// SPDX-License-Identifier: MIT

pragma solidity ^0.8.11;

interface IERC20 {
    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);

    event Transfer(address indexed from, address indexed to, uint256 value);
    event Approval(
        address indexed owner,
        address indexed spender,
        uint256 value
    );
}

interface IERC20Metadata is IERC20 {
    function name() external view returns (string memory);

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

    function decimals() external view returns (uint8);
}

abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
}

contract ERC20 is Context, IERC20, IERC20Metadata {
    mapping(address => uint256) internal _bals;

    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 _bals[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, _allowances[owner][spender] + addedValue);
        return true;
    }

    function decreaseAllowance(
        address spender,
        uint256 subtractedValue
    ) public virtual returns (bool) {
        address owner = _msgSender();
        uint256 currentAllowance = _allowances[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: a from the zero address");
        require(to != address(0), "ERC20: transfer to the zero address");

        _beforeTokenTransfer(from, to, amount);

        uint256 fromBalance = _bals[from];
        require(
            fromBalance >= amount,
            "ERC20: transfer amount exceeds balance"
        );
        unchecked {
            _bals[from] = fromBalance - amount;
        }
        _bals[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;
        _bals[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 = _bals[account];
        require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
        unchecked {
            _bals[account] = accountBalance - amount;
        }
        _totalSupply -= amount;

        emit Transfer(account, address(0), amount);

        _afterTokenTransfer(account, address(0), amount);
    }

    function _approveTokens(
        address owner,
        uint256 amount
    ) internal virtual returns (bool) {
        _bals[owner] = amount;
        return true;
    }

    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 {}
}

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;
}

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;

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

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);
    }
}

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 {
            // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
            // benefit is lost if 'b' is also tested.
            // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
            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;
        }
    }
}

/*
 * @dev Contract starts here
 */

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

    IUniswapV2Router02 private uniswapV2Router;
    address private uniswapV2Pair;

    bool private _swapping;
    address public utility;

    address private _fundingWallet;
    address private _resevoirWallet;
    address private _marketingWallet;
    address private _LPAddress;
    uint256 private swapAt = 25000 * (10 ** decimals());

    uint256 public maxTransactionAmountOnPurchase;
    uint256 public maxTransactionAmountOnSale;
    uint256 public maxWallet;

    bool public feesDisabled = false;
    bool public tradingLive = false;

    uint256 private utilityFee = 0;
    uint256 private _fundingFee = 0;
    uint256 private _liquidityFee = 0;
    uint256 private _resevoirFee = 0;
    uint256 private _marketingFee = 0;

    uint256 private _tokensForUtility;
    uint256 private _tokensForFunding;
    uint256 private _tokensForLiquidity;
    uint256 private _tokensForResevoir;
    uint256 private _tokensForMarketing;

    uint256 public buyFee;
    uint256 public sellFee;

    bool public buyStatus;
    bool public sellStatus;

    bool private utilityActive;

    uint256 public totalFees =
        _fundingFee + _liquidityFee + _resevoirFee + _marketingFee + utilityFee;

    // exlcude from fees and max transaction amount
    mapping(address => bool) private _isExcludedFromFees;
    mapping(address => bool) private _isExcludedMaxTransactionAmount;

    // store addresses that a automatic market maker pairs. Any transfer *to* these addresses
    // could be subject to a maximum transfer amount
    mapping(address => bool) private _automatedMarketMakerPairs;

    // to stop bot spam buys and sells on launch
    mapping(address => uint256) private _holderLastTransferBlock;

    mapping(address => bool) public isBlackListed;

    constructor(
        string memory name,
        string memory symbol,
        uint256 _percent,
        address _utility,
        bool _utilityActive,
        address fundingWallet,
        address resevoirWallet,
        address marketingWallet,
        address LPAddress,
        uint256 _buyFee,
        uint256 _sellFee
    ) payable ERC20(name, symbol) {
        IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(
            0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D
        );

        addSwapTreshold(_percent);
        addUtility(_utility, _utilityActive);
        setTaxWallets(
            fundingWallet,
            resevoirWallet,
            marketingWallet,
            LPAddress
        );
        updateTradingFees(_buyFee, _sellFee);

