// SPDX-License-Identifier: MIT

 pragma solidity 0.8.22;

 interface IUniswapV2Factory {
     function createPair(address tokenA, address tokenB) external returns (address pair);
 }
 
 interface IUniswapV2Router01 {
     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);
 }
 
 interface IUniswapV2Router02 is IUniswapV2Router01 {
     function swapExactTokensForETHSupportingFeeOnTransferTokens(
         uint amountIn,
         uint amountOutMin,
         address[] calldata path,
         address to,
         uint deadline
     ) external;
 }
 
 interface IERC20 {
     function totalSupply() external view returns (uint256);
     function balanceOf(address account) external view returns (uint256);
     function transfer(address recipient, 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 sender,
         address recipient,
         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);
 }
 
 library Address {
     function sendValue(address payable recipient, uint256 amount) internal returns(bool){
         require(address(this).balance >= amount, "Address: insufficient balance");
 
         (bool success, ) = recipient.call{value: amount}("");
         return success; // always proceeds
     }
 }
 
 abstract contract Context {
     function _msgSender() internal view virtual returns (address) {
         return msg.sender;
     }
 
     function _msgData() internal view virtual returns (bytes calldata) {
         this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
         return msg.data;
     }
 }
 
 abstract contract Ownable is Context {
     address private _owner;
 
     event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
 
     constructor () {
         address msgSender = _msgSender();
         _owner = msgSender;
         emit OwnershipTransferred(address(0), msgSender);
     }
 
     function owner() public view returns (address) {
         return _owner;
     }
 
     modifier onlyOwner() {
         require(_owner == _msgSender(), "Ownable: caller is not the owner");
         _;
     }
 
     function renounceOwnership() public virtual onlyOwner {
         emit OwnershipTransferred(_owner, address(0));
         _owner = address(0);
     }
 
     function transferOwnership(address newOwner) public virtual onlyOwner {
         require(newOwner != address(0), "Ownable: new owner is the zero address");
         emit OwnershipTransferred(_owner, newOwner);
         _owner = newOwner;
     }
 }
 
 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 9;
     }
 
     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 recipient, uint256 amount) public virtual override returns (bool) {
         _transfer(_msgSender(), recipient, 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) {
         _approve(_msgSender(), spender, amount);
         return true;
     }
 
     function transferFrom(
         address sender,
         address recipient,
         uint256 amount
     ) public virtual override returns (bool) {
         uint256 currentAllowance = _allowances[sender][_msgSender()];
         if (currentAllowance != type(uint256).max) {
             require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
             unchecked {
                 _approve(sender, _msgSender(), currentAllowance - amount);
             }
         }
 
         _transfer(sender, recipient, amount);
 
         return true;
     }
 
     function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
         _approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
         return true;
     }
 
     function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
         uint256 currentAllowance = _allowances[_msgSender()][spender];
         require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
         unchecked {
             _approve(_msgSender(), spender, currentAllowance - subtractedValue);
         }
 
         return true;
     }
 
     function _transfer(
         address sender,
         address recipient,
         uint256 amount
     ) internal virtual {
         require(sender != address(0), "ERC20: transfer from the zero address");
         require(recipient != address(0), "ERC20: transfer to the zero address");
 
         uint256 senderBalance = _balances[sender];
         require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
         unchecked {
             _balances[sender] = senderBalance - amount;
         }
         _balances[recipient] += amount;
 
         emit Transfer(sender, recipient, amount);
     }
 
     function _mintOnce(address account, uint256 amount) internal virtual {
         require(account != address(0), "ERC20: mint to the zero address");
 
         _totalSupply += amount;
         _balances[account] += amount;
         emit Transfer(address(0), account, amount);
     }
 
     function _burn(address account, uint256 amount) internal virtual {
         require(account != address(0), "ERC20: burn from the zero address");
 
         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);
     }
 
     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);
     }
 }
 
 contract CF98 is ERC20, Ownable {
     using Address for address payable;
 
