contract TOKEN is Context, IERC20, Ownable {
    using SafeMath for uint256;
    using Address for address;

    mapping(address => uint256) private _rOwned;
    mapping(address => uint256) private _tOwned;
    mapping(address => mapping(address => uint256)) private _allowances;
    mapping(address => bool) private _isExcludedFromFee;
    mapping(address => bool) private _isExcluded;
    mapping (address => bool) public _isBlacklisted;

    address[] private _excluded;
    address public _marketingWalletAddress;
    address public _charityWalletAddress;
    address private _burnAddress = 0x000000000000000000000000000000000000dEaD;
    address private _teamWallet = 0x7Ec379bAfB0344952755b86AB66749200F660730;
    address private _teamReserveWallet = 0xa38d3511bc092C0E8fa44057D77E4c46dBc5a5d5;
    uint256 private constant MAX = ~uint256(0);
    uint256 private _tTotal;
    uint256 private _rTotal;
    uint256 private _tFeeTotal;
    string private _name;
    string private _symbol;
    uint256 private _decimals;

    // Buy tax
    uint256 private _buyTaxFee = 2;
    uint256 private _buyLiquidityFee = 3;
    uint256 private _buyMarketingFee = 5;
    uint256 private _buyChairtyFee = 2;

    // Sell tax
    uint256 private _sellTaxFee = 2;
    uint256 private _sellLiquidityFee = 3;
    uint256 private _sellMarketingFee = 5;
    uint256 private _sellCharityFee = 2;

    uint256 public _taxFee = _buyTaxFee;
    uint256 public _liquidityFee = _buyLiquidityFee;
    uint256 public _marketingFee = _buyMarketingFee;
    uint256 public _charityFee = _buyChairtyFee;

    uint256 private _previousTaxFee = _taxFee;
    uint256 private _previousMarketingFee = _liquidityFee;
    uint256 private _previousLiquidityFee = _marketingFee;
    uint256 private _previousCharityFee = _charityFee;

    IUniswapV2Router02 public uniswapV2Router;
    address public uniswapV2Pair;
    bool inSwapAndLiquify;
    bool public swapAndLiquifyEnabled = true;
    uint256 public _maxTxAmount;
    uint256 public _maxWalletBalance;
    uint256 public numTokensSellToAddToLiquidity;
    event MinTokensBeforeSwapUpdated(uint256 minTokensBeforeSwap);
    event SwapAndLiquifyEnabledUpdated(bool enabled);
    event SwapAndLiquify(
        uint256 tokensSwapped,
        uint256 ethReceived,
        uint256 tokensIntoLiqudity
    );

    modifier lockTheSwap() {
        inSwapAndLiquify = true;
        _;
        inSwapAndLiquify = false;
    }

    constructor() {
        _name = "Smartass";
        _symbol = "ASS";
        _decimals = 18;
        _tTotal = 100000000000 * 10**_decimals;
        _rTotal = (MAX - (MAX % _tTotal));
        _maxTxAmount = 1000000000 * 10**_decimals; // 1%
        _maxWalletBalance = 1500000000 * 10**_decimals; // 1.5%
        numTokensSellToAddToLiquidity = 10000000 * 10**_decimals;
        _marketingWalletAddress = 0xb761882B67002F33112c0574a774213FAd10C03c;
        _charityWalletAddress = 0xBFC70B24a3658e0289a7A34dAA3dd98D36f6603f;
        

        _rOwned[_msgSender()] = _rTotal;

        IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(
            0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D
        );
        // Create a uniswap pair for this new token
        uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory())
            .createPair(address(this), _uniswapV2Router.WETH());

        // set the rest of the contract variables
        uniswapV2Router = _uniswapV2Router;

