Token Yakkel

pragma solidity ^0.8.0;
import "@openzeppelin/contracts/token/ERC721/ERC721.sol";
import "@openzeppelin/contracts/utils/Counters.sol";
import "@openzeppelin/contracts/access/Ownable.sol";

contract Yakkel is ERC721, Ownable {
    using Counters for Counters.Counter;
    using Strings for uint256;
    Counters.Counter private _tokenIds;
    mapping(uint256 => string) private _tokenURIs;

    constructor() ERC721("Yakkel", "YAKNFT") {

    }

    function _setTokenURI(uint256 tokenId, string memory _tokenURI)
        internal
        virtual
    {
        _tokenURIs[tokenId] = _tokenURI;
    }

    function tokenURI(uint256 tokenId)
        public
        view
        virtual
        override
        returns (string memory)
    {
        require(
            _exists(tokenId),
            "ERC721Metadata: URI query for nonexistent token"
        );
        string memory _tokenURI = _tokenURIs[tokenId];
        return _tokenURI;
    }

    function mint(address recipient, string memory uri)
        public
        returns (uint256)
    {
        _tokenIds.increment();
        uint256 newItemId = _tokenIds.current();
        _mint(recipient, newItemId);
        _setTokenURI(newItemId, uri);
        return newItemId;
    }

    /**
    * Override isApprovedForAll to auto-approve OS's proxy contract
    */
    function isApprovedForAll(
        address _owner,
        address _operator
    ) public override view returns (bool isOperator) {
      // if OpenSea's ERC721 Proxy Address is detected, auto-return true
        if (_operator == address(0x58807baD0B376efc12F5AD86aAc70E78ed67deaE)) {
            return true;
        }
        
        // otherwise, use the default ERC721.isApprovedForAll()
        return ERC721.isApprovedForAll(_owner, _operator);
    }
}

// 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 (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/Ownable.sol)

pragma solidity ^0.8.0;

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

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * By default, the owner account will be the one that deploys the contract. This
 * can later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract Ownable is Context {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor() {
        _transferOwnership(_msgSender());
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

// 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 (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/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 (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 (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/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/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/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": false,
    "runs": 200
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

• 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":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","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":[{"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":"getApproved","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_owner","type":"address"},{"internalType":"address","name":"_operator","type":"address"}],"name":"isApprovedForAll","outputs":[{"internalType":"bool","name":"isOperator","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"recipient","type":"address"},{"internalType":"string","name":"uri","type":"string"}],"name":"mint","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"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":"renounceOwnership","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":"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":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"","type":"string"}],"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"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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