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// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

import "@openzeppelin/contracts-upgradeable/access/AccessControlUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/utils/PausableUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/token/ERC20/ERC20Upgradeable.sol";
import "@openzeppelin/contracts-upgradeable/utils/ReentrancyGuardUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";

import "./interface/IAllStarsStaking.sol";

contract AllStarsStaking is
    Initializable,
    AccessControlUpgradeable,
    PausableUpgradeable,
    ReentrancyGuardUpgradeable,
    IAllStarsStaking
{
    /// @dev Role identifier for administrative functions
    bytes32 public constant ADMIN_ROLE = keccak256("ADMIN_ROLE");

    /// @notice Constant representing the zero address
    address internal constant ZERO_ADDRESS = address(0);

    /// @notice The ERC20 token used for rewards
    IERC20 public starToken;

    /// @notice Counter for the total number of games created
    uint256 public gameIdCounter;

    /// @notice The factor by which the end block is reduced after each stake
    uint256 public countdownReductionFactor;

    /// @notice The factor by which the end block is increased when close to expiration
    uint256 public finalGameFactor;

    /// @notice The factor which indicates the closeness to expiration in which the end time must be increased
    uint256 public finalResetFactor;

    /// @notice List of tokens allowed for staking
    address[] private allowedTokenArray;

    /// @notice Mapping of game IDs to their respective Game data
    mapping(uint256 => Game) private games;

    /**
     * @notice Tracks if a user has claimed rewards for a specific game
     * @dev gameId -> user -> bool
     */
    mapping(uint256 => mapping(address => bool)) public rewardsClaimed;

    /**
     * @notice Mapping to track which tokens a user has staked in a given game
     * @dev gameId -> user -> array of tokens staked
     */
    mapping(uint256 => mapping(address => address[])) public userStakedTokens;

    /**
     * @notice Tracks the total stakes of each token in a specific game
     * @dev gameId -> token -> total stakes
     */
    mapping(uint256 => mapping(address => uint256)) public totalGameStakes;

    /**
     * @notice Tracks individual stakes of users in a specific game and token
     * @dev gameId -> user -> token -> stake amount
     */
    mapping(uint256 => mapping(address => mapping(address => uint256)))
        public stakes;

    /// @notice No of blocks after a game's end, after which users will not get rewards in claim.
    uint256 public rewardClaimDeadlineBlocks;

    /**
     * @notice Initializes the contract with initial parameters
     * @param starToken_ The address of the STAR ERC20 token contract
     * @param adminAddress The address of the admin
     * @param allowedTokens_ The list of allowed tokens for staking
     * @param countdownReductionFactor_ The factor by which the end block is reduced after each stake
     * @param finalGameFactor_ The factor by which the end block is increased when close to expiration
     * @param finalResetFactor_ The factor in which the end block will be increased
     */
    function initialize(
        IERC20 starToken_,
        address adminAddress,
        address[] memory allowedTokens_,
        uint256 countdownReductionFactor_,
        uint256 finalGameFactor_,
        uint256 finalResetFactor_
    ) public initializer {
        require(
            countdownReductionFactor_ > 0,
            "AllStarsStaking: Countdown factor must be greater than zero"
        );
        require(
            finalGameFactor_ > 0,
            "AllStarsStaking: Final game factor must be greater than zero"
        );
        require(
            finalResetFactor_ > 0,
            "AllStarsStaking: Final reset factor must be greater than zero"
        );

        require(
            address(starToken_) != ZERO_ADDRESS && adminAddress != ZERO_ADDRESS,
            "AllStarsStaking: Zero address provided for STAR token or admin"
        );
        uint256 allowedTokensLength = allowedTokens_.length;
        require(
            allowedTokensLength > 0,
            "AllStarsStaking: No allowed tokens provided"
        );

        __AccessControl_init();
        __Pausable_init();
        __ReentrancyGuard_init();

        starToken = starToken_;
        allowedTokenArray = allowedTokens_;
        countdownReductionFactor = countdownReductionFactor_;
        finalGameFactor = finalGameFactor_;
        finalResetFactor = finalResetFactor_;

        _grantRole(DEFAULT_ADMIN_ROLE, adminAddress);
        _grantRole(ADMIN_ROLE, adminAddress);
    }

    // ==================== SEEDING LOGIC START ====================
    /**
     * @notice Function for seeding data of mapping: games
     * @dev Sets gameIdCounter as well.
     * @param _games Array of games data as per Game struct.
     */
    function seedGamesData(
        Game[] calldata _games
    ) external onlyRole(DEFAULT_ADMIN_ROLE) {
        gameIdCounter = _games.length;
        uint256 totalGames = _games.length;
        for (uint256 i = 0; i < totalGames; ++i) {
            Game calldata gameCalldata = _games[i];
            Game storage gameStorage = games[i + 1];
            gameStorage.startBlock = gameCalldata.startBlock;
            gameStorage.endBlock = gameCalldata.endBlock;
            gameStorage.gameBlocks = gameCalldata.gameBlocks;
            gameStorage.rewardAmount = gameCalldata.rewardAmount;
            gameStorage.creator = gameCalldata.creator;
            gameStorage.lastStakedToken = gameCalldata.lastStakedToken;
            gameStorage.stakeTokenSequence = gameCalldata.stakeTokenSequence;
            gameStorage.allowedTokens = gameCalldata.allowedTokens;
            gameStorage.claimed = gameCalldata.claimed;
        }
    }

    /**
     * @notice Function for seeding data of mapping: rewardsClaimed
     * @param _gameIds Array of game ids to seed.
     * @param _users Array of user addresses arrays.
     */
    function seedRewardsClaimedData(
        uint256[] calldata _gameIds,
        address[][] calldata _users
    ) external onlyRole(DEFAULT_ADMIN_ROLE) {
        uint256 totalGames = _gameIds.length;
        require(totalGames == _users.length, "ArrayLengthMismatch");
        for (uint256 i = 0; i < totalGames; ++i) {
            uint256 gameId = _gameIds[i];
            address[] calldata users = _users[i];
            for (uint256 j = 0; j < users.length; ++j) {
                rewardsClaimed[gameId][users[j]] = true;
            }
        }
    }

