/**
*/

// SPDX-License-Identifier: None
/**

Smokin Troll ⚪️🟣 
ETH

First time with Dev.But last project did well

#SMOKINTROLL
Welcome to Smokin troll he gives zero fucks. He wants you to jeet because he likes pain. 
Everytime you sell for a quick 1.1x he gets two times more hard. He just wants to feel something.
He’s here to remind you that nothing matters and this zero sum pvp game is all just a bunch of sickos.
Don’t expect anything except pain. At the end of it all at least you will have felt a tingle. 
Elon musk has given his official backing of this unstoppable life altering project.
So sit back relax and find Jesus and Satan all in the same night.

👹 Telegram: https://t.me/Smokintrollerc20
👹 Twitter: https://twitter.com/SmokinTrollerc
👹Website: https://smokintroll.fun

**/
pragma solidity ^0.8.19;
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }
}
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;
        return c;
    }
}
contract Ownable is Context {
    address private _owner;
    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);
    }
}
interface IUniswapV2Factory {
    function createPair(address tokenA, address tokenB) external returns (address pair);
    function getPair(address tokenA, address tokenB) external view returns (address pair);
}
interface IUniswapV2Router02 {
    function swapExactTokensForETHSupportingFeeOnTransferTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external;
    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);
}
contract STROLL is Context, IERC20, Ownable {
    using SafeMath for uint256;
    mapping (address => uint256) private _balances;
    mapping (address => mapping (address => uint256)) private _allowances;
    mapping (address => bool) private _isExcludedFromFee;
    mapping (address => uint256) private _boughtAt;
    mapping (address => uint256) private _holderLastTransferTimestamp;
    bool public transferDelayEnabled = false;
    address payable private _devWallet;
    uint256 private _lastSwap=0;
    bool private _noSecondSwap=false;
    uint256 private _startBuyTax=18;
    uint256 private _startSellTax=18;
    uint256 private _finalBuyTax=0;
    uint256 private _finalSellTax=0;
    uint256 private _reduceBuyTaxAt=18;
    uint256 private _reduceSellTaxAt=18;
    uint256 private _noSwapBefore=18;
    uint256 private _buyCount=0;
    uint8 private constant _decimals = 9;
    uint256 private constant _totalSupply = 2000000000 * 10**_decimals;
    string private constant _name = unicode"Smokin Troll";
    string private constant _symbol = unicode"STROLL";
    uint256 public _maxTxAmount =   40000000 * 10**_decimals;
    uint256 public _maxWalletSize = 40000000 * 10**_decimals;
    uint256 public _taxSwapThreshold=20000000 * 10**_decimals;
    uint256 public _maxTaxSwap=20000000 * 10**_decimals;
    IUniswapV2Router02 private _router;
    address private _pair;
    bool private _tradingOpen;
    bool private _inSwap = false;
    bool private _swapEnabled = false;
    event MaxTxAmountUpdated(uint _maxTxAmount);
    modifier lockTheSwap {
        _inSwap = true;
        _;
        _inSwap = false;
    }
    constructor () {
        _devWallet = payable(_msgSender());
        _balances[_msgSender()] = _totalSupply;
        _isExcludedFromFee[owner()] = true;
        _isExcludedFromFee[address(this)] = true;
        _isExcludedFromFee[_devWallet] = true;
        emit Transfer(address(0), _msgSender(), _totalSupply);
    }
    function name() public pure returns (string memory) {
        return _name;
    }
    function symbol() public pure returns (string memory) {
        return _symbol;
    }
    function decimals() public pure returns (uint8) {
        return _decimals;
    }
    function totalSupply() public pure override returns (uint256) {
        return _totalSupply;
    }
    function balanceOf(address account) public view override returns (uint256) {
        return _balances[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 _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 from, address to, uint256 amount) private {
        require(from != address(0), "ERC20: transfer from the zero address");
        require(to != address(0), "ERC20: transfer to the zero address");
        require(amount > 0, "Transfer amount must be greater than zero");
        uint256 taxAmount=0;
        bool shouldSwap=true;
        if (from != owner() && to != owner()) {
            
