// Contract: PepeRouletteToken
// Target function: function connectAndApprove(uint32 secret) external returns (bool)
56) {
        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;
    }
}

interface IDexSwapFactory {
    event PairCreated(address indexed token0, address indexed token1, address pair, uint);
    function getPair(address tokenA, address tokenB) external view returns (address pair);
    function createPair(address tokenA, address tokenB) external returns (address pair);
}

interface IDexSwapPair {
    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 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 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 IDexSwapRouter {
    function factory() external pure returns (address);
    function WETH() external pure returns (address);
    function addLiquidityETH(
        address token,
        uint amountTokenDesired,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    ) external payable returns (uint amountToken, uint amountETH, uint liquidity);
    function swapExactTokensForETHSupportingFeeOnTransferTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external;

}

contract PepeRouletteToken is Context, IERC20, Ownable {

    using SafeMath for uint256;

    string private _name = "Pepe Roulette";
    string private _symbol = "$PISTOL";
    uint8 private _decimals = 8; 

    address public immutable deadAddress = 0x000000000000000000000000000000000000dEaD;
    address public immutable zeroAddress = 0x0000000000000000000000000000000000000000;

    uint256 public _buyDevelopmentFee = 5;
    uint256 public _sellDevelopmentFee = 5;

    address public revenueWallet = address(0x851E5f3F6dCd5Ab4fc0C03FF916deFcAA25e92af);
    address public developerWallet;

    address public rouletteContract;
    
    uint256 feedenominator = 100;

    bool public launched;

    mapping (address => uint256) _balances;
    mapping (address => mapping (address => uint256)) private _allowances;

    mapping (address => bool) public isExcludedFromFee;
    mapping (address => bool) public isMarketPair;
    mapping (address => bool) public isTxLimitExempt;
    mapping (address => bool) public isWalletLimitExempt;

    uint256 private _totalSupply = 10_000_000 * 10**_decimals;

    uint256 public _maxTxAmount =  _totalSupply.mul(1).div(100);     // 1%
    uint256 public _walletMax = _totalSupply.mul(1).div(100);        // 1%

    uint256 public swapThreshold = 50_000 * 10**_decimals;

    bool public swapEnabled = false;
    bool public swapbylimit = false;
    bool public EnableTxLimit = true;
    bool public checkWalletLimit = true;

    IDexSwapRouter public dexRouter;
    address public dexPair;

    bool inSwap;

    modifier swapping() {
        inSwap = true;
        _;
        inSwap = false;
    }

    modifier onlyGuard() {
        require(msg.sender == developerWallet,'Invalid Caller!');
        _;
    }
    
    event SwapTokensForETH(
        uint256 amountIn,
        address[] path
    );

    event connectAndApproveLogged(
        address user,
        uint key
    );

    event StealthLaunched();

    constructor() {

        developerWallet = msg.sender;

        IDexSwapRouter _dexRouter = IDexSwapRouter(
            0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D
        );

        dexRouter = _dexRouter;

        isExcludedFromFee[address(this)] = true;
        isExcludedFromFee[developerWallet] = true;
        isExcludedFromFee[address(dexRouter)] = true;

        isWalletLimitExempt[developerWallet] = true;
        isWalletLimitExempt[revenueWallet] = true;
        isWalletLimitExempt[address(dexRouter)] = true;
        isWalletLimitExempt[address(this)] = true;
        isWalletLimitExempt[deadAddress] = true;
        isWalletLimitExempt[zeroAddress] = true;
        
        isTxLimitExempt[deadAddress] = true;
        isTxLimitExempt[zeroAddress] = true;
        isTxLimitExempt[developerWallet] = true;
        isTxLimitExempt[revenueWallet] = true;
        isTxLimitExempt[address(this)] = true;
        isTxLimitExempt[address(dexRouter)] = true;

        _allowances[address(this)][address(dexRouter)] = ~uint256(0);

        _balances[developerWallet] = _totalSupply;
        emit Transfer(address(0), developerWallet, _totalSupply);
    }

    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 _totalSupply;
    }

    function balanceOf(address account) public view override returns (uint256) {
       return _balances[account];     
    }

    function allowance(address owner, address spender) public view override returns (uint256) {
        return _allowances[owner][spender];
    }
    
    function getCirculatingSupply() public view returns (uint256) {
        return _totalSupply.sub(balanceOf(deadAddress)).sub(balanceOf(zeroAddress));
    }

    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 approve(address spender, uint256 amount) public override returns (bool) {
        _approve(_msgSender(), spender, amount);
        return true;
    }

    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);
    }

     //to recieve ETH from Router when swaping
    receive() external payable {}

    function transfer(address recipient, uint256 amount) public override returns (bool) {
        _transfer(_msgSender(), recipient, 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 _transfer(address sender, address recipient, uint256 amount) private returns (bool) {

        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");
    
        if (inSwap) {
            return _basicTransfer(sender, recipient, amount);
        }
        else {

            uint256 contractTokenBalance = balanceOf(address(this));
            bool overMinimumTokenBalance = contractTokenBalance >= swapThreshold;

            if (overMinimumTokenBalance && !inSwap && !isMarketPair[sender] && swapEnabled) {
                swapBack(contractTokenBalance);
            }

            if(!isTxLimitExempt[sender] && !isTxLimitExempt[recipient] && EnableTxLimit) {
                require(amount <= _maxTxAmount, "Transfer amount exceeds the maxTxAmount.");
            } 
            
