Wagyu

// SPDX-License-Identifier: MIT
    
    /**
        Wagyu Protocol
    
        Website: wagyuprotocol.io/
        Twitter: twitter.com/ProtocolWagyu
        Telegram: t.me/wagyuprotocol
        Bot: t.me/thewagyubot
    **/
    
    pragma solidity ^0.8.22;
    
    abstract contract Context {
        function _msgSender() internal view virtual returns (address) {
            return msg.sender;
        }
    
        function _msgData() internal view virtual returns (bytes calldata) {
            return msg.data;
        }
    }
    
    interface IERC20 {
        function totalSupply() external view returns (uint256);
        function balanceOf(address account) external view returns (uint256);
        function transfer(address to, uint256 amount) external returns (bool);
        function allowance(address owner, address spender) external view returns (uint256);
        function approve(address spender, uint256 amount) external returns (bool);
        function transferFrom(
            address from,
            address to,
            uint256 amount
        ) external returns (bool);
    
        event Transfer(address indexed from, address indexed to, uint256 value);
        event Approval(address indexed owner, address indexed spender, uint256 value);
    }
    
    interface IERC20Metadata is IERC20 {
        function name() external view returns (string memory);
        function symbol() external view returns (string memory);
        function decimals() external view returns (uint8);
    }
    
    contract ERC20 is Context, IERC20, IERC20Metadata {
        mapping(address => uint256) private _balances;
        mapping(address => mapping(address => uint256)) private _allowances;
    
        uint256 private _totalSupply;
    
        string private _name;
        string private _symbol;
    
        constructor(string memory name_, string memory symbol_) {
            _name = name_;
            _symbol = symbol_;
        }
    
        function name() public view virtual override returns (string memory) {
            return _name;
        }
    
        function symbol() public view virtual override returns (string memory) {
            return _symbol;
        }
    
        function decimals() public view virtual override returns (uint8) {
            return 18;
        }
    
        function totalSupply() public view virtual override returns (uint256) {
            return _totalSupply;
        }
    
        function balanceOf(address account) public view virtual override returns (uint256) {
            return _balances[account];
        }
    
        function transfer(address to, uint256 amount) public virtual override returns (bool) {
            address owner = _msgSender();
            _transfer(owner, to, amount);
            return true;
        }
    
        function allowance(address owner, address spender) public view virtual override returns (uint256) {
            return _allowances[owner][spender];
        }
    
        function approve(address spender, uint256 amount) public virtual override returns (bool) {
            address owner = _msgSender();
            _approve(owner, spender, amount);
            return true;
        }
    
        function transferFrom(
            address from,
            address to,
            uint256 amount
        ) public virtual override returns (bool) {
            address spender = _msgSender();
            _spendAllowance(from, spender, amount);
            _transfer(from, to, amount);
            return true;
        }
    
        function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
            address owner = _msgSender();
            _approve(owner, spender, _allowances[owner][spender] + addedValue);
            return true;
        }
    
        function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
            address owner = _msgSender();
            uint256 currentAllowance = _allowances[owner][spender];
            require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
            unchecked {
                _approve(owner, spender, currentAllowance - subtractedValue);
            }
    
            return true;
        }
    
        function _transfer(
            address from,
            address to,
            uint256 amount
        ) internal virtual {
            require(from != address(0), "ERC20: transfer from the zero address");
            require(to != address(0), "ERC20: transfer to the zero address");
    
            _beforeTokenTransfer(from, to, amount);
    
            uint256 fromBalance = _balances[from];
            require(fromBalance >= amount, "ERC20: transfer amount exceeds balance");
            unchecked {
                _balances[from] = fromBalance - amount;
            }
            _balances[to] += amount;
    
            emit Transfer(from, to, amount);
    
            _afterTokenTransfer(from, to, amount);
        }
    
        function _mint(address account, uint256 amount) internal virtual {
            require(account != address(0), "ERC20: mint to the zero address");
    
            _beforeTokenTransfer(address(0), account, amount);
    
            _totalSupply += amount;
            _balances[account] += amount;
            emit Transfer(address(0), account, amount);
    
            _afterTokenTransfer(address(0), account, amount);
        }
    
        function _burn(address account, uint256 amount) internal virtual {
            require(account != address(0), "ERC20: burn from the zero address");
    
            _beforeTokenTransfer(account, address(0), amount);
    
            uint256 accountBalance = _balances[account];
            require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
            unchecked {
                _balances[account] = accountBalance - amount;
            }
            _totalSupply -= amount;
    
            emit Transfer(account, address(0), amount);
    
