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tokengang.sol

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+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.0;
+
+import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
+import "@openzeppelin/contracts/access/Ownable.sol";
+
+contract TokenomicsToken is ERC20, Ownable {
+    uint256 public taxRate; // Tax rate in basis points (e.g., 100 = 1%)
+    address public taxWallet;
+
+    constructor(
+        string memory name,
+        string memory symbol,
+        uint256 initialSupply,
+        uint256 _taxRate,
+        address _taxWallet
+    ) ERC20(name, symbol) {
+        require(_taxWallet != address(0), "Invalid tax wallet address");
+        require(_taxRate <= 1000, "Tax rate too high"); // Max 10%
+
+        taxRate = _taxRate;
+        taxWallet = _taxWallet;
+
+        _mint(msg.sender, initialSupply * (10 ** decimals()));
+    }
+
+    function setTaxRate(uint256 _taxRate) external onlyOwner {
+        require(_taxRate <= 1000, "Tax rate too high");
+        taxRate = _taxRate;
+    }
+
+    function setTaxWallet(address _taxWallet) external onlyOwner {
+        require(_taxWallet != address(0), "Invalid tax wallet address");
+        taxWallet = _taxWallet;
+    }
+
+    function transfer(address recipient, uint256 amount)
+        public
+        override
+        returns (bool)
+    {
+        uint256 tax = (amount * taxRate) / 10000;
+        uint256 netAmount = amount - tax;
+
+        if (tax > 0) {
+            _transfer(_msgSender(), taxWallet, tax);
+        }
+        _transfer(_msgSender(), recipient, netAmount);
+
+        return true;
+    }
+
+    function transferFrom(
+        address sender,
+        address recipient,
+        uint256 amount
+    ) public override returns (bool) {
+        uint256 tax = (amount * taxRate) / 10000;
+        uint256 netAmount = amount - tax;
+
+        if (tax > 0) {
+            _transfer(sender, taxWallet, tax);
+        }
+        _transfer(sender, recipient, netAmount);
+
+        uint256 currentAllowance = allowance(sender, _msgSender());
+        require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
+        _approve(sender, _msgSender(), currentAllowance - amount);
+
+        return true;
+    }
+}