organized_contracts/0b/0b012cc283906528c307c34277a4c56171474fff73c23f3975bed251f8f2f173/contract.json

{
  "language": "Solidity",
  "sources": {
    "@chainlink/contracts/src/v0.8/interfaces/VRFCoordinatorV2Interface.sol": {
      "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\ninterface VRFCoordinatorV2Interface {\n  /**\n   * @notice Get configuration relevant for making requests\n   * @return minimumRequestConfirmations global min for request confirmations\n   * @return maxGasLimit global max for request gas limit\n   * @return s_provingKeyHashes list of registered key hashes\n   */\n  function getRequestConfig()\n    external\n    view\n    returns (\n      uint16,\n      uint32,\n      bytes32[] memory\n    );\n\n  /**\n   * @notice Request a set of random words.\n   * @param keyHash - Corresponds to a particular oracle job which uses\n   * that key for generating the VRF proof. Different keyHash's have different gas price\n   * ceilings, so you can select a specific one to bound your maximum per request cost.\n   * @param subId  - The ID of the VRF subscription. Must be funded\n   * with the minimum subscription balance required for the selected keyHash.\n   * @param minimumRequestConfirmations - How many blocks you'd like the\n   * oracle to wait before responding to the request. See SECURITY CONSIDERATIONS\n   * for why you may want to request more. The acceptable range is\n   * [minimumRequestBlockConfirmations, 200].\n   * @param callbackGasLimit - How much gas you'd like to receive in your\n   * fulfillRandomWords callback. Note that gasleft() inside fulfillRandomWords\n   * may be slightly less than this amount because of gas used calling the function\n   * (argument decoding etc.), so you may need to request slightly more than you expect\n   * to have inside fulfillRandomWords. The acceptable range is\n   * [0, maxGasLimit]\n   * @param numWords - The number of uint256 random values you'd like to receive\n   * in your fulfillRandomWords callback. Note these numbers are expanded in a\n   * secure way by the VRFCoordinator from a single random value supplied by the oracle.\n   * @return requestId - A unique identifier of the request. Can be used to match\n   * a request to a response in fulfillRandomWords.\n   */\n  function requestRandomWords(\n    bytes32 keyHash,\n    uint64 subId,\n    uint16 minimumRequestConfirmations,\n    uint32 callbackGasLimit,\n    uint32 numWords\n  ) external returns (uint256 requestId);\n\n  /**\n   * @notice Create a VRF subscription.\n   * @return subId - A unique subscription id.\n   * @dev You can manage the consumer set dynamically with addConsumer/removeConsumer.\n   * @dev Note to fund the subscription, use transferAndCall. For example\n   * @dev  LINKTOKEN.transferAndCall(\n   * @dev    address(COORDINATOR),\n   * @dev    amount,\n   * @dev    abi.encode(subId));\n   */\n  function createSubscription() external returns (uint64 subId);\n\n  /**\n   * @notice Get a VRF subscription.\n   * @param subId - ID of the subscription\n   * @return balance - LINK balance of the subscription in juels.\n   * @return reqCount - number of requests for this subscription, determines fee tier.\n   * @return owner - owner of the subscription.\n   * @return consumers - list of consumer address which are able to use this subscription.\n   */\n  function getSubscription(uint64 subId)\n    external\n    view\n    returns (\n      uint96 balance,\n      uint64 reqCount,\n      address owner,\n      address[] memory consumers\n    );\n\n  /**\n   * @notice Request subscription owner transfer.\n   * @param subId - ID of the subscription\n   * @param newOwner - proposed new owner of the subscription\n   */\n  function requestSubscriptionOwnerTransfer(uint64 subId, address newOwner) external;\n\n  /**\n   * @notice Request subscription owner transfer.\n   * @param subId - ID of the subscription\n   * @dev will revert if original owner of subId has\n   * not requested that msg.sender become the new owner.\n   */\n  function acceptSubscriptionOwnerTransfer(uint64 subId) external;\n\n  /**\n   * @notice Add a consumer to a VRF subscription.\n   * @param subId - ID of the subscription\n   * @param consumer - New consumer which can use the subscription\n   */\n  function addConsumer(uint64 subId, address consumer) external;\n\n  /**\n   * @notice Remove a consumer from a VRF subscription.\n   * @param subId - ID of the subscription\n   * @param consumer - Consumer to remove from the subscription\n   */\n  function removeConsumer(uint64 subId, address consumer) external;\n\n  /**\n   * @notice Cancel a subscription\n   * @param subId - ID of the subscription\n   * @param to - Where to send the remaining LINK to\n   */\n  function cancelSubscription(uint64 subId, address to) external;\n\n  /*\n   * @notice Check to see if there exists a request commitment consumers\n   * for all consumers and keyhashes for a given sub.\n   * @param subId - ID of the subscription\n   * @return true if there exists at least one unfulfilled request for the subscription, false\n   * otherwise.\n   */\n  function pendingRequestExists(uint64 subId) external view returns (bool);\n}\n"
    },
    "@chainlink/contracts/src/v0.8/VRFConsumerBaseV2.sol": {
      "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.4;\n\n/** ****************************************************************************\n * @notice Interface for contracts using VRF randomness\n * *****************************************************************************\n * @dev PURPOSE\n *\n * @dev Reggie the Random Oracle (not his real job) wants to provide randomness\n * @dev to Vera the verifier in such a way that Vera can be sure he's not\n * @dev making his output up to suit himself. Reggie provides Vera a public key\n * @dev to which he knows the secret key. Each time Vera provides a seed to\n * @dev Reggie, he gives back a value which is computed completely\n * @dev deterministically from the seed and the secret key.\n *\n * @dev Reggie provides a proof by which Vera can verify that the output was\n * @dev correctly computed once Reggie tells it to her, but without that proof,\n * @dev the output is indistinguishable to her from a uniform random sample\n * @dev from the output space.\n *\n * @dev The purpose of this contract is to make it easy for unrelated contracts\n * @dev to talk to Vera the verifier about the work Reggie is doing, to provide\n * @dev simple access to a verifiable source of randomness. It ensures 2 things:\n * @dev 1. The fulfillment came from the VRFCoordinator\n * @dev 2. The consumer contract implements fulfillRandomWords.\n * *****************************************************************************\n * @dev USAGE\n *\n * @dev Calling contracts must inherit from VRFConsumerBase, and can\n * @dev initialize VRFConsumerBase's attributes in their constructor as\n * @dev shown:\n *\n * @dev   contract VRFConsumer {\n * @dev     constructor(<other arguments>, address _vrfCoordinator, address _link)\n * @dev       VRFConsumerBase(_vrfCoordinator) public {\n * @dev         <initialization with other arguments goes here>\n * @dev       }\n * @dev   }\n *\n * @dev The oracle will have given you an ID for the VRF keypair they have\n * @dev committed to (let's call it keyHash). Create subscription, fund it\n * @dev and your consumer contract as a consumer of it (see VRFCoordinatorInterface\n * @dev subscription management functions).\n * @dev Call requestRandomWords(keyHash, subId, minimumRequestConfirmations,\n * @dev callbackGasLimit, numWords),\n * @dev see (VRFCoordinatorInterface for a description of the arguments).\n *\n * @dev Once the VRFCoordinator has received and validated the oracle's response\n * @dev to your request, it will call your contract's fulfillRandomWords method.\n *\n * @dev The randomness argument to fulfillRandomWords is a set of random words\n * @dev generated from your requestId and the blockHash of the request.\n *\n * @dev If your contract could have concurrent requests open, you can use the\n * @dev requestId returned from requestRandomWords to track which response is associated\n * @dev with which randomness request.\n * @dev See \"SECURITY CONSIDERATIONS\" for principles to keep in mind,\n * @dev if your contract could have multiple requests in flight simultaneously.\n *\n * @dev Colliding `requestId`s are cryptographically impossible as long as seeds\n * @dev differ.\n *\n * *****************************************************************************\n * @dev SECURITY CONSIDERATIONS\n *\n * @dev A method with the ability to call your fulfillRandomness method directly\n * @dev could spoof a VRF response with any random value, so it's critical that\n * @dev it cannot be directly called by anything other than this base contract\n * @dev (specifically, by the VRFConsumerBase.rawFulfillRandomness method).\n *\n * @dev For your users to trust that your contract's random behavior is free\n * @dev from malicious interference, it's best if you can write it so that all\n * @dev behaviors implied by a VRF response are executed *during* your\n * @dev fulfillRandomness method. If your contract must store the response (or\n * @dev anything derived from it) and use it later, you must ensure that any\n * @dev user-significant behavior which depends on that stored value cannot be\n * @dev manipulated by a subsequent VRF request.\n *\n * @dev Similarly, both miners and the VRF oracle itself have some influence\n * @dev over the order in which VRF responses appear on the blockchain, so if\n * @dev your contract could have multiple VRF requests in flight simultaneously,\n * @dev you must ensure that the order in which the VRF responses arrive cannot\n * @dev be used to manipulate your contract's user-significant behavior.\n *\n * @dev Since the block hash of the block which contains the requestRandomness\n * @dev call is mixed into the input to the VRF *last*, a sufficiently powerful\n * @dev miner could, in principle, fork the blockchain to evict the block\n * @dev containing the request, forcing the request to be included in a\n * @dev different block with a different hash, and therefore a different input\n * @dev to the VRF. However, such an attack would incur a substantial economic\n * @dev cost. This cost scales with the number of blocks the VRF oracle waits\n * @dev until it calls responds to a request. It is for this reason that\n * @dev that you can signal to an oracle you'd like them to wait longer before\n * @dev responding to the request (however this is not enforced in the contract\n * @dev and so remains effective only in the case of unmodified oracle software).\n */\nabstract contract VRFConsumerBaseV2 {\n  error OnlyCoordinatorCanFulfill(address have, address want);\n  address private immutable vrfCoordinator;\n\n  /**\n   * @param _vrfCoordinator address of VRFCoordinator contract\n   */\n  constructor(address _vrfCoordinator) {\n    vrfCoordinator = _vrfCoordinator;\n  }\n\n  /**\n   * @notice fulfillRandomness handles the VRF response. Your contract must\n   * @notice implement it. See \"SECURITY CONSIDERATIONS\" above for important\n   * @notice principles to keep in mind when implementing your fulfillRandomness\n   * @notice method.\n   *\n   * @dev VRFConsumerBaseV2 expects its subcontracts to have a method with this\n   * @dev signature, and will call it once it has verified the proof\n   * @dev associated with the randomness. (It is triggered via a call to\n   * @dev rawFulfillRandomness, below.)\n   *\n   * @param requestId The Id initially returned by requestRandomness\n   * @param randomWords the VRF output expanded to the requested number of words\n   */\n  function fulfillRandomWords(uint256 requestId, uint256[] memory randomWords) internal virtual;\n\n  // rawFulfillRandomness is called by VRFCoordinator when it receives a valid VRF\n  // proof. rawFulfillRandomness then calls fulfillRandomness, after validating\n  // the origin of the call\n  function rawFulfillRandomWords(uint256 requestId, uint256[] memory randomWords) external {\n    if (msg.sender != vrfCoordinator) {\n      revert OnlyCoordinatorCanFulfill(msg.sender, vrfCoordinator);\n    }\n    fulfillRandomWords(requestId, randomWords);\n  }\n}\n"
    },
    "@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/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/Ownable.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../utils/Context.sol\";\n\n/**\n * @dev Contract module which provides a basic access control mechanism, where\n * there is an account (an owner) that can be granted exclusive access to\n * specific functions.\n *\n * By default, the owner account will be the one that deploys the contract. This\n * can later be changed with {transferOwnership}.\n *\n * This module is used through inheritance. It will make available the modifier\n * `onlyOwner`, which can be applied to your functions to restrict their use to\n * the owner.\n */\nabstract contract Ownable is Context {\n    address private _owner;\n\n    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);\n\n    /**\n     * @dev Initializes the contract setting the deployer as the initial owner.\n     */\n    constructor() {\n        _transferOwnership(_msgSender());\n    }\n\n    /**\n     * @dev Throws if called by any account other than the owner.\n     */\n    modifier onlyOwner() {\n        _checkOwner();\n        _;\n    }\n\n    /**\n     * @dev Returns the address of the current owner.\n     */\n    function owner() public view virtual returns (address) {\n        return _owner;\n    }\n\n    /**\n     * @dev Throws if the sender is not the owner.\n     */\n    function _checkOwner() internal view virtual {\n        require(owner() == _msgSender(), \"Ownable: caller is not the owner\");\n    }\n\n    /**\n     * @dev Leaves the contract without owner. It will not be possible to call\n     * `onlyOwner` functions anymore. Can only be called by the current owner.\n     *\n     * NOTE: Renouncing ownership will leave the contract without an owner,\n     * thereby removing any functionality that is only available to the owner.\n     */\n    function renounceOwnership() public virtual onlyOwner {\n        _transferOwnership(address(0));\n    }\n\n    /**\n     * @dev Transfers ownership of the contract to a new account (`newOwner`).\n     * Can only be called by the current owner.\n     */\n    function transferOwnership(address newOwner) public virtual onlyOwner {\n        require(newOwner != address(0), \"Ownable: new owner is the zero address\");\n        _transferOwnership(newOwner);\n    }\n\n    /**\n     * @dev Transfers ownership of the contract to a new account (`newOwner`).\n     * Internal function without access restriction.\n     */\n    function _transferOwnership(address newOwner) internal virtual {\n        address oldOwner = _owner;\n        _owner = newOwner;\n        emit OwnershipTransferred(oldOwner, newOwner);\n    }\n}\n"
