Contract Source Code (Solidity Standard Json-Input format)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

// SPDX-License-Identifier: MIT

pragma solidity ^0.7.0;

import 'openzeppelin-solidity/contracts/token/ERC721/ERC721.sol';
import 'openzeppelin-solidity/contracts/token/ERC20/IERC20.sol';
import 'openzeppelin-solidity/contracts/access/Ownable.sol';
import './MutationMetadata.sol';

contract MutationToken is ERC721, Ownable {
  address public metadata;
  address public controller;
  address public admin;

  modifier onlyAdminOrController() {
    require(
      (msg.sender == controller || msg.sender == admin),
      'MutationToken: You are not an admin or controller'
    );
    _;
  }

  constructor(
    string memory name,
    string memory symbol,
    address _metadata,
    address _admin
  ) ERC721(name, symbol) {
    metadata = _metadata;
    admin = _admin;
  }

  function mint(
    address recipient,
    uint256 tokenId
  ) public onlyAdminOrController {
    _safeMint(recipient, tokenId);
  }

  function burn(uint256 tokenId) public onlyAdminOrController {
    _burn(tokenId);
  }

  function updateMetadata(address _metadata) public onlyAdminOrController {
    metadata = _metadata;
  }

  function updateController(address _controller) public onlyAdminOrController {
    controller = _controller;
  }

  function updateAdmin(address _admin) public onlyOwner {
    admin = _admin;
  }

  function tokenURI(
    uint256 _tokenId
  ) public view virtual override returns (string memory _infoUrl) {
    return MutationMetadata(metadata).tokenURI(_tokenId);
  }

  /**
   * @dev Moves Token to a certain address.
   * @param _to The address to receive the Token.
   * @param _amount The amount of Token to be transferred.
   * @param _token The address of the Token to be transferred.
   */
  function recoverERC20(
    address _to,
    uint256 _amount,
    address _token
  ) public onlyOwner returns (bool) {
    require(_amount <= IERC20(_token).balanceOf(address(this)));
    return IERC20(_token).transfer(_to, _amount);
  }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.7.0;

/// @title Base64
/// @author Brecht Devos - <[email protected]>
/// @notice Provides a function for encoding some bytes in base64
library Base64 {
    string internal constant TABLE =
        "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";

    function encode(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;
    }
}

// SPDX-License-Identifier: MIT

/*
 * @title String & slice utility library for Solidity contracts.
 * @author Nick Johnson <[email protected]>
 */

pragma solidity ^0.7.0;

library strings {
    struct slice {
        uint _len;
        uint _ptr;
    }

    function memcpy(uint dest, uint src, uint len) private pure {
        // Copy word-length chunks while possible
        for (; len >= 32; len -= 32) {
            assembly {
                mstore(dest, mload(src))
            }
            dest += 32;
            src += 32;
        }

        // Copy remaining bytes
        uint mask = 256 ** (32 - len) - 1;
        assembly {
            let srcpart := and(mload(src), not(mask))
            let destpart := and(mload(dest), mask)
            mstore(dest, or(destpart, srcpart))
        }
    }

    /*
     * @dev Returns a slice containing the entire string.
     * @param self The string to make a slice from.
     * @return A newly allocated slice containing the entire string.
     */
    function toSlice(string memory self) internal pure returns (slice memory) {
        uint ptr;
        assembly {
            ptr := add(self, 0x20)
        }
        return slice(bytes(self).length, ptr);
    }

    /*
     * @dev Returns a newly allocated string containing the concatenation of
     *      `self` and `other`.
     * @param self The first slice to concatenate.
     * @param other The second slice to concatenate.
     * @return The concatenation of the two strings.
     */
    function concat(slice memory self, slice memory other) internal pure returns (string memory) {
        string memory ret = new string(self._len + other._len);
        uint retptr;
        assembly {
            retptr := add(ret, 32)
        }
        memcpy(retptr, self._ptr, self._len);
        memcpy(retptr + self._len, other._ptr, other._len);
        return ret;
    }
}

// SPDX-License-Identifier: MIT

/**
 * Forked from folia-app/folia-contracts: https://github.com/folia-app/folia-contracts
 * Many thanks to Billy Rennekamp <https://github.com/okwme> and Folia <https://www.folia.app/> 💚
 */

pragma solidity ^0.7.0;

/**
 * Metadata contract is upgradeable and returns metadata about Token
 */

import './helpers/strings.sol';

contract Metadata {
  using strings for *;

  function tokenURI(
    uint256 _tokenId
  ) public pure returns (string memory _infoUrl) {
    string memory base = 'https://seeder.mutant.garden/v1/tokens/';
    string memory id = uint2str(_tokenId);
    return base.toSlice().concat(id.toSlice());
  }

  function uint2str(uint256 i) internal pure returns (string memory) {
    if (i == 0) return '0';
    uint256 j = i;
    uint256 length;
    while (j != 0) {
      length++;
      j /= 10;
    }
    bytes memory bstr = new bytes(length);
    uint256 k = length - 1;
    while (i != 0) {
      uint256 _uint = 48 + (i % 10);
      bstr[k--] = toBytes(_uint)[31];
      i /= 10;
    }
    return string(bstr);
  }

  function toBytes(uint256 x) public pure returns (bytes memory b) {
    b = new bytes(32);
    assembly {
      mstore(add(b, 32), x)
    }
  }
}

// SPDX-License-Identifier: MIT

/**
 * Forked from folia-app/folia-contracts: https://github.com/folia-app/folia-contracts
 * Many thanks to Billy Rennekamp <https://github.com/okwme> and Folia <https://www.folia.app/> 💚
 */

pragma solidity ^0.7.0;
pragma experimental ABIEncoderV2;


import './MutationToken.sol';
import './Seeder.sol';
import 'openzeppelin-solidity/contracts/math/SafeMath.sol';
import 'openzeppelin-solidity/contracts/access/Ownable.sol';
import 'openzeppelin-solidity/contracts/utils/ReentrancyGuard.sol';
import 'openzeppelin-solidity/contracts/cryptography/ECDSA.sol';


contract MutationController is Ownable, ReentrancyGuard {
  event MutationBought(uint256 tokenId, address recipient, uint256 paid);

  using SafeMath for uint256;

  uint256 public adminPriceShare = 0.035 ether;
  bool public paused = false;
  address payable public admin;
  MutationToken public mutationToken;
  MutationMetadata public mutationMetadata;
  Seeder public seeder;
  uint256 private nextTokenId = 1;
  address public authorizedSigner;

  // map mutant tokenIds (birthBlock) to a boolean
  mapping(uint256 => bool) private allowPublicMint;

  // map mutant TokenIds to public minting price share
  mapping(uint256 => uint256) private publicMintHolderShare;

