Contract Source Code (Solidity Standard Json-Input format)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

// File: @openzeppelin/contracts/utils/Context.sol

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "@openzeppelin/contracts/security/ReentrancyGuard.sol";

/*
 * @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 GSN 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 payable) {
        return payable(msg.sender);
    }

    function _msgData() internal view virtual returns (bytes memory) {
        this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
        return msg.data;
    }
}

// File: @openzeppelin/contracts/introspection/IERC165.sol





/**
 * @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);
}

// File: @openzeppelin/contracts/token/ERC721/IERC721.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;
}

// File: @openzeppelin/contracts/token/ERC721/IERC721Metadata.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);
}

// File: @openzeppelin/contracts/token/ERC721/IERC721Enumerable.sol






/**
 * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension
 * @dev See https://eips.ethereum.org/EIPS/eip-721
 */
interface IERC721Enumerable is IERC721 {

    /**
     * @dev Returns the total amount of tokens stored by the contract.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns a token ID owned by `owner` at a given `index` of its token list.
     * Use along with {balanceOf} to enumerate all of ``owner``'s tokens.
     */
    function tokenOfOwnerByIndex(address owner, uint256 index) external view returns (uint256 tokenId);

    /**
     * @dev Returns a token ID at a given `index` of all the tokens stored by the contract.
     * Use along with {totalSupply} to enumerate all tokens.
     */
    function tokenByIndex(uint256 index) external view returns (uint256);
}

// File: @openzeppelin/contracts/token/ERC721/IERC721Receiver.sol





/**
 * @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);
}

// File: @openzeppelin/contracts/introspection/ERC165.sol






/**
 * @dev Implementation of the {IERC165} interface.
 *
 * Contracts may inherit from this and call {_registerInterface} to declare
 * their support of an interface.
 */
abstract contract ERC165 is IERC165 {
    /*
     * bytes4(keccak256('supportsInterface(bytes4)')) == 0x01ffc9a7
     */
    bytes4 private constant _INTERFACE_ID_ERC165 = 0x01ffc9a7;

    /**
     * @dev Mapping of interface ids to whether or not it's supported.
     */
    mapping(bytes4 => bool) private _supportedInterfaces;

    constructor () internal {
        // Derived contracts need only register support for their own interfaces,
        // we register support for ERC165 itself here
        _registerInterface(_INTERFACE_ID_ERC165);
    }

    /**
     * @dev See {IERC165-supportsInterface}.
     *
     * Time complexity O(1), guaranteed to always use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return _supportedInterfaces[interfaceId];
    }

    /**
     * @dev Registers the contract as an implementer of the interface defined by
     * `interfaceId`. Support of the actual ERC165 interface is automatic and
     * registering its interface id is not required.
     *
     * See {IERC165-supportsInterface}.
     *
     * Requirements:
     *
     * - `interfaceId` cannot be the ERC165 invalid interface (`0xffffffff`).
     */
    function _registerInterface(bytes4 interfaceId) internal virtual {
        require(interfaceId != 0xffffffff, "ERC165: invalid interface id");
        _supportedInterfaces[interfaceId] = true;
    }
}

// File: @openzeppelin/contracts/math/SafeMath.sol





/**
 * @dev Wrappers over Solidity's arithmetic operations with added overflow
 * checks.
 *
 * Arithmetic operations in Solidity wrap on overflow. This can easily result
 * in bugs, because programmers usually assume that an overflow raises an
 * error, which is the standard behavior in high level programming languages.
 * `SafeMath` restores this intuition by reverting the transaction when an
 * operation overflows.
 *
 * Using this library instead of the unchecked operations eliminates an entire
 * class of bugs, so it's recommended to use it always.
 */
library SafeMath {
    /**
     * @dev Returns the addition of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        uint256 c = a + b;
        if (c < a) return (false, 0);
        return (true, c);
    }

    /**
     * @dev Returns the substraction of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        if (b > a) return (false, 0);
        return (true, a - b);
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
        // benefit is lost if 'b' is also tested.
        // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
        if (a == 0) return (true, 0);
        uint256 c = a * b;
        if (c / a != b) return (false, 0);
        return (true, c);
    }

    /**
     * @dev Returns the division of two unsigned integers, with a division by zero flag.
     *
     * _Available since v3.4._
     */
    function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        if (b == 0) return (false, 0);
        return (true, a / b);
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
     *
     * _Available since v3.4._
     */
    function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        if (b == 0) return (false, 0);
        return (true, a % b);
    }

    /**
     * @dev Returns the addition of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `+` operator.
     *
     * Requirements:
     *
     * - Addition cannot overflow.
     */
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, "SafeMath: addition overflow");
        return c;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b <= a, "SafeMath: subtraction overflow");
        return a - b;
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `*` operator.
     *
     * Requirements:
     *
     * - Multiplication cannot overflow.
     */
    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        if (a == 0) return 0;
        uint256 c = a * b;
        require(c / a == b, "SafeMath: multiplication overflow");
        return c;
    }

