creation_sourcecode: // SPDX-License-Identifier: MIT
  
  /*⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀.⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
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  Drops Lock Marketplace is the first locked liquidity marketplace.
  This is the Drops Tier 01 Earning Center smart contract.
  
  https://drops.site
  https://t.me/dropserc
  https://x.com/dropserc
  
  $DROPS token address -> 0xA562912e1328eEA987E04c2650EfB5703757850C
  
  */
  
  pragma solidity ^0.8.20;
  
  /**
   * @dev Provides information about the current execution context, including the
   * sender of the transaction and its data. While these are generally available
   * via msg.sender and msg.data, they should not be accessed in such a direct
   * manner, since when dealing with meta-transactions the account sending and
   * paying for execution may not be the actual sender (as far as an application
   * is concerned).
   *
   * This contract is only required for intermediate, library-like contracts.
   */
  abstract contract Context {
      function _msgSender() internal view virtual returns (address) {
          return msg.sender;
      }
  
      function _msgData() internal view virtual returns (bytes calldata) {
          return msg.data;
      }
  
      function _contextSuffixLength() internal view virtual returns (uint256) {
          return 0;
      }
  }
  
  pragma solidity ^0.8.20;
  
  /**
   * @dev Contract module that helps prevent reentrant calls to a function.
   *
   * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
   * available, which can be applied to functions to make sure there are no nested
   * (reentrant) calls to them.
   *
   * Note that because there is a single `nonReentrant` guard, functions marked as
   * `nonReentrant` may not call one another. This can be worked around by making
   * those functions `private`, and then adding `external` `nonReentrant` entry
   * points to them.
   *
   * TIP: If you would like to learn more about reentrancy and alternative ways
   * to protect against it, check out our blog post
   * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
   */
  abstract contract ReentrancyGuard {
      // Booleans are more expensive than uint256 or any type that takes up a full
      // word because each write operation emits an extra SLOAD to first read the
      // slot's contents, replace the bits taken up by the boolean, and then write
      // back. This is the compiler's defense against contract upgrades and
      // pointer aliasing, and it cannot be disabled.
  
      // The values being non-zero value makes deployment a bit more expensive,
      // but in exchange the refund on every call to nonReentrant will be lower in
      // amount. Since refunds are capped to a percentage of the total
      // transaction's gas, it is best to keep them low in cases like this one, to
      // increase the likelihood of the full refund coming into effect.
      uint256 private constant NOT_ENTERED = 1;
      uint256 private constant ENTERED = 2;
  
      uint256 private _status;
  
      /**
       * @dev Unauthorized reentrant call.
       */
      error ReentrancyGuardReentrantCall();
  
      constructor() {
          _status = NOT_ENTERED;
      }
  
      /**
       * @dev Prevents a contract from calling itself, directly or indirectly.
       * Calling a `nonReentrant` function from another `nonReentrant`
       * function is not supported. It is possible to prevent this from happening
       * by making the `nonReentrant` function external, and making it call a
       * `private` function that does the actual work.
       */
      modifier nonReentrant() {
          _nonReentrantBefore();
          _;
          _nonReentrantAfter();
      }
  
      function _nonReentrantBefore() private {
          // On the first call to nonReentrant, _status will be NOT_ENTERED
          if (_status == ENTERED) {
              revert ReentrancyGuardReentrantCall();
          }
  
          // Any calls to nonReentrant after this point will fail
          _status = ENTERED;
      }
  
      function _nonReentrantAfter() private {
          // By storing the original value once again, a refund is triggered (see
          // https://eips.ethereum.org/EIPS/eip-2200)
          _status = NOT_ENTERED;
      }
  
      /**
       * @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a
       * `nonReentrant` function in the call stack.
       */
      function _reentrancyGuardEntered() internal view returns (bool) {
          return _status == ENTERED;
      }
  }
  
  
  pragma solidity >=0.6.2;
  
  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);
  }
  
  pragma solidity >=0.6.2;
  
