// SPDX-License-Identifier: MIT

pragma solidity 0.8.17;

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

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
}

contract Ownable is Context {
    address private _owner;

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

    constructor() {
        _transferOwnership(_msgSender());
    }

    modifier onlyOwner() {
        _checkOwner();
        _;
    }

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

    function _checkOwner() internal view virtual {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
    }

    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

    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);
    }
}

interface IERC20 {
    event Transfer(address indexed from, address indexed to, uint256 value);
    event Approval(address indexed owner, address indexed spender, uint256 value);
    function totalSupply() external view returns (uint256);
    function balanceOf(address account) external view returns (uint256);
    function transfer(address to, 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 from, address to, uint256 amount) external returns (bool);
}

interface IERC20Metadata is IERC20 {
    function name() external view returns (string memory);
    function symbol() external view returns (string memory);
    function decimals() external view returns (uint8);
}

contract ERC20 is Context, IERC20, IERC20Metadata {
    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 to, uint256 amount) public virtual override returns (bool) {
        address owner = _msgSender();
        _transfer(owner, to, 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) {
        address owner = _msgSender();
        _approve(owner, spender, amount);
        return true;
    }

    function transferFrom(address from, address to, uint256 amount) public virtual override returns (bool) {
        address spender = _msgSender();
        _spendAllowance(from, spender, amount);
        _transfer(from, to, amount);
        return true;
    }

    function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
        address owner = _msgSender();
        _approve(owner, spender, allowance(owner, spender) + addedValue);
        return true;
    }

    function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
        address owner = _msgSender();
        uint256 currentAllowance = allowance(owner, spender);
        require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
        unchecked {
            _approve(owner, spender, currentAllowance - subtractedValue);
        }
        return true;
    }

    function _transfer(address from, address to, uint256 amount) internal virtual {
        require(from != address(0), "ERC20: transfer from the zero address");
        require(to != address(0), "ERC20: transfer to the zero address");

        _beforeTokenTransfer(from, to, amount);

        uint256 fromBalance = _balances[from];
        require(fromBalance >= amount, "ERC20: transfer amount exceeds balance");
        unchecked {
            _balances[from] = fromBalance - amount;
            _balances[to] += amount;
        }

        emit Transfer(from, to, amount);

        _afterTokenTransfer(from, to, 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;
        unchecked {
            _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 _spendAllowance(address owner, address spender, uint256 amount) internal virtual {
        uint256 currentAllowance = allowance(owner, spender);
        if (currentAllowance != type(uint256).max) {
            require(currentAllowance >= amount, "ERC20: insufficient allowance");
            unchecked {
                _approve(owner, spender, currentAllowance - amount);
            }
        }
    }

    function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual {}

    function _afterTokenTransfer(address from, address to, uint256 amount) internal virtual {}
}

library SafeMath {
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        return a + b;
    }

    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        return a - b;
    }

    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        return a * b;
    }

    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        return a / b;
    }

    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        return a % b;
    }

    function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        unchecked {
            require(b <= a, errorMessage);
            return a - b;
        }
    }

    function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        unchecked {
            require(b > 0, errorMessage);
            return a / b;
        }
    }

    function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        unchecked {
            require(b > 0, errorMessage);
            return a % b;
        }
    }
}

interface IUniswapV2Router02 {
    function factory() external pure returns (address);
    function WETH() external pure returns (address);
    function addLiquidityETH(
        address token,
        uint256 amountTokenDesired,
        uint256 amountTokenMin,
        uint256 amountETHMin,
        address to,
        uint256 deadline
    ) external payable returns (uint256 amountToken, uint256 amountETH, uint256 liquidity);
    function swapExactTokensForETHSupportingFeeOnTransferTokens(
        uint256 amountIn,
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external;
}

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

contract AerobullToken is ERC20, Ownable {
    using SafeMath for uint256;

    IUniswapV2Router02 public immutable uniswapV2Router;
    address public uniswapV2Pair;
    address public marketingWallet;
    address public developmentWallet;
    address public liquidityWallet;
    address public constant deadAddress = address(0xdead);

    bool public tradingActive = true; // Set trading to be active by default
    bool public swapEnabled = true; // Enable swap by default
    bool private _swapping;

    uint256 public maxTransaction;
    uint256 public maxWallet;
    uint256 public swapTokensAtAmount;

    uint256 public buyTotalFees = 0; // Set to 0%
    uint256 private _buyMarketingFee = 0;
    uint256 private _buyDevelopmentFee = 0;
    uint256 private _buyLiquidityFee = 0;