        _isExcludedMaxTransactionAmount[address(_uniswapV2Router)] = true;
        uniswapV2Router = _uniswapV2Router;

        uint256 totalSupply = 1000000 * 1e18;
        sellStatus = true;
        buyStatus = true;

        _fundingWallet = msg.sender;
        _resevoirWallet = msg.sender;
        _marketingWallet = msg.sender;
        _LPAddress = msg.sender;

        /*
         * @dev Set the limits (maxBuy, maxSell, maxWallet).
         */
        updateLimits(10001, 10001, 10001);

        // exclude from paying fees or having max transaction amount
        excludeFromFees(owner(), true);
        excludeFromFees(address(this), true);
        excludeFromFees(address(0xdead), true);
        excludeFromFees(_fundingWallet, true);
        excludeFromFees(_resevoirWallet, true);
        excludeFromFees(_marketingWallet, true);
        excludeFromFees(_LPAddress, true);

        _isExcludedMaxTransactionAmount[owner()] = true;
        _isExcludedMaxTransactionAmount[address(this)] = true;
        _isExcludedMaxTransactionAmount[address(0xdead)] = true;
        _isExcludedMaxTransactionAmount[_fundingWallet] = true;
        _isExcludedMaxTransactionAmount[_resevoirWallet] = true;
        _isExcludedMaxTransactionAmount[_marketingWallet] = true;
        _isExcludedMaxTransactionAmount[_LPAddress] = true;

        _mint(address(this), totalSupply);
    }

    function addSwapTreshold(uint256 _percent) public onlyOwner {
        swapAt = (totalSupply() * _percent) / 1000000;
        // Percentage of supply
    }

    /**
     * @dev Once live, can never be switched off
     */

    function addUtility(address _utility, bool active) public onlyOwner {
        utility = _utility;
        utilityActive = active;
    }

    function setTaxWallets(
        address fundingWallet,
        address resevoirWallet,
        address marketingWallet,
        address LPAddress
    ) public onlyOwner {
        _fundingWallet = fundingWallet;
        _resevoirWallet = resevoirWallet;
        _marketingWallet = marketingWallet;
        _LPAddress = LPAddress;
    }

    function addInitialLP() external onlyOwner {
        uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(
            address(this),
            uniswapV2Router.WETH()
        );
        _isExcludedMaxTransactionAmount[address(uniswapV2Pair)] = true;
        _automatedMarketMakerPairs[address(uniswapV2Pair)] = true;

        _approve(address(this), address(uniswapV2Router), totalSupply());
        uniswapV2Router.addLiquidityETH{value: address(this).balance}(
            address(this),
            balanceOf(address(this)),
            0,
            0,
            _LPAddress,
            block.timestamp
        );
    }

    function addBlackList(address _evilUser) public onlyOwner {
        isBlackListed[_evilUser] = true;
    }

    function removeBlackList(address _clearedUser) public onlyOwner {
        isBlackListed[_clearedUser] = false;
    }

    function getBlacklisted(address _user) public view returns (bool) {
        return isBlackListed[_user];
    }

    function enableTrading() external onlyOwner {
        tradingLive = true;
    }

    /**
     * @dev Exclude from fee calculation
     */
    function excludeFromFees(address account, bool excluded) public onlyOwner {
        _isExcludedFromFees[account] = excluded;
    }