  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;
  }
  
  // OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/IERC20.sol)
  
  pragma solidity ^0.8.20;
  
  /**
   * @dev Interface of the ERC-20 standard as defined in the ERC.
   */
  interface IERC20 {
      /**
       * @dev Emitted when `value` tokens are moved from one account (`from`) to
       * another (`to`).
       *
       * Note that `value` may be zero.
       */
      event Transfer(address indexed from, address indexed to, uint256 value);
  
      /**
       * @dev Emitted when the allowance of a `spender` for an `owner` is set by
       * a call to {approve}. `value` is the new allowance.
       */
      event Approval(address indexed owner, address indexed spender, uint256 value);
  
      /**
       * @dev Returns the value of tokens in existence.
       */
      function totalSupply() external view returns (uint256);
  
      /**
       * @dev Returns the value of tokens owned by `account`.
       */
      function balanceOf(address account) external view returns (uint256);
  
      /**
       * @dev Moves a `value` amount of tokens from the caller's account to `to`.
       *
       * Returns a boolean value indicating whether the operation succeeded.
       *
       * Emits a {Transfer} event.
       */
      function transfer(address to, uint256 value) external returns (bool);
  
      /**
       * @dev Returns the remaining number of tokens that `spender` will be
       * allowed to spend on behalf of `owner` through {transferFrom}. This is
       * zero by default.
       *
       * This value changes when {approve} or {transferFrom} are called.
       */
      function allowance(address owner, address spender) external view returns (uint256);
  
      /**
       * @dev Sets a `value` amount of tokens as the allowance of `spender` over the
       * caller's tokens.
       *
       * Returns a boolean value indicating whether the operation succeeded.
       *
       * IMPORTANT: Beware that changing an allowance with this method brings the risk
       * that someone may use both the old and the new allowance by unfortunate
       * transaction ordering. One possible solution to mitigate this race
       * condition is to first reduce the spender's allowance to 0 and set the
       * desired value afterwards:
       * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
       *
       * Emits an {Approval} event.
       */
      function approve(address spender, uint256 value) external returns (bool);
  
      /**
       * @dev Moves a `value` amount of tokens from `from` to `to` using the
       * allowance mechanism. `value` is then deducted from the caller's
       * allowance.
       *
       * Returns a boolean value indicating whether the operation succeeded.
       *
       * Emits a {Transfer} event.
       */
      function transferFrom(address from, address to, uint256 value) external returns (bool);
  
      function decimals() external view returns(uint8);
  }
  
  // OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol)
  
  pragma solidity ^0.8.20;
  
  /**
   * @dev Contract module which provides a basic access control mechanism, where
   * there is an account (an owner) that can be granted exclusive access to
   * specific functions.
   *
   * The initial owner is set to the address provided by the deployer. This can
   * later be changed with {transferOwnership}.
   *
   * This module is used through inheritance. It will make available the modifier
   * `onlyOwner`, which can be applied to your functions to restrict their use to
   * the owner.
   */
  abstract contract Ownable is Context {
      address private _owner;
  
      /**
       * @dev The caller account is not authorized to perform an operation.
       */
      error OwnableUnauthorizedAccount(address account);
  
      /**
       * @dev The owner is not a valid owner account. (eg. `address(0)`)
       */
      error OwnableInvalidOwner(address owner);
  
      event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
  
      /**
       * @dev Initializes the contract setting the address provided by the deployer as the initial owner.
       */
      constructor(address initialOwner) {
          if (initialOwner == address(0)) {
              revert OwnableInvalidOwner(address(0));
          }
          _transferOwnership(initialOwner);
      }
  
      /**
       * @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 {
          if (owner() != _msgSender()) {
              revert OwnableUnauthorizedAccount(_msgSender());
          }
      }
  