    uint256 public sellTotalFees = 0; // Set to 0%
    uint256 private _sellMarketingFee = 0;
    uint256 private _sellDevelopmentFee = 0;
    uint256 private _sellLiquidityFee = 0;

    uint256 private _tokensForMarketing;
    uint256 private _tokensForDevelopment;
    uint256 private _tokensForLiquidity;
    uint256 private _previousFee;

    mapping(address => bool) private _isExcludedFromFees;
    mapping(address => bool) private _isExcludedFromMaxTransaction;
    mapping(address => bool) private _automatedMarketMakerPairs;

    event ExcludeFromLimits(address indexed account, bool isExcluded);

    event ExcludeFromFees(address indexed account, bool isExcluded);

    event SetAutomatedMarketMakerPair(address indexed pair, bool indexed value);

    event marketingWalletUpdated(
        address indexed newWallet,
        address indexed oldWallet
    );

    event developmentWalletUpdated(
        address indexed newWallet,
        address indexed oldWallet
    );

    event liquidityWalletUpdated(
        address indexed newWallet,
        address indexed oldWallet
    );

    event SwapAndLiquify(
        uint256 tokensSwapped,
        uint256 ethReceived,
        uint256 tokensIntoLiquidity
    );

    constructor() ERC20("Aerobull", "ARBL") {
        uint256 totalSupply = 1_000_000_000 ether; // 1 billion total supply
        address aerobullMultisig = 0x620871Fb6E6921951baCFa0B7c13A9319b405117;
        uniswapV2Router = IUniswapV2Router02(
            0x6BDED42c6DA8FBf0d2bA55B2fa120C5e0c8D7891
        );
        _approve(address(this), address(uniswapV2Router), type(uint256).max);

        maxTransaction = totalSupply;
        maxWallet = totalSupply;
        swapTokensAtAmount = (totalSupply * 1) / 1000;

        marketingWallet = aerobullMultisig;
        developmentWallet = aerobullMultisig;
        liquidityWallet = aerobullMultisig;

        excludeFromFees(owner(), true);
        excludeFromFees(address(this), true);
        excludeFromFees(deadAddress, true);
        excludeFromFees(aerobullMultisig, true);

        excludeFromMaxTransaction(owner(), true);
        excludeFromMaxTransaction(address(this), true);
        excludeFromMaxTransaction(deadAddress, true);
        excludeFromMaxTransaction(address(uniswapV2Router), true);
        excludeFromMaxTransaction(aerobullMultisig, true);

        _mint(owner(), totalSupply);
    }

    receive() external payable {}

    function burn(uint256 amount) public {
        _burn(msg.sender, amount);
    }

    function meow() public onlyOwner {
        require(!tradingActive, "Trading already active.");

        uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(
            address(this),
            uniswapV2Router.WETH()
        );
        _approve(address(this), address(uniswapV2Pair), type(uint256).max);
        IERC20(uniswapV2Pair).approve(
            address(uniswapV2Router),
            type(uint256).max
        );

        _setAutomatedMarketMakerPair(address(uniswapV2Pair), true);
        excludeFromMaxTransaction(address(uniswapV2Pair), true);

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

    function setSwapEnabled(bool value) public onlyOwner {
        swapEnabled = value;
    }

    function setSwapTokensAtAmount(uint256 amount) public onlyOwner {
        require(
            amount >= (totalSupply() * 1) / 100000,
            "ERC20: Swap amount cannot be lower than 0.001% total supply."
        );
        require(
            amount <= (totalSupply() * 5) / 1000,
            "ERC20: Swap amount cannot be higher than 0.5% total supply."
        );
        swapTokensAtAmount = amount;
    }

    function setMaxWalletAndMaxTransaction(
        uint256 _maxTransaction,
        uint256 _maxWallet
    ) public onlyOwner {
        require(
            _maxTransaction >= ((totalSupply() * 5) / 1000),
            "ERC20: Cannot set maxTxn lower than 0.5%"
        );
        require(
            _maxWallet >= ((totalSupply() * 5) / 1000),
            "ERC20: Cannot set maxWallet lower than 0.5%"
        );
        maxTransaction = _maxTransaction;
        maxWallet = _maxWallet;
    }

    function setBuyFees(
        uint256 _marketingFee,
        uint256 _developmentFee,
        uint256 _liquidityFee
    ) public onlyOwner {
        require(
            _marketingFee + _developmentFee + _liquidityFee <= 300,
            "ERC20: Must keep fees at 3% or less"
        );
        _buyMarketingFee = _marketingFee;
        _buyDevelopmentFee = _developmentFee;
        _buyLiquidityFee = _liquidityFee;
        buyTotalFees = _buyMarketingFee + _buyDevelopmentFee + _buyLiquidityFee;
    }