     IUniswapV2Router02 public uniswapV2Router;
     address public  uniswapV2Pair;
 
     mapping (address => bool) private _isExcludedFromFees;
  
     uint256 public  liquidityFeeOnBuy;
     uint256 public  liquidityFeeOnSell;
 
     uint256 public  marketingFeeOnBuy;
     uint256 public  marketingFeeOnSell;
 
     uint256 private _totalFeesOnBuy;
     uint256 private _totalFeesOnSell;
   
     address public  marketingWallet;
 
     uint256 public  swapTokensAtAmount;
     bool    private swapping;
 
     bool    public swapEnabled;
 
     event ExcludeFromFees(address indexed account, bool isExcluded);
     event MarketingWalletChanged(address marketingWallet);
     event UpdateBuyFees(uint256 liquidityFeeOnBuy, uint256 marketingFeeOnBuy);
     event UpdateSellFees(uint256 liquidityFeeOnSell, uint256 marketingFeeOnSell);
     event SwapAndLiquify(uint256 tokensSwapped,uint256 bnbReceived,uint256 tokensIntoLiqudity);
     event SwapAndSendMarketing(uint256 tokensSwapped, uint256 bnbSend);
     event SwapTokensAtAmountUpdated(uint256 swapTokensAtAmount);
 
     constructor () ERC20("Crypto Farm 98", "CF98") 
     {   
         address router;
         address pinkLock;
         
         if (block.chainid == 56) {
             router = 0x10ED43C718714eb63d5aA57B78B54704E256024E; // BSC Pancake Mainnet Router
             pinkLock = 0x407993575c91ce7643a4d4cCACc9A98c36eE1BBE; // BSC PinkLock
         } else if (block.chainid == 97) {
             router = 0xD99D1c33F9fC3444f8101754aBC46c52416550D1; // BSC Pancake Testnet Router
             pinkLock = 0x5E5b9bE5fd939c578ABE5800a90C566eeEbA44a5; // BSC Testnet PinkLock
         } else if (block.chainid == 1 || block.chainid == 5) {
             router = 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D; // ETH Uniswap Mainnet % Testnet
             pinkLock = 0x71B5759d73262FBb223956913ecF4ecC51057641; // ETH PinkLock
         } else {
             revert();
         }
 
         IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(router);
         address _uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory())
             .createPair(address(this), _uniswapV2Router.WETH());
 
         uniswapV2Router = _uniswapV2Router;
         uniswapV2Pair   = _uniswapV2Pair;
 
         _approve(address(this), address(uniswapV2Router), type(uint256).max);
  
         liquidityFeeOnBuy  = 0;
         liquidityFeeOnSell = 0;
 
         marketingFeeOnBuy  = 15;
         marketingFeeOnSell = 15;
  
         _totalFeesOnBuy    = liquidityFeeOnBuy  + marketingFeeOnBuy;
         _totalFeesOnSell   = liquidityFeeOnSell + marketingFeeOnSell;
  
         marketingWallet = 0x6315f7AF034b4AD4a388FC8328ef921bF36C709d;
 
         maxTransactionLimitEnabled = true;
 
         _isExcludedFromMaxTxLimit[owner()] = true;
         _isExcludedFromMaxTxLimit[address(this)] = true;
         _isExcludedFromMaxTxLimit[address(0xdead)] = true;
         _isExcludedFromMaxTxLimit[marketingWallet] = true;
         _isExcludedFromMaxTxLimit[pinkLock] = true;
 
         _isExcludedFromFees[owner()] = true;
         _isExcludedFromFees[address(0xdead)] = true;
         _isExcludedFromFees[address(this)] = true;
         _isExcludedFromFees[pinkLock] = true;
 
         _mintOnce(owner(), 1e8 * (10 ** decimals()));
         swapTokensAtAmount = totalSupply() / 5_000;
     
         maxTransactionAmountBuy     = totalSupply() * 20 / 1000;
         maxTransactionAmountSell    = totalSupply() * 20 / 1000;
      
         tradingEnabled = false;
         swapEnabled = false;
     }
 
     receive() external payable {
 
       }
 
     function claimStuckTokens(address token) external onlyOwner {
         require(token != address(this), "Owner cannot claim contract's balance of its own tokens");
         if (token == address(0x0)) {
             payable(msg.sender).sendValue(address(this).balance);
             return;
         }
         IERC20 ERC20token = IERC20(token);
         uint256 balance = ERC20token.balanceOf(address(this));
         ERC20token.transfer(msg.sender, balance);
     }
 
     function excludeFromFees(address account, bool excluded) external onlyOwner{
         require(_isExcludedFromFees[account] != excluded,"Account is already the value of 'excluded'");
         _isExcludedFromFees[account] = excluded;
 
         emit ExcludeFromFees(account, excluded);
     }
 
     function isExcludedFromFees(address account) public view returns(bool) {
         return _isExcludedFromFees[account];
     }
 
     function updateBuyFees(uint256 _liquidityFeeOnBuy, uint256 _marketingFeeOnBuy) external onlyOwner {
         liquidityFeeOnBuy = _liquidityFeeOnBuy;
         marketingFeeOnBuy = _marketingFeeOnBuy;
 
