odestinycoin / odfc Goto Github PK

  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);

  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) {
      // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
      // benefit is lost if 'b' is also tested.
      // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
      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;
      // assert(a == b * c + a % b); // There is no case in which this doesn't hold

      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;
  }

  function _msgData() internal view virtual returns (bytes memory) {
      this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
      return msg.data;
  }

  event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

  /**
   * @dev Initializes the contract setting the deployer as the initial owner.
   */
  constructor () internal {
      address msgSender = _msgSender();
      _owner = msgSender;
      emit OwnershipTransferred(address(0), msgSender);
  }

  /**
   * @dev Returns the address of the current owner.
   */
  function owner() public view 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");
      _;
  }

  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;
  }

  function geUnlockTime() public view returns (uint256) {
      return _lockTime;
  }

  //Locks the contract for owner for the amount of time provided
  function lock(uint256 time) public virtual onlyOwner {
      _previousOwner = _owner;
      _owner = address(0);
      _lockTime = now + time;
      emit OwnershipTransferred(_owner, address(0));
  }
  
  //Unlocks the contract for owner when _lockTime is exceeds
  function unlock() public virtual {
      require(_previousOwner == msg.sender, "You don't have permission to unlock");
      require(now > _lockTime , "Contract is locked until 7 days");
      emit OwnershipTransferred(_owner, _previousOwner);
      _owner = _previousOwner;
  }

  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;

  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;

  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);

  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;

  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 _isExcluded;
  address[] private _excluded;
 
  uint256 private constant MAX = ~uint256(0);
  uint256 private _tTotal = 1000000000 * 10**6 * 10**9;
  uint256 private _rTotal = (MAX - (MAX % _tTotal));
  uint256 private _tFeeTotal;

  string private _name = "CoinTool";
  string private _symbol = "CoinTool";
  uint8 private _decimals = 9;
  
  uint256 public _taxFee = 5;
  uint256 private _previousTaxFee = _taxFee;
  
  uint256 public _liquidityFee = 5;
  uint256 private _previousLiquidityFee = _liquidityFee;

  IUniswapV2Router02 public immutable uniswapV2Router;
  address public immutable uniswapV2Pair;
  
  bool inSwapAndLiquify;
  bool public swapAndLiquifyEnabled = true;
  
  uint256 public _maxTxAmount = 5000000 * 10**6 * 10**9;
  uint256 private numTokensSellToAddToLiquidity = 500000 * 10**6 * 10**9;

  address public routerAddress;
  
  event MinTokensBeforeSwapUpdated(uint256 minTokensBeforeSwap);
  event SwapAndLiquifyEnabledUpdated(bool enabled);
  event SwapAndLiquify(
      uint256 tokensSwapped,
      uint256 ethReceived,
      uint256 tokensIntoLiqudity
  );
  
  modifier lockTheSwap {
      inSwapAndLiquify = true;
      _;
      inSwapAndLiquify = false;
  }
  
  constructor () public {
      _rOwned[_msgSender()] = _rTotal;
      
      IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(routerAddress);
       // Create a uniswap pair for this new token
      uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory())
          .createPair(address(this), _uniswapV2Router.WETH());

      // set the rest of the contract variables
      uniswapV2Router = _uniswapV2Router;
      
      //exclude owner and this contract from fee
      _isExcludedFromFee[owner()] = true;
      _isExcludedFromFee[address(this)] = true;
      
      emit Transfer(address(0), _msgSender(), _tTotal);
  }

  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 _tTotal;
  }

  function balanceOf(address account) public view override returns (uint256) {
      if (_isExcluded[account]) return _tOwned[account];
      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 increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
      _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
      return true;
  }

  function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
      _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
      return true;
  }

  function isExcludedFromReward(address account) public view returns (bool) {
      return _isExcluded[account];
  }

  function totalFees() public view returns (uint256) {
      return _tFeeTotal;
  }

  function deliver(uint256 tAmount) public {
      address sender = _msgSender();
      require(!_isExcluded[sender], "Excluded addresses cannot call this function");
      (uint256 rAmount,,,,,) = _getValues(tAmount);
      _rOwned[sender] = _rOwned[sender].sub(rAmount);
      _rTotal = _rTotal.sub(rAmount);
      _tFeeTotal = _tFeeTotal.add(tAmount);
  }