    /**
     * @dev Returns the integer division of two unsigned integers, reverting on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b > 0, "SafeMath: division by zero");
        return a / b;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * reverting when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b > 0, "SafeMath: modulo by zero");
        return a % b;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
     * overflow (when the result is negative).
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {trySub}.
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b <= a, errorMessage);
        return a - b;
    }

    /**
     * @dev Returns the integer division of two unsigned integers, reverting with custom message on
     * division by zero. The result is rounded towards zero.
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {tryDiv}.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b > 0, errorMessage);
        return a / b;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * reverting with custom message when dividing by zero.
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {tryMod}.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b > 0, errorMessage);
        return a % b;
    }
}

// File: @openzeppelin/contracts/utils/Address.sol





/**
 * @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;
        // solhint-disable-next-line no-inline-assembly
        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");

        // solhint-disable-next-line avoid-low-level-calls, avoid-call-value
        (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");

        // solhint-disable-next-line avoid-low-level-calls
        (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");

        // solhint-disable-next-line avoid-low-level-calls
        (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");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return _verifyCallResult(success, returndata, errorMessage);
    }

    function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private 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

                // solhint-disable-next-line no-inline-assembly
                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

// File: @openzeppelin/contracts/utils/EnumerableSet.sol





/**
 * @dev Library for managing
 * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive
 * types.
 *
 * Sets have the following properties:
 *
 * - Elements are added, removed, and checked for existence in constant time
 * (O(1)).
 * - Elements are enumerated in O(n). No guarantees are made on the ordering.
 *
 * ```
 * contract Example {
 *     // Add the library methods
 *     using EnumerableSet for EnumerableSet.AddressSet;
 *
 *     // Declare a set state variable
 *     EnumerableSet.AddressSet private mySet;
 * }
 * ```
 *
 * As of v3.3.0, sets of type `bytes32` (`Bytes32Set`), `address` (`AddressSet`)
 * and `uint256` (`UintSet`) are supported.
 */
library EnumerableSet {
    // To implement this library for multiple types with as little code
    // repetition as possible, we write it in terms of a generic Set type with
    // bytes32 values.
    // The Set implementation uses private functions, and user-facing
    // implementations (such as AddressSet) are just wrappers around the
    // underlying Set.
    // This means that we can only create new EnumerableSets for types that fit
    // in bytes32.

    struct Set {
        // Storage of set values
        bytes32[] _values;

        // Position of the value in the `values` array, plus 1 because index 0
        // means a value is not in the set.
        mapping (bytes32 => uint256) _indexes;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function _add(Set storage set, bytes32 value) private returns (bool) {
        if (!_contains(set, value)) {
            set._values.push(value);
            // The value is stored at length-1, but we add 1 to all indexes
            // and use 0 as a sentinel value
            set._indexes[value] = set._values.length;
            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function _remove(Set storage set, bytes32 value) private returns (bool) {
        // We read and store the value's index to prevent multiple reads from the same storage slot
        uint256 valueIndex = set._indexes[value];

        if (valueIndex != 0) { // Equivalent to contains(set, value)
            // To delete an element from the _values array in O(1), we swap the element to delete with the last one in
            // the array, and then remove the last element (sometimes called as 'swap and pop').
            // This modifies the order of the array, as noted in {at}.

            uint256 toDeleteIndex = valueIndex - 1;
            uint256 lastIndex = set._values.length - 1;

            // When the value to delete is the last one, the swap operation is unnecessary. However, since this occurs
            // so rarely, we still do the swap anyway to avoid the gas cost of adding an 'if' statement.

            bytes32 lastvalue = set._values[lastIndex];

            // Move the last value to the index where the value to delete is
            set._values[toDeleteIndex] = lastvalue;
            // Update the index for the moved value
            set._indexes[lastvalue] = toDeleteIndex + 1; // All indexes are 1-based

            // Delete the slot where the moved value was stored
            set._values.pop();

            // Delete the index for the deleted slot
            delete set._indexes[value];

            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function _contains(Set storage set, bytes32 value) private view returns (bool) {
        return set._indexes[value] != 0;
    }

    /**
     * @dev Returns the number of values on the set. O(1).
     */
    function _length(Set storage set) private view returns (uint256) {
        return set._values.length;
    }

   /**
    * @dev Returns the value stored at position `index` in the set. O(1).
    *
    * Note that there are no guarantees on the ordering of values inside the
    * array, and it may change when more values are added or removed.
    *
    * Requirements:
    *
    * - `index` must be strictly less than {length}.
    */
    function _at(Set storage set, uint256 index) private view returns (bytes32) {
        require(set._values.length > index, "EnumerableSet: index out of bounds");
        return set._values[index];
    }

    // Bytes32Set

    struct Bytes32Set {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(Bytes32Set storage set, bytes32 value) internal returns (bool) {
        return _add(set._inner, value);
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(Bytes32Set storage set, bytes32 value) internal returns (bool) {
        return _remove(set._inner, value);
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(Bytes32Set storage set, bytes32 value) internal view returns (bool) {
        return _contains(set._inner, value);
    }

    /**
     * @dev Returns the number of values in the set. O(1).
     */
    function length(Bytes32Set storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

