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//SPDX-License-Identifier: Unlicense
pragma solidity ^0.8.0;

// ______  __  __   ______       _____    __  __   _____    ______
// /\__  _\/\ \_\ \ /\  ___\     /\  __-. /\ \/\ \ /\  __-. /\  ___\
// \/_/\ \/\ \  __ \\ \  __\     \ \ \/\ \\ \ \_\ \\ \ \/\ \\ \  __\
//   \ \_\ \ \_\ \_\\ \_____\    \ \____- \ \_____\\ \____- \ \_____\
//    \/_/  \/_/\/_/ \/_____/     \/____/  \/_____/ \/____/  \/_____/
//

import "./../core/CoreRewarder.sol";

contract TheDudesRewarder is CoreRewarder {
    constructor(
        address targetAddress,
        address rewardAddress,
        uint256 rewardRate,
        uint256 rewardFrequency,
        uint256 initialReward,
        uint256 boostRate
    )
        CoreRewarder(
            targetAddress,
            rewardAddress,
            rewardRate,
            rewardFrequency,
            initialReward,
            boostRate
        )
    {}
}

//SPDX-License-Identifier: Unlicense
pragma solidity ^0.8.0;

// ______  __  __   ______       _____    __  __   _____    ______
// /\__  _\/\ \_\ \ /\  ___\     /\  __-. /\ \/\ \ /\  __-. /\  ___\
// \/_/\ \/\ \  __ \\ \  __\     \ \ \/\ \\ \ \_\ \\ \ \/\ \\ \  __\
//   \ \_\ \ \_\ \_\\ \_____\    \ \____- \ \_____\\ \____- \ \_____\
//    \/_/  \/_/\/_/ \/_____/     \/____/  \/_____/ \/____/  \/_____/
//

import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/token/ERC721/IERC721.sol";

import "./CoreStaking.sol";
import "./../../common/interfaces/ICoreRewarder.sol";
import "./../../common/interfaces/ICollection.sol";
import "./../../common/interfaces/IINT.sol";

contract CoreRewarder is ICoreRewarder, CoreStaking, Ownable {
    struct TokenStatus {
        uint128 lastClaimTime;
        uint128 pendingReward;
    }

    bool public isStakingEnabled;
    bool public isClaimingEnabled;

    address public immutable rewardAddress;
    uint256 public immutable rewardRate;
    uint256 public immutable rewardFrequency;
    uint256 public immutable initialReward;

    uint256 public startTime;
    uint256 public finishTime;

    mapping(uint256 => TokenStatus) public tokenStatusses;

    constructor(
        address _targetAddress,
        address _rewardAddress,
        uint256 _rewardRate,
        uint256 _rewardFrequency,
        uint256 _initialReward,
        uint256 _boostRate
    ) CoreStaking(_targetAddress, _boostRate) {
        rewardAddress = _rewardAddress;
        rewardRate = _rewardRate;
        rewardFrequency = _rewardFrequency;
        initialReward = _initialReward;
    }

    // OWNER CONTROLS

    function setStartTime(uint256 _startTime) external onlyOwner {
        require(startTime == 0, "Start time is already set");
        startTime = _startTime;
    }

    function start() external onlyOwner {
        require(startTime == 0, "Start time is already set");
        startTime = block.timestamp;
    }

    function setFinishTime(uint256 _finishTime) external onlyOwner {
        finishTime = _finishTime;
    }

    function finish() external onlyOwner {
        finishTime = block.timestamp;
    }

    function setIsStakingEnabled(bool _isStakingEnabled) external onlyOwner {
        isStakingEnabled = _isStakingEnabled;
    }

    function setIsClaimingEnabled(bool _isClaimingEnabled) external onlyOwner {
        isClaimingEnabled = _isClaimingEnabled;
    }

