/**
 *Submitted for verification at BscScan.com on 2021-08-21
*/

pragma solidity ^0.8.4;
pragma experimental ABIEncoderV2;

// SPDX-License-Identifier:MIT

interface IBEP20 {

    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);
}

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;
    }
}

contract Ownable is Context {
    address payable private _owner;
    address payable private _previousOwner;
    uint256 private _lockTime;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    constructor (address ownerAddress) {
        _owner = payable(ownerAddress);
        emit OwnershipTransferred(address(0), _owner);
    }

    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 = payable(address(0));
    }

    function transferOwnership(address payable newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        emit OwnershipTransferred(_owner, newOwner);
        _owner = newOwner;
    }

    function geUnlockTime() public view returns (uint256) {
        return _lockTime;
    }

    //Locks the contract for owner for the amount of time provided
    function lock(uint256 time) public virtual onlyOwner {
        _previousOwner = _owner;
        _owner = payable(address(0));
        _lockTime = block.timestamp + time;
        emit OwnershipTransferred(_owner, address(0));
    }

    //Unlocks the contract for owner when _lockTime is exceeds
    function unlock() public virtual {
        require(_previousOwner == msg.sender, "You don't have permission to unlock");
        require(block.timestamp > _lockTime , "Contract is locked until defined days");
        emit OwnershipTransferred(_owner, _previousOwner);
        _owner = _previousOwner;
        _previousOwner = payable(address(0));
    }
}

interface IPancakeFactory {
    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 IPancakePair {
    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 IPancakeRouter01 {
    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 IPancakeRouter02 is IPancakeRouter01 {
    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;
}

library Utils {
    
    using SafeMath for uint256;

    function swapTokensForEth(
        address routerAddress,
        uint256 tokenAmount
    ) internal {
        IPancakeRouter02 pancakeRouter = IPancakeRouter02(routerAddress);

        // generate the pancake pair path of token -> weth
        address[] memory path = new address[](2);
        path[0] = address(this);
        path[1] = pancakeRouter.WETH();

        // make the swap
        pancakeRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(
            tokenAmount,
            0, // accept any amount of BNB
            path,
            address(this),
            block.timestamp
        );
    }

    function swapETHForTokens(
        address routerAddress,
        address recipient,
        uint256 ethAmount
    ) internal {
        IPancakeRouter02 pancakeRouter = IPancakeRouter02(routerAddress);

        // generate the pancake pair path of token -> weth
        address[] memory path = new address[](2);
        path[0] = pancakeRouter.WETH();
        path[1] = address(this);

        // make the swap
        pancakeRouter.swapExactETHForTokensSupportingFeeOnTransferTokens{value: ethAmount}(
            0, // accept any amount of BNB
            path,
            address(recipient),
            block.timestamp + 360
        );
    }

    function addLiquidity(
        address routerAddress,
        address owner,
        uint256 tokenAmount,
        uint256 ethAmount
    ) internal {
        IPancakeRouter02 pancakeRouter = IPancakeRouter02(routerAddress);

        // add the liquidity
        pancakeRouter.addLiquidityETH{value : ethAmount}(
            address(this),
            tokenAmount,
            0, // slippage is unavoidable
            0, // slippage is unavoidable
            owner,
            block.timestamp + 360
        );
    }
}


    // Modified by team BloctechSolutions.com 


contract DRIP is Context, IBEP20, 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) private _isExcludedFromMaxTx;

    address[] private _excluded;

    uint256 private constant MAX = ~uint256(0);
    uint256 private _tTotal = 99000 * 10**6 * 1e9;
    uint256 private _rTotal = (MAX - (MAX % _tTotal));
    uint256 private _tFeeTotal;

    string private _name = "Do Right and Invest Properly";
    string private _symbol = "DRIP";
    uint8 private _decimals = 9;

    IPancakeRouter02 public pancakeRouter;
    address public immutable pancakePair;
    address payable public buyBackWallet;
    address payable public marketWallet;
    
    uint256 public _taxFee = 0; // 1% will be distributed among holder as DRIP divideneds
    uint256 private _previousTaxFee = _taxFee;

    uint256 public _liquidityFee = 10; // 10% will be added to the liquidity pool
    uint256 private _previousLiquidityFee = _liquidityFee;
    
    uint256 public _buyBackFee = 35;  // 3.5% will go to the buyBack address 
    uint256 private _previousCharityFee = _buyBackFee;
    
    uint256 public _marketFee = 35;  // 3.5% will go to the market address 
    uint256 private _previousMarketFee = _marketFee;

