MutationMetadataDB

{{
  "language": "Solidity",
  "sources": {
    "contracts/MutationMetadataDB.sol": {
      "content": "// 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;
  }
}
"
    },
    "openzeppelin-solidity/contracts/access/Ownable.sol": {
      "content": "// 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;
    }
}
"
    },
    "openzeppelin-solidity/contracts/utils/Context.sol": {
      "content": "// 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;
    }
}
"
    }
  },
  "settings": {
    "optimizer": {
      "enabled": false,
      "runs": 200
    },
    "outputSelection": {
      "*": {
        "*": [
          "evm.bytecode",
          "evm.deployedBytecode",
          "devdoc",
          "userdoc",
          "metadata",
          "abi"
        ]
      }
    }
  }
}}