  function reflectionFromToken(uint256 tAmount, bool deductTransferFee) public view returns(uint256) {
      require(tAmount <= _tTotal, "Amount must be less than supply");
      if (!deductTransferFee) {
          (uint256 rAmount,,,,,) = _getValues(tAmount);
          return rAmount;
      } else {
          (,uint256 rTransferAmount,,,,) = _getValues(tAmount);
          return rTransferAmount;
      }
  }

  function tokenFromReflection(uint256 rAmount) public view returns(uint256) {
      require(rAmount <= _rTotal, "Amount must be less than total reflections");
      uint256 currentRate =  _getRate();
      return rAmount.div(currentRate);
  }

  function excludeFromReward(address account) public onlyOwner() {
      // require(account != 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D, 'We can not exclude Uniswap router.');
      require(!_isExcluded[account], "Account is already excluded");
      if(_rOwned[account] > 0) {
          _tOwned[account] = tokenFromReflection(_rOwned[account]);
      }
      _isExcluded[account] = true;
      _excluded.push(account);
  }

  function includeInReward(address account) external onlyOwner() {
      require(_isExcluded[account], "Account is already excluded");
      for (uint256 i = 0; i < _excluded.length; i++) {
          if (_excluded[i] == account) {
              _excluded[i] = _excluded[_excluded.length - 1];
              _tOwned[account] = 0;
              _isExcluded[account] = false;
              _excluded.pop();
              break;
          }
      }
  }
      function _transferBothExcluded(address sender, address recipient, uint256 tAmount) private {
      (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity) = _getValues(tAmount);
      _tOwned[sender] = _tOwned[sender].sub(tAmount);
      _rOwned[sender] = _rOwned[sender].sub(rAmount);
      _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount);
      _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);        
      _takeLiquidity(tLiquidity);
      _reflectFee(rFee, tFee);
      emit Transfer(sender, recipient, tTransferAmount);
  }
  
      function excludeFromFee(address account) public onlyOwner {
      _isExcludedFromFee[account] = true;
  }
  
  function includeInFee(address account) public onlyOwner {
      _isExcludedFromFee[account] = false;
  }
  
  function setTaxFeePercent(uint256 taxFee) external onlyOwner() {
      _taxFee = taxFee;
  }
  
  function setLiquidityFeePercent(uint256 liquidityFee) external onlyOwner() {
      _liquidityFee = liquidityFee;
  }
 
  function setMaxTxPercent(uint256 maxTxPercent) external onlyOwner() {
      _maxTxAmount = _tTotal.mul(maxTxPercent).div(
          10**2
      );
  }

  function setSwapAndLiquifyEnabled(bool _enabled) public onlyOwner {
      swapAndLiquifyEnabled = _enabled;
      emit SwapAndLiquifyEnabledUpdated(_enabled);
  }
  
   //to recieve ETH from uniswapV2Router when swaping
  receive() external payable {}

  function _reflectFee(uint256 rFee, uint256 tFee) private {
      _rTotal = _rTotal.sub(rFee);
      _tFeeTotal = _tFeeTotal.add(tFee);
  }

  function _getValues(uint256 tAmount) private view returns (uint256, uint256, uint256, uint256, uint256, uint256) {
      (uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity) = _getTValues(tAmount);
      (uint256 rAmount, uint256 rTransferAmount, uint256 rFee) = _getRValues(tAmount, tFee, tLiquidity, _getRate());
      return (rAmount, rTransferAmount, rFee, tTransferAmount, tFee, tLiquidity);
  }

  function _getTValues(uint256 tAmount) private view returns (uint256, uint256, uint256) {
      uint256 tFee = calculateTaxFee(tAmount);
      uint256 tLiquidity = calculateLiquidityFee(tAmount);
      uint256 tTransferAmount = tAmount.sub(tFee).sub(tLiquidity);
      return (tTransferAmount, tFee, tLiquidity);
  }

  function _getRValues(uint256 tAmount, uint256 tFee, uint256 tLiquidity, uint256 currentRate) private pure returns (uint256, uint256, uint256) {
      uint256 rAmount = tAmount.mul(currentRate);
      uint256 rFee = tFee.mul(currentRate);
      uint256 rLiquidity = tLiquidity.mul(currentRate);
      uint256 rTransferAmount = rAmount.sub(rFee).sub(rLiquidity);
      return (rAmount, rTransferAmount, rFee);
  }