   /**
    * @dev Returns the value stored at position `index` in the set. O(1).
    *
    * Note that there are no guarantees on the ordering of values inside the
    * array, and it may change when more values are added or removed.
    *
    * Requirements:
    *
    * - `index` must be strictly less than {length}.
    */
    function at(Bytes32Set storage set, uint256 index) internal view returns (bytes32) {
        return _at(set._inner, index);
    }

    // AddressSet

    struct AddressSet {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(AddressSet storage set, address value) internal returns (bool) {
        return _add(set._inner, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(AddressSet storage set, address value) internal returns (bool) {
        return _remove(set._inner, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(AddressSet storage set, address value) internal view returns (bool) {
        return _contains(set._inner, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Returns the number of values in the set. O(1).
     */
    function length(AddressSet storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

   /**
    * @dev Returns the value stored at position `index` in the set. O(1).
    *
    * Note that there are no guarantees on the ordering of values inside the
    * array, and it may change when more values are added or removed.
    *
    * Requirements:
    *
    * - `index` must be strictly less than {length}.
    */
    function at(AddressSet storage set, uint256 index) internal view returns (address) {
        return address(uint160(uint256(_at(set._inner, index))));
    }


    // UintSet

    struct UintSet {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(UintSet storage set, uint256 value) internal returns (bool) {
        return _add(set._inner, bytes32(value));
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(UintSet storage set, uint256 value) internal returns (bool) {
        return _remove(set._inner, bytes32(value));
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(UintSet storage set, uint256 value) internal view returns (bool) {
        return _contains(set._inner, bytes32(value));
    }

    /**
     * @dev Returns the number of values on the set. O(1).
     */
    function length(UintSet storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

   /**
    * @dev Returns the value stored at position `index` in the set. O(1).
    *
    * Note that there are no guarantees on the ordering of values inside the
    * array, and it may change when more values are added or removed.
    *
    * Requirements:
    *
    * - `index` must be strictly less than {length}.
    */
    function at(UintSet storage set, uint256 index) internal view returns (uint256) {
        return uint256(_at(set._inner, index));
    }
}

// File: @openzeppelin/contracts/utils/EnumerableMap.sol





/**
 * @dev Library for managing an enumerable variant of Solidity's
 * https://solidity.readthedocs.io/en/latest/types.html#mapping-types[`mapping`]
 * type.
 *
 * Maps have the following properties:
 *
 * - Entries are added, removed, and checked for existence in constant time
 * (O(1)).
 * - Entries are enumerated in O(n). No guarantees are made on the ordering.
 *
 * ```
 * contract Example {
 *     // Add the library methods
 *     using EnumerableMap for EnumerableMap.UintToAddressMap;
 *
 *     // Declare a set state variable
 *     EnumerableMap.UintToAddressMap private myMap;
 * }
 * ```
 *
 * As of v3.0.0, only maps of type `uint256 -> address` (`UintToAddressMap`) are
 * supported.
 */
library EnumerableMap {
    // To implement this library for multiple types with as little code
    // repetition as possible, we write it in terms of a generic Map type with
    // bytes32 keys and values.
    // The Map implementation uses private functions, and user-facing
    // implementations (such as Uint256ToAddressMap) are just wrappers around
    // the underlying Map.
    // This means that we can only create new EnumerableMaps for types that fit
    // in bytes32.

    struct MapEntry {
        bytes32 _key;
        bytes32 _value;
    }

    struct Map {
        // Storage of map keys and values
        MapEntry[] _entries;

        // Position of the entry defined by a key in the `entries` array, plus 1
        // because index 0 means a key is not in the map.
        mapping (bytes32 => uint256) _indexes;
    }

    /**
     * @dev Adds a key-value pair to a map, or updates the value for an existing
     * key. O(1).
     *
     * Returns true if the key was added to the map, that is if it was not
     * already present.
     */
    function _set(Map storage map, bytes32 key, bytes32 value) private returns (bool) {
        // We read and store the key's index to prevent multiple reads from the same storage slot
        uint256 keyIndex = map._indexes[key];

        if (keyIndex == 0) { // Equivalent to !contains(map, key)
            map._entries.push(MapEntry({ _key: key, _value: value }));
            // The entry is stored at length-1, but we add 1 to all indexes
            // and use 0 as a sentinel value
            map._indexes[key] = map._entries.length;
            return true;
        } else {
            map._entries[keyIndex - 1]._value = value;
            return false;
        }
    }

    /**
     * @dev Removes a key-value pair from a map. O(1).
     *
     * Returns true if the key was removed from the map, that is if it was present.
     */
    function _remove(Map storage map, bytes32 key) private returns (bool) {
        // We read and store the key's index to prevent multiple reads from the same storage slot
        uint256 keyIndex = map._indexes[key];

        if (keyIndex != 0) { // Equivalent to contains(map, key)
            // To delete a key-value pair from the _entries array in O(1), we swap the entry to delete with the last one
            // in the array, and then remove the last entry (sometimes called as 'swap and pop').
            // This modifies the order of the array, as noted in {at}.

            uint256 toDeleteIndex = keyIndex - 1;
            uint256 lastIndex = map._entries.length - 1;

            // When the entry to delete is the last one, the swap operation is unnecessary. However, since this occurs
            // so rarely, we still do the swap anyway to avoid the gas cost of adding an 'if' statement.