  // map mutant TokenIds to payout wallet addresses
  mapping(uint256 => address) private publicMintingPayoutWallet;

  modifier notPaused() {
    require(!paused, 'MutationController: is paused');
    _;
  }

  modifier onlyAdmin() {
    require((msg.sender == admin), 'MutationController: You are not the admin');
    _;
  }

  modifier onlyMutantHolderOrAdmin(uint256 _mutantTokenId) {
    require(
      seeder.ownerOf(_mutantTokenId) == msg.sender || msg.sender == admin,
      'MutationController: you do not own that mutant or you are not admin'
    );
    _;
  }

  constructor(
    MutationToken _mutationToken,
    MutationMetadata _mutationMetadata,
    Seeder _seeder,
    address payable _admin,
    address payable _authorizedSigner
  ) {
    require(
      _admin != address(0),
      'MutationController: admin cannot be zero address'
    );
    require(
      _authorizedSigner != address(0),
      'MutationController: signer cannot be zero address'
    );
    require(
      address(_mutationToken) != address(0),
      'MutationController: token cannot be zero address'
    );
    require(
      address(_mutationMetadata) != address(0),
      'MutationController: metadata cannot be zero address'
    );
    require(
      address(_seeder) != address(0),
      'MutationController: seeder cannot be zero address'
    );

    mutationToken = _mutationToken;
    mutationMetadata = _mutationMetadata;
    seeder = _seeder;
    admin = _admin;
    authorizedSigner = _authorizedSigner;
  }

  function updatePaused(bool _paused) public onlyOwner {
    paused = _paused;
  }

  function updateAdminPriceShare(uint256 _price) public onlyOwner {
    adminPriceShare = _price;
  }

  function updateAuthorizedSigner(address _authorizedSigner) public onlyOwner {
    authorizedSigner = _authorizedSigner;
  }

  function setHolderPublicMintPayoutWallet(
    uint256 _mutantTokenId,
    address _payoutWalletAddress
  ) public onlyMutantHolderOrAdmin(_mutantTokenId) {
    require(
      _payoutWalletAddress != address(0),
      'MutationController: Payout wallet cannot be zero address'
    );

    publicMintingPayoutWallet[_mutantTokenId] = _payoutWalletAddress;
  }

  function setPublicMintHolderShareAndPayoutAddressAndEnable(
    uint256 _mutantTokenId,
    uint256 _publicPrice,
    address _payoutWalletAddress
  ) public {
    updatePublicPrice(_mutantTokenId, _publicPrice);
    setHolderPublicMintPayoutWallet(_mutantTokenId, _payoutWalletAddress);
    setPublicMintEnabled(_mutantTokenId, true);
  }

  function updatePublicPrice(
    uint256 _mutantTokenId,
    uint256 _publicPrice
  ) public onlyMutantHolderOrAdmin(_mutantTokenId) {
    publicMintHolderShare[_mutantTokenId] = _publicPrice;
  }

  function getPublicHolderShare(
    uint256 _tokenId
  ) public view returns (uint256 _price) {
    return publicMintHolderShare[_tokenId];
  }

  function mint(
    address _recipient,
    string memory _mutantName,
    Mutation memory _mutation
  ) private returns (uint256 _mutationTokenId) {
    uint256 tokenId = nextTokenId++;
    mutationMetadata.storeMutation(tokenId, _mutantName, _mutation);
    mutationToken.mint(_recipient, tokenId);
    return tokenId;
  }

  function adminMint(
    address _recipient,
    string memory _mutantName,
    Mutation memory _mutation
  ) public onlyAdmin returns (uint256 _mutationTokenId) {
    return mint(_recipient, _mutantName, _mutation);
  }

  function setPublicMintEnabled(
    uint256 _mutantTokenId,
    bool _enabled
  ) public onlyMutantHolderOrAdmin(_mutantTokenId) {
    allowPublicMint[_mutantTokenId] = _enabled;
  }

  function getPublicMintEnabled(
    uint256 _mutantTokenId
  ) public view returns (bool) {
    return allowPublicMint[_mutantTokenId];
  }

  function buy(
    address _recipient,
    string memory _mutantName,
    Mutation memory _mutation,
    bytes memory _signature
  ) public payable notPaused nonReentrant returns (uint256 _mutationTokenId) {
    require(
      allowPublicMint[_mutation.birthBlock],
      'MutationController: Public mint needs to be allowed for this mutant'
    );
    uint256 holderShare = publicMintHolderShare[_mutation.birthBlock];
    require(
      msg.value >= holderShare + adminPriceShare,
      'MutationController: You did not send enough ether'
    );
    address holderShareWallet = publicMintingPayoutWallet[_mutation.birthBlock];
    require(
      holderShareWallet != address(0),
      'MutationController: No receiving mutant holder payout wallet set'
    );

    verifySignature(_mutantName, _mutation, _signature);

    uint256 mutationTokenId = mint(_recipient, _mutantName, _mutation);

    // uint256 adminReceives = msg.value - holderShare;
    // uint256 holderReceives = holderShare;
    
    uint256 adminReceives = msg.value.sub(holderShare);

    bool success;
    (success, ) = admin.call{value: adminReceives}('');
    require(success, 'MutationController: Admin failed to receive');
    (success, ) = holderShareWallet.call{value: holderShare}('');
    require(success, 'MutationController: Holder failed to receive');

    emit MutationBought(mutationTokenId, _recipient, msg.value);
    return mutationTokenId;
  }

  function buyAsHolder(
    address _recipient,
    string memory _mutantName,
    Mutation memory _mutation,
    bytes memory _signature
  )
    public
    payable
    notPaused
    nonReentrant
    onlyMutantHolderOrAdmin(_mutation.birthBlock)
  {
    require(
      msg.value >= adminPriceShare,
      'MutationController: You did not send enough ether'
    );
    verifySignature(_mutantName, _mutation, _signature);

    uint256 tokenId = mint(_recipient, _mutantName, _mutation);

    bool success;
    (success, ) = admin.call{value: msg.value}('');
    require(success, 'MutationController: Payout address failed to receive');

    emit MutationBought(tokenId, _recipient, msg.value);
  }

  function updateAdmin(address payable _admin) public onlyOwner {
    admin = _admin;
  }

  function verifySignature(
    string memory _mutantName,
    Mutation memory _mutation,
    bytes memory _signature
  ) private view {
    bytes32 messageHash = keccak256(
      abi.encodePacked(
        msg.sender,
        _mutation.birthBlock,
        _mutation.arweave,
        _mutation.mutationBlock,
        _mutation.mutationIndex,
        _mutantName
      )
    );

    bytes32 ethSignedMessageHash = ECDSA.toEthSignedMessageHash(messageHash);
    address recoveredSigner = ECDSA.recover(ethSignedMessageHash, _signature);
    require(
      recoveredSigner == authorizedSigner,
      'MutationController: Invalid signature'
    );
  }

  function updateMutationToken(MutationToken _mutationToken) public onlyOwner {
    mutationToken = _mutationToken;
  }

  function updateMutationMetadata(
    MutationMetadata _mutationMetadata
  ) public onlyOwner {
    mutationMetadata = _mutationMetadata;
  }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.7.0;
pragma experimental ABIEncoderV2;

import './helpers/strings.sol';
import './helpers/Base64.sol';
import './MutationController.sol';
import './MutationMetadataDB.sol';

contract MutationMetadata {
  using strings for *;
  string private constant JSON_PROTOCOL_URI = 'data:application/json;base64,';

  address public controller;
  address public admin;

  string public titleSeparator = ' / ';
  string public descriptionText = 'Mutant Garden Seeder Mutation';

