Token

Contract Source Code (Solidity Standard Json-Input format)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (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 Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        _checkOwner();
        _;
    }

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

    /**
     * @dev Throws if the sender is not the owner.
     */
    function _checkOwner() internal view virtual {
        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 (last updated v4.8.0) (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: address zero is not a valid owner");
        return _balances[owner];
    }

    /**
     * @dev See {IERC721-ownerOf}.
     */
    function ownerOf(uint256 tokenId) public view virtual override returns (address) {
        address owner = _ownerOf(tokenId);
        require(owner != address(0), "ERC721: invalid token ID");
        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) {
        _requireMinted(tokenId);

        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 overridden 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 token owner or approved for all"
        );

        _approve(to, tokenId);
    }

    /**
     * @dev See {IERC721-getApproved}.
     */
    function getApproved(uint256 tokenId) public view virtual override returns (address) {
        _requireMinted(tokenId);

        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: caller is not token owner or 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: caller is not token owner or 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 the owner of the `tokenId`. Does NOT revert if token doesn't exist
     */
    function _ownerOf(uint256 tokenId) internal view virtual returns (address) {
        return _owners[tokenId];
    }

    /**
     * @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 _ownerOf(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) {
        address owner = ERC721.ownerOf(tokenId);
        return (spender == owner || isApprovedForAll(owner, spender) || getApproved(tokenId) == 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, 1);

        // Check that tokenId was not minted by `_beforeTokenTransfer` hook
        require(!_exists(tokenId), "ERC721: token already minted");

        unchecked {
            // Will not overflow unless all 2**256 token ids are minted to the same owner.
            // Given that tokens are minted one by one, it is impossible in practice that
            // this ever happens. Might change if we allow batch minting.
            // The ERC fails to describe this case.
            _balances[to] += 1;
        }

        _owners[tokenId] = to;

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

        _afterTokenTransfer(address(0), to, tokenId, 1);
    }

    /**
     * @dev Destroys `tokenId`.
     * The approval is cleared when the token is burned.
     * This is an internal function that does not check if the sender is authorized to operate on the token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     *
     * Emits a {Transfer} event.
     */
    function _burn(uint256 tokenId) internal virtual {
        address owner = ERC721.ownerOf(tokenId);

        _beforeTokenTransfer(owner, address(0), tokenId, 1);

        // Update ownership in case tokenId was transferred by `_beforeTokenTransfer` hook
        owner = ERC721.ownerOf(tokenId);

        // Clear approvals
        delete _tokenApprovals[tokenId];

        unchecked {
            // Cannot overflow, as that would require more tokens to be burned/transferred
            // out than the owner initially received through minting and transferring in.
            _balances[owner] -= 1;
        }
        delete _owners[tokenId];

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

        _afterTokenTransfer(owner, address(0), tokenId, 1);
    }

    /**
     * @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 from incorrect owner");
        require(to != address(0), "ERC721: transfer to the zero address");

        _beforeTokenTransfer(from, to, tokenId, 1);

        // Check that tokenId was not transferred by `_beforeTokenTransfer` hook
        require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner");

        // Clear approvals from the previous owner
        delete _tokenApprovals[tokenId];

        unchecked {
            // `_balances[from]` cannot overflow for the same reason as described in `_burn`:
            // `from`'s balance is the number of token held, which is at least one before the current
            // transfer.
            // `_balances[to]` could overflow in the conditions described in `_mint`. That would require
            // all 2**256 token ids to be minted, which in practice is impossible.
            _balances[from] -= 1;
            _balances[to] += 1;
        }
        _owners[tokenId] = to;

        emit Transfer(from, to, tokenId);

        _afterTokenTransfer(from, to, tokenId, 1);
    }

    /**
     * @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);
    }

    /**
     * @dev Approve `operator` to operate on all of `owner` tokens
     *
     * Emits an {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 Reverts if the `tokenId` has not been minted yet.
     */
    function _requireMinted(uint256 tokenId) internal view virtual {
        require(_exists(tokenId), "ERC721: invalid token ID");
    }

    /**
     * @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 {
                    /// @solidity memory-safe-assembly
                    assembly {
                        revert(add(32, reason), mload(reason))
                    }
                }
            }
        } else {
            return true;
        }
    }

    /**
     * @dev Hook that is called before any token transfer. This includes minting and burning. If {ERC721Consecutive} is
     * used, the hook may be called as part of a consecutive (batch) mint, as indicated by `batchSize` greater than 1.
     *
     * Calling conditions:
     *
     * - When `from` and `to` are both non-zero, ``from``'s tokens will be transferred to `to`.
     * - When `from` is zero, the tokens will be minted for `to`.
     * - When `to` is zero, ``from``'s tokens will be burned.
     * - `from` and `to` are never both zero.
     * - `batchSize` is non-zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _beforeTokenTransfer(
        address from,
        address to,
        uint256, /* firstTokenId */
        uint256 batchSize
    ) internal virtual {
        if (batchSize > 1) {
            if (from != address(0)) {
                _balances[from] -= batchSize;
            }
            if (to != address(0)) {
                _balances[to] += batchSize;
            }
        }
    }

    /**
     * @dev Hook that is called after any token transfer. This includes minting and burning. If {ERC721Consecutive} is
     * used, the hook may be called as part of a consecutive (batch) mint, as indicated by `batchSize` greater than 1.
     *
     * Calling conditions:
     *
     * - When `from` and `to` are both non-zero, ``from``'s tokens were transferred to `to`.
     * - When `from` is zero, the tokens were minted for `to`.
     * - When `to` is zero, ``from``'s tokens were burned.
     * - `from` and `to` are never both zero.
     * - `batchSize` is non-zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _afterTokenTransfer(
        address from,
        address to,
        uint256 firstTokenId,
        uint256 batchSize
    ) internal virtual {}
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (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 (last updated v4.8.0) (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`.
     *
     * 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;