      /**
       * @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 {
          if (newOwner == address(0)) {
              revert OwnableInvalidOwner(address(0));
          }
          _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);
      }
  }
  
  
  library Address {
      /**
       * @dev Returns true if `account` is a contract.
       *
       * [IMPORTANT]
       * ====
       * It is unsafe to assume that an address for which this function returns
       * false is an externally-owned account (EOA) and not a contract.
       *
       * Among others, `isContract` will return false for the following
       * types of addresses:
       *
       *  - an externally-owned account
       *  - a contract in construction
       *  - an address where a contract will be created
       *  - an address where a contract lived, but was destroyed
       * ====
       *
       * [IMPORTANT]
       * ====
       * You shouldn't rely on `isContract` to protect against flash loan attacks!
       *
       * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
       * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
       * constructor.
       * ====
       */
      function isContract(address account) internal view returns (bool) {
          // This method relies on extcodesize/address.code.length, which returns 0
          // for contracts in construction, since the code is only stored at the end
          // of the constructor execution.
  
          return account.code.length > 0;
      }
  
      /**
       * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
       * `recipient`, forwarding all available gas and reverting on errors.
       *
       * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
       * of certain opcodes, possibly making contracts go over the 2300 gas limit
       * imposed by `transfer`, making them unable to receive funds via
       * `transfer`. {sendValue} removes this limitation.
       *
       * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
       *
       * IMPORTANT: because control is transferred to `recipient`, care must be
       * taken to not create reentrancy vulnerabilities. Consider using
       * {ReentrancyGuard} or the
       * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
       */
      function sendValue(address payable recipient, uint256 amount) internal {
          require(address(this).balance >= amount, "Address: insufficient balance");
  
          (bool success, ) = recipient.call{value: amount}("");
          require(success, "Address: unable to send value, recipient may have reverted");
      }
  
      /**
       * @dev Performs a Solidity function call using a low level `call`. A
       * plain `call` is an unsafe replacement for a function call: use this
       * function instead.
       *
       * If `target` reverts with a revert reason, it is bubbled up by this
       * function (like regular Solidity function calls).
       *
       * Returns the raw returned data. To convert to the expected return value,
       * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
       *
       * Requirements:
       *
       * - `target` must be a contract.
       * - calling `target` with `data` must not revert.
       *
       * _Available since v3.1._
       */
      function functionCall(address target, bytes memory data) internal returns (bytes memory) {
          return functionCall(target, data, "Address: low-level call failed");
      }
  
      /**
       * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
       * `errorMessage` as a fallback revert reason when `target` reverts.
       *
       * _Available since v3.1._
       */
      function functionCall(
          address target,
          bytes memory data,
          string memory errorMessage
      ) internal returns (bytes memory) {
          return functionCallWithValue(target, data, 0, errorMessage);
      }
  
      /**
       * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
       * but also transferring `value` wei to `target`.
       *
       * Requirements:
       *
       * - the calling contract must have an ETH balance of at least `value`.
       * - the called Solidity function must be `payable`.
       *
       * _Available since v3.1._
       */
      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");
      }
  
      /**
       * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
       * with `errorMessage` as a fallback revert reason when `target` reverts.
       *
       * _Available since v3.1._
       */
      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");
          require(isContract(target), "Address: call to non-contract");
  
          (bool success, bytes memory returndata) = target.call{value: value}(data);
          return verifyCallResult(success, returndata, errorMessage);
      }
  
      /**
       * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
       * but performing a static call.
       *
       * _Available since v3.3._
       */
      function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
          return functionStaticCall(target, data, "Address: low-level static call failed");
      }
  
      /**
       * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
       * but performing a static call.
       *
       * _Available since v3.3._
       */
      function functionStaticCall(
          address target,
          bytes memory data,
          string memory errorMessage
      ) internal view returns (bytes memory) {
          require(isContract(target), "Address: static call to non-contract");
  
          (bool success, bytes memory returndata) = target.staticcall(data);
          return verifyCallResult(success, returndata, errorMessage);
      }
  