    /**
     * @notice Function for seeding data of mapping: userStakedTokens
     * @param _gameIds Array of game ids to seed.
     * @param _users Array of user addresses arrays.
     * @param _tokens Array of user's staked tokens array per game.
     */
    function seedUserStakedTokensData(
        uint256[] calldata _gameIds,
        address[][] calldata _users,
        address[][][] calldata _tokens
    ) external onlyRole(DEFAULT_ADMIN_ROLE) {
        uint256 totalGames = _gameIds.length;
        require(
            totalGames == _users.length && totalGames == _tokens.length,
            "ArrayLengthMismatch"
        );
        for (uint256 i = 0; i < totalGames; ++i) {
            uint256 gameId = _gameIds[i];
            uint256 totalGameUsers = _users[i].length;
            require(totalGameUsers == _tokens[i].length, "ArrayLengthMismatch");
            for (uint256 j = 0; j < totalGameUsers; ++j) {
                userStakedTokens[gameId][_users[i][j]] = _tokens[i][j];
            }
        }
    }

    /**
     * @notice Function for seeding data of mapping: totalGameStakes
     * @param _gameIds Array of game ids to seed.
     * @param _tokens Array of token addresses array.
     * @param _amounts Array of token staked amounts array.
     */
    function seedTotalGameStakesData(
        uint256[] calldata _gameIds,
        address[][] calldata _tokens,
        uint256[][] calldata _amounts
    ) external onlyRole(DEFAULT_ADMIN_ROLE) {
        uint256 totalGames = _gameIds.length;
        require(
            totalGames == _tokens.length && totalGames == _amounts.length,
            "ArrayLengthMismatch"
        );
        for (uint256 i = 0; i < totalGames; ++i) {
            uint256 gameId = _gameIds[i];
            require(
                _tokens[i].length == _amounts[i].length,
                "ArrayLengthMismatch"
            );
            uint256 totalTokens = _tokens[i].length;
            for (uint256 j = 0; j < totalTokens; ++j) {
                totalGameStakes[gameId][_tokens[i][j]] = _amounts[i][j];
            }
        }
    }

    /**
     * @notice Function for seeding data of mapping: stakes
     * @param _gameIds Array of game ids to seed.
     * @param _users Array of user addresses arrays.
     * @param _tokens Array of token addresses array arrays for user.
     * @param _amounts Array of token staked amounts array arrays for user.
     */
    function seedStakesData(
        uint256[] calldata _gameIds,
        address[][] calldata _users,
        address[][][] calldata _tokens,
        uint256[][][] calldata _amounts
    ) external onlyRole(DEFAULT_ADMIN_ROLE) {
        require(
            _gameIds.length == _users.length &&
                _gameIds.length == _tokens.length &&
                _gameIds.length == _amounts.length,
            "ArrayLengthMismatch"
        );
        for (uint256 i = 0; i < _gameIds.length; ++i) {
            require(
                _users[i].length == _tokens[i].length &&
                    _users[i].length == _amounts[i].length,
                "ArrayLengthMismatch"
            );
            for (uint256 j = 0; j < _users[i].length; ++j) {
                uint256 totalTokens = _tokens[i][j].length;
                require(
                    totalTokens == _amounts[i][j].length,
                    "ArrayLengthMismatch"
                );
                for (uint256 k = 0; k < totalTokens; ++k) {
                    stakes[_gameIds[i]][_users[i][j]][
                        _tokens[i][j][k]
                    ] = _amounts[i][j][k];
                }
            }
        }
    }
    // ==================== SEEDING LOGIC END ======================

    /**
     * @notice Creates a new lastMemeStanding game
     * @param startBlock The block number when the game starts
     * @param endBlock The block number when the game ends
     * @param rewardPoolAmount The reward pool amount for the game
     */
    function createNewGame(
        uint256 startBlock,
        uint256 endBlock,
        uint256 rewardPoolAmount
    ) external override whenNotPaused onlyRole(ADMIN_ROLE) {
        require(
            endBlock > startBlock,
            "AllStarsStaking: End block must be greater than start block"
        );
        require(
            startBlock > block.number,
            "AllStarsStaking: Start block must be greater than current block"
        );
        require(
            rewardPoolAmount > 0,
            "AllStarsStaking: Reward amount must be greater than zero"
        );

        gameIdCounter++;
        if (gameIdCounter > 1) {
            require(
                block.number > games[gameIdCounter - 1].endBlock,
                "AllStarsStaking: Game already running"
            );
        }
        games[gameIdCounter].startBlock = startBlock;
        games[gameIdCounter].endBlock = endBlock;
        games[gameIdCounter].rewardAmount = rewardPoolAmount;
        games[gameIdCounter].gameBlocks = endBlock - startBlock;
        games[gameIdCounter].allowedTokens = allowedTokenArray;
        games[gameIdCounter].creator = _msgSender();

        bool success = starToken.transferFrom(
            _msgSender(),
            address(this),
            rewardPoolAmount
        );
        require(success, "AllStarsStaking: Token transfer failed");

        emit NewGameCreated(
            gameIdCounter,
            startBlock,
            endBlock,
            rewardPoolAmount
        );
    }

    /**
     * @notice Allows users to stake tokens to a game
     * @param gameId The ID of the game in which to stake
     * @param token The address of the token to stake
     * @param amount The amount of tokens to stake
     */
    function stakeInGame(
        uint256 gameId,
        address token,
        uint256 amount
    ) external override nonReentrant whenNotPaused {
        require(
            gameId <= gameIdCounter,
            "AllStarsStaking: Game Id does not exist"
        );
        require(
            token != ZERO_ADDRESS,
            "AllStarsStaking: Token is zero address"
        );
        require(
            amount > 0,
            "AllStarsStaking: Stake amount must be greater than zero"
        );
        require(
            tokenAllowedForGame(gameId, token),
            "AllStarsStaking: Token is not allowed"
        );