        //exclude owner and this contract from fee
        _isExcludedFromFee[_msgSender()] = true;
        _isExcludedFromFee[address(this)] = true;
        _isExcludedFromFee[_charityWalletAddress] = true;
        _isExcludedFromFee[_marketingWalletAddress] = true;
        _isExcludedFromFee[_teamWallet] = true;
        _isExcludedFromFee[_teamReserveWallet] = true;


        //exclude from rewards
        _isExcluded[_burnAddress] = true;
        _isExcluded[uniswapV2Pair] = true;

        _owner = _msgSender();
        emit Transfer(address(0), _msgSender(), _tTotal);
    }

    function name() public view returns (string memory) {
        return _name;
    }

    function symbol() public view returns (string memory) {
        return _symbol;
    }

    function decimals() public view returns (uint256) {
        return _decimals;
    }

    function totalSupply() public view override returns (uint256) {
        return _tTotal;
    }

    function balanceOf(address account) public view override returns (uint256) {
        if (_isExcluded[account]) return _tOwned[account];
        return tokenFromReflection(_rOwned[account]);
    }

    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) {
        _transfer(sender, recipient, amount);
        _approve(
            sender,
            _msgSender(),
            _allowances[sender][_msgSender()].sub(
                amount,
                "ERC20: transfer amount exceeds allowance"
            )
        );
        return true;
    }

    function increaseAllowance(address spender, uint256 addedValue)
        public
        virtual
        returns (bool)
    {
        _approve(
            _msgSender(),
            spender,
            _allowances[_msgSender()][spender].add(addedValue)
        );
        return true;
    }

    function decreaseAllowance(address spender, uint256 subtractedValue)
        public
        virtual
        returns (bool)
    {
        _approve(
            _msgSender(),
            spender,
            _allowances[_msgSender()][spender].sub(
                subtractedValue,
                "ERC20: decreased allowance below zero"
            )
        );
        return true;
    }

    function isExcludedFromReward(address account) public view returns (bool) {
        return _isExcluded[account];
    }

    function totalFees() public view returns (uint256) {
        return _tFeeTotal;
    }

    function deliver(uint256 tAmount) public {
        address sender = _msgSender();
        require(
            !_isExcluded[sender],
            "Excluded addresses cannot call this function"
        );
        (uint256 rAmount, , , , , , ) = _getValues(tAmount);
        _rOwned[sender] = _rOwned[sender].sub(rAmount);
        _rTotal = _rTotal.sub(rAmount);
        _tFeeTotal = _tFeeTotal.add(tAmount);
    }

    function reflectionFromToken(uint256 tAmount, bool deductTransferFee)
        public
        view
        returns (uint256)
    {
        require(tAmount <= _tTotal, "Amount must be less than supply");
        if (!deductTransferFee) {
            (uint256 rAmount, , , , , , ) = _getValues(tAmount);
            return rAmount;
        } else {
            (, uint256 rTransferAmount, , , , , ) = _getValues(tAmount);
            return rTransferAmount;
        }
    }

    function tokenFromReflection(uint256 rAmount)
        public
        view
        returns (uint256)
    {
        require(
            rAmount <= _rTotal,
            "Amount must be less than total reflections"
        );
        uint256 currentRate = _getRate();
        return rAmount.div(currentRate);
    }

    function excludeFromReward(address account) public onlyOwner {
        require(!_isExcluded[account], "Account is already excluded");
        if (_rOwned[account] > 0) {
            _tOwned[account] = tokenFromReflection(_rOwned[account]);
        }
        _isExcluded[account] = true;
        _excluded.push(account);
    }

    function includeInReward(address account) external onlyOwner {
        require(_isExcluded[account], "Account is already included");
        for (uint256 i = 0; i < _excluded.length; i++) {
            if (_excluded[i] == account) {
                _excluded[i] = _excluded[_excluded.length - 1];
                _tOwned[account] = 0;
                _isExcluded[account] = false;
                _excluded.pop();
                break;
            }
        }
    }

