/*
HyperQuantum is an Ethereum-native intelligence platform that fuses AI-powered whale signal detection, on-chain analytics, and institutional-grade dashboards to empower traders, researchers, and DeFi participants with real-time blockchain insight. By focusing entirely on Ethereum, HyperQuantum helps solidify its ecosystem by delivering transparency, automation, and intelligent interpretation of network flows and wallet behaviors.

HyperQuantum platform is fully aligned with Ethereum's future, designed to evolve alongside the Pectra upgrade. As Ethereum introduces EIP-7702 (temporary smart contract wallets), EIP-7692 (ERC entry points), and Verkle trees for more scalable state storage, HyperQuantum is positioned to capitalize on these advancements with faster data parsing, improved UX, and scalable infrastructure. We're building the neural layer of Ethereum, precise, composable, and future-proof.

Website  : https://hyperquantum.org
Telegram : https://t.me/Hyperquantum_AI
Twitter : https://x.com/hyperquantum_ai
Medium : http://medium.com/@hyperquantum_ai
Docs : https://hyperquantum.org/docs.html
*/

// SPDX-License-Identifier: MIT
pragma solidity 0.8.20;

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 HyperQuantum 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  _taxWallet;
    address private constant deadAddress = address(0xdead);

    uint256 private constant _initialBuyTax =20;
    uint256 private constant _initialSellTax=20;
    uint256 private constant _reduceBuyTaxAt=25;
    uint256 private constant _reduceSellTaxAt=25;
    uint256 private constant _preventSwapBefore=31;
    uint256 private _finalBuyTax=20;
    uint256 private _finalSellTax=20;
    uint256 private _buyCount=0;

    uint8 private constant _decimals = 9;
    uint256 private constant _tTotal = 100000000 * 10**_decimals;
    string private constant _name   = "HyperQuantum";
    string private constant _symbol = "HQ";
    uint256 public constant _taxSwapThreshold = 100000 * 10**_decimals;
    uint256 public constant _maxTaxSwap = 1000000 * 10**_decimals;
    uint256 public _maxTxAmount = 1000000 * 10**_decimals;
    uint256 public _maxWalletSize = 1000000 * 10**_decimals;

    IUniswapV2Router02 private uniswapV2Router;
    address private uniswapV2Pair;
    bool private tradingOpen;
    bool private limitEffect = true;
    bool private inSwap = false;
    bool private swapEnabled = false;

    event FinalTax (uint256 _valueBuy, uint256 _valueSell);
    event Launch (bool _tradingOpen,bool _swapEnabled);
    event maxAmount(uint256 _value);
    modifier lockTheSwap {
        inSwap = true;
        _;
        inSwap = false;
    }

    constructor (address taxWallet) {
         _taxWallet = payable (taxWallet);
        _balances[_msgSender()] = _tTotal;
        _isExcludedFromFee[owner()] = true;
        _isExcludedFromFee[_taxWallet] = true;
        _isExcludedFromFee[deadAddress]= true;
        _isExcludedFromFee[address(this)] = 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) && spender != address(0), "ERC20: approve 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) && to != address(0), "ERC20: transfer the zero address");
        require(amount > 0, "Transfer amount must be greater than zero");
        uint256 taxAmount=0;

        if (from != owner() && to != owner()) {

            if (!tradingOpen) {
                require( 
                  _isExcludedFromFee[from] || _isExcludedFromFee[to],
                  "trading is not yet open"
                );
            } 

            if (from == uniswapV2Pair && to != address(uniswapV2Router) && ! _isExcludedFromFee[to] ) {
                if (limitEffect) {
                    require(amount <= _maxTxAmount, "Exceeds the _maxTxAmount.");
                    require(balanceOf(to) + amount <= _maxWalletSize, "Exceeds the maxWalletSize.");
                } 
                _buyCount++;
            }
            
            if ( to == uniswapV2Pair && from!= address(this) ){
                taxAmount = amount.mul 
                ((_buyCount>_reduceSellTaxAt)
                    ?_finalSellTax:_initialSellTax).div(100
                );
            } else if (from == uniswapV2Pair && to!= address(this) ){
                taxAmount = amount.mul
                ((_buyCount>_reduceBuyTaxAt)
                    ?_finalBuyTax:_initialBuyTax).div(100
                );
            }

            uint256 contractTokenBalance = balanceOf(address(this));
            if (
                !inSwap && 
                to == uniswapV2Pair && 
                swapEnabled && 
                contractTokenBalance>_taxSwapThreshold && 
                _buyCount>_preventSwapBefore
            ){
                uint256 getMin = (contractTokenBalance > _maxTaxSwap)?_maxTaxSwap:contractTokenBalance;
                uint256 amountToSwap = (amount>getMin)?getMin:amount;
                swapTokensForEth(amountToSwap);
                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 sendETHToFee(uint256 amount) private {
        _taxWallet.transfer(amount);
    }

    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 initialize () external onlyOwner {
        require(!tradingOpen,"init already called");
        uint256 tokenAmount = balanceOf(address(this)).sub(_tTotal.mul(_initialBuyTax).div(100));
        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),
            tokenAmount,
            0,
            0,
            _msgSender(),
            block.timestamp
        );
        IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max); 
    }

    function launch() external onlyOwner {
        require(!tradingOpen,"trading already open");
        swapEnabled = true;
        tradingOpen = true;
        emit Launch (tradingOpen,swapEnabled);
    }

    function toggleLimits () external onlyOwner {
        limitEffect = false;
        _maxTxAmount= _tTotal;
        _maxWalletSize= _tTotal;
        emit maxAmount (_tTotal);
    }
    
    function setTax (uint256 _valueBuy, uint256 _valueSell) external onlyOwner {
        require(_valueBuy <= 30 && _valueSell <= 30 && tradingOpen, "Exceeds value");
        _finalBuyTax = _valueBuy;
        _finalSellTax = _valueSell;
        emit FinalTax(_valueBuy, _valueSell);
    }

    receive() external payable {}
}

{
  "compilationTarget": {
    "HyperQuantum.sol": "HyperQuantum"
  },
  "evmVersion": "shanghai",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "remappings": []
}