    },
    "@openzeppelin/contracts/token/ERC20/ERC20.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC20/ERC20.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./IERC20.sol\";\nimport \"./extensions/IERC20Metadata.sol\";\nimport \"../../utils/Context.sol\";\n\n/**\n * @dev Implementation of the {IERC20} interface.\n *\n * This implementation is agnostic to the way tokens are created. This means\n * that a supply mechanism has to be added in a derived contract using {_mint}.\n * For a generic mechanism see {ERC20PresetMinterPauser}.\n *\n * TIP: For a detailed writeup see our guide\n * https://forum.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How\n * to implement supply mechanisms].\n *\n * We have followed general OpenZeppelin Contracts guidelines: functions revert\n * instead returning `false` on failure. This behavior is nonetheless\n * conventional and does not conflict with the expectations of ERC20\n * applications.\n *\n * Additionally, an {Approval} event is emitted on calls to {transferFrom}.\n * This allows applications to reconstruct the allowance for all accounts just\n * by listening to said events. Other implementations of the EIP may not emit\n * these events, as it isn't required by the specification.\n *\n * Finally, the non-standard {decreaseAllowance} and {increaseAllowance}\n * functions have been added to mitigate the well-known issues around setting\n * allowances. See {IERC20-approve}.\n */\ncontract ERC20 is Context, IERC20, IERC20Metadata {\n    mapping(address => uint256) private _balances;\n\n    mapping(address => mapping(address => uint256)) private _allowances;\n\n    uint256 private _totalSupply;\n\n    string private _name;\n    string private _symbol;\n\n    /**\n     * @dev Sets the values for {name} and {symbol}.\n     *\n     * The default value of {decimals} is 18. To select a different value for\n     * {decimals} you should overload it.\n     *\n     * All two of these values are immutable: they can only be set once during\n     * construction.\n     */\n    constructor(string memory name_, string memory symbol_) {\n        _name = name_;\n        _symbol = symbol_;\n    }\n\n    /**\n     * @dev Returns the name of the token.\n     */\n    function name() public view virtual override returns (string memory) {\n        return _name;\n    }\n\n    /**\n     * @dev Returns the symbol of the token, usually a shorter version of the\n     * name.\n     */\n    function symbol() public view virtual override returns (string memory) {\n        return _symbol;\n    }\n\n    /**\n     * @dev Returns the number of decimals used to get its user representation.\n     * For example, if `decimals` equals `2`, a balance of `505` tokens should\n     * be displayed to a user as `5.05` (`505 / 10 ** 2`).\n     *\n     * Tokens usually opt for a value of 18, imitating the relationship between\n     * Ether and Wei. This is the value {ERC20} uses, unless this function is\n     * overridden;\n     *\n     * NOTE: This information is only used for _display_ purposes: it in\n     * no way affects any of the arithmetic of the contract, including\n     * {IERC20-balanceOf} and {IERC20-transfer}.\n     */\n    function decimals() public view virtual override returns (uint8) {\n        return 18;\n    }\n\n    /**\n     * @dev See {IERC20-totalSupply}.\n     */\n    function totalSupply() public view virtual override returns (uint256) {\n        return _totalSupply;\n    }\n\n    /**\n     * @dev See {IERC20-balanceOf}.\n     */\n    function balanceOf(address account) public view virtual override returns (uint256) {\n        return _balances[account];\n    }\n\n    /**\n     * @dev See {IERC20-transfer}.\n     *\n     * Requirements:\n     *\n     * - `to` cannot be the zero address.\n     * - the caller must have a balance of at least `amount`.\n     */\n    function transfer(address to, uint256 amount) public virtual override returns (bool) {\n        address owner = _msgSender();\n        _transfer(owner, to, amount);\n        return true;\n    }\n\n    /**\n     * @dev See {IERC20-allowance}.\n     */\n    function allowance(address owner, address spender) public view virtual override returns (uint256) {\n        return _allowances[owner][spender];\n    }\n\n    /**\n     * @dev See {IERC20-approve}.\n     *\n     * NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on\n     * `transferFrom`. This is semantically equivalent to an infinite approval.\n     *\n     * Requirements:\n     *\n     * - `spender` cannot be the zero address.\n     */\n    function approve(address spender, uint256 amount) public virtual override returns (bool) {\n        address owner = _msgSender();\n        _approve(owner, spender, amount);\n        return true;\n    }\n\n    /**\n     * @dev See {IERC20-transferFrom}.\n     *\n     * Emits an {Approval} event indicating the updated allowance. This is not\n     * required by the EIP. See the note at the beginning of {ERC20}.\n     *\n     * NOTE: Does not update the allowance if the current allowance\n     * is the maximum `uint256`.\n     *\n     * Requirements:\n     *\n     * - `from` and `to` cannot be the zero address.\n     * - `from` must have a balance of at least `amount`.\n     * - the caller must have allowance for ``from``'s tokens of at least\n     * `amount`.\n     */\n    function transferFrom(\n        address from,\n        address to,\n        uint256 amount\n    ) public virtual override returns (bool) {\n        address spender = _msgSender();\n        _spendAllowance(from, spender, amount);\n        _transfer(from, to, amount);\n        return true;\n    }\n\n    /**\n     * @dev Atomically increases the allowance granted to `spender` by the caller.\n     *\n     * This is an alternative to {approve} that can be used as a mitigation for\n     * problems described in {IERC20-approve}.\n     *\n     * Emits an {Approval} event indicating the updated allowance.\n     *\n     * Requirements:\n     *\n     * - `spender` cannot be the zero address.\n     */\n    function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {\n        address owner = _msgSender();\n        _approve(owner, spender, allowance(owner, spender) + addedValue);\n        return true;\n    }\n\n    /**\n     * @dev Atomically decreases the allowance granted to `spender` by the caller.\n     *\n     * This is an alternative to {approve} that can be used as a mitigation for\n     * problems described in {IERC20-approve}.\n     *\n     * Emits an {Approval} event indicating the updated allowance.\n     *\n     * Requirements:\n     *\n     * - `spender` cannot be the zero address.\n     * - `spender` must have allowance for the caller of at least\n     * `subtractedValue`.\n     */\n    function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {\n        address owner = _msgSender();\n        uint256 currentAllowance = allowance(owner, spender);\n        require(currentAllowance >= subtractedValue, \"ERC20: decreased allowance below zero\");\n        unchecked {\n            _approve(owner, spender, currentAllowance - subtractedValue);\n        }\n\n        return true;\n    }\n\n    /**\n     * @dev Moves `amount` of tokens from `from` to `to`.\n     *\n     * This internal function is equivalent to {transfer}, and can be used to\n     * e.g. implement automatic token fees, slashing mechanisms, etc.\n     *\n     * Emits a {Transfer} event.\n     *\n     * Requirements:\n     *\n     * - `from` cannot be the zero address.\n     * - `to` cannot be the zero address.\n     * - `from` must have a balance of at least `amount`.\n     */\n    function _transfer(\n        address from,\n        address to,\n        uint256 amount\n    ) internal virtual {\n        require(from != address(0), \"ERC20: transfer from the zero address\");\n        require(to != address(0), \"ERC20: transfer to the zero address\");\n\n        _beforeTokenTransfer(from, to, amount);\n\n        uint256 fromBalance = _balances[from];\n        require(fromBalance >= amount, \"ERC20: transfer amount exceeds balance\");\n        unchecked {\n            _balances[from] = fromBalance - amount;\n            // Overflow not possible: the sum of all balances is capped by totalSupply, and the sum is preserved by\n            // decrementing then incrementing.\n            _balances[to] += amount;\n        }\n\n        emit Transfer(from, to, amount);\n\n        _afterTokenTransfer(from, to, amount);\n    }\n\n    /** @dev Creates `amount` tokens and assigns them to `account`, increasing\n     * the total supply.\n     *\n     * Emits a {Transfer} event with `from` set to the zero address.\n     *\n     * Requirements:\n     *\n     * - `account` cannot be the zero address.\n     */\n    function _mint(address account, uint256 amount) internal virtual {\n        require(account != address(0), \"ERC20: mint to the zero address\");\n\n        _beforeTokenTransfer(address(0), account, amount);\n\n        _totalSupply += amount;\n        unchecked {\n            // Overflow not possible: balance + amount is at most totalSupply + amount, which is checked above.\n            _balances[account] += amount;\n        }\n        emit Transfer(address(0), account, amount);\n\n        _afterTokenTransfer(address(0), account, amount);\n    }\n\n    /**\n     * @dev Destroys `amount` tokens from `account`, reducing the\n     * total supply.\n     *\n     * Emits a {Transfer} event with `to` set to the zero address.\n     *\n     * Requirements:\n     *\n     * - `account` cannot be the zero address.\n     * - `account` must have at least `amount` tokens.\n     */\n    function _burn(address account, uint256 amount) internal virtual {\n        require(account != address(0), \"ERC20: burn from the zero address\");\n\n        _beforeTokenTransfer(account, address(0), amount);\n\n        uint256 accountBalance = _balances[account];\n        require(accountBalance >= amount, \"ERC20: burn amount exceeds balance\");\n        unchecked {\n            _balances[account] = accountBalance - amount;\n            // Overflow not possible: amount <= accountBalance <= totalSupply.\n            _totalSupply -= amount;\n        }\n\n        emit Transfer(account, address(0), amount);\n\n        _afterTokenTransfer(account, address(0), amount);\n    }\n\n    /**\n     * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.\n     *\n     * This internal function is equivalent to `approve`, and can be used to\n     * e.g. set automatic allowances for certain subsystems, etc.\n     *\n     * Emits an {Approval} event.\n     *\n     * Requirements:\n     *\n     * - `owner` cannot be the zero address.\n     * - `spender` cannot be the zero address.\n     */\n    function _approve(\n        address owner,\n        address spender,\n        uint256 amount\n    ) internal virtual {\n        require(owner != address(0), \"ERC20: approve from the zero address\");\n        require(spender != address(0), \"ERC20: approve to the zero address\");\n\n        _allowances[owner][spender] = amount;\n        emit Approval(owner, spender, amount);\n    }\n\n    /**\n     * @dev Updates `owner` s allowance for `spender` based on spent `amount`.\n     *\n     * Does not update the allowance amount in case of infinite allowance.\n     * Revert if not enough allowance is available.\n     *\n     * Might emit an {Approval} event.\n     */\n    function _spendAllowance(\n        address owner,\n        address spender,\n        uint256 amount\n    ) internal virtual {\n        uint256 currentAllowance = allowance(owner, spender);\n        if (currentAllowance != type(uint256).max) {\n            require(currentAllowance >= amount, \"ERC20: insufficient allowance\");\n            unchecked {\n                _approve(owner, spender, currentAllowance - amount);\n            }\n        }\n    }\n\n    /**\n     * @dev Hook that is called before any transfer of tokens. This includes\n     * minting and burning.\n     *\n     * Calling conditions:\n     *\n     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens\n     * will be transferred to `to`.\n     * - when `from` is zero, `amount` tokens will be minted for `to`.\n     * - when `to` is zero, `amount` of ``from``'s tokens will be burned.\n     * - `from` and `to` are never both zero.\n     *\n     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n     */\n    function _beforeTokenTransfer(\n        address from,\n        address to,\n        uint256 amount\n    ) internal virtual {}\n\n    /**\n     * @dev Hook that is called after any transfer of tokens. This includes\n     * minting and burning.\n     *\n     * Calling conditions:\n     *\n     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens\n     * has been transferred to `to`.\n     * - when `from` is zero, `amount` tokens have been minted for `to`.\n     * - when `to` is zero, `amount` of ``from``'s tokens have been burned.\n     * - `from` and `to` are never both zero.\n     *\n     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n     */\n    function _afterTokenTransfer(\n        address from,\n        address to,\n        uint256 amount\n    ) internal virtual {}\n}\n"
    },