    // PUBLIC - CONTROLS

    function stake(uint256[] calldata tokenIds) external override {
        require(isStakingEnabled, "Stakig is not enabled");
        if (_isRewardingStarted(startTime)) {
            _updatePendingRewards(msg.sender, tokenIds);
        }
        _stake(msg.sender, tokenIds);
    }

    function withdraw(uint256[] calldata tokenIds) external override {
        if (_isRewardingStarted(startTime)) {
            _updatePendingRewards(msg.sender, tokenIds);
        }
        _withdraw(msg.sender, tokenIds);
    }

    function claim(uint256[] calldata tokenIds) external override {
        require(isClaimingEnabled, "Claiming is not enabled");
        _claim(msg.sender, tokenIds);
    }

    function earned(uint256[] calldata tokenIds)
        external
        view
        override
        returns (uint256)
    {
        if (!_isRewardingStarted(startTime)) {
            return initialReward * tokenIds.length;
        }
        return _earnedRewards(tokenIds);
    }

    // PUBLIC - UTILITY

    function lastClaimTimesOfTokens(uint256[] memory tokenIds)
        external
        view
        override
        returns (uint256[] memory)
    {
        uint256[] memory _lastClaimTimesOfTokens = new uint256[](
            tokenIds.length
        );
        for (uint256 i = 0; i < tokenIds.length; i++) {
            _lastClaimTimesOfTokens[i] = tokenStatusses[tokenIds[i]]
                .lastClaimTime;
        }
        return _lastClaimTimesOfTokens;
    }

    function isOwner(address owner, uint256 tokenId)
        external
        view
        override
        returns (bool)
    {
        return _isOwner(owner, tokenId);
    }

    function stakedTokensOfOwner(address owner)
        external
        view
        override
        returns (uint256[] memory)
    {
        return _stakedTokensOfOwner[owner];
    }

    function tokensOfOwner(address owner)
        external
        view
        override
        returns (uint256[] memory)
    {
        uint256[] memory tokenIds = ICollection(targetAddress).tokensOfOwner(
            owner
        );
        uint256[] memory stakedTokensIds = _stakedTokensOfOwner[owner];
        uint256[] memory mergedTokenIds = new uint256[](
            tokenIds.length + stakedTokensIds.length
        );
        for (uint256 i = 0; i < tokenIds.length; i++) {
            mergedTokenIds[i] = tokenIds[i];
        }
        for (uint256 i = 0; i < stakedTokensIds.length; i++) {
            mergedTokenIds[i + tokenIds.length] = stakedTokensIds[i];
        }
        return mergedTokenIds;
    }

    // INTERNAL

    function _claim(address _owner, uint256[] memory _tokenIds) internal {
        uint256 rewardAmount = _earnedRewards(_tokenIds);
        _resetPendingRewards(_owner, _tokenIds);

        require(rewardAmount != 0, "Can't claim 0 rewards");

        emit RewardClaimed(_owner, rewardAmount);
        IINT(rewardAddress).mint(_owner, rewardAmount);
    }

    function _updatePendingRewards(address _owner, uint256[] memory _tokenIds)
        internal
    {
        uint256 _startTime = startTime;
        uint256 _currentTime = _fixedCurrentTime();

        for (uint256 i = 0; i < _tokenIds.length; i++) {
            require(
                _isOwner(_owner, _tokenIds[i]),
                "You need to own this token"
            );

            TokenStatus memory status = tokenStatusses[_tokenIds[i]];
            status.pendingReward += uint128(
                _earnedTokenReward(_tokenIds[i], _startTime, _currentTime)
            );
            status.lastClaimTime = uint128(_currentTime);
            tokenStatusses[_tokenIds[i]] = status;
        }
    }

    function _resetPendingRewards(address _owner, uint256[] memory _tokenIds)
        internal
    {
        uint256 _currentTime = _fixedCurrentTime();

        for (uint256 i = 0; i < _tokenIds.length; i++) {
            require(
                _isOwner(_owner, _tokenIds[i]),
                "You need to own this token"
            );