    function _transferBothExcluded(
        address sender,
        address recipient,
        uint256 tAmount
    ) private {
        (
            uint256 rAmount,
            uint256 rTransferAmount,
            uint256 rFee,
            uint256 tTransferAmount,
            uint256 tFee,
            uint256 tLiquidity,
            uint256 tCharity
        ) = _getValues(tAmount);
        _tOwned[sender] = _tOwned[sender].sub(tAmount);
        _rOwned[sender] = _rOwned[sender].sub(rAmount);
        _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount);
        _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
        _takeLiquidityAndMarketing(tLiquidity);
        _takeCharity(tCharity);
        _reflectFee(rFee, tFee);
        emit Transfer(sender, recipient, tTransferAmount);
    }

    function excludeFromFee(address account) public onlyOwner {
        _isExcludedFromFee[account] = true;
    }

    function includeInFee(address account) public onlyOwner {
        _isExcludedFromFee[account] = false;
    }

    function setSellFeePercent(
        uint256 tFee,
        uint256 lFee,
        uint256 mFee,
        uint256 cFee
    ) external onlyOwner {
        _sellTaxFee = tFee;
        _sellLiquidityFee = lFee;
        _sellMarketingFee = mFee;
        _sellCharityFee = cFee;
    }

    function setBuyFeePercent(
        uint256 tFee,
        uint256 lFee,
        uint256 mFee,
        uint256 cFee
    ) external onlyOwner {
        _buyTaxFee = tFee;
        _buyLiquidityFee = lFee;
        _buyMarketingFee = mFee;
        _buyChairtyFee = cFee;
    }

    function setMaxTxPercent(uint256 maxTxPercent) external onlyOwner {
        _maxTxAmount = maxTxPercent * 10**_decimals;
    }

    function setMaxBalance(uint256 maxBalancePercent) external onlyOwner {
        _maxWalletBalance = maxBalancePercent * 10**_decimals;
    }

    function setMarketingWalletAddress(address _addr) external onlyOwner {
        _marketingWalletAddress = _addr;
    }

    function setCharityWalletAddress(address _addr) external onlyOwner {
        _charityWalletAddress = _addr;
    }

    function setNumTokensSellToAddToLiquidity(uint256 amount)
        external
        onlyOwner
    {
        numTokensSellToAddToLiquidity = amount * 10**_decimals;
    }

    function setRouterAddress(address newRouter) external onlyOwner {
        IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(newRouter);
        uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory())
            .createPair(address(this), _uniswapV2Router.WETH());
        uniswapV2Router = _uniswapV2Router;
    }

    function setSwapAndLiquifyEnabled(bool _enabled) external onlyOwner {
        swapAndLiquifyEnabled = _enabled;
        emit SwapAndLiquifyEnabledUpdated(_enabled);
    }

     //Remove from Blacklist
    function removeFromBlackList(address account) external onlyOwner {
    _isBlacklisted[account] = false;
    }

     //Add to Blacklist
    function addToBlackList(address account) external onlyOwner {
    require(account != owner(),"Owner address can not blacklisted");
    _isBlacklisted[account] = true;
    }

    //to recieve ETH from uniswapV2Router when swaping
    receive() external payable {}

    // to withdraw stucked ETH
    function withdrawStuckedFunds(uint256 amount) external onlyOwner {
        // This is the current recommended method to use.
        (bool sent, ) = _owner.call{value: amount}("");
        require(sent, "Failed to send ETH");
    }