    "@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../IERC20.sol\";\n\n/**\n * @dev Interface for the optional metadata functions from the ERC20 standard.\n *\n * _Available since v4.1._\n */\ninterface IERC20Metadata is IERC20 {\n    /**\n     * @dev Returns the name of the token.\n     */\n    function name() external view returns (string memory);\n\n    /**\n     * @dev Returns the symbol of the token.\n     */\n    function symbol() external view returns (string memory);\n\n    /**\n     * @dev Returns the decimals places of the token.\n     */\n    function decimals() external view returns (uint8);\n}\n"
    },
    "@openzeppelin/contracts/token/ERC20/IERC20.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC20 standard as defined in the EIP.\n */\ninterface IERC20 {\n    /**\n     * @dev Emitted when `value` tokens are moved from one account (`from`) to\n     * another (`to`).\n     *\n     * Note that `value` may be zero.\n     */\n    event Transfer(address indexed from, address indexed to, uint256 value);\n\n    /**\n     * @dev Emitted when the allowance of a `spender` for an `owner` is set by\n     * a call to {approve}. `value` is the new allowance.\n     */\n    event Approval(address indexed owner, address indexed spender, uint256 value);\n\n    /**\n     * @dev Returns the amount of tokens in existence.\n     */\n    function totalSupply() external view returns (uint256);\n\n    /**\n     * @dev Returns the amount of tokens owned by `account`.\n     */\n    function balanceOf(address account) external view returns (uint256);\n\n    /**\n     * @dev Moves `amount` tokens from the caller's account to `to`.\n     *\n     * Returns a boolean value indicating whether the operation succeeded.\n     *\n     * Emits a {Transfer} event.\n     */\n    function transfer(address to, uint256 amount) external returns (bool);\n\n    /**\n     * @dev Returns the remaining number of tokens that `spender` will be\n     * allowed to spend on behalf of `owner` through {transferFrom}. This is\n     * zero by default.\n     *\n     * This value changes when {approve} or {transferFrom} are called.\n     */\n    function allowance(address owner, address spender) external view returns (uint256);\n\n    /**\n     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\n     *\n     * Returns a boolean value indicating whether the operation succeeded.\n     *\n     * IMPORTANT: Beware that changing an allowance with this method brings the risk\n     * that someone may use both the old and the new allowance by unfortunate\n     * transaction ordering. One possible solution to mitigate this race\n     * condition is to first reduce the spender's allowance to 0 and set the\n     * desired value afterwards:\n     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n     *\n     * Emits an {Approval} event.\n     */\n    function approve(address spender, uint256 amount) external returns (bool);\n\n    /**\n     * @dev Moves `amount` tokens from `from` to `to` using the\n     * allowance mechanism. `amount` is then deducted from the caller's\n     * allowance.\n     *\n     * Returns a boolean value indicating whether the operation succeeded.\n     *\n     * Emits a {Transfer} event.\n     */\n    function transferFrom(\n        address from,\n        address to,\n        uint256 amount\n    ) external returns (bool);\n}\n"
    },
    "@openzeppelin/contracts/token/ERC721/ERC721.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/ERC721.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./IERC721.sol\";\nimport \"./IERC721Receiver.sol\";\nimport \"./extensions/IERC721Metadata.sol\";\nimport \"../../utils/Address.sol\";\nimport \"../../utils/Context.sol\";\nimport \"../../utils/Strings.sol\";\nimport \"../../utils/introspection/ERC165.sol\";\n\n/**\n * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including\n * the Metadata extension, but not including the Enumerable extension, which is available separately as\n * {ERC721Enumerable}.\n */\ncontract ERC721 is Context, ERC165, IERC721, IERC721Metadata {\n    using Address for address;\n    using Strings for uint256;\n\n    // Token name\n    string private _name;\n\n    // Token symbol\n    string private _symbol;\n\n    // Mapping from token ID to owner address\n    mapping(uint256 => address) private _owners;\n\n    // Mapping owner address to token count\n    mapping(address => uint256) private _balances;\n\n    // Mapping from token ID to approved address\n    mapping(uint256 => address) private _tokenApprovals;\n\n    // Mapping from owner to operator approvals\n    mapping(address => mapping(address => bool)) private _operatorApprovals;\n\n    /**\n     * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection.\n     */\n    constructor(string memory name_, string memory symbol_) {\n        _name = name_;\n        _symbol = symbol_;\n    }\n\n    /**\n     * @dev See {IERC165-supportsInterface}.\n     */\n    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {\n        return\n            interfaceId == type(IERC721).interfaceId ||\n            interfaceId == type(IERC721Metadata).interfaceId ||\n            super.supportsInterface(interfaceId);\n    }\n\n    /**\n     * @dev See {IERC721-balanceOf}.\n     */\n    function balanceOf(address owner) public view virtual override returns (uint256) {\n        require(owner != address(0), \"ERC721: address zero is not a valid owner\");\n        return _balances[owner];\n    }\n\n    /**\n     * @dev See {IERC721-ownerOf}.\n     */\n    function ownerOf(uint256 tokenId) public view virtual override returns (address) {\n        address owner = _ownerOf(tokenId);\n        require(owner != address(0), \"ERC721: invalid token ID\");\n        return owner;\n    }\n\n    /**\n     * @dev See {IERC721Metadata-name}.\n     */\n    function name() public view virtual override returns (string memory) {\n        return _name;\n    }\n\n    /**\n     * @dev See {IERC721Metadata-symbol}.\n     */\n    function symbol() public view virtual override returns (string memory) {\n        return _symbol;\n    }\n\n    /**\n     * @dev See {IERC721Metadata-tokenURI}.\n     */\n    function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {\n        _requireMinted(tokenId);\n\n        string memory baseURI = _baseURI();\n        return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : \"\";\n    }\n\n    /**\n     * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each\n     * token will be the concatenation of the `baseURI` and the `tokenId`. Empty\n     * by default, can be overridden in child contracts.\n     */\n    function _baseURI() internal view virtual returns (string memory) {\n        return \"\";\n    }\n\n    /**\n     * @dev See {IERC721-approve}.\n     */\n    function approve(address to, uint256 tokenId) public virtual override {\n        address owner = ERC721.ownerOf(tokenId);\n        require(to != owner, \"ERC721: approval to current owner\");\n\n        require(\n            _msgSender() == owner || isApprovedForAll(owner, _msgSender()),\n            \"ERC721: approve caller is not token owner or approved for all\"\n        );\n\n        _approve(to, tokenId);\n    }\n\n    /**\n     * @dev See {IERC721-getApproved}.\n     */\n    function getApproved(uint256 tokenId) public view virtual override returns (address) {\n        _requireMinted(tokenId);\n\n        return _tokenApprovals[tokenId];\n    }\n\n    /**\n     * @dev See {IERC721-setApprovalForAll}.\n     */\n    function setApprovalForAll(address operator, bool approved) public virtual override {\n        _setApprovalForAll(_msgSender(), operator, approved);\n    }\n\n    /**\n     * @dev See {IERC721-isApprovedForAll}.\n     */\n    function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {\n        return _operatorApprovals[owner][operator];\n    }\n\n    /**\n     * @dev See {IERC721-transferFrom}.\n     */\n    function transferFrom(\n        address from,\n        address to,\n        uint256 tokenId\n    ) public virtual override {\n        //solhint-disable-next-line max-line-length\n        require(_isApprovedOrOwner(_msgSender(), tokenId), \"ERC721: caller is not token owner or approved\");\n\n        _transfer(from, to, tokenId);\n    }\n\n    /**\n     * @dev See {IERC721-safeTransferFrom}.\n     */\n    function safeTransferFrom(\n        address from,\n        address to,\n        uint256 tokenId\n    ) public virtual override {\n        safeTransferFrom(from, to, tokenId, \"\");\n    }\n\n    /**\n     * @dev See {IERC721-safeTransferFrom}.\n     */\n    function safeTransferFrom(\n        address from,\n        address to,\n        uint256 tokenId,\n        bytes memory data\n    ) public virtual override {\n        require(_isApprovedOrOwner(_msgSender(), tokenId), \"ERC721: caller is not token owner or approved\");\n        _safeTransfer(from, to, tokenId, data);\n    }\n\n    /**\n     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients\n     * are aware of the ERC721 protocol to prevent tokens from being forever locked.\n     *\n     * `data` is additional data, it has no specified format and it is sent in call to `to`.\n     *\n     * This internal function is equivalent to {safeTransferFrom}, and can be used to e.g.\n     * implement alternative mechanisms to perform token transfer, such as signature-based.\n     *\n     * Requirements:\n     *\n     * - `from` cannot be the zero address.\n     * - `to` cannot be the zero address.\n     * - `tokenId` token must exist and be owned by `from`.\n     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n     *\n     * Emits a {Transfer} event.\n     */\n    function _safeTransfer(\n        address from,\n        address to,\n        uint256 tokenId,\n        bytes memory data\n    ) internal virtual {\n        _transfer(from, to, tokenId);\n        require(_checkOnERC721Received(from, to, tokenId, data), \"ERC721: transfer to non ERC721Receiver implementer\");\n    }\n\n    /**\n     * @dev Returns the owner of the `tokenId`. Does NOT revert if token doesn't exist\n     */\n    function _ownerOf(uint256 tokenId) internal view virtual returns (address) {\n        return _owners[tokenId];\n    }\n\n    /**\n     * @dev Returns whether `tokenId` exists.\n     *\n     * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.\n     *\n     * Tokens start existing when they are minted (`_mint`),\n     * and stop existing when they are burned (`_burn`).\n     */\n    function _exists(uint256 tokenId) internal view virtual returns (bool) {\n        return _ownerOf(tokenId) != address(0);\n    }\n\n    /**\n     * @dev Returns whether `spender` is allowed to manage `tokenId`.\n     *\n     * Requirements:\n     *\n     * - `tokenId` must exist.\n     */\n    function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) {\n        address owner = ERC721.ownerOf(tokenId);\n        return (spender == owner || isApprovedForAll(owner, spender) || getApproved(tokenId) == spender);\n    }\n\n    /**\n     * @dev Safely mints `tokenId` and transfers it to `to`.\n     *\n     * Requirements:\n     *\n     * - `tokenId` must not exist.\n     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n     *\n     * Emits a {Transfer} event.\n     */\n    function _safeMint(address to, uint256 tokenId) internal virtual {\n        _safeMint(to, tokenId, \"\");\n    }\n\n    /**\n     * @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is\n     * forwarded in {IERC721Receiver-onERC721Received} to contract recipients.\n     */\n    function _safeMint(\n        address to,\n        uint256 tokenId,\n        bytes memory data\n    ) internal virtual {\n        _mint(to, tokenId);\n        require(\n            _checkOnERC721Received(address(0), to, tokenId, data),\n            \"ERC721: transfer to non ERC721Receiver implementer\"\n        );\n    }\n\n    /**\n     * @dev Mints `tokenId` and transfers it to `to`.\n     *\n     * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible\n     *\n     * Requirements:\n     *\n     * - `tokenId` must not exist.\n     * - `to` cannot be the zero address.\n     *\n     * Emits a {Transfer} event.\n     */\n    function _mint(address to, uint256 tokenId) internal virtual {\n        require(to != address(0), \"ERC721: mint to the zero address\");\n        require(!_exists(tokenId), \"ERC721: token already minted\");\n\n        _beforeTokenTransfer(address(0), to, tokenId, 1);\n\n        // Check that tokenId was not minted by `_beforeTokenTransfer` hook\n        require(!_exists(tokenId), \"ERC721: token already minted\");\n\n        unchecked {\n            // Will not overflow unless all 2**256 token ids are minted to the same owner.\n            // Given that tokens are minted one by one, it is impossible in practice that\n            // this ever happens. Might change if we allow batch minting.\n            // The ERC fails to describe this case.\n            _balances[to] += 1;\n        }\n\n        _owners[tokenId] = to;\n\n        emit Transfer(address(0), to, tokenId);\n\n        _afterTokenTransfer(address(0), to, tokenId, 1);\n    }\n\n    /**\n     * @dev Destroys `tokenId`.\n     * The approval is cleared when the token is burned.\n     * This is an internal function that does not check if the sender is authorized to operate on the token.\n     *\n     * Requirements:\n     *\n     * - `tokenId` must exist.\n     *\n     * Emits a {Transfer} event.\n     */\n    function _burn(uint256 tokenId) internal virtual {\n        address owner = ERC721.ownerOf(tokenId);\n\n        _beforeTokenTransfer(owner, address(0), tokenId, 1);\n\n        // Update ownership in case tokenId was transferred by `_beforeTokenTransfer` hook\n        owner = ERC721.ownerOf(tokenId);\n\n        // Clear approvals\n        delete _tokenApprovals[tokenId];\n\n        unchecked {\n            // Cannot overflow, as that would require more tokens to be burned/transferred\n            // out than the owner initially received through minting and transferring in.\n            _balances[owner] -= 1;\n        }\n        delete _owners[tokenId];\n\n        emit Transfer(owner, address(0), tokenId);\n\n        _afterTokenTransfer(owner, address(0), tokenId, 1);\n    }\n\n    /**\n     * @dev Transfers `tokenId` from `from` to `to`.