Token

Contract Source Code (Solidity Standard Json-Input format)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.2;

import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts/token/ERC721/ERC721.sol";
import "@openzeppelin/contracts/access/AccessControl.sol";
import "@openzeppelin/contracts/utils/Counters.sol";
import "@openzeppelin/contracts/token/ERC721/extensions/ERC721Burnable.sol";
import "@openzeppelin/contracts/utils/cryptography/draft-EIP712.sol";
import "./IGoldz.sol";

contract FeudalzElvez is ERC721, EIP712, ERC721Burnable, AccessControl {
    using Counters for Counters.Counter;

    bytes32 public constant ADMIN_ROLE = keccak256("ADMIN_ROLE");

    IGoldz goldz = IGoldz(0x7bE647634A942e73F8492d15Ae492D867Ce5245c);

    Counters.Counter private _tokenIdCounter;
    address _signerAddress;
    string _baseUri;
    string _contractUri;
    
    mapping (address => uint) public accountToMintedFreeTokens;
    uint public constant MAX_SUPPLY = 10000;
    bool public isSalesActive = true;
    uint public price;
    
    constructor() ERC721("FeudalzElvez", "ELVEZ") EIP712("ELVEZ", "1.0.0") {
        _setupRole(DEFAULT_ADMIN_ROLE, msg.sender);
        _setupRole(ADMIN_ROLE, msg.sender);
        price = 50 ether;
        _signerAddress = 0x42bC5465F5b5D4BAa633550e205A1d7D81e6cACf;
        _contractUri = "ipfs://QmVmJpUzzP7gHbuce1yKL2aeYqkd6cUT4W3xW61XgoBDH1";
    }

    function _baseURI() internal view override returns (string memory) {
        return _baseUri;
    }

    function mint(uint quantity) external {
        require(isSalesActive, "sale is not active");
        require(totalSupply() + quantity <= MAX_SUPPLY, "sold out");
        
        goldz.transferFrom(msg.sender, address(this), price * quantity);
        
        for (uint i = 0; i < quantity; i++) {
            safeMint(msg.sender);
        }
    }

    function mint(uint quantity, address receiver) external onlyRole(ADMIN_ROLE) {
        require(totalSupply() + quantity <= MAX_SUPPLY, "sold out");

        for (uint i = 0; i < quantity; i++) {
            safeMint(receiver);
        }
    }

    function freeMint(uint quantity, uint maxFreeMints, bytes calldata signature) external {
        require(recoverAddress(msg.sender, maxFreeMints, signature) == _signerAddress, "user cannot mint");
        require(isSalesActive, "sale is not active");
        require(totalSupply() + quantity <= MAX_SUPPLY, "quantity exceeds max supply");
        require(quantity + accountToMintedFreeTokens[msg.sender] <= maxFreeMints, "quantity exceeds allowance");
        
        for (uint i = 0; i < quantity; i++) {
            safeMint(msg.sender);
        }
        
        accountToMintedFreeTokens[msg.sender] += quantity;
    }

    function safeMint(address to) internal {
        uint256 tokenId = _tokenIdCounter.current();
        _tokenIdCounter.increment();
        _safeMint(to, tokenId);
    }
    
    function totalSupply() public view returns (uint) {
        return _tokenIdCounter.current();
    }
    
    function contractURI() public view returns (string memory) {
        return _contractUri;
    }
    
    function setBaseURI(string memory newBaseURI) external onlyRole(ADMIN_ROLE) {
        _baseUri = newBaseURI;
    }
    
    function setContractURI(string memory newContractURI) external onlyRole(ADMIN_ROLE) {
        _contractUri = newContractURI;
    }
    
    function toggleSales() external onlyRole(ADMIN_ROLE) {
        isSalesActive = !isSalesActive;
    }
    
    function setPrice(uint newPrice) external onlyRole(ADMIN_ROLE) {
        price = newPrice;
    }

    function burnGoldz() external onlyRole(ADMIN_ROLE) {
        uint balance = goldz.balanceOf(address(this));
        goldz.burn(balance);
    }

    function _hash(address account, uint maxFreeMints) internal view returns (bytes32) {
        return
            _hashTypedDataV4(
                keccak256(
                    abi.encode(
                        keccak256("NFT(uint256 maxFreeMints,address account)"),
                        maxFreeMints,
                        account
                    )
                )
            );
    }

    function recoverAddress(address account, uint maxFreeMints, bytes calldata signature) public view returns(address) {
        return ECDSA.recover(_hash(account, maxFreeMints), signature);
    }

    function setSignerAddress(address signerAddress) external onlyRole(DEFAULT_ADMIN_ROLE) {
        _signerAddress = signerAddress;
    }


    function supportsInterface(bytes4 interfaceId)
        public
        view
        override(ERC721, AccessControl)
        returns (bool)
    {
        return super.supportsInterface(interfaceId);
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.2;

abstract contract IGoldz {
    function burn(uint256 amount) public virtual;
    function balanceOf(address account) public view virtual returns (uint256);
    function transferFrom(
        address sender,
        address recipient,
        uint256 amount
    ) public virtual returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.0 (utils/cryptography/draft-EIP712.sol)

pragma solidity ^0.8.0;

import "./ECDSA.sol";

