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// SPDX-License-Identifier: MIT
pragma solidity 0.8.11;

import {Pausable} from "@openzeppelin/contracts/security/Pausable.sol";
import {Ownable} from "@openzeppelin/contracts/access/Ownable.sol";
import {Math} from "@openzeppelin/contracts/utils/math/Math.sol";
import {EnumerableSet} from "@openzeppelin/contracts/utils/structs/EnumerableSet.sol";
import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol";



/// @title Celestial Vault
contract CelestialVaultV2 is Ownable, Pausable {
  using EnumerableSet for EnumerableSet.UintSet;

  /* -------------------------------------------------------------------------- */
  /*                                Farming State                               */
  /* -------------------------------------------------------------------------- */

  /// @notice Rewards emitted per day staked.
  uint256 public rate;

  /// @notice Rewards of token 2 emitted per day staked.
  uint256 public rate2;

  /// @notice Endtime of token rewards.
  uint256 public endTime;

  /// @notice Endtime of token 2 rewards.
  uint256 public endTime2;

  /// @notice Staking token contract address.
  ICKEY public stakingToken;

  /// @notice Rewards token contract address.
  IFBX public rewardToken;

  /// @notice WRLD token contract address.
  IWRLD public rewardToken2;

  /// @notice Set of staked token ids by address.
  mapping(address => EnumerableSet.UintSet) internal _depositedIds;

  /// @notice Mapping of timestamps from each staked token id.
  // mapping(address => mapping(uint256 => uint256)) internal _depositedBlocks;
  mapping(address => mapping(uint256 => uint256)) public _depositedBlocks;

  /// @notice Mapping of tokenIds to their rate modifier
  mapping(uint256 => uint256) public _rateModifiers;

  bool public emergencyWithdrawEnabled;

  constructor(
    address newStakingToken,
    address newRewardToken,
    address newRewardToken2,
    uint256 newRate,
    uint256 newRate2
  ) {
    stakingToken = ICKEY(newStakingToken);
    rewardToken = IFBX(newRewardToken);
    rewardToken2 = IWRLD(newRewardToken2);
    rate = newRate;
    rate2 = newRate2;
    _pause();
  }

  /* -------------------------------------------------------------------------- */
  /*                                Farming Logic                               */
  /* -------------------------------------------------------------------------- */

  /// @notice Deposit tokens into the vault.
  /// @param tokenIds Array of token tokenIds to be deposited.
  function deposit(uint256[] memory tokenIds) external whenNotPaused {
    for (uint256 i = 0; i < tokenIds.length; i++) {
      // Add the new deposit to the mapping
      _depositedIds[msg.sender].add(tokenIds[i]);
      _depositedBlocks[msg.sender][tokenIds[i]] = block.timestamp;

      // Transfer the deposited token to this contract
      stakingToken.transferFrom(msg.sender, address(this), tokenIds[i]);
    }
  }

  /// @notice Withdraw tokens and claim their pending rewards.
  /// @param tokenIds Array of staked token ids.
  function withdraw(uint256[] memory tokenIds) external whenNotPaused {
    uint256 totalRewards;
    uint256 totalRewards2;
    for (uint256 i = 0; i < tokenIds.length; i++) {
      require(_depositedIds[msg.sender].contains(tokenIds[i]), "Query for a token you don't own");
      totalRewards += _earned(_depositedBlocks[msg.sender][tokenIds[i]]);
      totalRewards2 += _earned2(_depositedBlocks[msg.sender][tokenIds[i]], tokenIds[i]);

      _depositedIds[msg.sender].remove(tokenIds[i]);
      delete _depositedBlocks[msg.sender][tokenIds[i]];

      stakingToken.safeTransferFrom(address(this), msg.sender, tokenIds[i]);
    }
    rewardToken.mint(msg.sender, totalRewards);
    rewardToken2.transfer(msg.sender, totalRewards2);
  }

  /// @notice Claim pending token rewards.
  function claim() external whenNotPaused {
    uint256 totalRewards;
    uint256 totalRewards2;
    for (uint256 i = 0; i < _depositedIds[msg.sender].length(); i++) {
      // Mint the new tokens and update last checkpoint
      uint256 tokenId = _depositedIds[msg.sender].at(i);
      totalRewards += _earned(_depositedBlocks[msg.sender][tokenId]);
      totalRewards2 += _earned2(_depositedBlocks[msg.sender][tokenId], tokenId);
      _depositedBlocks[msg.sender][tokenId] = block.timestamp;
    }
    rewardToken.mint(msg.sender, totalRewards);
    rewardToken2.transfer(msg.sender, totalRewards2);
  }