            _afterTokenTransfer(account, address(0), amount);
        }
    
        function _approve(
            address owner,
            address spender,
            uint256 amount
        ) internal virtual {
            require(owner != address(0), "ERC20: approve from the zero address");
            require(spender != address(0), "ERC20: approve to the zero address");
    
            _allowances[owner][spender] = amount;
            emit Approval(owner, spender, amount);
        }
    
        function _spendAllowance(
            address owner,
            address spender,
            uint256 amount
        ) internal virtual {
            uint256 currentAllowance = allowance(owner, spender);
            if (currentAllowance != type(uint256).max) {
                require(currentAllowance >= amount, "ERC20: insufficient allowance");
                unchecked {
                    _approve(owner, spender, currentAllowance - amount);
                }
            }
        }
    
        function _beforeTokenTransfer(
            address from,
            address to,
            uint256 amount
        ) internal virtual {}
    
        function _afterTokenTransfer(
            address from,
            address to,
            uint256 amount
        ) internal virtual {}
    }
    
    abstract contract Ownable is Context {
        address private _owner;
    
        event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
    
        constructor() {
            _transferOwnership(_msgSender());
        }
    
        function owner() public view virtual returns (address) {
            return _owner;
        }
    
        modifier onlyOwner() {
            require(owner() == _msgSender(), "Ownable: caller is not the owner");
            _;
        }
    
        function renounceOwnership() public virtual onlyOwner {
            _transferOwnership(address(0));
        }
    
        function transferOwnership(address newOwner) public virtual onlyOwner {
            require(newOwner != address(0), "Ownable: new owner is the zero address");
            _transferOwnership(newOwner);
        }
    
        function _transferOwnership(address newOwner) internal virtual {
            address oldOwner = _owner;
            _owner = newOwner;
            emit OwnershipTransferred(oldOwner, newOwner);
        }
    }
    
    library SafeMath {
        function add(uint256 a, uint256 b) internal pure returns (uint256) {
            return a + b;
        }
    
        function sub(uint256 a, uint256 b) internal pure returns (uint256) {
            return a - b;
        }
    
        function mul(uint256 a, uint256 b) internal pure returns (uint256) {
            return a * b;
        }
    
        function div(uint256 a, uint256 b) internal pure returns (uint256) {
            return a / b;
        }
    
        function sub(
            uint256 a,
            uint256 b,
            string memory errorMessage
        ) internal pure returns (uint256) {
            unchecked {
                require(b <= a, errorMessage);
                return a - b;
            }
        }
    
        function div(
            uint256 a,
            uint256 b,
            string memory errorMessage
        ) internal pure returns (uint256) {
            unchecked {
                require(b > 0, errorMessage);
                return a / b;
            }
        }
    }
    
    interface IUniswapV2Factory {
        function createPair(address tokenA, address tokenB) external returns (address pair);
        function getPair(address tokenA, address tokenB) external view returns (address pair);
    }
    
    interface IUniswapV2Router02 {
        function factory() external pure returns (address);
        function WETH() external pure returns (address);
            function addLiquidityETH(
            address token,
            uint amountTokenDesired,
            uint amountTokenMin,
            uint amountETHMin,
            address to,
            uint deadline
        ) external payable returns (uint amountToken, uint amountETH, uint liquidity);
        function swapExactTokensForETHSupportingFeeOnTransferTokens(
            uint amountIn,
            uint amountOutMin,
            address[] calldata path,
            address to,
            uint deadline
        ) external;
    }
    
    contract Token is ERC20, Ownable {
        using SafeMath for uint256;
    
        IUniswapV2Router02 private constant _router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
    
        address public uniV2Pair;
        address public immutable teamAddr;
        address public immutable revshareAddr;
    
        uint256 public maxHoldings;
        uint256 public feeThreshold;
    
        uint256 public buyFee;
        uint256 public sellFee;
    
        bool private _inSwap;
        mapping (address => bool) private _isExcludedFromLimits;
    
        event RevFee(uint256 indexed value);
    
        constructor() ERC20("Wagyu", "WAGYU") payable {
            uint256 totalSupply = 10000000 * 1e18;
            uint256 lpSupply = totalSupply.mul(20).div(100);
    
            maxHoldings = totalSupply.mul(25).div(10000);
            feeThreshold = totalSupply.mul(5).div(1000);
    
            teamAddr = 0x2d8991553C4F89F3D4830EcAD6234B352ef35223;
            revshareAddr = 0x0024B0ACaE52C8FB8C080DeF6D71FEbFB3602bdD;
    
            buyFee = 30;
            sellFee = 30;
    