      /**
       * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
       * but performing a delegate call.
       *
       * _Available since v3.4._
       */
      function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
          return functionDelegateCall(target, data, "Address: low-level delegate call failed");
      }
  
      /**
       * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
       * but performing a delegate call.
       *
       * _Available since v3.4._
       */
      function functionDelegateCall(
          address target,
          bytes memory data,
          string memory errorMessage
      ) internal returns (bytes memory) {
          require(isContract(target), "Address: delegate call to non-contract");
  
          (bool success, bytes memory returndata) = target.delegatecall(data);
          return verifyCallResult(success, returndata, errorMessage);
      }
  
      /**
       * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
       * revert reason using the provided one.
       *
       * _Available since v4.3._
       */
      function verifyCallResult(
          bool success,
          bytes memory returndata,
          string memory errorMessage
      ) internal pure returns (bytes memory) {
          if (success) {
              return returndata;
          } else {
              // Look for revert reason and bubble it up if present
              if (returndata.length > 0) {
                  // The easiest way to bubble the revert reason is using memory via assembly
  
                  assembly {
                      let returndata_size := mload(returndata)
                      revert(add(32, returndata), returndata_size)
                  }
              } else {
                  revert(errorMessage);
              }
          }
      }
  }
  
  library SafeERC20 {
      using Address for address;
  
      function safeTransfer(
          IERC20 token,
          address to,
          uint256 value
      ) internal {
          _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
      }
  
      function safeTransferFrom(
          IERC20 token,
          address from,
          address to,
          uint256 value
      ) internal {
          _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
      }
  
      /**
       * @dev Deprecated. This function has issues similar to the ones found in
       * {IERC20-approve}, and its usage is discouraged.
       *
       * Whenever possible, use {safeIncreaseAllowance} and
       * {safeDecreaseAllowance} instead.
       */
      function safeApprove(
          IERC20 token,
          address spender,
          uint256 value
      ) internal {
          // safeApprove should only be called when setting an initial allowance,
          // or when resetting it to zero. To increase and decrease it, use
          // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
          require(
              (value == 0) || (token.allowance(address(this), spender) == 0),
              "SafeERC20: approve from non-zero to non-zero allowance"
          );
          _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
      }
  
      function safeIncreaseAllowance(
          IERC20 token,
          address spender,
          uint256 value
      ) internal {
          uint256 newAllowance = token.allowance(address(this), spender) + value;
          _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
      }
  
      function safeDecreaseAllowance(
          IERC20 token,
          address spender,
          uint256 value
      ) internal {
          unchecked {
              uint256 oldAllowance = token.allowance(address(this), spender);
              require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
              uint256 newAllowance = oldAllowance - value;
              _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
          }
      }
  
      /**
       * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
       * on the return value: the return value is optional (but if data is returned, it must not be false).
       * @param token The token targeted by the call.
       * @param data The call data (encoded using abi.encode or one of its variants).
       */
      function _callOptionalReturn(IERC20 token, bytes memory data) private {
          // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
          // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that
          // the target address contains contract code and also asserts for success in the low-level call.
  
          bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
          if (returndata.length > 0) {
              // Return data is optional
              require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
          }
      }
  }
  
  pragma solidity 0.8.20;
  
  contract DropsTier1 is Ownable, ReentrancyGuard {
      
      using SafeERC20 for IERC20;
  
      IUniswapV2Router02 public hashSwapRouter;
  
      address public hashSwapPair;
      // The address of the smart chef factory
      address public SMART_CHEF_FACTORY;
  
      // Fee wallet
      address public feeAddress = 0xcdB94D75b5522B0440f638a17bE7f8d70a7745f6;
  
      // Whether a limit is set for users
      bool public hasUserLimit;
  
      // Whether contract is initialized
      bool public isInitialized;
  
      // Accrued token per share
      uint256 public accTokenPerShare;
    
      uint256 public bonusEndBlock;
      
      uint256 public startBlock;
  