/**
 * @dev https://eips.ethereum.org/EIPS/eip-712[EIP 712] is a standard for hashing and signing of typed structured data.
 *
 * The encoding specified in the EIP is very generic, and such a generic implementation in Solidity is not feasible,
 * thus this contract does not implement the encoding itself. Protocols need to implement the type-specific encoding
 * they need in their contracts using a combination of `abi.encode` and `keccak256`.
 *
 * This contract implements the EIP 712 domain separator ({_domainSeparatorV4}) that is used as part of the encoding
 * scheme, and the final step of the encoding to obtain the message digest that is then signed via ECDSA
 * ({_hashTypedDataV4}).
 *
 * The implementation of the domain separator was designed to be as efficient as possible while still properly updating
 * the chain id to protect against replay attacks on an eventual fork of the chain.
 *
 * NOTE: This contract implements the version of the encoding known as "v4", as implemented by the JSON RPC method
 * https://docs.metamask.io/guide/signing-data.html[`eth_signTypedDataV4` in MetaMask].
 *
 * _Available since v3.4._
 */
abstract contract EIP712 {
    /* solhint-disable var-name-mixedcase */
    // Cache the domain separator as an immutable value, but also store the chain id that it corresponds to, in order to
    // invalidate the cached domain separator if the chain id changes.
    bytes32 private immutable _CACHED_DOMAIN_SEPARATOR;
    uint256 private immutable _CACHED_CHAIN_ID;
    address private immutable _CACHED_THIS;

    bytes32 private immutable _HASHED_NAME;
    bytes32 private immutable _HASHED_VERSION;
    bytes32 private immutable _TYPE_HASH;

    /* solhint-enable var-name-mixedcase */

    /**
     * @dev Initializes the domain separator and parameter caches.
     *
     * The meaning of `name` and `version` is specified in
     * https://eips.ethereum.org/EIPS/eip-712#definition-of-domainseparator[EIP 712]:
     *
     * - `name`: the user readable name of the signing domain, i.e. the name of the DApp or the protocol.
     * - `version`: the current major version of the signing domain.
     *
     * NOTE: These parameters cannot be changed except through a xref:learn::upgrading-smart-contracts.adoc[smart
     * contract upgrade].
     */
    constructor(string memory name, string memory version) {
        bytes32 hashedName = keccak256(bytes(name));
        bytes32 hashedVersion = keccak256(bytes(version));
        bytes32 typeHash = keccak256(
            "EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)"
        );
        _HASHED_NAME = hashedName;
        _HASHED_VERSION = hashedVersion;
        _CACHED_CHAIN_ID = block.chainid;
        _CACHED_DOMAIN_SEPARATOR = _buildDomainSeparator(typeHash, hashedName, hashedVersion);
        _CACHED_THIS = address(this);
        _TYPE_HASH = typeHash;
    }

    /**
     * @dev Returns the domain separator for the current chain.
     */
    function _domainSeparatorV4() internal view returns (bytes32) {
        if (address(this) == _CACHED_THIS && block.chainid == _CACHED_CHAIN_ID) {
            return _CACHED_DOMAIN_SEPARATOR;
        } else {
            return _buildDomainSeparator(_TYPE_HASH, _HASHED_NAME, _HASHED_VERSION);
        }
    }

    function _buildDomainSeparator(
        bytes32 typeHash,
        bytes32 nameHash,
        bytes32 versionHash
    ) private view returns (bytes32) {
        return keccak256(abi.encode(typeHash, nameHash, versionHash, block.chainid, address(this)));
    }

    /**
     * @dev Given an already https://eips.ethereum.org/EIPS/eip-712#definition-of-hashstruct[hashed struct], this
     * function returns the hash of the fully encoded EIP712 message for this domain.
     *
     * This hash can be used together with {ECDSA-recover} to obtain the signer of a message. For example:
     *
     * ```solidity
     * bytes32 digest = _hashTypedDataV4(keccak256(abi.encode(
     *     keccak256("Mail(address to,string contents)"),
     *     mailTo,
     *     keccak256(bytes(mailContents))
     * )));
     * address signer = ECDSA.recover(digest, signature);
     * ```
     */
    function _hashTypedDataV4(bytes32 structHash) internal view virtual returns (bytes32) {
        return ECDSA.toTypedDataHash(_domainSeparatorV4(), structHash);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.0 (token/ERC721/extensions/ERC721Burnable.sol)

pragma solidity ^0.8.0;

import "../ERC721.sol";
import "../../../utils/Context.sol";

/**
 * @title ERC721 Burnable Token
 * @dev ERC721 Token that can be irreversibly burned (destroyed).
 */
abstract contract ERC721Burnable is Context, ERC721 {
    /**
     * @dev Burns `tokenId`. See {ERC721-_burn}.
     *
     * Requirements:
     *
     * - The caller must own `tokenId` or be an approved operator.
     */
    function burn(uint256 tokenId) public virtual {
        //solhint-disable-next-line max-line-length
        require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721Burnable: caller is not owner nor approved");
        _burn(tokenId);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.0 (utils/Counters.sol)

pragma solidity ^0.8.0;

/**
 * @title Counters
 * @author Matt Condon (@shrugs)
 * @dev Provides counters that can only be incremented, decremented or reset. This can be used e.g. to track the number
 * of elements in a mapping, issuing ERC721 ids, or counting request ids.
 *
 * Include with `using Counters for Counters.Counter;`
 */
library Counters {
    struct Counter {
        // This variable should never be directly accessed by users of the library: interactions must be restricted to
        // the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add
        // this feature: see https://github.com/ethereum/solidity/issues/4637
        uint256 _value; // default: 0
    }

    function current(Counter storage counter) internal view returns (uint256) {
        return counter._value;
    }

    function increment(Counter storage counter) internal {
        unchecked {
            counter._value += 1;
        }
    }

    function decrement(Counter storage counter) internal {
        uint256 value = counter._value;
        require(value > 0, "Counter: decrement overflow");
        unchecked {
            counter._value = value - 1;
        }
    }

    function reset(Counter storage counter) internal {
        counter._value = 0;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.0 (access/AccessControl.sol)

pragma solidity ^0.8.0;

import "./IAccessControl.sol";
import "../utils/Context.sol";
import "../utils/Strings.sol";
import "../utils/introspection/ERC165.sol";