    /**
     * @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 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: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC721
     * or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must
     * understand this adds an external call which potentially creates a reentrancy vulnerability.
     *
     * 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 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 the account approved for `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function getApproved(uint256 tokenId) external view returns (address operator);

    /**
     * @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);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (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 `IERC721Receiver.onERC721Received.selector`.
     */
    function onERC721Received(
        address operator,
        address from,
        uint256 tokenId,
        bytes calldata data
    ) external returns (bytes4);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/Address.sol)

pragma solidity ^0.8.1;

/**
 * @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
     * ====
     *
     * [IMPORTANT]
     * ====
     * You shouldn't rely on `isContract` to protect against flash loan attacks!
     *
     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
     * constructor.
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize/address.code.length, which returns 0
        // for contracts in construction, since the code is only stored at the end
        // of the constructor execution.

        return account.code.length > 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 functionCallWithValue(target, data, 0, "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");
        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResultFromTarget(target, 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) {
        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResultFromTarget(target, 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) {
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
     * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
     *
     * _Available since v4.8._
     */
    function verifyCallResultFromTarget(
        address target,
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        if (success) {
            if (returndata.length == 0) {
                // only check isContract if the call was successful and the return data is empty
                // otherwise we already know that it was a contract
                require(isContract(target), "Address: call to non-contract");
            }
            return returndata;
        } else {
            _revert(returndata, errorMessage);
        }
    }

    /**
     * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason or 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 {
            _revert(returndata, errorMessage);
        }
    }

    function _revert(bytes memory returndata, string memory errorMessage) private pure {
        // 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
            /// @solidity memory-safe-assembly
            assembly {
                let returndata_size := mload(returndata)
                revert(add(32, returndata), returndata_size)
            }
        } else {
            revert(errorMessage);
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (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 v4.4.1 (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 v4.4.1 (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);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/math/Math.sol)

pragma solidity ^0.8.0;

/**
 * @dev Standard math utilities missing in the Solidity language.
 */
library Math {
    enum Rounding {
        Down, // Toward negative infinity
        Up, // Toward infinity
        Zero // Toward zero
    }

    /**
     * @dev Returns the largest of two numbers.
     */
    function max(uint256 a, uint256 b) internal pure returns (uint256) {
        return a > b ? a : b;
    }

    /**
     * @dev Returns the smallest of two numbers.
     */
    function min(uint256 a, uint256 b) internal pure returns (uint256) {
        return a < b ? a : b;
    }

    /**
     * @dev Returns the average of two numbers. The result is rounded towards
     * zero.
     */
    function average(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b) / 2 can overflow.
        return (a & b) + (a ^ b) / 2;
    }

    /**
     * @dev Returns the ceiling of the division of two numbers.
     *
     * This differs from standard division with `/` in that it rounds up instead
     * of rounding down.
     */
    function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b - 1) / b can overflow on addition, so we distribute.
        return a == 0 ? 0 : (a - 1) / b + 1;
    }

    /**
     * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0
     * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv)
     * with further edits by Uniswap Labs also under MIT license.
     */
    function mulDiv(
        uint256 x,
        uint256 y,
        uint256 denominator
    ) internal pure returns (uint256 result) {
        unchecked {
            // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use
            // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256
            // variables such that product = prod1 * 2^256 + prod0.
            uint256 prod0; // Least significant 256 bits of the product
            uint256 prod1; // Most significant 256 bits of the product
            assembly {
                let mm := mulmod(x, y, not(0))
                prod0 := mul(x, y)
                prod1 := sub(sub(mm, prod0), lt(mm, prod0))
            }

            // Handle non-overflow cases, 256 by 256 division.
            if (prod1 == 0) {
                return prod0 / denominator;
            }

            // Make sure the result is less than 2^256. Also prevents denominator == 0.
            require(denominator > prod1);

            ///////////////////////////////////////////////
            // 512 by 256 division.
            ///////////////////////////////////////////////

            // Make division exact by subtracting the remainder from [prod1 prod0].
            uint256 remainder;
            assembly {
                // Compute remainder using mulmod.
                remainder := mulmod(x, y, denominator)

                // Subtract 256 bit number from 512 bit number.
                prod1 := sub(prod1, gt(remainder, prod0))
                prod0 := sub(prod0, remainder)
            }

            // Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1.
            // See https://cs.stackexchange.com/q/138556/92363.

            // Does not overflow because the denominator cannot be zero at this stage in the function.
            uint256 twos = denominator & (~denominator + 1);
            assembly {
                // Divide denominator by twos.
                denominator := div(denominator, twos)

                // Divide [prod1 prod0] by twos.
                prod0 := div(prod0, twos)

                // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.
                twos := add(div(sub(0, twos), twos), 1)
            }

            // Shift in bits from prod1 into prod0.
            prod0 |= prod1 * twos;

            // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such
            // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for
            // four bits. That is, denominator * inv = 1 mod 2^4.
            uint256 inverse = (3 * denominator) ^ 2;

            // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works
            // in modular arithmetic, doubling the correct bits in each step.
            inverse *= 2 - denominator * inverse; // inverse mod 2^8
            inverse *= 2 - denominator * inverse; // inverse mod 2^16
            inverse *= 2 - denominator * inverse; // inverse mod 2^32
            inverse *= 2 - denominator * inverse; // inverse mod 2^64
            inverse *= 2 - denominator * inverse; // inverse mod 2^128
            inverse *= 2 - denominator * inverse; // inverse mod 2^256