  MutationMetadataDB public db;

  function updateController(address _controller) public onlyAdminOrController {
    controller = _controller;
  }

  function updateAdmin(address _admin) public onlyAdminOrController {
    admin = _admin;
  }

  modifier onlyAdminOrController() {
    require(
      (msg.sender == controller || msg.sender == admin),
      'MutationMetadata: You are not an admin or controller'
    );
    _;
  }

  constructor(address _admin) {
    admin = _admin;
  }

  function setTitleSeparator(
    string memory _titleSeparator
  ) public onlyAdminOrController {
    titleSeparator = _titleSeparator;
  }

  function setDescriptionText(
    string memory _descriptionText
  ) public onlyAdminOrController {
    descriptionText = _descriptionText;
  }

  function setMutationMetadataDB(
    address _mutationMetadataDBAddress
  ) public onlyAdminOrController {
    db = MutationMetadataDB(_mutationMetadataDBAddress);
  }

  function storeMutation(
    uint256 _tokenId,
    string memory _mutantName,
    Mutation memory _mutation
  ) public onlyAdminOrController {
    require(
      !isMutantMutationAlreadyStored(
        _mutation.birthBlock,
        _mutation.mutationBlock
      ),
      'mutation already exists'
    );

    bytes memory n = bytes(db.getMutantNameByBirthBlock(_mutation.birthBlock));

    if (n.length == 0) {
      db.setMutantNameByBirthBlock(_mutation.birthBlock, _mutantName);
    }

    db.setMutation(_tokenId, _mutation);

    db.setTokenIdByMutantBirthAndMutation(
      _mutation.birthBlock,
      _mutation.mutationBlock,
      _tokenId
    );
  }

  function getTokenIdByMutantMutation(
    uint256 _birthBlock,
    uint256 _mutationBlock
  ) public view returns (uint256) {
    return db.getTokenIdByMutantBirthAndMutation(_birthBlock, _mutationBlock); // ;;//tokenIdByMutantMutation[_birthBlock][_mutationBlock];
  }

  function getMutationByTokenId(
    uint256 _tokenId
  ) public view returns (Mutation memory) {
    Mutation memory mutation = db.getMutation(_tokenId);
    require(mutation.birthBlock != 0, 'Mutation does not exist');
    return mutation;
  }

  function getTokenData(
    uint256 _tokenId
  ) public view returns (string memory, Mutation memory) {
    Mutation memory mutation = db.getMutation(_tokenId); //mutations[_tokenId];
    require(mutation.birthBlock != 0, 'Mutation does not exist');
    string memory mutantName = db.getMutantNameByBirthBlock(
      mutation.birthBlock
    );
    return (mutantName, mutation);
  }

  function getMutantNameByBirthBlock(
    uint256 _birthBlock
  ) public view returns (string memory) {
    return db.getMutantNameByBirthBlock(_birthBlock);
  }

  function isMutantMutationAlreadyStored(
    uint256 _birthBlock,
    uint256 _mutationBlock
  ) public view returns (bool) {
    uint256 tokenId = db.getTokenIdByMutantBirthAndMutation(
      _birthBlock,
      _mutationBlock
    );
    return tokenId != 0;
  }

  function tokenURI(
    uint256 _tokenId
  ) public view returns (string memory _infoUrl) {
    Mutation memory mutation = db.getMutation(_tokenId);
    require(mutation.birthBlock != 0, 'Mutation does not exist');

    string memory mutantName = db.getMutantNameByBirthBlock(
      mutation.birthBlock
    );

    string memory mutationString = mutation.mutationIndex == 0
      ? 'birth'
      : uint2str(mutation.mutationIndex);
    bytes memory json = abi.encodePacked(
      '{"name":"',
      mutantName,
      titleSeparator,
      mutationString,
      '",',
      '"description":"',
      descriptionText,
      '",',
      '"attributes":[{"trait_type":"Name","value":"',
      mutantName,
      '"},{"trait_type":"Birth Block","value":"',
      uint2str(mutation.birthBlock),
      '"},{"trait_type":"Mutation Block","value":"',
      uint2str(mutation.mutationBlock),
      '"},{"trait_type":"Mutation","value":"',
      mutationString,
      '"}],',
      '"image":"ar://',
      mutation.arweave,
      '"}'
    );
    return string(abi.encodePacked(JSON_PROTOCOL_URI, Base64.encode(json)));
  }

  function uint2str(uint256 i) internal pure returns (string memory) {
    if (i == 0) return '0';
    uint256 j = i;
    uint256 length;
    while (j != 0) {
      length++;
      j /= 10;
    }
    bytes memory bstr = new bytes(length);
    uint256 k = length - 1;
    while (i != 0) {
      uint256 _uint = 48 + (i % 10);
      bstr[k--] = toBytes(_uint)[31];
      i /= 10;
    }
    return string(bstr);
  }

  function toBytes(uint256 x) internal pure returns (bytes memory b) {
    b = new bytes(32);
    assembly {
      mstore(add(b, 32), x)
    }
  }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.7.0;
pragma experimental ABIEncoderV2;

import 'openzeppelin-solidity/contracts/access/Ownable.sol';

struct Mutation {
  uint256 birthBlock;
  uint256 mutationBlock;
  uint256 mutationIndex; // 0 = birth
  string arweave;
}

contract MutationMetadataDB is Ownable {
  // maps birthBlock to fixed data
  address public mutationMetadata;

  mapping(uint256 => string) private mutantNames;

  // maps tokenId to mutation data
  mapping(uint256 => Mutation) private mutations;

  // birthBlock => mutationBlock => tokenId
  mapping(uint256 => mapping(uint256 => uint256))
    private tokenIdByMutantMutation;

  modifier onlyMetadata() {
    require(
      (msg.sender == mutationMetadata || msg.sender == owner()),
      'MutationMetadataDB: You are not an owner or metadata contract'
    );
    _;
  }

  function updateMutationMetadata(address _mutationMetadata) public onlyOwner {
    mutationMetadata = _mutationMetadata;
  }

  function getMutantNameByBirthBlock(
    uint256 _birthBlock
  ) public view returns (string memory) {
    return mutantNames[_birthBlock];
  }

  function getTokenIdByMutantBirthAndMutation(
    uint256 _birthBlock,
    uint256 _mutationBlock
  ) public view returns (uint256 _tokenId) {
    return tokenIdByMutantMutation[_birthBlock][_mutationBlock];
  }

  function getMutation(uint256 _tokenId) public view returns (Mutation memory) {
    return mutations[_tokenId];
  }

  function setMutantNameByBirthBlock(
    uint256 _birthBlock,
    string memory _mutantName
  ) public onlyMetadata {
    mutantNames[_birthBlock] = _mutantName;
  }

  function setTokenIdByMutantBirthAndMutation(
    uint256 _birthBlock,
    uint256 _mutationBlock,
    uint256 _tokenId
  ) public onlyMetadata {
    tokenIdByMutantMutation[_birthBlock][_mutationBlock] = _tokenId;
  }

  function setMutation(
    uint256 _tokenId,
    Mutation memory _mutation
  ) public onlyMetadata {
    mutations[_tokenId] = _mutation;
  }
}