            MapEntry storage lastEntry = map._entries[lastIndex];

            // Move the last entry to the index where the entry to delete is
            map._entries[toDeleteIndex] = lastEntry;
            // Update the index for the moved entry
            map._indexes[lastEntry._key] = toDeleteIndex + 1; // All indexes are 1-based

            // Delete the slot where the moved entry was stored
            map._entries.pop();

            // Delete the index for the deleted slot
            delete map._indexes[key];

            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Returns true if the key is in the map. O(1).
     */
    function _contains(Map storage map, bytes32 key) private view returns (bool) {
        return map._indexes[key] != 0;
    }

    /**
     * @dev Returns the number of key-value pairs in the map. O(1).
     */
    function _length(Map storage map) private view returns (uint256) {
        return map._entries.length;
    }

   /**
    * @dev Returns the key-value pair stored at position `index` in the map. O(1).
    *
    * Note that there are no guarantees on the ordering of entries inside the
    * array, and it may change when more entries are added or removed.
    *
    * Requirements:
    *
    * - `index` must be strictly less than {length}.
    */
    function _at(Map storage map, uint256 index) private view returns (bytes32, bytes32) {
        require(map._entries.length > index, "EnumerableMap: index out of bounds");

        MapEntry storage entry = map._entries[index];
        return (entry._key, entry._value);
    }

    /**
     * @dev Tries to returns the value associated with `key`.  O(1).
     * Does not revert if `key` is not in the map.
     */
    function _tryGet(Map storage map, bytes32 key) private view returns (bool, bytes32) {
        uint256 keyIndex = map._indexes[key];
        if (keyIndex == 0) return (false, 0); // Equivalent to contains(map, key)
        return (true, map._entries[keyIndex - 1]._value); // All indexes are 1-based
    }

    /**
     * @dev Returns the value associated with `key`.  O(1).
     *
     * Requirements:
     *
     * - `key` must be in the map.
     */
    function _get(Map storage map, bytes32 key) private view returns (bytes32) {
        uint256 keyIndex = map._indexes[key];
        require(keyIndex != 0, "EnumerableMap: nonexistent key"); // Equivalent to contains(map, key)
        return map._entries[keyIndex - 1]._value; // All indexes are 1-based
    }

    /**
     * @dev Same as {_get}, with a custom error message when `key` is not in the map.
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {_tryGet}.
     */
    function _get(Map storage map, bytes32 key, string memory errorMessage) private view returns (bytes32) {
        uint256 keyIndex = map._indexes[key];
        require(keyIndex != 0, errorMessage); // Equivalent to contains(map, key)
        return map._entries[keyIndex - 1]._value; // All indexes are 1-based
    }

    // UintToAddressMap

    struct UintToAddressMap {
        Map _inner;
    }

    /**
     * @dev Adds a key-value pair to a map, or updates the value for an existing
     * key. O(1).
     *
     * Returns true if the key was added to the map, that is if it was not
     * already present.
     */
    function set(UintToAddressMap storage map, uint256 key, address value) internal returns (bool) {
        return _set(map._inner, bytes32(key), bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the key was removed from the map, that is if it was present.
     */
    function remove(UintToAddressMap storage map, uint256 key) internal returns (bool) {
        return _remove(map._inner, bytes32(key));
    }

    /**
     * @dev Returns true if the key is in the map. O(1).
     */
    function contains(UintToAddressMap storage map, uint256 key) internal view returns (bool) {
        return _contains(map._inner, bytes32(key));
    }

    /**
     * @dev Returns the number of elements in the map. O(1).
     */
    function length(UintToAddressMap storage map) internal view returns (uint256) {
        return _length(map._inner);
    }

   /**
    * @dev Returns the element stored at position `index` in the set. O(1).
    * Note that there are no guarantees on the ordering of values inside the
    * array, and it may change when more values are added or removed.
    *
    * Requirements:
    *
    * - `index` must be strictly less than {length}.
    */
    function at(UintToAddressMap storage map, uint256 index) internal view returns (uint256, address) {
        (bytes32 key, bytes32 value) = _at(map._inner, index);
        return (uint256(key), address(uint160(uint256(value))));
    }

    /**
     * @dev Tries to returns the value associated with `key`.  O(1).
     * Does not revert if `key` is not in the map.
     *
     * _Available since v3.4._
     */
    function tryGet(UintToAddressMap storage map, uint256 key) internal view returns (bool, address) {
        (bool success, bytes32 value) = _tryGet(map._inner, bytes32(key));
        return (success, address(uint160(uint256(value))));
    }

    /**
     * @dev Returns the value associated with `key`.  O(1).
     *
     * Requirements:
     *
     * - `key` must be in the map.
     */
    function get(UintToAddressMap storage map, uint256 key) internal view returns (address) {
        return address(uint160(uint256(_get(map._inner, bytes32(key)))));
    }