/**
 * @dev Contract module that allows children to implement role-based access
 * control mechanisms. This is a lightweight version that doesn't allow enumerating role
 * members except through off-chain means by accessing the contract event logs. Some
 * applications may benefit from on-chain enumerability, for those cases see
 * {AccessControlEnumerable}.
 *
 * Roles are referred to by their `bytes32` identifier. These should be exposed
 * in the external API and be unique. The best way to achieve this is by
 * using `public constant` hash digests:
 *
 * ```
 * bytes32 public constant MY_ROLE = keccak256("MY_ROLE");
 * ```
 *
 * Roles can be used to represent a set of permissions. To restrict access to a
 * function call, use {hasRole}:
 *
 * ```
 * function foo() public {
 *     require(hasRole(MY_ROLE, msg.sender));
 *     ...
 * }
 * ```
 *
 * Roles can be granted and revoked dynamically via the {grantRole} and
 * {revokeRole} functions. Each role has an associated admin role, and only
 * accounts that have a role's admin role can call {grantRole} and {revokeRole}.
 *
 * By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means
 * that only accounts with this role will be able to grant or revoke other
 * roles. More complex role relationships can be created by using
 * {_setRoleAdmin}.
 *
 * WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to
 * grant and revoke this role. Extra precautions should be taken to secure
 * accounts that have been granted it.
 */
abstract contract AccessControl is Context, IAccessControl, ERC165 {
    struct RoleData {
        mapping(address => bool) members;
        bytes32 adminRole;
    }

    mapping(bytes32 => RoleData) private _roles;

    bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00;

    /**
     * @dev Modifier that checks that an account has a specific role. Reverts
     * with a standardized message including the required role.
     *
     * The format of the revert reason is given by the following regular expression:
     *
     *  /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/
     *
     * _Available since v4.1._
     */
    modifier onlyRole(bytes32 role) {
        _checkRole(role, _msgSender());
        _;
    }

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IAccessControl).interfaceId || super.supportsInterface(interfaceId);
    }

    /**
     * @dev Returns `true` if `account` has been granted `role`.
     */
    function hasRole(bytes32 role, address account) public view override returns (bool) {
        return _roles[role].members[account];
    }

    /**
     * @dev Revert with a standard message if `account` is missing `role`.
     *
     * The format of the revert reason is given by the following regular expression:
     *
     *  /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/
     */
    function _checkRole(bytes32 role, address account) internal view {
        if (!hasRole(role, account)) {
            revert(
                string(
                    abi.encodePacked(
                        "AccessControl: account ",
                        Strings.toHexString(uint160(account), 20),
                        " is missing role ",
                        Strings.toHexString(uint256(role), 32)
                    )
                )
            );
        }
    }

    /**
     * @dev Returns the admin role that controls `role`. See {grantRole} and
     * {revokeRole}.
     *
     * To change a role's admin, use {_setRoleAdmin}.
     */
    function getRoleAdmin(bytes32 role) public view override returns (bytes32) {
        return _roles[role].adminRole;
    }

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function grantRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) {
        _grantRole(role, account);
    }

    /**
     * @dev Revokes `role` from `account`.
     *
     * If `account` had been granted `role`, emits a {RoleRevoked} event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function revokeRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) {
        _revokeRole(role, account);
    }

    /**
     * @dev Revokes `role` from the calling account.
     *
     * Roles are often managed via {grantRole} and {revokeRole}: this function's
     * purpose is to provide a mechanism for accounts to lose their privileges
     * if they are compromised (such as when a trusted device is misplaced).
     *
     * If the calling account had been revoked `role`, emits a {RoleRevoked}
     * event.
     *
     * Requirements:
     *
     * - the caller must be `account`.
     */
    function renounceRole(bytes32 role, address account) public virtual override {
        require(account == _msgSender(), "AccessControl: can only renounce roles for self");

        _revokeRole(role, account);
    }

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event. Note that unlike {grantRole}, this function doesn't perform any
     * checks on the calling account.
     *
     * [WARNING]
     * ====
     * This function should only be called from the constructor when setting
     * up the initial roles for the system.
     *
     * Using this function in any other way is effectively circumventing the admin
     * system imposed by {AccessControl}.
     * ====
     *
     * NOTE: This function is deprecated in favor of {_grantRole}.
     */
    function _setupRole(bytes32 role, address account) internal virtual {
        _grantRole(role, account);
    }

    /**
     * @dev Sets `adminRole` as ``role``'s admin role.
     *
     * Emits a {RoleAdminChanged} event.
     */
    function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual {
        bytes32 previousAdminRole = getRoleAdmin(role);
        _roles[role].adminRole = adminRole;
        emit RoleAdminChanged(role, previousAdminRole, adminRole);
    }

    /**
     * @dev Grants `role` to `account`.
     *
     * Internal function without access restriction.
     */
    function _grantRole(bytes32 role, address account) internal virtual {
        if (!hasRole(role, account)) {
            _roles[role].members[account] = true;
            emit RoleGranted(role, account, _msgSender());
        }
    }