        Game memory game = games[gameId];
        require(
            block.number >= game.startBlock,
            "AllStarsStaking: Game has not started yet"
        );
        require(
            block.number <= game.endBlock,
            "AllStarsStaking: Game has ended"
        );

        if (
            game.lastStakedToken == ZERO_ADDRESS ||
            game.stakeTokenSequence[0] != token
        ) {
            bool isLastStage = (game.endBlock - game.startBlock) <=
                finalResetFactor;
            updateLastTokenSequence(gameId, token, isLastStage);
        }
        if (stakes[gameId][_msgSender()][token] == 0) {
            userStakedTokens[gameId][_msgSender()].push(token);
        }
        stakes[gameId][_msgSender()][token] += amount;
        totalGameStakes[gameId][token] += amount;

        bool success = IERC20(token).transferFrom(
            _msgSender(),
            address(this),
            amount
        );
        require(success, "AllStarsStaking: Token transfer failed");

        emit StakedInGame(gameId, _msgSender(), token, amount);
    }

    /**
     * @notice Internal function to update the last token staked for the game
     * @param gameId The ID of the game to update
     * @param token The address of the token to update
     * @param isLastStage The boolean to confirm whether to reduce or increase game endTime as per time of stake
     */
    function updateLastTokenSequence(
        uint256 gameId,
        address token,
        bool isLastStage
    ) internal {
        uint256 changeValue;
        Game storage game = games[gameId];

        if (isLastStage) {
            changeValue = block.number + finalGameFactor;
        } else {
            changeValue =
                block.number +
                (game.endBlock - game.startBlock - countdownReductionFactor);
        }
        game.lastStakedToken = token;
        game.endBlock = changeValue;
        game.startBlock = block.number;

        bool found = false;
        uint256 index = 0;
        uint256 stakeTokenLength = game.stakeTokenSequence.length;
        for (uint256 i = 0; i < stakeTokenLength; i++) {
            if (game.stakeTokenSequence[i] == token) {
                found = true;
                index = i;
                break;
            }
        }

        if (!found) {
            game.stakeTokenSequence.push(token);
            for (uint256 i = game.stakeTokenSequence.length - 1; i > 0; i--) {
                game.stakeTokenSequence[i] = game.stakeTokenSequence[i - 1];
            }
            game.stakeTokenSequence[0] = token;
        } else {
            for (uint256 i = index; i > 0; i--) {
                game.stakeTokenSequence[i] = game.stakeTokenSequence[i - 1];
            }
            game.stakeTokenSequence[0] = token;
        }
    }

    /**
     * @notice Allows users to claim rewards for staking on the winning token
     * @param gameId The ID of the phase for which the reward is claimed
     */
    function claimAllGameRewards(
        uint256 gameId
    ) external override nonReentrant whenNotPaused {
        require(
            gameId <= gameIdCounter,
            "AllStarsStaking: Game Id does not exist"
        );
        require(
            block.number > games[gameId].endBlock,
            "AllStarsStaking: Game has not ended"
        );
        require(
            !rewardsClaimed[gameId][_msgSender()],
            "AllStarsStaking: Reward already claimed"
        );

        address winningToken = games[gameId].lastStakedToken;
        uint256 rewardAmount = games[gameId].rewardAmount;
        uint256 totalReward = 0;

        address[] memory stakedTokens = userStakedTokens[gameId][_msgSender()];
        uint256 stakedTokensLength = stakedTokens.length;
        require(
            stakedTokensLength > 0,
            "AllStarsStaking: No staked tokens to claim"
        );
        rewardsClaimed[gameId][_msgSender()] = true;

        for (uint256 i = 0; i < stakedTokensLength; i++) {
            address token = stakedTokens[i];
            uint256 userStake = stakes[gameId][_msgSender()][token];
            if (userStake > 0) {
                if (token == winningToken) {
                    uint256 totalStakes = totalGameStakes[gameId][token];
                    totalReward += (rewardAmount * userStake) / totalStakes;
                }
                bool success = IERC20(token).transfer(_msgSender(), userStake);
                require(success, "AllStarsStaking: Token transfer failed");
            }
        }

        delete userStakedTokens[gameId][_msgSender()];
        bool deadlineNotReached = rewardClaimDeadlineBlocks == 0 ||
            (block.number - games[gameId].endBlock) <=
            rewardClaimDeadlineBlocks;
        if (totalReward > 0 && deadlineNotReached) {
            bool transferSuccess = starToken.transfer(
                _msgSender(),
                totalReward
            );
            require(transferSuccess, "AllStarsStaking: Token transfer failed");
            emit GameRewardClaimed(gameId, _msgSender(), totalReward);
        }
    }

    /**
     * @notice Allows admin to end game if no one has staked
     * @param gameId The ID of the game to end
     */
    function endGame(
        uint256 gameId
    ) external override nonReentrant whenNotPaused onlyRole(ADMIN_ROLE) {
        require(
            gameId <= gameIdCounter,
            "AllStarsStaking: Game Id does not exist"
        );
        require(
            block.number > games[gameId].endBlock,
            "AllStarsStaking: Game has not ended"
        );
        require(
            games[gameId].lastStakedToken == ZERO_ADDRESS,
            "AllStarsStaking: User staking exist"
        );
        require(
            !games[gameId].claimed,
            "AllStarsStaking: Reward already claimed"
        );

        games[gameId].claimed = true;
        bool success = starToken.transfer(
            games[gameId].creator,
            games[gameId].rewardAmount
        );
        require(success, "AllStarsStaking: Token transfer failed");
        emit GameEnded(gameId);
    }