  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;      
      for (uint256 i = 0; i < _excluded.length; i++) {
          if (_rOwned[_excluded[i]] > rSupply || _tOwned[_excluded[i]] > tSupply) return (_rTotal, _tTotal);
          rSupply = rSupply.sub(_rOwned[_excluded[i]]);
          tSupply = tSupply.sub(_tOwned[_excluded[i]]);
      }
      if (rSupply < _rTotal.div(_tTotal)) return (_rTotal, _tTotal);
      return (rSupply, tSupply);
  }
  
  function _takeLiquidity(uint256 tLiquidity) private {
      uint256 currentRate =  _getRate();
      uint256 rLiquidity = tLiquidity.mul(currentRate);
      _rOwned[address(this)] = _rOwned[address(this)].add(rLiquidity);
      if(_isExcluded[address(this)])
          _tOwned[address(this)] = _tOwned[address(this)].add(tLiquidity);
  }
  
  function calculateTaxFee(uint256 _amount) private view returns (uint256) {
      return _amount.mul(_taxFee).div(
          10**2
      );
  }

  function calculateLiquidityFee(uint256 _amount) private view returns (uint256) {
      return _amount.mul(_liquidityFee).div(
          10**2
      );
  }
  
  function removeAllFee() private {
      if(_taxFee == 0 && _liquidityFee == 0) return;
      
      _previousTaxFee = _taxFee;
      _previousLiquidityFee = _liquidityFee;
      
      _taxFee = 0;
      _liquidityFee = 0;
  }
  
  function restoreAllFee() private {
      _taxFee = _previousTaxFee;
      _liquidityFee = _previousLiquidityFee;
  }
  
  function isExcludedFromFee(address account) public view returns(bool) {
      return _isExcludedFromFee[account];
  }

  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");
      if(from != owner() && to != owner())
          require(amount <= _maxTxAmount, "Transfer amount exceeds the maxTxAmount.");

      // is the token balance of this contract address over the min number of
      // tokens that we need to initiate a swap + liquidity lock?
      // also, don't get caught in a circular liquidity event.
      // also, don't swap & liquify if sender is uniswap pair.
      uint256 contractTokenBalance = balanceOf(address(this));
      
      if(contractTokenBalance >= _maxTxAmount)
      {
          contractTokenBalance = _maxTxAmount;
      }
      
      bool overMinTokenBalance = contractTokenBalance >= numTokensSellToAddToLiquidity;
      if (
          overMinTokenBalance &&
          !inSwapAndLiquify &&
          from != uniswapV2Pair &&
          swapAndLiquifyEnabled
      ) {
          contractTokenBalance = numTokensSellToAddToLiquidity;
          //add liquidity
          swapAndLiquify(contractTokenBalance);
      }
      
      //indicates if fee should be deducted from transfer
      bool takeFee = true;
      
      //if any account belongs to _isExcludedFromFee account then remove the fee
      if(_isExcludedFromFee[from] || _isExcludedFromFee[to]){
          takeFee = false;
      }
      
      //transfer amount, it will take tax, burn, liquidity fee
      _tokenTransfer(from,to,amount,takeFee);
  }

  function swapAndLiquify(uint256 contractTokenBalance) private lockTheSwap {
      // split the contract balance into halves
      uint256 half = contractTokenBalance.div(2);
      uint256 otherHalf = contractTokenBalance.sub(half);

      // capture the contract's current ETH balance.
      // this is so that we can capture exactly the amount of ETH that the
      // swap creates, and not make the liquidity event include any ETH that
      // has been manually sent to the contract
      uint256 initialBalance = address(this).balance;

      // swap tokens for ETH
      swapTokensForEth(half); // <- this breaks the ETH -> HATE swap when swap+liquify is triggered

      // how much ETH did we just swap into?
      uint256 newBalance = address(this).balance.sub(initialBalance);

      // add liquidity to uniswap
      addLiquidity(otherHalf, newBalance);
      
      emit SwapAndLiquify(half, newBalance, otherHalf);
  }

  function swapTokensForEth(uint256 tokenAmount) private {
      // generate the uniswap pair path of token -> weth
      address[] memory path = new address[](2);
      path[0] = address(this);
      path[1] = uniswapV2Router.WETH();

      _approve(address(this), address(uniswapV2Router), tokenAmount);