            // Because the division is now exact we can divide by multiplying with the modular inverse of denominator.
            // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is
            // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1
            // is no longer required.
            result = prod0 * inverse;
            return result;
        }
    }

    /**
     * @notice Calculates x * y / denominator with full precision, following the selected rounding direction.
     */
    function mulDiv(
        uint256 x,
        uint256 y,
        uint256 denominator,
        Rounding rounding
    ) internal pure returns (uint256) {
        uint256 result = mulDiv(x, y, denominator);
        if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) {
            result += 1;
        }
        return result;
    }

    /**
     * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down.
     *
     * Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11).
     */
    function sqrt(uint256 a) internal pure returns (uint256) {
        if (a == 0) {
            return 0;
        }

        // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.
        //
        // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have
        // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.
        //
        // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`
        // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`
        // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`
        //
        // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.
        uint256 result = 1 << (log2(a) >> 1);

        // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,
        // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at
        // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision
        // into the expected uint128 result.
        unchecked {
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            return min(result, a / result);
        }
    }

    /**
     * @notice Calculates sqrt(a), following the selected rounding direction.
     */
    function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = sqrt(a);
            return result + (rounding == Rounding.Up && result * result < a ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 2, rounded down, of a positive value.
     * Returns 0 if given 0.
     */
    function log2(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >> 128 > 0) {
                value >>= 128;
                result += 128;
            }
            if (value >> 64 > 0) {
                value >>= 64;
                result += 64;
            }
            if (value >> 32 > 0) {
                value >>= 32;
                result += 32;
            }
            if (value >> 16 > 0) {
                value >>= 16;
                result += 16;
            }
            if (value >> 8 > 0) {
                value >>= 8;
                result += 8;
            }
            if (value >> 4 > 0) {
                value >>= 4;
                result += 4;
            }
            if (value >> 2 > 0) {
                value >>= 2;
                result += 2;
            }
            if (value >> 1 > 0) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 2, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log2(value);
            return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 10, rounded down, of a positive value.
     * Returns 0 if given 0.
     */
    function log10(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >= 10**64) {
                value /= 10**64;
                result += 64;
            }
            if (value >= 10**32) {
                value /= 10**32;
                result += 32;
            }
            if (value >= 10**16) {
                value /= 10**16;
                result += 16;
            }
            if (value >= 10**8) {
                value /= 10**8;
                result += 8;
            }
            if (value >= 10**4) {
                value /= 10**4;
                result += 4;
            }
            if (value >= 10**2) {
                value /= 10**2;
                result += 2;
            }
            if (value >= 10**1) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 10, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log10(value);
            return result + (rounding == Rounding.Up && 10**result < value ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 256, rounded down, of a positive value.
     * Returns 0 if given 0.
     *
     * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.
     */
    function log256(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >> 128 > 0) {
                value >>= 128;
                result += 16;
            }
            if (value >> 64 > 0) {
                value >>= 64;
                result += 8;
            }
            if (value >> 32 > 0) {
                value >>= 32;
                result += 4;
            }
            if (value >> 16 > 0) {
                value >>= 16;
                result += 2;
            }
            if (value >> 8 > 0) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 10, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log256(value);
            return result + (rounding == Rounding.Up && 1 << (result * 8) < value ? 1 : 0);
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/Strings.sol)

pragma solidity ^0.8.0;

import "./math/Math.sol";

/**
 * @dev String operations.
 */
library Strings {
    bytes16 private constant _SYMBOLS = "0123456789abcdef";
    uint8 private constant _ADDRESS_LENGTH = 20;

    /**
     * @dev Converts a `uint256` to its ASCII `string` decimal representation.
     */
    function toString(uint256 value) internal pure returns (string memory) {
        unchecked {
            uint256 length = Math.log10(value) + 1;
            string memory buffer = new string(length);
            uint256 ptr;
            /// @solidity memory-safe-assembly
            assembly {
                ptr := add(buffer, add(32, length))
            }
            while (true) {
                ptr--;
                /// @solidity memory-safe-assembly
                assembly {
                    mstore8(ptr, byte(mod(value, 10), _SYMBOLS))
                }
                value /= 10;
                if (value == 0) break;
            }
            return buffer;
        }
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
     */
    function toHexString(uint256 value) internal pure returns (string memory) {
        unchecked {
            return toHexString(value, Math.log256(value) + 1);
        }
    }

    /**
     * @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] = _SYMBOLS[value & 0xf];
            value >>= 4;
        }
        require(value == 0, "Strings: hex length insufficient");
        return string(buffer);
    }

    /**
     * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.
     */
    function toHexString(address addr) internal pure returns (string memory) {
        return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "@openzeppelin/contracts/token/ERC721/ERC721.sol";
import "@openzeppelin/contracts/utils/Strings.sol";
import "@openzeppelin/contracts/access/Ownable.sol";

/**
 * @title The WrappedPresent contract
 * @notice A contract that represents a random gift in the Santa.fm Gift Exchange
 */
contract WrappedPresent is Ownable, ERC721 {
    using Strings for string;

    // Table used for encoding the metadata in base64
    string internal constant TABLE =
        "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";

    // Designated Minter Role
    address minter;
    // URL for the image returned in the token's metadata
    string internal tokenImage;
    // Counter for tokens minted
    uint256 public totalTokensMinted;
    // Counter for tokens burned
    uint256 public totalTokensBurned;