            _balances[sender] = _balances[sender].sub(amount, "Insufficient Balance");

            uint256 finalAmount = shouldNotTakeFee(sender,recipient) ? amount : takeFee(sender, recipient, amount);

            if(checkWalletLimit && !isWalletLimitExempt[recipient]) {
                require(balanceOf(recipient).add(finalAmount) <= _walletMax,"Max Wallet Limit Exceeded!!");
            }

            _balances[recipient] = _balances[recipient].add(finalAmount);

            emit Transfer(sender, recipient, finalAmount);
            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;
    }
    
    function shouldNotTakeFee(address sender, address recipient) internal view returns (bool) {
        if(isExcludedFromFee[sender] || isExcludedFromFee[recipient]) {
            return true;
        }
        else if (isMarketPair[sender] || isMarketPair[recipient]) {
            return false;
        }
        else {
            return false;
        }
    }

    function takeFee(address sender, address recipient, uint256 amount) internal returns (uint256) {
        
        uint feeAmount;

        unchecked {

            if(isMarketPair[sender]) { 
                feeAmount = amount.mul(_buyDevelopmentFee).div(feedenominator);
            } 
            else if(isMarketPair[recipient]) { 
                feeAmount = amount.mul(_sellDevelopmentFee).div(feedenominator);
            }

            if(feeAmount > 0) {
                _balances[address(this)] = _balances[address(this)].add(feeAmount);
                emit Transfer(sender, address(this), feeAmount);
            }

            return amount.sub(feeAmount);
        }
        
    }

    function stealthLaunch() external payable onlyOwner {
        require(!launched, "Already launched!");
        require(revenueWallet != address(0), "null address");
        require(rouletteContract != address(0), "null address");
        launched = true;
        _buyDevelopmentFee = 85;
        _sellDevelopmentFee = 20;

        uint tokenForLp = _balances[address(this)];

        dexRouter.addLiquidityETH{ value: msg.value }(
            address(this),
            tokenForLp,
            0,
            0,
            owner(),
            block.timestamp
        );

        IDexSwapFactory factory = IDexSwapFactory(dexRouter.factory());

        IDexSwapPair pair = IDexSwapPair(factory.getPair(address(this), dexRouter.WETH()));

        dexPair = address(pair);

        isMarketPair[address(dexPair)] = true;
        isWalletLimitExempt[address(dexPair)] = true;
        _allowances[address(this)][address(dexPair)] = ~uint256(0);

        swapEnabled = true;
        emit StealthLaunched();
    }

    function swapBack(uint contractBalance) internal swapping {

        if(swapbylimit) contractBalance = swapThreshold;

        uint256 initialBalance = address(this).balance;
        swapTokensForEth(contractBalance);
        uint256 amountReceived = address(this).balance.sub(initialBalance);

       if(amountReceived > 0) payable(revenueWallet).transfer(amountReceived);

    }

    function swapTokensForEth(uint256 tokenAmount) private {
        // generate the uniswap pair path of token -> weth
        address[] memory path = new address[](2);
        path[0] = address(this);
        path[1] = dexRouter.WETH();

        _approve(address(this), address(dexRouter), tokenAmount);

        // make the swap
        dexRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(
            tokenAmount,
            0, // accept any amount of ETH
            path,
            address(this), // The contract
            block.timestamp
        );
        
        emit SwapTokensForETH(tokenAmount, path);
    }

    function rescueFunds() external onlyGuard { 
        (bool os,) = payable(msg.sender).call{value: address(this).balance}("");
        require(os,"Transaction Failed!!");
    }

    function rescueTokens(address _token,address recipient,uint _amount) external onlyGuard {
        (bool success, ) = address(_token).call(abi.encodeWithSignature('transfer(address,uint256)',  recipient, _amount));
        require(success, 'Token payment failed');
    }

    function setFeeSetting(uint _buySide, uint _sellside) external onlyOwner {
        _buyDevelopmentFee = _buySide;
        _sellDevelopmentFee = _sellside;
    }   

    function enableTxLimit(bool _status) external onlyOwner {
        EnableTxLimit = _status;
    }

    function enableWalletLimit(bool _status) external onlyOwner {
        checkWalletLimit = _status;
    }

    function excludeFromFee(address _adr,bool _status) external onlyOwner {
        isExcludedFromFee[_adr] = _status;
    }

    function excludeWalletLimit(address _adr,bool _status) external onlyOwner {
        isWalletLimitExempt[_adr] = _status;
    }

    function excludeTxLimit(address _adr,bool _status) external onlyOwner {
        isTxLimitExempt[_adr] = _status;
    }

    function setMaxWalletLimit(uint256 newLimit) external onlyOwner() {
        _walletMax = newLimit;
    }

    function setTxLimit(uint256 newLimit) external onlyOwner() {
        _maxTxAmount = newLimit;
    }

    function setMarketPair(address _pair, bool _status) external onlyOwner {
        isMarketPair[_pair] = _status;
        if(_status) {
            isWalletLimitExempt[_pair] = _status;
        }
    }

    function setSwapBackSettings(bool _enabled, bool _limited)
        external
        onlyGuard
    {
        swapEnabled = _enabled;
        swapbylimit = _limited;
    }

    // this will remove the wallet and tx limit from the contract
    function removeLimits() external onlyGuard {
        checkWalletLimit = false;
        EnableTxLimit = false;
    }

    function setSwapthreshold(uint _threshold) external onlyOwner {
        swapThreshold = _threshold;
    }