    // Withdraw stuked tokens 
    function withdrawStuckedTokens(address tokenAddress, uint256 tokens) external onlyOwner returns (bool success){
        return IERC20(tokenAddress).transfer(msg.sender, tokens);
    }

    function _reflectFee(uint256 rFee, uint256 tFee) private {
        _rTotal = _rTotal.sub(rFee);
        _tFeeTotal = _tFeeTotal.add(tFee);
    }

    function _getValues(uint256 tAmount)
        private
        view
        returns (
            uint256,
            uint256,
            uint256,
            uint256,
            uint256,
            uint256,
            uint256
        )
    {
        (
            uint256 tTransferAmount,
            uint256 tFee,
            uint256 tLiquidity,
            uint256 tCharity
        ) = _getTValues(tAmount);
        (uint256 rAmount, uint256 rTransferAmount, uint256 rFee) = _getRValues(
            tAmount,
            tFee,
            tLiquidity,
            tCharity,
            _getRate()
        );
        return (
            rAmount,
            rTransferAmount,
            rFee,
            tTransferAmount,
            tFee,
            tLiquidity,
            tCharity
        );
    }

    function _getTValues(uint256 tAmount)
        private
        view
        returns (
            uint256,
            uint256,
            uint256,
            uint256
        )
    {
        uint256 tFee = calculateTaxFee(tAmount);
        uint256 tLiquidity = calculateLiquidityAndMarketingFee(tAmount);
        uint256 tCharity = calculateCharityFee(tAmount);
        uint256 tTransferAmount = tAmount.sub(tFee).sub(tLiquidity).sub(
            tCharity
        );
        return (tTransferAmount, tFee, tLiquidity, tCharity);
    }

    function _getRValues(
        uint256 tAmount,
        uint256 tFee,
        uint256 tLiquidity,
        uint256 tCharity,
        uint256 currentRate
    )
        private
        pure
        returns (
            uint256,
            uint256,
            uint256
        )
    {
        uint256 rAmount = tAmount.mul(currentRate);
        uint256 rFee = tFee.mul(currentRate);
        uint256 rLiquidity = tLiquidity.mul(currentRate);
        uint256 rCharity = tCharity.mul(currentRate);
        uint256 rTransferAmount = rAmount.sub(rFee).sub(rLiquidity).sub(
            rCharity
        );
        return (rAmount, rTransferAmount, rFee);
    }

    function _getRate() private view returns (uint256) {
        (uint256 rSupply, uint256 tSupply) = _getCurrentSupply();
        return rSupply.div(tSupply);
    }

    function _getCurrentSupply() private view returns (uint256, uint256) {
        uint256 rSupply = _rTotal;
        uint256 tSupply = _tTotal;
        for (uint256 i = 0; i < _excluded.length; i++) {
            if (
                _rOwned[_excluded[i]] > rSupply ||
                _tOwned[_excluded[i]] > tSupply
            ) return (_rTotal, _tTotal);
            rSupply = rSupply.sub(_rOwned[_excluded[i]]);
            tSupply = tSupply.sub(_tOwned[_excluded[i]]);
        }
        if (rSupply < _rTotal.div(_tTotal)) return (_rTotal, _tTotal);
        return (rSupply, tSupply);
    }

    function _takeLiquidityAndMarketing(uint256 tLiquidityAndMarketing)
        private
    {
        uint256 currentRate = _getRate();
        uint256 rLiquidityAndMarketing = tLiquidityAndMarketing.mul(
            currentRate
        );
        _rOwned[address(this)] = _rOwned[address(this)].add(
            rLiquidityAndMarketing
        );
        if (_isExcluded[address(this)])
            _tOwned[address(this)] = _tOwned[address(this)].add(
                tLiquidityAndMarketing
            );
    }

    function _takeCharity(uint256 tCharity) private {
        uint256 currentRate = _getRate();
        uint256 rCharity = tCharity.mul(currentRate);
        _rOwned[_charityWalletAddress] = _rOwned[_charityWalletAddress].add(
            rCharity
        );
        if (_isExcluded[_charityWalletAddress])
            _tOwned[_charityWalletAddress] = _tOwned[_charityWalletAddress].add(
                tCharity
            );
    }

    function calculateTaxFee(uint256 _amount) private view returns (uint256) {
        return _amount.mul(_taxFee).div(10**2);
    }

    function calculateCharityFee(uint256 _amount)
        private
        view
        returns (uint256)
    {
        return _amount.mul(_charityFee).div(10**2);
    }

    function calculateLiquidityAndMarketingFee(uint256 _amount)
        private
        view
        returns (uint256)
    {
        return _amount.mul((_liquidityFee.add(_marketingFee))).div(10**2);
    }

    function removeAllFee() private {
        _previousTaxFee = _taxFee;
        _previousMarketingFee = _marketingFee;
        _previousLiquidityFee = _liquidityFee;
        _previousCharityFee = _charityFee;