// SPDX-License-Identifier: MIT

/**
 * Forked from folia-app/folia-contracts: https://github.com/folia-app/folia-contracts
 * Many thanks to Billy Rennekamp <https://github.com/okwme> and Folia <https://www.folia.app/> 💚
 */

pragma solidity ^0.7.0;

import 'openzeppelin-solidity/contracts/token/ERC721/ERC721.sol';
import 'openzeppelin-solidity/contracts/token/ERC20/IERC20.sol';
import 'openzeppelin-solidity/contracts/access/Ownable.sol';
// import "openzeppelin-solidity/contracts/access/AccessControl.sol";
import './Metadata.sol';

contract Seeder is ERC721, Ownable {
  // using Roles for Roles.Role;
  // Roles.Role private _admins;
  // uint8 admins;

  address public metadata;
  address public controller;

  modifier onlyAdminOrController() {
    // require(
    //     (_admins.has(msg.sender) || msg.sender == controller),
    //     "You are not an admin or controller"
    // );
    _;
  }

  constructor(
    string memory name,
    string memory symbol,
    address _metadata
  ) ERC721(name, symbol) {
    metadata = _metadata;
    // _admins.add(msg.sender);
    // admins += 1;
  }

  function mint(
    address recipient,
    uint256 tokenId
  ) public onlyAdminOrController returns (uint256) {
    _mint(recipient, tokenId);
  }

  function burn(uint256 tokenId) public onlyAdminOrController {
    // _burn(ownerOf(tokenId), tokenId);
  }

  function updateMetadata(address _metadata) public onlyAdminOrController {
    metadata = _metadata;
  }

  function updateController(address _controller) public onlyAdminOrController {
    controller = _controller;
  }

  function addAdmin(address _admin) public onlyOwner {
    // _admins.add(_admin);
    // admins += 1;
  }

  function removeAdmin(address _admin) public onlyOwner {
    // require(admins > 1, "Cannot remove the last admin");
    // _admins.remove(_admin);
    // admins -= 1;
  }

  function tokenURI(
    uint256 _tokenId
  ) public view virtual override returns (string memory _infoUrl) {
    return Metadata(metadata).tokenURI(_tokenId);
  }

  /**
   * @dev Moves Token to a certain address.
   * @param _to The address to receive the Token.
   * @param _amount The amount of Token to be transferred.
   * @param _token The address of the Token to be transferred.
   */
  function moveToken(
    address _to,
    uint256 _amount,
    address _token
  ) public onlyAdminOrController returns (bool) {
    require(_amount <= IERC20(_token).balanceOf(address(this)));
    return IERC20(_token).transfer(_to, _amount);
  }
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <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 () 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;
    }
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

/**
 * @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations.
 *
 * These functions can be used to verify that a message was signed by the holder
 * of the private keys of a given address.
 */
library ECDSA {
    /**
     * @dev Returns the address that signed a hashed message (`hash`) with
     * `signature`. This address can then be used for verification purposes.
     *
     * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
     * this function rejects them by requiring the `s` value to be in the lower
     * half order, and the `v` value to be either 27 or 28.
     *
     * IMPORTANT: `hash` _must_ be the result of a hash operation for the
     * verification to be secure: it is possible to craft signatures that
     * recover to arbitrary addresses for non-hashed data. A safe way to ensure
     * this is by receiving a hash of the original message (which may otherwise
     * be too long), and then calling {toEthSignedMessageHash} on it.
     */
    function recover(bytes32 hash, bytes memory signature) internal pure returns (address) {
        // Check the signature length
        if (signature.length != 65) {
            revert("ECDSA: invalid signature length");
        }

        // Divide the signature in r, s and v variables
        bytes32 r;
        bytes32 s;
        uint8 v;

        // ecrecover takes the signature parameters, and the only way to get them
        // currently is to use assembly.
        // solhint-disable-next-line no-inline-assembly
        assembly {
            r := mload(add(signature, 0x20))
            s := mload(add(signature, 0x40))
            v := byte(0, mload(add(signature, 0x60)))
        }

        return recover(hash, v, r, s);
    }

    /**
     * @dev Overload of {ECDSA-recover-bytes32-bytes-} that receives the `v`,
     * `r` and `s` signature fields separately.
     */
    function recover(bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal pure returns (address) {
        // EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature
        // unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines
        // the valid range for s in (281): 0 < s < secp256k1n ÷ 2 + 1, and for v in (282): v ∈ {27, 28}. Most
        // signatures from current libraries generate a unique signature with an s-value in the lower half order.
        //
        // If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value
        // with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or
        // vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept
        // these malleable signatures as well.
        require(uint256(s) <= 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0, "ECDSA: invalid signature 's' value");
        require(v == 27 || v == 28, "ECDSA: invalid signature 'v' value");

        // If the signature is valid (and not malleable), return the signer address
        address signer = ecrecover(hash, v, r, s);
        require(signer != address(0), "ECDSA: invalid signature");

        return signer;
    }

    /**
     * @dev Returns an Ethereum Signed Message, created from a `hash`. This
     * replicates the behavior of the
     * https://github.com/ethereum/wiki/wiki/JSON-RPC#eth_sign[`eth_sign`]
     * JSON-RPC method.
     *
     * See {recover}.
     */
    function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32) {
        // 32 is the length in bytes of hash,
        // enforced by the type signature above
        return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n32", hash));
    }
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

import "./IERC165.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;
    }
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <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

pragma solidity >=0.6.0 <0.8.0;

/**
 * @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;
    }
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

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

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

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

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

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

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

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

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

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

import "../../utils/Context.sol";
import "./IERC721.sol";
import "./IERC721Metadata.sol";
import "./IERC721Enumerable.sol";
import "./IERC721Receiver.sol";
import "../../introspection/ERC165.sol";
import "../../math/SafeMath.sol";
import "../../utils/Address.sol";
import "../../utils/EnumerableSet.sol";
import "../../utils/EnumerableMap.sol";
import "../../utils/Strings.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 { }
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.2 <0.8.0;

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

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

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

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

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

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

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

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

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

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

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

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

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

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.2 <0.8.0;

import "./IERC721.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);
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.2 <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

pragma solidity >=0.6.0 <0.8.0;

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

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.2 <0.8.0;

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

        uint256 size;
        // 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);
            }
        }
    }
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <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 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 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;
    }
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

/**
 * @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))));
    }
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

/**
 * @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));
    }
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <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 () internal {
        _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;
    }
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

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

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

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

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"string","name":"name","type":"string"},{"internalType":"string","name":"symbol","type":"string"},{"internalType":"address","name":"_metadata","type":"address"},{"internalType":"address","name":"_admin","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"approved","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"operator","type":"address"},{"indexed":false,"internalType":"bool","name":"approved","type":"bool"}],"name":"ApprovalForAll","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[],"name":"admin","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"approve","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"baseURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"burn","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"controller","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getApproved","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"operator","type":"address"}],"name":"isApprovedForAll","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"metadata","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"mint","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"ownerOf","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"},{"internalType":"address","name":"_token","type":"address"}],"name":"recoverERC20","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"bool","name":"approved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"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":"_infoUrl","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":"_admin","type":"address"}],"name":"updateAdmin","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_controller","type":"address"}],"name":"updateController","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_metadata","type":"address"}],"name":"updateMetadata","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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