    /**
     * @dev Revokes `role` from `account`.
     *
     * Internal function without access restriction.
     */
    function _revokeRole(bytes32 role, address account) internal virtual {
        if (hasRole(role, account)) {
            _roles[role].members[account] = false;
            emit RoleRevoked(role, account, _msgSender());
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.0 (token/ERC721/ERC721.sol)

pragma solidity ^0.8.0;

import "./IERC721.sol";
import "./IERC721Receiver.sol";
import "./extensions/IERC721Metadata.sol";
import "../../utils/Address.sol";
import "../../utils/Context.sol";
import "../../utils/Strings.sol";
import "../../utils/introspection/ERC165.sol";

/**
 * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
 * the Metadata extension, but not including the Enumerable extension, which is available separately as
 * {ERC721Enumerable}.
 */
contract ERC721 is Context, ERC165, IERC721, IERC721Metadata {
    using Address for address;
    using Strings for uint256;

    // Token name
    string private _name;

    // Token symbol
    string private _symbol;

    // Mapping from token ID to owner address
    mapping(uint256 => address) private _owners;

    // Mapping owner address to token count
    mapping(address => uint256) private _balances;

    // Mapping from token ID to approved address
    mapping(uint256 => address) private _tokenApprovals;

    // Mapping from owner to operator approvals
    mapping(address => mapping(address => bool)) private _operatorApprovals;

    /**
     * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection.
     */
    constructor(string memory name_, string memory symbol_) {
        _name = name_;
        _symbol = symbol_;
    }

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {
        return
            interfaceId == type(IERC721).interfaceId ||
            interfaceId == type(IERC721Metadata).interfaceId ||
            super.supportsInterface(interfaceId);
    }

    /**
     * @dev See {IERC721-balanceOf}.
     */
    function balanceOf(address owner) public view virtual override returns (uint256) {
        require(owner != address(0), "ERC721: balance query for the zero address");
        return _balances[owner];
    }

    /**
     * @dev See {IERC721-ownerOf}.
     */
    function ownerOf(uint256 tokenId) public view virtual override returns (address) {
        address owner = _owners[tokenId];
        require(owner != address(0), "ERC721: owner query for nonexistent token");
        return owner;
    }

    /**
     * @dev See {IERC721Metadata-name}.
     */
    function name() public view virtual override returns (string memory) {
        return _name;
    }

    /**
     * @dev See {IERC721Metadata-symbol}.
     */
    function symbol() public view virtual override returns (string memory) {
        return _symbol;
    }

    /**
     * @dev See {IERC721Metadata-tokenURI}.
     */
    function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
        require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token");

        string memory baseURI = _baseURI();
        return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : "";
    }

    /**
     * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
     * token will be the concatenation of the `baseURI` and the `tokenId`. Empty
     * by default, can be overriden in child contracts.
     */
    function _baseURI() internal view virtual returns (string memory) {
        return "";
    }

    /**
     * @dev See {IERC721-approve}.
     */
    function approve(address to, uint256 tokenId) public virtual override {
        address owner = ERC721.ownerOf(tokenId);
        require(to != owner, "ERC721: approval to current owner");

        require(
            _msgSender() == owner || isApprovedForAll(owner, _msgSender()),
            "ERC721: approve caller is not owner nor approved for all"
        );

        _approve(to, tokenId);
    }

    /**
     * @dev See {IERC721-getApproved}.
     */
    function getApproved(uint256 tokenId) public view virtual override returns (address) {
        require(_exists(tokenId), "ERC721: approved query for nonexistent token");

        return _tokenApprovals[tokenId];
    }

    /**
     * @dev See {IERC721-setApprovalForAll}.
     */
    function setApprovalForAll(address operator, bool approved) public virtual override {
        _setApprovalForAll(_msgSender(), operator, approved);
    }

    /**
     * @dev See {IERC721-isApprovedForAll}.
     */
    function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {
        return _operatorApprovals[owner][operator];
    }

    /**
     * @dev See {IERC721-transferFrom}.
     */
    function transferFrom(
        address from,
        address to,
        uint256 tokenId
    ) public virtual override {
        //solhint-disable-next-line max-line-length
        require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved");

        _transfer(from, to, tokenId);
    }

    /**
     * @dev See {IERC721-safeTransferFrom}.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId
    ) public virtual override {
        safeTransferFrom(from, to, tokenId, "");
    }

    /**
     * @dev See {IERC721-safeTransferFrom}.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId,
        bytes memory _data
    ) public virtual override {
        require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved");
        _safeTransfer(from, to, tokenId, _data);
    }

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
     * are aware of the ERC721 protocol to prevent tokens from being forever locked.
     *
     * `_data` is additional data, it has no specified format and it is sent in call to `to`.
     *
     * This internal function is equivalent to {safeTransferFrom}, and can be used to e.g.
     * implement alternative mechanisms to perform token transfer, such as signature-based.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function _safeTransfer(
        address from,
        address to,
        uint256 tokenId,
        bytes memory _data
    ) internal virtual {
        _transfer(from, to, tokenId);
        require(_checkOnERC721Received(from, to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer");
    }

    /**
     * @dev Returns whether `tokenId` exists.
     *
     * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
     *
     * Tokens start existing when they are minted (`_mint`),
     * and stop existing when they are burned (`_burn`).
     */
    function _exists(uint256 tokenId) internal view virtual returns (bool) {
        return _owners[tokenId] != address(0);
    }

