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// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;
import "@openzeppelin/contracts/token/ERC721/IERC721.sol";
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts/security/ReentrancyGuard.sol";
import "@openzeppelin/contracts/utils/Strings.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/utils/cryptography/MerkleProof.sol";

contract StakingContract is Ownable, ReentrancyGuard {
    using Strings for uint256;

    address public rtoken;
    address public nftAddress;
    
    struct UserInfo {
        uint256 tokenId;
        uint256 rarity;
        uint256 startTime;
    }
    
    mapping(address => UserInfo[]) public userInfo;
    mapping(address => uint256) public stakingAmount;

    event Stake(address indexed user, uint256 amount);
    event UnStake(address indexed user, uint256 amount);

    bytes32[5] public rarityMerkleRoot;
    uint256[5] public rewardTokenPerDay;

    constructor(address _rTokenAddress, address _nftTokenAddress, bytes32[] memory _rarityMerkleRoot, uint256[] memory _rewardTokenPerDay) {
        rtoken = _rTokenAddress;
        nftAddress = _nftTokenAddress;

        for(uint256 i = 0; i < _rarityMerkleRoot.length; i++) {
            rarityMerkleRoot[i] = _rarityMerkleRoot[i];
        }
        for(uint256 i = 0; i < _rewardTokenPerDay.length; i++) {
            rewardTokenPerDay[i] = _rewardTokenPerDay[i] * 1 ether;
        }
    }

    function updateRarityMerkleRoots(bytes32[] memory _rarityMerkleRoot) public onlyOwner() {
        for(uint256 i = 0; i < _rarityMerkleRoot.length; i++) {
            rarityMerkleRoot[i] = _rarityMerkleRoot[i];
        }
    }

    function changeRewardTokenAddress(address _rewardTokenAddress) public onlyOwner {
        rtoken = _rewardTokenAddress;
    }

    function changeNftTokenAddress(address _nftTokenAddress) public onlyOwner {
        nftAddress = _nftTokenAddress;
    }

    function changeRewardTokenPerDay(uint256[] memory _rewardTokenPerDay) public onlyOwner {
        for(uint256 i = 0; i < 5; i++)  
            rewardTokenPerDay[i] = _rewardTokenPerDay[i];
    }

    function approve(address tokenAddress, address spender, uint256 amount) public onlyOwner returns (bool) {
      IERC20(tokenAddress).approve(spender, amount);
      return true;
    }

    function pendingReward(address _user, uint256 _tokenId, uint256 _rarity) public view returns (uint256) {

        (bool _isStaked, uint256 _startTime) = getStakingItemInfo(_user, _tokenId);
        if(!_isStaked) return 0;

        uint256 currentTime = block.timestamp;        
        uint256 rewardAmount = rewardTokenPerDay[_rarity] * (currentTime - _startTime) / 1 days;
        return rewardAmount;
    }

    function pendingTotalReward(address _user) public view returns(uint256) {
        uint256 pending = 0;
        for (uint256 i = 0; i < userInfo[_user].length; i++) {
            uint256 temp = pendingReward(_user, userInfo[_user][i].tokenId, userInfo[_user][i].rarity);
            pending = pending + temp;
        }
        return pending;
    }

    function getRarity(bytes32[] calldata _merkleProof, uint256 _tokenId) public view returns(uint256) {
        bytes32 leaf = keccak256(abi.encodePacked(_tokenId.toString()));
        for(uint256 i = 0; i < 5; i++) {
            if(MerkleProof.verify(_merkleProof, rarityMerkleRoot[i], leaf)) {
                return i;
            }
        }
        return 5;
    }

    function stake(uint256[] memory tokenIds, bytes32[][] calldata _merkleProofs) public {
        for(uint256 i = 0; i < tokenIds.length; i++) {
            (bool _isStaked,) = getStakingItemInfo(msg.sender, tokenIds[i]);
            if(_isStaked) continue;
            require(IERC721(nftAddress).ownerOf(tokenIds[i]) == msg.sender, "Not your NFT");