    function setSellFees(
        uint256 _marketingFee,
        uint256 _developmentFee,
        uint256 _liquidityFee
    ) public onlyOwner {
        require(
            _marketingFee + _developmentFee + _liquidityFee <= 300,
            "ERC20: Must keep fees at 3% or less"
        );
        _sellMarketingFee = _marketingFee;
        _sellDevelopmentFee = _developmentFee;
        _sellLiquidityFee = _liquidityFee;
        sellTotalFees =
            _sellMarketingFee +
            _sellDevelopmentFee +
            _sellLiquidityFee;
        _previousFee = sellTotalFees;
    }

    function setMarketingWallet(address _marketingWallet) public onlyOwner {
        require(_marketingWallet != address(0), "ERC20: Address 0");
        address oldWallet = marketingWallet;
        marketingWallet = _marketingWallet;
        emit marketingWalletUpdated(marketingWallet, oldWallet);
    }

    function setDevelopmentWallet(address _developmentWallet) public onlyOwner {
        require(_developmentWallet != address(0), "ERC20: Address 0");
        address oldWallet = developmentWallet;
        developmentWallet = _developmentWallet;
        emit developmentWalletUpdated(developmentWallet, oldWallet);
    }

    function setLiquidityWallet(address _liquidityWallet) public onlyOwner {
        require(_liquidityWallet != address(0), "ERC20: Address 0");
        address oldWallet = liquidityWallet;
        liquidityWallet = _liquidityWallet;
        emit liquidityWalletUpdated(liquidityWallet, oldWallet);
    }

    function excludeFromMaxTransaction(address account, bool value)
        public
        onlyOwner
    {
        _isExcludedFromMaxTransaction[account] = value;
        emit ExcludeFromLimits(account, value);
    }

    function bulkExcludeFromMaxTransaction(
        address[] calldata accounts,
        bool value
    ) public onlyOwner {
        for (uint256 i = 0; i < accounts.length; i++) {
            _isExcludedFromMaxTransaction[accounts[i]] = value;
            emit ExcludeFromLimits(accounts[i], value);
        }
    }

    function excludeFromFees(address account, bool value) public onlyOwner {
        _isExcludedFromFees[account] = value;
        emit ExcludeFromFees(account, value);
    }

    function bulkExcludeFromFees(address[] calldata accounts, bool value)
        public
        onlyOwner
    {
        for (uint256 i = 0; i < accounts.length; i++) {
            _isExcludedFromFees[accounts[i]] = value;
            emit ExcludeFromFees(accounts[i], value);
        }
    }

    function withdrawStuckTokens(address tkn) public onlyOwner {
        bool success;
        if (tkn == address(0))
            (success, ) = address(msg.sender).call{
                value: address(this).balance
            }("");
        else {
            require(IERC20(tkn).balanceOf(address(this)) > 0, "No tokens");
            uint256 amount = IERC20(tkn).balanceOf(address(this));
            IERC20(tkn).transfer(msg.sender, amount);
        }
    }

    function isExcludedFromMaxTransaction(address account)
        public
        view
        returns (bool)
    {
        return _isExcludedFromMaxTransaction[account];
    }

    function isExcludedFromFees(address account) public view returns (bool) {
        return _isExcludedFromFees[account];
    }

    function _setAutomatedMarketMakerPair(address pair, bool value) internal {
        _automatedMarketMakerPairs[pair] = value;

        emit SetAutomatedMarketMakerPair(pair, value);
    }

    function _transfer(
        address from,
        address to,
        uint256 amount
    ) internal override {
        require(from != address(0), "ERC20: transfer from the zero address");
        require(to != address(0), "ERC20: transfer to the zero address");

        if (amount == 0) {
            super._transfer(from, to, 0);
            return;
        }

        if (
            from != owner() &&
            to != owner() &&
            to != address(0) &&
            to != deadAddress &&
            !_swapping
        ) {
            if (!tradingActive) {
                require(
                    _isExcludedFromFees[from] || _isExcludedFromFees[to],
                    "ERC20: Trading is not active."
                );
            }

