creation_sourcecode: // SPDX-License-Identifier: MIT
  pragma solidity 0.8.24;
  
  /*
  
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  ╚══════╝╚═╝  ╚═╝    ╚══════╝ ╚═════╝  ╚═════╝╚═╝  ╚═╝
  
  Website: https://www.zklock.io/
  Telegram: https://t.me/ZkLocks
  Twitter: https://twitter.com/TeamZkLock
  */
  
  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;
      }
  
  }
  
  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() {
          _transferOwnership(_msgSender());
      }
  
      /**
       * @dev Throws if called by any account other than the owner.
       */
      modifier onlyOwner() {
          _checkOwner();
          _;
      }
  
      /**
       * @dev Returns the address of the current owner.
       */
      function owner() public view virtual returns (address) {
          return _owner;
      }
  
      /**
       * @dev Throws if the sender is not the owner.
       */
      function _checkOwner() internal view virtual {
          require(owner() == _msgSender(), "Ownable: caller is not the owner");
      }
  
      /**
       * @dev Leaves the contract without owner. It will not be possible to call
       * `onlyOwner` functions. Can only be called by the current owner.
       *
       * NOTE: Renouncing ownership will leave the contract without an owner,
       * thereby disabling any functionality that is only available to the owner.
       */
      function renounceOwnership() public virtual onlyOwner {
          _transferOwnership(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");
          _transferOwnership(newOwner);
      }
  
      /**
       * @dev Transfers ownership of the contract to a new account (`newOwner`).
       * Internal function without access restriction.
       */
      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);
      function addLiquidityETH(
          address token,
          uint amountTokenDesired,
          uint amountTokenMin,
          uint amountETHMin,
          address to,
          uint deadline
      ) external payable returns (uint amountToken, uint amountETH, uint liquidity);
  }
  
  contract ZkLock is Context, IERC20, Ownable {
      using SafeMath for uint256;
  
      mapping (address => uint256) private _balances;
      mapping (address => mapping (address => uint256)) private _allowances;
      mapping (address => bool) public _isExcludedFromFee;
  
      uint8 private constant _decimals = 18;
      uint256 private constant _tTotal = 100000000 * 10**_decimals; 
      string private constant _name = unicode"ZkLock";  
      string private constant _symbol = unicode"ZKLK"; 
      uint256 public _taxSwapThreshold= 100000 * 10**_decimals;
      uint256 public walletLimit = 2000000 * 10 ** decimals();
  
      uint256 public _feeOnBuy = 5; //on buy fee
      uint256 public _feeOnSell = 5; // on sell fee
      uint256 public _feeOnTransfer = 5; //on transfer fee
  
      address payable public projectFeeWallet = payable(0xdF8c129C95B35C94B3B62dce6b071fD48C134cAC);
  
      IUniswapV2Router02 private uniswapV2Router;
      address private uniswapV2Pair;
      bool private inSwap = false;
      bool private swapEnabled = true;
  
      modifier lockTheSwap {
          inSwap = true;
          _;
          inSwap = false;
      }
  
      constructor () {
          IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D); // mainnet router address
          
          // 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;
  
          _balances[_msgSender()] = _tTotal;
          _isExcludedFromFee[owner()] = true;
          _isExcludedFromFee[address(this)] = true;
          _isExcludedFromFee[projectFeeWallet] = 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 (uint8) {
          return _decimals;
      }
  
      function totalSupply() public pure override returns (uint256) {
          return _tTotal;
      }
  
      function balanceOf(address account) public view override returns (uint256) {
          return _balances[account];
      }
  
      function transfer(address recipient, uint256 amount) public override returns (bool) {
          _transfer(_msgSender(), recipient, amount);
          return true;
      }
  
      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 _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");
          uint256 taxAmount=0;
          if (!_isExcludedFromFee[from] && !_isExcludedFromFee[to]) {
  
              if(to != uniswapV2Pair){
                 require(balanceOf(to) + amount <= walletLimit, "higher than the walletLimit for tokens.");
              }
  
              if(_feeOnBuy > 0) {
              if (from == uniswapV2Pair && to != address(uniswapV2Router)) {
                  taxAmount = amount.mul(_feeOnBuy).div(100);
              }
              }
  
              if(_feeOnTransfer > 0) {
              if(to != uniswapV2Pair && from != uniswapV2Pair) {
                  taxAmount = amount.mul(_feeOnTransfer).div(100);
              }
              }
  
              if(_feeOnSell > 0) {
              if(to == uniswapV2Pair){
                  taxAmount = amount.mul(_feeOnSell).div(100);
              }
              }
  
              uint256 contractTokenBalance = balanceOf(address(this));
              if (!inSwap && to == uniswapV2Pair && swapEnabled && contractTokenBalance>_taxSwapThreshold) {
                  swapTokensForEth(contractTokenBalance);
                  uint256 contractETHBalance = address(this).balance;
                  if(contractETHBalance > 0) {
                      sendETHToFee(address(this).balance);
                  }
              }
          }
  
          if(taxAmount>0){
            _balances[address(this)]=_balances[address(this)].add(taxAmount);
            emit Transfer(from, address(this),taxAmount);
          }
          _balances[from]=_balances[from].sub(amount);
          _balances[to]=_balances[to].add(amount.sub(taxAmount));
          emit Transfer(from, to, amount.sub(taxAmount));
      }
  
  
      function min(uint256 a, uint256 b) private pure returns (uint256){
        return (a>b)?b:a;
      }
  
      function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {
          if(tokenAmount==0){return;}
          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 sendETHToFee(uint256 amount) private {
         (bool callSuccess, ) = payable(projectFeeWallet).call{value: amount}("");
          require(callSuccess, "Call failed");
      }
  
      receive() external payable {}
  
      function changeWalletLimit(uint256 _Limit) public onlyOwner{
          require(_Limit > totalSupply().div(200),"Limit very low");
          walletLimit = _Limit;
      }
  
      function changeTaxFees(uint256 _bFee, uint256 _sFee) public onlyOwner {
          _feeOnBuy = _bFee;
          _feeOnSell = _sFee;
      }
      
      }