    /**
     * @notice Updates the allowed tokens array to be used in the next game
     * @param newAllowedTokens_ The new list of allowed tokens for staking
     */
    function updateAllowedTokens(
        address[] memory newAllowedTokens_
    ) external override onlyRole(ADMIN_ROLE) {
        uint256 allowedTokensLength = newAllowedTokens_.length;
        require(
            allowedTokensLength > 0,
            "AllStarsStaking: No allowed tokens provided"
        );
        allowedTokenArray = newAllowedTokens_;
        emit AllowedTokensUpdated(allowedTokenArray);
    }

    /**
     * @notice Updates the game factors for last stake game mechanics
     * @param newCountdownReductionFactor The new factor by which the end block is reduced after each stake
     * @param newFinalGameFactor The new factor by which the end block is increased when close to expiration
     * @param newFinalResetFactor The new factor in which the end block will be increased
     */
    function updateGameFactors(
        uint256 newCountdownReductionFactor,
        uint256 newFinalGameFactor,
        uint256 newFinalResetFactor
    ) external override whenNotPaused onlyRole(ADMIN_ROLE) {
        require(
            newCountdownReductionFactor > 0,
            "AllStarsStaking: Countdown factor must be greater than zero"
        );
        require(
            newFinalGameFactor > 0,
            "AllStarsStaking: Final game factor must be greater than zero"
        );
        require(
            newFinalResetFactor > 0,
            "AllStarsStaking: Final reset factor must be greater than zero"
        );

        require(
            newCountdownReductionFactor != countdownReductionFactor ||
                newFinalGameFactor != finalGameFactor ||
                newFinalResetFactor != finalResetFactor,
            "AllStarsStaking: No factors changed"
        );

        countdownReductionFactor = newCountdownReductionFactor;
        finalGameFactor = newFinalGameFactor;
        finalResetFactor = newFinalResetFactor;

        emit FactorsUpdated(
            newCountdownReductionFactor,
            newFinalGameFactor,
            newFinalResetFactor
        );
    }

    /**
     * @notice Returns the staking details for the gameId and the user address
     * @param gameId The ID of the game to fetch its details
     * @param user The address of the user to fetch its details
     */
    function getUserDetails(
        uint256 gameId,
        address user
    )
        external
        view
        returns (address[] memory, uint256[] memory, uint256[] memory)
    {
        uint256 allowedTokensLength = games[gameId].allowedTokens.length;
        address[] memory tokens = new address[](allowedTokensLength);
        uint256[] memory totalStake = new uint256[](allowedTokensLength);
        uint256[] memory yourStake = new uint256[](allowedTokensLength);
        for (uint8 index = 0; index < allowedTokensLength; index++) {
            address iteratingToken = games[gameId].allowedTokens[index];
            tokens[index] = (iteratingToken);
            totalStake[index] = (totalGameStakes[gameId][iteratingToken]);
            yourStake[index] = (stakes[gameId][user][iteratingToken]);
        }
        return (tokens, totalStake, yourStake);
    }

    /**
     * @notice Returns the user rewards for the gameId and the user address
     * @param gameId The ID of the game to fetch its details
     * @param user The address of the user to fetch its details
     */
    function getUserRewards(
        uint256 gameId,
        address user
    ) external view returns (uint256 reward) {
        require(
            gameId <= gameIdCounter,
            "AllStarsStaking: Game Id does not exist"
        );
        require(
            block.number > games[gameId].endBlock,
            "AllStarsStaking: Game has not ended"
        );
        address winningToken = games[gameId].lastStakedToken;
        uint256 userStake = stakes[gameId][user][winningToken];
        if (userStake > 0) {
            uint256 totalStakes = totalGameStakes[gameId][winningToken];
            reward = (games[gameId].rewardAmount * userStake) / totalStakes;
        }
    }

    /**
     * @notice Returns the game details for the gameId provided
     * @param gameId The ID of the game to fetch its details
     */
    function getGameDetails(
        uint256 gameId
    ) external view returns (Game memory) {
        return games[gameId];
    }

    /**
     * @notice Returns the tokens allowed for staking
     */
    function allowedTokens() external view returns (address[] memory) {
        return allowedTokenArray;
    }

    /**
     * @notice Returns whether the token is allowed in the game
     */
    function tokenAllowedForGame(
        uint256 gameId,
        address token
    ) internal view returns (bool) {
        uint256 allowedTokenLength = games[gameId].allowedTokens.length;
        for (uint8 index = 0; index < allowedTokenLength; index++) {
            if (games[gameId].allowedTokens[index] == token) return true;
        }
        return false;
    }

    /**
     * @dev Pauses the contract, preventing certain functions from being executed.
     * @dev Only authorized users can call this function.
     */
    function pause() external onlyRole(ADMIN_ROLE) {
        _pause();
    }

    /**
     * @dev Unpauses the contract, allowing the execution of all functions.
     * @dev Only authorized users can call this function.
     */
    function unpause() external onlyRole(ADMIN_ROLE) {
        _unpause();
    }

    /**
     * @notice Function to update rewardClaimDeadlineBlocks no by address with ADMIN_ROLE.
     * @param _deadlineBlocks No of blocks after a game's end, after which rewards will not be given.
     */
    function updateRewardClaimDeadlineBlocks(
        uint256 _deadlineBlocks
    ) external onlyRole(ADMIN_ROLE) {
        uint256 oldDeadline = rewardClaimDeadlineBlocks;
        rewardClaimDeadlineBlocks = _deadlineBlocks;
        emit RewardClaimDeadlineBlocksUpdated(
            msg.sender,
            oldDeadline,
            _deadlineBlocks,
            block.timestamp
        );
    }