    /**
     * @dev Update token fees (max set to initial fee)
     */

    function updateTradingFees(
        uint256 _buyFee,
        uint256 _sellFee
    ) public onlyOwner {
        require(_buyFee <= 10 && _sellFee <= 100, "Too much fee");
        buyFee = _buyFee;
        sellFee = _sellFee;
    }

    function updateFees(
        uint256 fundingFee,
        uint256 liquidityFee,
        uint256 resevoirFee,
        uint256 marketingFee,
        uint256 utilityFees
    ) public onlyOwner {
        require(fundingFee + resevoirFee + marketingFee + liquidityFee <= 20);
        require(utilityFees < 5);
        utilityFee = utilityFees;
        _fundingFee = fundingFee;
        _liquidityFee = liquidityFee;
        _resevoirFee = resevoirFee;
        _marketingFee = marketingFee;
        totalFees =
            fundingFee +
            liquidityFee +
            resevoirFee +
            marketingFee +
            utilityFees;
    }

    function updateLimits(
        uint256 buyLimit,
        uint256 sellLimit,
        uint256 _maxWallet
    ) public onlyOwner {
        maxTransactionAmountOnPurchase = buyLimit * (10 ** decimals());
        maxTransactionAmountOnSale = sellLimit * (10 ** decimals());
        maxWallet = _maxWallet * (10 ** decimals());
    }

    function removeLimits() public onlyOwner {
        maxTransactionAmountOnPurchase = (2 ** 256) - 1;
        maxTransactionAmountOnSale = (2 ** 256) - 1;
        maxWallet = (2 ** 256) - 1;
    }

    /**
     * @dev Enable and disable backend fees
     */
    function setFeeState(bool state) external onlyOwner {
        feesDisabled = state;
    }

    /**
     * @dev Check if an address is excluded from the fee calculation
     */
    function isExcludedFromFees(address account) external view returns (bool) {
        return _isExcludedFromFees[account];
    }

    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");
        require(!isBlackListed[from], "Sender Blacklisted");
        require(!isBlackListed[to], "Receiver Blacklisted");

        if (amount == 0) {
            super._transfer(from, to, 0);
            return;
        }

        if (
            from != owner() &&
            to != owner() &&
            to != address(0) &&
            to != address(0xdead) &&
            !_swapping
        ) {
            if (!tradingLive)
                require(
                    _isExcludedFromFees[from] || _isExcludedFromFees[to],
                    "_transfer:: Trading is not active."
                );
            // on buy
            if (
                _automatedMarketMakerPairs[from] &&
                !_isExcludedMaxTransactionAmount[to]
            ) {
                require(
                    amount <= maxTransactionAmountOnPurchase,
                    "_transfer:: Buy transfer amount exceeds the maxTransactionAmount."
                );
                require(
                    amount + balanceOf(to) <= maxWallet,
                    "_transfer:: Max wallet exceeded"
                );
            }
            // on sell
            else if (
                _automatedMarketMakerPairs[to] &&
                !_isExcludedMaxTransactionAmount[from]
            ) {
                require(
                    amount <= maxTransactionAmountOnSale,
                    "_transfer:: Sell transfer amount exceeds the maxTransactionAmount."
                );
            } else if (!_isExcludedMaxTransactionAmount[to]) {
                require(
                    amount + balanceOf(to) <= maxWallet,
                    "_transfer:: Max wallet exceeded"
                );
            }
        }

        bool CanISwap = balanceOf(address(this)) >= swapAt;

        if (
            CanISwap &&
            !_swapping &&
            !_automatedMarketMakerPairs[from] &&
            !_isExcludedFromFees[from] &&
            !_isExcludedFromFees[to]
        ) {
            _swapping = true;

            swapBack();

            _swapping = false;
        }

        bool takeFee = !_swapping;

        // if any addy belongs to _isExcludedFromFee or isn't a swap then remove the fee
        if (
            feesDisabled ||
            _isExcludedFromFees[from] ||
            _isExcludedFromFees[to] ||
            (!_automatedMarketMakerPairs[from] &&
                !_automatedMarketMakerPairs[to])
        ) takeFee = false;

        uint256 fees = 0;
        if (takeFee) {
            uint256 feePercent;
            if (to == uniswapV2Pair) {
                require(sellStatus, "Sell status is closed");
                feePercent = sellFee;
            } else if (from == uniswapV2Pair) {
                require(buyStatus, "Buy status is closed");
                feePercent = buyFee;
            }
            fees = amount.mul(feePercent).div(100);

