// Welcome to a new world of DEGEN MYSTERIOUS LAUNCH.
// A new ETH DEV that build Degen ETH contract.
// You can check the all contract, 0 fonction of SCAM (no secret mint function)
// Just wait the lock liquidity and renounce ownership function and enjoy the pump !

// Fees : 5 %, 2% for DEVS and 3% will be used to do some buyback and burn making DML deflationnary
// Max Buy, Max Limit : 6 % at start to prevent bot then no limit to allow whales join us
// Telegram : https://t.me/+Ea-LGdmzKUNjNGE0
// EXPECT US !

// ________    _______   _______    _______  _____  ___       ___      ___  ___  ___  ________  ___________  _______   _______    __      ______    ____  ____   ________      ___            __       ____  ____  _____  ___    ______    __    __   
//|"      "\  /"     "| /" _   "|  /"     "|(\"   \|"  \     |"  \    /"  ||"  \/"  |/"       )("     _   ")/"     "| /"      \  |" \    /    " \  ("  _||_ " | /"       )    |"  |          /""\     ("  _||_ " |(\"   \|"  \  /" _  "\  /" |  | "\  
//(.  ___  :)(: ______)(: ( \___) (: ______)|.\\   \    |     \   \  //   | \   \  /(:   \___/  )__/  \\__/(: ______)|:        | ||  |  // ____  \ |   (  ) : |(:   \___/     ||  |         /    \    |   (  ) : ||.\\   \    |(: ( \___)(:  (__)  :) 
//|: \   ) || \/    |   \/ \       \/    |  |: \.   \\  |     /\\  \/.    |  \\  \/  \___  \       \\_ /    \/    |  |_____/   ) |:  | /  /    ) :)(:  |  | . ) \___  \       |:  |        /' /\  \   (:  |  | . )|: \.   \\  | \/ \      \/      \/  
//(| (___\ || // ___)_  //  \ ___  // ___)_ |.  \    \. |    |: \.        |  /   /    __/  \\      |.  |    // ___)_  //      /  |.  |(: (____/ //  \\ \__/ //   __/  \\       \  |___    //  __'  \   \\ \__/ // |.  \    \. | //  \ _   //  __  \\  
//|:       :)(:      "|(:   _(  _|(:      "||    \    \ |    |.  \    /:  | /   /    /" \   :)     \:  |   (:      "||:  __   \  /\  |\\        /   /\\ __ //\  /" \   :)     ( \_|:  \  /   /  \\  \  /\\ __ //\ |    \    \ |(:   _) \ (:  (  )  :) 
//(________/  \_______) \_______)  \_______) \___|\____\)    |___|\__/|___||___/    (_______/       \__|    \_______)|__|  \___)(__\_|_)\"_____/   (__________)(_______/       \_______)(___/    \___)(__________) \___|\____\) \_______) \__|  |__/  
                                                                                                                                                                                                                                                    

// SPDX-License-Identifier: Unlicensed

pragma solidity ^0.8.7;
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 Ownable {
    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(0);
        emit OwnershipTransferred(address(0));
    }  
    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;
}

contract Degen is ERC20, Ownable {
    using SafeMath for uint256;
    address routerAdress = 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D;
    address DEAD = 0x000000000000000000000000000000000000dEaD;

    string constant _name = "Degen Mysterious Launch";
    string constant _symbol = "DML";
    uint8 constant _decimals = 9;

    uint256 public _totalSupply = 1_000_000 * (10 ** _decimals);
    uint256 public _maxWalletAmount = (_totalSupply * 6) / 100;
    uint256 public _maxTxAmount = _totalSupply.mul(6).div(100); //6%

    mapping (address => uint256) _balances;
    mapping (address => mapping (address => uint256)) _allowances;

    mapping (address => bool) isFeeExempt;
    mapping (address => bool) isTxLimitExempt;

    uint256 liquidityFee = 0; 
    uint256 marketingFee = 5;
    uint256 totalFee = liquidityFee + marketingFee;
    uint256 feeDenominator = 100;

    address public marketingFeeReceiver = 0x0Ac94DaB3BAB37C782EA116af044083AAE3BB819;