    uint256 public _maxTxAmount = 3000000 * 10**6 * 10**9;
    uint256 public minTokenNumberToSell = 200000 * 10**6 * 10**9;

    bool public swapAndLiquifyEnabled = false; // should be true to turn on to liquidate the pool
    bool public reflectionFeesdiabled = false;
    bool inSwapAndLiquify = false;

    event SwapAndLiquifyEnabledUpdated(bool enabled);
    event SwapAndLiquify(
        uint256 tokensSwapped,
        uint256 ethReceived,
        uint256 tokensIntoLiqudity
    );

    event ClaimBNBSuccessfully(
        address recipient,
        uint256 ethReceived,
        uint256 nextAvailableClaimDate
    );
    
    modifier lockTheSwap {
        inSwapAndLiquify = true;
        _;
        inSwapAndLiquify = false;
    }

    constructor (
        address payable ownerAddress,
        address payable _buyBackAddress,
        address payable _marketWallet
    ) Ownable(ownerAddress) {
        _rOwned[owner()] = _rTotal;
        buyBackWallet = _buyBackAddress;
        marketWallet = _marketWallet;

        IPancakeRouter02 _pancakeRouter = IPancakeRouter02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
        // Create a pancake pair for this new token
        pancakePair = IPancakeFactory(_pancakeRouter.factory())
        .createPair(address(this), _pancakeRouter.WETH());

        // set the rest of the contract variables
        pancakeRouter = _pancakeRouter;

        //exclude owner and this contract from fee
        _isExcludedFromFee[owner()] = true;
        _isExcludedFromFee[address(this)] = true;

        // exclude from max tx
        _isExcludedFromMaxTx[owner()] = true;
        _isExcludedFromMaxTx[address(this)] = true;

        emit Transfer(address(0), owner(), _tTotal);
    }

    
    //to receive BNB from pancakeRouter when swapping
    receive() external payable {}

    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, "BEP20: 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, "BEP20: decreased allowance below zero"));
        return true;
    }

    // to manually distribute tokens to holders
    function deliver(uint256 tAmount) public {
        address sender = _msgSender();
        require(!_isExcluded[sender], "Excluded addresses cannot call this function");
        uint256 rAmount = tAmount.mul(_getRate());
        _rOwned[sender] = _rOwned[sender].sub(rAmount);
        _rTotal = _rTotal.sub(rAmount);
        _tFeeTotal = _tFeeTotal.add(tAmount);
    }

    // getter functions

    function getContractBalance() public view returns(uint256) {
        return address(this).balance;
    }

    function isExcludedFromReward(address account) public view returns (bool) {
        return _isExcluded[account];
    }

    function isExcludedFromFee(address account) public view returns (bool) {
        return _isExcludedFromFee[account];
    }

    function totalFees() public view returns (uint256) {
        return _tFeeTotal;
    }

    function reflectionFromToken(uint256 tAmount, bool deductTransferFee) public view returns (uint256) {
        require(tAmount <= _tTotal, "Amount must be less than supply");
        if (!deductTransferFee) {
            uint256 rAmount = tAmount.mul(_getRate());
            return rAmount;
        } else {
            uint256 rAmount = tAmount.mul(_getRate());
            uint256 rTransferAmount = rAmount.sub(totalFeePerTx(tAmount).mul(_getRate()));
            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);
    }

    // setter functions for Owner

    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 excluded");
        for (uint256 i = 0; i < _excluded.length; i++) {
            if (_excluded[i] == account) {
                _excluded[i] = _excluded[_excluded.length - 1];
                _rOwned[account] = _tOwned[account].mul(_getRate());
                _tOwned[account] = 0;
                _isExcluded[account] = false;
                _excluded.pop();
                break;
            }
        }
    }

    function excludeFromFee(address account) public onlyOwner {
        _isExcludedFromFee[account] = true;
    }

    function includeInFee(address account) public onlyOwner {
        _isExcludedFromFee[account] = false;
    }
    
    function setMaxTxAmount(uint256 maxTxAmount) public onlyOwner {
        _maxTxAmount = maxTxAmount;
    }
    
    function setMinTokenNumberToSell(uint256 _amount) public onlyOwner {
        minTokenNumberToSell = _amount;
    }

    function setExcludeFromMaxTx(address _address, bool value) public onlyOwner {
        _isExcludedFromMaxTx[_address] = value;
    }

    function setFeePercents(uint256 taxFee, uint256 liquidityFee, uint256 buyBackFee, uint256 marketFee) external onlyOwner {
        _taxFee = taxFee;
        _liquidityFee = liquidityFee;
        _buyBackFee = buyBackFee;
        _marketFee = marketFee;
    }