            TokenStatus memory status = tokenStatusses[_tokenIds[i]];
            status.pendingReward = 0;
            status.lastClaimTime = uint128(_currentTime);
            tokenStatusses[_tokenIds[i]] = status;
        }
    }

    function _earnedRewards(uint256[] memory _tokenIds)
        internal
        view
        returns (uint256)
    {
        uint256 _startTime = startTime;
        uint256 _currentTime = _fixedCurrentTime();
        uint256 rewardAmount;

        for (uint256 i = 0; i < _tokenIds.length; i++) {
            rewardAmount += _earnedTokenReward(
                _tokenIds[i],
                _startTime,
                _currentTime
            );
            rewardAmount += tokenStatusses[_tokenIds[i]].pendingReward;
        }
        return rewardAmount;
    }

    function _earnedTokenReward(
        uint256 _tokenId,
        uint256 _startTime,
        uint256 _currentTime
    ) internal view returns (uint256) {
        uint256 _lastClaimTimeOfToken = tokenStatusses[_tokenId].lastClaimTime;
        uint256 fixedLastClaimTimeOfToken = _fixedLastClaimTimeOfToken(
            _startTime,
            _lastClaimTimeOfToken
        );

        uint256 multiplier = _stakingMultiplierForToken(_tokenId);
        uint256 amount = ((_currentTime - fixedLastClaimTimeOfToken) /
            rewardFrequency) *
            rewardRate *
            multiplier *
            1e18;

        if (_lastClaimTimeOfToken == 0) {
            return amount + initialReward;
        }

        return amount;
    }

    function _isRewardingStarted(uint256 _startTime)
        internal
        view
        returns (bool)
    {
        if (_startTime != 0 && _startTime < block.timestamp) {
            return true;
        }
        return false;
    }

    function _fixedLastClaimTimeOfToken(
        uint256 _startTime,
        uint256 _lastClaimTimeOfToken
    ) internal pure returns (uint256) {
        if (_startTime > _lastClaimTimeOfToken) {
            return _startTime;
        }
        return _lastClaimTimeOfToken;
    }

    function _fixedCurrentTime() internal view returns (uint256) {
        uint256 period = (block.timestamp - startTime) / rewardFrequency;
        uint256 currentTime = startTime + rewardFrequency * period;
        if (finishTime != 0 && finishTime < currentTime) {
            return finishTime;
        }
        return currentTime;
    }

    function _isOwner(address _owner, uint256 _tokenId)
        internal
        view
        returns (bool)
    {
        if (stakedTokenOwners[_tokenId] == _owner) {
            return true;
        }
        return IERC721(targetAddress).ownerOf(_tokenId) == _owner;
    }

    // EVENTS
    event RewardClaimed(address indexed user, uint256 reward);
}

// 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 v4.4.1 (token/ERC721/IERC721.sol)

pragma solidity ^0.8.0;

import "../../utils/introspection/IERC165.sol";

/**
 * @dev Required interface of an ERC721 compliant contract.
 */
interface IERC721 is IERC165 {
    /**
     * @dev Emitted when `tokenId` token is transferred from `from` to `to`.
     */
    event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
     */
    event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
     */
    event ApprovalForAll(address indexed owner, address indexed operator, bool approved);

    /**
     * @dev Returns the number of tokens in ``owner``'s account.
     */
    function balanceOf(address owner) external view returns (uint256 balance);

    /**
     * @dev Returns the owner of the `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function ownerOf(uint256 tokenId) external view returns (address owner);

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
     * are aware of the ERC721 protocol to prevent tokens from being forever locked.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external;

    /**
     * @dev Transfers `tokenId` token from `from` to `to`.
     *
     * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external;

    /**
     * @dev Gives permission to `to` to transfer `tokenId` token to another account.
     * The approval is cleared when the token is transferred.
     *
     * Only a single account can be approved at a time, so approving the zero address clears previous approvals.
     *
     * Requirements:
     *
     * - The caller must own the token or be an approved operator.
     * - `tokenId` must exist.
     *
     * Emits an {Approval} event.
     */
    function approve(address to, uint256 tokenId) external;

