增加一个erc20换取ceg的合约

contracts/market/BETokenMall.sol

@@ -0,0 +1,108 @@
+// SPDX-License-Identifier: MIT
+pragma solidity 0.8.10;
+
+import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
+import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
+import "@openzeppelin/contracts/security/ReentrancyGuard.sol";
+import "../utils/UInt.sol";
+import "./MallBase.sol";
+
+interface ICurrency is IERC20 {
+  function decimals() external view returns (uint256);
+}
+
+contract BETokenMall is MallBase, ReentrancyGuard {
+  using SafeERC20 for IERC20;
+  using UInt for uint256;
+  uint256 constant ROUND = 1000000;
+  address public tokenAddress;
+  address public seller;
+  // currency => price
+  mapping(address => uint256) public prices;
+
+  // Events
+  event BuyTransaction(
+    address indexed buyer,
+    address tokenAddress,
+    address currency,
+    uint256 amount
+  );
+  event TokenAddressUpdated(address tokenAddress);
+  event SellerUpdated(address seller);
+  event UpdateTokenPrice(address currency, uint256 price, uint256 pricePre);
+
+  /**
+   * @dev Constructor
+   */
+  constructor(address _tokenAddress, address _seller) {
+    tokenAddress = _tokenAddress;
+    seller = _seller;
+  }
+
+  /**
+   * @dev Update token address
+   */
+  function updateTokenAddress(address _tokenAddress) external onlyOwner {
+    tokenAddress = _tokenAddress;
+    emit TokenAddressUpdated(_tokenAddress);
+  }
+
+  /**
+   * @dev Update seller address
+   */
+  function updateSeller(address _seller) external onlyOwner {
+    seller = _seller;
+    emit SellerUpdated(_seller);
+  }
+
+  /**
+   * @dev Update token price
+   */
+  function updateTokenPrice(
+    address currency,
+    uint256 price
+  ) external onlyOwner {
+    uint256 pricePre = prices[currency];
+    prices[currency] = price;
+    emit UpdateTokenPrice(currency, price, pricePre);
+  }
+
+  /**
+   * @dev Buy token
+   */
+  function buyToken(address currency, uint256 amount) external nonReentrant {
+    require(amount > 0, "BETokenMall: invalid amount");
+    require(erc20Supported[currency], "BETokenMall: invalid payment method");
+    require(prices[currency] > 0, "BETokenMall: invalid token price");
+    // calc currency amount
+    uint256 currencyDecimal = ICurrency(currency).decimals();
+    uint256 tokenAmount = (prices[currency] *
+      amount *
+      (10 ** (18 - currencyDecimal))) / ROUND;
+    address buyer = _msgSender();
+    require(
+      IERC20(tokenAddress).balanceOf(seller) >= tokenAmount,
+      "BETokenMall: seller doesn't have enough token to sell this item"
+    );
+    require(
+      IERC20(tokenAddress).allowance(seller, address(this)) >= tokenAmount,
+      "BETokenMall: seller doesn't approve enough token to sell this item"
+    );
+    // Check payment approval and buyer balance
+    require(
+      IERC20(currency).balanceOf(buyer) >= amount,
+      "BETokenMall: buyer doesn't have enough token to buy this item"
+    );
+    require(
+      IERC20(currency).allowance(buyer, address(this)) >= amount,
+      "BETokenMall: buyer doesn't approve enough token to buy this item"
+    );
+
+    // Transfer payment to seller
+    IERC20(currency).safeTransferFrom(buyer, feeToAddress, amount);
+    // Transfer token to buyer
+    IERC20(tokenAddress).safeTransferFrom(seller, buyer, tokenAmount);
+    // emit buy event
+    emit BuyTransaction(buyer, tokenAddress, currency, amount);
+  }
+}

migrations/7_deploy_market.js

@@ -2,6 +2,9 @@ const BENftMarket = artifacts.require("market/BENftMarket");
 const BENftMall = artifacts.require("market/BENftMall");
 const GameItemMarket = artifacts.require("market/GameItemMarket");
 const GameItemMall = artifacts.require("market/GameItemMall");
+const FT = artifacts.require("tokens/erc20/FT");
+const BETokenMall = artifacts.require("market/BETokenMall");
+const config = require("../config/config");
 const base = require("../scripts/base");
 
 module.exports = async function (deployer, network, accounts) {
@@ -18,16 +21,40 @@ module.exports = async function (deployer, network, accounts) {
   //   network,
   // });
 
-  await deployer.deploy(BENftMall);
+  // await deployer.deploy(BENftMall);
-  const nftMallInstance = await BENftMall.deployed();
+  // const nftMallInstance = await BENftMall.deployed();
-  if (nftMallInstance) {
+  // if (nftMallInstance) {
-    console.log("BENftMall successfully deployed.");
+  //   console.log("BENftMall successfully deployed.");
+  // }
+  // base.updateArray({
+  //   name: "BENftMall",
+  //   type: "logic",
+  //   json: "assets/contracts/BENftMall.json",
+  //   address: nftMallInstance.address,
+  //   network,
+  // });
+  let cfgs = base.loadData({ network });
+  const cegInstance = await FT.at(cfgs.find((c) => c.name === "CEG").address);
+  await deployer.deploy(
+    BETokenMall,
+    cegInstance.address,
+    config.market.feeToAddress
+  );
+  const tokenMallInstance = await BETokenMall.deployed();
+  if (tokenMallInstance) {
+    console.log("BETokenMall successfully deployed.");
   }
+  await tokenMallInstance.setFeeToAddress(config.market.feeToAddress);
+  const usdcInstance = await FT.at(
+    cfgs.find((c) => c.name === "BEUSDC").address
+  );
+  await tokenMallInstance.addERC20Support(usdcInstance.address);
+  await tokenMallInstance.updateTokenPrice(usdcInstance.address, "10000000");
   base.updateArray({
-    name: "BENftMall",
+    name: "BETokenMall",
     type: "logic",
-    json: "assets/contracts/BENftMall.json",
+    json: "assets/contracts/BETokenMall.json",
-    address: nftMallInstance.address,
+    address: tokenMallInstance.address,
     network,
   });
 

out_arbitrum_testnet_dev.json

@@ -99,7 +99,7 @@
     "name": "BEMultiSigWallet",
     "type": "logic",
     "json": "assets/contracts/BEMultiSigWallet.json",
-    "address": "0xE68F149daF2F314d9960c08496D8701BC7671850"
+    "address": "0x2419c58F3542E69c3f10dfe6C1Bb1fBd4D54Db5A"
   },
   {
     "name": "TestBadge",
@@ -118,5 +118,11 @@
     "type": "erc20",
     "json": "assets/contracts/FT.json",
     "address": "0x944D0A8463B2c955F90F7252bBb99A3395087155"
+  },
+  {
+    "name": "BETokenMall",
+    "type": "logic",
+    "json": "assets/contracts/BETokenMall.json",
+    "address": "0x9110Bc91942E559eebBF19B91cdAf67eEee3F93D"
   }
 ]