    function setSwapAndLiquifyEnabled(bool _state) public onlyOwner {
        swapAndLiquifyEnabled = _state;
        emit SwapAndLiquifyEnabledUpdated(_state);
    }
    
    function setReflectionFees(bool _state) external onlyOwner {
        reflectionFeesdiabled = _state;
    }
    
    function setBuyBackAddress(address payable _buyBackAddress) external onlyOwner {
        buyBackWallet = _buyBackAddress;
    }
    
    function setMarketAddress(address payable _marketAddress) external onlyOwner {
        marketWallet = _marketAddress;
    }
    
    function setPancakeRouter(IPancakeRouter02 _pancakeRouter) external onlyOwner {
        pancakeRouter = _pancakeRouter;
    }

    // internal functions for contract
    
    function totalFeePerTx(uint256 tAmount) internal view returns(uint256) {
        uint256 percentage = tAmount.mul(_taxFee.add(_liquidityFee).add(_buyBackFee).add(_marketFee)).div(1e3);
        return percentage;
    }

    function _reflectFee(uint256 tAmount) private {
        uint256 tFee = tAmount.mul(_taxFee).div(1e3);
        uint256 rFee = tFee.mul(_getRate());
        _rTotal = _rTotal.sub(rFee);
        _tFeeTotal = _tFeeTotal.add(tFee);
    }

    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 _takeAllFee(uint256 tAmount, uint256 currentRate) internal {
        uint256 tFee = tAmount.mul(_liquidityFee.add(_buyBackFee).add(_marketFee)).div(1e3);
        uint256 rFee = tFee.mul(currentRate);
        _rOwned[address(this)] = _rOwned[address(this)].add(rFee);
        if (_isExcluded[address(this)])
            _tOwned[address(this)] = _tOwned[address(this)].add(tFee);
        emit Transfer(_msgSender(), address(this), tFee);
    }

    function removeAllFee() private {

        _previousTaxFee = _taxFee;
        _previousLiquidityFee = _liquidityFee;
        _previousCharityFee = _buyBackFee;
        _previousMarketFee = _marketFee;

        _taxFee = 0;
        _liquidityFee = 0;
        _buyBackFee = 0;
        _marketFee = 0;
    }

    function restoreAllFee() private {
        _taxFee = _previousTaxFee;
        _liquidityFee = _previousLiquidityFee;
        _buyBackFee = _previousCharityFee;
        _marketFee = _previousMarketFee;
    }

    function _approve(address owner, address spender, uint256 amount) private {
        require(owner != address(0), "BEP20: approve from the zero address");
        require(spender != address(0), "BEP20: 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), "BEP20: transfer from the zero address");
        require(to != address(0), "BEP20: transfer to the zero address");
        require(amount > 0, "BEP20: Transfer amount must be greater than zero");

        if(!_isExcludedFromMaxTx[from] && 
            !_isExcludedFromMaxTx[to]   // by default false
        ){
            require(amount <= _maxTxAmount,"BEP20: Amount exceed max limit");
        }

        // swap and liquify
        swapAndLiquify(from, to);

        //indicates if fee should be deducted from transfer
        bool takeFee = true;

        //if any account belongs to _isExcludedFromFee account then remove the fee
        if (_isExcludedFromFee[from] || _isExcludedFromFee[to] || reflectionFeesdiabled) {
            takeFee = false;
        }

        //transfer amount, it will take tax, burn, liquidity fee
        _tokenTransfer(from, to, amount, takeFee);
    }

    //this method is responsible for taking all fee, if takeFee is true
    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 currentRate = _getRate();
        uint256 tTransferAmount = tAmount.sub(totalFeePerTx(tAmount));
        uint256 rAmount = tAmount.mul(currentRate);
        uint256 rTransferAmount = rAmount.sub(totalFeePerTx(tAmount).mul(currentRate));
        _rOwned[sender] = _rOwned[sender].sub(rAmount);
        _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
        _takeAllFee(tAmount, currentRate);
        _reflectFee(tAmount);
        emit Transfer(sender, recipient, tTransferAmount);
    }

    function _transferToExcluded(address sender, address recipient, uint256 tAmount) private {
        uint256 currentRate = _getRate();
        uint256 tTransferAmount = tAmount.sub(totalFeePerTx(tAmount));
        uint256 rAmount = tAmount.mul(currentRate);
        uint256 rTransferAmount = rAmount.sub(totalFeePerTx(tAmount).mul(currentRate));
        _rOwned[sender] = _rOwned[sender].sub(rAmount);
        _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount);
        _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
        _takeAllFee(tAmount, currentRate);
        _reflectFee(tAmount);
        emit Transfer(sender, recipient, tTransferAmount);
    }