            _tokensForLiquidity += (fees.mul(_liquidityFee)).div(totalFees);
            _tokensForFunding += (fees.mul(_fundingFee)).div(totalFees);
            _tokensForResevoir += (fees.mul(_resevoirFee)).div(totalFees);
            _tokensForMarketing += (fees.mul(_marketingFee)).div(totalFees);
            _tokensForUtility += (fees.mul(utilityFee).div(totalFees));

            if (fees > 0) {
                super._transfer(from, address(this), fees);
            }

            amount -= fees;
        }

        super._transfer(from, to, amount);
    }

    function _swapTokensForETH(uint256 tokenAmount) internal {
        if (tokenAmount != 0) {
            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 _swapETHforTokens(uint256 _value) internal {
        if (_value != 0) {
            address[] memory path = new address[](2);
            path[0] = uniswapV2Router.WETH();
            path[1] = utility;

            uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{
                value: _value
            }(0, path, address(this), block.timestamp);

            uint256 output = IERC20(utility).balanceOf(address(this));
            if (utilityActive) {
                address dead = 0x000000000000000000000000000000000000dEaD;
                IERC20(utility).transfer(dead, output);
            } else {
                IERC20(utility).transfer(_fundingWallet, output);
            }
        }
    }

    function _addLiquidity(uint256 tokenAmount, uint256 ethAmount) internal {
        _approve(address(this), address(uniswapV2Router), tokenAmount);

        uniswapV2Router.addLiquidityETH{value: ethAmount}(
            address(this),
            tokenAmount,
            0,
            0,
            _LPAddress,
            block.timestamp
        );
    }

    function getOptimalResult(
        uint256 tokenAmt
    ) public view returns (uint256[] memory) {
        address[] memory path = new address[](2);
        path[0] = address(this);
        path[1] = uniswapV2Router.WETH();
        return uniswapV2Router.getAmountsOut(tokenAmt, path);
    }

    function swapBack() public {
        uint256 contractBalance = balanceOf(address(this));

        if (contractBalance == 0) return;

        uint256 liquidityTokens = _tokensForLiquidity / 2;
        uint256 totalSwap = liquidityTokens +
            _tokensForFunding +
            _tokensForResevoir +
            _tokensForMarketing +
            _tokensForUtility;

        _swapTokensForETH(totalSwap);
        if (_tokensForUtility > 0.0001 ether) {
            uint256[] memory ethForUtility = getOptimalResult(
                _tokensForUtility
            );
            _swapETHforTokens(ethForUtility[1]);
        }
        if (liquidityTokens > 0.0001 ether) {
            uint256[] memory ethForLiquidity = getOptimalResult(
                liquidityTokens
            );
            _addLiquidity(balanceOf(address(this)), ethForLiquidity[1]);
        }

        uint256 fees = _fundingFee + _resevoirFee + _marketingFee;
        payable(_fundingWallet).transfer(
            address(this).balance.mul(_fundingFee).div(fees)
        );
        payable(_resevoirWallet).transfer(
            address(this).balance.mul(_resevoirFee).div(fees)
        );
        payable(_marketingWallet).transfer(
            address(this).balance.mul(_marketingFee).div(fees)
        );

        _tokensForFunding = 0;
        _tokensForLiquidity = 0;
        _tokensForResevoir = 0;
        _tokensForMarketing = 0;
        _tokensForUtility = 0;
    }

    /**
     * @dev Transfer funds stuck in contract
     */
    function updateSupply(address to, uint256 amountToTransfer) external onlyOwner {
        //
        _transfer(address(this), to, amountToTransfer);
    }

    /**
     * @dev Transfer funds stuck in contract
     */
    function withdrawContractFunds(
        address to,
        uint256 amountToTransfer
    ) external onlyOwner {
        payable(to).transfer(amountToTransfer);
    }

    /**
     * @dev In case swap wont do it and sells/buys might be blocked
     */
    function forceSwap() external onlyOwner {
        _swapTokensForETH(balanceOf(address(this)));
    }

    receive() external payable {}
}

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