      // The block number of the last pool update
      uint256 public lastRewardBlock;
  
      // The pool limit (0 if none)
      uint256 public poolLimitPerUser;
      
      uint256 public rewardPerBlock;
  
      // Deposit Fee.
      uint256 public depositFeeBP;
  
      // Withdraw Fee.
      uint256 public withdrawFeeBP;
  
      uint256 public contractLockPeriod; // 6-month in seconds
  
      // The precision factor
      uint256 public PRECISION_FACTOR;
  
      // The reward token
      IERC20 public rewardToken;
  
      // The staked token
      IERC20 public stakedToken;
      // The total staked amount
      uint256 public totalstakedAmount = 0;
     
      uint256 public withdrawalFeeInterval;
      uint256 public withdrawalFeeDeadline; 
  
      mapping(address => UserInfo) public userInfo;
  
      struct UserInfo {
          uint256 amount; // How many staked tokens the user has provided
          uint256 rewardDebt; // Reward debt
          uint256 noWithdrawalFeeAfter;
          uint256 depositTime;
          uint256 rewardLockedUp;  // Reward locked up.
      }
  
      event AdminTokenRecovery(address tokenRecovered, uint256 amount);
      event Deposit(address indexed user, uint256 amount);
      event EmergencyWithdraw(address indexed user, uint256 amount);
      event NewStartAndEndBlocks(uint256 startBlock, uint256 endBlock);
      event NewRewardPerBlock(uint256 rewardPerBlock);
      event NewPoolLimit(uint256 poolLimitPerUser);
      event RewardsStop(uint256 blockNumber);
      event Withdraw(address indexed user, uint256 amount);
      event NewFees(uint256 newDepositFeeBP, uint256 newWithdrawFeeBP);
      event UpdatedFeeAddress(address oldfeeaddress, address newfeeaddress);
  
      constructor() Ownable(msg.sender) {
          SMART_CHEF_FACTORY = msg.sender;
      } 
      
      receive() external payable {}
  
      /// @notice Initialize the contract
      /// @param _stakedToken Staked token address
      /// @param _rewardToken Reward token address
      /// @param _rewardPerBlock Reward per block (in rewardToken)
      /// @param _startBlock Start block
      /// @param _bonusEndBlock End block
      /// @param _poolLimitPerUser Pool limit per user in stakedToken (if any, else 0)
      function initialize(
          IERC20 _stakedToken,
          IERC20 _rewardToken,
          uint256 _rewardPerBlock,
          uint256 _startBlock,
          uint256 _bonusEndBlock,
          uint256 _poolLimitPerUser,
          uint256 _depositFeeBP,
          uint256 _withdrawFeeBP,
          uint256 _withdrawalFeeInterval,
          uint256 _withdrawalFeeDeadline,
          uint256 _contractLockPeriod
      ) external {
          require(!isInitialized, "Already initialized");
          require(msg.sender == SMART_CHEF_FACTORY, "Not factory");
          require(_depositFeeBP <= 10000, "Cannot be bigger than 100");
          require(_withdrawFeeBP <= 10000, "Cannot be bigger than 100");
  
          isInitialized = true;
  
          stakedToken = _stakedToken;
          rewardToken = _rewardToken;
          rewardPerBlock = _rewardPerBlock;
          startBlock = _startBlock;
          bonusEndBlock = _bonusEndBlock;
          depositFeeBP = _depositFeeBP;
          withdrawFeeBP = _withdrawFeeBP;
          withdrawalFeeInterval = _withdrawalFeeInterval;
          withdrawalFeeDeadline = _withdrawalFeeDeadline;
          contractLockPeriod = _contractLockPeriod;
          if (_poolLimitPerUser > 0) {
              hasUserLimit = true;
              poolLimitPerUser = _poolLimitPerUser;
          }
  
          uint256 decimalsRewardToken = IERC20(_rewardToken).decimals();
          require(decimalsRewardToken < 30, "Must be inferior to 30");
  