0x608060405234801561001057600080fd5b50600436106101cf5760003560e01c80636c0360eb11610104578063b88d4fde116100a2578063e985e9c511610071578063e985e9c514610aee578063f2fde38b14610b68578063f77c479114610bac578063f851a44014610be0576101cf565b8063b88d4fde146108ba578063c5e2a7db146109bf578063c87b56dd14610a03578063e2f273bd14610aaa576101cf565b80638da5cb5b116100de5780638da5cb5b1461072f57806395d89b4114610763578063a22cb465146107e6578063b51609b414610836576101cf565b80636c0360eb1461064a57806370a08231146106cd578063715018a614610725576101cf565b80632f745c591161017157806342842e0e1161014b57806342842e0e1461051457806342966c68146105825780634f6ccce7146105b05780636352211e146105f2576101cf565b80632f745c5914610430578063392f37e91461049257806340c10f19146104c6576101cf565b8063081812fc116101ad578063081812fc146102fe578063095ea7b31461035657806318160ddd146103a457806323b872dd146103c2576101cf565b806301ffc9a7146101d457806306cb5b661461023757806306fdde031461027b575b600080fd5b61021f600480360360208110156101ea57600080fd5b8101908080357bffffffffffffffffffffffffffffffffffffffffffffffffffffffff19169060200190929190505050610c14565b60405180821515815260200191505060405180910390f35b6102796004803603602081101561024d57600080fd5b81019080803573ffffffffffffffffffffffffffffffffffffffff169060200190929190505050610c7b565b005b610283610dbd565b6040518080602001828103825283818151815260200191508051906020019080838360005b838110156102c35780820151818401526020810190506102a8565b50505050905090810190601f1680156102f05780820380516001836020036101000a031916815260200191505b509250505060405180910390f35b61032a6004803603602081101561031457600080fd5b8101908080359060200190929190505050610e5f565b604051808273ffffffffffffffffffffffffffffffffffffffff16815260200191505060405180910390f35b6103a26004803603604081101561036c57600080fd5b81019080803573ffffffffffffffffffffffffffffffffffffffff16906020019092919080359060200190929190505050610efa565b005b6103ac61103e565b6040518082815260200191505060405180910390f35b61042e600480360360608110156103d857600080fd5b81019080803573ffffffffffffffffffffffffffffffffffffffff169060200190929190803573ffffffffffffffffffffffffffffffffffffffff1690602001909291908035906020019092919050505061104f565b005b61047c6004803603604081101561044657600080fd5b81019080803573ffffffffffffffffffffffffffffffffffffffff169060200190929190803590602001909291905050506110c5565b6040518082815260200191505060405180910390f35b61049a611120565b604051808273ffffffffffffffffffffffffffffffffffffffff16815260200191505060405180910390f35b610512600480360360408110156104dc57600080fd5b81019080803573ffffffffffffffffffffffffffffffffffffffff16906020019092919080359060200190929190505050611146565b005b6105806004803603606081101561052a57600080fd5b81019080803573ffffffffffffffffffffffffffffffffffffffff169060200190929190803573ffffffffffffffffffffffffffffffffffffffff16906020019092919080359060200190929190505050611252565b005b6105ae6004803603602081101561059857600080fd5b8101908080359060200190929190505050611272565b005b6105dc600480360360208110156105c657600080fd5b810190808035906020019092919050505061137c565b6040518082815260200191505060405180910390f35b61061e6004803603602081101561060857600080fd5b810190808035906020019092919050505061139f565b604051808273ffffffffffffffffffffffffffffffffffffffff16815260200191505060405180910390f35b6106526113d6565b6040518080602001828103825283818151815260200191508051906020019080838360005b83811015610692578082015181840152602081019050610677565b50505050905090810190601f1680156106bf5780820380516001836020036101000a031916815260200191505b509250505060405180910390f35b61070f600480360360208110156106e357600080fd5b81019080803573ffffffffffffffffffffffffffffffffffffffff169060200190929190505050611478565b6040518082815260200191505060405180910390f35b61072d61154d565b005b6107376116bd565b604051808273ffffffffffffffffffffffffffffffffffffffff16815260200191505060405180910390f35b61076b6116e7565b6040518080602001828103825283818151815260200191508051906020019080838360005b838110156107ab578082015181840152602081019050610790565b50505050905090810190601f1680156107d85780820380516001836020036101000a031916815260200191505b509250505060405180910390f35b610834600480360360408110156107fc57600080fd5b81019080803573ffffffffffffffffffffffffffffffffffffffff169060200190929190803515159060200190929190505050611789565b005b6108a26004803603606081101561084c57600080fd5b81019080803573ffffffffffffffffffffffffffffffffffffffff16906020019092919080359060200190929190803573ffffffffffffffffffffffffffffffffffffffff16906020019092919050505061193f565b60405180821515815260200191505060405180910390f35b6109bd600480360360808110156108d057600080fd5b81019080803573ffffffffffffffffffffffffffffffffffffffff169060200190929190803573ffffffffffffffffffffffffffffffffffffffff169060200190929190803590602001909291908035906020019064010000000081111561093757600080fd5b82018360208201111561094957600080fd5b8035906020019184600183028401116401000000008311171561096b57600080fd5b91908080601f016020809104026020016040519081016040528093929190818152602001838380828437600081840152601f19601f820116905080830192505050505050509192919290505050611b53565b005b610a01600480360360208110156109d557600080fd5b81019080803573ffffffffffffffffffffffffffffffffffffffff169060200190929190505050611bcb565b005b610a2f60048036036020811015610a1957600080fd5b8101908080359060200190929190505050611d0d565b6040518080602001828103825283818151815260200191508051906020019080838360005b83811015610a6f578082015181840152602081019050610a54565b50505050905090810190601f168015610a9c5780820380516001836020036101000a031916815260200191505b509250505060405180910390f35b610aec60048036036020811015610ac057600080fd5b81019080803573ffffffffffffffffffffffffffffffffffffffff169060200190929190505050611e82565b005b610b5060048036036040811015610b0457600080fd5b81019080803573ffffffffffffffffffffffffffffffffffffffff169060200190929190803573ffffffffffffffffffffffffffffffffffffffff169060200190929190505050611f75565b60405180821515815260200191505060405180910390f35b610baa60048036036020811015610b7e57600080fd5b81019080803573ffffffffffffffffffffffffffffffffffffffff169060200190929190505050612009565b005b610bb46121fe565b604051808273ffffffffffffffffffffffffffffffffffffffff16815260200191505060405180910390f35b610be8612224565b604051808273ffffffffffffffffffffffffffffffffffffffff16815260200191505060405180910390f35b6000806000837bffffffffffffffffffffffffffffffffffffffffffffffffffffffff19167bffffffffffffffffffffffffffffffffffffffffffffffffffffffff1916815260200190815260200160002060009054906101000a900460ff169050919050565b600c60009054906101000a900473ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff163373ffffffffffffffffffffffffffffffffffffffff161480610d245750600d60009054906101000a900473ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff163373ffffffffffffffffffffffffffffffffffffffff16145b610d79576040517f08c379a00000000000000000000000000000000000000000000000000000000081526004018080602001828103825260318152602001806138426031913960400191505060405180910390fd5b80600c60006101000a81548173ffffffffffffffffffffffffffffffffffffffff021916908373ffffffffffffffffffffffffffffffffffffffff16021790555050565b606060068054600181600116156101000203166002900480601f016020809104026020016040519081016040528092919081815260200182805460018160011615610100020316600290048015610e555780601f10610e2a57610100808354040283529160200191610e55565b820191906000526020600020905b815481529060010190602001808311610e3857829003601f168201915b5050505050905090565b6000610e6a8261224a565b610ebf576040517f08c379a000000000000000000000000000000000000000000000000000000000815260040180806