    /**
     * @dev Returns whether `spender` is allowed to manage `tokenId`.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) {
        require(_exists(tokenId), "ERC721: operator query for nonexistent token");
        address owner = ERC721.ownerOf(tokenId);
        return (spender == owner || getApproved(tokenId) == spender || isApprovedForAll(owner, spender));
    }

    /**
     * @dev Safely mints `tokenId` and transfers it to `to`.
     *
     * Requirements:
     *
     * - `tokenId` must not exist.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function _safeMint(address to, uint256 tokenId) internal virtual {
        _safeMint(to, tokenId, "");
    }

    /**
     * @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is
     * forwarded in {IERC721Receiver-onERC721Received} to contract recipients.
     */
    function _safeMint(
        address to,
        uint256 tokenId,
        bytes memory _data
    ) internal virtual {
        _mint(to, tokenId);
        require(
            _checkOnERC721Received(address(0), to, tokenId, _data),
            "ERC721: transfer to non ERC721Receiver implementer"
        );
    }

    /**
     * @dev Mints `tokenId` and transfers it to `to`.
     *
     * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible
     *
     * Requirements:
     *
     * - `tokenId` must not exist.
     * - `to` cannot be the zero address.
     *
     * Emits a {Transfer} event.
     */
    function _mint(address to, uint256 tokenId) internal virtual {
        require(to != address(0), "ERC721: mint to the zero address");
        require(!_exists(tokenId), "ERC721: token already minted");

        _beforeTokenTransfer(address(0), to, tokenId);

        _balances[to] += 1;
        _owners[tokenId] = to;

        emit Transfer(address(0), to, tokenId);
    }

    /**
     * @dev Destroys `tokenId`.
     * The approval is cleared when the token is burned.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     *
     * Emits a {Transfer} event.
     */
    function _burn(uint256 tokenId) internal virtual {
        address owner = ERC721.ownerOf(tokenId);

        _beforeTokenTransfer(owner, address(0), tokenId);

        // Clear approvals
        _approve(address(0), tokenId);

        _balances[owner] -= 1;
        delete _owners[tokenId];

        emit Transfer(owner, address(0), tokenId);
    }

    /**
     * @dev Transfers `tokenId` from `from` to `to`.
     *  As opposed to {transferFrom}, this imposes no restrictions on msg.sender.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     *
     * Emits a {Transfer} event.
     */
    function _transfer(
        address from,
        address to,
        uint256 tokenId
    ) internal virtual {
        require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer of token that is not own");
        require(to != address(0), "ERC721: transfer to the zero address");

        _beforeTokenTransfer(from, to, tokenId);

        // Clear approvals from the previous owner
        _approve(address(0), tokenId);

        _balances[from] -= 1;
        _balances[to] += 1;
        _owners[tokenId] = to;

        emit Transfer(from, to, tokenId);
    }

    /**
     * @dev Approve `to` to operate on `tokenId`
     *
     * Emits a {Approval} event.
     */
    function _approve(address to, uint256 tokenId) internal virtual {
        _tokenApprovals[tokenId] = to;
        emit Approval(ERC721.ownerOf(tokenId), to, tokenId);
    }

    /**
     * @dev Approve `operator` to operate on all of `owner` tokens
     *
     * Emits a {ApprovalForAll} event.
     */
    function _setApprovalForAll(
        address owner,
        address operator,
        bool approved
    ) internal virtual {
        require(owner != operator, "ERC721: approve to caller");
        _operatorApprovals[owner][operator] = approved;
        emit ApprovalForAll(owner, operator, approved);
    }

    /**
     * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
     * The call is not executed if the target address is not a contract.
     *
     * @param from address representing the previous owner of the given token ID
     * @param to target address that will receive the tokens
     * @param tokenId uint256 ID of the token to be transferred
     * @param _data bytes optional data to send along with the call
     * @return bool whether the call correctly returned the expected magic value
     */
    function _checkOnERC721Received(
        address from,
        address to,
        uint256 tokenId,
        bytes memory _data
    ) private returns (bool) {
        if (to.isContract()) {
            try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) {
                return retval == IERC721Receiver.onERC721Received.selector;
            } catch (bytes memory reason) {
                if (reason.length == 0) {
                    revert("ERC721: transfer to non ERC721Receiver implementer");
                } else {
                    assembly {
                        revert(add(32, reason), mload(reason))
                    }
                }
            }
        } else {
            return true;
        }
    }

    /**
     * @dev Hook that is called before any token transfer. This includes minting
     * and burning.
     *
     * Calling conditions:
     *
     * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
     * transferred to `to`.
     * - When `from` is zero, `tokenId` will be minted for `to`.
     * - When `to` is zero, ``from``'s `tokenId` will be burned.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _beforeTokenTransfer(
        address from,
        address to,
        uint256 tokenId
    ) internal virtual {}
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.0 (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the amount of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves `amount` tokens from the caller's account to `recipient`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address recipient, uint256 amount) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 amount) external returns (bool);

    /**
     * @dev Moves `amount` tokens from `sender` to `recipient` using the
     * allowance mechanism. `amount` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address sender,
        address recipient,
        uint256 amount
    ) external returns (bool);

    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.0 (utils/cryptography/ECDSA.sol)

pragma solidity ^0.8.0;

import "../Strings.sol";

