTMetadata {\n        string name;\n        string image;\n        string animationUrl;\n        Attribute[] attributes;\n    }\n\n    struct Attribute {\n        string traitType;\n        string value;\n        string maxValue;\n        string displayType;\n        bool isString;\n    }\n\n    function toStrAttribute(string memory traitType, string memory value) public pure returns (Attribute memory) {\n        return Attribute({traitType: traitType, value: value, maxValue: \"\", displayType: \"\", isString: true});\n    }\n\n    function toAttribute(\n        string memory traitType,\n        string memory value,\n        string memory displayType\n    ) public pure returns (Attribute memory) {\n        return Attribute({traitType: traitType, value: value, maxValue: \"\", displayType: displayType, isString: false});\n    }\n\n    function toMaxValueAttribute(\n        string memory traitType,\n        string memory value,\n        string memory maxValue,\n        string memory displayType\n    ) public pure returns (Attribute memory) {\n        return\n            Attribute({\n                traitType: traitType,\n                value: value,\n                maxValue: maxValue,\n                displayType: displayType,\n                isString: false\n            });\n    }\n\n    function serialize(NFTMetadata memory metadata) public pure returns (string memory) {\n        bytes memory bytes_;\n        bytes_ = abi.encodePacked(bytes_, _openObject());\n        bytes_ = abi.encodePacked(bytes_, _pushAttr(\"name\", metadata.name, true, false));\n        bytes_ = abi.encodePacked(bytes_, _pushAttr(\"image\", metadata.image, true, false));\n        bytes_ = abi.encodePacked(bytes_, _pushAttr(\"animation_url\", metadata.animationUrl, true, false));\n        bytes_ = abi.encodePacked(bytes_, _pushAttr(\"attributes\", _serializeAttrs(metadata.attributes), false, true));\n        bytes_ = abi.encodePacked(bytes_, _closeObject());\n        return string(bytes_);\n    }\n\n    function _serializeAttrs(Attribute[] memory attributes) public pure returns (string memory) {\n        bytes memory bytes_;\n        bytes_ = abi.encodePacked(bytes_, _openArray());\n        for (uint i = 0; i < attributes.length; i++) {\n            Attribute memory attribute = attributes[i];\n            bytes_ = abi.encodePacked(bytes_, _pushArray(_serializeAttr(attribute), i == attributes.length - 1));\n        }\n        bytes_ = abi.encodePacked(bytes_, _closeArray());\n        return string(bytes_);\n    }\n\n    function _serializeAttr(Attribute memory attribute) public pure returns (string memory) {\n        bytes memory bytes_;\n        bytes_ = abi.encodePacked(bytes_, _openObject());\n        if (bytes(attribute.displayType).length > 0) {\n            bytes_ = abi.encodePacked(bytes_, _pushAttr(\"display_type\", attribute.displayType, true, false));\n        }\n        if (bytes(attribute.maxValue).length > 0) {\n            bytes_ = abi.encodePacked(bytes_, _pushAttr(\"max_value\", attribute.maxValue, attribute.isString, false));\n        }\n        bytes_ = abi.encodePacked(bytes_, _pushAttr(\"trait_type\", attribute.traitType, true, false));\n        bytes_ = abi.encodePacked(bytes_, _pushAttr(\"value\", attribute.value, attribute.isString, true));\n        bytes_ = abi.encodePacked(bytes_, _closeObject());\n        return string(bytes_);\n    }\n\n    // Objects\n    function _openObject() public pure returns (bytes memory) {\n        return abi.encodePacked(\"{\");\n    }\n\n    function _closeObject() public pure returns (bytes memory) {\n        return abi.encodePacked(\"}\");\n    }\n\n    function _pushAttr(\n        string memory key,\n        string memory value,\n        bool isStr,\n        bool isLast\n    ) public pure returns (bytes memory) {\n        if (isStr) value = string.concat('\"', value, '\"');\n        return abi.encodePacked('\"', key, '\": ', value, isLast ? \"\" : \",\");\n    }\n\n    // Arrays\n    function _openArray() public pure returns (bytes memory) {\n        return abi.encodePacked(\"[\");\n    }\n\n    function _closeArray() public pure returns (bytes memory) {\n        return abi.encodePacked(\"]\");\n    }\n\n    function _pushArray(string memory value, bool isLast) public pure returns (bytes memory) {\n        return abi.encodePacked(value, isLast ? \"\" : \",\");\n    }\n\n    function toColorStr(Color color, Color toColor) public pure returns (string memory) {\n        return\n            toColor == Color.NO_COLOR\n                ? _toColorStr(color)\n                : string.concat(_toColorStr(color), \"-\", _toColorStr(toColor));\n    }\n\n    function toGradeStr(Grade grade) public pure returns (string memory) {\n        if (grade == Grade.GOOD) return \"Good\";\n        