    /**
     * @notice Function for admin to withdraw tokens from the contract.
     * @param _token Address of token to withdraw.
     * @param _amount Token amount to withdraw.
     */
    function withdrawTokens(
        address _token,
        uint256 _amount
    ) external onlyRole(ADMIN_ROLE) {
        IERC20 token = IERC20(_token);
        require(
            token.balanceOf(address(this)) >= _amount,
            "Insufficient Balance."
        );
        bool success = token.transfer(msg.sender, _amount);
        require(success, "AllStarsStaking: Token transfer failed");
        emit AdminTokenWithdrawal(msg.sender, _token, _amount, block.timestamp);
    }

    /**
     * @notice Function to update rewardAmount of a game.
     * @dev One-time callable function after upgrade.
     * @param _gameId Id of the game
     * @param _amountToAdd Token amount to add to existing rewardAmount of the game.
     */
    function updateGameRewardAmount(
        uint256 _gameId,
        uint256 _amountToAdd
    ) external onlyRole(ADMIN_ROLE) {
        require(
            _gameId <= gameIdCounter,
            "AllStarsStaking: Game Id does not exist"
        );
        games[_gameId].rewardAmount += _amountToAdd;
        bool success = starToken.transferFrom(
            _msgSender(),
            address(this),
            _amountToAdd
        );
        require(success, "AllStarsStaking: Token transfer failed");
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (access/AccessControl.sol)

pragma solidity ^0.8.20;

import {IAccessControl} from "@openzeppelin/contracts/access/IAccessControl.sol";
import {ContextUpgradeable} from "../utils/ContextUpgradeable.sol";
import {ERC165Upgradeable} from "../utils/introspection/ERC165Upgradeable.sol";
import {Initializable} from "../proxy/utils/Initializable.sol";

/**
 * @dev Contract module that allows children to implement role-based access
 * control mechanisms. This is a lightweight version that doesn't allow enumerating role
 * members except through off-chain means by accessing the contract event logs. Some
 * applications may benefit from on-chain enumerability, for those cases see
 * {AccessControlEnumerable}.
 *
 * Roles are referred to by their `bytes32` identifier. These should be exposed
 * in the external API and be unique. The best way to achieve this is by
 * using `public constant` hash digests:
 *
 * ```solidity
 * bytes32 public constant MY_ROLE = keccak256("MY_ROLE");
 * ```
 *
 * Roles can be used to represent a set of permissions. To restrict access to a
 * function call, use {hasRole}:
 *
 * ```solidity
 * function foo() public {
 *     require(hasRole(MY_ROLE, msg.sender));
 *     ...
 * }
 * ```
 *
 * Roles can be granted and revoked dynamically via the {grantRole} and
 * {revokeRole} functions. Each role has an associated admin role, and only
 * accounts that have a role's admin role can call {grantRole} and {revokeRole}.
 *
 * By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means
 * that only accounts with this role will be able to grant or revoke other
 * roles. More complex role relationships can be created by using
 * {_setRoleAdmin}.
 *
 * WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to
 * grant and revoke this role. Extra precautions should be taken to secure
 * accounts that have been granted it. We recommend using {AccessControlDefaultAdminRules}
 * to enforce additional security measures for this role.
 */
abstract contract AccessControlUpgradeable is Initializable, ContextUpgradeable, IAccessControl, ERC165Upgradeable {
    struct RoleData {
        mapping(address account => bool) hasRole;
        bytes32 adminRole;
    }

    bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00;


    /// @custom:storage-location erc7201:openzeppelin.storage.AccessControl
    struct AccessControlStorage {
        mapping(bytes32 role => RoleData) _roles;
    }

    // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.AccessControl")) - 1)) & ~bytes32(uint256(0xff))
    bytes32 private constant AccessControlStorageLocation = 0x02dd7bc7dec4dceedda775e58dd541e08a116c6c53815c0bd028192f7b626800;

    function _getAccessControlStorage() private pure returns (AccessControlStorage storage $) {
        assembly {
            $.slot := AccessControlStorageLocation
        }
    }

    /**
     * @dev Modifier that checks that an account has a specific role. Reverts
     * with an {AccessControlUnauthorizedAccount} error including the required role.
     */
    modifier onlyRole(bytes32 role) {
        _checkRole(role);
        _;
    }

    function __AccessControl_init() internal onlyInitializing {
    }

    function __AccessControl_init_unchained() internal onlyInitializing {
    }
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IAccessControl).interfaceId || super.supportsInterface(interfaceId);
    }

    /**
     * @dev Returns `true` if `account` has been granted `role`.
     */
    function hasRole(bytes32 role, address account) public view virtual returns (bool) {
        AccessControlStorage storage $ = _getAccessControlStorage();
        return $._roles[role].hasRole[account];
    }

    /**
     * @dev Reverts with an {AccessControlUnauthorizedAccount} error if `_msgSender()`
     * is missing `role`. Overriding this function changes the behavior of the {onlyRole} modifier.
     */
    function _checkRole(bytes32 role) internal view virtual {
        _checkRole(role, _msgSender());
    }

    /**
     * @dev Reverts with an {AccessControlUnauthorizedAccount} error if `account`
     * is missing `role`.
     */
    function _checkRole(bytes32 role, address account) internal view virtual {
        if (!hasRole(role, account)) {
            revert AccessControlUnauthorizedAccount(account, role);
        }
    }

    /**
     * @dev Returns the admin role that controls `role`. See {grantRole} and
     * {revokeRole}.
     *
     * To change a role's admin, use {_setRoleAdmin}.
     */
    function getRoleAdmin(bytes32 role) public view virtual returns (bytes32) {
        AccessControlStorage storage $ = _getAccessControlStorage();
        return $._roles[role].adminRole;
    }

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     *
     * May emit a {RoleGranted} event.
     */
    function grantRole(bytes32 role, address account) public virtual onlyRole(getRoleAdmin(role)) {
        _grantRole(role, account);
    }

    /**
     * @dev Revokes `role` from `account`.
     *
     * If `account` had been granted `role`, emits a {RoleRevoked} event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     *
     * May emit a {RoleRevoked} event.
     */
    function revokeRole(bytes32 role, address account) public virtual onlyRole(getRoleAdmin(role)) {
        _revokeRole(role, account);
    }