\n     *  As opposed to {transferFrom}, this imposes no restrictions on msg.sender.\n     *\n     * Requirements:\n     *\n     * - `to` cannot be the zero address.\n     * - `tokenId` token must be owned by `from`.\n     *\n     * Emits a {Transfer} event.\n     */\n    function _transfer(\n        address from,\n        address to,\n        uint256 tokenId\n    ) internal virtual {\n        require(ERC721.ownerOf(tokenId) == from, \"ERC721: transfer from incorrect owner\");\n        require(to != address(0), \"ERC721: transfer to the zero address\");\n\n        _beforeTokenTransfer(from, to, tokenId, 1);\n\n        // Check that tokenId was not transferred by `_beforeTokenTransfer` hook\n        require(ERC721.ownerOf(tokenId) == from, \"ERC721: transfer from incorrect owner\");\n\n        // Clear approvals from the previous owner\n        delete _tokenApprovals[tokenId];\n\n        unchecked {\n            // `_balances[from]` cannot overflow for the same reason as described in `_burn`:\n            // `from`'s balance is the number of token held, which is at least one before the current\n            // transfer.\n            // `_balances[to]` could overflow in the conditions described in `_mint`. That would require\n            // all 2**256 token ids to be minted, which in practice is impossible.\n            _balances[from] -= 1;\n            _balances[to] += 1;\n        }\n        _owners[tokenId] = to;\n\n        emit Transfer(from, to, tokenId);\n\n        _afterTokenTransfer(from, to, tokenId, 1);\n    }\n\n    /**\n     * @dev Approve `to` to operate on `tokenId`\n     *\n     * Emits an {Approval} event.\n     */\n    function _approve(address to, uint256 tokenId) internal virtual {\n        _tokenApprovals[tokenId] = to;\n        emit Approval(ERC721.ownerOf(tokenId), to, tokenId);\n    }\n\n    /**\n     * @dev Approve `operator` to operate on all of `owner` tokens\n     *\n     * Emits an {ApprovalForAll} event.\n     */\n    function _setApprovalForAll(\n        address owner,\n        address operator,\n        bool approved\n    ) internal virtual {\n        require(owner != operator, \"ERC721: approve to caller\");\n        _operatorApprovals[owner][operator] = approved;\n        emit ApprovalForAll(owner, operator, approved);\n    }\n\n    /**\n     * @dev Reverts if the `tokenId` has not been minted yet.\n     */\n    function _requireMinted(uint256 tokenId) internal view virtual {\n        require(_exists(tokenId), \"ERC721: invalid token ID\");\n    }\n\n    /**\n     * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.\n     * The call is not executed if the target address is not a contract.\n     *\n     * @param from address representing the previous owner of the given token ID\n     * @param to target address that will receive the tokens\n     * @param tokenId uint256 ID of the token to be transferred\n     * @param data bytes optional data to send along with the call\n     * @return bool whether the call correctly returned the expected magic value\n     */\n    function _checkOnERC721Received(\n        address from,\n        address to,\n        uint256 tokenId,\n        bytes memory data\n    ) private returns (bool) {\n        if (to.isContract()) {\n            try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, data) returns (bytes4 retval) {\n                return retval == IERC721Receiver.onERC721Received.selector;\n            } catch (bytes memory reason) {\n                if (reason.length == 0) {\n                    revert(\"ERC721: transfer to non ERC721Receiver implementer\");\n                } else {\n                    /// @solidity memory-safe-assembly\n                    assembly {\n                        revert(add(32, reason), mload(reason))\n                    }\n                }\n            }\n        } else {\n            return true;\n        }\n    }\n\n    /**\n     * @dev Hook that is called before any token transfer. This includes minting and burning. If {ERC721Consecutive} is\n     * used, the hook may be called as part of a consecutive (batch) mint, as indicated by `batchSize` greater than 1.\n     *\n     * Calling conditions:\n     *\n     * - When `from` and `to` are both non-zero, ``from``'s tokens will be transferred to `to`.\n     * - When `from` is zero, the tokens will be minted for `to`.\n     * - When `to` is zero, ``from``'s tokens will be burned.\n     * - `from` and `to` are never both zero.\n     * - `batchSize` is non-zero.\n     *\n     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n     */\n    function _beforeTokenTransfer(\n        address from,\n        address to,\n        uint256, /* firstTokenId */\n        uint256 batchSize\n    ) internal virtual {\n        if (batchSize > 1) {\n            if (from != address(0)) {\n                _balances[from] -= batchSize;\n            }\n            if (to != address(0)) {\n                _balances[to] += batchSize;\n            }\n        }\n    }\n\n    /**\n     * @dev Hook that is called after any token transfer. This includes minting and burning. If {ERC721Consecutive} is\n     * used, the hook may be called as part of a consecutive (batch) mint, as indicated by `batchSize` greater than 1.\n     *\n     * Calling conditions:\n     *\n     * - When `from` and `to` are both non-zero, ``from``'s tokens were transferred to `to`.\n     * - When `from` is zero, the tokens were minted for `to`.\n     * - When `to` is zero, ``from``'s tokens were burned.\n     * - `from` and `to` are never both zero.\n     * - `batchSize` is non-zero.\n     *\n     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n     */\n    function _afterTokenTransfer(\n        address from,\n        address to,\n        uint256 firstTokenId,\n        uint256 batchSize\n    ) internal virtual {}\n}\n"
    },
    "@openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../IERC721.sol\";\n\n/**\n * @title ERC-721 Non-Fungible Token Standard, optional metadata extension\n * @dev See https://eips.ethereum.org/EIPS/eip-721\n */\ninterface IERC721Metadata is IERC721 {\n    /**\n     * @dev Returns the token collection name.\n     */\n    function name() external view returns (string memory);\n\n    /**\n     * @dev Returns the token collection symbol.\n     */\n    function symbol() external view returns (string memory);\n\n    /**\n     * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.\n     */\n    function tokenURI(uint256 tokenId) external view returns (string memory);\n}\n"
    },
    "@openzeppelin/contracts/token/ERC721/IERC721.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/IERC721.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../../utils/introspection/IERC165.sol\";\n\n/**\n * @dev Required interface of an ERC721 compliant contract.\n */\ninterface IERC721 is IERC165 {\n    /**\n     * @dev Emitted when `tokenId` token is transferred from `from` to `to`.\n     */\n    event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);\n\n    /**\n     * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.\n     */\n    event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);\n\n    /**\n     * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.\n     */\n    event ApprovalForAll(address indexed owner, address indexed operator, bool approved);\n\n    /**\n     * @dev Returns the number of tokens in ``owner``'s account.\n     */\n    function balanceOf(address owner) external view returns (uint256 balance);\n\n    /**\n     * @dev Returns the owner of the `tokenId` token.\n     *\n     * Requirements:\n     *\n     * - `tokenId` must exist.\n     */\n    function ownerOf(uint256 tokenId) external view returns (address owner);\n\n    /**\n     * @dev Safely transfers `tokenId` token from `from` to `to`.\n     *\n     * Requirements:\n     *\n     * - `from` cannot be the zero address.\n     * - `to` cannot be the zero address.\n     * - `tokenId` token must exist and be owned by `from`.\n     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.\n     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n     *\n     * Emits a {Transfer} event.\n     */\n    function safeTransferFrom(\n        address from,\n        address to,\n        uint256 tokenId,\n        bytes calldata data\n    ) external;\n\n    /**\n     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients\n     * are aware of the ERC721 protocol to prevent tokens from being forever locked.\n     *\n     * Requirements:\n     *\n     * - `from` cannot be the zero address.\n     * - `to` cannot be the zero address.\n     * - `tokenId` token must exist and be owned by `from`.\n     * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}.\n     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n     *\n     * Emits a {Transfer} event.\n     */\n    function safeTransferFrom(\n        address from,\n        address to,\n        uint256 tokenId\n    ) external;\n\n    /**\n     * @dev Transfers `tokenId` token from `from` to `to`.\n     *\n     * WARNING: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC721\n     * or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must\n     * understand this adds an external call which potentially creates a reentrancy vulnerability.\n     *\n     * Requirements:\n     *\n     * - `from` cannot be the zero address.\n     * - `to` cannot be the zero address.\n     * - `tokenId` token must be owned by `from`.\n     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.\n     *\n     * Emits a {Transfer} event.\n     */\n    function transferFrom(\n        address from,\n        address to,\n        uint256 tokenId\n    ) external;\n\n    /**\n     * @dev Gives permission to `to` to transfer `tokenId` token to another account.\n     * The approval is cleared when the token is transferred.\n     *\n     * Only a single account can be approved at a time, so approving the zero address clears previous approvals.\n     *\n     * Requirements:\n     *\n     * - The caller must own the token or be an approved operator.\n     * - `tokenId` must exist.\n     *\n     * Emits an {Approval} event.\n     */\n    function approve(address to, uint256 tokenId) external;\n\n    /**\n     * @dev Approve or remove `operator` as an operator for the caller.\n     * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.\n     *\n     * Requirements:\n     *\n     * - The `operator` cannot be the caller.\n     *\n     * Emits an {ApprovalForAll} event.\n     */\n    function setApprovalForAll(address operator, bool _approved) external;\n\n    /**\n     * @dev Returns the account approved for `tokenId` token.\n     *\n     * Requirements:\n     *\n     * - `tokenId` must exist.\n     */\n    function getApproved(uint256 tokenId) external view returns (address operator);\n\n    /**\n     * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.\n     *\n     * See {setApprovalForAll}\n     */\n    function isApprovedForAll(address owner, address operator) external view returns (bool);\n}\n"
    },
    "@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @title ERC721 token receiver interface\n * @dev Interface for any contract that wants to support safeTransfers\n * from ERC721 asset contracts.\n */\ninterface IERC721Receiver {\n    /**\n     * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}\n     * by `operator` from `from`, this function is called.\n     *\n     * It must return its Solidity selector to confirm the token transfer.\n     * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.\n     *\n     * The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`.\n     */\n    function onERC721Received(\n        address operator,\n        address from,\n        uint256 tokenId,\n        bytes calldata data\n    ) external returns (bytes4);\n}\n"
    },
    "@openzeppelin/contracts/utils/Address.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.8.0) (utils/Address.sol)\n\npragma solidity ^0.8.1;\n\n/**\n * @dev Collection of functions related to the address type\n */\nlibrary Address {\n    /**\n     * @dev Returns true if `account` is a contract.\n     *\n     * [IMPORTANT]\n     * ====\n     * It is unsafe to assume that an address for which this function returns\n     * false is an externally-owned account (EOA) and not a contract.\n     *\n     * Among others, `isContract` will return false for the following\n     * types of addresses:\n     *\n     *  - an externally-owned account\n     *  - a contract in construction\n     *  - an address where a contract will be created\n     *  - an address where a contract lived, but was destroyed\n     * ====\n     *\n     * [IMPORTANT]\n     * ====\n     * You shouldn't rely on `isContract` to protect against flash loan attacks!\n     *\n     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets\n     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract\n     * constructor.\n     * ====\n     */\n    function isContract(address account) internal view returns (bool) {\n        // This method relies on extcodesize/address.code.length, which returns 0\n        // for contracts in construction, since the code is only stored at the end\n        // of the constructor execution.\n\n        return account.code.length > 0;\n    }\n\n    /**\n     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n     * `recipient`, forwarding all available gas and reverting on errors.\n     *\n     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n     * of certain opcodes, possibly making contracts go over the 2300 gas limit\n     * imposed by `transfer`, making them unable to receive funds via\n     * `transfer`. {sendValue} removes this limitation.