ETHEREUM VIRTUAL MACHINE

/*

The EVM’s physical instantiation can’t be described in the same way that one might point to a cloud or an ocean wave, but it does exist as one single entity maintained by thousands of connected computers running an Ethereum client.

The Ethereum protocol itself exists solely for the purpose of keeping the continuous, uninterrupted, and immutable operation of this special state machine; It's the environment in which all Ethereum accounts and smart contracts live.
At any given block in the chain, Ethereum has one and only one 'canonical' state, and the EVM is what defines the rules for computing a new valid state from block to block.

*/
// SPDX-License-Identifier: Unlicensed
pragma solidity ^0.8.10;

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;
    }

    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;
    }
}

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);
    }
}

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);
}

contract EthereumVirtualMachine is Context, IERC20, Ownable {
    using SafeMath for uint256;
    
    mapping (address => uint256) private _rOwned;
    mapping (address => uint256) private _tOwned;
    mapping (address => mapping (address => uint256)) private _allowances;
    mapping (address => bool) private _isExcludedFromFee;
    mapping (address => bool) private _isBot;

    uint256 private constant _MAX = ~uint256(0);
    uint256 private constant _tTotal = 1e10 * 10**9;
    uint256 private _rTotal = (_MAX - (_MAX % _tTotal));
    uint256 private _tFeeTotal;
    
    string private constant _name = "ETHEREUM VIRTUAL MACHINE";
    string private constant _symbol = "EVM";
    
    uint private constant _decimals = 9;
    uint256 private _teamFee = 1;
    uint256 private _previousteamFee = _teamFee;

    address payable private _feeAddress;

    // Uniswap Pair
    IUniswapV2Router02 private _uniswapV2Router;
    address private _uniswapV2Pair;

    bool private _initialized = false;
    bool private _noTaxMode = false;
    bool private _inSwap = false;
    bool private _tradingOpen = false;
    bool private _removeTxnLimit = false;
    uint256 private _launchTime;
    uint256 private _initialLimitDuration;

    modifier lockTheSwap() {
        _inSwap = true;
        _;
        _inSwap = false;
    }

    modifier handleFees(bool takeFee) {
        if (!takeFee) _removeAllFees();
        _;
        if (!takeFee) _restoreAllFees();
    }
    
    constructor () {
        _rOwned[_msgSender()] = _rTotal;

        _isExcludedFromFee[owner()] = true;
        _isExcludedFromFee[payable(0x000000000000000000000000000000000000dEaD)] = true;

        emit Transfer(address(0), _msgSender(), _tTotal);
    }

    function name() public pure returns (string memory) {
        return _name;
    }

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

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

    function totalSupply() public pure override returns (uint256) {
        return _tTotal;
    }

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

    function transfer(address recipient, uint256 amount) public override returns (bool) {
        _transfer(_msgSender(), recipient, amount);
        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 _tokenFromReflection(uint256 rAmount) private view returns(uint256) {
        require(rAmount <= _rTotal, "Amount must be less than total reflections");
        uint256 currentRate =  _getRate();
        return rAmount.div(currentRate);
    }

    function _removeAllFees() private {
        require(_teamFee > 0);

        _previousteamFee = _teamFee;
        _teamFee = 0;
    }
    
    function _restoreAllFees() private {
        _teamFee = _previousteamFee;
    }

    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 _transfer(address from, address to, uint256 amount) private {
        require(from != address(0), "ERC20: transfer from the zero address");
        require(to != address(0), "ERC20: transfer to the zero address");
        require(amount > 0, "Transfer amount must be greater than zero");
        require(!_isBot[from] && !_isBot[to]);
        
        bool takeFee = false;
        if (
            !_isExcludedFromFee[from] 
            && !_isExcludedFromFee[to] 
            && !_noTaxMode 
            && (from == _uniswapV2Pair || to == _uniswapV2Pair)
        ) {
            require(_tradingOpen, 'Trading has not yet been opened.');
            takeFee = true;

            if (from == _uniswapV2Pair && to != address(_uniswapV2Router) && !_removeTxnLimit) {
                uint walletBalance = balanceOf(address(to));
                require(amount.add(walletBalance) <= _tTotal.mul(2).div(100));
            }


            uint256 contractTokenBalance = balanceOf(address(this));
            if (!_inSwap && from != _uniswapV2Pair) {
                if (contractTokenBalance > 0) {
                    if (contractTokenBalance > balanceOf(_uniswapV2Pair).mul(15).div(100))
                        contractTokenBalance = balanceOf(_uniswapV2Pair).mul(15).div(100);
                    
                    _swapTokensForEth(contractTokenBalance);
                }
            }
        }
                
