+ 
+
+ ))}
+ NFT：#{nft.tokenId.toString()}
+持有者：{nft.seller}
+价格：{nft.price.toString()}MT
+ +持有者：{nft.seller}
+价格：{nft.price.toString()}MT
+ +| 1 +2 +3 +4 +5 +6 +7 +8 +9 +10 +11 +12 +13 +14 +15 | + + + + + + + +6× + + + +1× + + | // SPDX-License-Identifier: MIT
+pragma solidity ^0.8.20;
+
+import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
+
+contract MissopToken is ERC20{
+ constructor() ERC20("MissopToken","MT") {
+ // 初始化给合约 mint 这么多 token
+ _mint(msg.sender, 10000000000*10**6);
+ }
+
+ function decimals()public view virtual override returns (uint8) {
+ return 6;
+ }
+} |
| 1 +2 +3 +4 +5 +6 +7 +8 +9 +10 +11 +12 +13 +14 +15 +16 +17 +18 +19 +20 +21 +22 +23 +24 +25 +26 +27 +28 +29 +30 +31 +32 +33 +34 +35 +36 +37 +38 +39 +40 +41 +42 +43 +44 +45 +46 +47 +48 +49 +50 +51 +52 +53 +54 +55 +56 +57 +58 +59 +60 +61 +62 +63 +64 +65 +66 +67 +68 +69 +70 +71 +72 +73 +74 +75 +76 +77 +78 +79 +80 +81 +82 +83 +84 +85 +86 +87 +88 +89 +90 +91 +92 +93 +94 +95 +96 +97 +98 +99 +100 +101 +102 +103 +104 +105 +106 +107 +108 +109 +110 +111 +112 +113 +114 +115 +116 +117 +118 +119 +120 +121 +122 +123 +124 +125 +126 +127 +128 +129 +130 +131 +132 +133 +134 +135 +136 +137 +138 +139 +140 +141 +142 +143 +144 +145 +146 +147 +148 +149 +150 +151 +152 +153 +154 +155 +156 +157 | + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +3× + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + | // SPDX-License-Identifier: MIT
+pragma solidity ^0.8.20;
+
+import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
+import "@openzeppelin/contracts/token/ERC721/IERC721.sol";
+import "@openzeppelin/contracts/security/ReentrancyGuard.sol"; // 防止双花攻击
+import "hardhat/console.sol";
+
+error NftMarket__NotOwnerOf(string message);
+error NftMarket__NotApproved(string message);
+error NftMarket__NotActive(string message);
+error NftMarket__PaymentFailed(string message);
+error NftMarket__NotExist(string message);
+error NftMarket__IsListed(string message);
+
+contract NftMarket is ReentrancyGuard {
+ struct Listing {
+ address seller;
+ address nftContract;
+ uint256 tokenId;
+ uint256 price;
+ uint256 listTime;
+ string cid;
+ bool isActive;
+ }
+
+ mapping(address => mapping(uint256 => Listing)) public s_listings;
+ uint256[] private s_tokenIds;
+ // Listing[] private s_listArr;
+ IERC20 public immutable i_paymentToken;
+
+ // 上架 nft 事件
+ event NftListed(
+ address indexed seller,
+ uint256 indexed tokenId,
+ address indexed nftContract,
+ uint256 price
+ );
+
+ // nft购买事件
+ event NftPurchased(
+ address indexed buyer,
+ uint256 indexed tokenId,
+ address indexed nftContract,
+ uint256 price
+ );
+
+ event NftUnlisted(
+ address indexed seller,
+ uint256 indexed tokenId,
+ address indexed nftContract
+ );
+
+ constructor(address _paymentToken) {
+ i_paymentToken = IERC20(_paymentToken);
+ }
+
+ function listNft(
+ address _nftContract,
+ uint256 tokenId,
+ uint256 price,
+ string memory cid
+ ) external {
+ IERC721 nft = IERC721(_nftContract);
+ if (nft.ownerOf(tokenId) != msg.sender) {
+ revert NftMarket__NotOwnerOf("not the owner of the NFT");
+ }
+ if (!nft.isApprovedForAll(msg.sender, address(this))) {
+ revert NftMarket__NotApproved("not approved");
+ }
+ if (s_listings[_nftContract][tokenId].isActive) {
+ revert NftMarket__IsListed("NFT already listed");
+ }
+ uint256 listTime = block.timestamp;
+ Listing memory item = Listing(
+ msg.sender,
+ _nftContract,
+ tokenId,
+ price,