    // Mapping of burned tokens by address
    mapping(address => uint256[]) public burnedBy;
    // Mapping of of whether or not a token has been burned
    mapping(uint256 => bool) public burned;

    // Error for when an account doesn't own a token when burning
    error OnlyOwnerCanBurnThroughMinter();
    // Event for burning tokens
    event Burn(uint256 tokenId, address account);

    constructor(
        string memory _name,
        string memory _symbol,
        string memory _tokenImage
    ) Ownable() ERC721(_name, _symbol) {
        tokenImage = _tokenImage;
    }

    /*
     * Owner Functions
     */

    /**
     * @notice Function that sets the image to be returned in Token URI
     * @param _tokenImage - The tokenId we're checking
     */
    function setTokenImage(string memory _tokenImage) public onlyOwner {
        tokenImage = _tokenImage;
    }

    /**
     * @notice Function that updates the designated minter
     * @param _minter - The address of the new minter
     */
    function setMinter(address _minter) public onlyOwner {
        minter = _minter;
    }

    /**
     * @notice Function that transfers a tokenId
     * @param from - The sender of the transfer
     * @param to - The receiver of the transfer
     * @param tokenId - TokenID of the token being transferred
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId
    ) public override {
        safeTransferFrom(from, to, tokenId, "");
    }

    /*
     * Minter Functions
     */

    /**
     * @notice Function that mints an NFT. Can only be called by `minter`
     * @param to - The address that receives the minted NFT
     */
    function simpleMint(address to) public onlyMinter {
        // increment number of tokens minted
        totalTokensMinted += 1;

        // mint the token to the address
        _mint(to, totalTokensMinted);
    }

    /**
     * @notice Function that burns a present
     * @param tokenId - The tokenId to burn
     * @param account - The account that owns the token
     *
     * @dev [WARNING!] Be sure that when using this function, the `account` actually owns `tokenId`
     */
    function burn(uint256 tokenId, address account) public onlyMinter {
        // Since _burn does not check approval for burning, we have to make sure that the
        // designated Minter only passes the correct owner of the token as `account`
        if (ownerOf(tokenId) != account) revert OnlyOwnerCanBurnThroughMinter();

        // burn the token.
        _burn(tokenId);

        // keep track of burnings
        totalTokensBurned += 1;
        burnedBy[account].push(tokenId);
        burned[tokenId] = true;

        // emit our event
        emit Burn(tokenId, account);
    }

    /*
     * URI Functions
     */

    /**
     * @notice Function that returns the Contract URI
     */
    function contractURI() public pure returns (string memory) {
        return
            string(
                abi.encodePacked(
                    "data:application/json;base64,",
                    encodeByte64(
                        bytes(
                            string(
                                abi.encodePacked(
                                    '{"name": "Santa.FM NFT Gift Exchange", ',
                                    '"description": "Santa.fm Presents are NFTs from the NFT Gift Exchange pool. Add a NFT gift to the pool and receive a NFT Present in return that you open on Christmas morning.", ',
                                    '"external_link": "https://santa.fm",'
                                )
                            )
                        )
                    )
                )
            );
    }

    /**
     * @notice Function that returns the URI for a token
     * @param id - Token ID we're referencing
     */
    function tokenURI(uint256 id) public view override returns (string memory) {
        // Fail if token hasn't been minted
        require(id <= totalTokensMinted);

        // Fail if token has been burned
        require(!burned[id]);

        return
            string(
                abi.encodePacked(
                    "data:application/json;base64,",
                    encodeByte64(
                        bytes(
                            string(
                                abi.encodePacked(
                                    '{"name": "Wrapped Present #',
                                    toString(id),
                                    '", ',
                                    '"description": "Wrapped Presents are given to you when you add an NFT to the Gift Dexchange. Use this present to redeem a random gift on Christmas Day!", ',
                                    '"image": "',
                                    tokenImage,
                                    '", "attributes": [{"trait_type": "Gift", "value": "Wrapped Present"}, {"trait_type": "Year", "value": "2022" }]}'
                                )
                            )
                        )
                    )
                )
            );
    }

    /**
     * @notice Function that encodes byte64
     * @param data - data to be encoded
     */
    function encodeByte64(
        bytes memory data
    ) internal pure returns (string memory) {
        if (data.length == 0) return "";

        // load the table into memory
        string memory table = TABLE;

        // multiply by 4/3 rounded up
        uint256 encodedLen = 4 * ((data.length + 2) / 3);

        // add some extra buffer at the end required for the writing
        string memory result = new string(encodedLen + 32);

        assembly {
            // set the actual output length
            mstore(result, encodedLen)

            // prepare the lookup table
            let tablePtr := add(table, 1)

            // input ptr
            let dataPtr := data
            let endPtr := add(dataPtr, mload(data))

            // result ptr, jump over length
            let resultPtr := add(result, 32)

            // run over the input, 3 bytes at a time
            for {

            } lt(dataPtr, endPtr) {

            } {
                dataPtr := add(dataPtr, 3)

                // read 3 bytes
                let input := mload(dataPtr)

                // write 4 characters
                mstore(
                    resultPtr,
                    shl(248, mload(add(tablePtr, and(shr(18, input), 0x3F))))
                )
                resultPtr := add(resultPtr, 1)
                mstore(
                    resultPtr,
                    shl(248, mload(add(tablePtr, and(shr(12, input), 0x3F))))
                )
                resultPtr := add(resultPtr, 1)
                mstore(
                    resultPtr,
                    shl(248, mload(add(tablePtr, and(shr(6, input), 0x3F))))
                )
                resultPtr := add(resultPtr, 1)
                mstore(
                    resultPtr,
                    shl(248, mload(add(tablePtr, and(input, 0x3F))))
                )
                resultPtr := add(resultPtr, 1)
            }

