// SPDX-License-Identifier: Unlicensed
pragma solidity ^0.8.6;

    abstract contract Context {
        function _msgSender() internal view virtual returns (address payable) {
            return payable(msg.sender);
        }

        function _msgData() internal view virtual returns (bytes memory) {
            this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
            return msg.data;
        }
    }

    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);
    }

    library SafeMath {

        function add(uint256 a, uint256 b) internal pure returns (uint256) {
            uint256 c = a + b;
            require(c >= a, "SafeMath: addition overflow");

            return c;
        }

        function sub(uint256 a, uint256 b) internal pure returns (uint256) {
            return sub(a, b, "SafeMath: subtraction overflow");
        }

        function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
            require(b <= a, errorMessage);
            uint256 c = a - b;

            return c;
        }

        function mul(uint256 a, uint256 b) internal pure returns (uint256) {
            if (a == 0) {
                return 0;
            }

            uint256 c = a * b;
            require(c / a == b, "SafeMath: multiplication overflow");

            return c;
        }

        function div(uint256 a, uint256 b) internal pure returns (uint256) {
            return div(a, b, "SafeMath: division by zero");
        }

        function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
            require(b > 0, errorMessage);
            uint256 c = a / b;
            // assert(a == b * c + a % b); // There is no case in which this doesn't hold

            return c;
        }

        function mod(uint256 a, uint256 b) internal pure returns (uint256) {
            return mod(a, b, "SafeMath: modulo by zero");
        }

        function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
            require(b != 0, errorMessage);
            return a % b;
        }
    }

    library Address {
        
        function isContract(address account) internal view returns (bool) {
            // 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
            // for accounts without code, i.e. `keccak256('')`
            bytes32 codehash;
            bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
            // solhint-disable-next-line no-inline-assembly
            assembly { codehash := extcodehash(account) }
            return (codehash != accountHash && codehash != 0x0);
        }

        function sendValue(address payable recipient, uint256 amount) internal {
            require(address(this).balance >= amount, "Address: insufficient balance");

            // solhint-disable-next-line avoid-low-level-calls, avoid-call-value
            (bool success, ) = recipient.call{ value: amount }("");
            require(success, "Address: unable to send value, recipient may have reverted");
        }

        function functionCall(address target, bytes memory data) internal returns (bytes memory) {
            return functionCall(target, data, "Address: low-level call failed");
        }

        function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
            return _functionCallWithValue(target, data, 0, errorMessage);
        }

        function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
            return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
        }

        function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {
            require(address(this).balance >= value, "Address: insufficient balance for call");
            return _functionCallWithValue(target, data, value, errorMessage);
        }

        function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) {
            require(isContract(target), "Address: call to non-contract");

            // solhint-disable-next-line avoid-low-level-calls
            (bool success, bytes memory returndata) = target.call{ value: weiValue }(data);
            if (success) {
                return returndata;
            } else {
                // Look for revert reason and bubble it up if present
                if (returndata.length > 0) {
                    // The easiest way to bubble the revert reason is using memory via assembly

                    // solhint-disable-next-line no-inline-assembly
                    assembly {
                        let returndata_size := mload(returndata)
                        revert(add(32, returndata), returndata_size)
                    }
                } else {
                    revert(errorMessage);
                }
            }
        }
    }

    contract Ownable is Context {
        address private _owner;
        address private _previousOwner;

        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;
        }
    }  

    interface IUniswapV2Factory {
        event PairCreated(address indexed token0, address indexed token1, address pair, uint);

        function feeTo() external view returns (address);
        function feeToSetter() external view returns (address);

        function getPair(address tokenA, address tokenB) external view returns (address pair);
        function allPairs(uint) external view returns (address pair);
        function allPairsLength() external view returns (uint);

        function createPair(address tokenA, address tokenB) external returns (address pair);

        function setFeeTo(address) external;
        function setFeeToSetter(address) external;
    } 

    interface IUniswapV2Pair {
        event Approval(address indexed owner, address indexed spender, uint value);
        event Transfer(address indexed from, address indexed to, uint value);

        function name() external pure returns (string memory);
        function symbol() external pure returns (string memory);
        function decimals() external pure returns (uint8);
        function totalSupply() external view returns (uint);
        function balanceOf(address owner) external view returns (uint);
        function allowance(address owner, address spender) external view returns (uint);

        function approve(address spender, uint value) external returns (bool);
        function transfer(address to, uint value) external returns (bool);
        function transferFrom(address from, address to, uint value) external returns (bool);

        function DOMAIN_SEPARATOR() external view returns (bytes32);
        function PERMIT_TYPEHASH() external pure returns (bytes32);
        function nonces(address owner) external view returns (uint);

        function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;