/**
 * @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations.
 *
 * These functions can be used to verify that a message was signed by the holder
 * of the private keys of a given address.
 */
library ECDSA {
    enum RecoverError {
        NoError,
        InvalidSignature,
        InvalidSignatureLength,
        InvalidSignatureS,
        InvalidSignatureV
    }

    function _throwError(RecoverError error) private pure {
        if (error == RecoverError.NoError) {
            return; // no error: do nothing
        } else if (error == RecoverError.InvalidSignature) {
            revert("ECDSA: invalid signature");
        } else if (error == RecoverError.InvalidSignatureLength) {
            revert("ECDSA: invalid signature length");
        } else if (error == RecoverError.InvalidSignatureS) {
            revert("ECDSA: invalid signature 's' value");
        } else if (error == RecoverError.InvalidSignatureV) {
            revert("ECDSA: invalid signature 'v' value");
        }
    }

    /**
     * @dev Returns the address that signed a hashed message (`hash`) with
     * `signature` or error string. This address can then be used for verification purposes.
     *
     * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
     * this function rejects them by requiring the `s` value to be in the lower
     * half order, and the `v` value to be either 27 or 28.
     *
     * IMPORTANT: `hash` _must_ be the result of a hash operation for the
     * verification to be secure: it is possible to craft signatures that
     * recover to arbitrary addresses for non-hashed data. A safe way to ensure
     * this is by receiving a hash of the original message (which may otherwise
     * be too long), and then calling {toEthSignedMessageHash} on it.
     *
     * Documentation for signature generation:
     * - with https://web3js.readthedocs.io/en/v1.3.4/web3-eth-accounts.html#sign[Web3.js]
     * - with https://docs.ethers.io/v5/api/signer/#Signer-signMessage[ethers]
     *
     * _Available since v4.3._
     */
    function tryRecover(bytes32 hash, bytes memory signature) internal pure returns (address, RecoverError) {
        // Check the signature length
        // - case 65: r,s,v signature (standard)
        // - case 64: r,vs signature (cf https://eips.ethereum.org/EIPS/eip-2098) _Available since v4.1._
        if (signature.length == 65) {
            bytes32 r;
            bytes32 s;
            uint8 v;
            // ecrecover takes the signature parameters, and the only way to get them
            // currently is to use assembly.
            assembly {
                r := mload(add(signature, 0x20))
                s := mload(add(signature, 0x40))
                v := byte(0, mload(add(signature, 0x60)))
            }
            return tryRecover(hash, v, r, s);
        } else if (signature.length == 64) {
            bytes32 r;
            bytes32 vs;
            // ecrecover takes the signature parameters, and the only way to get them
            // currently is to use assembly.
            assembly {
                r := mload(add(signature, 0x20))
                vs := mload(add(signature, 0x40))
            }
            return tryRecover(hash, r, vs);
        } else {
            return (address(0), RecoverError.InvalidSignatureLength);
        }
    }

    /**
     * @dev Returns the address that signed a hashed message (`hash`) with
     * `signature`. This address can then be used for verification purposes.
     *
     * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
     * this function rejects them by requiring the `s` value to be in the lower
     * half order, and the `v` value to be either 27 or 28.
     *
     * IMPORTANT: `hash` _must_ be the result of a hash operation for the
     * verification to be secure: it is possible to craft signatures that
     * recover to arbitrary addresses for non-hashed data. A safe way to ensure
     * this is by receiving a hash of the original message (which may otherwise
     * be too long), and then calling {toEthSignedMessageHash} on it.
     */
    function recover(bytes32 hash, bytes memory signature) internal pure returns (address) {
        (address recovered, RecoverError error) = tryRecover(hash, signature);
        _throwError(error);
        return recovered;
    }

    /**
     * @dev Overload of {ECDSA-tryRecover} that receives the `r` and `vs` short-signature fields separately.
     *
     * See https://eips.ethereum.org/EIPS/eip-2098[EIP-2098 short signatures]
     *
     * _Available since v4.3._
     */
    function tryRecover(
        bytes32 hash,
        bytes32 r,
        bytes32 vs
    ) internal pure returns (address, RecoverError) {
        bytes32 s;
        uint8 v;
        assembly {
            s := and(vs, 0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff)
            v := add(shr(255, vs), 27)
        }
        return tryRecover(hash, v, r, s);
    }

    /**
     * @dev Overload of {ECDSA-recover} that receives the `r and `vs` short-signature fields separately.
     *
     * _Available since v4.2._
     */
    function recover(
        bytes32 hash,
        bytes32 r,
        bytes32 vs
    ) internal pure returns (address) {
        (address recovered, RecoverError error) = tryRecover(hash, r, vs);
        _throwError(error);
        return recovered;
    }

    /**
     * @dev Overload of {ECDSA-tryRecover} that receives the `v`,
     * `r` and `s` signature fields separately.
     *
     * _Available since v4.3._
     */
    function tryRecover(
        bytes32 hash,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) internal pure returns (address, RecoverError) {
        // EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature
        // unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines
        // the valid range for s in (301): 0 < s < secp256k1n ÷ 2 + 1, and for v in (302): v ∈ {27, 28}. Most
        // signatures from current libraries generate a unique signature with an s-value in the lower half order.
        //
        // If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value
        // with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or
        // vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept
        // these malleable signatures as well.
        if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) {
            return (address(0), RecoverError.InvalidSignatureS);
        }
        if (v != 27 && v != 28) {
            return (address(0), RecoverError.InvalidSignatureV);
        }

        // If the signature is valid (and not malleable), return the signer address
        address signer = ecrecover(hash, v, r, s);
        if (signer == address(0)) {
            return (address(0), RecoverError.InvalidSignature);
        }

        return (signer, RecoverError.NoError);
    }

    /**
     * @dev Overload of {ECDSA-recover} that receives the `v`,
     * `r` and `s` signature fields separately.
     */
    function recover(
        bytes32 hash,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) internal pure returns (address) {
        (address recovered, RecoverError error) = tryRecover(hash, v, r, s);
        _throwError(error);
        return recovered;
    }