    /**
     * @dev Revokes `role` from the calling account.
     *
     * Roles are often managed via {grantRole} and {revokeRole}: this function's
     * purpose is to provide a mechanism for accounts to lose their privileges
     * if they are compromised (such as when a trusted device is misplaced).
     *
     * If the calling account had been revoked `role`, emits a {RoleRevoked}
     * event.
     *
     * Requirements:
     *
     * - the caller must be `callerConfirmation`.
     *
     * May emit a {RoleRevoked} event.
     */
    function renounceRole(bytes32 role, address callerConfirmation) public virtual {
        if (callerConfirmation != _msgSender()) {
            revert AccessControlBadConfirmation();
        }

        _revokeRole(role, callerConfirmation);
    }

    /**
     * @dev Sets `adminRole` as ``role``'s admin role.
     *
     * Emits a {RoleAdminChanged} event.
     */
    function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual {
        AccessControlStorage storage $ = _getAccessControlStorage();
        bytes32 previousAdminRole = getRoleAdmin(role);
        $._roles[role].adminRole = adminRole;
        emit RoleAdminChanged(role, previousAdminRole, adminRole);
    }

    /**
     * @dev Attempts to grant `role` to `account` and returns a boolean indicating if `role` was granted.
     *
     * Internal function without access restriction.
     *
     * May emit a {RoleGranted} event.
     */
    function _grantRole(bytes32 role, address account) internal virtual returns (bool) {
        AccessControlStorage storage $ = _getAccessControlStorage();
        if (!hasRole(role, account)) {
            $._roles[role].hasRole[account] = true;
            emit RoleGranted(role, account, _msgSender());
            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Attempts to revoke `role` to `account` and returns a boolean indicating if `role` was revoked.
     *
     * Internal function without access restriction.
     *
     * May emit a {RoleRevoked} event.
     */
    function _revokeRole(bytes32 role, address account) internal virtual returns (bool) {
        AccessControlStorage storage $ = _getAccessControlStorage();
        if (hasRole(role, account)) {
            $._roles[role].hasRole[account] = false;
            emit RoleRevoked(role, account, _msgSender());
            return true;
        } else {
            return false;
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (proxy/utils/Initializable.sol)

pragma solidity ^0.8.20;

/**
 * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
 * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
 * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
 * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
 *
 * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be
 * reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in
 * case an upgrade adds a module that needs to be initialized.
 *
 * For example:
 *
 * [.hljs-theme-light.nopadding]
 * ```solidity
 * contract MyToken is ERC20Upgradeable {
 *     function initialize() initializer public {
 *         __ERC20_init("MyToken", "MTK");
 *     }
 * }
 *
 * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {
 *     function initializeV2() reinitializer(2) public {
 *         __ERC20Permit_init("MyToken");
 *     }
 * }
 * ```
 *
 * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
 * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
 *
 * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
 * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
 *
 * [CAUTION]
 * ====
 * Avoid leaving a contract uninitialized.
 *
 * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
 * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke
 * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:
 *
 * [.hljs-theme-light.nopadding]
 * ```
 * /// @custom:oz-upgrades-unsafe-allow constructor
 * constructor() {
 *     _disableInitializers();
 * }
 * ```
 * ====
 */
abstract contract Initializable {
    /**
     * @dev Storage of the initializable contract.
     *
     * It's implemented on a custom ERC-7201 namespace to reduce the risk of storage collisions
     * when using with upgradeable contracts.
     *
     * @custom:storage-location erc7201:openzeppelin.storage.Initializable
     */
    struct InitializableStorage {
        /**
         * @dev Indicates that the contract has been initialized.
         */
        uint64 _initialized;
        /**
         * @dev Indicates that the contract is in the process of being initialized.
         */
        bool _initializing;
    }

    // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.Initializable")) - 1)) & ~bytes32(uint256(0xff))
    bytes32 private constant INITIALIZABLE_STORAGE = 0xf0c57e16840df040f15088dc2f81fe391c3923bec73e23a9662efc9c229c6a00;

    /**
     * @dev The contract is already initialized.
     */
    error InvalidInitialization();

    /**
     * @dev The contract is not initializing.
     */
    error NotInitializing();

    /**
     * @dev Triggered when the contract has been initialized or reinitialized.
     */
    event Initialized(uint64 version);

    /**
     * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,
     * `onlyInitializing` functions can be used to initialize parent contracts.
     *
     * Similar to `reinitializer(1)`, except that in the context of a constructor an `initializer` may be invoked any
     * number of times. This behavior in the constructor can be useful during testing and is not expected to be used in
     * production.
     *
     * Emits an {Initialized} event.
     */
    modifier initializer() {
        // solhint-disable-next-line var-name-mixedcase
        InitializableStorage storage $ = _getInitializableStorage();

        // Cache values to avoid duplicated sloads
        bool isTopLevelCall = !$._initializing;
        uint64 initialized = $._initialized;

        // Allowed calls:
        // - initialSetup: the contract is not in the initializing state and no previous version was
        //                 initialized
        // - construction: the contract is initialized at version 1 (no reininitialization) and the
        //                 current contract is just being deployed
        bool initialSetup = initialized == 0 && isTopLevelCall;
        bool construction = initialized == 1 && address(this).code.length == 0;

        if (!initialSetup && !construction) {
            revert InvalidInitialization();
        }
        $._initialized = 1;
        if (isTopLevelCall) {
            $._initializing = true;
        }
        _;
        if (isTopLevelCall) {
            $._initializing = false;
            emit Initialized(1);
        }
    }