            IERC721(nftAddress).transferFrom(address(msg.sender), address(this), tokenIds[i]);

            uint256 _rarity = getRarity(_merkleProofs[i], tokenIds[i]);
            require(_rarity < 5, "Invalid in merkleproof");

            UserInfo memory info;
            info.tokenId = tokenIds[i];
            info.rarity = _rarity;
            info.startTime = block.timestamp;

            userInfo[msg.sender].push(info);
            stakingAmount[msg.sender] = stakingAmount[msg.sender] + 1;
            emit Stake(msg.sender, 1);
        }
    }

    function unstake(uint256[] memory tokenIds) public nonReentrant {
        require(tokenIds.length > 0, "Token number to unstake is zero.");
        uint256 pending = pendingTotalReward(msg.sender);
        if(pending > 0) {
            IERC20(rtoken).transfer(msg.sender, pending);
        }

        for(uint256 i = 0; i < tokenIds.length; i++) {
            (bool _isStaked,) = getStakingItemInfo(msg.sender, tokenIds[i]);
            if(!_isStaked) continue;
            if(IERC721(nftAddress).ownerOf(tokenIds[i]) != address(this)) continue;

            removeFromUserInfo(tokenIds[i]);
            if(stakingAmount[msg.sender] > 0)
                stakingAmount[msg.sender] = stakingAmount[msg.sender] - 1;
            IERC721(nftAddress).transferFrom(address(this), msg.sender, tokenIds[i]);
            emit UnStake(msg.sender, 1);
        }
    }

    function getStakingItemInfo(address _user, uint256 _tokenId) public view returns(bool _isStaked, uint256 _startTime) {
        for(uint256 i = 0; i < userInfo[_user].length; i++) {
            if(userInfo[_user][i].tokenId == _tokenId) {
                _isStaked = true;
                _startTime = userInfo[_user][i].startTime;
                break;
            }
        }
    }

    function removeFromUserInfo(uint256 tokenId) private {        
        for (uint256 i = 0; i < userInfo[msg.sender].length; i++) {
            if (userInfo[msg.sender][i].tokenId == tokenId) {
                userInfo[msg.sender][i] = userInfo[msg.sender][userInfo[msg.sender].length - 1];
                userInfo[msg.sender].pop();
                break;
            }
        }        
    }

    function claim() public {

        uint256 reward = pendingTotalReward(msg.sender);

        for (uint256 i = 0; i < userInfo[msg.sender].length; i++)
            userInfo[msg.sender][i].startTime = block.timestamp;

        IERC20(rtoken).transfer(msg.sender, reward);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (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`.
     *
     * 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;

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

    /**
     * @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);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
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 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);
}

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

pragma solidity ^0.8.0;

/**
 * @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;

    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() {
        // On the first call to nonReentrant, _notEntered will be true
        require(_status != _ENTERED, "ReentrancyGuard: reentrant call");

        // Any calls to nonReentrant after this point will fail
        _status = _ENTERED;

        _;

        // By storing the original value once again, a refund is triggered (see
        // https://eips.ethereum.org/EIPS/eip-2200)
        _status = _NOT_ENTERED;
    }
}

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

pragma solidity ^0.8.0;

/**
 * @dev String operations.
 */
library Strings {
    bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef";

    /**
     * @dev Converts a `uint256` to its ASCII `string` decimal representation.
     */
    function toString(uint256 value) internal pure returns (string memory) {
        // Inspired by OraclizeAPI's implementation - MIT licence
        // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol

        if (value == 0) {
            return "0";
        }
        uint256 temp = value;
        uint256 digits;
        while (temp != 0) {
            digits++;
            temp /= 10;
        }
        bytes memory buffer = new bytes(digits);
        while (value != 0) {
            digits -= 1;
            buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
            value /= 10;
        }
        return string(buffer);
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
     */
    function toHexString(uint256 value) internal pure returns (string memory) {
        if (value == 0) {
            return "0x00";
        }
        uint256 temp = value;
        uint256 length = 0;
        while (temp != 0) {
            length++;
            temp >>= 8;
        }
        return toHexString(value, length);
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
     */
    function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
        bytes memory buffer = new bytes(2 * length + 2);
        buffer[0] = "0";
        buffer[1] = "x";
        for (uint256 i = 2 * length + 1; i > 1; --i) {
            buffer[i] = _HEX_SYMBOLS[value & 0xf];
            value >>= 4;
        }
        require(value == 0, "Strings: hex length insufficient");
        return string(buffer);
    }
}