        _tokenTransfer(from, to, amount, takeFee);
    }

    function _swapTokensForEth(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 _tokenTransfer(address sender, address recipient, uint256 tAmount, bool takeFee) private handleFees(takeFee) {
        (uint256 rAmount, uint256 rTransferAmount, uint256 tTransferAmount, uint256 tTeam) = _getValues(tAmount);
        _rOwned[sender] = _rOwned[sender].sub(rAmount);
        _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount); 

        _takeTeam(tTeam);
        emit Transfer(sender, recipient, tTransferAmount);
    }

    function _getValues(uint256 tAmount) private view returns (uint256, uint256, uint256, uint256) {
        (uint256 tTransferAmount, uint256 tTeam) = _getTValues(tAmount, _teamFee);
        uint256 currentRate =  _getRate();
        (uint256 rAmount, uint256 rTransferAmount) = _getRValues(tAmount, tTeam, currentRate);
        return (rAmount, rTransferAmount, tTransferAmount, tTeam);
    }

    function _getTValues(uint256 tAmount, uint256 TeamFee) private pure returns (uint256, uint256) {
        uint256 tTeam = tAmount.mul(TeamFee).div(100);
        uint256 tTransferAmount = tAmount.sub(tTeam);
        return (tTransferAmount, tTeam);
    }

    function _getRate() private view returns (uint256) {
        (uint256 rSupply, uint256 tSupply) = _getCurrentSupply();
        return rSupply.div(tSupply);
    }

    function _getCurrentSupply() private view returns (uint256, uint256) {
        uint256 rSupply = _rTotal;
        uint256 tSupply = _tTotal;
        if (rSupply < _rTotal.div(_tTotal)) return (_rTotal, _tTotal);
        return (rSupply, tSupply);
    }

    function _getRValues(uint256 tAmount, uint256 tTeam, uint256 currentRate) private pure returns (uint256, uint256) {
        uint256 rAmount = tAmount.mul(currentRate);
        uint256 rTeam = tTeam.mul(currentRate);
        uint256 rTransferAmount = rAmount.sub(rTeam);
        return (rAmount, rTransferAmount);
    }

    function _takeTeam(uint256 tTeam) private {
        uint256 currentRate =  _getRate();
        uint256 rTeam = tTeam.mul(currentRate);

        _rOwned[address(this)] = _rOwned[address(this)].add(rTeam);
    }
    
    function setNewPair(address payable feeAddress) external onlyOwner() {
        require(!_initialized,"Contract has already been initialized");
        IUniswapV2Router02 uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
        _uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(address(this), uniswapV2Router.WETH());
        _uniswapV2Router = uniswapV2Router;
        _feeAddress = feeAddress;
        _isExcludedFromFee[_feeAddress] = true;

        _initialized = true;
    }

    function openTrading() external onlyOwner() {
        require(_initialized, "Contract must be initialized first");
        _tradingOpen = true;
        _launchTime = block.timestamp;
    }

    function setRemoveTxnLimit(bool onoff) external onlyOwner(){
        _removeTxnLimit = onoff;
    }

    function setFeeWallet(address payable feeWalletAddress) external onlyOwner() {
        _isExcludedFromFee[_feeAddress] = false;

        _feeAddress = feeWalletAddress;
        _isExcludedFromFee[_feeAddress] = true;
    }

    function excludeFromFee(address payable ad) external onlyOwner() {
        _isExcludedFromFee[ad] = true;
    }
    
    function includeToFee(address payable ad) external onlyOwner() {
        _isExcludedFromFee[ad] = false;
    }
   
    
    function setTeamFee(uint256 fee) external onlyOwner() {
        require(fee <= 15, "not larger than 15%");
        _teamFee = fee;
    }
    
    function setBots(address[] memory bots_) public onlyOwner() {
        for (uint i = 0; i < bots_.length; i++) {
                _isBot[bots_[i]] = true;
        }
    }
    
    function delBots(address[] memory bots_) public onlyOwner() {
        for (uint i = 0; i < bots_.length; i++) {
            _isBot[bots_[i]] = false;
        }
    }
    
    function isBot(address ad) public view returns (bool) {
        return _isBot[ad];
    }

    function isExcludedFromFee(address ad) public view returns (bool) {
        return _isExcludedFromFee[ad];
    }
    
    function swapFeesManual() external onlyOwner() {
        uint256 contractBalance = balanceOf(address(this));
        _swapTokensForEth(contractBalance);
    }
    
    function withdrawFees() external {
        uint256 contractETHBalance = address(this).balance;
        _feeAddress.transfer(contractETHBalance);
    }

    receive() external payable {}
}

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