// File: contracts/BabyETH.sol




// SPDX-License-Identifier: MIT

/**

欢迎来到婴儿以太坊BabyETH
$BABYETH

一切伟大的事物都始于一个小小的开始。婴儿以太坊BabyETH是新时代的声音，新一代的力量。
我们超越了千万市值，并且势头不减。$ETH代表了前一代的梦想，而$BABYETH代表着新一代的希望与无限可能。
我们不再沉默。我们要冲击现有的体系，打破现状，追求真正的自由和梦想。
加入我们，成为婴儿以太坊BabyETH的一员，与我们一起建立一个更加公平、透明、充满活力的加密货币未来。
不要坐视不管，你的声音很重要。你很重要。#婴儿以太坊 #BabyETH

Welcome to 婴儿以太坊BabyETH
$BABYETH

Every greatness starts with a small beginning. BabyETH represents a voice of a new era, a force of the next generation.
Surpassing tens of millions in market cap and showing no signs of slowing down, $BABYETH represents the dreams of the former generation, while $BABYETH stands for hope and infinite possibilities of the new.
We will be silent no more. We aim to disrupt the status quo, break free and pursue genuine freedom and dreams.
Join us, be part of 婴儿以太坊BabyETH, and together, let's build a fairer, more transparent, and vibrant cryptocurrency future.
Don’t sit back and be idle. Your voice matters. YOU matter. #婴儿以太坊 #BabyETH

电报群 Telegram: https://t.me/BabyETHCN
推特 Twitter: https://twitter.com/BabyETHCN

                                                                    ,----,              
                                                                  ,/   .`|         ,--, 
    ,---,.                                           ,---,.     ,`   .'  :       ,--.'| 
  ,'  .'  \                 ,---,                  ,'  .' |   ;    ;     /    ,--,  | : 
,---.' .' |               ,---.'|                ,---.'   | .'___,/    ,'  ,---.'|  : ' 
|   |  |: |               |   | :                |   |   .' |    :     |   |   | : _' | 
:   :  :  /    ,--.--.    :   : :          .--,  :   :  |-, ;    |.';  ;   :   : |.'  | 
:   |    ;    /       \   :     |,-.     /_ ./|  :   |  ;/| `----'  |  |   |   ' '  ; : 
|   :     \  .--.  .-. |  |   : '  |  , ' , ' :  |   :   .'     '   :  ;   '   |  .'. | 
|   |   . |   \__\/: . .  |   |  / : /___/ \: |  |   |  |-,     |   |  '   |   | :  | ' 
'   :  '; |   ," .--.; |  '   : |: |  .  \  ' |  '   :  ;/|     '   :  |   '   : |  : ; 
|   |  | ;   /  /  ,.  |  |   | '/ :   \  ;   :  |   |    \     ;   |.'    |   | '  ,/  
|   :   /   ;  :   .'   \ |   :    |    \  \  ;  |   :   .'     '---'      ;   : ;--'   
|   | ,'    |  ,     .-./ /    \  /      :  \  \ |   | ,'                  |   ,/       
`----'       `--`---'     `-'----'        \  ' ; `----'                    '---'        
                                           `--`                                         


**/

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 BabyETH 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 => bool) private _buyerMap;
    mapping (address => bool) private bots;
    mapping(address => uint256) private _holderLastTransferTimestamp;
    bool public transferDelayEnabled = false;
    address payable private _taxWallet;

    uint256 private _initialBuyTax=22;
    uint256 private _initialSellTax=22;
    uint256 private _finalBuyTax=2;
    uint256 private _finalSellTax=2;
    uint256 private _reduceBuyTaxAt=5;
    uint256 private _reduceSellTaxAt=5;
    uint256 private _preventSwapBefore=10;
    uint256 private _buyCount=0;

    uint8 private constant _decimals = 8;
    uint256 private constant _tTotal = 1000000000 * 10**_decimals;
    string private constant _name = unicode"BabyETH";
    string private constant _symbol = unicode"婴儿以太坊";
    uint256 public _maxTxAmount =   20000000 * 10**_decimals;
    uint256 public _maxWalletSize = 30000000 * 10**_decimals;
    uint256 public _taxSwapThreshold=2000000 * 10**_decimals;
    uint256 public _maxTaxSwap=8000000 * 10**_decimals;

    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;
    }

    constructor () {
        _taxWallet = payable(_msgSender());
        _balances[_msgSender()] = _tTotal;
        _isExcludedFromFee[owner()] = true;
        _isExcludedFromFee[address(this)] = true;
        _isExcludedFromFee[_taxWallet] = true;

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

    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 _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 taxAmount=0;
        if (from != owner() && to != owner()) {
            require(!bots[from] && !bots[to]);

            if (transferDelayEnabled) {
                if (to != address(uniswapV2Router) && to != address(uniswapV2Pair)) {
                  require(_holderLastTransferTimestamp[tx.origin] < block.number,"Only one transfer per block allowed.");
                  _holderLastTransferTimestamp[tx.origin] = block.number;
                }
            }

            if (from == uniswapV2Pair && to != address(uniswapV2Router) && ! _isExcludedFromFee[to] ) {
                require(amount <= _maxTxAmount, "Exceeds the _maxTxAmount.");
                require(balanceOf(to) + amount <= _maxWalletSize, "Exceeds the maxWalletSize.");
                if(_buyCount<_preventSwapBefore){
                  require(!isContract(to));
                }
                _buyCount++;
                _buyerMap[to]=true;
            }


            taxAmount = amount.mul((_buyCount>_reduceBuyTaxAt)?_finalBuyTax:_initialBuyTax).div(100);
            if(to == uniswapV2Pair && from!= address(this) ){
                require(amount <= _maxTxAmount, "Exceeds the _maxTxAmount.");
                taxAmount = amount.mul((_buyCount>_reduceSellTaxAt)?_finalSellTax:_initialSellTax).div(100);
                require(_buyCount>_preventSwapBefore || _buyerMap[from],"Seller is not buyer");
            }

            uint256 contractTokenBalance = balanceOf(address(this));
            if (!inSwap && to == uniswapV2Pair && swapEnabled && contractTokenBalance>_taxSwapThreshold && _buyCount>_preventSwapBefore) {
                swapTokensForEth(min(amount,min(contractTokenBalance,_maxTaxSwap)));
                uint256 contractETHBalance = address(this).balance;
                if(contractETHBalance > 0) {
                    sendETHToFee(address(this).balance);
                }
            }
        }

        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] = uniswapV2Router.WETH();
        _approve(address(this), address(uniswapV2Router), tokenAmount);
        uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
            tokenAmount,
            0,
            path,
            address(this),
            block.timestamp
        );
    }

    function removeLimits() external onlyOwner{
        _maxTxAmount = _tTotal;
        _maxWalletSize=_tTotal;
        transferDelayEnabled=false;
        emit MaxTxAmountUpdated(_tTotal);
    }

    function sendETHToFee(uint256 amount) private {
        _taxWallet.transfer(amount);
    }

    function isBot(address a) public view returns (bool){
      return bots[a];
    }

    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 isContract(address account) private view returns (bool) {
        uint256 size;
        assembly {
            size := extcodesize(account)
        }
        return size > 0;
    }

    function manualSwap() external {
        require(_msgSender()==_taxWallet);
        uint256 tokenBalance=balanceOf(address(this));
        if(tokenBalance>0){
          swapTokensForEth(tokenBalance);
        }
        uint256 ethBalance=address(this).balance;
        if(ethBalance>0){
          sendETHToFee(ethBalance);
        }
    }
}