// 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 v4.6.0) (utils/cryptography/MerkleProof.sol)

pragma solidity ^0.8.0;

/**
 * @dev These functions deal with verification of Merkle Trees proofs.
 *
 * The proofs can be generated using the JavaScript library
 * https://github.com/miguelmota/merkletreejs[merkletreejs].
 * Note: the hashing algorithm should be keccak256 and pair sorting should be enabled.
 *
 * See `test/utils/cryptography/MerkleProof.test.js` for some examples.
 *
 * WARNING: You should avoid using leaf values that are 64 bytes long prior to
 * hashing, or use a hash function other than keccak256 for hashing leaves.
 * This is because the concatenation of a sorted pair of internal nodes in
 * the merkle tree could be reinterpreted as a leaf value.
 */
library MerkleProof {
    /**
     * @dev Returns true if a `leaf` can be proved to be a part of a Merkle tree
     * defined by `root`. For this, a `proof` must be provided, containing
     * sibling hashes on the branch from the leaf to the root of the tree. Each
     * pair of leaves and each pair of pre-images are assumed to be sorted.
     */
    function verify(
        bytes32[] memory proof,
        bytes32 root,
        bytes32 leaf
    ) internal pure returns (bool) {
        return processProof(proof, leaf) == root;
    }

    /**
     * @dev Returns the rebuilt hash obtained by traversing a Merkle tree up
     * from `leaf` using `proof`. A `proof` is valid if and only if the rebuilt
     * hash matches the root of the tree. When processing the proof, the pairs
     * of leafs & pre-images are assumed to be sorted.
     *
     * _Available since v4.4._
     */
    function processProof(bytes32[] memory proof, bytes32 leaf) internal pure returns (bytes32) {
        bytes32 computedHash = leaf;
        for (uint256 i = 0; i < proof.length; i++) {
            bytes32 proofElement = proof[i];
            if (computedHash <= proofElement) {
                // Hash(current computed hash + current element of the proof)
                computedHash = _efficientHash(computedHash, proofElement);
            } else {
                // Hash(current element of the proof + current computed hash)
                computedHash = _efficientHash(proofElement, computedHash);
            }
        }
        return computedHash;
    }

    function _efficientHash(bytes32 a, bytes32 b) private pure returns (bytes32 value) {
        assembly {
            mstore(0x00, a)
            mstore(0x20, b)
            value := keccak256(0x00, 0x40)
        }
    }
}

// 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 (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": 200
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

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[{"inputs":[{"internalType":"address","name":"_rTokenAddress","type":"address"},{"internalType":"address","name":"_nftTokenAddress","type":"address"},{"internalType":"bytes32[]","name":"_rarityMerkleRoot","type":"bytes32[]"},{"internalType":"uint256[]","name":"_rewardTokenPerDay","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":"amount","type":"uint256"}],"name":"Stake","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"UnStake","type":"event"},{"inputs":[{"internalType":"address","name":"tokenAddress","type":"address"},{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_nftTokenAddress","type":"address"}],"name":"changeNftTokenAddress","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_rewardTokenAddress","type":"address"}],"name":"changeRewardTokenAddress","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256[]","name":"_rewardTokenPerDay","type":"uint256[]"}],"name":"changeRewardTokenPerDay","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"claim","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32[]","name":"_merkleProof","type":"bytes32[]"},{"internalType":"uint256","name":"_tokenId","type":"uint256"}],"name":"getRarity","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_user","type":"address"},{"internalType":"uint256","name":"_tokenId","type":"uint256"}],"name":"getStakingItemInfo","outputs":[{"internalType":"bool","name":"_isStaked","type":"bool"},{"internalType":"uint256","name":"_startTime","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"nftAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_user","type":"address"},{"internalType":"uint256","name":"_tokenId","type":"uint256"},{"internalType":"uint256","name":"_rarity","type":"uint256"}],"name":"pendingReward","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_user","type":"address"}],"name":"pendingTotalReward","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"rarityMerkleRoot","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"rewardTokenPerDay","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"rtoken","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256[]","name":"tokenIds","type":"uint256[]"},{"internalType":"bytes32[][]","name":"_merkleProofs","type":"bytes32[][]"}],"name":"stake","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"stakingAmount","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":"unstake","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32[]","name":"_rarityMerkleRoot","type":"bytes32[]"}],"name":"updateRarityMerkleRoots","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"uint256","name":"","type":"uint256"}],"name":"userInfo","outputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"uint256","name":"rarity","type":"uint256"},{"internalType":"uint256","name":"startTime","type":"uint256"}],"stateMutability":"view","type":"function"}]