  /// @notice Calculate total rewards for given account.
  /// @param account Holder address.
  function earned(address account) external view returns (uint256[] memory) {
    uint256 length = _depositedIds[account].length();
    uint256[] memory rewards = new uint256[](length);

    for (uint256 i = 0; i < length; i++) {
      uint256 tokenId = _depositedIds[account].at(i);
      rewards[i] = _earned(_depositedBlocks[account][tokenId]);
    }
    return rewards;
  }

  /// @notice Calculate total WRLD token rewards for given account.
  /// @param account Holder address.
  function earned2(address account) external view returns (uint256[] memory) {
    uint256 length = _depositedIds[account].length();
    uint256[] memory rewards = new uint256[](length);

    for (uint256 i = 0; i < length; i++) {
      uint256 tokenId = _depositedIds[account].at(i);
      rewards[i] = _earned2(_depositedBlocks[account][tokenId], tokenId);
    }
    return rewards;
  }

  /// @notice Internally calculates rewards for given token.
  /// @param timestamp Deposit timestamp.
  function _earned(uint256 timestamp) internal view returns (uint256) {
    if (timestamp == 0) return 0;
    uint256 end;
    if (endTime == 0){ // endtime not set
      end = block.timestamp;
    }else{
      end = Math.min(block.timestamp, endTime);
    }
    if(timestamp > end){
      return 0;
    }
    return ((end - timestamp) * rate) / 1 days;
  }

  /// @notice Internally calculates WRLD rewards for given token.
  /// @param timestamp Deposit timestamp.
  function _earned2(uint256 timestamp, uint256 tokenId) internal view returns (uint256) {
    if (timestamp == 0) return 0;
    uint256 rateForTokenId = rate2 + _rateModifiers[tokenId];
    uint256 end;
    if (endTime2 == 0){ // endtime not set
      end = block.timestamp;
    }else{
      end = Math.min(block.timestamp, endTime2);
    }
    if(timestamp > end){
      return 0;
    }
    return ((end - timestamp) * rateForTokenId) / 1 days;
  }

  /// @notice Retrieve token ids deposited by account.
  /// @param account Token owner address.
  function depositsOf(address account) external view returns (uint256[] memory) {
    uint256 length = _depositedIds[account].length();
    uint256[] memory ids = new uint256[](length);

    for (uint256 i = 0; i < length; i++) ids[i] = _depositedIds[account].at(i);
    return ids;
  }

  function emergencyWithdraw(uint256[] memory tokenIds) external whenNotPaused{
    require(emergencyWithdrawEnabled, "Emergency withdraw not enabled");
    for(uint256 i = 0; i < tokenIds.length; i++){
      require(_depositedIds[msg.sender].contains(tokenIds[i]), "Query for a token you don't own");
      _depositedIds[msg.sender].remove(tokenIds[i]);
      delete _depositedBlocks[msg.sender][tokenIds[i]];
      stakingToken.safeTransferFrom(address(this), msg.sender, tokenIds[i]);
    }
  }

  /* -------------------------------------------------------------------------- */
  /*                                 Owner Logic                                */
  /* -------------------------------------------------------------------------- */

  /// @notice Set the new token rewards rate.
  /// @param newRate Emission rate in wei.
  function setRate(uint256 newRate) external onlyOwner {
    rate = newRate;
  }

  /// @notice Set the new token rewards rate.
  /// @param newRate2 Emission rate in wei.
  function setRate2(uint256 newRate2) external onlyOwner {
    rate2 = newRate2;
  }

  /// @notice Set the new token rewards end time.
  /// @param newEndTime End time of token 1 yield
  function setEndTime(uint256 newEndTime) external onlyOwner {
    endTime = newEndTime;
  }

  /// @notice Set the new token rewards end time.
  /// @param newEndTime2 End time of token 2 yield
  function setEndTime2(uint256 newEndTime2) external onlyOwner {
    endTime2 = newEndTime2;
  }

  /// @notice set rate modifier for given token Ids.
  /// @param tokenIds token Ids to set rate modifier for.
  /// @param rateModifier value of rate modifier
  function setRateModifier(uint256[] memory tokenIds, uint256 rateModifier) external onlyOwner {
    for (uint256 i = 0; i < tokenIds.length; i++) {
      _rateModifiers[tokenIds[i]] = rateModifier;
    }
  }

  /// @notice Set the new staking token contract address.
  /// @param newStakingToken Staking token address.
  function setStakingToken(address newStakingToken) external onlyOwner {
    stakingToken = ICKEY(newStakingToken);
  }