            // padding with '='
            switch mod(mload(data), 3)
            case 1 {
                mstore(sub(resultPtr, 2), shl(240, 0x3d3d))
            }
            case 2 {
                mstore(sub(resultPtr, 1), shl(248, 0x3d))
            }
        }

        return result;
    }

    /**
     * @notice Function that converts numbers to strings
     * @param value - number to be converted
     */
    function toString(uint256 value) internal pure returns (string memory) {
        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);
    }

    /*
     * Modifiers
     */

    modifier onlyMinter() {
        require(msg.sender == minter);
        _;
    }
}

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

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"string","name":"_name","type":"string"},{"internalType":"string","name":"_symbol","type":"string"},{"internalType":"string","name":"_tokenImage","type":"string"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"OnlyOwnerCanBurnThroughMinter","type":"error"},{"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":"uint256","name":"tokenId","type":"uint256"},{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Burn","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"},{"internalType":"address","name":"account","type":"address"}],"name":"burn","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"burned","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"uint256","name":"","type":"uint256"}],"name":"burnedBy","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"contractURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"pure","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":"","type":"bool"}],"stateMutability":"view","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":"address","name":"_minter","type":"address"}],"name":"setMinter","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"_tokenImage","type":"string"}],"name":"setTokenImage","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"}],"name":"simpleMint","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":"id","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalTokensBurned","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalTokensMinted","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"}]

