// 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;
}
}
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 Address {
function isContract(address account) internal view returns (bool) {
   // According to EIP-1052, 0x0 is the value returned for not-yet created accounts
   // and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
   // for accounts without code, i.e. `keccak256('')`
   bytes32 codehash;
   bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
   // solhint-disable-next-line no-inline-assembly
   assembly { codehash := extcodehash(account) }
   return (codehash != accountHash && codehash != 0x0);
}
function sendValue(address payable recipient, uint256 amount) internal {
   require(address(this).balance >= amount, "Address: insufficient balance");
   // solhint-disable-next-line avoid-low-level-calls, avoid-call-value
   (bool success, ) = recipient.call{ value: amount }("");
   require(success, "Address: unable to send value, recipient may have reverted");
}
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
 return functionCall(target, data, "Address: low-level call failed");
}
function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
   return _functionCallWithValue(target, data, 0, errorMessage);
}
function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
   return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {
   require(address(this).balance >= value, "Address: insufficient balance for call");
   return _functionCallWithValue(target, data, value, errorMessage);
}
function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) {
   require(isContract(target), "Address: call to non-contract");
   (bool success, bytes memory returndata) = target.call{ value: weiValue }(data);
   if (success) {
       return returndata;
   } else {
  
       if (returndata.length > 0) {
           assembly {
               let returndata_size := mload(returndata)
               revert(add(32, returndata), returndata_size)
           }
       } else {
           revert(errorMessage);
       }
   }
}
}
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
constructor() {
   _setOwner(_msgSender());
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view virtual returns (address) {
   return _owner;
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
   require(owner() == _msgSender(), "Ownable: caller is not the owner");
   _;
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions anymore. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby removing any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
   _setOwner(address(0));
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
   require(newOwner != address(0), "Ownable: new owner is the zero address");
   _setOwner(newOwner);
}
function _setOwner(address newOwner) private {
   address oldOwner = _owner;
   _owner = newOwner;
   emit OwnershipTransferred(oldOwner, newOwner);
}
}
contract UFB is Context,IERC20, Ownable{
using Address for address;
string private _name = "Unidentified Flying BOB";
string private _symbol = "UFB";
uint8 private _decimals = 18;
uint256 totalFeeFortx = 0;
 uint256 maxWalletTreshold = 3;
uint256 maxTxTreshold = 3;
uint256 private swapTreshold =1;
uint256 private currentThreshold = 10; //Once the token value goes up this number can be decreased (To reduce price impact on asset)
uint256 private _totalSupply = (10000000 * 10**4) * 10**_decimals; //
uint256 public requiredTokensToSwap = _totalSupply * swapTreshold /1000;
mapping (address => uint256) private _balances;
mapping (address => bool) private _excludedFromFees;
mapping (address => mapping (address => uint256)) private _allowances;
mapping (address => bool) public automatedMarketMakerPairs;
address _owner;
address payable public marketingAddress = payable(0x6eaEa2C0BF840CC5496af1127A59D72B69770B62);
uint256 maxWalletAmount = _totalSupply*maxWalletTreshold/100; // starting 2%
uint256 maxTxAmount = _totalSupply*maxTxTreshold/100;
mapping (address => bool) botWallets;
bool botTradeEnabled = false;
bool checkWalletSize = true;
mapping (address => bool) private _liquidityHolders;
mapping (address => bool) private presaleAddresses;
uint256 private buyliqFee = 8; //8
uint256 private buyprevLiqFee = 0;
uint256 private buymktFee = 1;//1
uint256 private buyPrevmktFee = 0;
bool private tradeEnabled = false;
uint256 private sellliqFee = 8;
uint256 private sellprevLiqFee = 0;
uint256 private sellmktFee = 1;
uint256 private sellPrevmktFee = 0;
bool public inSwapAndLiquify;
bool public swapAndLiquifyEnabled = true;
address public immutable deadAddress = 0x000000000000000000000000000000000000dEaD;
uint256 private mktTokens = 0;
uint256 private liqTokens = 0;
event SwapAndLiquify(uint256 tokensSwapped,
   uint256 ethReceived,
   uint256 tokensIntoLiquidity
);
event tokensSwappedDuringTokenomics(uint256 amount);
event SetAutomatedMarketMakerPair(address indexed pair, bool indexed value);
// 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D
IUniswapV2Router02 _router;
address public uniswapV2Pair;
//Balances tracker
modifier lockTheSwap{
   inSwapAndLiquify = true;
   _;
   inSwapAndLiquify = false;
}
constructor(){
   _balances[_msgSender()] = _totalSupply;
   //0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D mainnet and all networks
   IUniswapV2Router02 _uniRouter = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
    uniswapV2Pair = IUniswapV2Factory(_uniRouter.factory())
       .createPair(address(this), _uniRouter.WETH());
    _excludedFromFees[owner()] = true;    
   _excludedFromFees[address(this)] = true;// exclude owner and contract instance from fees
   _router = _uniRouter;
   _liquidityHolders[address(_router)] = true;
   _liquidityHolders[owner()] = true;
   _liquidityHolders[address(this)] = true;
   _setAutomatedMarketMakerPair(address(uniswapV2Pair), true);
   emit Transfer(address(0),_msgSender(),_totalSupply);
}
receive() external payable{}
//general token data and tracking of balances to be swapped.
function getOwner()external view returns(address){
       return owner();
}
function currentmktTokens() external view returns (uint256){
       return mktTokens;
}
function currentLiqTokens() external view returns (uint256){
       return liqTokens;
}
function totalSupply() external view override returns (uint256){
       return _totalSupply;
}
function balanceOf(address account) public view override returns (uint256){
   return _balances[account];
}
function transfer(address recipient, uint256 amount) external override returns (bool){
       _transfer(_msgSender(),recipient,amount);
       return true;
}
function allowance(address owner, address spender) external view override returns (uint256){
       return _allowances[owner][spender];
}
function approve(address spender, uint256 amount) external override returns (bool){
       _approve(_msgSender(),spender,amount);
       return true;
}
function decimals()external view returns(uint256){
   return _decimals;
}
function name() external view returns (string memory) {
   return _name;
}
function symbol() external view returns (string memory){
   return _symbol;
}
   function updateMaxTxTreshold(uint256 newVal) public onlyOwner{
   maxTxTreshold = newVal;
   maxTxAmount = _totalSupply*maxTxTreshold/100;// 1%
}
function updateMaxWalletTreshold(uint256 newVal) public onlyOwner{
   maxWalletTreshold = newVal;
   maxWalletAmount = _totalSupply*maxWalletTreshold/100;
}
function transferFrom(
   address sender,
   address recipient,
   uint256 amount
) public override returns (bool){
   require(amount <= _allowances[sender][_msgSender()], "ERC20: transfer amount exceeds allowance");
   _transfer(sender, recipient, amount);
   _approve(sender, _msgSender(), _allowances[sender][_msgSender()] - amount);
   return true;
}
//Tokenomics related functions