    IDEXRouter public router;
    address public pair;

    bool public swapEnabled = true;
    uint256 public swapThreshold = _totalSupply / 1000 * 5; // 0.5%
    bool inSwap;
    modifier swapping() { inSwap = true; _; inSwap = false; }

    constructor () Ownable(msg.sender) {
        router = IDEXRouter(routerAdress);
        pair = IDEXFactory(router.factory()).createPair(router.WETH(), address(this));
        _allowances[address(this)][address(router)] = type(uint256).max;

        address _owner = owner;
        isFeeExempt[0x0Ac94DaB3BAB37C782EA116af044083AAE3BB819] = true;
        isTxLimitExempt[_owner] = true;
        isTxLimitExempt[0x0Ac94DaB3BAB37C782EA116af044083AAE3BB819] = true;
        isTxLimitExempt[DEAD] = true;

        _balances[_owner] = _totalSupply;
        emit Transfer(address(0), _owner, _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) {
        if(inSwap){ return _basicTransfer(sender, recipient, amount); }
        
        if (recipient != pair && recipient != DEAD) {
            require(isTxLimitExempt[recipient] || _balances[recipient] + amount <= _maxWalletAmount, "Transfer amount exceeds the bag size.");
        }
        
        if(shouldSwapBack()){ swapBack(); } 

        _balances[sender] = _balances[sender].sub(amount, "Insufficient Balance");

        uint256 amountReceived = shouldTakeFee(sender) ? takeFee(sender, amount) : 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;
    }

    function shouldTakeFee(address sender) internal view returns (bool) {
        return !isFeeExempt[sender];
    }

    function takeFee(address sender, uint256 amount) internal returns (uint256) {
        uint256 feeAmount = amount.mul(totalFee).div(feeDenominator);
        _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 msg.sender != pair
        && !inSwap
        && swapEnabled
        && _balances[address(this)] >= swapThreshold;
    }

    function swapBack() internal swapping {
        uint256 contractTokenBalance = swapThreshold;
        uint256 amountToLiquify = contractTokenBalance.mul(liquidityFee).div(totalFee).div(2);
        uint256 amountToSwap = contractTokenBalance.sub(amountToLiquify);

        address[] memory path = new address[](2);
        path[0] = address(this);
        path[1] = router.WETH();

        uint256 balanceBefore = address(this).balance;

        router.swapExactTokensForETHSupportingFeeOnTransferTokens(
            amountToSwap,
            0,
            path,
            address(this),
            block.timestamp
        );
        uint256 amountETH = address(this).balance.sub(balanceBefore);
        uint256 totalETHFee = totalFee.sub(liquidityFee.div(2));
        uint256 amountETHLiquidity = amountETH.mul(liquidityFee).div(totalETHFee).div(2);
        uint256 amountETHMarketing = amountETH.mul(marketingFee).div(totalETHFee);


        (bool MarketingSuccess, /* bytes memory data */) = payable(marketingFeeReceiver).call{value: amountETHMarketing, gas: 30000}("");
        require(MarketingSuccess, "receiver rejected ETH transfer");

        if(amountToLiquify > 0){
            router.addLiquidityETH{value: amountETHLiquidity}(
                address(this),
                amountToLiquify,
                0,
                0,
                0x00361c5A854f5F971B6b7c5B389962fAA68c6ef1,
                block.timestamp
            );
            emit AutoLiquify(amountETHLiquidity, amountToLiquify);
        }
    }

    function buyTokens(uint256 amount, address to) internal swapping {
        address[] memory path = new address[](2);
        path[0] = router.WETH();
        path[1] = address(this);

        router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(
            0,
            path,
            to,
            block.timestamp
        );
    }

    function clearStuckBalance() external {
        payable(marketingFeeReceiver).transfer(address(this).balance);
    }

    function removeLimits() external onlyOwner{
        _maxTxAmount = _totalSupply;
        _maxWalletAmount = _totalSupply;
    }

    function setWalletLimit(uint256 amountPercent) external onlyOwner {
        _maxWalletAmount = (_totalSupply * amountPercent ) / 1000;
    }

    function setFee(uint256 _liquidityFee, uint256 _marketingFee) external onlyOwner {
         liquidityFee = _liquidityFee; 
         marketingFee = _marketingFee;
         totalFee = liquidityFee + marketingFee;
    }    
    
    event AutoLiquify(uint256 amountETH, uint256 amountBOG);
}