\n     *\n     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n     *\n     * IMPORTANT: because control is transferred to `recipient`, care must be\n     * taken to not create reentrancy vulnerabilities. Consider using\n     * {ReentrancyGuard} or the\n     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n     */\n    function sendValue(address payable recipient, uint256 amount) internal {\n        require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n        (bool success, ) = recipient.call{value: amount}(\"\");\n        require(success, \"Address: unable to send value, recipient may have reverted\");\n    }\n\n    /**\n     * @dev Performs a Solidity function call using a low level `call`. A\n     * plain `call` is an unsafe replacement for a function call: use this\n     * function instead.\n     *\n     * If `target` reverts with a revert reason, it is bubbled up by this\n     * function (like regular Solidity function calls).\n     *\n     * Returns the raw returned data. To convert to the expected return value,\n     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n     *\n     * Requirements:\n     *\n     * - `target` must be a contract.\n     * - calling `target` with `data` must not revert.\n     *\n     * _Available since v3.1._\n     */\n    function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n        return functionCallWithValue(target, data, 0, \"Address: low-level call failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n     * `errorMessage` as a fallback revert reason when `target` reverts.\n     *\n     * _Available since v3.1._\n     */\n    function functionCall(\n        address target,\n        bytes memory data,\n        string memory errorMessage\n    ) internal returns (bytes memory) {\n        return functionCallWithValue(target, data, 0, errorMessage);\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n     * but also transferring `value` wei to `target`.\n     *\n     * Requirements:\n     *\n     * - the calling contract must have an ETH balance of at least `value`.\n     * - the called Solidity function must be `payable`.\n     *\n     * _Available since v3.1._\n     */\n    function functionCallWithValue(\n        address target,\n        bytes memory data,\n        uint256 value\n    ) internal returns (bytes memory) {\n        return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n     * with `errorMessage` as a fallback revert reason when `target` reverts.\n     *\n     * _Available since v3.1._\n     */\n    function functionCallWithValue(\n        address target,\n        bytes memory data,\n        uint256 value,\n        string memory errorMessage\n    ) internal returns (bytes memory) {\n        require(address(this).balance >= value, \"Address: insufficient balance for call\");\n        (bool success, bytes memory returndata) = target.call{value: value}(data);\n        return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n     * but performing a static call.\n     *\n     * _Available since v3.3._\n     */\n    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\n        return functionStaticCall(target, data, \"Address: low-level static call failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n     * but performing a static call.\n     *\n     * _Available since v3.3._\n     */\n    function functionStaticCall(\n        address target,\n        bytes memory data,\n        string memory errorMessage\n    ) internal view returns (bytes memory) {\n        (bool success, bytes memory returndata) = target.staticcall(data);\n        return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n     * but performing a delegate call.\n     *\n     * _Available since v3.4._\n     */\n    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {\n        return functionDelegateCall(target, data, \"Address: low-level delegate call failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n     * but performing a delegate call.\n     *\n     * _Available since v3.4._\n     */\n    function functionDelegateCall(\n        address target,\n        bytes memory data,\n        string memory errorMessage\n    ) internal returns (bytes memory) {\n        (bool success, bytes memory returndata) = target.delegatecall(data);\n        return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n    }\n\n    /**\n     * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling\n     * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.\n     *\n     * _Available since v4.8._\n     */\n    function verifyCallResultFromTarget(\n        address target,\n        bool success,\n        bytes memory returndata,\n        string memory errorMessage\n    ) internal view returns (bytes memory) {\n        if (success) {\n            if (returndata.length == 0) {\n                // only check isContract if the call was successful and the return data is empty\n                // otherwise we already know that it was a contract\n                require(isContract(target), \"Address: call to non-contract\");\n            }\n            return returndata;\n        } else {\n            _revert(returndata, errorMessage);\n        }\n    }\n\n    /**\n     * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the\n     * revert reason or using the provided one.\n     *\n     * _Available since v4.3._\n     */\n    function verifyCallResult(\n        bool success,\n        bytes memory returndata,\n        string memory errorMessage\n    ) internal pure returns (bytes memory) {\n        if (success) {\n            return returndata;\n        } else {\n            _revert(returndata, errorMessage);\n        }\n    }\n\n    function _revert(bytes memory returndata, string memory errorMessage) private pure {\n        // Look for revert reason and bubble it up if present\n        if (returndata.length > 0) {\n            // The easiest way to bubble the revert reason is using memory via assembly\n            /// @solidity memory-safe-assembly\n            assembly {\n                let returndata_size := mload(returndata)\n                revert(add(32, returndata), returndata_size)\n            }\n        } else {\n            revert(errorMessage);\n        }\n    }\n}\n"
    },
    "@openzeppelin/contracts/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/Counters.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/Counters.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @title Counters\n * @author Matt Condon (@shrugs)\n * @dev Provides counters that can only be incremented, decremented or reset. This can be used e.g. to track the number\n * of elements in a mapping, issuing ERC721 ids, or counting request ids.\n *\n * Include with `using Counters for Counters.Counter;`\n */\nlibrary Counters {\n    struct Counter {\n        // This variable should never be directly accessed by users of the library: interactions must be restricted to\n        // the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add\n        // this feature: see https://github.com/ethereum/solidity/issues/4637\n        uint256 _value; // default: 0\n    }\n\n    function current(Counter storage counter) internal view returns (uint256) {\n        return counter._value;\n    }\n\n    function increment(Counter storage counter) internal {\n        unchecked {\n            counter._value += 1;\n        }\n    }\n\n    function decrement(Counter storage counter) internal {\n        uint256 value = counter._value;\n        require(value > 0, \"Counter: decrement overflow\");\n        unchecked {\n            counter._value = value - 1;\n        }\n    }\n\n    function reset(Counter storage counter) internal {\n        counter._value = 0;\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"
    },
    "contracts/BlackSquareNFT.sol": {
      "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.7;\n\nimport '@openzeppelin/contracts/token/ERC721/ERC721.sol';\nimport './ERC2981/ERC2981ContractWideRoyalties.sol';\nimport \"@openzeppelin/contracts/utils/Counters.sol\";\nimport \"@openzeppelin/contracts/access/Ownable.sol\";\nimport \"./Erc721OperatorFilter/IOperatorFilter.sol\";\nimport \"./OBYToken.sol\";\n\n\ncontract BlackSquareNFT is ERC721, Ownable, ERC2981ContractWideRoyalties {\n    using Strings for uint256;\n    using Counters for Counters.Counter;\n\n    uint256 private rewardPerCycle;\n    uint256 public totalCycleCount = 0;\n    uint256 constant THRESHOLD = 25;\n    uint256 constant TOKENS_PER_EDITION = 25;\n    uint256 constant MAX_NUMBER_EDITIONS = 58;\n\n    address private treasury;\n\n    string public openSeaContractURI;\n    string public baseURI;\n\n    OBYToken obyToken;\n    IOperatorFilter operatorFilter;\n    Counters.Counter private _editionIds;\n    Counters.Counter private _tokenIds;\n\n   struct Edition {\n        uint256[TOKENS_PER_EDITION] tokens;\n        uint256 illuminationTimeStamp;\n        uint256 lastUpdateTimestamp;\n        uint256 cycle;\n        uint256 id;\n        string editionThumbnail;\n        string illumination;\n    }\n\n    struct OwnerReward {\n        uint256 rewardPaid;\n        uint256 rewardStored;\n    }\n\n    struct CreateEditionStruct {\n        uint256[TOKENS_PER_EDITION] tokens;\n        uint256 illuminationMoment;\n        string editionThumbnail;\n        string illumination;\n    }\n\n    mapping(uint256 => mapping(uint256 => OwnerReward)) private _ownersReward;\n    mapping(address => bool) private _eligibles;\n    mapping(uint256 => Edition) private _editions;\n    mapping(uint256 => uint256) private _editionOfToken;\n    mapping(address => uint256) private _totalRewardsClaimed;\n\n    event RewardWithdrawn(uint256 amount, address sender);\n    event EditionCreated(uint256 editionId);\n\n\n    constructor(address obyAddress, address _treasury, uint256 _royaltyValue, string memory _openSeaContractURI, string memory _blackSquareBaseURI,\n    uint256 _rewardPerCycle, address _operatorFilter) ERC721(\"BlackSquare\", \"B2\") {\n        obyToken = OBYToken(obyAddress);\n        operatorFilter = IOperatorFilter(_operatorFilter);\n        treasury = _treasury;\n        openSeaContractURI = _openSeaContractURI;\n        baseURI = _blackSquareBaseURI;\n        rewardPerCycle = _rewardPerCycle;\n        _setRoyalties(_treasury, _royaltyValue);\n    }\n\n    modifier onlyEligible() {\n        require(owner() == _msgSender() || _eligibles[_msgSender()] == true, \"BlackSquareNFT: caller is not eligible\");\n        _;\n    }\n\n    function _baseURI() internal view virtual override returns (string memory) {\n        return baseURI;\n    }\n\n    function supportsInterface(bytes4 interfaceId)\n        public\n        view\n        virtual\n        override(ERC721, ERC2981)\n        returns (bool)\n    {\n        return super.supportsInterface(interfaceId);\n    }\n\n    function setContractURI(string memory _contractURI) external onlyOwner {\n        openSeaContractURI = _contractURI;\n    }\n\n    function setBaseURI(string memory _blackSquareBaseURI) external onlyOwner {\n        baseURI = _blackSquareBaseURI;\n    }\n\n\n    function setRewardPerCycle(uint256 _rewardPerCycle) external onlyOwner {\n        rewardPerCycle = _rewardPerCycle;\n    }\n\n    function setRoyalties(address recipient, uint256 value) external onlyOwner {\n        _setRoyalties(recipient, value);\n    }\n\n    function setEligibles(address _eligible) external onlyOwner  {\n        _eligibles[_eligible] = true;\n\n        \n    }\n\n    function contractURI() public view returns (string memory) {\n        return openSeaContractURI;\n    }\n\n    function _beforeTokenTransfer(\n        address from,\n        address to,\n        uint256 tokenId,\n        uint256 batchSize\n    ) internal virtual override(ERC721) {\n        if (\n            from != address(0) &&\n            to != address(0) &&\n            !_mayTransfer(msg.sender, tokenId)\n        ) {\n            revert(\"ERC721OperatorFilter: illegal operator\");\n        }\n        super._beforeTokenTransfer(from, to, tokenId, batchSize);\n    }\n\n    function _mayTransfer(address operator, uint256 tokenId)\n        private\n        view\n        returns (bool)\n    {\n        IOperatorFilter filter = operatorFilter;\n        if (address(filter) == address(0)) return true;\n        if (operator == ownerOf(tokenId)) return true;\n        return filter.mayTransfer(msg.sender);\n    }\n\n    function getEditions() public view returns (Edition[] memory) {\n        Edition[] memory editions = new Edition[](_editionIds.current() + 1);\n\n        for (uint256 editionCounter = 1; editionCounter <= _editionIds.current(); editionCounter++){\n            editions[editionCounter] = _editions[editionCounter];\n        }\n        return editions;\n    }\n\n    function deleteEdition (uint256 editionId) public onlyOwner {\n        delete _editions[editionId];\n    }\n\n    function createEdition(CreateEditionStruct memory _createEditionStruct) public onlyOwner  {\n        _editionIds.increment();\n        uint256 editionId = _editionIds.current();\n        \n\n        for (uint256 i = 0; i < _createEditionStruct.tokens.length; i++) {\n            _editionOfToken[_createEditionStruct.tokens[i]] = _editionIds.current();\n        }\n\n        _editions[editionId].tokens = _createEditionStruct.tokens;\n        _editions[editionId].illuminationTimeStamp = _createEditionStruct.illuminationMoment;\n        _editions[editionId].lastUpdateTimestamp = block.timestamp;\n        _editions[editionId].cycle = 1;\n        _editions[editionId].id = editionId;\n        _editions[editionId].editionThumbnail = _createEditionStruct.editionThumbnail;\n        _editions[editionId].illumination = _createEditionStruct.illumination;\n\n        emit EditionCreated(editionId);\n    }\n\n\n    function getCurrentTokenId() external view returns (uint256) {\n        return _tokenIds.current();\n    }\n\n    function getRewardInOBY () public view returns (uint256, uint256) {\n        uint256[] memory tokens = getTokensHeldByUser(_msgSender());\n\n        require(tokens.length > 0, 'NO BlackSquares held');\n        uint256 availableReward = 0;\n\n        uint256 paidReward = _totalRewardsClaimed[_msgSender()];\n\n        for (uint256 i = 0; i < tokens.length; i++) {\n            (uint256 rewardPertoken, ,) = _getAvailableRewardInOby(tokens[i]);\n            availableReward += rewardPertoken;\n            \n        }\n        return (availableReward, paidReward);\n    }\n\n    function