    /**
     * @dev Returns an Ethereum Signed Message, created from a `hash`. This
     * produces hash corresponding to the one signed with the
     * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]
     * JSON-RPC method as part of EIP-191.
     *
     * See {recover}.
     */
    function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32) {
        // 32 is the length in bytes of hash,
        // enforced by the type signature above
        return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n32", hash));
    }

    /**
     * @dev Returns an Ethereum Signed Message, created from `s`. This
     * produces hash corresponding to the one signed with the
     * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]
     * JSON-RPC method as part of EIP-191.
     *
     * See {recover}.
     */
    function toEthSignedMessageHash(bytes memory s) internal pure returns (bytes32) {
        return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n", Strings.toString(s.length), s));
    }

    /**
     * @dev Returns an Ethereum Signed Typed Data, created from a
     * `domainSeparator` and a `structHash`. This produces hash corresponding
     * to the one signed with the
     * https://eips.ethereum.org/EIPS/eip-712[`eth_signTypedData`]
     * JSON-RPC method as part of EIP-712.
     *
     * See {recover}.
     */
    function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32) {
        return keccak256(abi.encodePacked("\x19\x01", domainSeparator, structHash));
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.0 (utils/Context.sol)

pragma solidity ^0.8.0;

/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.0 (utils/introspection/ERC165.sol)

pragma solidity ^0.8.0;

import "./IERC165.sol";

/**
 * @dev Implementation of the {IERC165} interface.
 *
 * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
 * for the additional interface id that will be supported. For example:
 *
 * ```solidity
 * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
 *     return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
 * }
 * ```
 *
 * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
 */
abstract contract ERC165 is IERC165 {
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IERC165).interfaceId;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.0 (utils/Strings.sol)

pragma solidity ^0.8.0;

/**
 * @dev String operations.
 */
library Strings {
    bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef";

    /**
     * @dev Converts a `uint256` to its ASCII `string` decimal representation.
     */
    function toString(uint256 value) internal pure returns (string memory) {
        // Inspired by OraclizeAPI's implementation - MIT licence
        // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol

        if (value == 0) {
            return "0";
        }
        uint256 temp = value;
        uint256 digits;
        while (temp != 0) {
            digits++;
            temp /= 10;
        }
        bytes memory buffer = new bytes(digits);
        while (value != 0) {
            digits -= 1;
            buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
            value /= 10;
        }
        return string(buffer);
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
     */
    function toHexString(uint256 value) internal pure returns (string memory) {
        if (value == 0) {
            return "0x00";
        }
        uint256 temp = value;
        uint256 length = 0;
        while (temp != 0) {
            length++;
            temp >>= 8;
        }
        return toHexString(value, length);
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
     */
    function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
        bytes memory buffer = new bytes(2 * length + 2);
        buffer[0] = "0";
        buffer[1] = "x";
        for (uint256 i = 2 * length + 1; i > 1; --i) {
            buffer[i] = _HEX_SYMBOLS[value & 0xf];
            value >>= 4;
        }
        require(value == 0, "Strings: hex length insufficient");
        return string(buffer);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.0 (utils/Address.sol)

pragma solidity ^0.8.0;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize, which returns 0 for contracts in
        // construction, since the code is only stored at the end of the
        // constructor execution.

        uint256 size;
        assembly {
            size := extcodesize(account)
        }
        return size > 0;
    }

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        (bool success, ) = recipient.call{value: amount}("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCall(target, data, "Address: low-level call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }

    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        require(isContract(target), "Address: call to non-contract");

        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        require(isContract(target), "Address: static call to non-contract");

        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(isContract(target), "Address: delegate call to non-contract");

        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
            // Look for revert reason and bubble it up if present
            if (returndata.length > 0) {
                // The easiest way to bubble the revert reason is using memory via assembly

                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.0 (token/ERC721/extensions/IERC721Metadata.sol)

pragma solidity ^0.8.0;

import "../IERC721.sol";

/**
 * @title ERC-721 Non-Fungible Token Standard, optional metadata extension
 * @dev See https://eips.ethereum.org/EIPS/eip-721
 */
interface IERC721Metadata is IERC721 {
    /**
     * @dev Returns the token collection name.
     */
    function name() external view returns (string memory);

    /**
     * @dev Returns the token collection symbol.
     */
    function symbol() external view returns (string memory);

    /**
     * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
     */
    function tokenURI(uint256 tokenId) external view returns (string memory);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.0 (token/ERC721/IERC721Receiver.sol)

pragma solidity ^0.8.0;

/**
 * @title ERC721 token receiver interface
 * @dev Interface for any contract that wants to support safeTransfers
 * from ERC721 asset contracts.
 */
interface IERC721Receiver {
    /**
     * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
     * by `operator` from `from`, this function is called.
     *
     * It must return its Solidity selector to confirm the token transfer.
     * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.
     *
     * The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`.
     */
    function onERC721Received(
        address operator,
        address from,
        uint256 tokenId,
        bytes calldata data
    ) external returns (bytes4);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.0 (token/ERC721/IERC721.sol)

pragma solidity ^0.8.0;

import "../../utils/introspection/IERC165.sol";

