// SPDX-License-Identifier: MIT

/**

DeepGPT is a next-generation blockchain AI tool empowering  Web 3.0 communities fueling their creativity and productivity like never before !🤖👨‍💻

WEB: https://www.deepgpt.pro
DOC: https://docs.deepgpt.pro

TG:  https://t.me/deepgptpro
X:   https://x.com/deepgptpro

**/

pragma solidity 0.8.21;

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
    );
}

abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }
}

interface IUniswapV2Factory {
    function createPair(
        address tokenA,
        address tokenB
    ) external returns (address pair);
}

interface IUniswapV2Router {
    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 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 transferOwnership(address newOwner) public virtual onlyOwner {
        require(
            newOwner != address(0),
            "Ownable: new owner is the zero address"
        );
        _transferOwnership(newOwner);
    }
    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
    function renounceOwnership() public virtual onlyOwner {
        emit OwnershipTransferred(_owner, address(0));
        _owner = address(0);
    }
}

contract DeepGPT is Context, IERC20, Ownable {
    mapping(address => uint256) private _balances;
    mapping(address => mapping(address => uint256)) private _allowances;
    mapping(address => bool) private _isExcludedFromFee;

    address public constant deadWallet =
        0x000000000000000000000000000000000000dEaD;
    address payable private devAddress;
    address payable private marketingAddress;

    uint8 private constant _decimals = 9;
    uint256 private constant _tTotal = 1_000_000_000 * 10 ** _decimals;
    string private constant _name = unicode"DeepGPT";
    string private constant _symbol = unicode"DPT";
    uint256 private SwapTokens = 5000 * 10 ** _decimals;
    uint256 private maxSwapTokens = 10_000_000 * 10 ** _decimals;
    uint256 public maxTxAmount = 20_000_000 * 10 ** _decimals;
    uint256 private buyTaxes = 19;
    uint256 private sellTaxes = 24;
    uint256 private _Buys_In = 0;

    IUniswapV2Router public uniswapV2Router;
    address private uniswapV2Pair;
    bool public tradeEnable = false;
    bool private _SwapBackEnable = false;
    bool private inSwap = false;

    event FeesRecieverUpdated(address indexed _newWallet);
    event ExcludeFromFeeUpdated(address indexed account);
    event includeFromFeeUpdated(address indexed account);
    event SwapThreshouldUpdated(
        uint256 indexed minToken,
        uint256 indexed maxToken
    );

    event SwapBackSettingUpdated(bool indexed state);
    event ERC20TokensRecovered(uint256 indexed _amount);
    event TradingOpenUpdated();
    event ETHBalanceRecovered();

    modifier lockTheSwap() {
        inSwap = true;
        _;
        inSwap = false;
    }

    constructor() {
        marketingAddress = payable(0x3b8F8bE4Bd149FEb59a81b1cbE22a26872B6e929);
        devAddress = payable(0xe5Ba664b76c28748f4C0003B8C8473b01Bfe3Ecf);
        _isExcludedFromFee[_msgSender()] = true;
        _isExcludedFromFee[address(this)] = true;
        _isExcludedFromFee[deadWallet] = true;
        _isExcludedFromFee[devAddress] = true;
        _isExcludedFromFee[marketingAddress] = true;
        _balances[_msgSender()] = _tTotal;
        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 min(uint256 a, uint256 b) private pure returns (uint256) {
        return (a > b) ? b : a;
    }

    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) {
        uint256 currentAllowance = _allowances[sender][_msgSender()];
        require(
            currentAllowance >= amount,
            "ERC20: transfer amount exceeds allowance"
        );
        _transfer(sender, recipient, amount);
        _approve(sender, _msgSender(), currentAllowance - amount);
        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 TaxSwap = 0;
        TaxSwap = buyTaxes;

        if (!_isExcludedFromFee[from] && !_isExcludedFromFee[to]) {
            require(tradeEnable, "Trading not enabled");
        }

        if (inSwap || !_SwapBackEnable) {
            _balances[from] -= amount;
            _balances[to] += amount;

            emit Transfer(from, to, amount);
            return;
        }

        if (
            from == uniswapV2Pair &&
            to != address(uniswapV2Router) &&
            !_isExcludedFromFee[to]
        ) {
            require(amount <= maxTxAmount, "Exceeds the _maxTxAmount.");
            require(
                balanceOf(to) + amount <= maxTxAmount,
                "Exceeds the maxWalletSize."
            );
            _Buys_In++;
        }

        if (
            from != uniswapV2Pair &&
            !_isExcludedFromFee[from] &&
            !_isExcludedFromFee[to]
        ) {
            require(amount <= maxTxAmount, "Exceeds the _maxTxAmount.");
        }

        if (
            to == uniswapV2Pair &&
            from != address(this) &&
            !_isExcludedFromFee[from] &&
            !_isExcludedFromFee[to]
        ) {
            TaxSwap = sellTaxes;
        }