60806040523480156200001157600080fd5b50604051620022683803806200226883398101604081905262000034916200023b565b828262000041336200008e565b815162000056906001906020850190620000de565b5080516200006c906002906020840190620000de565b505081516200008491506008906020840190620000de565b505050506200031f565b600080546001600160a01b038381166001600160a01b0319831681178455604051919092169283917f8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e09190a35050565b828054620000ec90620002cc565b90600052602060002090601f0160209004810192826200011057600085556200015b565b82601f106200012b57805160ff19168380011785556200015b565b828001600101855582156200015b579182015b828111156200015b5782518255916020019190600101906200013e565b50620001699291506200016d565b5090565b5b808211156200016957600081556001016200016e565b600082601f8301126200019657600080fd5b81516001600160401b0380821115620001b357620001b362000309565b604051601f8301601f19908116603f01168101908282118183101715620001de57620001de62000309565b81604052838152602092508683858801011115620001fb57600080fd5b600091505b838210156200021f578582018301518183018401529082019062000200565b83821115620002315760008385830101525b9695505050505050565b6000806000606084860312156200025157600080fd5b83516001600160401b03808211156200026957600080fd5b620002778783880162000184565b945060208601519150808211156200028e57600080fd5b6200029c8783880162000184565b93506040860151915080821115620002b357600080fd5b50620002c28682870162000184565b9150509250925092565b600181811c90821680620002e157607f821691505b602082108114156200030357634e487b7160e01b600052602260045260246000fd5b50919050565b634e487b7160e01b600052604160045260246000fd5b611f39806200032f6000396000f3fe608060405234801561001057600080fd5b50600436106101735760003560e01c80637d549e99116100de578063d157e30111610097578063f2fde38b11610071578063f2fde38b14610348578063f806147d1461035b578063fca3b5aa1461036e578063fcd3533c1461038157600080fd5b8063d157e301146102fb578063e8a3d48514610304578063e985e9c51461030c57600080fd5b80637d549e99146102a05780638da5cb5b146102a957806395d89b41146102ba578063a22cb465146102c2578063b88d4fde146102d5578063c87b56dd146102e857600080fd5b806323b872dd1161013057806323b872dd1461023957806342842e0e1461024c57806358dd27181461025f5780636352211e1461027257806370a0823114610285578063715018a61461029857600080fd5b806301ffc9a71461017857806306fdde03146101a0578063081812fc146101b5578063095ea7b3146101e05780632094e84d146101f557806323250cae14610216575b600080fd5b61018b6101863660046118af565b610394565b60405190151581526020015b60405180910390f35b6101a86103e6565b6040516101979190611c66565b6101c86101c3366004611932565b610478565b6040516001600160a01b039091168152602001610197565b6101f36101ee366004611885565b61049f565b005b610208610203366004611885565b6105ba565b604051908152602001610197565b61018b610224366004611932565b600c6020526000908152604090205460ff1681565b6101f3610247366004611791565b6105eb565b6101f361025a366004611791565b61061c565b6101f361026d36600461173c565b610637565b6101c8610280366004611932565b610677565b61020861029336600461173c565b6106d7565b6101f361075d565b61020860095481565b6000546001600160a01b03166101c8565b6101a8610771565b6101f36102d0366004611849565b610780565b6101f36102e33660046117cd565b61078f565b6101a86102f6366004611932565b6107c7565b610208600a5481565b6101a861084d565b61018b61031a36600461175e565b6001600160a01b03918216600090815260066020908152604080832093909416825291909152205460ff1690565b6101f361035636600461173c565b6109c4565b6101f36103693660046118e9565b610a3a565b6101f361037c36600461173c565b610a55565b6101f361038f36600461194b565b610a7f565b60006001600160e01b031982166380ac58cd60e01b14806103c557506001600160e01b03198216635b5e139f60e01b145b806103e057506301ffc9a760e01b6001600160e01b03198316145b92915050565b6060600180546103f590611deb565b80601f016020809104026020016040519081016040528092919081815260200182805461042190611deb565b801561046e5780601f106104435761010080835404028352916020019161046e565b820191906000526020600020905b81548152906001019060200180831161045157829003601f168201915b5050505050905090565b600061048382610b71565b506000908152600560205260409020546001600160a01b031690565b60006104aa82610677565b9050806001600160a01b0316836001600160a01b0316141561051d5760405162461bcd60e51b815260206004820152602160248201527f4552433732313a20617070726f76616c20746f2063757272656e74206f776e656044820152603960f91b60648201526084015b60405180910390fd5b336001600160a01b03821614806105395750610539813361031a565b6105ab5760405162461bcd60e51b815260206004820152603d60248201527f4552433732313a20617070726f76652063616c6c6572206973206e6f7420746f60448201527f6b656e206f776e6572206f7220617070726f76656420666f7220616c6c0000006064820152608401610514565b6105b58383610bd0565b505050565b600b60205281600052604060002081815481106105d657600080fd5b90600052602060002001600091509150505481565b6105f53382610c3e565b6106115760405162461bcd60e51b815260040161051490611c79565b6105b5838383610cbd565b6105b58383836040518060200160405280600081525061078f565b6007546001600160a01b0316331461064e57600080fd5b6001600960008282546106619190611d5d565b9250508190555061067481600954610e2e565b50565b6000818152600360205260408120546001600160a01b0316806103e05760405162461bcd60e51b8152602060048201526018602482015277115490cdcc8c4e881a5b9d985b1a59081d1bdad95b88125160421b6044820152606401610514565b60006001600160a01b0382166107415760405162461bcd60e51b815260206004820152602960248201527f4552433732313a2061646472657373207a65726f206973206e6f7420612076616044820152683634b21037bbb732b960b91b6064820152608401610514565b506001600160a01b031660009081526004602052604090205490565b610765610fc7565b61076f6000611021565b565b6060600280546103f590611deb565b61078b338383611071565b5050565b6107993383610c3e565b6107b55760405162461bcd60e51b815260040161051490611c79565b6107c184848484611140565b50505050565b60606009548211156107d857600080fd5b6000828152600c602052604090205460ff16156107f457600080fd5b61082761080083611173565b600860405160200161081392919061199a565b604051602081830303815290604052611271565b6040516020016108379190611be4565b6040516020818303038152906040529050919050565b60606109a0604051602001610813907f7b226e616d65223a202253616e74612e464d204e465420476966742045786368815266030b733b29116160cd1b60208201527f226465736372697074696f6e223a202253616e74612e666d2050726573656e7460278201527f7320617265204e4654732066726f6d20746865204e465420476966742045786360478201527f68616e676520706f6f6c2e204164642061204e4654206769667420746f20746860678201527f6520706f6f6c20616e6420726563656976652061204e46542050726573656e7460878201527f20696e2072657475726e207468617420796f75206f70656e206f6e204368726960a782015270039ba36b0b99036b7b93734b7339711161607d1b60c78201527f2265787465726e616c5f6c696e6b223a202268747470733a2f2f73616e74612e60d882015263199b488b60e21b60f882015260fc0190565b6040516020016109b09190611be4565b604051602081830303815290604052905090565b6109cc610fc7565b6001600160a01b038116610a315760405162461bcd60e51b815260206004820152602660248201527f4f776e61626c653a206e6577206f776e657220697320746865207a65726f206160448201526564647265737360d01b6064820152608401610514565b61067481611021565b610a42610fc7565b805161078b906008906020840190611611565b610a5d610fc7565b600780546001600160a01b0319166001600160a01b0392909216919091179055565b6007546001600160a01b03163314610a9657600080fd5b806001600160a01b0316610aa983610677565b6001600160a01b031614610ad05760405163e049491960e01b815260040160405180910390fd5b610ad9826113d9565b6001600a6000828254610aec9190611d5d565b90915550506001600160a01b0381166000818152600b6020908152604080832080546001808201835591855283852001879055868452600c835292819020805460ff19169093179092558151858152908101929092527ff6554c3a5d28e08c120b5a69c7edbaf52f935bd2596a60b8a18e282cd257cddb910160405180910390a15050565b6000818152600360205260409020546001600160a01b03166106745760405162461bcd60e51b8152602060048201526018602482015277115490cdcc8c4e881a5b9d985b1a59081d1bdad95b88125160421b6044820152606401610514565b600081815260056020526040902080546001600160a01b0319166001600160a01b0384169081179091558190610c0582610677565b6001600160a01b03167f8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b92560405160405180910390a45050565b600080610c4a83610677565b9050806001600160a01b0316846001600160a01b03161480610c9157506001600160a01b0380821660009081526006602090815260408083209388168352929052205460ff165b80610cb55750836001600160a01b0316610caa84610478565b6001600160a01b0316145b949350505050565b826001600160a01b0316610cd082610677565b6001600160a01b031614610cf65760405162461bcd60e51b815260040161051490611d18565b6001600160a01b038216610d585760405162461bcd60e51b8152602060048201526024808201527f4552433732313a207472616e7366657220746f20746865207a65726f206164646044820152637265737360e01b6064820152608401610514565b610d65838383600161147c565b826001600160a01b0316610d7882610677565b6001600160a01b031614610d9e5760405162461bcd60e51b815260040161051490611d18565b600081815260056020908152604080832080546001600160a01b03199081169091556001600160a01b0387811680865260048552838620805460001901905590871680865283862080546001019055868652600390945282852080549092168417909155905184937fddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef91a4505050565b6001600160a01b038216610e845760405162461bcd60e51b815260206004820181905260248201527f4552433732313a206d696e7420746f20746865207a65726f20616464726573736044820152606401610514565b6000818152600360205260409020546001600160