// SPDX-License-Identifier: MIT

              
pragma solidity 0.8.20;
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }
}
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);
}

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 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);
    }

    function renounceOwnership() public virtual onlyOwner {
        emit OwnershipTransferred(_owner, address(0));
        _owner = address(0);
    }
}

interface IUniswapV2Factory {
    function createPair(address tokenA, address tokenB) external returns (address pair);
}

interface IUniswapV2Router02 {
    function swapExactTokensForETHSupportingFeeOnTransferTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external;

    function factory() external pure returns (address);
    function WETH() external pure returns (address);
}

contract MattFurie is Context, IERC20, Ownable {
    mapping (address => uint256) private _balances;
    mapping (address => mapping (address => uint256)) private _allowances;
    mapping (address => bool) private _isExcludedFromFee;
    address public constant deadWallet = 0x000000000000000000000000000000000000dEaD;
    address payable public MarketingWallet;
    uint8 private constant _decimals = 9;
    uint256 private constant _tTotal =  420690000000000 * 10**_decimals; 
    string private constant _name = "MattFurie";
    string private constant _symbol = "MattFurie";
    uint256 private SwapTokens = 1262070000000 * 10**_decimals; 
    uint256 private maxSwapTokens = 4206900000000 * 10**_decimals;
    uint256 public maxTxAmount = 8413800000000 * 10**_decimals; 
    uint256 private _launchBuyTax = 40;
    uint256 private _launchSellTax = 40;
    uint256 private buyTaxes = 3;
    uint256 private sellTaxes = 3;
    bool private _isFinalFeeDone = false;
    uint256 private _Buys_In = 0;
   
    IUniswapV2Router02 public uniswapV2Router;
    address private uniswapV2Pair;
    bool public tradeEnable = true; // Торговля по умолчанию разрешена

    event FeesRecieverUpdated(address indexed _newWallet);
    event ExcludeFromFeeUpdated(address indexed account);
    event includeFromFeeUpdated(address indexed account);
    event SwapThreshouldUpdated(uint256 indexed minToken, uint256 indexed maxToken);
    event ERC20TokensRecovered(uint256 indexed _amount);
    event ETHBalanceRecovered();
    
    modifier lockTheSwap {
        _;
    }

    constructor () {
        uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D); // PCS BSC Mainnet Router
        uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(address(this), uniswapV2Router.WETH());
        MarketingWallet = payable(0xdb8ab6d727e915377308B0a202dDDAf52aaeb9a5);
        _balances[_msgSender()] = _tTotal;
        _isExcludedFromFee[_msgSender()] = true;
        _isExcludedFromFee[address(this)] = true;
        _isExcludedFromFee[MarketingWallet] = true;
        _isExcludedFromFee[deadWallet] = true;

        emit Transfer(address(0), _msgSender(), _tTotal);
    }

    function name() public pure returns (string memory) {
        return _name;
    }

    function symbol() public pure returns (string memory) {
        return _symbol;
    }

    function decimals() public pure returns (uint8) {
        return _decimals;
    }

    function totalSupply() public pure override returns (uint256) {
        return _tTotal;
    }

    function balanceOf(address account) public view override returns (uint256) {
        return _balances[account];
    }

    function min(uint256 a, uint256 b) private pure returns (uint256) {
        return (a > b) ? b : a;
    }

    function transfer(address recipient, uint256 amount) public override returns (bool) {
        _transfer(_msgSender(), recipient, amount);
        return true;
    }

    function allowance(address owner, address spender) public view override returns (uint256) {
        return _allowances[owner][spender];
    }

    function approve(address spender, uint256 amount) public override returns (bool) {
        _approve(_msgSender(), spender, amount);
        return true;
    }

    function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) {
        uint256 currentAllowance = _allowances[sender][_msgSender()];
        require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
        _transfer(sender, recipient, amount);
        _approve(sender, _msgSender(), currentAllowance - amount);
        return true;
    }

    function _approve(address owner, address spender, uint256 amount) private {
        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 _transfer(address from, address to, uint256 amount) private {
        require(from != address(0), "ERC20: transfer from the zero address");
        require(to != address(0), "ERC20: transfer to the zero address");
        require(amount > 0, "Transfer amount must be greater than zero");
        uint256 TaxSwap = 0;

        if (!_isExcludedFromFee[from] && !_isExcludedFromFee[to]) {
            require(tradeEnable, "Trading not enabled");       
            TaxSwap = amount * ((_isFinalFeeDone) ? buyTaxes : _launchBuyTax) / 100;
        }