  /// @notice Set the new reward token contract address.
  /// @param newRewardToken Rewards token address.
  function setRewardToken(address newRewardToken) external onlyOwner {
    rewardToken = IFBX(newRewardToken);
  }

  /// @notice Set the new reward token contract address.
  /// @param newRewardToken2 Rewards token address.
  function setRewardToken2(address newRewardToken2) external onlyOwner {
    rewardToken2 = IWRLD(newRewardToken2);
  }

  /// @notice Pause the contract.
  function pause() external onlyOwner {
    _pause();
  }

  /// @notice Unpause the contract.
  function unpause() external onlyOwner {
    _unpause();
  }

  /// @notice Withdraw `amount` of `token` to the sender.
  function withdrawERC20(IERC20 token, uint256 amount) external onlyOwner {
    token.transfer(msg.sender, amount);
  }

  /// @notice enable emergency withdraw
  function setEmergencyWithdrawEnabled(bool newEmergencyWithdrawEnabled) external onlyOwner{
    emergencyWithdrawEnabled  = newEmergencyWithdrawEnabled;
  }
}

interface ICKEY {
  function transferFrom(
    address from,
    address to,
    uint256 id
  ) external;

  function safeTransferFrom(
    address from,
    address to,
    uint256 id
  ) external;
}

interface IFBX {
  function mint(address to, uint256 amount) external;

  function burn(address from, uint256 amount) external;
}

interface IWRLD {
  function transfer(address to, uint256 amount) external;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (security/Pausable.sol)

pragma solidity ^0.8.0;

import "../utils/Context.sol";

/**
 * @dev Contract module which allows children to implement an emergency stop
 * mechanism that can be triggered by an authorized account.
 *
 * This module is used through inheritance. It will make available the
 * modifiers `whenNotPaused` and `whenPaused`, which can be applied to
 * the functions of your contract. Note that they will not be pausable by
 * simply including this module, only once the modifiers are put in place.
 */
abstract contract Pausable is Context {
    /**
     * @dev Emitted when the pause is triggered by `account`.
     */
    event Paused(address account);

    /**
     * @dev Emitted when the pause is lifted by `account`.
     */
    event Unpaused(address account);

    bool private _paused;

    /**
     * @dev Initializes the contract in unpaused state.
     */
    constructor() {
        _paused = false;
    }

    /**
     * @dev Returns true if the contract is paused, and false otherwise.
     */
    function paused() public view virtual returns (bool) {
        return _paused;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is not paused.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    modifier whenNotPaused() {
        require(!paused(), "Pausable: paused");
        _;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is paused.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    modifier whenPaused() {
        require(paused(), "Pausable: not paused");
        _;
    }

    /**
     * @dev Triggers stopped state.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    function _pause() internal virtual whenNotPaused {
        _paused = true;
        emit Paused(_msgSender());
    }

    /**
     * @dev Returns to normal state.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    function _unpause() internal virtual whenPaused {
        _paused = false;
        emit Unpaused(_msgSender());
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (access/Ownable.sol)

pragma solidity ^0.8.0;

import "../utils/Context.sol";

/**
 * @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.
 *
 * By default, the owner account will be the one that deploys the contract. 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;

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

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor() {
        _transferOwnership(_msgSender());
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        _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);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (utils/math/Math.sol)

pragma solidity ^0.8.0;

/**
 * @dev Standard math utilities missing in the Solidity language.
 */
library Math {
    /**
     * @dev Returns the largest of two numbers.
     */
    function max(uint256 a, uint256 b) internal pure returns (uint256) {
        return a >= b ? a : b;
    }

    /**
     * @dev Returns the smallest of two numbers.
     */
    function min(uint256 a, uint256 b) internal pure returns (uint256) {
        return a < b ? a : b;
    }

    /**
     * @dev Returns the average of two numbers. The result is rounded towards
     * zero.
     */
    function average(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b) / 2 can overflow.
        return (a & b) + (a ^ b) / 2;
    }

    /**
     * @dev Returns the ceiling of the division of two numbers.
     *
     * This differs from standard division with `/` in that it rounds up instead
     * of rounding down.
     */
    function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b - 1) / b can overflow on addition, so we distribute.
        return a / b + (a % b == 0 ? 0 : 1);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/structs/EnumerableSet.sol)

pragma solidity ^0.8.0;