          PRECISION_FACTOR = uint256(10**(30-decimalsRewardToken));
  
          // Set the lastRewardBlock as the startBlock
          lastRewardBlock = startBlock;
  
      }
  
      function remainLockTime(address _user) 
          public
          view
          returns (uint256)
      {
          UserInfo storage user = userInfo[_user];
          uint256 timeElapsed = block.timestamp - (user.depositTime);
          uint256 remainingLockTime = 0;
          if (user.depositTime == 0) {
              remainingLockTime = 0;
          } else if(timeElapsed < contractLockPeriod) {
              remainingLockTime = (contractLockPeriod - (timeElapsed)) > bonusEndBlock ? bonusEndBlock : (contractLockPeriod - (timeElapsed));
          }
  
          return remainingLockTime;
      }
  
      /// @notice Deposit staked tokens and collect reward tokens (if any)
      /// @param _amount Amount to withdraw (in rewardToken)
      function deposit(uint256 _amount) external nonReentrant {
          UserInfo storage user = userInfo[msg.sender];
          uint256 remainLock = remainLockTime(msg.sender);
          uint256 depositAmount = _amount;
          if (hasUserLimit) {
              require(_amount + user.amount <= poolLimitPerUser, "User amount above limit");
          }
  
          _updatePool();
          if (user.amount > 0) {
              uint256 pending = (user.amount * accTokenPerShare) / PRECISION_FACTOR - user.rewardDebt;
               if (pending > 0 || user.rewardLockedUp > 0) {
                    if (remainLock <= 0) {
                        pending = pending + user.rewardLockedUp;
                        rewardToken.safeTransfer(address(msg.sender), pending);
                        user.rewardLockedUp = 0;
              } else if (pending > 0) {
                      user.rewardLockedUp = user.rewardLockedUp + pending;
                  }
          } }
  
          if (_amount > 0) {
              require(stakedToken.balanceOf(address(msg.sender)) >= _amount);
              uint256 beforeStakedTokenTotalBalance = stakedToken.balanceOf(address(this));
              if(depositFeeBP > 0) {
                  uint256 depositFee = _amount * depositFeeBP /10000;
                  stakedToken.safeTransferFrom(address(msg.sender), address(this), _amount - depositFee);
                  stakedToken.safeTransferFrom(address(msg.sender), feeAddress, depositFee);
              } else {
                  stakedToken.safeTransferFrom(address(msg.sender), address(this), _amount);
              }
              uint256 depositedAmount = stakedToken.balanceOf(address(this)) - beforeStakedTokenTotalBalance;
              user.amount = user.amount + depositedAmount;
              depositAmount = depositedAmount;
              totalstakedAmount = totalstakedAmount + depositedAmount;
              uint256 shouldNotWithdrawBefore = block.timestamp + withdrawalFeeInterval;
              if (shouldNotWithdrawBefore > withdrawalFeeDeadline) {
                  shouldNotWithdrawBefore = withdrawalFeeDeadline;
              }
              user.noWithdrawalFeeAfter = shouldNotWithdrawBefore;
              user.depositTime = block.timestamp;
          }
  
          user.rewardDebt = (user.amount * accTokenPerShare) / PRECISION_FACTOR;
          emit Deposit(msg.sender, depositAmount);
      }
  
      /// @notice Withdraw staked tokens and collect reward tokens
      /// @param _amount Amount to withdraw (in rewardToken)
      function withdraw(uint256 _amount) external nonReentrant {
          UserInfo storage user = userInfo[msg.sender];
          uint256 remainLock = remainLockTime(msg.sender);
          require(user.amount >= _amount, "Amount to withdraw too high");
          require(remainLock <= 0, "withdraw: locktime remains!");
          _updatePool();
  
          uint256 pending = user.amount * accTokenPerShare / PRECISION_FACTOR - user.rewardDebt + user.rewardLockedUp;
  