    /**
     * @dev Same as {get}, with a custom error message when `key` is not in the map.
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {tryGet}.
     */
    function get(UintToAddressMap storage map, uint256 key, string memory errorMessage) internal view returns (address) {
        return address(uint160(uint256(_get(map._inner, bytes32(key), errorMessage))));
    }
}

// File: @openzeppelin/contracts/utils/Strings.sol





/**
 * @dev String operations.
 */
library Strings {
    /**
     * @dev Converts a `uint256` to its ASCII `string` representation.
     */
    function toString(uint256 _i) 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 (_i == 0) {
            return "0";
        }
        uint j = _i;
        uint len;
        while (j != 0) {
            len++;
            j /= 10;
        }
        bytes memory bstr = new bytes(len);
        uint k = len;
        while (_i != 0) {
            k = k-1;
            uint8 temp = (48 + uint8(_i - _i / 10 * 10));
            bytes1 b1 = bytes1(temp);
            bstr[k] = b1;
            _i /= 10;
        }
        return string(bstr);
    }
}

// File: @openzeppelin/contracts/token/ERC721/ERC721.sol
















/**
 * @title ERC721 Non-Fungible Token Standard basic implementation
 * @dev see https://eips.ethereum.org/EIPS/eip-721
 */
contract ERC721 is Context, ERC165, IERC721, IERC721Metadata, IERC721Enumerable {
    using SafeMath for uint256;
    using Address for address;
    using EnumerableSet for EnumerableSet.UintSet;
    using EnumerableMap for EnumerableMap.UintToAddressMap;
    using Strings for uint256;

    // Equals to `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))`
    // which can be also obtained as `IERC721Receiver(0).onERC721Received.selector`
    bytes4 private constant _ERC721_RECEIVED = 0x150b7a02;

    // Mapping from holder address to their (enumerable) set of owned tokens
    mapping (address => EnumerableSet.UintSet) private _holderTokens;

    // Enumerable mapping from token ids to their owners
    EnumerableMap.UintToAddressMap private _tokenOwners;

    // 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;

    // Token name
    string private _name;

    // Token symbol
    string private _symbol;

    // Optional mapping for token URIs
    mapping (uint256 => string) private _tokenURIs;

    // Base URI
    string private _baseURI;

    /*
     *     bytes4(keccak256('balanceOf(address)')) == 0x70a08231
     *     bytes4(keccak256('ownerOf(uint256)')) == 0x6352211e
     *     bytes4(keccak256('approve(address,uint256)')) == 0x095ea7b3
     *     bytes4(keccak256('getApproved(uint256)')) == 0x081812fc
     *     bytes4(keccak256('setApprovalForAll(address,bool)')) == 0xa22cb465
     *     bytes4(keccak256('isApprovedForAll(address,address)')) == 0xe985e9c5
     *     bytes4(keccak256('transferFrom(address,address,uint256)')) == 0x23b872dd
     *     bytes4(keccak256('safeTransferFrom(address,address,uint256)')) == 0x42842e0e
     *     bytes4(keccak256('safeTransferFrom(address,address,uint256,bytes)')) == 0xb88d4fde
     *
     *     => 0x70a08231 ^ 0x6352211e ^ 0x095ea7b3 ^ 0x081812fc ^
     *        0xa22cb465 ^ 0xe985e9c5 ^ 0x23b872dd ^ 0x42842e0e ^ 0xb88d4fde == 0x80ac58cd
     */
    bytes4 private constant _INTERFACE_ID_ERC721 = 0x80ac58cd;

    /*
     *     bytes4(keccak256('name()')) == 0x06fdde03
     *     bytes4(keccak256('symbol()')) == 0x95d89b41
     *     bytes4(keccak256('tokenURI(uint256)')) == 0xc87b56dd
     *
     *     => 0x06fdde03 ^ 0x95d89b41 ^ 0xc87b56dd == 0x5b5e139f
     */
    bytes4 private constant _INTERFACE_ID_ERC721_METADATA = 0x5b5e139f;

    /*
     *     bytes4(keccak256('totalSupply()')) == 0x18160ddd
     *     bytes4(keccak256('tokenOfOwnerByIndex(address,uint256)')) == 0x2f745c59
     *     bytes4(keccak256('tokenByIndex(uint256)')) == 0x4f6ccce7
     *
     *     => 0x18160ddd ^ 0x2f745c59 ^ 0x4f6ccce7 == 0x780e9d63
     */
    bytes4 private constant _INTERFACE_ID_ERC721_ENUMERABLE = 0x780e9d63;

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

        // register the supported interfaces to conform to ERC721 via ERC165
        _registerInterface(_INTERFACE_ID_ERC721);
        _registerInterface(_INTERFACE_ID_ERC721_METADATA);
        _registerInterface(_INTERFACE_ID_ERC721_ENUMERABLE);
    }

    /**
     * @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 _holderTokens[owner].length();
    }

    /**
     * @dev See {IERC721-ownerOf}.
     */
    function ownerOf(uint256 tokenId) public view virtual override returns (address) {
        return _tokenOwners.get(tokenId, "ERC721: owner query for nonexistent token");
    }