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0000000000000000000000000679acf10581cd6e5521c912d3c0ab0ffb3007f000000000000000000000000016356944741a719b02f63e8f001f7ed7ec79c969000000000000000000000000000000000000000000000000000000000000008000000000000000000000000000000000000000000000000000000000000001400000000000000000000000000000000000000000000000000000000000000005dff0a9ca5948583be2c3a7d632e80bc06a78b87fb8f27247526850a82cfa4a52609f99bde189c2716e9efa5c1d6defefcb1da323357cc81555bec1fda5c38953087c5f1e792b0b7375d1a986e9105d7a99ffac997a414720ef6d94bead09922709d2bcb4dff79565b573c4417098b074ca55a9aedd4dc6f3b670855eafdef064af580df1cb4398b1f92bd3724afed0d2d4d03f9210a8757461e82d0eb39dc9e20000000000000000000000000000000000000000000000000000000000000005000000000000000000000000000000000000000000000000000000000000009600000000000000000000000000000000000000000000000000000000000000460000000000000000000000000000000000000000000000000000000000000028000000000000000000000000000000000000000000000000000000000000001e0000000000000000000000000000000000000000000000000000000000000014

-----Decoded View---------------
Arg [0] : _rTokenAddress (address): 0x0679aCF10581CD6e5521C912d3C0Ab0fFB3007F0
Arg [1] : _nftTokenAddress (address): 0x16356944741A719b02F63e8f001f7ED7ec79c969
Arg [2] : _rarityMerkleRoot (bytes32[]): System.Byte[],System.Byte[],System.Byte[],System.Byte[],System.Byte[]
Arg [3] : _rewardTokenPerDay (uint256[]): 150,70,40,30,20

-----Encoded View---------------
16 Constructor Arguments found :
Arg [0] : 0000000000000000000000000679acf10581cd6e5521c912d3c0ab0ffb3007f0
Arg [1] : 00000000000000000000000016356944741a719b02f63e8f001f7ed7ec79c969
Arg [2] : 0000000000000000000000000000000000000000000000000000000000000080
Arg [3] : 0000000000000000000000000000000000000000000000000000000000000140
Arg [4] : 0000000000000000000000000000000000000000000000000000000000000005
Arg [5] : dff0a9ca5948583be2c3a7d632e80bc06a78b87fb8f27247526850a82cfa4a52
Arg [6] : 609f99bde189c2716e9efa5c1d6defefcb1da323357cc81555bec1fda5c38953
Arg [7] : 087c5f1e792b0b7375d1a986e9105d7a99ffac997a414720ef6d94bead099227
Arg [8] : 09d2bcb4dff79565b573c4417098b074ca55a9aedd4dc6f3b670855eafdef064
Arg [9] : af580df1cb4398b1f92bd3724afed0d2d4d03f9210a8757461e82d0eb39dc9e2
Arg [10] : 0000000000000000000000000000000000000000000000000000000000000005
Arg [11] : 0000000000000000000000000000000000000000000000000000000000000096
Arg [12] : 0000000000000000000000000000000000000000000000000000000000000046
Arg [13] : 0000000000000000000000000000000000000000000000000000000000000028
Arg [14] : 000000000000000000000000000000000000000000000000000000000000001e
Arg [15] : 0000000000000000000000000000000000000000000000000000000000000014