        if (_isExcludedFromFee[from] || _isExcludedFromFee[to]) {
            TaxSwap = 0;
        } 

        if (from == uniswapV2Pair && to != address(uniswapV2Router) && !_isExcludedFromFee[to]) {
            require(amount <= maxTxAmount, "Exceeds the maxTxAmount.");
            require(balanceOf(to) + amount <= maxTxAmount, "Exceeds the maxWalletSize.");
            _Buys_In++;
        } 

        if (from != uniswapV2Pair && !_isExcludedFromFee[from] && !_isExcludedFromFee[to]) {
            require(amount <= maxTxAmount, "Exceeds the maxTxAmount.");
        }

        if (to == uniswapV2Pair && from != address(this) && !_isExcludedFromFee[from] && !_isExcludedFromFee[to]) {
            TaxSwap = amount * ((_isFinalFeeDone) ? sellTaxes : _launchSellTax) / 100;
        } 

        uint256 contractTokenBalance = balanceOf(address(this));
        if (from != uniswapV2Pair && contractTokenBalance > SwapTokens && _Buys_In > 1) {
            swapTokensForEth(min(amount, min(contractTokenBalance, maxSwapTokens)));
            uint256 contractETHBalance = address(this).balance;
            if (contractETHBalance > 0) {
                sendETHToFee(address(this).balance);
            }
        }
        _balances[from] = _balances[from] - amount; 
        _balances[to] = _balances[to] + (amount - (TaxSwap));
        emit Transfer(from, to, amount - (TaxSwap));
        if (TaxSwap > 0) {
            _balances[address(this)] = _balances[address(this)] + (TaxSwap);
            emit Transfer(from, address(this), TaxSwap);
        }
    }

    function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {
        require(tokenAmount > 0, "Amount must be greater than 0");
        address[] memory path = new address[](2);
        path[0] = address(this);
        path[1] = uniswapV2Router.WETH();
        _approve(address(this), address(uniswapV2Router), tokenAmount);
        uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
            tokenAmount,
            0,
            path,
            address(this),
            block.timestamp
        );
    }

    function sendETHToFee(uint256 amount) private {
        require(amount > 0, "Amount must be greater than 0");
        MarketingWallet.transfer(amount);
    }

    function removeMaxTxLimit() external onlyOwner {
        maxTxAmount = _tTotal;
    }

    function updateFinalFee() external onlyOwner {
        _isFinalFeeDone = true;
    }

    function setMarketingWallet(address payable _newWallet) external onlyOwner {
        require(_newWallet != address(this), "Contract address cannot be the Fee Receiver");
        require(_newWallet != address(0), "Zero address cannot be the Fee Receiver");
        MarketingWallet = _newWallet;
        _isExcludedFromFee[_newWallet] = true;
        emit FeesRecieverUpdated(_newWallet);
    }

    function excludeFromFee(address account) external onlyOwner {
        require(!_isExcludedFromFee[account], "Account is already excluded");
        _isExcludedFromFee[account] = true;
        emit ExcludeFromFeeUpdated(account);
    }

    function includeFromFee(address account) external onlyOwner {
        require(_isExcludedFromFee[account], "Account is already included");
        _isExcludedFromFee[account] = false;
        emit includeFromFeeUpdated(account);
    }

    function updateThreshouldToken(uint256 minToken, uint256 maxToken) external onlyOwner {
        require(maxToken <= 4206900000000, "Amount must be less than or equal to 1% of the supply");
        require(minToken <= 1262070000000, "Amount must be less than or equal to 0.3% of the supply");
        SwapTokens = minToken * 10**_decimals;
        maxSwapTokens = maxToken * 10**_decimals;
        emit SwapThreshouldUpdated(minToken, maxToken);
    }

    receive() external payable {}

    function recoverERC20FromContract(address _tokenAddy, uint256 _amount) external onlyOwner {
        require(_tokenAddy != address(this), "Owner can't claim contract's balance of its own tokens");
        require(_amount > 0, "Amount should be greater than zero");
        require(_amount <= IERC20(_tokenAddy).balanceOf(address(this)), "Insufficient Amount");
        IERC20(_tokenAddy).transfer(MarketingWallet, _amount);
        emit ERC20TokensRecovered(_amount); 
    }

    function recoverETHfromContract() external onlyOwner {
        uint256 contractETHBalance = address(this).balance;
        require(contractETHBalance > 0, "Amount should be greater than zero");
        require(contractETHBalance <= address(this).balance, "Insufficient Amount");
        payable(address(MarketingWallet)).transfer(contractETHBalance);
        emit ETHBalanceRecovered();
    }
}