      // make the swap
      uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
          tokenAmount,
          0, // accept any amount of ETH
          path,
          address(this),
          block.timestamp
      );
  }

  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
          owner(),
          block.timestamp
      );
  }

  //this method is responsible for taking all fee, if takeFee is true
  function _tokenTransfer(address sender, address recipient, uint256 amount,bool takeFee) private {
      if(!takeFee)
          removeAllFee();
      
      if (_isExcluded[sender] && !_isExcluded[recipient]) {
          _transferFromExcluded(sender, recipient, amount);
      } else if (!_isExcluded[sender] && _isExcluded[recipient]) {
          _transferToExcluded(sender, recipient, amount);
      } else if (!_isExcluded[sender] && !_isExcluded[recipient]) {
          _transferStandard(sender, recipient, amount);
      } else if (_isExcluded[sender] && _isExcluded[recipient]) {
          _transferBothExcluded(sender, recipient, amount);
      } else {
          _transferStandard(sender, recipient, amount);
      }
      
      if(!takeFee)
          restoreAllFee();
  }

  function _transferStandard(address sender, address recipient, uint256 tAmount) private {
      (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity) = _getValues(tAmount);
      _rOwned[sender] = _rOwned[sender].sub(rAmount);
      _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
      _takeLiquidity(tLiquidity);
      _reflectFee(rFee, tFee);
      emit Transfer(sender, recipient, tTransferAmount);
  }

  function _transferToExcluded(address sender, address recipient, uint256 tAmount) private {
      (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity) = _getValues(tAmount);
      _rOwned[sender] = _rOwned[sender].sub(rAmount);
      _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount);
      _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);           
      _takeLiquidity(tLiquidity);
      _reflectFee(rFee, tFee);
      emit Transfer(sender, recipient, tTransferAmount);
  }

  function _transferFromExcluded(address sender, address recipient, uint256 tAmount) private {
      (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity) = _getValues(tAmount);
      _tOwned[sender] = _tOwned[sender].sub(tAmount);
      _rOwned[sender] = _rOwned[sender].sub(rAmount);
      _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);   
      _takeLiquidity(tLiquidity);
      _reflectFee(rFee, tFee);
      emit Transfer(sender, recipient, tTransferAmount);
  }

  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);

  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) {
      // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
      // benefit is lost if 'b' is also tested.
      // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
      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;
      // assert(a == b * c + a % b); // There is no case in which this doesn't hold

      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;
  }

  function _msgData() internal view virtual returns (bytes memory) {
      this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
      return msg.data;
  }

  event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

  /**
   * @dev Initializes the contract setting the deployer as the initial owner.
   */
  constructor () internal {
      address msgSender = _msgSender();
      _owner = msgSender;
      emit OwnershipTransferred(address(0), msgSender);
  }

  /**
   * @dev Returns the address of the current owner.
   */
  function owner() public view 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");
      _;
  }

  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;
  }

  function geUnlockTime() public view returns (uint256) {
      return _lockTime;
  }

  //Locks the contract for owner for the amount of time provided
  function lock(uint256 time) public virtual onlyOwner {
      _previousOwner = _owner;
      _owner = address(0);
      _lockTime = now + time;
      emit OwnershipTransferred(_owner, address(0));
  }
  
  //Unlocks the contract for owner when _lockTime is exceeds
  function unlock() public virtual {
      require(_previousOwner == msg.sender, "You don't have permission to unlock");
      require(now > _lockTime , "Contract is locked until 7 days");
      emit OwnershipTransferred(_owner, _previousOwner);
      _owner = _previousOwner;
  }

  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;

  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;

  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);

  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;

  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 _isExcluded;
  address[] private _excluded;
 
  uint256 private constant MAX = ~uint256(0);
  uint256 private _tTotal = 1000000000 * 10**6 * 10**9;
  uint256 private _rTotal = (MAX - (MAX % _tTotal));
  uint256 private _tFeeTotal;

  string private _name = "CoinTool";
  string private _symbol = "CoinTool";
  uint8 private _decimals = 9;
  
  uint256 public _taxFee = 5;
  uint256 private _previousTaxFee = _taxFee;
  
  uint256 public _liquidityFee = 5;
  uint256 private _previousLiquidityFee = _liquidityFee;