        event Mint(address indexed sender, uint amount0, uint amount1);
        event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
        event Swap(
            address indexed sender,
            uint amount0In,
            uint amount1In,
            uint amount0Out,
            uint amount1Out,
            address indexed to
        );
        event Sync(uint112 reserve0, uint112 reserve1);

        function MINIMUM_LIQUIDITY() external pure returns (uint);
        function factory() external view returns (address);
        function token0() external view returns (address);
        function token1() external view returns (address);
        function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
        function price0CumulativeLast() external view returns (uint);
        function price1CumulativeLast() external view returns (uint);
        function kLast() external view returns (uint);

        function mint(address to) external returns (uint liquidity);
        function burn(address to) external returns (uint amount0, uint amount1);
        function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external;
        function skim(address to) external;
        function sync() external;

        function initialize(address, address) external;
    }

    interface IUniswapV2Router01 {
        function factory() external pure returns (address);
        function WETH() external pure returns (address);

        function addLiquidity(
            address tokenA,
            address tokenB,
            uint amountADesired,
            uint amountBDesired,
            uint amountAMin,
            uint amountBMin,
            address to,
            uint deadline
        ) external returns (uint amountA, uint amountB, uint liquidity);
        function addLiquidityETH(
            address token,
            uint amountTokenDesired,
            uint amountTokenMin,
            uint amountETHMin,
            address to,
            uint deadline
        ) external payable returns (uint amountToken, uint amountETH, uint liquidity);
        function removeLiquidity(
            address tokenA,
            address tokenB,
            uint liquidity,
            uint amountAMin,
            uint amountBMin,
            address to,
            uint deadline
        ) external returns (uint amountA, uint amountB);
        function removeLiquidityETH(
            address token,
            uint liquidity,
            uint amountTokenMin,
            uint amountETHMin,
            address to,
            uint deadline
        ) external returns (uint amountToken, uint amountETH);
        function removeLiquidityWithPermit(
            address tokenA,
            address tokenB,
            uint liquidity,
            uint amountAMin,
            uint amountBMin,
            address to,
            uint deadline,
            bool approveMax, uint8 v, bytes32 r, bytes32 s
        ) external returns (uint amountA, uint amountB);
        function removeLiquidityETHWithPermit(
            address token,
            uint liquidity,
            uint amountTokenMin,
            uint amountETHMin,
            address to,
            uint deadline,
            bool approveMax, uint8 v, bytes32 r, bytes32 s
        ) external returns (uint amountToken, uint amountETH);
        function swapExactTokensForTokens(
            uint amountIn,
            uint amountOutMin,
            address[] calldata path,
            address to,
            uint deadline
        ) external returns (uint[] memory amounts);
        function swapTokensForExactTokens(
            uint amountOut,
            uint amountInMax,
            address[] calldata path,
            address to,
            uint deadline
        ) external returns (uint[] memory amounts);
        function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline)
            external
            payable
            returns (uint[] memory amounts);
        function swapTokensForExactETH(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline)
            external
            returns (uint[] memory amounts);
        function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline)
            external
            returns (uint[] memory amounts);
        function swapETHForExactTokens(uint amountOut, address[] calldata path, address to, uint deadline)
            external
            payable
            returns (uint[] memory amounts);

        function quote(uint amountA, uint reserveA, uint reserveB) external pure returns (uint amountB);
        function getAmountOut(uint amountIn, uint reserveIn, uint reserveOut) external pure returns (uint amountOut);
        function getAmountIn(uint amountOut, uint reserveIn, uint reserveOut) external pure returns (uint amountIn);
        function getAmountsOut(uint amountIn, address[] calldata path) external view returns (uint[] memory amounts);
        function getAmountsIn(uint amountOut, address[] calldata path) external view returns (uint[] memory amounts);
    }

    interface IUniswapV2Router02 is IUniswapV2Router01 {
        function removeLiquidityETHSupportingFeeOnTransferTokens(
            address token,
            uint liquidity,
            uint amountTokenMin,
            uint amountETHMin,
            address to,
            uint deadline
        ) external returns (uint amountETH);
        function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(
            address token,
            uint liquidity,
            uint amountTokenMin,
            uint amountETHMin,
            address to,
            uint deadline,
            bool approveMax, uint8 v, bytes32 r, bytes32 s
        ) external returns (uint amountETH);

        function swapExactTokensForTokensSupportingFeeOnTransferTokens(
            uint amountIn,
            uint amountOutMin,
            address[] calldata path,
            address to,
            uint deadline
        ) external;
        function swapExactETHForTokensSupportingFeeOnTransferTokens(
            uint amountOutMin,
            address[] calldata path,
            address to,
            uint deadline
        ) external payable;
        function swapExactTokensForETHSupportingFeeOnTransferTokens(
            uint amountIn,
            uint amountOutMin,
            address[] calldata path,
            address to,
            uint deadline
        ) external;
    }

