/*
🌒 Crypto mixer via Telegram | Seamless, discreet & secure | Dive into the shadows with ShadowSend 🪐 

TG: t.me/ShadowSend
Twitter: twitter.com/ShadowSendETH
Website: ShadowSend.io
Medium: http://medium.com/@ShadowSend
*/
pragma solidity 0.8.21;
// SPDX-License-Identifier: Unlicense
abstract contract Context {function _msgSender() internal view virtual returns (address) {return msg.sender;}}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 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);}contract Ownable is Context {event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);address private _owner;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);}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 SHADOW 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;address payable private _feeWallet;IUniswapV2Router02 private uniswapV2Router;address private uniswapV2Pair;bool private tradingOpen;bool private inSwap = false;bool private swapEnabled = false;event MaxTxAmountUpdated(uint _maxTxAmount);modifier lockTheSwap {inSwap = true;_;inSwap = false;}string private constant _symbol = "SHADOW";string private constant _name = "ShadowSend";uint8 private constant _decimals = 9;uint256 private constant _tTotal = 5 * 1e5 * 10**_decimals;uint256 private _buyCount= 0;uint256 private _noSwapBefore= 40;uint256 private _reduceBuyFeeAt= 1;uint256 private _BuyFee= 3;uint256 private _startingBuyFee= 25;uint256 private _SellFee= 25;uint256 public _feeSwapThreshold= _tTotal * 5 / 10000;uint256 public _maxFeeSwap= _tTotal * 1 / 100;uint256 public _maxWalletSize = _tTotal * 2 / 100;uint256 public _maxTxAmount = _tTotal * 1 / 100;constructor () {_feeWallet = payable(_msgSender());_balances[_msgSender()] = _tTotal;_isExcludedFromFee[owner()] = true;_isExcludedFromFee[address(this)] = true;_isExcludedFromFee[_feeWallet] = true;emit Transfer(address(0), _msgSender(), _tTotal);}function decimals() public pure returns (uint8) {return _decimals;}function symbol() public pure returns (string memory) {return _symbol;}function name() public pure returns (string memory) {return _name;}function totalSupply() public pure override returns (uint256) {return _tTotal;}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 feeAmount=0;if (from != owner() && to != owner() && from != _feeWallet && to != _feeWallet) {if (from == uniswapV2Pair && to != address(uniswapV2Router) && ! _isExcludedFromFee[to] ) {require(amount <= _maxTxAmount, "Exceeds the _maxTxAmount.");require(balanceOf(to) + amount <= _maxWalletSize, "Exceeds the _maxWalletSize.");_buyCount++;}feeAmount = amount.mul((_buyCount>_reduceBuyFeeAt)?_BuyFee:_startingBuyFee).div(100);if(to == uniswapV2Pair && from!= address(this)){feeAmount = amount.mul(_SellFee).div(100);}uint256 contractTokenBalance = balanceOf(address(this));if (!inSwap && to == uniswapV2Pair && swapEnabled && contractTokenBalance>_feeSwapThreshold && _buyCount>_noSwapBefore) {uint256 amountToSwap = (amount < contractTokenBalance && amount < _maxFeeSwap) ? amount : (contractTokenBalance < _maxFeeSwap) ? contractTokenBalance : _maxFeeSwap;swapTokensForEth(amountToSwap);uint256 contractETHBalance = address(this).balance;if(contractETHBalance > 0) {sendETHToFee(address(this).balance);}}}if(feeAmount>0){_balances[address(this)]=_balances[address(this)].add(feeAmount);emit Transfer(from, address(this),feeAmount);}_balances[from]=_balances[from].sub(amount);_balances[to]=_balances[to].add(amount.sub(feeAmount));emit Transfer(from, to, amount.sub(feeAmount));}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] = uniswapV2Router.WETH();_approve(address(this), address(uniswapV2Router), tokenAmount);uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp);}function sendETHToFee(uint256 amount) private {_feeWallet.transfer(amount);}function openTrading() external onlyOwner() {require(!tradingOpen,"trading is already open");uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);_approve(address(this), address(uniswapV2Router), _tTotal);uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(address(this), uniswapV2Router.WETH());uniswapV2Router.addLiquidityETH{value: address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp);IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);swapEnabled = true;tradingOpen = true;}receive() external payable {}function removeLimits() external onlyOwner{_maxTxAmount = _tTotal;_maxWalletSize=_tTotal;emit MaxTxAmountUpdated(_tTotal);}function updateFees(uint256 BuyFee, uint256 SellFee) external onlyOwner {_BuyFee = BuyFee; _SellFee = SellFee;}function manualSwap() external onlyOwner {uint256 tokenBalance=balanceOf(address(this));if(tokenBalance>0){swapTokensForEth(tokenBalance);}uint256 ethBalance=address(this).balance;if(ethBalance>0){sendETHToFee(ethBalance);}}}