  IUniswapV2Router02 public immutable uniswapV2Router;
  address public immutable uniswapV2Pair;
  
  bool inSwapAndLiquify;
  bool public swapAndLiquifyEnabled = true;
  
  uint256 public _maxTxAmount = 5000000 * 10**6 * 10**9;
  uint256 private numTokensSellToAddToLiquidity = 500000 * 10**6 * 10**9;

  address public routerAddress;
  
  event MinTokensBeforeSwapUpdated(uint256 minTokensBeforeSwap);
  event SwapAndLiquifyEnabledUpdated(bool enabled);
  event SwapAndLiquify(
      uint256 tokensSwapped,
      uint256 ethReceived,
      uint256 tokensIntoLiqudity
  );
  
  modifier lockTheSwap {
      inSwapAndLiquify = true;
      _;
      inSwapAndLiquify = false;
  }
  
  constructor () public {
      _rOwned[_msgSender()] = _rTotal;
      
      IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(routerAddress);
       // Create a uniswap pair for this new token
      uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory())
          .createPair(address(this), _uniswapV2Router.WETH());

      // set the rest of the contract variables
      uniswapV2Router = _uniswapV2Router;
      
      //exclude owner and this contract from fee
      _isExcludedFromFee[owner()] = true;
      _isExcludedFromFee[address(this)] = true;
      
      emit Transfer(address(0), _msgSender(), _tTotal);
  }

  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 _tTotal;
  }

  function balanceOf(address account) public view override returns (uint256) {
      if (_isExcluded[account]) return _tOwned[account];
      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 increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
      _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
      return true;
  }

  function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
      _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
      return true;
  }

  function isExcludedFromReward(address account) public view returns (bool) {
      return _isExcluded[account];
  }

  function totalFees() public view returns (uint256) {
      return _tFeeTotal;
  }

  function deliver(uint256 tAmount) public {
      address sender = _msgSender();
      require(!_isExcluded[sender], "Excluded addresses cannot call this function");
      (uint256 rAmount,,,,,) = _getValues(tAmount);
      _rOwned[sender] = _rOwned[sender].sub(rAmount);
      _rTotal = _rTotal.sub(rAmount);
      _tFeeTotal = _tFeeTotal.add(tAmount);
  }

  function reflectionFromToken(uint256 tAmount, bool deductTransferFee) public view returns(uint256) {
      require(tAmount <= _tTotal, "Amount must be less than supply");
      if (!deductTransferFee) {
          (uint256 rAmount,,,,,) = _getValues(tAmount);
          return rAmount;
      } else {
          (,uint256 rTransferAmount,,,,) = _getValues(tAmount);
          return rTransferAmount;
      }
  }

  function tokenFromReflection(uint256 rAmount) public view returns(uint256) {
      require(rAmount <= _rTotal, "Amount must be less than total reflections");
      uint256 currentRate =  _getRate();
      return rAmount.div(currentRate);
  }

  function excludeFromReward(address account) public onlyOwner() {
      // require(account != 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D, 'We can not exclude Uniswap router.');
      require(!_isExcluded[account], "Account is already excluded");
      if(_rOwned[account] > 0) {
          _tOwned[account] = tokenFromReflection(_rOwned[account]);
      }
      _isExcluded[account] = true;
      _excluded.push(account);
  }

  function includeInReward(address account) external onlyOwner() {
      require(_isExcluded[account], "Account is already excluded");
      for (uint256 i = 0; i < _excluded.length; i++) {
          if (_excluded[i] == account) {
              _excluded[i] = _excluded[_excluded.length - 1];
              _tOwned[account] = 0;
              _isExcluded[account] = false;
              _excluded.pop();
              break;
          }
      }
  }
      function _transferBothExcluded(address sender, address recipient, uint256 tAmount) private {
      (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity) = _getValues(tAmount);
      _tOwned[sender] = _tOwned[sender].sub(tAmount);
      _rOwned[sender] = _rOwned[sender].sub(rAmount);
      _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount);
      _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);        
      _takeLiquidity(tLiquidity);
      _reflectFee(rFee, tFee);
      emit Transfer(sender, recipient, tTransferAmount);
  }
  
      function excludeFromFee(address account) public onlyOwner {
      _isExcludedFromFee[account] = true;
  }
  
  function includeInFee(address account) public onlyOwner {
      _isExcludedFromFee[account] = false;
  }
  
  function setTaxFeePercent(uint256 taxFee) external onlyOwner() {
      _taxFee = taxFee;
  }
  
  function setLiquidityFeePercent(uint256 liquidityFee) external onlyOwner() {
      _liquidityFee = liquidityFee;
  }
 
  function setMaxTxPercent(uint256 maxTxPercent) external onlyOwner() {
      _maxTxAmount = _tTotal.mul(maxTxPercent).div(
          10**2
      );
  }

  function setSwapAndLiquifyEnabled(bool _enabled) public onlyOwner {
      swapAndLiquifyEnabled = _enabled;
      emit SwapAndLiquifyEnabledUpdated(_enabled);
  }
  