/**
 * @dev Library for managing
 * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive
 * types.
 *
 * Sets have the following properties:
 *
 * - Elements are added, removed, and checked for existence in constant time
 * (O(1)).
 * - Elements are enumerated in O(n). No guarantees are made on the ordering.
 *
 * ```
 * contract Example {
 *     // Add the library methods
 *     using EnumerableSet for EnumerableSet.AddressSet;
 *
 *     // Declare a set state variable
 *     EnumerableSet.AddressSet private mySet;
 * }
 * ```
 *
 * As of v3.3.0, sets of type `bytes32` (`Bytes32Set`), `address` (`AddressSet`)
 * and `uint256` (`UintSet`) are supported.
 */
library EnumerableSet {
    // To implement this library for multiple types with as little code
    // repetition as possible, we write it in terms of a generic Set type with
    // bytes32 values.
    // The Set implementation uses private functions, and user-facing
    // implementations (such as AddressSet) are just wrappers around the
    // underlying Set.
    // This means that we can only create new EnumerableSets for types that fit
    // in bytes32.

    struct Set {
        // Storage of set values
        bytes32[] _values;
        // Position of the value in the `values` array, plus 1 because index 0
        // means a value is not in the set.
        mapping(bytes32 => uint256) _indexes;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function _add(Set storage set, bytes32 value) private returns (bool) {
        if (!_contains(set, value)) {
            set._values.push(value);
            // The value is stored at length-1, but we add 1 to all indexes
            // and use 0 as a sentinel value
            set._indexes[value] = set._values.length;
            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function _remove(Set storage set, bytes32 value) private returns (bool) {
        // We read and store the value's index to prevent multiple reads from the same storage slot
        uint256 valueIndex = set._indexes[value];

        if (valueIndex != 0) {
            // Equivalent to contains(set, value)
            // To delete an element from the _values array in O(1), we swap the element to delete with the last one in
            // the array, and then remove the last element (sometimes called as 'swap and pop').
            // This modifies the order of the array, as noted in {at}.

            uint256 toDeleteIndex = valueIndex - 1;
            uint256 lastIndex = set._values.length - 1;

            if (lastIndex != toDeleteIndex) {
                bytes32 lastvalue = set._values[lastIndex];

                // Move the last value to the index where the value to delete is
                set._values[toDeleteIndex] = lastvalue;
                // Update the index for the moved value
                set._indexes[lastvalue] = valueIndex; // Replace lastvalue's index to valueIndex
            }

            // Delete the slot where the moved value was stored
            set._values.pop();

            // Delete the index for the deleted slot
            delete set._indexes[value];

            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function _contains(Set storage set, bytes32 value) private view returns (bool) {
        return set._indexes[value] != 0;
    }

    /**
     * @dev Returns the number of values on the set. O(1).
     */
    function _length(Set storage set) private view returns (uint256) {
        return set._values.length;
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function _at(Set storage set, uint256 index) private view returns (bytes32) {
        return set._values[index];
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function _values(Set storage set) private view returns (bytes32[] memory) {
        return set._values;
    }

    // Bytes32Set

    struct Bytes32Set {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(Bytes32Set storage set, bytes32 value) internal returns (bool) {
        return _add(set._inner, value);
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(Bytes32Set storage set, bytes32 value) internal returns (bool) {
        return _remove(set._inner, value);
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(Bytes32Set storage set, bytes32 value) internal view returns (bool) {
        return _contains(set._inner, value);
    }

    /**
     * @dev Returns the number of values in the set. O(1).
     */
    function length(Bytes32Set storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(Bytes32Set storage set, uint256 index) internal view returns (bytes32) {
        return _at(set._inner, index);
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function values(Bytes32Set storage set) internal view returns (bytes32[] memory) {
        return _values(set._inner);
    }

    // AddressSet

    struct AddressSet {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(AddressSet storage set, address value) internal returns (bool) {
        return _add(set._inner, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(AddressSet storage set, address value) internal returns (bool) {
        return _remove(set._inner, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(AddressSet storage set, address value) internal view returns (bool) {
        return _contains(set._inner, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Returns the number of values in the set. O(1).
     */
    function length(AddressSet storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(AddressSet storage set, uint256 index) internal view returns (address) {
        return address(uint160(uint256(_at(set._inner, index))));
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function values(AddressSet storage set) internal view returns (address[] memory) {
        bytes32[] memory store = _values(set._inner);
        address[] memory result;

        assembly {
            result := store
        }

        return result;
    }

    // UintSet

    struct UintSet {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(UintSet storage set, uint256 value) internal returns (bool) {
        return _add(set._inner, bytes32(value));
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(UintSet storage set, uint256 value) internal returns (bool) {
        return _remove(set._inner, bytes32(value));
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(UintSet storage set, uint256 value) internal view returns (bool) {
        return _contains(set._inner, bytes32(value));
    }