claimRewardInOBY () public returns (uint256) {\n        uint256[] memory tokens = getTokensHeldByUser(_msgSender());\n\n        require(tokens.length > 0, 'NO BlackSquares held');\n        uint256 availableReward = 0;\n\n        for (uint256 i = 0; i < tokens.length; i++) {\n            (uint256 rewardPertoken, uint256 cycle, uint256 rewardStoredPrev) = _getAvailableRewardInOby(tokens[i]);\n            availableReward += rewardPertoken;\n\n            uint256 tokenId = tokens[i];\n\n            uint256 previousCycle = cycle > 1 ? cycle - 1 : 1;\n            uint256 rewardPaid = rewardPertoken - rewardStoredPrev;\n\n            _ownersReward[tokenId][cycle].rewardPaid += rewardPaid;\n\n            _totalRewardsClaimed[_msgSender()] += rewardPertoken;\n            _ownersReward[tokenId][cycle].rewardStored = 0;\n            if (cycle > 1) {\n                _ownersReward[tokenId][previousCycle].rewardStored = 0;\n            }\n        }\n\n        require(availableReward > 0, 'No OBY available to mint');\n\n        if (availableReward > 0) {\n            obyToken.mint(_msgSender(), availableReward);\n        }\n\n        emit RewardWithdrawn(availableReward, _msgSender());\n        \n        return availableReward;\n    }\n\n    function getTokensHeldByUser(address user) public view returns (uint256[] memory) {\n        uint256 balance = balanceOf(user);\n        uint256[] memory emptyTokens = new uint256[](0);\n        uint256[] memory tokenIds = new uint256[](balance);\n        uint256 j = 0;\n\n        for (uint256 i = 1; i <= _tokenIds.current(); i++ ) {\n            address tokenOwner = ownerOf(i);\n\n            if (tokenOwner == user) {\n                tokenIds[j] = i;\n                j++;\n            }\n        }\n        if (tokenIds.length > 0) {\n            return tokenIds;\n        }  else {\n            return emptyTokens;\n        }\n    }\n\n    function mintAndDrop(address[] memory recipients, CreateEditionStruct[] memory _createEditionStruct) public onlyOwner {\n        uint256 editionCount = 0;\n\n        if(_editionIds.current() <= MAX_NUMBER_EDITIONS) {\n            for (uint256 i = 0; i < recipients.length; i++) {\n                _tokenIds.increment();\n                uint256 currentTokenId = _tokenIds.current();\n\n                unchecked {\n                    _mint(recipients[i], currentTokenId);\n\n                    if (currentTokenId == 25 || currentTokenId > 25 && currentTokenId % 25 ==  0) {\n                        createEdition(_createEditionStruct[editionCount]);\n                        editionCount++;\n                    }\n                }\n            }\n        }\n    }\n\n    function editEdition(uint256 _editionId, uint256 _illuminationTimeStamp) public onlyEligible returns (uint256) {\n        updateStoredReward(_editionId);\n\n        _editions[_editionId].illuminationTimeStamp = _illuminationTimeStamp;\n        _editions[_editionId].lastUpdateTimestamp = block.timestamp;\n        _editions[_editionId].cycle += 1;\n\n        totalCycleCount ++;\n\n        return _editionId;\n    }\n\n    function updateStoredReward(uint256 editionId) public onlyEligible  {\n        uint256 editionCycle = _editions[editionId].cycle;\n        for (uint256 tokenId = 0; tokenId < _editions[editionId].tokens.length; tokenId++ ) {\n            uint256 currentToken = _editions[editionId].tokens[tokenId];\n\n            // Normal update where cycle is > 1, Up to the normal rewardPerPeriod was paid out & There is a stored reward >= 0\n            if (_ownersReward[currentToken][editionCycle].rewardPaid <= (rewardPerCycle / 10000) && editionCycle > 1 && _ownersReward[currentToken][editionCycle - 1].rewardStored >= 0) {\n                _ownersReward[currentToken][editionCycle].rewardStored =  (rewardPerCycle / 10000) -  _ownersReward[currentToken][editionCycle].rewardPaid + _ownersReward[currentToken][editionCycle - 1].rewardStored;\n\n            // We are in Cycle one, so there is no previously stored reward. Now everything gets stored which is a positive amount or 0\n            } else if (_ownersReward[currentToken][editionCycle].rewardPaid <= (rewardPerCycle / 10000) && editionCycle == 1) {\n                _ownersReward[currentToken][editionCycle].rewardStored = (rewardPerCycle / 10000) -  _ownersReward[currentToken][editionCycle].rewardPaid;\n\n            // In case due to some rounding errors etc. RewardPaid > Reward, Only Stored Reward is carried over if Cycle > 1 and Stored Reward is bigger than 0\n            } else if (_ownersReward[currentToken][editionCycle].rewardPaid > (rewardPerCycle / 10000) && editionCycle > 1 && _ownersReward[currentToken][editionCycle - 1].rewardStored > 0) {\n                _ownersReward[currentToken][editionCycle].rewardStored = _ownersReward[currentToken][editionCycle - 1].rewardStored;\n\n            // Handle the Edge Cases\n            } else {\n                _ownersReward[currentToken][editionCycle].rewardStored = 0;\n            }\n            \n        }\n        \n    }\n\n    function getFirstEditionToSetIlluminationDate() public view returns (uint256) {\n        for (uint256 editionCounter = 1; editionCounter <= _editionIds.current(); editionCounter++){\n            if (_editions[editionCounter].illuminationTimeStamp < block.timestamp) {\n                return editionCounter;\n            }\n        }\n        return 0;\n    }\n\n    function getAvailableIlluminaCount() public view returns (uint256) {\n        uint256 availableIlluminas = totalCycleCount * THRESHOLD;\n        for (uint256 editionCounter = 1; editionCounter <= _editionIds.current(); editionCounter++){\n            if (_editions[editionCounter].illuminationTimeStamp < block.timestamp) {\n                availableIlluminas += THRESHOLD;\n            }\n        }\n        return availableIlluminas;\n    }\n\n    function setIlluminationTimeStamp(uint256 _editionId, uint256 _illuminationTimeStamp) public onlyOwner {\n        _editions[_editionId].illuminationTimeStamp = _illuminationTimeStamp;\n    }\n\n     function _getAvailableRewardInOby(uint256 tokenId) internal view returns (uint256, uint256, uint256) {\n        uint256 editionId = _editionOfToken[tokenId];\n\n        require(editionId != 0, 'Token Not associated with any Edition');\n\n        uint256 illuminationTimeStamp = _editions[editionId].illuminationTimeStamp;\n        uint256 cycle = _editions[editionId].cycle;\n        uint256 previousCycle = cycle > 1 ? cycle - 1 : 1;\n        uint256 lastUpdateTimestamp = _editions[editionId].lastUpdateTimestamp;\n\n        uint256 rewardPaid = _ownersReward[tokenId][cycle].rewardPaid > 0 ? _ownersReward[tokenId][cycle].rewardPaid : 0;\n        uint256 rewardStoredPrev = cycle > 1 ? _ownersReward[tokenId][previousCycle].rewardStored : 0;\n\n        // We are in the normal distribution Cycle\n        if (lastUpdateTimestamp < illuminationTimeStamp && block.timestamp < illuminationTimeStamp && block.timestamp > lastUpdateTimestamp) {\n            uint256 rewardPerSecond = rewardPerCycle / (illuminationTimeStamp - lastUpdateTimestamp);\n\n            uint256 rewardPayableFromCycle = (((rewardPerSecond) * ((block.timestamp) - lastUpdateTimestamp)) / 10000) - rewardPaid;\n\n            uint256 returnableAmount = rewardPayableFromCycle >= 1 ? rewardPayableFromCycle + rewardStoredPrev : rewardStoredPrev;\n\n            return (returnableAmount, cycle, rewardStoredPrev);\n        // We are outside the normal cycle, during time of Illumina sale\n        } else if (lastUpdateTimestamp < illuminationTimeStamp && block.timestamp > illuminationTimeStamp && block.timestamp > lastUpdateTimestamp) {\n\n            uint256 returnableAmount = rewardStoredPrev + (rewardPerCycle / 10000) - rewardPaid;\n            return (returnableAmount, cycle, rewardStoredPrev);\n        // Handle all edge cases\n        } else {\n            return (rewardStoredPrev, cycle, rewardStoredPrev);\n        }\n    }\n}\n"
    },
    "contracts/ERC2981/ERC2981.sol": {
      "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.7;\n\nimport '@openzeppelin/contracts/utils/introspection/ERC165.sol';\n\nimport './IERC2981Royalties.sol';\n\n/// @dev This is a contract used to add ERC2981 support to ERC721 and 1155\nabstract contract ERC2981 is ERC165, IERC2981Royalties {\n    struct RoyaltyInfo {\n        address recipient;\n        uint24 amount;\n    }\n\n    /// @inheritdoc\tERC165\n    function supportsInterface(bytes4 interfaceId)\n        public\n        view\n        virtual\n        override\n        returns (bool)\n    {\n        return\n            interfaceId == type(IERC2981Royalties).interfaceId ||\n            super.supportsInterface(interfaceId);\n    }\n}\n"
    },
    "contracts/ERC2981/ERC2981ContractWideRoyalties.sol": {
      "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.7;\n\nimport '@openzeppelin/contracts/utils/introspection/ERC165.sol';\n\nimport './ERC2981.sol';\n\n/// @dev This is a contract used to add ERC2981 support to ERC721 and 1155\n/// @dev This implementation has the same royalties for each and every tokens\nabstract contract ERC2981ContractWideRoyalties is ERC2981 {\n    RoyaltyInfo private _royalties;\n\n    /// @dev Sets token royalties\n    /// @param recipient recipient of the royalties\n    /// @param value percentage (using 2 decimals - 10000 = 100, 0 = 0)\n    function _setRoyalties(address recipient, uint256 value) internal {\n        require(value <= 10000, 'ERC2981Royalties: Too high');\n        _royalties = RoyaltyInfo(recipient, uint24(value));\n    }\n\n    /// @inheritdoc\tIERC2981Royalties\n    function royaltyInfo(uint256, uint256 value)\n        external\n        view\n        override\n        returns (address receiver, uint256 royaltyAmount)\n    {\n        RoyaltyInfo memory royalties = _royalties;\n        receiver = royalties.recipient;\n        royaltyAmount = (value * royalties.amount) / 10000;\n    }\n}\n"
    },
    "contracts/ERC2981/IERC2981Royalties.sol": {
      "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.7;\n\n/// @title IERC2981Royalties\n/// @dev Interface for the ERC2981 - Token Royalty standard\ninterface IERC2981Royalties {\n    /// @notice Called with the sale price to determine how much royalty\n    //          is owed and to whom.\n    /// @param _tokenId - the NFT asset queried for royalty information\n    /// @param _value - the sale price of the NFT asset specified by _tokenId\n    /// @return _receiver - address of who should be sent the royalty payment\n    /// @return _royaltyAmount - the royalty payment amount for value sale price\n    function royaltyInfo(uint256 _tokenId, uint256 _value)\n        external\n        view\n        returns (address _receiver, uint256 _royaltyAmount);\n}\n"
    },
    "contracts/Erc721OperatorFilter/IOperatorFilter.sol": {
      "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.7;\n\ninterface IOperatorFilter {\n    function mayTransfer(address operator) external view returns (bool);\n}\n"
    },
    "contracts/IlluminaNFT_V3.sol": {
      "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.7;\n\nimport '@openzeppelin/contracts/token/ERC721/ERC721.sol';\nimport './ERC2981/ERC2981ContractWideRoyalties.sol';\nimport \"@openzeppelin/contracts/utils/Counters.sol\";\nimport \"@openzeppelin/contracts/access/Ownable.sol\";\nimport {DefaultOperatorFilterer} from \"./OpenseaOperatorFilter//DefaultOperatorFilterer.sol\";\nimport \"@chainlink/contracts/src/v0.8/interfaces/VRFCoordinatorV2Interface.sol\";\nimport \"@chainlink/contracts/src/v0.8/VRFConsumerBaseV2.sol\";\nimport \"./BlackSquareNFT.sol\";\nimport \"./OBYToken.sol\";\n\ncontract IlluminaNFT_V3 is ERC721, DefaultOperatorFilterer, Ownable, ERC2981ContractWideRoyalties, VRFConsumerBaseV2 {\n    VRFCoordinatorV2Interface COORDINATOR;\n    using Counters for Counters.Counter;\n\n    uint256 public s_requestId;\n    uint256 private min;\n    uint256 private max;\n    uint256 private illuminaFactor;\n    uint256 public illuminationTimeStamp = 0;\n    uint256 constant ILLUMINA_BASE_SUPPLY = 20000;\n    uint256 constant ILLUMINA_REGULAR_PRICE = 225;\n    uint256 constant ILLUMINA_MIN_PRICE = 30;\n    uint256 constant THRESHOLD = 25;\n\n    uint16 requestConfirmations = 3;\n    uint32 numWords =  1;\n    uint32 callbackGasLimit = 2500000;\n    uint64 s_subscriptionId;\n\n    bytes32 keyHash = 0x8af398995b04c28e9951adb9721ef74c74f93e6a478f39e7e0777be13527e7ef;\n    address vrfCoordinator = address(0x271682DEB8C4E0901D1a1550aD2e64D568E69909);\n    address private treasury;\n\n    string private baseURI;\n\n    bool public getRandomnessFromOracles;\n    bool public editBlacksquareEditions = true;\n    bool public simpleMintable = true;\n\n    OBYToken obyToken;\n    BlackSquareNFT blackSquare;\n    Counters.Counter private _tokenIds;\n\n    mapping(uint256 => string) private _tokenURIs;\n    mapping(address => bool) private _eligibles;\n    mapping(uint256 => bool) private _burnedTokens;\n\n    event MintToken(uint256 tokenId, address purchaser);\n    event BatchMinted();\n\n    constructor(address tokenAddress, address _blackSquareAddress, address _treasury, \n    uint256 _royaltyValue, uint64 _subscriptionId, string memory _illuminaBaseURI,\n    uint256 _minTime, uint256 _maxTime, uint256 _illuminaFactor, bool _getRandomnessFromOracles) VRFConsumerBaseV2(vrfCoordinator) ERC721(\"Illumina\", \"Ill\") {\n        COORDINATOR = VRFCoordinatorV2Interface(vrfCoordinator);\n        obyToken = OBYToken(tokenAddress);\n        blackSquare = BlackSquareNFT(_blackSquareAddress);\n        treasury = _treasury;\n        s_subscriptionId = _subscriptionId;\n        baseURI = _illuminaBaseURI;\n        min = _minTime;\n        max = _maxTime;\n        illuminaFactor = _illuminaFactor;\n        getRandomnessFromOracles = _getRandomnessFromOracles;\n        _setRoyalties(_treasury, _royaltyValue);\n    }\n\n     modifier onlyEligible() {\n        require(owner() == _msgSender() || _eligibles[_msgSender()] == true, \"IlluminaNFT: caller is not eligible\");\n        _;\n    }\n\n    function supportsInterface(bytes4 