    /**
     * @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 _tokenURI = _tokenURIs[tokenId];
        string memory base = baseURI();

        // If there is no base URI, return the token URI.
        if (bytes(base).length == 0) {
            return _tokenURI;
        }
        // If both are set, concatenate the baseURI and tokenURI (via abi.encodePacked).
        if (bytes(_tokenURI).length > 0) {
            return string(abi.encodePacked(base, _tokenURI));
        }
        // If there is a baseURI but no tokenURI, concatenate the tokenID to the baseURI.
        return string(abi.encodePacked(base, tokenId.toString()));
    }

    /**
    * @dev Returns the base URI set via {_setBaseURI}. This will be
    * automatically added as a prefix in {tokenURI} to each token's URI, or
    * to the token ID if no specific URI is set for that token ID.
    */
    function baseURI() public view virtual returns (string memory) {
        return _baseURI;
    }

    /**
     * @dev See {IERC721Enumerable-tokenOfOwnerByIndex}.
     */
    function tokenOfOwnerByIndex(address owner, uint256 index) public view virtual override returns (uint256) {
        return _holderTokens[owner].at(index);
    }

    /**
     * @dev See {IERC721Enumerable-totalSupply}.
     */
    function totalSupply() public view virtual override returns (uint256) {
        // _tokenOwners are indexed by tokenIds, so .length() returns the number of tokenIds
        return _tokenOwners.length();
    }

    /**
     * @dev See {IERC721Enumerable-tokenByIndex}.
     */
    function tokenByIndex(uint256 index) public view virtual override returns (uint256) {
        (uint256 tokenId, ) = _tokenOwners.at(index);
        return tokenId;
    }

    /**
     * @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 || ERC721.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 {
        require(operator != _msgSender(), "ERC721: approve to caller");

        _operatorApprovals[_msgSender()][operator] = approved;
        emit ApprovalForAll(_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 _tokenOwners.contains(tokenId);
    }

    /**
     * @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 || ERC721.isApprovedForAll(owner, spender));
    }

    /**
     * @dev Safely mints `tokenId` and transfers it to `to`.
     *
     * Requirements:
     d*
     * - `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);

        _holderTokens[to].add(tokenId);

        _tokenOwners.set(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); // internal owner

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

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

        // Clear metadata (if any)
        if (bytes(_tokenURIs[tokenId]).length != 0) {
            delete _tokenURIs[tokenId];
        }

        _holderTokens[owner].remove(tokenId);

        _tokenOwners.remove(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"); // internal owner
        require(to != address(0), "ERC721: transfer to the zero address");

        _beforeTokenTransfer(from, to, tokenId);

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

        _holderTokens[from].remove(tokenId);
        _holderTokens[to].add(tokenId);

        _tokenOwners.set(tokenId, to);

        emit Transfer(from, to, tokenId);
    }

    /**
     * @dev Sets `_tokenURI` as the tokenURI of `tokenId`.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function _setTokenURI(uint256 tokenId, string memory _tokenURI) internal virtual {
        require(_exists(tokenId), "ERC721Metadata: URI set of nonexistent token");
        _tokenURIs[tokenId] = _tokenURI;
    }

    /**
     * @dev Internal function to set the base URI for all token IDs. It is
     * automatically added as a prefix to the value returned in {tokenURI},
     * or to the token ID if {tokenURI} is empty.
     */
    function _setBaseURI(string memory baseURI_) internal virtual {
        _baseURI = baseURI_;
    }

    /**
     * @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()) {
            return true;
        }
        bytes memory returndata = to.functionCall(abi.encodeWithSelector(
            IERC721Receiver(to).onERC721Received.selector,
            _msgSender(),
            from,
            tokenId,
            _data
        ), "ERC721: transfer to non ERC721Receiver implementer");
        bytes4 retval = abi.decode(returndata, (bytes4));
        return (retval == _ERC721_RECEIVED);
    }

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

    /**
     * @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` cannot be the zero address.
     * - `to` cannot be the zero address.
     *
     * 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 { }
}

// File: @openzeppelin/contracts/access/Ownable.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 () internal {
        address msgSender = _msgSender();
        _owner = msgSender;
        emit OwnershipTransferred(address(0), 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 {
        emit OwnershipTransferred(_owner, address(0));
        _owner = 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");
        emit OwnershipTransferred(_owner, newOwner);
        _owner = newOwner;
    }
}

interface IBEP20 {
    function balanceOf(address account) external view returns (uint256);
    function transfer(address recipient, uint256 amount) external returns (bool);
    function transferFrom(
        address sender,
        address recipient,
        uint256 amount
    ) external returns (bool);
}

contract MadMeerkatBurrow is ERC721, Ownable, ReentrancyGuard {
    using SafeMath for uint256;
    uint256 public constant MAX_MEERKAT_PURCHASE = 20; // max purchase per txn
    uint256 public constant MAX_MEERKAT = 5000; // max of 5,000 meerkats

    string public MMB_PROVENANCE = "";
    uint public meerkatPrice = 5 ether / 100;
    uint public reservedMeerkats = 400;