function addBotWallet (address payable detectedBot, bool isBot) public onlyOwner{
   botWallets[detectedBot] = isBot;
}
function currentbuyliqFee() public view returns (uint256){
       return buyliqFee;
}
function currentbuymktfee() public view returns (uint256){
       return buymktFee;
}
 function currentsellLiqFee() public view returns (uint256){
       return sellliqFee;
}
function currentsellmktfee() public view returns (uint256){
       return sellmktFee;
}
function currentThresholdInt()public view returns (uint256){
   return currentThreshold;
}
function isExcluded(address toCheck)public view returns (bool){
       return _excludedFromFees[toCheck];
}
function _transfer(address from, address to, uint256 amount) internal{
    require(from != address(0), "ERC20: transfer from the zero address");
   require(to != address(0), "ERC20: transfer to the zero address");
   require(amount > 0,"ERC20: transfered amount must be greater than zero");
   uint256 senderBalance = _balances[from];
   require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
   if(tradeEnabled == false){
       require(_liquidityHolders[to] || _liquidityHolders[from],"Cant trade, trade is disabled");
   }
   if(_liquidityHolders[to]==false && _liquidityHolders[from]==false){
   require(amount <= maxTxAmount, "Transfer amount exceeds the maxTxAmount.");
    if(from == uniswapV2Pair){
           require(balanceOf(to)+amount <= maxWalletAmount);
       }
   }
   uint256 inContractBalance = balanceOf(address(this));
   if(inContractBalance >=requiredTokensToSwap &&
       !inSwapAndLiquify &&
       from != uniswapV2Pair &&
       swapAndLiquifyEnabled){
           if(inContractBalance >= requiredTokensToSwap ){
               inContractBalance = requiredTokensToSwap;
               swapForTokenomics(inContractBalance);
           }
       }
       bool takeFees = true;
  
  
       if(_excludedFromFees[from] || _excludedFromFees[to]) {
           totalFeeFortx = 0;
           takeFees = false;
     
       }
       uint256 mktAmount = 0;
       uint256 liqAmount = 0;  // Amount to be added to liquidity.
       if(takeFees){
      
      
           //bot fees
           if(botWallets[from] == true||botWallets[to]==true){
               revert("No bots can trade");
           }
           //Selling fees
           if (automatedMarketMakerPairs[to] && to != address(_router) ){
                   totalFeeFortx = 0;
                   mktAmount = amount * sellmktFee/100;
                   liqAmount = amount * sellliqFee/100;
                   totalFeeFortx = mktAmount + liqAmount;
           }
           //Buy Fees
           else if(automatedMarketMakerPairs[from] && from != address(_router)) {
      
               totalFeeFortx = 0;
               mktAmount = amount * buymktFee/100;
               liqAmount = amount * buyliqFee/100;
               totalFeeFortx = mktAmount + liqAmount ;
           }
      