    function _transferFromExcluded(address sender, address recipient, uint256 tAmount) private {
        uint256 currentRate = _getRate();
        uint256 tTransferAmount = tAmount.sub(totalFeePerTx(tAmount));
        uint256 rAmount = tAmount.mul(currentRate);
        uint256 rTransferAmount = rAmount.sub(totalFeePerTx(tAmount).mul(currentRate));
        _tOwned[sender] = _tOwned[sender].sub(tAmount);
        _rOwned[sender] = _rOwned[sender].sub(rAmount);
        _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
        _takeAllFee(tAmount, currentRate);
        _reflectFee(tAmount);
        emit Transfer(sender, recipient, tTransferAmount);
    }
    
    function _transferBothExcluded(address sender, address recipient, uint256 tAmount) private {
        uint256 currentRate = _getRate();
        uint256 tTransferAmount = tAmount.sub(totalFeePerTx(tAmount));
        uint256 rAmount = tAmount.mul(currentRate);
        uint256 rTransferAmount = rAmount.sub(totalFeePerTx(tAmount).mul(currentRate));
        _tOwned[sender] = _tOwned[sender].sub(tAmount);
        _rOwned[sender] = _rOwned[sender].sub(rAmount);
        _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount);
        _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
        _takeAllFee(tAmount, currentRate);
        _reflectFee(tAmount);
        emit Transfer(sender, recipient, tTransferAmount);
    }

    function swapAndLiquify(address from, address to) private {
        // is the token balance of this contract address over the min number of
        // tokens that we need to initiate a swap + liquidity lock?
        // also, don't get caught in a circular liquidity event.
        // also, don't swap & liquify if sender is pancake pair.
        uint256 contractTokenBalance = balanceOf(address(this));

        if (contractTokenBalance >= _maxTxAmount) {
            contractTokenBalance = _maxTxAmount;
        }

        bool shouldSell = contractTokenBalance >= minTokenNumberToSell;

        if (
            !inSwapAndLiquify &&
            shouldSell &&
            from != pancakePair &&
            swapAndLiquifyEnabled &&
            !(from == address(this) && to == address(pancakePair)) // swap 1 time
        ) {
            // only sell for minTokenNumberToSell, decouple from _maxTxAmount
            // split the contract balance into 4 pieces
            
            contractTokenBalance = minTokenNumberToSell;
            // approve contract
            _approve(address(this), address(pancakeRouter), contractTokenBalance);

            uint256 totalPercent = _liquidityFee.add(_buyBackFee).add(_marketFee);
            uint256 lpPercent = _liquidityFee.mul(1e4).div(totalPercent).div(2);
            uint256 bbPercent = _buyBackFee.mul(1e4).div(totalPercent);
            uint256 mwPercent = _marketFee.mul(1e4).div(totalPercent);
            
            uint256 otherPiece = contractTokenBalance.mul(lpPercent).div(1e4);
            uint256 tokenAmountToBeSwapped = contractTokenBalance.sub(otherPiece);
            
            // now is to lock into staking pool
            Utils.swapTokensForEth(address(pancakeRouter), tokenAmountToBeSwapped);

            // how much BNB did we just swap into?

            // capture the contract's current BNB balance.
            // this is so that we can capture exactly the amount of BNB that the
            // swap creates, and not make the liquidity event include any BNB that
            // has been manually sent to the contract
            uint256 deltaBalance = getContractBalance();
            
            totalPercent = lpPercent.add(bbPercent).add(mwPercent);

            uint256 bnbToBeAddedToLiquidity = deltaBalance.mul(lpPercent).div(totalPercent);

            // add liquidity to pancake
            Utils.addLiquidity(address(pancakeRouter), owner(), otherPiece, bnbToBeAddedToLiquidity);
            // buybcak fee transfer
            buyBackWallet.transfer(deltaBalance.mul(bbPercent).div(totalPercent));
            // market fee transfer
            marketWallet.transfer(getContractBalance());
            
            emit SwapAndLiquify(tokenAmountToBeSwapped, deltaBalance, otherPiece);
        }
    }
     
}

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) {
        // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
        // benefit is lost if 'b' is also tested.
        // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
        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) {
        // According to EIP-1052, 0x0 is the value returned for not-yet created accounts
        // and 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);
            }
        }
    }
}