    /**
     * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the
     * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be
     * used to initialize parent contracts.
     *
     * A reinitializer may be used after the original initialization step. This is essential to configure modules that
     * are added through upgrades and that require initialization.
     *
     * When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`
     * cannot be nested. If one is invoked in the context of another, execution will revert.
     *
     * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in
     * a contract, executing them in the right order is up to the developer or operator.
     *
     * WARNING: Setting the version to 2**64 - 1 will prevent any future reinitialization.
     *
     * Emits an {Initialized} event.
     */
    modifier reinitializer(uint64 version) {
        // solhint-disable-next-line var-name-mixedcase
        InitializableStorage storage $ = _getInitializableStorage();

        if ($._initializing || $._initialized >= version) {
            revert InvalidInitialization();
        }
        $._initialized = version;
        $._initializing = true;
        _;
        $._initializing = false;
        emit Initialized(version);
    }

    /**
     * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
     * {initializer} and {reinitializer} modifiers, directly or indirectly.
     */
    modifier onlyInitializing() {
        _checkInitializing();
        _;
    }

    /**
     * @dev Reverts if the contract is not in an initializing state. See {onlyInitializing}.
     */
    function _checkInitializing() internal view virtual {
        if (!_isInitializing()) {
            revert NotInitializing();
        }
    }

    /**
     * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.
     * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized
     * to any version. It is recommended to use this to lock implementation contracts that are designed to be called
     * through proxies.
     *
     * Emits an {Initialized} event the first time it is successfully executed.
     */
    function _disableInitializers() internal virtual {
        // solhint-disable-next-line var-name-mixedcase
        InitializableStorage storage $ = _getInitializableStorage();

        if ($._initializing) {
            revert InvalidInitialization();
        }
        if ($._initialized != type(uint64).max) {
            $._initialized = type(uint64).max;
            emit Initialized(type(uint64).max);
        }
    }

    /**
     * @dev Returns the highest version that has been initialized. See {reinitializer}.
     */
    function _getInitializedVersion() internal view returns (uint64) {
        return _getInitializableStorage()._initialized;
    }

    /**
     * @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}.
     */
    function _isInitializing() internal view returns (bool) {
        return _getInitializableStorage()._initializing;
    }

    /**
     * @dev Returns a pointer to the storage namespace.
     */
    // solhint-disable-next-line var-name-mixedcase
    function _getInitializableStorage() private pure returns (InitializableStorage storage $) {
        assembly {
            $.slot := INITIALIZABLE_STORAGE
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (token/ERC20/ERC20.sol)

pragma solidity ^0.8.20;

import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import {IERC20Metadata} from "@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol";
import {ContextUpgradeable} from "../../utils/ContextUpgradeable.sol";
import {IERC20Errors} from "@openzeppelin/contracts/interfaces/draft-IERC6093.sol";
import {Initializable} from "../../proxy/utils/Initializable.sol";

/**
 * @dev Implementation of the {IERC20} interface.
 *
 * This implementation is agnostic to the way tokens are created. This means
 * that a supply mechanism has to be added in a derived contract using {_mint}.
 *
 * TIP: For a detailed writeup see our guide
 * https://forum.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How
 * to implement supply mechanisms].
 *
 * The default value of {decimals} is 18. To change this, you should override
 * this function so it returns a different value.
 *
 * We have followed general OpenZeppelin Contracts guidelines: functions revert
 * instead returning `false` on failure. This behavior is nonetheless
 * conventional and does not conflict with the expectations of ERC-20
 * applications.
 */
abstract contract ERC20Upgradeable is Initializable, ContextUpgradeable, IERC20, IERC20Metadata, IERC20Errors {
    /// @custom:storage-location erc7201:openzeppelin.storage.ERC20
    struct ERC20Storage {
        mapping(address account => uint256) _balances;

        mapping(address account => mapping(address spender => uint256)) _allowances;

        uint256 _totalSupply;

        string _name;
        string _symbol;
    }

    // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.ERC20")) - 1)) & ~bytes32(uint256(0xff))
    bytes32 private constant ERC20StorageLocation = 0x52c63247e1f47db19d5ce0460030c497f067ca4cebf71ba98eeadabe20bace00;

    function _getERC20Storage() private pure returns (ERC20Storage storage $) {
        assembly {
            $.slot := ERC20StorageLocation
        }
    }

    /**
     * @dev Sets the values for {name} and {symbol}.
     *
     * All two of these values are immutable: they can only be set once during
     * construction.
     */
    function __ERC20_init(string memory name_, string memory symbol_) internal onlyInitializing {
        __ERC20_init_unchained(name_, symbol_);
    }

    function __ERC20_init_unchained(string memory name_, string memory symbol_) internal onlyInitializing {
        ERC20Storage storage $ = _getERC20Storage();
        $._name = name_;
        $._symbol = symbol_;
    }

    /**
     * @dev Returns the name of the token.
     */
    function name() public view virtual returns (string memory) {
        ERC20Storage storage $ = _getERC20Storage();
        return $._name;
    }

    /**
     * @dev Returns the symbol of the token, usually a shorter version of the
     * name.
     */
    function symbol() public view virtual returns (string memory) {
        ERC20Storage storage $ = _getERC20Storage();
        return $._symbol;
    }

    /**
     * @dev Returns the number of decimals used to get its user representation.
     * For example, if `decimals` equals `2`, a balance of `505` tokens should
     * be displayed to a user as `5.05` (`505 / 10 ** 2`).
     *
     * Tokens usually opt for a value of 18, imitating the relationship between
     * Ether and Wei. This is the default value returned by this function, unless
     * it's overridden.
     *
     * NOTE: This information is only used for _display_ purposes: it in
     * no way affects any of the arithmetic of the contract, including
     * {IERC20-balanceOf} and {IERC20-transfer}.
     */
    function decimals() public view virtual returns (uint8) {
        return 18;
    }

    /**
     * @dev See {IERC20-totalSupply}.
     */
    function totalSupply() public view virtual returns (uint256) {
        ERC20Storage storage $ = _getERC20Storage();
        return $._totalSupply;
    }