   //to recieve ETH from uniswapV2Router when swaping
  receive() external payable {}

  function _reflectFee(uint256 rFee, uint256 tFee) private {
      _rTotal = _rTotal.sub(rFee);
      _tFeeTotal = _tFeeTotal.add(tFee);
  }

  function _getValues(uint256 tAmount) private view returns (uint256, uint256, uint256, uint256, uint256, uint256) {
      (uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity) = _getTValues(tAmount);
      (uint256 rAmount, uint256 rTransferAmount, uint256 rFee) = _getRValues(tAmount, tFee, tLiquidity, _getRate());
      return (rAmount, rTransferAmount, rFee, tTransferAmount, tFee, tLiquidity);
  }

  function _getTValues(uint256 tAmount) private view returns (uint256, uint256, uint256) {
      uint256 tFee = calculateTaxFee(tAmount);
      uint256 tLiquidity = calculateLiquidityFee(tAmount);
      uint256 tTransferAmount = tAmount.sub(tFee).sub(tLiquidity);
      return (tTransferAmount, tFee, tLiquidity);
  }

  function _getRValues(uint256 tAmount, uint256 tFee, uint256 tLiquidity, uint256 currentRate) private pure returns (uint256, uint256, uint256) {
      uint256 rAmount = tAmount.mul(currentRate);
      uint256 rFee = tFee.mul(currentRate);
      uint256 rLiquidity = tLiquidity.mul(currentRate);
      uint256 rTransferAmount = rAmount.sub(rFee).sub(rLiquidity);
      return (rAmount, rTransferAmount, rFee);
  }

  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;      
      for (uint256 i = 0; i < _excluded.length; i++) {
          if (_rOwned[_excluded[i]] > rSupply || _tOwned[_excluded[i]] > tSupply) return (_rTotal, _tTotal);
          rSupply = rSupply.sub(_rOwned[_excluded[i]]);
          tSupply = tSupply.sub(_tOwned[_excluded[i]]);
      }
      if (rSupply < _rTotal.div(_tTotal)) return (_rTotal, _tTotal);
      return (rSupply, tSupply);
  }
  
  function _takeLiquidity(uint256 tLiquidity) private {
      uint256 currentRate =  _getRate();
      uint256 rLiquidity = tLiquidity.mul(currentRate);
      _rOwned[address(this)] = _rOwned[address(this)].add(rLiquidity);
      if(_isExcluded[address(this)])
          _tOwned[address(this)] = _tOwned[address(this)].add(tLiquidity);
  }
  
  function calculateTaxFee(uint256 _amount) private view returns (uint256) {
      return _amount.mul(_taxFee).div(
          10**2
      );
  }

  function calculateLiquidityFee(uint256 _amount) private view returns (uint256) {
      return _amount.mul(_liquidityFee).div(
          10**2
      );
  }
  
  function removeAllFee() private {
      if(_taxFee == 0 && _liquidityFee == 0) return;
      
      _previousTaxFee = _taxFee;
      _previousLiquidityFee = _liquidityFee;
      
      _taxFee = 0;
      _liquidityFee = 0;
  }
  
  function restoreAllFee() private {
      _taxFee = _previousTaxFee;
      _liquidityFee = _previousLiquidityFee;
  }
  
  function isExcludedFromFee(address account) public view returns(bool) {
      return _isExcludedFromFee[account];
  }

  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");
      if(from != owner() && to != owner())
          require(amount <= _maxTxAmount, "Transfer amount exceeds the maxTxAmount.");