    /**
     * @dev Returns the account approved for `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function getApproved(uint256 tokenId) external view returns (address operator);

    /**
     * @dev Approve or remove `operator` as an operator for the caller.
     * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
     *
     * Requirements:
     *
     * - The `operator` cannot be the caller.
     *
     * Emits an {ApprovalForAll} event.
     */
    function setApprovalForAll(address operator, bool _approved) external;

    /**
     * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
     *
     * See {setApprovalForAll}
     */
    function isApprovedForAll(address owner, address operator) external view returns (bool);

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId,
        bytes calldata data
    ) external;
}

//SPDX-License-Identifier: Unlicense
pragma solidity ^0.8.0;

// ______  __  __   ______       _____    __  __   _____    ______
// /\__  _\/\ \_\ \ /\  ___\     /\  __-. /\ \/\ \ /\  __-. /\  ___\
// \/_/\ \/\ \  __ \\ \  __\     \ \ \/\ \\ \ \_\ \\ \ \/\ \\ \  __\
//   \ \_\ \ \_\ \_\\ \_____\    \ \____- \ \_____\\ \____- \ \_____\
//    \/_/  \/_/\/_/ \/_____/     \/____/  \/_____/ \/____/  \/_____/
//

import "@openzeppelin/contracts/token/ERC721/IERC721.sol";
import "@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol";

contract CoreStaking is IERC721Receiver {
    address public immutable targetAddress;
    uint256 public immutable boostRate;

    mapping(address => uint256[]) internal _stakedTokensOfOwner;
    mapping(uint256 => address) public stakedTokenOwners;

    constructor(address _targetAddress, uint256 _boostRate) {
        targetAddress = _targetAddress;
        boostRate = _boostRate;
    }

    // ERC721 Receiever

    function onERC721Received(
        address,
        address,
        uint256,
        bytes calldata
    ) public pure override returns (bytes4) {
        return this.onERC721Received.selector;
    }

    // INTERNAL

    function _stake(address _owner, uint256[] calldata tokenIds) internal {
        IERC721 target = IERC721(targetAddress);

        for (uint256 i = 0; i < tokenIds.length; i++) {
            uint256 tokenId = tokenIds[i];
            stakedTokenOwners[tokenId] = _owner;
            _stakedTokensOfOwner[_owner].push(tokenId);
            target.safeTransferFrom(_owner, address(this), tokenId);
        }

        emit Staked(_owner, tokenIds);
    }

    function _withdraw(address _owner, uint256[] calldata tokenIds) internal {
        IERC721 target = IERC721(targetAddress);

        for (uint256 i = 0; i < tokenIds.length; i++) {
            uint256 tokenId = tokenIds[i];
            require(
                stakedTokenOwners[tokenId] == _owner,
                "You must own the token."
            );

            stakedTokenOwners[tokenId] = address(0);

            // Remove tokenId from the user staked tokenId list
            uint256[] memory newStakedTokensOfOwner = _stakedTokensOfOwner[
                _owner
            ];
            for (uint256 q = 0; q < newStakedTokensOfOwner.length; q++) {
                if (newStakedTokensOfOwner[q] == tokenId) {
                    newStakedTokensOfOwner[q] = newStakedTokensOfOwner[
                        newStakedTokensOfOwner.length - 1
                    ];
                }
            }

            _stakedTokensOfOwner[_owner] = newStakedTokensOfOwner;
            _stakedTokensOfOwner[_owner].pop();

            target.safeTransferFrom(address(this), _owner, tokenId);
        }

        emit Withdrawn(_owner, tokenIds);
    }

    function _stakingMultiplierForToken(uint256 _tokenId)
        internal
        view
        returns (uint256)
    {
        return stakedTokenOwners[_tokenId] != address(0) ? boostRate : 1;
    }