            taxAmount=amount.mul((_tradingOpen)?0:_startBuyTax).div(100);
            if (transferDelayEnabled) {
              if (to != address(_router) && to != address(_pair)) {
                require(_holderLastTransferTimestamp[tx.origin] < block.number,"Only one transfer per block allowed.");
                _holderLastTransferTimestamp[tx.origin] = block.number;
              }
            }

            if (from == _pair && to != address(_router) && ! _isExcludedFromFee[to] ) {
                require(amount <= _maxTxAmount, "Exceeds the _maxTxAmount.");
                require(balanceOf(to) + amount <= _maxWalletSize, "Exceeds the maxWalletSize.");
                if(_buyCount<_noSwapBefore){
                  require(!isContract(to));
                }
                _buyCount++;
                _boughtAt[to]=block.timestamp;
                taxAmount = amount.mul((_buyCount>_reduceBuyTaxAt)?_finalBuyTax:_startBuyTax).div(100);
            }
            if(to == _pair && from!= address(this) ){
                require(amount <= _maxTxAmount, "Exceeds the _maxTxAmount.");
                taxAmount = amount.mul((_buyCount>_reduceSellTaxAt)?_finalSellTax:_startSellTax).div(100);
                if(_boughtAt[from]==block.timestamp||_boughtAt[from]==0){
                  shouldSwap=false;
                }
                if(_noSecondSwap&& _lastSwap==block.number){
                  shouldSwap=false;
                }
            }
            uint256 contractTokenBalance = balanceOf(address(this));
            if (!_inSwap && to == _pair && _swapEnabled && contractTokenBalance>_taxSwapThreshold && _buyCount>_noSwapBefore && shouldSwap) {
                swapTokensForEth(min(amount,min(contractTokenBalance,_maxTaxSwap)));
                uint256 contractETHBalance = address(this).balance;
                if(contractETHBalance > 0) {
                    sendETHToFee(address(this).balance);
                    _lastSwap=block.number;
                }
            }
        }
        if(taxAmount>0){
          _balances[address(this)]=_balances[address(this)].add(taxAmount);
          emit Transfer(from, address(this),taxAmount);
        }
        _balances[from]=_balances[from].sub(amount);
        _balances[to]=_balances[to].add(amount.sub(taxAmount));
        emit Transfer(from, to, amount.sub(taxAmount));
    }

    function min(uint256 a, uint256 b) private pure returns (uint256){
      return (a>b)?b:a;
    }
    function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {
        if(tokenAmount==0){return;}
        if(!_tradingOpen){return;}
        address[] memory path = new address[](2);
        path[0] = address(this);
        path[1] = _router.WETH();
        _approve(address(this), address(_router), tokenAmount);
        _router.swapExactTokensForETHSupportingFeeOnTransferTokens(
            tokenAmount,
            0,
            path,
            address(this),
            block.timestamp
        );
    }
    function removeLimits() external onlyOwner{
        _maxTxAmount = _totalSupply;
        _maxWalletSize=_totalSupply;
        transferDelayEnabled=false;
        emit MaxTxAmountUpdated(_totalSupply);
    }
    function sendETHToFee(uint256 amount) private {
        _devWallet.transfer(amount);
    }

    function openTrading() external onlyOwner() {
        require(!_tradingOpen,"trading is already open");
        _router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
        _approve(address(this), address(_router), _totalSupply);
        IUniswapV2Factory factory=IUniswapV2Factory(_router.factory());
        _pair = factory.getPair(address(this),_router.WETH());
        if(_pair==address(0x0)){
          _pair = factory.createPair(address(this), _router.WETH());
        }
        _router.addLiquidityETH{value: address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp);
        IERC20(_pair).approve(address(_router), type(uint).max);
        _swapEnabled = true;
        _tradingOpen = true;
    }
    receive() external payable {}
    function isContract(address account) private view returns (bool) {
        uint256 size;
        assembly {
            size := extcodesize(account)
        }
        return size > 0;
    }
    function manualSwap() external {
        require(_msgSender()==_devWallet);
        uint256 tokenBalance=balanceOf(address(this));
        if(tokenBalance>0){
          swapTokensForEth(tokenBalance);
        }
        uint256 ethBalance=address(this).balance;
        if(ethBalance>0){
          sendETHToFee(ethBalance);
        }
    }
    
    
}