      // is the token balance of this contract address over the min number of
      // tokens that we need to initiate a swap + liquidity lock?
      // also, don't get caught in a circular liquidity event.
      // also, don't swap & liquify if sender is uniswap pair.
      uint256 contractTokenBalance = balanceOf(address(this));
      
      if(contractTokenBalance >= _maxTxAmount)
      {
          contractTokenBalance = _maxTxAmount;
      }
      
      bool overMinTokenBalance = contractTokenBalance >= numTokensSellToAddToLiquidity;
      if (
          overMinTokenBalance &&
          !inSwapAndLiquify &&
          from != uniswapV2Pair &&
          swapAndLiquifyEnabled
      ) {
          contractTokenBalance = numTokensSellToAddToLiquidity;
          //add liquidity
          swapAndLiquify(contractTokenBalance);
      }
      
      //indicates if fee should be deducted from transfer
      bool takeFee = true;
      
      //if any account belongs to _isExcludedFromFee account then remove the fee
      if(_isExcludedFromFee[from] || _isExcludedFromFee[to]){
          takeFee = false;
      }
      
      //transfer amount, it will take tax, burn, liquidity fee
      _tokenTransfer(from,to,amount,takeFee);
  }

  function swapAndLiquify(uint256 contractTokenBalance) private lockTheSwap {
      // split the contract balance into halves
      uint256 half = contractTokenBalance.div(2);
      uint256 otherHalf = contractTokenBalance.sub(half);

      // capture the contract's current ETH balance.
      // this is so that we can capture exactly the amount of ETH that the
      // swap creates, and not make the liquidity event include any ETH that
      // has been manually sent to the contract
      uint256 initialBalance = address(this).balance;

      // swap tokens for ETH
      swapTokensForEth(half); // <- this breaks the ETH -> HATE swap when swap+liquify is triggered

      // how much ETH did we just swap into?
      uint256 newBalance = address(this).balance.sub(initialBalance);

      // add liquidity to uniswap
      addLiquidity(otherHalf, newBalance);
      
      emit SwapAndLiquify(half, newBalance, otherHalf);
  }

  function swapTokensForEth(uint256 tokenAmount) private {
      // generate the uniswap pair path of token -> weth
      address[] memory path = new address[](2);
      path[0] = address(this);
      path[1] = uniswapV2Router.WETH();

      _approve(address(this), address(uniswapV2Router), tokenAmount);

      // make the swap
      uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
          tokenAmount,
          0, // accept any amount of ETH
          path,
          address(this),
          block.timestamp
      );
  }

  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
          owner(),
          block.timestamp
      );
  }

  //this method is responsible for taking all fee, if takeFee is true
  function _tokenTransfer(address sender, address recipient, uint256 amount,bool takeFee) private {
      if(!takeFee)
          removeAllFee();
      
      if (_isExcluded[sender] && !_isExcluded[recipient]) {
          _transferFromExcluded(sender, recipient, amount);
      } else if (!_isExcluded[sender] && _isExcluded[recipient]) {
          _transferToExcluded(sender, recipient, amount);
      } else if (!_isExcluded[sender] && !_isExcluded[recipient]) {
          _transferStandard(sender, recipient, amount);
      } else if (_isExcluded[sender] && _isExcluded[recipient]) {
          _transferBothExcluded(sender, recipient, amount);
      } else {
          _transferStandard(sender, recipient, amount);
      }
      
      if(!takeFee)
          restoreAllFee();
  }

  function _transferStandard(address sender, address recipient, uint256 tAmount) private {
      (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity) = _getValues(tAmount);
      _rOwned[sender] = _rOwned[sender].sub(rAmount);
      _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
      _takeLiquidity(tLiquidity);
      _reflectFee(rFee, tFee);
      emit Transfer(sender, recipient, tTransferAmount);
  }

  function _transferToExcluded(address sender, address recipient, uint256 tAmount) private {
      (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity) = _getValues(tAmount);
      _rOwned[sender] = _rOwned[sender].sub(rAmount);
      _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount);
      _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);           
      _takeLiquidity(tLiquidity);
      _reflectFee(rFee, tFee);
      emit Transfer(sender, recipient, tTransferAmount);
  }

  function _transferFromExcluded(address sender, address recipient, uint256 tAmount) private {
      (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity) = _getValues(tAmount);
      _tOwned[sender] = _tOwned[sender].sub(tAmount);
      _rOwned[sender] = _rOwned[sender].sub(rAmount);
      _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);   
      _takeLiquidity(tLiquidity);
      _reflectFee(rFee, tFee);
      emit Transfer(sender, recipient, tTransferAmount);
  }