    // EVENTS

    event Staked(address indexed user, uint256[] tokenIds);
    event Withdrawn(address indexed user, uint256[] tokenIds);
}

//SPDX-License-Identifier: Unlicense
pragma solidity ^0.8.0;

// ______  __  __   ______       _____    __  __   _____    ______
// /\__  _\/\ \_\ \ /\  ___\     /\  __-. /\ \/\ \ /\  __-. /\  ___\
// \/_/\ \/\ \  __ \\ \  __\     \ \ \/\ \\ \ \_\ \\ \ \/\ \\ \  __\
//   \ \_\ \ \_\ \_\\ \_____\    \ \____- \ \_____\\ \____- \ \_____\
//    \/_/  \/_/\/_/ \/_____/     \/____/  \/_____/ \/____/  \/_____/
//

interface ICoreRewarder {
    function stake(
        uint256[] calldata tokenIds
    ) external;

    function withdraw(
        uint256[] calldata tokenIds
    ) external;

    function claim(uint256[] calldata tokenIds) external;

    function earned(uint256[] memory tokenIds)
        external
        view
        returns (uint256);

    function lastClaimTimesOfTokens(uint256[] memory tokenIds)
        external
        view
        returns (uint256[] memory);

    function isOwner(address owner, uint256 tokenId)
        external
        view
        returns (bool);

    function tokensOfOwner(address _owner)
        external
        view
        returns (uint256[] memory);

    function stakedTokensOfOwner(address owner)
        external
        view
        returns (uint256[] memory);
}

//SPDX-License-Identifier: Unlicense
pragma solidity ^0.8.0;

// ______  __  __   ______       _____    __  __   _____    ______
// /\__  _\/\ \_\ \ /\  ___\     /\  __-. /\ \/\ \ /\  __-. /\  ___\
// \/_/\ \/\ \  __ \\ \  __\     \ \ \/\ \\ \ \_\ \\ \ \/\ \\ \  __\
//   \ \_\ \ \_\ \_\\ \_____\    \ \____- \ \_____\\ \____- \ \_____\
//    \/_/  \/_/\/_/ \/_____/     \/____/  \/_____/ \/____/  \/_____/
//

interface ICollection {
    function balanceOf(address owner) external view returns (uint256 balance);

    function ownerOf(uint256 tokenId) external view returns (address owner);

    function tokensOfOwner(address _owner)
        external
        view
        returns (uint256[] memory);
}

//SPDX-License-Identifier: Unlicense
pragma solidity ^0.8.0;

// ______  __  __   ______       _____    __  __   _____    ______
// /\__  _\/\ \_\ \ /\  ___\     /\  __-. /\ \/\ \ /\  __-. /\  ___\
// \/_/\ \/\ \  __ \\ \  __\     \ \ \/\ \\ \ \_\ \\ \ \/\ \\ \  __\
//   \ \_\ \ \_\ \_\\ \_____\    \ \____- \ \_____\\ \____- \ \_____\
//    \/_/  \/_/\/_/ \/_____/     \/____/  \/_____/ \/____/  \/_____/
//

interface IINT {
    function totalSupply() external view returns (uint256);

    function balanceOf(address account) external view returns (uint256);

    function transfer(address to, 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 from,
        address to,
        uint256 amount
    ) external returns (bool);

    function mint(address to, uint256 amount) external;

    function burnFrom(address account, uint256 amount) external;
}

// 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;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[EIP].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface IERC165 {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721Receiver.sol)

pragma solidity ^0.8.0;

/**
 * @title ERC721 token receiver interface
 * @dev Interface for any contract that wants to support safeTransfers
 * from ERC721 asset contracts.
 */
interface IERC721Receiver {
    /**
     * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
     * by `operator` from `from`, this function is called.
     *
     * It must return its Solidity selector to confirm the token transfer.
     * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.
     *
     * The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`.
     */
    function onERC721Received(
        address operator,
        address from,
        uint256 tokenId,
        bytes calldata data
    ) external returns (bytes4);
}