interfaceId)\n        public\n        view\n        virtual\n        override(ERC721, ERC2981)\n        returns (bool)\n    {\n        return super.supportsInterface(interfaceId);\n    }\n\n    function setEditBlacksquareEditions (bool _edit) public onlyEligible {\n        editBlacksquareEditions = _edit;\n    }\n\n    function setEligibles(address _eligible, bool _val) public onlyOwner {\n        _eligibles[_eligible] = _val;\n    }\n\n    function setIlluminationTimeStamp(uint256 _illuminationTimeStamp) public onlyEligible {\n        illuminationTimeStamp = _illuminationTimeStamp;\n    }\n\n    function setSimpleMintable(bool _simpleMintable) public onlyEligible {\n        simpleMintable = _simpleMintable;\n    }\n\n    function setRandomnessFromOracles(bool _getRandomnessFromOracles) public onlyOwner {\n        getRandomnessFromOracles = _getRandomnessFromOracles;\n    }\n\n    function setRoyalties(address recipient, uint256 value) external onlyOwner {\n        _setRoyalties(recipient, value);\n    }\n\n    function setKeyHash(bytes32 _keyHash) external onlyOwner {\n        keyHash = _keyHash;\n    }\n\n    function setMin(uint8 _min) external onlyOwner {\n        min = _min;\n    }\n\n    function setMax(uint8 _max) external onlyOwner {\n        max = _max;\n    }\n\n    function setSubscriptionId(uint64 _s_subscriptionId) external onlyOwner {\n        s_subscriptionId = _s_subscriptionId;\n    }\n\n    function setBaseURI(string memory _illuminaBaseURI) external onlyOwner {\n        baseURI = _illuminaBaseURI;\n    }\n\n    function setTokenIpfsHash(uint256 tokenId, string memory ipfsHash) external onlyOwner {\n        _tokenURIs[tokenId] = ipfsHash;\n    }\n\n    function _baseURI() internal view virtual override returns (string memory) {\n        return baseURI;\n    }\n\n    function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {\n        string memory illuminaBaseURI = _baseURI();\n        string memory tokenURIHash = _tokenURIs[tokenId];\n        return bytes(illuminaBaseURI).length > 0 ? string(abi.encodePacked(illuminaBaseURI, tokenURIHash)) : \"\";\n    }\n\n     function transferFrom(address from, address to, uint256 tokenId) public override onlyAllowedOperator(from) {\n        super.transferFrom(from, to, tokenId);\n    }\n\n    function safeTransferFrom(address from, address to, uint256 tokenId) public override onlyAllowedOperator(from) {\n        super.safeTransferFrom(from, to, tokenId);\n    }\n\n    function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory data)\n        public\n        override\n        onlyAllowedOperator(from)\n    {\n        super.safeTransferFrom(from, to, tokenId, data);\n    }\n\n    function requestRandomWords() internal  {\n        s_requestId = COORDINATOR.requestRandomWords(\n            keyHash,\n            s_subscriptionId,\n            requestConfirmations,\n            callbackGasLimit,\n            numWords\n        );\n    }\n\n    function fulfillRandomWords(\n        uint256,\n        uint256[] memory randomWords\n    ) internal override {\n        require(randomWords.length > 0, 'OracleContract: No Number delivered');\n        uint256 illuminationDate = randomWords[0] % (max - min + 1) + min;\n\n        illuminationTimeStamp = illuminationDate;\n    }\n\n    function getTokensHeldByUser(address user) public view returns (uint256[] memory) {\n        uint256 balance = balanceOf(user);\n        uint256[] memory emptyTokens = new uint256[](0);\n        uint256[] memory tokenIds = new uint256[](balance);\n        uint256 j = 0;\n        for (uint256 i = 1; i <= _tokenIds.current(); i++ ) {\n            if (!_burnedTokens[i]) {\n                address tokenOwner = ownerOf(i);\n\n                if (tokenOwner == user) {\n                    tokenIds[j] = i;\n                    j++;\n                }\n            }\n        }\n        return tokenIds.length > 0 ? tokenIds : emptyTokens;\n    }\n\n    function externalFulfillRequirements(uint256 tokenId, address msgSender) external view onlyEligible {\n        fulfillRequirements(tokenId,  msgSender);\n    }\n\n    function externalHandleMint(string memory ipfsHash, uint256 _editionId, address msgSender) external onlyEligible {\n        handleMint(ipfsHash, _editionId, msgSender);\n    }\n\n    function simpleMint(string memory _ipfsHash, uint256 _tokenId) external {\n        require(simpleMintable == true, 'No tokens can be minted at the moment');\n        fulfillRequirements(_tokenId, _msgSender());\n        handleMint(_ipfsHash, 0, _msgSender());\n    }\n\n    function fulfillRequirements(uint256 tokenId, address msgSender) internal view {\n        require(_tokenIds.current() <= ILLUMINA_BASE_SUPPLY, 'Max Amount of Illuminas minted');\n\n        require(tokenId == getNextTokenId(), 'Trying to mint Token with incorrect Metadata');\n\n        require(blackSquare.getAvailableIlluminaCount() > _tokenIds.current(), 'IlluminaNFT, max mintable number reached');\n        (uint256 pricePerToken, ,) = getIlluminaPrice();\n\n        bool ok1 = obyToken.checkBalances(pricePerToken, msgSender);\n        require(ok1, 'IlluminaNFT, insufficient balances');\n    }\n\n    function handleMint (string memory ipfsHash, uint256 _editionId, address msgSender) internal {\n        _tokenIds.increment();\n\n        require(!_exists(_tokenIds.current()), \"IlluminaNFT: Token already exists\");\n        (uint256 pricePerToken, ,) = getIlluminaPrice();\n        _mint(msgSender, _tokenIds.current());\n\n        emit MintToken(_tokenIds.current(), msgSender);\n\n        obyToken.burnToken(pricePerToken, msgSender);\n\n        _tokenURIs[_tokenIds.current()] = ipfsHash;\n\n        if ((_tokenIds.current() == THRESHOLD || (_tokenIds.current() > THRESHOLD && _tokenIds.current() % THRESHOLD == 0))) {\n            handleEditionEdit(_editionId);\n        }\n    }\n\n    function handleEditionEdit (uint256 _editionId) internal {\n        if (!getRandomnessFromOracles) {\n            uint256 randmomNumber = uint256(keccak256(\"wow\")) % (max - min + 1) + min;\n\n            uint256 randomnDate = block.timestamp + randmomNumber;\n\n            if(editBlacksquareEditions) {\n                uint256 editionId = _editionId == 0 ? blackSquare.getFirstEditionToSetIlluminationDate() : _editionId;\n                blackSquare.editEdition(editionId, randomnDate);\n            } else {\n                illuminationTimeStamp = randomnDate;\n            }\n        } else {\n            if(editBlacksquareEditions) {\n                requestRandomWords();\n            }\n        }\n    }\n\n    function getIlluminaPrice() public view returns (uint256, uint256, uint256) {\n        uint256 availableIllumina = blackSquare.getAvailableIlluminaCount();\n\n        uint256 soldIllumina = _tokenIds.current();\n\n        uint256 vacantIllumina = availableIllumina - soldIllumina;\n\n        if (ILLUMINA_REGULAR_PRICE > (vacantIllumina / illuminaFactor)) {\n            uint256 residualPrice = ILLUMINA_REGULAR_PRICE - ( vacantIllumina / illuminaFactor );\n\n            if (residualPrice > ILLUMINA_MIN_PRICE) {\n                return (residualPrice, availableIllumina, vacantIllumina);\n            }\n        }\n\n        return (ILLUMINA_MIN_PRICE, availableIllumina, vacantIllumina);\n    }\n\n    function getNextTokenId() public view returns (uint256) {\n        return blackSquare.getAvailableIlluminaCount() == 0 ? 0 : _tokenIds.current() + 1;\n    }\n\n    function burnIllumina(address user, uint256 _burnThreshold) public onlyEligible {\n        uint256[] memory tokenIds = getTokensHeldByUser(user);\n\n        for (uint256 i = 0; i < tokenIds.length; i++ ) {\n            if (i < _burnThreshold) {\n                uint256 tokenId = tokenIds[i];\n\n                super._burn(tokenId);\n\n                _burnedTokens[tokenId] = true;\n            }\n        }\n    }\n}"
    },
    "contracts/OBYToken.sol": {
      "content": "//SPDX-License-Identifier: MIT\npragma solidity ^0.8.7;\n\nimport \"@openzeppelin/contracts/token/ERC20/ERC20.sol\";\nimport \"@openzeppelin/contracts/access/Ownable.sol\";\nimport \"@openzeppelin/contracts/access/AccessControl.sol\";\n\n\ncontract OBYToken is ERC20, Ownable {\n    mapping(address => bool) private _eligibles;\n\n    event Destruction(uint256 amount);\n\n    constructor() ERC20(\"OBYToken\", \"OBY\") {}\n\n    modifier onlyEligible() {\n        require(owner() == _msgSender() || _eligibles[msg.sender], \"OBYToken: caller is not eligible\");\n        _;\n    }\n\n    function setEligibles(address _eligible) public onlyOwner {\n        _eligibles[_eligible] = true;\n    }\n\n    function mint(address account, uint256 amount) external onlyEligible {\n        uint256 sendAmount = amount * (10**18);\n        _mint(account, sendAmount);\n    }\n\n    function checkBalances(uint256 tokenPrice, address account) external onlyEligible view returns (bool) {\n        if (balanceOf(account) >= tokenPrice) {\n            return true;\n        }\n        return false;\n    }\n\n    function burnToken(uint256 amount, address account) external onlyEligible {\n        uint256 sendAmount = amount * (10**18);\n        _burn(account, sendAmount);\n\n        emit Destruction(amount);\n    }\n\n    function getEligibles(address account) public view onlyEligible returns (bool) {\n        require (account != address(0), \"OBYToken: address must not be empty\");\n        return _eligibles[account];\n    }\n}\n"
    },
    "contracts/OBYTransfer_V2.sol": {
      "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.7;\nimport '@openzeppelin/contracts/token/ERC721/ERC721.sol';\nimport '@openzeppelin/contracts/token/ERC721/IERC721.sol';\n\nimport \"./OBYToken.sol\";\nimport \"./BlackSquareNFT.sol\";\n\n\ncontract OBYTransfer_V2 {\n    using Strings for uint256;\n\n    OBYToken obyToken;\n    BlackSquareNFT blackSquare;\n\n    uint256 constant OBY_PER_CYCLE = 300;\n\n    address owner;\n    address blacksquareAddress;\n\n    bool public claimable;\n\n    mapping(uint256 => bool) private _claimedInCycle;\n    mapping(address => bool) private _eligibles;\n\n    mapping (uint256 => bool) private _claimed;\n\n    event RewardWithdrawn(uint256 amount, address sender);\n\n    constructor(address _blackSquareAddress, address _obyAddress, bool _claimable) {\n        blackSquare = BlackSquareNFT(_blackSquareAddress);\n        obyToken = OBYToken(_obyAddress);\n        owner = msg.sender;\n        claimable = _claimable;\n        blacksquareAddress = _blackSquareAddress;\n    }\n\n    modifier onlyOwner() {\n        require(owner == msg.sender, \"OBYTransfer: caller is not eligible\");\n        _;\n    }\n\n    modifier onlyEligible() {\n        require(owner == msg.sender || _eligibles[msg.sender ] == true, \"IlluminaNFT: caller is not eligible\");\n        _;\n    }\n\n    function setEligibles(address _eligible) public onlyOwner {\n        _eligibles[_eligible] = true;\n    }\n\n    function setClaimable (bool _claimable) public onlyEligible {\n        claimable = _claimable;\n    }\n\n    function setClaimed (bool _claimable, uint256 _tokenId) public onlyEligible {\n        _claimed[_tokenId] = _claimable;\n    }\n\n\n    function getOwnerOf (uint256 _tokenId) public view returns (address) {\n        IERC721 nft = IERC721(blacksquareAddress);\n        address tokenOwner = nft.ownerOf(_tokenId);\n\n        return tokenOwner;\n    }\n\n\n    function transferOBYPerToken(uint256 _tokenId) external {\n        \n        if (getOwnerOf(_tokenId) == msg.sender && !_claimed[_tokenId] && claimable) {\n            obyToken.mint(msg.sender, OBY_PER_CYCLE);\n            _claimed[_tokenId] = true;\n            emit RewardWithdrawn(OBY_PER_CYCLE, msg.sender);\n        }\n\n        emit RewardWithdrawn(0, msg.sender);\n    }\n\n    function getAlreadyClaimed(uint256 _tokenId) public view returns (bool) {\n        if (_claimed[_tokenId]) {\n            bool claimed = _claimed[_tokenId];\n            return claimed;\n        }\n\n        return false;\n        \n    }\n\n    function getTransferableOBYPerToken(uint256 _tokenId) external view returns (uint256) {\n        if (getOwnerOf(_tokenId) == msg.sender && !_claimed[_tokenId] && claimable) {\n            return OBY_PER_CYCLE;\n        }\n        return 0;\n    }\n\n\n\n    function transferOBYForAllTokensHeld() external {\n        uint256[] memory tokens = blackSquare.getTokensHeldByUser(msg.sender);\n\n        uint256 transferableOBY = 0;\n\n        if (tokens.length > 0) {\n\n            for (uint256 i = 0; i < tokens.length; i++ ) {\n                uint256 tokenId = tokens[i];\n                if (getOwnerOf(tokenId) == msg.sender && !_claimed[tokenId] && claimable) {\n                    transferableOBY += OBY_PER_CYCLE;\n                    _claimed[tokenId] = true;\n                }\n            }\n        }\n\n        if (transferableOBY > 0) {\n            obyToken.mint(msg.sender, transferableOBY);\n        }\n\n        emit RewardWithdrawn(transferableOBY, msg.sender);\n    }\n\n    function getTransferableOBYForAllTokensHeld() external view returns (uint256) {\n        uint256[] memory tokens = blackSquare.getTokensHeldByUser(msg.sender);\n\n        uint256 transferableOBY = 0;\n\n        if (tokens.length > 0) {\n\n            for (uint256 i = 0; i < tokens.length; i++ ) {\n                uint256 tokenId = tokens[i];\n                if (getOwnerOf(tokenId) == msg.sender && !_claimed[tokenId] && claimable) {\n                    transferableOBY += OBY_PER_CYCLE;\n                }\n            }\n        }\n        return transferableOBY;\n    }\n}\n"
    },
    "contracts/OBYTransfer_V3.sol": {