    bool public saleIsActive = false; // determines whether sales is active
    bool public presale1Active = false; // determines whether presale 1 is active
    bool public presale2Active = false; // determines whether presale 2 is active
    uint public maxPurchasePresale1 = 5;
    uint public maxPurchasePresale2 = 3;

    mapping(address => bool) public whitelist1;
    mapping(address => bool) public whitelist2;
    mapping(address => uint) public presaleMints1;
    mapping(address => uint) public presaleMints2;

    event AssetMinted(address account, uint256 tokenId);

    constructor() ERC721("MadMeerkatBurrow", "MMB") {}

    /* ========== Public views ========== */

    function isWhitelistedPresale1(address addr) public view returns (bool) {
        return whitelist1[addr];
    }

    function isWhitelistedPresale2(address addr) public view returns (bool) {
        return whitelist2[addr];
    }

    /* ========== External public sales functions ========== */

    // @dev mints meerkat for the general public
    function mintMeerkat(uint numberOfTokens) external payable nonReentrant {
        require(saleIsActive); // Sale must be active
        require(numberOfTokens <= MAX_MEERKAT_PURCHASE); // Max mint of 20
        require(totalSupply().add(numberOfTokens) <= MAX_MEERKAT.sub(reservedMeerkats)); // Max supply exceeded
        require(meerkatPrice.mul(numberOfTokens) <= msg.value); // Value sent is not correct

        for (uint i = 0; i < numberOfTokens; i++) {
            if (totalSupply() < MAX_MEERKAT) {
                emit AssetMinted(msg.sender, totalSupply() + 1);

                _mint(msg.sender, totalSupply() + 1);
            }
        }
    }

    function presaleMintMeerkat1(uint256 numberOfTokens) public payable nonReentrant {
        require(presale1Active);
        require(numberOfTokens <= maxPurchasePresale1); // max of 5 can be bought at one time during presale
        require(isWhitelistedPresale1(msg.sender));
        require(numberOfTokens.mul(meerkatPrice) <= msg.value);
        require(presaleMints1[msg.sender] + numberOfTokens <= maxPurchasePresale1); // each user can only get 5 items in presale max
        require(totalSupply().add(numberOfTokens) <= MAX_MEERKAT.sub(reservedMeerkats)); // Max supply exceeded

        for (uint256 i = 0; i < numberOfTokens; i++) {
            presaleMints1[msg.sender] += 1;
            emit AssetMinted(msg.sender, totalSupply() + 1);

            _mint(msg.sender, totalSupply() + 1);
        }
    }

    function presaleMintMeerkat2(uint256 numberOfTokens) public payable nonReentrant {
        require(presale2Active);
        require(numberOfTokens <= maxPurchasePresale2); // max of 3 can be bought at one time during presale
        require(isWhitelistedPresale2(msg.sender));
        require(numberOfTokens.mul(meerkatPrice) <= msg.value);
        require(presaleMints2[msg.sender] + numberOfTokens <= maxPurchasePresale2); // each user can only get 3 items in presale max
        require(totalSupply().add(numberOfTokens) <= MAX_MEERKAT.sub(reservedMeerkats)); // Max supply exceeded

        for (uint256 i = 0; i < numberOfTokens; i++) {
            presaleMints2[msg.sender] += 1;
            emit AssetMinted(msg.sender, totalSupply() + 1);

            _mint(msg.sender, totalSupply() + 1);
        }
    }

    /* ========== External owner functions ========== */

    // @dev add user to whitelist for presale
    function addToWhitelist1(address[] memory addrs) public onlyOwner {
        for (uint256 i = 0; i < addrs.length; i++) {
            whitelist1[addrs[i]] = true;
            presaleMints1[addrs[i]] = 0;
        }
    }

    function addToWhitelist2(address[] memory addrs) public onlyOwner {
        for (uint256 i = 0; i < addrs.length; i++) {
            whitelist2[addrs[i]] = true;
            presaleMints2[addrs[i]] = 0;
        }
    }
    
    function setMaxPurchasePresale1(uint256 max) public onlyOwner {
        maxPurchasePresale1 = max;
    }

    function setMaxPurchasePresale2(uint256 max) public onlyOwner {
        maxPurchasePresale2 = max;
    }

    // @dev mints meerkat as giveaways
    function giveAway(address to, uint numberOfTokens) external nonReentrant onlyOwner {
        require(numberOfTokens <= reservedMeerkats); // Max supply exceeded

        for (uint i = 0; i < numberOfTokens; i++) {
            if (totalSupply() < MAX_MEERKAT) {
                emit AssetMinted(to, totalSupply() + 1);

                _mint(to, totalSupply() + 1);
            }
        }

        reservedMeerkats = reservedMeerkats.sub(numberOfTokens);
    }
    
    // @dev sets base URI
    function setBaseURI(string memory baseURI) external onlyOwner {
        _setBaseURI(baseURI);
    }

    // @dev withdraw funds
    function withdraw() external onlyOwner {
        uint balance = address(this).balance;
        payable(msg.sender).transfer(balance);
    }