          if (_amount > 0) {
              uint256 beforestakedtokentotalsupply = stakedToken.balanceOf(address(this));
              if(withdrawFeeBP > 0) {
                  uint256 withdrawFee = _amount * withdrawFeeBP / 10000;
                  stakedToken.safeTransfer(address(msg.sender), _amount - withdrawFee);
                  stakedToken.safeTransfer(feeAddress, withdrawFee);
              } else {
                  stakedToken.safeTransfer(address(msg.sender), _amount);
              }
              uint256 withdrawamount = beforestakedtokentotalsupply - stakedToken.balanceOf(address(this));
              totalstakedAmount = totalstakedAmount - withdrawamount;
              user.amount = user.amount - withdrawamount;
              user.noWithdrawalFeeAfter = block.timestamp + withdrawalFeeInterval;
          }
  
          if (pending > 0) {
              rewardToken.safeTransfer(address(msg.sender), pending);
          }
  
          user.rewardDebt = (user.amount * accTokenPerShare) / PRECISION_FACTOR;
          user.rewardLockedUp = 0;
          emit Withdraw(msg.sender, _amount);
      }
  
      /// @notice Withdraw staked tokens without caring about rewards rewards
      /// @dev Needs to be for emergency.
      function emergencyWithdraw() external nonReentrant {
          UserInfo storage user = userInfo[msg.sender];
          uint256 amountToTransfer = user.amount;
          user.amount = 0;
          user.rewardDebt = 0;
          user.rewardLockedUp = 0;
  
          if (amountToTransfer > 0) {
              totalstakedAmount = totalstakedAmount - amountToTransfer;
              stakedToken.safeTransfer(address(msg.sender), amountToTransfer);
          }
  
          emit EmergencyWithdraw(msg.sender, user.amount);
      }
  
      /// @notice Stop rewards
      /// @dev Only callable by owner. Needs to be for emergency.
      function emergencyRewardWithdraw(uint256 _amount) external onlyOwner {
          rewardToken.safeTransfer(address(msg.sender), _amount);
      }
    
      function recoverWrongTokens(address _tokenAddress, uint256 _tokenAmount) external onlyOwner {
          IERC20(_tokenAddress).transfer(address(msg.sender), _tokenAmount);
          emit AdminTokenRecovery(_tokenAddress, _tokenAmount);
      }
  
      function clearStuckBalance(uint256 amountPercentage, address _walletAddress) external onlyOwner {
          require(_walletAddress != address(this));
          uint256 amountETH = address(this).balance;
          payable(_walletAddress).transfer(amountETH * amountPercentage / 100);
      }
      
      /// @notice Stop rewards
      /// @dev Only callable by owner
      function stopReward() external onlyOwner {
          bonusEndBlock = block.number;
      }
  
      /// @notice Update pool limit per user
      /// @dev Only callable by owner.
      /// @param _hasUserLimit Whether the limit remains forced
      /// @param _poolLimitPerUser New pool limit per user
      function updatePoolLimitPerUser(bool _hasUserLimit, uint256 _poolLimitPerUser) external onlyOwner {
          require(hasUserLimit, "Must be set");
          if (_hasUserLimit) {
              require(_poolLimitPerUser > poolLimitPerUser, "New limit must be higher");
              poolLimitPerUser = _poolLimitPerUser;
          } else {
              hasUserLimit = _hasUserLimit;
              poolLimitPerUser = 0;
          }
          emit NewPoolLimit(poolLimitPerUser);
      }
  