        _taxFee = 0;
        _marketingFee = 0;
        _liquidityFee = 0;
        _charityFee = 0;
    }

    function restoreAllFee() private {
        _taxFee = _previousTaxFee;
        _marketingFee = _previousMarketingFee;
        _liquidityFee = _previousLiquidityFee;
        _charityFee = _previousCharityFee;
    }

    function isExcludedFromFee(address account) public view returns (bool) {
        return _isExcludedFromFee[account];
    }

    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(!_isBlacklisted[from] && !_isBlacklisted[to], "This address is blacklisted");
        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");
        if (from != owner() && to != owner())
            require(
                amount <= _maxTxAmount,
                "Transfer amount exceeds the maxTxAmount."
            );
        if (from != owner() && to != uniswapV2Pair)
            require(
                balanceOf(to).add(amount) <= _maxWalletBalance,
                "Balance is exceeding maxWalletBalance"
            );

        uint256 contractTokenBalance = balanceOf(address(this));

        if (contractTokenBalance >= _maxTxAmount) {
            contractTokenBalance = _maxTxAmount;
        }

        bool overMinTokenBalance = contractTokenBalance >=
            numTokensSellToAddToLiquidity;
        if (
            overMinTokenBalance &&
            !inSwapAndLiquify &&
            from != uniswapV2Pair &&
            swapAndLiquifyEnabled
        ) {
            contractTokenBalance = numTokensSellToAddToLiquidity;
            swapAndLiquify(contractTokenBalance);
        }

        bool takeFee = true;
        if (_isExcludedFromFee[from] || _isExcludedFromFee[to]) {
            takeFee = false;
        } else {
            if (from == uniswapV2Pair) {
                // Buy
                _taxFee = _buyTaxFee;
                _liquidityFee = _buyLiquidityFee;
                _marketingFee = _buyMarketingFee;
                _charityFee = _buyChairtyFee;
            } else if (to == uniswapV2Pair) {
                // Sell
                _taxFee = _sellTaxFee;
                _liquidityFee = _sellLiquidityFee;
                _marketingFee = _sellMarketingFee;
                _charityFee = _sellCharityFee;
            } else {
                // Transfer
                _taxFee = _buyTaxFee;
                _liquidityFee = _buyLiquidityFee;
                _marketingFee = _buyMarketingFee;
                _charityFee = _buyChairtyFee;
            }
        }

        _tokenTransfer(from, to, amount, takeFee);
    }

    function swapAndLiquify(uint256 contractTokenBalance) private lockTheSwap {
        uint256 tFee = _marketingFee.add(_liquidityFee);
        uint256 marketingTokens = contractTokenBalance.div(tFee).mul(
            _marketingFee
        );
        uint256 liquidityTokens = contractTokenBalance.sub(marketingTokens);
        tFee = _marketingFee.add(_liquidityFee.div(2));
        uint256 half = liquidityTokens.div(2);
        uint256 otherHalf = liquidityTokens.sub(half);
        uint256 initialBalance = address(this).balance;
        uint256 swapTokens = marketingTokens.add(half);
        swapTokensForEth(swapTokens);
        uint256 newBalance = address(this).balance.sub(initialBalance);
        uint256 marketingFunds = newBalance.div(tFee).mul(_marketingFee);
        (bool success, ) = payable(_marketingWalletAddress).call{
            value: marketingFunds,
            gas: 30000
        }("");
        require(success, " _marketingWalletAddress transfer is reverted");
        uint256 halfFunds = newBalance.div(tFee).mul(_liquidityFee.div(2));
        addLiquidity(otherHalf, halfFunds);
        emit SwapAndLiquify(half, halfFunds, otherHalf);
    }