/**
 * @dev Required interface of an ERC721 compliant contract.
 */
interface IERC721 is IERC165 {
    /**
     * @dev Emitted when `tokenId` token is transferred from `from` to `to`.
     */
    event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
     */
    event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
     */
    event ApprovalForAll(address indexed owner, address indexed operator, bool approved);

    /**
     * @dev Returns the number of tokens in ``owner``'s account.
     */
    function balanceOf(address owner) external view returns (uint256 balance);

    /**
     * @dev Returns the owner of the `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function ownerOf(uint256 tokenId) external view returns (address owner);

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
     * are aware of the ERC721 protocol to prevent tokens from being forever locked.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external;

    /**
     * @dev Transfers `tokenId` token from `from` to `to`.
     *
     * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external;

    /**
     * @dev Gives permission to `to` to transfer `tokenId` token to another account.
     * The approval is cleared when the token is transferred.
     *
     * Only a single account can be approved at a time, so approving the zero address clears previous approvals.
     *
     * Requirements:
     *
     * - The caller must own the token or be an approved operator.
     * - `tokenId` must exist.
     *
     * Emits an {Approval} event.
     */
    function approve(address to, uint256 tokenId) external;

    /**
     * @dev Returns the account approved for `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function getApproved(uint256 tokenId) external view returns (address operator);

    /**
     * @dev Approve or remove `operator` as an operator for the caller.
     * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
     *
     * Requirements:
     *
     * - The `operator` cannot be the caller.
     *
     * Emits an {ApprovalForAll} event.
     */
    function setApprovalForAll(address operator, bool _approved) external;

    /**
     * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
     *
     * See {setApprovalForAll}
     */
    function isApprovedForAll(address owner, address operator) external view returns (bool);

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId,
        bytes calldata data
    ) external;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.0 (access/IAccessControl.sol)

pragma solidity ^0.8.0;

/**
 * @dev External interface of AccessControl declared to support ERC165 detection.
 */
interface IAccessControl {
    /**
     * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole`
     *
     * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite
     * {RoleAdminChanged} not being emitted signaling this.
     *
     * _Available since v3.1._
     */
    event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole);

    /**
     * @dev Emitted when `account` is granted `role`.
     *
     * `sender` is the account that originated the contract call, an admin role
     * bearer except when using {AccessControl-_setupRole}.
     */
    event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender);

    /**
     * @dev Emitted when `account` is revoked `role`.
     *
     * `sender` is the account that originated the contract call:
     *   - if using `revokeRole`, it is the admin role bearer
     *   - if using `renounceRole`, it is the role bearer (i.e. `account`)
     */
    event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender);

    /**
     * @dev Returns `true` if `account` has been granted `role`.
     */
    function hasRole(bytes32 role, address account) external view returns (bool);

    /**
     * @dev Returns the admin role that controls `role`. See {grantRole} and
     * {revokeRole}.
     *
     * To change a role's admin, use {AccessControl-_setRoleAdmin}.
     */
    function getRoleAdmin(bytes32 role) external view returns (bytes32);

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function grantRole(bytes32 role, address account) external;

    /**
     * @dev Revokes `role` from `account`.
     *
     * If `account` had been granted `role`, emits a {RoleRevoked} event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function revokeRole(bytes32 role, address account) external;

    /**
     * @dev Revokes `role` from the calling account.
     *
     * Roles are often managed via {grantRole} and {revokeRole}: this function's
     * purpose is to provide a mechanism for accounts to lose their privileges
     * if they are compromised (such as when a trusted device is misplaced).
     *
     * If the calling account had been granted `role`, emits a {RoleRevoked}
     * event.
     *
     * Requirements:
     *
     * - the caller must be `account`.
     */
    function renounceRole(bytes32 role, address account) external;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.0 (utils/introspection/IERC165.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[EIP].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface IERC165 {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}

{
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  }
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"approved","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"operator","type":"address"},{"indexed":false,"internalType":"bool","name":"approved","type":"bool"}],"name":"ApprovalForAll","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"bytes32","name":"previousAdminRole","type":"bytes32"},{"indexed":true,"internalType":"bytes32","name":"newAdminRole","type":"bytes32"}],"name":"RoleAdminChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":true,"internalType":"address","name":"sender","type":"address"}],"name":"RoleGranted","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":true,"internalType":"address","name":"sender","type":"address"}],"name":"RoleRevoked","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[],"name":"ADMIN_ROLE","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"DEFAULT_ADMIN_ROLE","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"MAX_SUPPLY","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"accountToMintedFreeTokens","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"approve","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"burn","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"burnGoldz","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"contractURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"quantity","type":"uint256"},{"internalType":"uint256","name":"maxFreeMints","type":"uint256"},{"internalType":"bytes","name":"signature","type":"bytes"}],"name":"freeMint","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getApproved","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"}],"name":"getRoleAdmin","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"grantRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"hasRole","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"operator","type":"address"}],"name":"isApprovedForAll","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"isSalesActive","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"quantity","type":"uint256"},{"internalType":"address","name":"receiver","type":"address"}],"name":"mint","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"quantity","type":"uint256"}],"name":"mint","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"ownerOf","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"price","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"},{"internalType":"uint256","name":"maxFreeMints","type":"uint256"},{"internalType":"bytes","name":"signature","type":"bytes"}],"name":"recoverAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"renounceRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"revokeRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"bool","name":"approved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"newBaseURI","type":"string"}],"name":"setBaseURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"newContractURI","type":"string"}],"name":"setContractURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"newPrice","type":"uint256"}],"name":"setPrice","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"signerAddress","type":"address"}],"name":"setSignerAddress","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"toggleSales","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"transferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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