a01b031615610ee95760405162461bcd60e51b815260206004820152601c60248201527f4552433732313a20746f6b656e20616c7265616479206d696e746564000000006044820152606401610514565b610ef760008383600161147c565b6000818152600360205260409020546001600160a01b031615610f5c5760405162461bcd60e51b815260206004820152601c60248201527f4552433732313a20746f6b656e20616c7265616479206d696e746564000000006044820152606401610514565b6001600160a01b038216600081815260046020908152604080832080546001019055848352600390915280822080546001600160a01b0319168417905551839291907fddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef908290a45050565b6000546001600160a01b0316331461076f5760405162461bcd60e51b815260206004820181905260248201527f4f776e61626c653a2063616c6c6572206973206e6f7420746865206f776e65726044820152606401610514565b600080546001600160a01b038381166001600160a01b0319831681178455604051919092169283917f8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e09190a35050565b816001600160a01b0316836001600160a01b031614156110d35760405162461bcd60e51b815260206004820152601960248201527f4552433732313a20617070726f766520746f2063616c6c6572000000000000006044820152606401610514565b6001600160a01b03838116600081815260066020908152604080832094871680845294825291829020805460ff191686151590811790915591519182527f17307eab39ab6107e8899845ad3d59bd9653f200f220920489ca2b5937696c31910160405180910390a3505050565b61114b848484610cbd565b61115784848484611504565b6107c15760405162461bcd60e51b815260040161051490611cc6565b6060816111975750506040805180820190915260018152600360fc1b602082015290565b8160005b81156111c157806111ab81611e26565b91506111ba9050600a83611d75565b915061119b565b60008167ffffffffffffffff8111156111dc576111dc611e97565b6040519080825280601f01601f191660200182016040528015611206576020820181803683370190505b5090505b8415610cb55761121b600183611da8565b9150611228600a86611e41565b611233906030611d5d565b60f81b81838151811061124857611248611e81565b60200101906001600160f81b031916908160001a90535061126a600a86611d75565b945061120a565b606081516000141561129157505060408051602081019091526000815290565b6000604051806060016040528060408152602001611ec460409139905060006003845160026112c09190611d5d565b6112ca9190611d75565b6112d5906004611d89565b905060006112e4826020611d5d565b67ffffffffffffffff8111156112fc576112fc611e97565b6040519080825280601f01601f191660200182016040528015611326576020820181803683370190505b509050818152600183018586518101602084015b818310156113945760039283018051603f601282901c811687015160f890811b8552600c83901c8216880151811b6001860152600683901c8216880151811b60028601529116860151901b9382019390935260040161133a565b6003895106600181146113ae57600281146113bf576113cb565b613d3d60f01b6001198301526113cb565b603d60f81b6000198301525b509398975050505050505050565b60006113e482610677565b90506113f481600084600161147c565b6113fd82610677565b600083815260056020908152604080832080546001600160a01b03199081169091556001600160a01b0385168085526004845282852080546000190190558785526003909352818420805490911690555192935084927fddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef908390a45050565b60018111156107c1576001600160a01b038416156114c2576001600160a01b038416600090815260046020526040812080548392906114bc908490611da8565b90915550505b6001600160a01b038316156107c1576001600160a01b038316600090815260046020526040812080548392906114f9908490611d5d565b909155505050505050565b60006001600160a01b0384163b1561160657604051630a85bd0160e11b81526001600160a01b0385169063150b7a0290611548903390899088908890600401611c29565b602060405180830381600087803b15801561156257600080fd5b505af1925050508015611592575060408051601f3d908101601f1916820190925261158f918101906118cc565b60015b6115ec573d8080156115c0576040519150601f19603f3d011682016040523d82523d6000602084013e6115c5565b606091505b5080516115e45760405162461bcd60e51b815260040161051490611cc6565b805181602001fd5b6001600160e01b031916630a85bd0160e11b149050610cb5565b506001949350505050565b82805461161d90611deb565b90600052602060002090601f01602090048101928261163f5760008555611685565b82601f1061165857805160ff1916838001178555611685565b82800160010185558215611685579182015b8281111561168557825182559160200191906001019061166a565b50611691929150611695565b5090565b5b808211156116915760008155600101611696565b600067ffffffffffffffff808411156116c5576116c5611e97565b604051601f8501601f19908116603f011681019082821181831017156116ed576116ed611e97565b8160405280935085815286868601111561170657600080fd5b858560208301376000602087830101525050509392505050565b80356001600160a01b038116811461173757600080fd5b919050565b60006020828403121561174e57600080fd5b61175782611720565b9392505050565b6000806040838503121561177157600080fd5b61177a83611720565b915061178860208401611720565b90509250929050565b6000806000606084860312156117a657600080fd5b6117af84611720565b92506117bd60208501611720565b9150604084013590509250925092565b600080600080608085870312156117e357600080fd5b6117ec85611720565b93506117fa60208601611720565b925060408501359150606085013567ffffffffffffffff81111561181d57600080fd5b8501601f8101871361182e57600080fd5b61183d878235602084016116aa565b91505092959194509250565b6000806040838503121561185c57600080fd5b61186583611720565b91506020830135801515811461187a57600080fd5b809150509250929050565b6000806040838503121561189857600080fd5b6118a183611720565b946020939093013593505050565b6000602082840312156118c157600080fd5b813561175781611ead565b6000602082840312156118de57600080fd5b815161175781611ead565b6000602082840312156118fb57600080fd5b813567ffffffffffffffff81111561191257600080fd5b8201601f8101841361192357600080fd5b610cb5848235602084016116aa565b60006020828403121561194457600080fd5b5035919050565b6000806040838503121561195e57600080fd5b8235915061178860208401611720565b60008151808452611986816020860160208601611dbf565b601f01601f19169290920160200192915050565b7f7b226e616d65223a2022577261707065642050726573656e742023000000000081526000835160206119d382601b8601838901611dbf565b6201116160ed1b601b928501928301527f226465736372697074696f6e223a2022577261707065642050726573656e7473601e8301527f2061726520676976656e20746f20796f75207768656e20796f75206164642061603e8301527f6e204e465420746f207468652047696674204465786368616e67652e20557365605e8301527f20746869732070726573656e7420746f2072656465656d20612072616e646f6d607e8301527f2067696674206f6e204368726973746d61732044617921222c20000000000000609e830152691134b6b0b3b2911d101160b11b60b8830152845460c290600090600181811c9080831680611ad157607f831692505b868310811415611aef57634e487b7160e01b85526022600452602485fd5b808015611b035760018114611b1857611b49565b60ff1985168988015283890187019550611b49565b60008c81526020902060005b85811015611b3f5781548b82018a0152908401908901611b24565b505086848a010195505b50507f222c202261747472696275746573223a205b7b2274726169745f74797065223a845250507f202247696674222c202276616c7565223a2022577261707065642050726573656020830152507f6e74227d2c207b2274726169745f74797065223a202259656172222c2022766160408201526f6c7565223a20223230323222207d5d7d60801b6060820152607001979650505050505050565b7f646174613a6170706c69636174696f6e2f6a736f6e3b6261736536342c000000815260008251611c1c81601d850160208701611dbf565b91909101601d0192915050565b6001600160a01b0385811682528416602082015260408101839052608060608201819052600090611c5c9083018461196e565b9695505050505050565b602081526000611757602083018461196e565b6020808252602d908201527f4552433732313a2063616c6c6572206973206e6f7420746f6b656e206f776e6560408201526c1c881bdc88185c1c1c9bdd9959609a1b606082015260800190565b60208082526032908201527f4552433732313a207472616e7366657220746f206e6f6e20455243373231526560408201527131b2b4bb32b91034b6b83632b6b2b73a32b960711b606082015260800190565b60208082526025908201527f4552433732313a207472616e736665722066726f6d20696e636f72726563742060408201526437bbb732b960d91b606082015260800190565b60008219821115611d7057611d70611e55565b500190565b600082611d8457611d84611e6b565b500490565b6000816000190483118215151615611da357611da3611e55565b500290565b600082821015611dba57611dba611e55565b500390565b60005b83811015611dda578181015183820152602001611dc2565b838111156107c15750506000910152565b600181811c90821680611dff57607f821691505b60208210811415611e2057634e487b7160e01b600052602260045260246000fd5b50919050565b6000600019821415611e3a57611e3a611e55565b5060010190565b600082611e5057611e50611e6b565b500690565b634e487b7160e01b600052601160045260246000fd5b634e487b7160e01b600052601260045260246000fd5b634e487b7160e01b600052603260045260246000fd5b634e487b7160e01b600052604160045260246000fd5b6001600160e01b03198116811461067457600080fdfe4142434445464748494a4b4c4d4e4f505152535455565758595a6162636465666768696a6b6c6d6e6f707172737475767778797a303132333435363738392b2fa2646970667358221220844c216f4677fb250a6654118627cd7a6a0d34a0052e056eadcfce984f70b0ba64736f6c63430008070033000000000000000000000000000000000000000000000000000000000000006000000000000000000000000000000000000000000000000000000000000000a000000000000000000000000000000000000000000000000000000000000000e0000000000000000000000000000000000000000000000000000000000000001a53616e74612e464d204e465420476966742045786368616e6765000000000000000000000000000000000000000000000000000000000000000000000000000750524553454e54000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000035697066733a2f2f516d5934777963506869574d3959756a675a366669794a676163325976324e43715a63457944424a3372706865350000000000000000000000