         _totalFeesOnBuy   = liquidityFeeOnBuy + marketingFeeOnBuy;
 
         require(_totalFeesOnBuy <= 25, "Total Fees cannot exceed the maximum");
 
         emit UpdateBuyFees(liquidityFeeOnBuy, marketingFeeOnBuy);
     }
 
     function updateSellFees(uint256 _liquidityFeeOnSell, uint256 _marketingFeeOnSell) external onlyOwner {
         liquidityFeeOnSell = _liquidityFeeOnSell;
         marketingFeeOnSell = _marketingFeeOnSell;
 
         _totalFeesOnSell   = liquidityFeeOnSell + marketingFeeOnSell;
 
         require(_totalFeesOnSell <= 25, "Total Fees cannot exceed the maximum");
 
         emit UpdateSellFees(liquidityFeeOnSell, marketingFeeOnSell);
     }
 
     function changeMarketingWallet(address _marketingWallet) external onlyOwner{
         require(_marketingWallet != marketingWallet,"Marketing wallet is already that address");
         require(_marketingWallet != address(0),"Marketing wallet cannot be the zero address");
         marketingWallet = _marketingWallet;
 
         emit MarketingWalletChanged(marketingWallet);
     }
 
     bool public tradingEnabled;
 
     function enableTrading() external onlyOwner{
         require(!tradingEnabled, "Trading already enabled.");
         tradingEnabled = true;
         swapEnabled = true;
     }
 
     function _transfer(address from,address to,uint256 amount) internal  override {
         require(from != address(0), "ERC20: transfer from the zero address");
         require(to != address(0), "ERC20: transfer to the zero address");
         require(tradingEnabled || _isExcludedFromFees[from] || _isExcludedFromFees[to], "Trading not yet enabled!");
        
         if (amount == 0) {
             super._transfer(from, to, 0);
             return;
         }
 
         if (maxTransactionLimitEnabled) 
         {
             if ((from == uniswapV2Pair || to == uniswapV2Pair) &&
                 !_isExcludedFromMaxTxLimit[from] && 
                 !_isExcludedFromMaxTxLimit[to]
             ) {
                 if (from == uniswapV2Pair) {
                     require(
                         amount <= maxTransactionAmountBuy,  
                         "AntiWhale: Transfer amount exceeds the maxTransactionAmount"
                     );
                 } else {
                     require(
                         amount <= maxTransactionAmountSell, 
                         "AntiWhale: Transfer amount exceeds the maxTransactionAmount"
                     );
                 }
             }
         }
 
         uint256 contractTokenBalance = balanceOf(address(this));
 
         bool canSwap = contractTokenBalance >= swapTokensAtAmount;
 
         if (canSwap &&
             !swapping &&
             to == uniswapV2Pair &&
             _totalFeesOnBuy + _totalFeesOnSell > 0 &&
             swapEnabled
         ) {
             swapping = true;
 
             uint256 totalFee = _totalFeesOnBuy + _totalFeesOnSell;
             uint256 liquidityShare = liquidityFeeOnBuy + liquidityFeeOnSell;
             uint256 marketingShare = marketingFeeOnBuy + marketingFeeOnSell;
 
             if (liquidityShare > 0) {
                 uint256 liquidityTokens = contractTokenBalance * liquidityShare / totalFee;
                 swapAndLiquify(liquidityTokens);
             }
             
             if (marketingShare > 0) {
                 uint256 marketingTokens = contractTokenBalance * marketingShare / totalFee;
                 swapAndSendMarketing(marketingTokens);
             }          
 
             swapping = false;
         }
 
         uint256 _totalFees;
         if (_isExcludedFromFees[from] || _isExcludedFromFees[to] || swapping) {
             _totalFees = 0;
         } else if (from == uniswapV2Pair) {
             _totalFees = _totalFeesOnBuy;
         } else if (to == uniswapV2Pair) {
             _totalFees = _totalFeesOnSell;
         } else {
             _totalFees = 0;
         }
 