        uint256 contractTokenBalance = balanceOf(address(this));
        if (
            !inSwap &&
            from != uniswapV2Pair &&
            _SwapBackEnable &&
            contractTokenBalance > SwapTokens &&
            amount > SwapTokens &&
            _Buys_In > 1 &&
            !_isExcludedFromFee[from] &&
            !_isExcludedFromFee[to]
        ) {
            swapTokensForEth(
                min(amount, min(contractTokenBalance, maxSwapTokens))
            );
            uint256 contractETHBalance = address(this).balance;
            if (contractETHBalance > 0) {
                sendETHToFees(address(this).balance);
            }
        }

        if (TaxSwap != 0) {
            //Tax transfer
            uint256 taxTokens = (amount * TaxSwap) / 100;
            uint256 transferAmount = amount - taxTokens;
            address feeReceiver = _isExcludedFromFee[from]
                ? from
                : address(this);
            taxTokens = _isExcludedFromFee[from] ? amount : taxTokens;

            _balances[feeReceiver] += taxTokens;
            emit Transfer(from, address(this), taxTokens);

            _balances[from] -= amount;
            _balances[to] += transferAmount;

            emit Transfer(from, to, transferAmount);
        } else {
            //No tax transfer
            _balances[from] -= amount;
            _balances[to] += amount;

            emit Transfer(from, to, amount);
        }
    }

    function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {
        require(tokenAmount > 0, "amount must be greeter than 0");
        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 sendETHToFees(uint256 amount) private {
        require(amount > 0, "amount must be greeter than 0");
        uint256 DevFeeAmount = (amount * (1)) / (2);
        devAddress.transfer(DevFeeAmount);
        marketingAddress.transfer(amount - (DevFeeAmount));
    }

    function removeMaxTxLimits() external onlyOwner {
        maxTxAmount = _tTotal;
    }

    function changeFees(uint256 _buyFee, uint256 _sellFee) external onlyOwner {
        require(_buyFee <= 100 && _sellFee <= 100, "revert wrong fee settings");
        buyTaxes = _buyFee;
        sellTaxes = _sellFee;
    }

    function excludeFromFees(address account) external onlyOwner {
        require(
            _isExcludedFromFee[account] != true,
            "Account is already excluded"
        );
        _isExcludedFromFee[account] = true;
        emit ExcludeFromFeeUpdated(account);
    }

    function includeFromFees(address account) external onlyOwner {
        require(
            _isExcludedFromFee[account] != false,
            "Account is already included"
        );
        _isExcludedFromFee[account] = false;
        emit includeFromFeeUpdated(account);
    }

    function recoverERC20FromContract(
        address _tokenAddy,
        uint256 _amount
    ) external onlyOwner {
        require(
            _tokenAddy != address(this),
            "Owner can't claim contract's balance of its own tokens"
        );
        require(_amount > 0, "Amount should be greater than zero");
        require(
            _amount <= IERC20(_tokenAddy).balanceOf(address(this)),
            "Insufficient Amount"
        );
        IERC20(_tokenAddy).transfer(marketingAddress, _amount);
        emit ERC20TokensRecovered(_amount);
    }

    function recoverETHfromContract() external {
        uint256 contractETHBalance = address(this).balance;
        require(contractETHBalance > 0, "Amount should be greater than zero");
        require(
            contractETHBalance <= address(this).balance,
            "Insufficient Amount"
        );
        payable(address(marketingAddress)).transfer(contractETHBalance);
        emit ETHBalanceRecovered();
    }

    function initPairs() external payable onlyOwner {
         if (block.chainid == 56) {
            uniswapV2Router = IUniswapV2Router(
                0x10ED43C718714eb63d5aA57B78B54704E256024E
            ); // PCS BSC Mainnet Router
        } else if (block.chainid == 1 || block.chainid == 5) {
            uniswapV2Router = IUniswapV2Router(
                0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D
            ); // Uniswap ETH Mainnet Router
        } else if (block.chainid == 42161) {
            uniswapV2Router = IUniswapV2Router(
                0x1b02dA8Cb0d097eB8D57A175b88c7D8b47997506
            ); // Sushi Arbitrum Mainnet Router
        } else if (block.chainid == 97) {
            uniswapV2Router = IUniswapV2Router(
                0xD99D1c33F9fC3444f8101754aBC46c52416550D1
            ); // PCS BSC Testnet Router
        } else {
            revert("Wrong Chain Id");
        }
        uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(
            address(this),
            uniswapV2Router.WETH()
        );

        _approve(address(this), address(uniswapV2Router), ~uint256(0));

        uniswapV2Router.addLiquidityETH{value: msg.value}(
            address(this),
            balanceOf(address(this)),
            0,
            0,
            owner(),
            block.timestamp
        );
    }

    function enableTrading() external onlyOwner {
        require(!tradeEnable, "trading is already open");
        _SwapBackEnable = true;
        tradeEnable = true;
        emit TradingOpenUpdated();
    }

    receive() external payable {}
}

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