020018281038252602c815260200180613873602c913960400191505060405180910390fd5b6004600083815260200190815260200160002060009054906101000a900473ffffffffffffffffffffffffffffffffffffffff169050919050565b6000610f058261139f565b90508073ffffffffffffffffffffffffffffffffffffffff168373ffffffffffffffffffffffffffffffffffffffff161415610f8c576040517f08c379a00000000000000000000000000000000000000000000000000000000081526004018080602001828103825260218152602001806138c86021913960400191505060405180910390fd5b8073ffffffffffffffffffffffffffffffffffffffff16610fab612267565b73ffffffffffffffffffffffffffffffffffffffff161480610fda5750610fd981610fd4612267565b611f75565b5b61102f576040517f08c379a00000000000000000000000000000000000000000000000000000000081526004018080602001828103825260388152602001806137956038913960400191505060405180910390fd5b611039838361226f565b505050565b600061104a6002612328565b905090565b61106061105a612267565b8261233d565b6110b5576040517f08c379a00000000000000000000000000000000000000000000000000000000081526004018080602001828103825260318152602001806138e96031913960400191505060405180910390fd5b6110c0838383612431565b505050565b600061111882600160008673ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff16815260200190815260200160002061267490919063ffffffff16565b905092915050565b600b60009054906101000a900473ffffffffffffffffffffffffffffffffffffffff1681565b600c60009054906101000a900473ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff163373ffffffffffffffffffffffffffffffffffffffff1614806111ef5750600d60009054906101000a900473ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff163373ffffffffffffffffffffffffffffffffffffffff16145b611244576040517f08c379a00000000000000000000000000000000000000000000000000000000081526004018080602001828103825260318152602001806138426031913960400191505060405180910390fd5b61124e828261268e565b5050565b61126d83838360405180602001604052806000815250611b53565b505050565b600c60009054906101000a900473ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff163373ffffffffffffffffffffffffffffffffffffffff16148061131b5750600d60009054906101000a900473ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff163373ffffffffffffffffffffffffffffffffffffffff16145b611370576040517f08c379a00000000000000000000000000000000000000000000000000000000081526004018080602001828103825260318152602001806138426031913960400191505060405180910390fd5b611379816126ac565b50565b6000806113938360026127e690919063ffffffff16565b50905080915050919050565b60006113cf826040518060600160405280602981526020016137f76029913960026128129092919063ffffffff16565b9050919050565b606060098054600181600116156101000203166002900480601f01602080910402602001604051908101604052809291908181526020018280546001816001161561010002031660029004801561146e5780601f106114435761010080835404028352916020019161146e565b820191906000526020600020905b81548152906001019060200180831161145157829003601f168201915b5050505050905090565b60008073ffffffffffffffffffffffffffffffffffffffff168273ffffffffffffffffffffffffffffffffffffffff1614156114ff576040517f08c379a000000000000000000000000000000000000000000000000000000000815260040180806020018281038252602a8152602001806137cd602a913960400191505060405180910390fd5b611546600160008473ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff168152602001908152602001600020612831565b9050919050565b611555612267565b73ffffffffffffffffffffffffffffffffffffffff166115736116bd565b73ffffffffffffffffffffffffffffffffffffffff16146115fc576040517f08c379a00000000000000000000000000000000000000000000000000000000081526004018080602001828103825260208152602001807f4f776e61626c653a2063616c6c6572206973206e6f7420746865206f776e657281525060200191505060405180910390fd5b600073ffffffffffffffffffffffffffffffffffffffff16600a60009054906101000a900473ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff167f8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e060405160405180910390a36000600a60006101000a81548173ffffffffffffffffffffffffffffffffffffffff021916908373ffffffffffffffffffffffffffffffffffffffff160217905550565b6000600a60009054906101000a900473ffffffffffffffffffffffffffffffffffffffff16905090565b606060078054600181600116156101000203166002900480601f01602080910402602001604051908101604052809291908181526020018280546001816001161561010002031660029004801561177f5780601f106117545761010080835404028352916020019161177f565b820191906000526020600020905b81548152906001019060200180831161176257829003601f168201915b5050505050905090565b611791612267565b73ffffffffffffffffffffffffffffffffffffffff168273ffffffffffffffffffffffffffffffffffffffff161415611832576040517f08c379a00000000000000000000000000000000000000000000000000000000081526004018080602001828103825260198152602001807f4552433732313a20617070726f766520746f2063616c6c65720000000000000081525060200191505060405180910390fd5b806005600061183f612267565b73ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff16815260200190815260200160002060008473ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff16815260200190815260200160002060006101000a81548160ff0219169083151502179055508173ffffffffffffffffffffffffffffffffffffffff166118ec612267565b73ffffffffffffffffffffffffffffffffffffffff167f17307eab39ab6107e8899845ad3d59bd9653f200f220920489ca2b5937696c318360405180821515815260200191505060405180910390a35050565b6000611949612267565b73ffffffffffffffffffffffffffffffffffffffff166119676116bd565b73ffffffffffffffffffffffffffffffffffffffff16146119f0576040517f08c379a00000000000000000000000000000000000000000000000000000000081526004018080602001828103825260208152602001807f4f776e61626c653a2063616c6c6572206973206e6f7420746865206f776e657281525060200191505060405180910390fd5b8173ffffffffffffffffffffffffffffffffffffffff166370a08231306040518263ffffffff1660e01b8152600401808273ffffffffffffffffffffffffffffffffffffffff16815260200191505060206040518083038186803b158015611a5757600080fd5b505afa158015611a6b573d6000803e3d6000fd5b505050506040513d6020811015611a8157600080fd5b8101908080519060200190929190505050831115611a9e57600080fd5b8173ffffffffffffffffffffffffffffffffffffffff1663a9059cbb85856040518363ffffffff1660e01b8152600401808373ffffffffffffffffffffffffffffffffffffffff16815260200182815260200192505050602060405180830381600087803b158015611b0f57600080fd5b505af1158015611b23573d6000803e3d6000fd5b505050506040513d6020811015611b3957600080fd5b810190808051906020019092919050505090509392505050565b611b64611b5e612267565b8361233d565b611bb9576040517f08c379a00000000000000000000000000000000000000000000000000000000081526004018080602001828103825260318152602001806138e96031913960400191505060405180910390fd5b611bc584848484612846565b50505050565b600c60009054906101000a900473ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff163373ffffffffffffffffffffffffffffffffffffffff161480611c745750600d60009054906101000a900473ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff163373ffffffffffffffffffffffffffffffffffffffff16145b611cc9576040517f08c379a00000000000000000000000000000000000000000000000000000000081526004018080602001828103825260318152602001806138426031913960400191505060405180910390fd5b80600b60006101000a81548173ffffffffffffffffffffffffffffffffffffffff021916908373ffffffffffffffffffffffffffffffffffffffff16021790555050565b6060600b60009054906101000a900473ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff1663c87b56dd836040518263ffffffff1660e01b81526004018082815260200191505060006040518083038186803b158015611d8257600080fd5b505afa158015611d96573d6000803e3d6000fd5b505050506040513d6000823e3d601f19601f820116820180604052506020811015611dc057600080fd5b8101908080516040519