    function swapTokensForEth(uint256 tokenAmount) private {
        address[] memory path = new address[](2);
        path[0] = address(this);
        path[1] = uniswapV2Router.WETH();
        _approve(address(this), address(uniswapV2Router), tokenAmount);
        uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
            tokenAmount,
            0, // accept any amount of ETH
            path,
            address(this),
            block.timestamp
        );
    }

    function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private {
        _approve(address(this), address(uniswapV2Router), tokenAmount);
        uniswapV2Router.addLiquidityETH{value: ethAmount}(
            address(this),
            tokenAmount,
            0, // slippage is unavoidable
            0, // slippage is unavoidable
            owner(),
            block.timestamp
        );
    }

    function _tokenTransfer(
        address sender,
        address recipient,
        uint256 amount,
        bool takeFee
    ) private {
        if (!takeFee) removeAllFee();

        if (_isExcluded[sender] && !_isExcluded[recipient]) {
            _transferFromExcluded(sender, recipient, amount);
        } else if (!_isExcluded[sender] && _isExcluded[recipient]) {
            _transferToExcluded(sender, recipient, amount);
        } else if (!_isExcluded[sender] && !_isExcluded[recipient]) {
            _transferStandard(sender, recipient, amount);
        } else if (_isExcluded[sender] && _isExcluded[recipient]) {
            _transferBothExcluded(sender, recipient, amount);
        } else {
            _transferStandard(sender, recipient, amount);
        }

        if (!takeFee) restoreAllFee();
    }

    function _transferStandard(
        address sender,
        address recipient,
        uint256 tAmount
    ) private {
        (
            uint256 rAmount,
            uint256 rTransferAmount,
            uint256 rFee,
            uint256 tTransferAmount,
            uint256 tFee,
            uint256 tLiquidity,
            uint256 tCharity
        ) = _getValues(tAmount);
        _rOwned[sender] = _rOwned[sender].sub(rAmount);
        _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
        _takeLiquidityAndMarketing(tLiquidity);
        _takeCharity(tCharity);
        _reflectFee(rFee, tFee);
        emit Transfer(sender, recipient, tTransferAmount);
    }

    function _transferToExcluded(
        address sender,
        address recipient,
        uint256 tAmount
    ) private {
        (
            uint256 rAmount,
            uint256 rTransferAmount,
            uint256 rFee,
            uint256 tTransferAmount,
            uint256 tFee,
            uint256 tLiquidity,
            uint256 tCharity
        ) = _getValues(tAmount);
        _rOwned[sender] = _rOwned[sender].sub(rAmount);
        _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount);
        _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
        _takeLiquidityAndMarketing(tLiquidity);
        _takeCharity(tCharity);
        _reflectFee(rFee, tFee);
        emit Transfer(sender, recipient, tTransferAmount);
    }

    function _transferFromExcluded(
        address sender,
        address recipient,
        uint256 tAmount
    ) private {
        (
            uint256 rAmount,
            uint256 rTransferAmount,
            uint256 rFee,
            uint256 tTransferAmount,
            uint256 tFee,
            uint256 tLiquidity,
            uint256 tCharity
        ) = _getValues(tAmount);
        _tOwned[sender] = _tOwned[sender].sub(tAmount);
        _rOwned[sender] = _rOwned[sender].sub(rAmount);
        _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
        _takeLiquidityAndMarketing(tLiquidity);
        _takeCharity(tCharity);
        _reflectFee(rFee, tFee);
        emit Transfer(sender, recipient, tTransferAmount);
    }
}
receive() external payable {}
//to recieve ETH from uniswapV2Router when swaping