{
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"address","name":"targetAddress","type":"address"},{"internalType":"address","name":"rewardAddress","type":"address"},{"internalType":"uint256","name":"rewardRate","type":"uint256"},{"internalType":"uint256","name":"rewardFrequency","type":"uint256"},{"internalType":"uint256","name":"initialReward","type":"uint256"},{"internalType":"uint256","name":"boostRate","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":true,"internalType":"address","name":"user","type":"address"},{"indexed":false,"internalType":"uint256","name":"reward","type":"uint256"}],"name":"RewardClaimed","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":false,"internalType":"uint256[]","name":"tokenIds","type":"uint256[]"}],"name":"Staked","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":false,"internalType":"uint256[]","name":"tokenIds","type":"uint256[]"}],"name":"Withdrawn","type":"event"},{"inputs":[],"name":"boostRate","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256[]","name":"tokenIds","type":"uint256[]"}],"name":"claim","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256[]","name":"tokenIds","type":"uint256[]"}],"name":"earned","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"finish","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"finishTime","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"initialReward","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"isClaimingEnabled","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"isOwner","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"isStakingEnabled","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256[]","name":"tokenIds","type":"uint256[]"}],"name":"lastClaimTimesOfTokens","outputs":[{"internalType":"uint256[]","name":"","type":"uint256[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"},{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"bytes","name":"","type":"bytes"}],"name":"onERC721Received","outputs":[{"internalType":"bytes4","name":"","type":"bytes4"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"rewardAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"rewardFrequency","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"rewardRate","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_finishTime","type":"uint256"}],"name":"setFinishTime","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"_isClaimingEnabled","type":"bool"}],"name":"setIsClaimingEnabled","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"_isStakingEnabled","type":"bool"}],"name":"setIsStakingEnabled","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_startTime","type":"uint256"}],"name":"setStartTime","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256[]","name":"tokenIds","type":"uint256[]"}],"name":"stake","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"stakedTokenOwners","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"stakedTokensOfOwner","outputs":[{"internalType":"uint256[]","name":"","type":"uint256[]"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"start","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"startTime","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"targetAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"tokenStatusses","outputs":[{"internalType":"uint128","name":"lastClaimTime","type":"uint128"},{"internalType":"uint128","name":"pendingReward","type":"uint128"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"tokensOfOwner","outputs":[{"internalType":"uint256[]","name":"","type":"uint256[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256[]","name":"tokenIds","type":"uint256[]"}],"name":"withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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000000000000000000000000b0cf7da8dc482997525be8488b9cad4f44315422000000000000000000000000f011dac919a751dff6343553aa031b9f8e95300f000000000000000000000000000000000000000000000000000000000000000a0000000000000000000000000000000000000000000000000000000000015180000000000000000000000000000000000000000000000008ac7230489e8000000000000000000000000000000000000000000000000000000000000000000002

-----Decoded View---------------
Arg [0] : targetAddress (address): 0xB0cf7Da8dc482997525BE8488B9caD4F44315422
Arg [1] : rewardAddress (address): 0xf011DaC919a751dfF6343553aA031B9f8E95300F
Arg [2] : rewardRate (uint256): 10
Arg [3] : rewardFrequency (uint256): 86400
Arg [4] : initialReward (uint256): 160000000000000000000
Arg [5] : boostRate (uint256): 2

-----Encoded View---------------
6 Constructor Arguments found :
Arg [0] : 000000000000000000000000b0cf7da8dc482997525be8488b9cad4f44315422
Arg [1] : 000000000000000000000000f011dac919a751dff6343553aa031b9f8e95300f
Arg [2] : 000000000000000000000000000000000000000000000000000000000000000a
Arg [3] : 0000000000000000000000000000000000000000000000000000000000015180
Arg [4] : 000000000000000000000000000000000000000000000008ac7230489e800000
Arg [5] : 0000000000000000000000000000000000000000000000000000000000000002