if (grade == Grade.VERY_GOOD) return \"Very Good\";\n        if (grade == Grade.EXCELLENT) return \"Excellent\";\n        revert();\n    }\n\n    function toClarityStr(Clarity clarity) public pure returns (string memory) {\n        if (clarity == Clarity.VS2) return \"VS2\";\n        if (clarity == Clarity.VS1) return \"VS1\";\n        if (clarity == Clarity.VVS2) return \"VVS2\";\n        if (clarity == Clarity.VVS1) return \"VVS1\";\n        if (clarity == Clarity.IF) return \"IF\";\n        if (clarity == Clarity.FL) return \"FL\";\n        revert();\n    }\n\n    function toFluorescenceStr(Fluorescence fluorescence) public pure returns (string memory) {\n        if (fluorescence == Fluorescence.FAINT) return \"Faint\";\n        if (fluorescence == Fluorescence.NONE) return \"None\";\n        revert();\n    }\n\n    function toMeasurementsStr(\n        bool isRound,\n        uint16 length,\n        uint16 width,\n        uint16 depth\n    ) public pure returns (string memory) {\n        string memory separator = isRound ? \" - \" : \" x \";\n        return string.concat(toDecimalStr(length), separator, toDecimalStr(width), \" x \", toDecimalStr(depth));\n    }\n\n    function toShapeStr(Shape shape) public pure returns (string memory) {\n        if (shape == Shape.PEAR) return \"Pear\";\n        if (shape == Shape.ROUND) return \"Round\";\n        if (shape == Shape.OVAL) return \"Oval\";\n        if (shape == Shape.CUSHION) return \"Cushion\";\n        revert();\n    }\n\n    function toRoughShapeStr(RoughShape shape) public pure returns (string memory) {\n        if (shape == RoughShape.MAKEABLE_1) return \"Makeable 1\";\n        if (shape == RoughShape.MAKEABLE_2) return \"Makeable 2\";\n        revert();\n    }\n\n    function getName(Metadata memory metadata, uint tokenId) public pure returns (string memory) {\n        if (metadata.state_ == Stage.KEY) return string.concat(\"Mine Key #\", Strings.toString(tokenId));\n        if (metadata.state_ == Stage.MINE) return string.concat(\"Rough Stone #\", Strings.toString(metadata.rough.id));\n        if (metadata.state_ == Stage.CUT) return string.concat(\"Formation #\", Strings.toString(metadata.cut.id));\n        if (metadata.state_ == Stage.POLISH) return string.concat(\"Diamond #\", Strings.toString(metadata.polished.id));\n        if (metadata.state_ == Stage.DAWN) return string.concat(\"Dawn #\", Strings.toString(metadata.reborn.id));\n        revert();\n    }\n\n    function toDecimalStr(uint percentage) public pure returns (string memory) {\n        uint remainder = percentage % 100;\n        string memory quotient = Strings.toString(percentage / 100);\n        if (remainder < 10) return string.concat(quotient, \".0\", Strings.toString(remainder));\n        return string.concat(quotient, \".\", Strings.toString(remainder));\n    }\n\n    function toTypeStr(Stage state_) public pure returns (string memory) {\n        if (state_ == Stage.KEY) return \"Key\";\n        if (state_ == Stage.MINE || state_ == Stage.CUT || state_ == Stage.POLISH) return \"Diamond\";\n        if (state_ == Stage.DAWN) return \"Certificate\";\n        revert();\n    }\n\n    function toStageStr(Stage state_) public pure returns (string memory) {\n        if (state_ == Stage.MINE) return \"Rough\";\n        if (state_ == Stage.CUT) return \"Cut\";\n        if (state_ == Stage.POLISH) return \"Polished\";\n        if (state_ == Stage.DAWN) return \"Reborn\";\n        revert();\n    }\n\n    function _toColorStr(Color color) public pure returns (string memory) {\n        if (color == Color.K) return \"K\";\n        if (color == Color.L) return \"L\";\n        if (color == Color.M) return \"M\";\n        if (color == Color.N) return \"N\";\n        if (color == Color.O) return \"O\";\n        if (color == Color.P) return \"P\";\n        if (color == Color.Q) return \"Q\";\n        if (color == Color.R) return \"R\";\n        if (color == Color.S) return \"S\";\n        if (color == Color.T) return \"T\";\n        if (color == Color.U) return \"U\";\n        if (color == Color.V) return \"V\";\n        if (color == Color.W) return \"W\";\n        if (color == Color.X) return \"X\";\n        if (color == Color.Y) return \"Y\";\n        if (color == Color.Z) return \"Z\";\n        revert();\n    }\n}\n"
    }
  },
  "settings": {
    "optimizer": {
      "enabled": true,
      "runs": 200
    },
    "viaIR": true,
    "outputSelection": {
      "*": {
        "*": [
          "evm.bytecode",
          "evm.deployedBytecode",
          "devdoc",
          "userdoc",
          "metadata",
          "abi"
        ]
      }
    },
    "libraries": {
      "contracts/utils/Serializer.sol": {
        "Serializer": "0xc694ba737b78e9564142f608fa4aad890b4bacba"
      }
    }
  }
}