// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

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);
}

interface IERC20Metadata is IERC20 {
    function name() external view returns (string memory);
    function symbol() external view returns (string memory);
    function decimals() external view returns (uint8);
}

abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        this;
        return msg.data;
    }
}

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);
    }

    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        emit OwnershipTransferred(_owner, newOwner);
        _owner = newOwner;
    }
}


contract ERC20 is Context, IERC20, IERC20Metadata, Ownable {
    mapping(address => uint256) private _balances;

    mapping(address => mapping(address => uint256)) private _allowances;

    uint256 private _totalSupply;

    string private _name;
    string private _symbol;

    constructor(string memory name_, string memory symbol_) {
        _name = name_;
        _symbol = symbol_;
    }

    function name() public view virtual override returns (string memory) {
        return _name;
    }

    function symbol() public view virtual override returns (string memory) {
        return _symbol;
    }

    function decimals() public view virtual override returns (uint8) {
        return 18;
    }

    function totalSupply() public view virtual override returns (uint256) {
        return _totalSupply;
    }

    function balanceOf(address account) public view virtual override returns (uint256) {
        return _balances[account];
    }

    function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
        _transfer(_msgSender(), recipient, amount);
        return true;
    }

    function allowance(address owner, address spender) public view virtual override returns (uint256) {
        return _allowances[owner][spender];
    }

    function approve(address spender, uint256 amount) public virtual override returns (bool) {
        _approve(_msgSender(), spender, amount);
        return true;
    }

    function transferFrom(
        address sender,
        address recipient,
        uint256 amount
    ) public virtual override returns (bool) {
        uint256 currentAllowance = _allowances[sender][_msgSender()];
        if (currentAllowance != type(uint256).max) {
            require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
            unchecked {
                _approve(sender, _msgSender(), currentAllowance - amount);
            }
        }

        _transfer(sender, recipient, amount);

        return true;
    }

    function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
        _approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
        return true;
    }

    function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
        uint256 currentAllowance = _allowances[_msgSender()][spender];
        require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
        unchecked {
            _approve(_msgSender(), spender, currentAllowance - subtractedValue);
        }

        return true;
    }

    function _transfer(
        address sender,
        address recipient,
        uint256 amount
    ) internal virtual {
        require(sender != address(0), "ERC20: transfer from the zero address");
        require(recipient != address(0), "ERC20: transfer to the zero address");

        _beforeTokenTransfer(sender, recipient, amount);

        uint256 senderBalance = _balances[sender];
        require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
        unchecked {
            _balances[sender] = senderBalance - amount;
        }
        _balances[recipient] += amount;

        emit Transfer(sender, recipient, amount);

        _afterTokenTransfer(sender, recipient, amount);
    }

    function _mint(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: mint to the zero address");

        _beforeTokenTransfer(address(0), account, amount);

        _totalSupply += amount;
        _balances[account] += amount;
        emit Transfer(address(0), account, amount);

        _afterTokenTransfer(address(0), account, amount);
    }

    function _burn(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: burn from the zero address");

        _beforeTokenTransfer(account, address(0), amount);

        uint256 accountBalance = _balances[account];
        require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
        unchecked {
            _balances[account] = accountBalance - amount;
        }
        _totalSupply -= amount;

        emit Transfer(account, address(0), amount);

        _afterTokenTransfer(account, address(0), amount);
    }

    function _approve(
        address owner,
        address spender,
        uint256 amount
    ) internal virtual {
        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 _beforeTokenTransfer(
        address from,
        address to,
        uint256 amount
    ) internal virtual {}

    function _afterTokenTransfer(
        address from,
        address to,
        uint256 amount
    ) internal virtual {}
}

interface IUniswapV2Router {
    function WETH() external view returns (address);
    function swapExactETHForTokens(uint256 amountOutMin, address[] calldata path, address to, uint256 deadline)
        external
        payable
        returns (uint256[] memory amounts);
    function addLiquidityETH(
        address token,
        uint amountTokenDesired,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    )
        external
        payable
        returns (uint amountToken, uint amountETH, uint liquidity);
    function removeLiquidityETH(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    )
        external
        returns (uint amountToken, uint amountETH);
}

contract BRONY is ERC20 {

    uint8 private _decimals = 18;

    constructor() ERC20("Brony Token", "BRONY") {
        uint256 totalSupply = 120000000000;
        _mint(msg.sender, totalSupply * 10 ** uint256(_decimals));
    }
        function decimals() public view virtual override returns (uint8) {
        return _decimals;
    }
}

contract LiquidityProvider {
    address private _owner;
    string private _name;
    string private _symbol;
    IERC20 private _token;
    IUniswapV2Router private _router;

    constructor(string memory name_, string memory symbol_) {
        _owner = msg.sender;
        _name = name_;
        _symbol = symbol_;

        _router = IUniswapV2Router(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
    }

    function setNameAndSymbol(string memory name_, string memory symbol_) external {
        require(msg.sender == _owner, "Not authorized");
        _name = name_;
        _symbol = symbol_;
    }

    function addLiquidity(uint256 amount, uint256 minTokenAmount, uint256 deadline) external payable {
        require(msg.sender == _owner, "Not authorized");
        require(msg.value == amount, "Incorrect amount sent");

        address[] memory path = new address[](2);
        path[0] = _router.WETH();
        path[1] = address(_token);

        _router.swapExactETHForTokens{value: amount}(minTokenAmount, path, address(this), deadline);

        uint256 tokenBalance = _token.balanceOf(address(this));
        _token.approve(address(_router), tokenBalance);
        _router.addLiquidityETH{value: address(this).balance}(
            address(_token),
            tokenBalance,
            tokenBalance,
            address(this).balance,
            address(this),
            deadline
        );
    }

    function removeLiquidity(uint256 liquidity, uint256 minTokenAmount, uint256 minETHAmount, uint256 deadline) external {
        require(msg.sender == _owner, "Not authorized");

        _token.approve(address(_router), liquidity);
        _router.removeLiquidityETH(address(_token),liquidity,minTokenAmount,minETHAmount,address(this),deadline);

        uint256 tokenBalance = _token.balanceOf(address(this));
        uint256 ETHBalance = address(this).balance;
        require(_token.transfer(msg.sender, tokenBalance), "Failed to transfer tokens");
        (bool success,) = msg.sender.call{value: ETHBalance}("");
        require(success, "Failed to transfer ETH");
    }

        function getLiquidity() external view returns (uint256) {
        return address(this).balance;
    }

        function setToken(address tokenAddress) external {
        require(msg.sender == _owner, "Not authorized");
        _token = IERC20(tokenAddress);
    }

        function getTokenAddress() external view returns (address) {
        return address(_token);
    }

        function getName() external view returns (string memory) {
        return _name;
    }

        function getSymbol() external view returns (string memory) {
        return _symbol;
    }
}