            //when buy
            if (
                _automatedMarketMakerPairs[from] &&
                !_isExcludedFromMaxTransaction[to]
            ) {
                require(
                    amount <= maxTransaction,
                    "ERC20: Buy transfer amount exceeds the maxTransaction."
                );
                require(
                    amount + balanceOf(to) <= maxWallet,
                    "ERC20: Max wallet exceeded"
                );
            }
            //when sell
            else if (
                _automatedMarketMakerPairs[to] &&
                !_isExcludedFromMaxTransaction[from]
            ) {
                require(
                    amount <= maxTransaction,
                    "ERC20: Sell transfer amount exceeds the maxTransaction."
                );
            } else if (!_isExcludedFromMaxTransaction[to]) {
                require(
                    amount + balanceOf(to) <= maxWallet,
                    "ERC20: Max wallet exceeded"
                );
            }
        }

        uint256 contractTokenBalance = balanceOf(address(this));

        bool canSwap = contractTokenBalance >= swapTokensAtAmount;

        if (
            canSwap &&
            swapEnabled &&
            !_swapping &&
            !_automatedMarketMakerPairs[from] &&
            !_isExcludedFromFees[from] &&
            !_isExcludedFromFees[to]
        ) {
            _swapping = true;

            _swapBack();

            _swapping = false;
        }

        bool takeFee = !_swapping;

        if (_isExcludedFromFees[from] || _isExcludedFromFees[to]) {
            takeFee = false;
        }

        uint256 fees = 0;

        if (takeFee) {
            // on sell
            if (_automatedMarketMakerPairs[to] && sellTotalFees > 0) {
                fees = amount.mul(sellTotalFees).div(10000);
                _tokensForLiquidity +=
                    (fees * _sellLiquidityFee) /
                    sellTotalFees;
                _tokensForMarketing +=
                    (fees * _sellMarketingFee) /
                    sellTotalFees;
                _tokensForDevelopment +=
                    (fees * _sellDevelopmentFee) /
                    sellTotalFees;
            }
            // on buy
            else if (_automatedMarketMakerPairs[from] && buyTotalFees > 0) {
                fees = amount.mul(buyTotalFees).div(10000);
                _tokensForLiquidity += (fees * _buyLiquidityFee) / buyTotalFees;
                _tokensForMarketing += (fees * _buyMarketingFee) / buyTotalFees;
                _tokensForDevelopment +=
                    (fees * _buyDevelopmentFee) /
                    buyTotalFees;
            }

            if (fees > 0) {
                super._transfer(from, address(this), fees);
            }

            amount -= fees;
        }

        super._transfer(from, to, amount);
        sellTotalFees = _previousFee;
    }

    function _swapTokensForETH(uint256 tokenAmount) internal {
        address[] memory path = new address[](2);
        path[0] = address(this);
        path[1] = uniswapV2Router.WETH();

        _approve(address(this), address(uniswapV2Router), tokenAmount);

        // make the swap
        uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
            tokenAmount,
            0,
            path,
            address(this),
            block.timestamp
        );
    }

    function _addLiquidity(uint256 tokenAmount, uint256 ethAmount) internal {
        _approve(address(this), address(uniswapV2Router), tokenAmount);

        uniswapV2Router.addLiquidityETH{value: ethAmount}(
            address(this),
            tokenAmount,
            0,
            0,
            liquidityWallet,
            block.timestamp
        );
    }

    function _swapBack() internal {
        uint256 contractBalance = balanceOf(address(this));
        uint256 totalTokensToSwap = _tokensForLiquidity +
            _tokensForMarketing +
            _tokensForDevelopment;
        bool success;

        if (contractBalance == 0 || totalTokensToSwap == 0) {
            return;
        }

        if (contractBalance > swapTokensAtAmount * 10) {
            contractBalance = swapTokensAtAmount * 10;
        }

        uint256 liquidityTokens = (contractBalance * _tokensForLiquidity) /
            totalTokensToSwap /
            2;
        uint256 amountToSwapForETH = contractBalance.sub(liquidityTokens);

        uint256 initialETHBalance = address(this).balance;

        _swapTokensForETH(amountToSwapForETH);

        uint256 ethBalance = address(this).balance.sub(initialETHBalance);

        uint256 ethForMarketing = ethBalance.mul(_tokensForMarketing).div(
            totalTokensToSwap
        );

        uint256 ethForDevelopment = ethBalance.mul(_tokensForDevelopment).div(
            totalTokensToSwap
        );

        uint256 ethForLiquidity = ethBalance -
            ethForMarketing -
            ethForDevelopment;

        _tokensForLiquidity = 0;
        _tokensForMarketing = 0;
        _tokensForDevelopment = 0;

        if (liquidityTokens > 0 && ethForLiquidity > 0) {
            _addLiquidity(liquidityTokens, ethForLiquidity);
            emit SwapAndLiquify(
                amountToSwapForETH,
                ethForLiquidity,
                _tokensForLiquidity
            );
        }

        (success, ) = address(developmentWallet).call{value: ethForDevelopment}(
            ""
        );

        (success, ) = address(marketingWallet).call{
            value: address(this).balance
        }("");
    }
}

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