392919084640100000000821115611de057600080fd5b83820191506020820185811115611df657600080fd5b8251866001820283011164010000000082111715611e1357600080fd5b8083526020830192505050908051906020019080838360005b83811015611e47578082015181840152602081019050611e2c565b50505050905090810190601f168015611e745780820380516001836020036101000a031916815260200191505b506040525050509050919050565b611e8a612267565b73ffffffffffffffffffffffffffffffffffffffff16611ea86116bd565b73ffffffffffffffffffffffffffffffffffffffff1614611f31576040517f08c379a00000000000000000000000000000000000000000000000000000000081526004018080602001828103825260208152602001807f4f776e61626c653a2063616c6c6572206973206e6f7420746865206f776e657281525060200191505060405180910390fd5b80600d60006101000a81548173ffffffffffffffffffffffffffffffffffffffff021916908373ffffffffffffffffffffffffffffffffffffffff16021790555050565b6000600560008473ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff16815260200190815260200160002060008373ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff16815260200190815260200160002060009054906101000a900460ff16905092915050565b612011612267565b73ffffffffffffffffffffffffffffffffffffffff1661202f6116bd565b73ffffffffffffffffffffffffffffffffffffffff16146120b8576040517f08c379a00000000000000000000000000000000000000000000000000000000081526004018080602001828103825260208152602001807f4f776e61626c653a2063616c6c6572206973206e6f7420746865206f776e657281525060200191505060405180910390fd5b600073ffffffffffffffffffffffffffffffffffffffff168173ffffffffffffffffffffffffffffffffffffffff16141561213e576040517f08c379a00000000000000000000000000000000000000000000000000000000081526004018080602001828103825260268152602001806136f96026913960400191505060405180910390fd5b8073ffffffffffffffffffffffffffffffffffffffff16600a60009054906101000a900473ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff167f8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e060405160405180910390a380600a60006101000a81548173ffffffffffffffffffffffffffffffffffffffff021916908373ffffffffffffffffffffffffffffffffffffffff16021790555050565b600c60009054906101000a900473ffffffffffffffffffffffffffffffffffffffff1681565b600d60009054906101000a900473ffffffffffffffffffffffffffffffffffffffff1681565b60006122608260026128b890919063ffffffff16565b9050919050565b600033905090565b816004600083815260200190815260200160002060006101000a81548173ffffffffffffffffffffffffffffffffffffffff021916908373ffffffffffffffffffffffffffffffffffffffff160217905550808273ffffffffffffffffffffffffffffffffffffffff166122e28361139f565b73ffffffffffffffffffffffffffffffffffffffff167f8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b92560405160405180910390a45050565b6000612336826000016128d2565b9050919050565b60006123488261224a565b61239d576040517f08c379a000000000000000000000000000000000000000000000000000000000815260040180806020018281038252602c815260200180613769602c913960400191505060405180910390fd5b60006123a88361139f565b90508073ffffffffffffffffffffffffffffffffffffffff168473ffffffffffffffffffffffffffffffffffffffff16148061241757508373ffffffffffffffffffffffffffffffffffffffff166123ff84610e5f565b73ffffffffffffffffffffffffffffffffffffffff16145b8061242857506124278185611f75565b5b91505092915050565b8273ffffffffffffffffffffffffffffffffffffffff166124518261139f565b73ffffffffffffffffffffffffffffffffffffffff16146124bd576040517f08c379a000000000000000000000000000000000000000000000000000000000815260040180806020018281038252602981526020018061389f6029913960400191505060405180910390fd5b600073ffffffffffffffffffffffffffffffffffffffff168273ffffffffffffffffffffffffffffffffffffffff161415612543576040517f08c379a000000000000000000000000000000000000000000000000000000000815260040180806020018281038252602481526020018061371f6024913960400191505060405180910390fd5b61254e8383836128e3565b61255960008261226f565b6125aa81600160008673ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff1681526020019081526020016000206128e890919063ffffffff16565b506125fc81600160008573ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff16815260200190815260200160002061290290919063ffffffff16565b506126138183600261291c9092919063ffffffff16565b50808273ffffffffffffffffffffffffffffffffffffffff168473ffffffffffffffffffffffffffffffffffffffff167fddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef60405160405180910390a4505050565b60006126838360000183612951565b60001c905092915050565b6126a88282604051806020016040528060008152506129d4565b5050565b60006126b78261139f565b90506126c5816000846128e3565b6126d060008361226f565b6000600860008481526020019081526020016000208054600181600116156101000203166002900490501461271f5760086000838152602001908152602001600020600061271e919061363f565b5b61277082600160008473ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff1681526020019081526020016000206128e890919063ffffffff16565b50612785826002612a4590919063ffffffff16565b5081600073ffffffffffffffffffffffffffffffffffffffff168273ffffffffffffffffffffffffffffffffffffffff167fddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef60405160405180910390a45050565b6000806000806127f98660000186612a5f565b915091508160001c8160001c9350935050509250929050565b6000612825846000018460001b84612af8565b60001c90509392505050565b600061283f82600001612bee565b9050919050565b612851848484612431565b61285d84848484612bff565b6128b2576040517f08c379a00000000000000000000000000000000000000000000000000000000081526004018080602001828103825260328152602001806136c76032913960400191505060405180910390fd5b50505050565b60006128ca836000018360001b612e18565b905092915050565b600081600001805490509050919050565b505050565b60006128fa836000018360001b612e3b565b905092915050565b6000612914836000018360001b612f23565b905092915050565b6000612948846000018460001b8473ffffffffffffffffffffffffffffffffffffffff1660001b612f93565b90509392505050565b6000818360000180549050116129b2576040517f08c379a00000000000000000000000000000000000000000000000000000000081526004018080602001828103825260228152602001806136a56022913960400191505060405180910390fd5b8260000182815481106129c157fe5b9060005260206000200154905092915050565b6129de838361306f565b6129eb6000848484612bff565b612a40576040517f08c379a00000000000000000000000000000000000000000000000000000000081526004018080602001828103825260328152602001806136c76032913960400191505060405180910390fd5b505050565b6000612a57836000018360001b613263565b905092915050565b60008082846000018054905011612ac1576040517f08c379a00000000000000000000000000000000000000000000000000000000081526004018080602001828103825260228152602001806138206022913960400191505060405180910390fd5b6000846000018481548110612ad257fe5b906000526020600020906002020190508060000154816001015492509250509250929050565b60008084600101600085815260200190815260200160002054905060008114158390612bbf576040517f08c379a00000000000000000000000000000000000000000000000000000000081526004018080602001828103825283818151815260200191508051906020019080838360005b83811015612b84578082015181840152602081019050612b69565b50505050905090810190601f168015612bb15780820380516001836020036101000a031916815260200191505b509250505060405180910390fd5b50846000016001820381548110612bd257fe5b9060005260206000209060020201600101549150509392505050565b600081600001805490509050919050565b6000612c208473ffffffffffffffffffffffffffffffffffffffff1661337c565b612c2d5760019050612e10565b6060612d9763150b7a0260e01b612c42612267565b888787604051602401808573ffffffffffffffffffffffffffffffffffffffff1681526020018473ffffffffffffffffffffffffffffffffffffffff16815260200183815260200180602001828103825283818151815260200191508051906020019080838360005b83