    // @dev withdraw funds
    function withdrawBEP20(address token) external onlyOwner {
        uint balance = IBEP20(token).balanceOf(address(this));
        IBEP20(token).transfer(msg.sender, balance);
    }

    // @dev flips the state for sales
    function flipSaleState() external onlyOwner {
        saleIsActive = !saleIsActive;
    }

    // @dev flips the state for presale 1
    function flipPreSale1State() public onlyOwner {
        presale1Active = !presale1Active;
    }
    
    // @dev flips the state for presale 2
    function flipPreSale2State() public onlyOwner {
        presale2Active = !presale2Active;
    }

    // @dev sets price of meerkat
    function setMeerkatPrice(uint256 _price) external onlyOwner {
        meerkatPrice = _price;
    }
    
    // @dev set provenance once it's calculated
    function setProvenanceHash(string memory provenanceHash) public onlyOwner {
        MMB_PROVENANCE = provenanceHash;
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @dev Contract module that helps prevent reentrant calls to a function.
 *
 * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
 * available, which can be applied to functions to make sure there are no nested
 * (reentrant) calls to them.
 *
 * Note that because there is a single `nonReentrant` guard, functions marked as
 * `nonReentrant` may not call one another. This can be worked around by making
 * those functions `private`, and then adding `external` `nonReentrant` entry
 * points to them.
 *
 * TIP: If you would like to learn more about reentrancy and alternative ways
 * to protect against it, check out our blog post
 * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
 */
abstract contract ReentrancyGuard {
    // Booleans are more expensive than uint256 or any type that takes up a full
    // word because each write operation emits an extra SLOAD to first read the
    // slot's contents, replace the bits taken up by the boolean, and then write
    // back. This is the compiler's defense against contract upgrades and
    // pointer aliasing, and it cannot be disabled.

    // The values being non-zero value makes deployment a bit more expensive,
    // but in exchange the refund on every call to nonReentrant will be lower in
    // amount. Since refunds are capped to a percentage of the total
    // transaction's gas, it is best to keep them low in cases like this one, to
    // increase the likelihood of the full refund coming into effect.
    uint256 private constant _NOT_ENTERED = 1;
    uint256 private constant _ENTERED = 2;

    uint256 private _status;

    constructor() {
        _status = _NOT_ENTERED;
    }

    /**
     * @dev Prevents a contract from calling itself, directly or indirectly.
     * Calling a `nonReentrant` function from another `nonReentrant`
     * function is not supported. It is possible to prevent this from happening
     * by making the `nonReentrant` function external, and make it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        // On the first call to nonReentrant, _notEntered will be true
        require(_status != _ENTERED, "ReentrancyGuard: reentrant call");

        // Any calls to nonReentrant after this point will fail
        _status = _ENTERED;

        _;

        // By storing the original value once again, a refund is triggered (see
        // https://eips.ethereum.org/EIPS/eip-2200)
        _status = _NOT_ENTERED;
    }
}

{
  "optimizer": {
    "enabled": true,
    "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":false,"internalType":"address","name":"account","type":"address"},{"indexed":false,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"AssetMinted","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":[],"name":"MAX_MEERKAT","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"MAX_MEERKAT_PURCHASE","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"MMB_PROVENANCE","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address[]","name":"addrs","type":"address[]"}],"name":"addToWhitelist1","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address[]","name":"addrs","type":"address[]"}],"name":"addToWhitelist2","outputs":[],"stateMutability":"nonpayable","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":[],"name":"baseURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"flipPreSale1State","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"flipPreSale2State","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"flipSaleState","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":"address","name":"to","type":"address"},{"internalType":"uint256","name":"numberOfTokens","type":"uint256"}],"name":"giveAway","outputs":[],"stateMutability":"nonpayable","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":[{"internalType":"address","name":"addr","type":"address"}],"name":"isWhitelistedPresale1","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"addr","type":"address"}],"name":"isWhitelistedPresale2","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"maxPurchasePresale1","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"maxPurchasePresale2","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"meerkatPrice","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"numberOfTokens","type":"uint256"}],"name":"mintMeerkat","outputs":[],"stateMutability":"payable","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":"presale1Active","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"presale2Active","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"numberOfTokens","type":"uint256"}],"name":"presaleMintMeerkat1","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"numberOfTokens","type":"uint256"}],"name":"presaleMintMeerkat2","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"presaleMints1","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"presaleMints2","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"reservedMeerkats","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":"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":[],"name":"saleIsActive","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","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":"baseURI","type":"string"}],"name":"setBaseURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"max","type":"uint256"}],"name":"setMaxPurchasePresale1","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"max","type":"uint256"}],"name":"setMaxPurchasePresale2","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_price","type":"uint256"}],"name":"setMeerkatPrice","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"provenanceHash","type":"string"}],"name":"setProvenanceHash","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":"index","type":"uint256"}],"name":"tokenByIndex","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"uint256","name":"index","type":"uint256"}],"name":"tokenOfOwnerByIndex","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","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"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"whitelist1","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"whitelist2","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"}],"name":"withdrawBEP20","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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