ERC-7085: NFT 关系增强

function setRelationship(uint256 _originalID, uint256 _derivativeID, uint256 _attribute) external;

function setAttribute(uint256 _id, string calldata _name, uint256 _value) external;

function getAttribute(uint256 _id, string calldata _name) external view returns (bytes32);

function getAttributeNames(uint256 _id) external view returns (bytes32[] memory);

function getRelationship(uint256 _originalID, uint256 _derivativeID) external view returns (uint256);

NFTGraph nftContract = NFTGraph(addressOfContract);

// Retrieve the value of an attribute named "Color" for NFT with ID 123
// 检索 ID 为 123 的 NFT 的名为“Color”的属性的值
bytes32 colorValue = nftContract.getAttribute(123, "Color");

// Retrieve the names of all attributes associated with NFT with ID 456
// 检索与 ID 为 456 的 NFT 关联的所有属性的名称
bytes32[] memory attributeNames = nftContract.getAttributeNames(456);

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

import "@openzeppelin/contracts/token/ERC165/IERC165.sol";  // Import IERC165 for interface detection
// 导入 IERC165 以进行接口检测

interface INFTGraph is IERC165 {
    // setRelationship: Establishes relationships between NFTs.
    // setRelationship：建立 NFT 之间的关系。
    function setRelationship(uint256 _originalID, uint256 _derivativeID, uint256 _attribute) external;
    // setAttribute: Sets quantifiable attributes for NFTs.
    // setAttribute：为 NFT 设置可量化的属性。
    function setAttribute(uint256 _id, string calldata _name, uint256 _value) external;
    // getRelationship: Retrieves relationship values between NFTs.
    // getRelationship：检索 NFT 之间的关系值。
    function getRelationship(uint256 _originalID, uint256 _derivativeID) external view returns (uint256);
    // getAttribute: Retrieves the value of specific attributes associated with NFTs.
    // getAttribute：检索与 NFT 关联的特定属性的值。
    function getAttribute(uint256 _id, string calldata _name) external view returns (bytes32);
    // getAttributeNames: Retrieves all attribute names associated with an NFT.
    // getAttributeNames：检索与 NFT 关联的所有属性名称。
    function getAttributeNames(uint256 _id) external view returns (bytes32[] memory);
}

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

import "@openzeppelin/contracts/introspection/ERC165.sol";  // Import ERC165 for interface detection
// 导入 ERC165 以进行接口检测

import "./INFTGraph.sol";  // Import INFTGraph interface
// 导入 INFTGraph 接口

contract NFTGraph is INFTGraph{
    mapping(uint256 => mapping(uint256 => uint256)) public relationship;
    mapping(uint256 => mapping(bytes32 => bytes32)) public attributes;

    // Implement the setRelationship and setAttribute functions as described in the EIP specification.
    // 按照 EIP 规范中所述实现 setRelationship 和 setAttribute 函数。


    // Implement the supportsInterface function for ERC-165.
    // 实现 ERC-165 的 supportsInterface 函数。
    function supportsInterface(bytes4 interfaceID) public view override returns (bool) {
        return interfaceID == type(INFTGraph).interfaceId || super.supportsInterface(interfaceID);
    }

    // Additional implementation details...
    // 附加实现细节...
    function getRelationship(uint256 _originalID, uint256 _derivativeID) external view returns (uint256) {
        return relationship[_originalID][_derivativeID];
    }

    function getAttribute(uint256 _id, string calldata _name) external view returns (bytes32) {
        return bytes32(attributes[_id][_name]);
    }

    function getAttributeNames(uint256 _id) external view returns (bytes32[] memory) {
        bytes32[] memory names = new bytes32[](attributes[_id].length);
        for (uint256 i = 0; i < attributes[_id].length; i++) {
            names[i] = bytes32(attributes[_id][i]);
        }
        return names;
    }

    function setRelationship(uint256 originalNFT, uint256 derivativeNFT, uint256 relationshipValue) public {
        require(originalNFT != derivativeNFT, "Original and derivative NFTs must be different");
        // 需要原始 NFT和派生 NFT 不同
        relationship[originalNFT][derivativeNFT] = relationshipValue;
    }
    
    function setAttribute(uint256 nft, bytes32 attributeName, bytes32 attributeValue) public {
        attributes[nft][attributeName] = attributeValue;
    }

}