    // Contract implementarion
    contract APEFOOD 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;
        address[] private _excluded;
        
        mapping(address => uint256) private buycooldown;
        
        mapping (address => bool) private _isBlackListedBot;
        address[] private _blackListedBots;
    
        uint256 private constant MAX = ~uint256(0);
        uint256 private _tTotal = 1000000 * 10**6 * 10**9;
        uint256 private _rTotal = (MAX - (MAX % _tTotal));
        uint256 private _tFeeTotal;

        string private _name = 'Ape Food';
        string private _symbol = 'APEFOOD';
        uint8 private _decimals = 9;
        
        uint256 private _taxFee = 4; //4% redistribution to all holders (including burn wallet)
        uint256 private _devFee = 6; //3% marketing && 3% dev respectively
        
        bool private inSwap = false;
        bool private swapEnabled = false;
        bool private cooldownEnabled = false;

        address payable public _devWalletAddress;
        address payable public _marketingWalletAddress;

        IUniswapV2Router02 public uniswapV2Router;
        address public uniswapV2Pair;

        uint256 private _maxTxAmount = 3000 * 10**6 * 10**9;
        // We will set a minimum amount of tokens to be swaped => 50k
        uint256 private _numOfTokensToExchangeFordev = 5 * 10**4 * 10**9;

        event MinTokensBeforeSwapUpdated(uint256 minTokensBeforeSwap);
        event SwapEnabledUpdated(bool enabled);

        modifier lockTheSwap {
            inSwap = true;
            _;
            inSwap = false;
        }

        constructor (address payable devWalletAddress, address payable marketingWalletAddress) {
            _devWalletAddress = devWalletAddress;
            _marketingWalletAddress = marketingWalletAddress;
            _rOwned[_msgSender()] = _rTotal;

            // Exclude owner and this contract from fee
            _isExcludedFromFee[owner()] = true;
            _isExcludedFromFee[address(this)] = true;

            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 (uint8) {
            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 isExcluded(address account) public view returns (bool) {
            return _isExcluded[account];
        }

        function setExcludeFromFee(address account, bool excluded) external onlyOwner() {
            _isExcludedFromFee[account] = excluded;
        }
        
        function addBotToBlackList(address account) external onlyOwner() {
            require(account != 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D, 'We can not blacklist Uniswap router.');
            require(!_isBlackListedBot[account], "Account is already blacklisted");
            _isBlackListedBot[account] = true;
            _blackListedBots.push(account);
        }

        function removeBotFromBlackList(address account) external onlyOwner() {
            require(_isBlackListedBot[account], "Account is not blacklisted");
            for (uint256 i = 0; i < _blackListedBots.length; i++) {
                if (_blackListedBots[i] == account) {
                    _blackListedBots[i] = _blackListedBots[_blackListedBots.length - 1];
                    _isBlackListedBot[account] = false;
                    _blackListedBots.pop();
                    break;
                }
            }
        }

        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 addLiquidity() external onlyOwner() {
            IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
            uniswapV2Router = _uniswapV2Router;
            _approve(address(this), address(uniswapV2Router), _tTotal);
            uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this), _uniswapV2Router.WETH());
            uniswapV2Router.addLiquidityETH{value: address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp);
            swapEnabled = true;
            cooldownEnabled = true;
            IERC20(uniswapV2Pair).approve(address(uniswapV2Router),type(uint256).max);
        }
        
        function removeAllFee() private {
            if(_taxFee == 0 && _devFee == 0) return;
            
            _taxFee = 0;
            _devFee = 0;
        }
    
        function restoreAllFee() private {
            _taxFee = 4;
            _devFee = 6;
        }
    
        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 sender, address recipient, uint256 amount) private {
            require(sender != address(0), "ERC20: transfer from the zero address");
            require(recipient != address(0), "ERC20: transfer to the zero address");
            require(amount > 0, "Transfer amount must be greater than zero");
            
            require(!_isBlackListedBot[recipient], "Beep Boop - GTFO");
            require(!_isBlackListedBot[msg.sender], "Beep Boop - GTFO");
            require(!_isBlackListedBot[sender], "Beep Boop - GTFO");
            
            if(sender == uniswapV2Pair && recipient != address(uniswapV2Router) && recipient != owner()) {
                require(amount <= _maxTxAmount, "Transfer amount exceeds the maxTxAmount.");
                if(cooldownEnabled)
                    require(buycooldown[recipient] < block.timestamp);
                    buycooldown[recipient] = block.timestamp + (30 seconds);
            }


            uint256 contractTokenBalance = balanceOf(address(this));
            
            if(contractTokenBalance >= _maxTxAmount) {
                contractTokenBalance = _maxTxAmount;
            }
            
            bool overMinTokenBalance = contractTokenBalance >= _numOfTokensToExchangeFordev;
            if (!inSwap && swapEnabled && overMinTokenBalance && sender != uniswapV2Pair) {
                // We need to swap the current tokens to ETH and send to the dev wallet
                swapTokensForEth(contractTokenBalance);
                
                uint256 contractETHBalance = address(this).balance;
                if(contractETHBalance > 0) {
                    sendETHToTeam(address(this).balance);
                }
            }
            