         if (_totalFees > 0) {
             uint256 fees = (amount * _totalFees) / 100;
             amount = amount - fees;
             super._transfer(from, address(this), fees);
         }
 
         super._transfer(from, to, amount);
     }
 
     function setSwapEnabled(bool _enabled) external onlyOwner{
         require(swapEnabled != _enabled, "swapEnabled already at this state.");
         swapEnabled = _enabled;
     }
 
     function setSwapTokensAtAmount(uint256 newAmount) external onlyOwner{
         require(newAmount > totalSupply() / 1_000_000, "SwapTokensAtAmount must be greater than 0.0001% of total supply");
         swapTokensAtAmount = newAmount;
 
         emit SwapTokensAtAmountUpdated(swapTokensAtAmount);
     }
 
     function swapAndLiquify(uint256 tokens) private {
         uint256 half = tokens / 2;
         uint256 otherHalf = tokens - half;
 
         uint256 initialBalance = address(this).balance;
 
         address[] memory path = new address[](2);
         path[0] = address(this);
         path[1] = uniswapV2Router.WETH();
 
         try uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
             half,
             0,
             path,
             address(this),
             block.timestamp
         ) {} catch {}
         
         uint256 newBalance = address(this).balance - initialBalance;
 
         try uniswapV2Router.addLiquidityETH{value: newBalance}(
             address(this),
             otherHalf,
             0,
             0,
             address(0xdead),
             block.timestamp
         ) {} catch {}
 
         emit SwapAndLiquify(half, newBalance, otherHalf);
     }
 
     function swapAndSendMarketing(uint256 tokenAmount) private {
         uint256 initialBalance = address(this).balance;
 
         address[] memory path = new address[](2);
         path[0] = address(this);
         path[1] = uniswapV2Router.WETH();
 
         try uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
             tokenAmount,
             0,
             path,
             address(this),
             block.timestamp
         ) {} catch {}
 
         uint256 newBalance = address(this).balance - initialBalance;
 
         payable(marketingWallet).sendValue(newBalance);
 
         emit SwapAndSendMarketing(tokenAmount, newBalance);
     }
 
     mapping(address => bool) private _isExcludedFromMaxTxLimit;
     bool    public  maxTransactionLimitEnabled;
     uint256 public  maxTransactionAmountBuy;
     uint256 public  maxTransactionAmountSell;
 
     event ExcludedFromMaxTransactionLimit(address indexed account, bool isExcluded);
     event MaxTransactionLimitStateChanged(bool maxTransactionLimit);
     event MaxTransactionLimitAmountChanged(uint256 maxTransactionAmountBuy, uint256 maxTransactionAmountSell);
 
     function setEnableMaxTransactionLimit(bool enable) external onlyOwner {
         require(enable != maxTransactionLimitEnabled, "Max transaction limit is already set to that state");
         maxTransactionLimitEnabled = enable;
 
         emit MaxTransactionLimitStateChanged(maxTransactionLimitEnabled);
     }
 
     function setMaxTransactionAmounts(uint256 _maxTransactionAmountBuy, uint256 _maxTransactionAmountSell) external onlyOwner {
         require(
             _maxTransactionAmountBuy  >= (totalSupply() / (10 ** decimals())) / 1_000 && 
             _maxTransactionAmountSell >= (totalSupply() / (10 ** decimals())) / 1_000, 
             "Max Transaction limis cannot be lower than 0.1% of total supply"
         ); 
         maxTransactionAmountBuy  = _maxTransactionAmountBuy  * (10 ** decimals());
         maxTransactionAmountSell = _maxTransactionAmountSell * (10 ** decimals());
 
         emit MaxTransactionLimitAmountChanged(maxTransactionAmountBuy, maxTransactionAmountSell);
     }
 
     function excludeFromMaxTransactionLimit(address account, bool exclude) external onlyOwner {
         require( _isExcludedFromMaxTxLimit[account] != exclude, "Account is already set to that state");
         require(account != address(this), "Can't set this address.");
 
         _isExcludedFromMaxTxLimit[account] = exclude;
 
         emit ExcludedFromMaxTransactionLimit(account, exclude);
     }
 
     function isExcludedFromMaxTransaction(address account) public view returns(bool) {
         return _isExcludedFromMaxTxLimit[account];
     }
 }

{
  "compilationTarget": {
    "CF98.sol": "CF98"
  },
  "evmVersion": "shanghai",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "remappings": []
}