+ listTime,
+ cid,
+ true
+ );
+ s_listings[_nftContract][tokenId] = item;
+ s_tokenIds.push(tokenId);
+ // s_listArr.push(item);
+
+ emit NftListed(msg.sender, tokenId, _nftContract, price);
+ }
+
+ function unlistNft(address _nftContract, uint256 _tokenId) external {
+ Listing memory item = s_listings[_nftContract][_tokenId];
+ if (!item.isActive) {
+ revert NftMarket__NotActive("not active");
+ }
+ IERC721 nft = IERC721(_nftContract);
+ if (nft.ownerOf(_tokenId) != msg.sender) {
+ revert NftMarket__NotOwnerOf("not the owner of the NFT");
+ }
+ if (!nft.isApprovedForAll(msg.sender, address(this))) {
+ revert NftMarket__NotApproved("not approved");
+ }
+ item.isActive = false;
+ emit NftUnlisted(msg.sender, _tokenId, _nftContract);
+ }
+
+ function buyNft(address _nftContract, uint256 _tokenId) external {
+ Listing memory listing = s_listings[_nftContract][_tokenId];
+ if (!listing.isActive) {
+ revert NftMarket__NotActive("NFT not active");
+ }
+ IERC721 nft = IERC721(_nftContract);
+ // 将购买人身上的钱转给售卖人
+ if (
+ !i_paymentToken.transferFrom(
+ msg.sender,
+ listing.seller,
+ listing.price
+ )
+ ) {
+ revert NftMarket__PaymentFailed("payment failed");
+ }
+ nft.safeTransferFrom(listing.seller, msg.sender, _tokenId);
+ listing.isActive = false;
+ emit NftPurchased(msg.sender, _tokenId, _nftContract, listing.price);
+ }
+
+ /**
+ *
+ * @dev 从 s_listings 中获取上架的 NFT
+ */
+ function getListsArray(
+ address _nftContract
+ ) public view returns (Listing[] memory) {
+ Listing[] memory listings = new Listing[](s_tokenIds.length);
+ for (uint256 i = 0; i < s_tokenIds.length; i++) {
+ Listing memory item = s_listings[_nftContract][s_tokenIds[i]];
+ listings[i] = item;
+ }
+ return listings;
+ }
+
+ /**
+ * @dev 从数组中获取，对比两者差异
+ */
+ // function getList(
+ // address _nftContract
+ // ) external view returns (Listing[] memory) {
+ // for (uint256 i = 0; i < s_listArr.length; i++) {
+ // Listing memory item = s_listArr[i];
+ // Listing memory listingItem = s_listings[_nftContract][item.tokenId];
+ // item.isActive = listingItem.isActive;
+ // }
+ // return s_listArr;
+ // }
+}
+ |
| 1 +2 +3 +4 +5 +6 +7 +8 +9 +10 +11 +12 +13 +14 +15 +16 +17 +18 +19 +20 +21 +22 | + + + + + + + + + + + +3× + + + +1× +1× +1× + + + | // SPDX-License-Identifier: MIT
+pragma solidity ^0.8.20;
+
+import "@openzeppelin/contracts/token/ERC721/ERC721.sol";
+import "@openzeppelin/contracts/utils/Counters.sol";
+
+contract NftToken is ERC721 {
+ using Counters for Counters.Counter;
+ Counters.Counter private _tokenIdCounter;
+
+ // 每 mint 一个 nft 都需要把 count+1 表示 nft 总数量
+ constructor() ERC721("NftToken", "NT") {
+ _tokenIdCounter.increment();
+ }
+
+ function mint(address to) public {
+ uint256 tokenId = _tokenIdCounter.current();
+ _tokenIdCounter.increment();
+ _safeMint(to, tokenId);
+ }
+}
+ |
| File | ++ | Statements | ++ | Branches | ++ | Functions | ++ | Lines | ++ |
|---|---|---|---|---|---|---|---|---|---|
| MissopToken.sol | +100% | +2/2 | +100% | +0/0 | +100% | +2/2 | +100% | +2/2 | +|
| NftMarket.sol | +0% | +0/24 | +0% | +0/16 | +20% | +1/5 | +2.7% | +1/37 | +|
| NftToken.sol | +100% | +4/4 | +100% | +0/0 | +100% | +2/2 | +100% | +4/4 | +
| File | ++ | Statements | ++ | Branches | ++ | Functions | ++ | Lines | ++ |
|---|---|---|---|---|---|---|---|---|---|
| contracts/ | +20% | +6/30 | +0% | +0/16 | +55.56% | +5/9 | +16.28% | +7/43 | +