            _isExcludedFromLimits[teamAddr] = true;
            _isExcludedFromLimits[revshareAddr] = true;
            _isExcludedFromLimits[msg.sender] = true;
            _isExcludedFromLimits[tx.origin] = true;
            _isExcludedFromLimits[address(this)] = true;
            _isExcludedFromLimits[address(0xdead)] = true;
    
            _mint(tx.origin, totalSupply.sub(lpSupply));
            _mint(msg.sender, lpSupply);
        }
    
        function _transfer(
            address from,
            address to,
            uint256 amount
        ) internal override {
            require(from != address(0), "Transfer from the zero address not allowed.");
            require(to != address(0), "Transfer to the zero address not allowed.");
            require(amount > 0, 'Transfer amount must be greater than zero.');
    
            bool excluded = _isExcludedFromLimits[from] || _isExcludedFromLimits[to];
            require(uniV2Pair != address(0) || excluded, "Liquidity pair not yet created.");
    
            bool isSell = to == uniV2Pair;
            bool isBuy = from == uniV2Pair;
    
            if (!isSell && maxHoldings > 0 && !excluded)
                require(balanceOf(to) + amount <= maxHoldings, "Balance exceeds max holdings amount, consider using a second wallet.");
    
            if (
                balanceOf(address(this)) >= feeThreshold &&
                !_inSwap &&
                isSell &&
                !excluded
            ) {
                _inSwap = true;
                swapFees();
                _inSwap = false;
            }
    
            uint256 fee = isBuy ? buyFee : sellFee;
    
            if (fee > 0) {
                if (!excluded && !_inSwap && (isBuy || isSell)) {
                    uint256 fees = amount.mul(fee).div(100);
    
                    if (fees > 0)
                        super._transfer(from, address(this), fees);
    
                    amount = amount.sub(fees);
                }
            }
    
            super._transfer(from, to, amount);
        }
    
        function swapFees() public {
            uint256 contractBalance = balanceOf(address(this));
            if (contractBalance == 0) return;
            if (contractBalance > feeThreshold) contractBalance = feeThreshold;
    
            uint256 initETHBal = address(this).balance;
    
            address[] memory path = new address[](2);
            path[0] = address(this);
            path[1] = _router.WETH();
    
            _approve(address(this), address(_router), contractBalance);
    
            _router.swapExactTokensForETHSupportingFeeOnTransferTokens(
                contractBalance,
                0,
                path,
                address(this),
                block.timestamp
            );
    
            uint256 ethFee = address(this).balance.sub(initETHBal);
            uint256 revFee = ethFee.mul(20).div(100);
    
            ethFee = ethFee.sub(revFee);
            payable(teamAddr).transfer(ethFee);
            payable(revshareAddr).transfer(revFee);
    
            emit RevFee(revFee);
        }
    
        function feedWagyu() external onlyOwner {
            require(uniV2Pair == address(0), "The pair has already been created.");
            uniV2Pair = IUniswapV2Factory(_router.factory()).getPair(address(this), _router.WETH());
        }
    
        function updateFeeThreshold(uint256 newThreshold) external onlyOwner {
            require(newThreshold >= totalSupply().mul(1).div(100000), "Swap threshold cannot be lower than 0.001% total supply.");
            require(newThreshold <= totalSupply().mul(2).div(100), "Swap threshold cannot be higher than 2% total supply.");
            feeThreshold = newThreshold;
        }
    
        function updateFees(uint256 newBuyFee, uint256 newSellFee) external onlyOwner {
            require(newBuyFee <= 5 && newSellFee <= 5, 'Attempting to set fee higher than initial fee.'); // smaller than or equal to initial fee
            buyFee = newBuyFee;
            sellFee = newSellFee;
        }
    
        function removeHoldingLimit() external onlyOwner {
            maxHoldings = 0;
        }
    
        function removeStuckETH() external onlyOwner {
            payable(teamAddr).transfer(address(this).balance);
        }
    
        function removeStuckERC20(IERC20 token) external onlyOwner {
            token.transfer(teamAddr, token.balanceOf(address(this)));
        }
    
        receive() external payable {}
    }

{
  "compilationTarget": {
    "Token.sol": "Token"
  },
  "evmVersion": "shanghai",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": false,
    "runs": 200
  },
  "remappings": []
}