            //indicates if fee should be deducted from transfer
            bool takeFee = true;
            
            //if any account belongs to _isExcludedFromFee account then remove the fee
            if(_isExcludedFromFee[sender] || _isExcludedFromFee[recipient]){
                takeFee = false;
            }
            
            //transfer amount, it will take tax and dev fee
            _tokenTransfer(sender,recipient,amount,takeFee);
        }

        function swapTokensForEth(uint256 tokenAmount) private lockTheSwap{
            // 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 sendETHToTeam(uint256 amount) private {
            _devWalletAddress.transfer(amount.div(2));
            _marketingWalletAddress.transfer(amount.div(2));
        }
        
        // We are exposing these functions to be able to manual swap and send
        // in case the token is highly valued and 50k becomes too much
        function manualSwap() external {
            require(_msgSender() == _devWalletAddress || _msgSender() == _marketingWalletAddress);
            uint256 contractBalance = balanceOf(address(this));
            swapTokensForEth(contractBalance);
        }
        
        function manualSend() external {
            require(_msgSender() == _devWalletAddress || _msgSender() == _marketingWalletAddress);
            uint256 contractETHBalance = address(this).balance;
            sendETHToTeam(contractETHBalance);
        }
        
        function setCooldownEnabled(bool onoff) external onlyOwner() {
            cooldownEnabled = onoff;
        }
        
        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 tdev) = _getValues(tAmount);
            _rOwned[sender] = _rOwned[sender].sub(rAmount);
            _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
            _takedev(tdev);
            _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 tdev) = _getValues(tAmount);
            _rOwned[sender] = _rOwned[sender].sub(rAmount);
            _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount);
            _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);    
            _takedev(tdev);
            _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 tdev) = _getValues(tAmount);
            _tOwned[sender] = _tOwned[sender].sub(tAmount);
            _rOwned[sender] = _rOwned[sender].sub(rAmount);
            _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount); 
            _takedev(tdev); 
            _reflectFee(rFee, tFee);
            emit Transfer(sender, recipient, tTransferAmount);
        }

        function _transferBothExcluded(address sender, address recipient, uint256 tAmount) private {
            (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, 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);   
            _takedev(tdev);
            _reflectFee(rFee, tFee);
            emit Transfer(sender, recipient, tTransferAmount);
        }

        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 _reflectFee(uint256 rFee, uint256 tFee) private {
            _rTotal = _rTotal.sub(rFee);
            _tFeeTotal = _tFeeTotal.add(tFee);
        }

         //to recieve ETH from uniswapV2Router when swaping
        receive() external payable {}

        function _getValues(uint256 tAmount) private view returns (uint256, uint256, uint256, uint256, uint256, uint256) {
            (uint256 tTransferAmount, uint256 tFee, uint256 tDev) = _getTValues(tAmount, _taxFee, _devFee);
            uint256 currentRate =  _getRate();
            (uint256 rAmount, uint256 rTransferAmount, uint256 rFee) = _getRValues(tAmount, tFee, tDev, currentRate);
            return (rAmount, rTransferAmount, rFee, tTransferAmount, tFee, tDev);
        }

        function _getTValues(uint256 tAmount, uint256 taxFee, uint256 devFee) private pure returns (uint256, uint256, uint256) {
            uint256 tFee = tAmount.mul(taxFee).div(100);
            uint256 tdev = tAmount.mul(devFee).div(100);
            uint256 tTransferAmount = tAmount.sub(tFee).sub(tFee).sub(tdev); //subtract tFee 2x for burn + redistribution
            return (tTransferAmount, tFee, tdev);
        }

        function _getRValues(uint256 tAmount, uint256 tFee, uint256 tDev, uint256 currentRate) private pure returns (uint256, uint256, uint256) {
            uint256 rAmount = tAmount.mul(currentRate);
            uint256 rFee = tFee.mul(currentRate);
            uint256 rDev = tDev.mul(currentRate);
            uint256 rTransferAmount = rAmount.sub(rFee).sub(rFee).sub(rDev); //subtract rFee 2x for burn + redistribution
            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 _setMaxTxAmount(uint256 maxTxAmount) external onlyOwner() {
            require(maxTxAmount >= (3000 * 10**6 * 10**9) , 'maxTxAmount should be greater than 3 billion');
            _maxTxAmount = maxTxAmount;
        }
    }