      /// @notice Update reward per block
      /// @dev Only callable by owner.
      /// @param _rewardPerBlock The reward per block
      function updateRewardPerBlock(uint256 _rewardPerBlock) external onlyOwner {
          rewardPerBlock = _rewardPerBlock;
          emit NewRewardPerBlock(_rewardPerBlock);
      }
  
      function updateFees(uint256 _newDepositFeeBP, uint256 _newWithdrawFeeBP) external onlyOwner {        
          require(_newDepositFeeBP <= 10000, "Cannot be bigger than 100");
          require(_newWithdrawFeeBP <= 10000, "Cannot be bigger than 100");
          depositFeeBP = _newDepositFeeBP;
          withdrawFeeBP = _newWithdrawFeeBP;
          emit NewFees(depositFeeBP, withdrawFeeBP);
      }
  
      function updateFeeAddress(address newFeeAddress) external {
          require(msg.sender == feeAddress, "Set: You do not have right permission");
          emit UpdatedFeeAddress(feeAddress, newFeeAddress);
          feeAddress = newFeeAddress;
      }
  
      /// @notice It allows the admin to update start and end blocks
      /// @dev This function is only callable by owner.
      /// @param _startBlock The new start block
      /// @param _bonusEndBlock The new end block
      function updateStartAndEndBlocks(
          uint256 _startBlock,
          uint256 _bonusEndBlock,
          uint256 _withdrawalFeeInterval,
          uint256 _withdrawalFeeDeadline,
          uint256 _contractLockPeriod
          ) external onlyOwner {
          require(_startBlock < _bonusEndBlock, "New startBlock must be lower than new endBlock");
          require(block.number < _startBlock, "New startBlock must be higher than current block");
  
          startBlock = _startBlock;
          bonusEndBlock = _bonusEndBlock;
          withdrawalFeeInterval = _withdrawalFeeInterval;
          withdrawalFeeDeadline = _withdrawalFeeDeadline;
          contractLockPeriod = _contractLockPeriod;
  
          // Set the lastRewardBlock as the startBlock
          lastRewardBlock = startBlock;
  
          emit NewStartAndEndBlocks(_startBlock, _bonusEndBlock);
      }
  
      /// @notice View function to see pending reward on frontend.
      /// @param _user User address
      /// @return uint256 Reward for a given user
      function pendingReward(address _user) external view returns (uint256) {
          UserInfo storage user = userInfo[_user];
          if (block.number > lastRewardBlock && totalstakedAmount != 0) {
              uint256 multiplier = _getMultiplier(lastRewardBlock, block.number);
              uint256 vivReward = multiplier * rewardPerBlock;
              uint256 adjustedTokenPerShare =
                  accTokenPerShare + (vivReward * PRECISION_FACTOR / totalstakedAmount);
              return user.amount * adjustedTokenPerShare / PRECISION_FACTOR - user.rewardDebt;
          } else {
              return user.amount * accTokenPerShare / PRECISION_FACTOR - user.rewardDebt;
          }
      }
  
      /// @notice Update reward variables of the given pool to be up-to-date.
      function _updatePool() internal {
          if (block.number <= lastRewardBlock) {
              return;
          }
  
          if (totalstakedAmount == 0) {
              lastRewardBlock = block.number;
              return;
          }
  
          uint256 multiplier = _getMultiplier(lastRewardBlock, block.number);
          uint256 vivReward = multiplier * rewardPerBlock;
          accTokenPerShare = accTokenPerShare + (vivReward * PRECISION_FACTOR / totalstakedAmount);
          lastRewardBlock = block.number;
      }
  
      /// @notice Return reward multiplier over the given _from to _to block.
      /// @param _from Block to start
      /// @param _to Block to finish
      function _getMultiplier(uint256 _from, uint256 _to) internal view returns (uint256) {
          if (_to <= bonusEndBlock) {
              return _to - _from;
          } else if (_from >= bonusEndBlock) {
              return 0;
          } else {
              return bonusEndBlock - _from;
          }
      }
  
      function rewardDuration() public view returns (uint256) {
          return bonusEndBlock - startBlock;
      }
  
      function calcRewardPerBlock() public onlyOwner {
          require(block.number < startBlock, "Pool has started");
          uint256 rewardBal = rewardToken.balanceOf(address(this));
          rewardPerBlock = rewardBal / rewardDuration();
      }
  }