| 1 +2 +3 +4 +5 +6 +7 +8 +9 +10 +11 +12 +13 +14 +15 | + + + + + + + +6× + + + +1× + + | // SPDX-License-Identifier: MIT
+pragma solidity ^0.8.20;
+
+import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
+
+contract MissopToken is ERC20{
+ constructor() ERC20("MissopToken","MT") {
+ // 初始化给合约 mint 这么多 token
+ _mint(msg.sender, 10000000000*10**6);
+ }
+
+ function decimals()public view virtual override returns (uint8) {
+ return 6;
+ }
+} |
| 1 +2 +3 +4 +5 +6 +7 +8 +9 +10 +11 +12 +13 +14 +15 +16 +17 +18 +19 +20 +21 +22 +23 +24 +25 +26 +27 +28 +29 +30 +31 +32 +33 +34 +35 +36 +37 +38 +39 +40 +41 +42 +43 +44 +45 +46 +47 +48 +49 +50 +51 +52 +53 +54 +55 +56 +57 +58 +59 +60 +61 +62 +63 +64 +65 +66 +67 +68 +69 +70 +71 +72 +73 +74 +75 +76 +77 +78 +79 +80 +81 +82 +83 +84 +85 +86 +87 +88 +89 +90 +91 +92 +93 +94 +95 +96 +97 +98 +99 +100 +101 +102 +103 +104 +105 +106 +107 +108 +109 +110 +111 +112 +113 +114 +115 +116 +117 +118 +119 +120 +121 +122 +123 +124 +125 +126 +127 +128 +129 +130 +131 +132 +133 +134 +135 +136 +137 +138 +139 +140 +141 +142 +143 +144 +145 +146 +147 +148 +149 +150 +151 +152 +153 +154 +155 +156 +157 | + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +3× + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + | // SPDX-License-Identifier: MIT
+pragma solidity ^0.8.20;
+
+import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
+import "@openzeppelin/contracts/token/ERC721/IERC721.sol";
+import "@openzeppelin/contracts/security/ReentrancyGuard.sol"; // 防止双花攻击
+import "hardhat/console.sol";
+
+error NftMarket__NotOwnerOf(string message);
+error NftMarket__NotApproved(string message);
+error NftMarket__NotActive(string message);
+error NftMarket__PaymentFailed(string message);
+error NftMarket__NotExist(string message);
+error NftMarket__IsListed(string message);
+
+contract NftMarket is ReentrancyGuard {
+ struct Listing {
+ address seller;
+ address nftContract;
+ uint256 tokenId;
+ uint256 price;
+ uint256 listTime;
+ string cid;
+ bool isActive;
+ }
+
+ mapping(address => mapping(uint256 => Listing)) public s_listings;
+ uint256[] private s_tokenIds;
+ // Listing[] private s_listArr;
+ IERC20 public immutable i_paymentToken;
+
+ // 上架 nft 事件
+ event NftListed(
+ address indexed seller,
+ uint256 indexed tokenId,
+ address indexed nftContract,
+ uint256 price
+ );
+
+ // nft购买事件
+ event NftPurchased(
+ address indexed buyer,
+ uint256 indexed tokenId,
+ address indexed nftContract,
+ uint256 price
+ );
+
+ event NftUnlisted(
+ address indexed seller,
+ uint256 indexed tokenId,
+ address indexed nftContract
+ );
+
+ constructor(address _paymentToken) {
+ i_paymentToken = IERC20(_paymentToken);
+ }
+
+ function listNft(
+ address _nftContract,
+ uint256 tokenId,
+ uint256 price,
+ string memory cid
+ ) external {
+ IERC721 nft = IERC721(_nftContract);
+ if (nft.ownerOf(tokenId) != msg.sender) {
+ revert NftMarket__NotOwnerOf("not the owner of the NFT");
+ }
+ if (!nft.isApprovedForAll(msg.sender, address(this))) {
+ revert NftMarket__NotApproved("not approved");
+ }
+ if (s_listings[_nftContract][tokenId].isActive) {
+ revert NftMarket__IsListed("NFT already listed");
+ }
+ uint256 listTime = block.timestamp;
+ Listing memory item = Listing(
+ msg.sender,
+ _nftContract,
+ tokenId,
+ price,
+ listTime,
+ cid,
+ true
+ );
+ s_listings[_nftContract][tokenId] = item;
+ s_tokenIds.push(tokenId);
+ // s_listArr.push(item);
+
+ emit NftListed(msg.sender, tokenId, _nftContract, price);