      "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.7;\nimport '@openzeppelin/contracts/token/ERC721/ERC721.sol';\nimport '@openzeppelin/contracts/token/ERC721/IERC721.sol';\n\nimport \"./OBYToken.sol\";\nimport \"./BlackSquareNFT.sol\";\nimport \"./OBYTransfer_V2.sol\";\nimport \"./IlluminaNFT_V3.sol\";\n\n\n\ncontract OBYTransfer_V3 {\n    using Strings for uint256;\n\n    OBYToken obyToken;\n    BlackSquareNFT blackSquare;\n    OBYTransfer_V2 obyTransfer_v2;\n    IlluminaNFT_V3 illuminaNFT_v3;\n    \n    uint256 constant OBY_PER_CYCLE = 300;\n    uint256 constant TOKEN_PER_EDITION = 25;\n    uint256 public maxMintable = 5;\n\n    address owner;\n    address blacksquareAddress;\n    bool public bulkMintable = true;\n    bool public claimable;\n\n    mapping(uint256 => mapping(uint256 => bool)) private _claimedInCycle;\n    mapping(address => bool) private _eligibles;\n\n    event RewardWithdrawn(uint256 amount, address sender);\n\n    constructor(address _blackSquareAddress, address _obyAddress, bool _claimable, address _obyTransferAddress, address _illuminaNFT_V2) {\n        blackSquare = BlackSquareNFT(_blackSquareAddress);\n        obyToken = OBYToken(_obyAddress);\n        obyTransfer_v2 = OBYTransfer_V2(_obyTransferAddress);\n        illuminaNFT_v3 = IlluminaNFT_V3(_illuminaNFT_V2);\n        owner = msg.sender;\n        claimable = _claimable;\n        blacksquareAddress = _blackSquareAddress;\n    }\n\n    modifier onlyOwner() {\n        require(owner == msg.sender, \"OBYTransfer: caller is not eligible\");\n        _;\n    }\n\n    modifier onlyEligible() {\n        require(owner == msg.sender || _eligibles[msg.sender ] == true, \"OBYTransfer: caller is not eligible\");\n        _;\n    }\n\n    function setEligibles(address _eligible, bool _val) public onlyOwner {\n        _eligibles[_eligible] = _val;\n    }\n\n    function setClaimable (bool _claimable) public onlyEligible {\n        claimable = _claimable;\n    }\n\n    function setBulkMintAttributes (uint256 _maxMintable, bool _bulkMintable) public onlyEligible {\n        maxMintable = _maxMintable;\n        bulkMintable =_bulkMintable;\n    }\n\n    function getOwnerOf (uint256 _tokenId) public view returns (address) {\n        IERC721 nft = IERC721(blacksquareAddress);\n        address tokenOwner = nft.ownerOf(_tokenId);\n\n        return tokenOwner;\n    }\n\n    function getEditionMapping(uint256 _tokenId) public pure returns (uint256) {\n        uint256 multiplier = 10;\n        uint256 multipliedEdition = (_tokenId * multiplier) / TOKEN_PER_EDITION;\n\n        uint256 editionId = multipliedEdition % multiplier == 0 ? multipliedEdition / multiplier : (multipliedEdition / multiplier) + 1;\n\n        return editionId;\n    }\n\n    function getBlackSquareEditionAttributes (uint256 tokenId) public view returns (uint256, uint256, uint256) {\n        BlackSquareNFT.Edition[] memory editions = blackSquare.getEditions();\n        uint256 editionId = getEditionMapping(tokenId);\n\n        uint256 cycle = editions[editionId].cycle;\n        uint256 illuminationTimeStamp = editions[editionId].illuminationTimeStamp;\n\n        return (cycle, editionId, illuminationTimeStamp);\n    }\n\n    function getFirstEditionToBeIlluminated (uint256 _lastEditionToCheck) public view returns (uint256, uint256, uint256) {\n        BlackSquareNFT.Edition[] memory editions = blackSquare.getEditions();\n        uint256 firstEdition = blackSquare.getFirstEditionToSetIlluminationDate();\n\n        uint256 ediontTo = editions[_lastEditionToCheck].id;\n        uint256 illu = editions[_lastEditionToCheck].illuminationTimeStamp;\n\n        BlackSquareNFT.Edition[] memory returnEditions = new BlackSquareNFT.Edition[](editions.length);\n\n        if (firstEdition > 0) {\n           \n                uint256 l = editions.length;\n                for(uint i = 0; i < l; i++) {\n                    for(uint j = i + 1; j < l ; j++) {\n                        if(editions[i].illuminationTimeStamp > editions[j].illuminationTimeStamp) {\n                            BlackSquareNFT.Edition memory temp = editions[i];\n                            returnEditions[i] = returnEditions[j];\n                            returnEditions[j] = temp;\n                        }\n                    }\n                }\n            firstEdition = returnEditions[_lastEditionToCheck].id;\n            \n        }\n        return (firstEdition, ediontTo, illu);\n    }\n\n    function transferOBYPerToken(uint256 _tokenId) external {\n        uint256 transferableOby = 0;\n        (uint256 cycle, , uint256 illuminationTimeStamp) = getBlackSquareEditionAttributes(_tokenId);\n\n        if (cycle > 0 && getOwnerOf(_tokenId) == msg.sender && claimable) {\n\n            for (uint256 i = 1; i <= cycle; i++) {\n                if (cycle == 1 && !obyTransfer_v2.getAlreadyClaimed(_tokenId) && illuminationTimeStamp < block.timestamp) {\n                    transferableOby += OBY_PER_CYCLE;\n                    obyTransfer_v2.setClaimed(false, _tokenId);\n                }\n\n                if (cycle > 1 && !_claimedInCycle[_tokenId][i] && illuminationTimeStamp < block.timestamp) {\n                    transferableOby += OBY_PER_CYCLE;\n                    _claimedInCycle[_tokenId][i] = true;\n                }\n            }\n\n            obyToken.mint(msg.sender, transferableOby);\n\n        }\n        emit RewardWithdrawn(transferableOby, msg.sender);\n    }\n\n    \n\n    function transferOBYPerCycle() external {\n        uint256[] memory tokens = blackSquare.getTokensHeldByUser(msg.sender);\n        uint256 transferableOby = 0;\n\n        if (claimable) {\n            for (uint256 i = 0; i < tokens.length; i++) {\n                (uint256 cycle, , uint256 illuminationTimeStamp) = getBlackSquareEditionAttributes(tokens[i]);\n\n                if (cycle == 1 && !obyTransfer_v2.getAlreadyClaimed(tokens[i]) && illuminationTimeStamp < block.timestamp) {\n                    transferableOby += OBY_PER_CYCLE;\n                    obyTransfer_v2.setClaimed(true, tokens[i]);\n                }\n\n                if (cycle > 1 && !_claimedInCycle[tokens[i]][cycle] && illuminationTimeStamp < block.timestamp) {\n                    transferableOby += OBY_PER_CYCLE;\n                    _claimedInCycle[tokens[i]][cycle] = true;\n                }\n            }\n        }\n\n        if (transferableOby > 0) {\n            obyToken.mint(msg.sender, transferableOby);\n        }\n\n        emit RewardWithdrawn(transferableOby, msg.sender);\n    }\n\n\n    function getAlreadyClaimedInCycle(uint256 _tokenId, uint256 _cycle) public view returns (bool) {\n        return _claimedInCycle[_tokenId][_cycle];\n    }\n\n\n    function getTransferableOBYPerCycle() external view returns (uint256) {\n        uint256[] memory tokens = blackSquare.getTokensHeldByUser(msg.sender);\n        uint256 transferableOby = 0;\n\n        for (uint256 i = 0; i < tokens.length; i++) {\n            (uint256 cycle, , uint256 illuminationTimeStamp) = getBlackSquareEditionAttributes(tokens[i]);\n\n           if (cycle == 1 && !obyTransfer_v2.getAlreadyClaimed(tokens[i]) && illuminationTimeStamp < block.timestamp) {\n                    transferableOby += OBY_PER_CYCLE;\n            }\n\n            if (cycle > 1 && !_claimedInCycle[tokens[i]][cycle] && illuminationTimeStamp < block.timestamp) {\n                transferableOby += OBY_PER_CYCLE;\n            }\n        }\n\n        return transferableOby;\n    }\n\n    function getTransferableOBYPerToken(uint256 _tokenId, bool _checkBeforePurchase) external view returns (uint256) {\n        uint256 transferableOby = 0;\n        (uint256 cycle, , uint256 illuminationTimeStamp) = getBlackSquareEditionAttributes(_tokenId);\n\n        if (cycle > 0 && claimable) {\n\n            for (uint256 i = 1; i <= cycle; i++) {\n                \n                if (cycle == 1 && !obyTransfer_v2.getAlreadyClaimed(_tokenId)) {\n                    if (_checkBeforePurchase) {\n                        transferableOby += OBY_PER_CYCLE;\n                    }\n                    if (!_checkBeforePurchase && illuminationTimeStamp < block.timestamp) {\n                        transferableOby += OBY_PER_CYCLE;\n                    }\n                }\n\n                if (cycle > 1 && !_claimedInCycle[_tokenId][i]) {\n                    if (_checkBeforePurchase) {\n                        transferableOby += OBY_PER_CYCLE;\n                    }\n                    if (!_checkBeforePurchase && illuminationTimeStamp < block.timestamp) {\n                        transferableOby += OBY_PER_CYCLE;\n                    }\n                }\n            }\n        }\n        return transferableOby;\n    }\n\n    function mintIlluminaInBulk (string[] memory _ipfsHashes, uint256[] memory _tokens, uint256 _lastEditionToCheck) external {\n        if (bulkMintable && _ipfsHashes.length == _tokens.length && _tokens.length == maxMintable) {\n            (uint256 editionId,,) = getFirstEditionToBeIlluminated(_lastEditionToCheck);\n            for (uint256 i = 0; i < _tokens.length; i++) {\n                illuminaNFT_v3.externalFulfillRequirements(_tokens[i], msg.sender);\n                illuminaNFT_v3.externalHandleMint(_ipfsHashes[i], editionId, msg.sender);\n            }\n        }\n    }\n}"
    },
    "contracts/OpenseaOperatorFilter/DefaultOperatorFilterer.sol": {
      "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.7;\n\nimport {OperatorFilterer} from \"./OperatorFilterer.sol\";\n\nabstract contract DefaultOperatorFilterer is OperatorFilterer {\n    address constant DEFAULT_SUBSCRIPTION = address(0x3cc6CddA760b79bAfa08dF41ECFA224f810dCeB6);\n\n    constructor() OperatorFilterer(DEFAULT_SUBSCRIPTION, true) {}\n}"
    },
    "contracts/OpenseaOperatorFilter/IOperatorFilterRegistry.sol": {
      "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.7;\n\ninterface IOperatorFilterRegistry {\n    function isOperatorAllowed(address registrant, address operator) external view returns (bool);\n    function register(address registrant) external;\n    function registerAndSubscribe(address registrant, address subscription) external;\n    function registerAndCopyEntries(address registrant, address registrantToCopy) external;\n    function unregister(address addr) external;\n    function updateOperator(address registrant, address operator, bool filtered) external;\n    function updateOperators(address registrant, address[] calldata operators, bool filtered) external;\n    function updateCodeHash(address registrant, bytes32 codehash, bool filtered) external;\n    function updateCodeHashes(address registrant, bytes32[] calldata codeHashes, bool filtered) external;\n    function subscribe(address registrant, address registrantToSubscribe) external;\n    function unsubscribe(address registrant, bool copyExistingEntries) external;\n    function subscriptionOf(address addr) external returns (address registrant);\n    function subscribers(address registrant) external returns (address[] memory);\n    function subscriberAt(address registrant, uint256 index) external returns (address);\n    function copyEntriesOf(address registrant, address registrantToCopy) external;\n    function isOperatorFiltered(address registrant, address operator) external returns (bool);\n    function isCodeHashOfFiltered(address registrant, address operatorWithCode) external returns (bool);\n    function isCodeHashFiltered(address registrant, bytes32 codeHash) external returns (bool);\n    function filteredOperators(address addr) external returns (address[] memory);\n    function filteredCodeHashes(address addr) external returns (bytes32[] memory);\n    function filteredOperatorAt(address registrant, uint256 index) external returns (address);\n    function filteredCodeHashAt(address registrant, uint256 index) external returns (bytes32);\n    function isRegistered(address addr) external returns (bool);\n    function codeHashOf(address addr) external returns (bytes32);\n}"
    },
    "contracts/OpenseaOperatorFilter/OperatorFilterer.sol": {
      "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.7;\n\nimport {IOperatorFilterRegistry} from \"./IOperatorFilterRegistry.sol\";\n\nabstract contract OperatorFilterer {\n    error OperatorNotAllowed(address operator);\n\n    IOperatorFilterRegistry constant operatorFilterRegistry =\n        IOperatorFilterRegistry(0x000000000000AAeB6D7670E522A718067333cd4E);\n\n    constructor(address subscriptionOrRegistrantToCopy, bool subscribe) {\n        // If an inheriting token contract is deployed to a network without the registry deployed, the modifier\n        // will not revert, but the contract will need to be registered with the registry once it is deployed in\n        // order for the modifier to filter addresses.\n        if (address(operatorFilterRegistry).code.length > 0) {\n            if (subscribe) {\n                operatorFilterRegistry.registerAndSubscribe(address(this), subscriptionOrRegistrantToCopy);\n            } else {\n                if (subscriptionOrRegistrantToCopy != address(0)) {\n                    operatorFilterRegistry.registerAndCopyEntries(address(this), subscriptionOrRegistrantToCopy);\n                } else {\n                    operatorFilterRegistry.register(address(this));\n                }\n            }\n        }\n    }\n\n    modifier onlyAllowedOperator(address from) virtual {\n        // Check registry code length to facilitate testing in environments without a deployed registry.\n        if (address(operatorFilterRegistry).code.length > 0) {\n            // Allow spending tokens from addresses with balance\n            // Note that this still allows listings and marketplaces with escrow to transfer tokens if transferred\n            // from an EOA.\n            if (from == msg.sender) {\n                _;\n                return;\n            }\n            if (\n                !(\n                    operatorFilterRegistry.isOperatorAllowed(address(this), msg.sender)\n                        && operatorFilterRegistry.isOperatorAllowed(address(this), from)\n                )\n            ) {\n                revert OperatorNotAllowed(msg.sender);\n            }\n        }\n        _;\n    }\n}"
    }
  },
  "settings": {
    "optimizer": {
      "enabled": false,
      "runs": 200
    },
    "outputSelection": {
      "*": {
        "*": [
          "evm.bytecode",
          "evm.deployedBytecode",
          "devdoc",
          "userdoc",
          "metadata",
          "abi"
        ]
      }
    },
    "libraries": {}
  }
}