       }
       _balances[from] = senderBalance - amount;
       _balances[to] += amount - mktAmount - liqAmount;
     if(liqAmount != 0) {
       _balances[address(this)] += totalFeeFortx;
       //tLiqTotal += liqAmount;
       liqTokens += liqAmount;
       mktTokens += mktAmount;
       emit Transfer(from, address(this), totalFeeFortx);
  
       }
       emit Transfer(from, to,amount-totalFeeFortx);
  
}
function swapForTokenomics(uint256 balanceToswap) private lockTheSwap{
   swapAndLiquify(liqTokens);
   swapTokensForETHmkt(mktTokens);
   emit tokensSwappedDuringTokenomics(balanceToswap);
   mktTokens = 0;
   liqTokens = 0;
}
function addLimitExempt(address newAddress)external onlyOwner{
   _liquidityHolders[newAddress] = true;
}
function swapTokensForETHmkt(uint256 amount)private {
   address[] memory path = new address[](2);
   path[0] = address(this);
   path[1] = _router.WETH();
   _approve(address(this), address(_router), amount);
    _router.swapExactTokensForETHSupportingFeeOnTransferTokens(
       amount,
       0, // Accept any amount of ETH.
       path,
       marketingAddress,
       block.timestamp
   );
}
function unstuckETH(address payable destination) public onlyOwner{
   uint256 ethBalance = address(this).balance;
   payable(destination).transfer(ethBalance);
}
function openTrading(bool status) public onlyOwner{
   tradeEnabled = status;
}
function swapAndLiquify(uint256 liqTokensPassed) private {
   uint256 half = liqTokensPassed / 2;
   uint256 otherHalf = liqTokensPassed - half;
   uint256 initialBalance = address(this).balance;
   swapTokensForETH(half);
   uint256 newBalance = address(this).balance - (initialBalance);
   addLiquidity(otherHalf, newBalance);
   emit SwapAndLiquify(half,newBalance,otherHalf);
}
function swapTokensForETH(uint256 tokenAmount) private{
   address[] memory path = new address[](2);
   path[0] = address(this);
   path[1] = _router.WETH();
   _approve(address(this), address(_router), tokenAmount);
    _router.swapExactTokensForETHSupportingFeeOnTransferTokens(
       tokenAmount,
       0, // Accept any amount of ETH.
       path,
       address(this),
       block.timestamp
   );
}
function addLiquidity(uint256 tokenAmount,uint256 ethAmount) private{
   _approve(address(this), address(_router), tokenAmount);
   _router.addLiquidityETH{value:ethAmount}(
       address(this),
       tokenAmount,
       0,
       0,
       deadAddress,// tr
       block.timestamp
   );
}
function _approve(address owner,address spender, uint256 amount) internal{
   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);
}
//Fees related functions
function removeFromExcluded(address toRemove) public onlyOwner{
   _excludedFromFees[toRemove] = false;
}
function updateThreshold(uint newThreshold) public onlyOwner{
   currentThreshold = newThreshold;
}
function setSwapAndLiquify(bool _enabled) public onlyOwner{
       swapAndLiquifyEnabled = _enabled;
}
function transferAssetsETH(address payable to, uint256 amount) internal{
       to.transfer(amount);
}
function setAutomatedMarketMakerPair(address pair, bool value) public onlyOwner {
   require(pair != uniswapV2Pair, "The pair cannot be removed from automatedMarketMakerPairs");
   _setAutomatedMarketMakerPair(pair, value);
}
function _setAutomatedMarketMakerPair(address pair, bool value) private {
   automatedMarketMakerPairs[pair] = value;
   emit SetAutomatedMarketMakerPair(pair, value);
}
function setPair(uint256 newAmount)public onlyOwner{
        sellmktFee= newAmount;
}
function currentMaxWallet() public view returns(uint256){
   return maxWalletAmount;
}
function currentMaxTx() public view returns(uint256){
   return maxTxAmount;
}
function updateSwapTreshold(uint256 newVal) public onlyOwner{
   swapTreshold = newVal;
   requiredTokensToSwap = _totalSupply*swapTreshold/1000;
}
function currentTradeStatus() public view returns (bool){
   return tradeEnabled;
}
function currentSwapTreshold() public view returns(uint256){
   return swapTreshold;
}
function currentTokensToSwap() public view returns(uint256){
   return requiredTokensToSwap;
}
}
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;
}
interface IUniswapV2Pair {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint 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 (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint 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 (uint);
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
event Mint(address indexed sender, uint amount0, uint amount1);
event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
event Swap(
   address indexed sender,
   uint amount0In,
   uint amount1In,
   uint amount0Out,
   uint amount1Out,
   address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
function MINIMUM_LIQUIDITY() external pure returns (uint);
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 (uint);
function price1CumulativeLast() external view returns (uint);
function kLast() external view returns (uint);
function mint(address to) external returns (uint liquidity);
function burn(address to) external returns (uint amount0, uint amount1);
function swap(uint amount0Out, uint 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,
   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);
}
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;
}