811015612cc6578082015181840152602081019050612cab565b50505050905090810190601f168015612cf35780820380516001836020036101000a031916815260200191505b5095505050505050604051602081830303815290604052907bffffffffffffffffffffffffffffffffffffffffffffffffffffffff19166020820180517bffffffffffffffffffffffffffffffffffffffffffffffffffffffff83818316178352505050506040518060600160405280603281526020016136c7603291398773ffffffffffffffffffffffffffffffffffffffff1661338f9092919063ffffffff16565b90506000818060200190516020811015612db057600080fd5b8101908080519060200190929190505050905063150b7a0260e01b7bffffffffffffffffffffffffffffffffffffffffffffffffffffffff1916817bffffffffffffffffffffffffffffffffffffffffffffffffffffffff191614925050505b949350505050565b600080836001016000848152602001908152602001600020541415905092915050565b60008083600101600084815260200190815260200160002054905060008114612f175760006001820390506000600186600001805490500390506000866000018281548110612e8657fe5b9060005260206000200154905080876000018481548110612ea357fe5b9060005260206000200181905550600183018760010160008381526020019081526020016000208190555086600001805480612edb57fe5b60019003818190600052602060002001600090559055866001016000878152602001908152602001600020600090556001945050505050612f1d565b60009150505b92915050565b6000612f2f83836133a7565b612f88578260000182908060018154018082558091505060019003906000526020600020016000909190919091505582600001805490508360010160008481526020019081526020016000208190555060019050612f8d565b600090505b92915050565b600080846001016000858152602001908152602001600020549050600081141561303a57846000016040518060400160405280868152602001858152509080600181540180825580915050600190039060005260206000209060020201600090919091909150600082015181600001556020820151816001015550508460000180549050856001016000868152602001908152602001600020819055506001915050613068565b8285600001600183038154811061304d57fe5b90600052602060002090600202016001018190555060009150505b9392505050565b600073ffffffffffffffffffffffffffffffffffffffff168273ffffffffffffffffffffffffffffffffffffffff161415613112576040517f08c379a00000000000000000000000000000000000000000000000000000000081526004018080602001828103825260208152602001807f4552433732313a206d696e7420746f20746865207a65726f206164647265737381525060200191505060405180910390fd5b61311b8161224a565b1561318e576040517f08c379a000000000000000000000000000000000000000000000000000000000815260040180806020018281038252601c8152602001807f4552433732313a20746f6b656e20616c7265616479206d696e7465640000000081525060200191505060405180910390fd5b61319a600083836128e3565b6131eb81600160008573ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff16815260200190815260200160002061290290919063ffffffff16565b506132028183600261291c9092919063ffffffff16565b50808273ffffffffffffffffffffffffffffffffffffffff16600073ffffffffffffffffffffffffffffffffffffffff167fddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef60405160405180910390a45050565b6000808360010160008481526020019081526020016000205490506000811461337057600060018203905060006001866000018054905003905060008660000182815481106132ae57fe5b90600052602060002090600202019050808760000184815481106132ce57fe5b906000526020600020906002020160008201548160000155600182015481600101559050506001830187600101600083600001548152602001908152602001600020819055508660000180548061332157fe5b6001900381819060005260206000209060020201600080820160009055600182016000905550509055866001016000878152602001908152602001600020600090556001945050505050613376565b60009150505b92915050565b600080823b905060008111915050919050565b606061339e84846000856133ca565b90509392505050565b600080836001016000848152602001908152602001600020541415905092915050565b606082471015613425576040517f08c379a00000000000000000000000000000000000000000000000000000000081526004018080602001828103825260268152602001806137436026913960400191505060405180910390fd5b61342e8561337c565b6134a0576040517f08c379a000000000000000000000000000000000000000000000000000000000815260040180806020018281038252601d8152602001807f416464726573733a2063616c6c20746f206e6f6e2d636f6e747261637400000081525060200191505060405180910390fd5b600060608673ffffffffffffffffffffffffffffffffffffffff1685876040518082805190602001908083835b602083106134f057805182526020820191506020810190506020830392506134cd565b6001836020036101000a03801982511681845116808217855250505050505090500191505060006040518083038185875af1925050503d8060008114613552576040519150601f19603f3d011682016040523d82523d6000602084013e613557565b606091505b5091509150613567828286613573565b92505050949350505050565b6060831561358357829050613638565b6000835111156135965782518084602001fd5b816040517f08c379a00000000000000000000000000000000000000000000000000000000081526004018080602001828103825283818151815260200191508051906020019080838360005b838110156135fd5780820151818401526020810190506135e2565b50505050905090810190601f16801561362a5780820380516001836020036101000a031916815260200191505b509250505060405180910390fd5b9392505050565b50805460018160011615610100020316600290046000825580601f106136655750613684565b601f0160209004906000526020600020908101906136839190613687565b5b50565b5b808211156136a0576000816000905550600101613688565b509056fe456e756d657261626c655365743a20696e646578206f7574206f6620626f756e64734552433732313a207472616e7366657220746f206e6f6e20455243373231526563656976657220696d706c656d656e7465724f776e61626c653a206e6577206f776e657220697320746865207a65726f20616464726573734552433732313a207472616e7366657220746f20746865207a65726f2061646472657373416464726573733a20696e73756666696369656e742062616c616e636520666f722063616c6c4552433732313a206f70657261746f7220717565727920666f72206e6f6e6578697374656e7420746f6b656e4552433732313a20617070726f76652063616c6c6572206973206e6f74206f776e6572206e6f7220617070726f76656420666f7220616c6c4552433732313a2062616c616e636520717565727920666f7220746865207a65726f20616464726573734552433732313a206f776e657220717565727920666f72206e6f6e6578697374656e7420746f6b656e456e756d657261626c654d61703a20696e646578206f7574206f6620626f756e64734d75746174696f6e546f6b656e3a20596f7520617265206e6f7420616e2061646d696e206f7220636f6e74726f6c6c65724552433732313a20617070726f76656420717565727920666f72206e6f6e6578697374656e7420746f6b656e4552433732313a207472616e73666572206f6620746f6b656e2074686174206973206e6f74206f776e4552433732313a20617070726f76616c20746f2063757272656e74206f776e65724552433732313a207472616e736665722063616c6c6572206973206e6f74206f776e6572206e6f7220617070726f766564a264697066735822122099a16a6a67672d42ab2a406b353bd15eb8d851826e23c4a73997fec0d47572e764736f6c63430007000033

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

-----Decoded View---------------
Arg [0] : name (string): Mutant Garden Seeder Mutations
Arg [1] : symbol (string): mgsm
Arg [2] : _metadata (address): 0xCB0Bb4d1E2A94b96E17b1A5ad26f3166d7303DdA
Arg [3] : _admin (address): 0x9011Eb570D1bE09eA4d10f38c119DCDF29725c41

-----Encoded View---------------
8 Constructor Arguments found :
Arg [0] : 0000000000000000000000000000000000000000000000000000000000000080
Arg [1] : 00000000000000000000000000000000000000000000000000000000000000c0
Arg [2] : 000000000000000000000000cb0bb4d1e2a94b96e17b1a5ad26f3166d7303dda
Arg [3] : 0000000000000000000000009011eb570d1be09ea4d10f38c119dcdf29725c41
Arg [4] : 000000000000000000000000000000000000000000000000000000000000001e
Arg [5] : 4d7574616e742047617264656e20536565646572204d75746174696f6e730000
Arg [6] : 0000000000000000000000000000000000000000000000000000000000000004
Arg [7] : 6d67736d00000000000000000000000000000000000000000000000000000000