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

000000000000000000000000000000000000000000000000000000000000006000000000000000000000000000000000000000000000000000000000000000a000000000000000000000000000000000000000000000000000000000000000e0000000000000000000000000000000000000000000000000000000000000001a53616e74612e464d204e465420476966742045786368616e6765000000000000000000000000000000000000000000000000000000000000000000000000000750524553454e54000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000035697066733a2f2f516d5934777963506869574d3959756a675a366669794a676163325976324e43715a63457944424a3372706865350000000000000000000000

-----Decoded View---------------
Arg [0] : _name (string): Santa.FM NFT Gift Exchange
Arg [1] : _symbol (string): PRESENT
Arg [2] : _tokenImage (string): ipfs://QmY4wycPhiWM9YujgZ6fiyJgac2Yv2NCqZcEyDBJ3rphe5

-----Encoded View---------------
10 Constructor Arguments found :
Arg [0] : 0000000000000000000000000000000000000000000000000000000000000060
Arg [1] : 00000000000000000000000000000000000000000000000000000000000000a0
Arg [2] : 00000000000000000000000000000000000000000000000000000000000000e0
Arg [3] : 000000000000000000000000000000000000000000000000000000000000001a
Arg [4] : 53616e74612e464d204e465420476966742045786368616e6765000000000000
Arg [5] : 0000000000000000000000000000000000000000000000000000000000000007
Arg [6] : 50524553454e5400000000000000000000000000000000000000000000000000
Arg [7] : 0000000000000000000000000000000000000000000000000000000000000035
Arg [8] : 697066733a2f2f516d5934777963506869574d3959756a675a366669794a6761
Arg [9] : 63325976324e43715a63457944424a3372706865350000000000000000000000