    /**
     * @dev Returns the number of values on the set. O(1).
     */
    function length(UintSet storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(UintSet storage set, uint256 index) internal view returns (uint256) {
        return uint256(_at(set._inner, index));
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function values(UintSet storage set) internal view returns (uint256[] memory) {
        bytes32[] memory store = _values(set._inner);
        uint256[] memory result;

        assembly {
            result := store
        }

        return result;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the amount of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves `amount` 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 amount) 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 `amount` 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 amount) external returns (bool);

    /**
     * @dev Moves `amount` tokens from `from` to `to` using the
     * allowance mechanism. `amount` 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 amount
    ) external returns (bool);

    /**
     * @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);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)

pragma solidity ^0.8.0;

/**
 * @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;
    }
}

{
  "optimizer": {
    "enabled": true,
    "runs": 512
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"address","name":"newStakingToken","type":"address"},{"internalType":"address","name":"newRewardToken","type":"address"},{"internalType":"address","name":"newRewardToken2","type":"address"},{"internalType":"uint256","name":"newRate","type":"uint256"},{"internalType":"uint256","name":"newRate2","type":"uint256"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Paused","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Unpaused","type":"event"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"uint256","name":"","type":"uint256"}],"name":"_depositedBlocks","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"_rateModifiers","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"claim","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256[]","name":"tokenIds","type":"uint256[]"}],"name":"deposit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"depositsOf","outputs":[{"internalType":"uint256[]","name":"","type":"uint256[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"earned","outputs":[{"internalType":"uint256[]","name":"","type":"uint256[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"earned2","outputs":[{"internalType":"uint256[]","name":"","type":"uint256[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256[]","name":"tokenIds","type":"uint256[]"}],"name":"emergencyWithdraw","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"emergencyWithdrawEnabled","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"endTime","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"endTime2","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"pause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"paused","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"rate","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"rate2","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"rewardToken","outputs":[{"internalType":"contract IFBX","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"rewardToken2","outputs":[{"internalType":"contract IWRLD","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bool","name":"newEmergencyWithdrawEnabled","type":"bool"}],"name":"setEmergencyWithdrawEnabled","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"newEndTime","type":"uint256"}],"name":"setEndTime","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"newEndTime2","type":"uint256"}],"name":"setEndTime2","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"newRate","type":"uint256"}],"name":"setRate","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"newRate2","type":"uint256"}],"name":"setRate2","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256[]","name":"tokenIds","type":"uint256[]"},{"internalType":"uint256","name":"rateModifier","type":"uint256"}],"name":"setRateModifier","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newRewardToken","type":"address"}],"name":"setRewardToken","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newRewardToken2","type":"address"}],"name":"setRewardToken2","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newStakingToken","type":"address"}],"name":"setStakingToken","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"stakingToken","outputs":[{"internalType":"contract ICKEY","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"unpause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256[]","name":"tokenIds","type":"uint256[]"}],"name":"withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract IERC20","name":"token","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"withdrawERC20","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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0000000000000000000000008328f8d228450a9662bfedd526c25278dfbf5e9d00000000000000000000000006e91888dac29234d6de8507087ed7ef046335f5000000000000000000000000d5d86fc8d5c0ea1ac1ac5dfab6e529c9967a45e90000000000000000000000000000000000000000000000022b1c8c1227a000000000000000000000000000000000000000000000000000002501e734690aaaaa

-----Decoded View---------------
Arg [0] : newStakingToken (address): 0x8328F8d228450A9662BfEdd526c25278DfBF5e9d
Arg [1] : newRewardToken (address): 0x06e91888dAc29234d6DE8507087eD7eF046335F5
Arg [2] : newRewardToken2 (address): 0xD5d86FC8d5C0Ea1aC1Ac5Dfab6E529c9967a45E9
Arg [3] : newRate (uint256): 40000000000000000000
Arg [4] : newRate2 (uint256): 2666666666666666666

-----Encoded View---------------
5 Constructor Arguments found :
Arg [0] : 0000000000000000000000008328f8d228450a9662bfedd526c25278dfbf5e9d
Arg [1] : 00000000000000000000000006e91888dac29234d6de8507087ed7ef046335f5
Arg [2] : 000000000000000000000000d5d86fc8d5c0ea1ac1ac5dfab6e529c9967a45e9
Arg [3] : 0000000000000000000000000000000000000000000000022b1c8c1227a00000
Arg [4] : 0000000000000000000000000000000000000000000000002501e734690aaaaa