+ }
+
+ function unlistNft(address _nftContract, uint256 _tokenId) external {
+ Listing memory item = s_listings[_nftContract][_tokenId];
+ if (!item.isActive) {
+ revert NftMarket__NotActive("not active");
+ }
+ IERC721 nft = IERC721(_nftContract);
+ if (nft.ownerOf(_tokenId) != msg.sender) {
+ revert NftMarket__NotOwnerOf("not the owner of the NFT");
+ }
+ if (!nft.isApprovedForAll(msg.sender, address(this))) {
+ revert NftMarket__NotApproved("not approved");
+ }
+ item.isActive = false;
+ emit NftUnlisted(msg.sender, _tokenId, _nftContract);
+ }
+
+ function buyNft(address _nftContract, uint256 _tokenId) external {
+ Listing memory listing = s_listings[_nftContract][_tokenId];
+ if (!listing.isActive) {
+ revert NftMarket__NotActive("NFT not active");
+ }
+ IERC721 nft = IERC721(_nftContract);
+ // 将购买人身上的钱转给售卖人
+ if (
+ !i_paymentToken.transferFrom(
+ msg.sender,
+ listing.seller,
+ listing.price
+ )
+ ) {
+ revert NftMarket__PaymentFailed("payment failed");
+ }
+ nft.safeTransferFrom(listing.seller, msg.sender, _tokenId);
+ listing.isActive = false;
+ emit NftPurchased(msg.sender, _tokenId, _nftContract, listing.price);
+ }
+
+ /**
+ *
+ * @dev 从 s_listings 中获取上架的 NFT
+ */
+ function getListsArray(
+ address _nftContract
+ ) public view returns (Listing[] memory) {
+ Listing[] memory listings = new Listing[](s_tokenIds.length);
+ for (uint256 i = 0; i < s_tokenIds.length; i++) {
+ Listing memory item = s_listings[_nftContract][s_tokenIds[i]];
+ listings[i] = item;
+ }
+ return listings;
+ }
+
+ /**
+ * @dev 从数组中获取，对比两者差异
+ */
+ // function getList(
+ // address _nftContract
+ // ) external view returns (Listing[] memory) {
+ // for (uint256 i = 0; i < s_listArr.length; i++) {
+ // Listing memory item = s_listArr[i];
+ // Listing memory listingItem = s_listings[_nftContract][item.tokenId];
+ // item.isActive = listingItem.isActive;
+ // }
+ // return s_listArr;
+ // }
+}
+ |
| 1 +2 +3 +4 +5 +6 +7 +8 +9 +10 +11 +12 +13 +14 +15 +16 +17 +18 +19 +20 +21 +22 | + + + + + + + + + + + +3× + + + +1× +1× +1× + + + | // SPDX-License-Identifier: MIT
+pragma solidity ^0.8.20;
+
+import "@openzeppelin/contracts/token/ERC721/ERC721.sol";
+import "@openzeppelin/contracts/utils/Counters.sol";
+
+contract NftToken is ERC721 {
+ using Counters for Counters.Counter;
+ Counters.Counter private _tokenIdCounter;
+
+ // 每 mint 一个 nft 都需要把 count+1 表示 nft 总数量
+ constructor() ERC721("NftToken", "NT") {
+ _tokenIdCounter.increment();
+ }
+
+ function mint(address to) public {
+ uint256 tokenId = _tokenIdCounter.current();
+ _tokenIdCounter.increment();
+ _safeMint(to, tokenId);
+ }
+}
+ |
| File | ++ | Statements | ++ | Branches | ++ | Functions | ++ | Lines | ++ |
|---|---|---|---|---|---|---|---|---|---|
| MissopToken.sol | +100% | +2/2 | +100% | +0/0 | +100% | +2/2 | +100% | +2/2 | +|
| NftMarket.sol | +0% | +0/24 | +0% | +0/16 | +20% | +1/5 | +2.7% | +1/37 | +|
| NftToken.sol | +100% | +4/4 | +100% | +0/0 | +100% | +2/2 | +100% | +4/4 | +
| File | ++ | Statements | ++ | Branches | ++ | Functions | ++ | Lines | ++ |
|---|---|---|---|---|---|---|---|---|---|
| contracts/ | +20% | +6/30 | +0% | +0/16 | +55.56% | +5/9 | +16.28% | +7/43 | +
+ cid:{nft.cid} +
++ 持有者：{nft.seller} +
+价格：{nft.price.toString()}MT
++ 上架时间：{nft.listTime ? formatDate(fromUnixTime(nft.listTime.toString()), "yyyy-MM-dd HH:mm:ss") : ""} +
+ {nft.seller === address ? ( + + ) : ( + + )} +