    /**
     * @dev See {IERC20-balanceOf}.
     */
    function balanceOf(address account) public view virtual returns (uint256) {
        ERC20Storage storage $ = _getERC20Storage();
        return $._balances[account];
    }

    /**
     * @dev See {IERC20-transfer}.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - the caller must have a balance of at least `value`.
     */
    function transfer(address to, uint256 value) public virtual returns (bool) {
        address owner = _msgSender();
        _transfer(owner, to, value);
        return true;
    }

    /**
     * @dev See {IERC20-allowance}.
     */
    function allowance(address owner, address spender) public view virtual returns (uint256) {
        ERC20Storage storage $ = _getERC20Storage();
        return $._allowances[owner][spender];
    }

    /**
     * @dev See {IERC20-approve}.
     *
     * NOTE: If `value` is the maximum `uint256`, the allowance is not updated on
     * `transferFrom`. This is semantically equivalent to an infinite approval.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function approve(address spender, uint256 value) public virtual returns (bool) {
        address owner = _msgSender();
        _approve(owner, spender, value);
        return true;
    }

    /**
     * @dev See {IERC20-transferFrom}.
     *
     * Skips emitting an {Approval} event indicating an allowance update. This is not
     * required by the ERC. See {xref-ERC20-_approve-address-address-uint256-bool-}[_approve].
     *
     * NOTE: Does not update the allowance if the current allowance
     * is the maximum `uint256`.
     *
     * Requirements:
     *
     * - `from` and `to` cannot be the zero address.
     * - `from` must have a balance of at least `value`.
     * - the caller must have allowance for ``from``'s tokens of at least
     * `value`.
     */
    function transferFrom(address from, address to, uint256 value) public virtual returns (bool) {
        address spender = _msgSender();
        _spendAllowance(from, spender, value);
        _transfer(from, to, value);
        return true;
    }

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to`.
     *
     * This internal function is equivalent to {transfer}, and can be used to
     * e.g. implement automatic token fees, slashing mechanisms, etc.
     *
     * Emits a {Transfer} event.
     *
     * NOTE: This function is not virtual, {_update} should be overridden instead.
     */
    function _transfer(address from, address to, uint256 value) internal {
        if (from == address(0)) {
            revert ERC20InvalidSender(address(0));
        }
        if (to == address(0)) {
            revert ERC20InvalidReceiver(address(0));
        }
        _update(from, to, value);
    }

    /**
     * @dev Transfers a `value` amount of tokens from `from` to `to`, or alternatively mints (or burns) if `from`
     * (or `to`) is the zero address. All customizations to transfers, mints, and burns should be done by overriding
     * this function.
     *
     * Emits a {Transfer} event.
     */
    function _update(address from, address to, uint256 value) internal virtual {
        ERC20Storage storage $ = _getERC20Storage();
        if (from == address(0)) {
            // Overflow check required: The rest of the code assumes that totalSupply never overflows
            $._totalSupply += value;
        } else {
            uint256 fromBalance = $._balances[from];
            if (fromBalance < value) {
                revert ERC20InsufficientBalance(from, fromBalance, value);
            }
            unchecked {
                // Overflow not possible: value <= fromBalance <= totalSupply.
                $._balances[from] = fromBalance - value;
            }
        }

        if (to == address(0)) {
            unchecked {
                // Overflow not possible: value <= totalSupply or value <= fromBalance <= totalSupply.
                $._totalSupply -= value;
            }
        } else {
            unchecked {
                // Overflow not possible: balance + value is at most totalSupply, which we know fits into a uint256.
                $._balances[to] += value;
            }
        }

        emit Transfer(from, to, value);
    }

    /**
     * @dev Creates a `value` amount of tokens and assigns them to `account`, by transferring it from address(0).
     * Relies on the `_update` mechanism
     *
     * Emits a {Transfer} event with `from` set to the zero address.
     *
     * NOTE: This function is not virtual, {_update} should be overridden instead.
     */
    function _mint(address account, uint256 value) internal {
        if (account == address(0)) {
            revert ERC20InvalidReceiver(address(0));
        }
        _update(address(0), account, value);
    }

    /**
     * @dev Destroys a `value` amount of tokens from `account`, lowering the total supply.
     * Relies on the `_update` mechanism.
     *
     * Emits a {Transfer} event with `to` set to the zero address.
     *
     * NOTE: This function is not virtual, {_update} should be overridden instead
     */
    function _burn(address account, uint256 value) internal {
        if (account == address(0)) {
            revert ERC20InvalidSender(address(0));
        }
        _update(account, address(0), value);
    }

    /**
     * @dev Sets `value` as the allowance of `spender` over the `owner` s tokens.
     *
     * This internal function is equivalent to `approve`, and can be used to
     * e.g. set automatic allowances for certain subsystems, etc.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `owner` cannot be the zero address.
     * - `spender` cannot be the zero address.
     *
     * Overrides to this logic should be done to the variant with an additional `bool emitEvent` argument.
     */
    function _approve(address owner, address spender, uint256 value) internal {
        _approve(owner, spender, value, true);
    }

    /**
     * @dev Variant of {_approve} with an optional flag to enable or disable the {Approval} event.
     *
     * By default (when calling {_approve}) the flag is set to true. On the other hand, approval changes made by
     * `_spendAllowance` during the `transferFrom` operation set the flag to false. This saves gas by not emitting any
     * `Approval` event during `transferFrom` operations.
     *
     * Anyone who wishes to continue emitting `Approval` events on the`transferFrom` operation can force the flag to
     * true using the following override:
     *
     * ```solidity
     * function _approve(address owner, address spender, uint256 value, bool) internal virtual override {
     *     super._approve(owner, spender, value, true);
     * }
     * ```
     *
     * Requirements are the same as {_approve}.
     */
    function _approve(address owner, address spender, uint256 value, bool emitEvent) internal virtual {
        ERC20Storage storage $ = _getERC20Storage();
        if (owner == address(0)) {
            revert ERC20InvalidApprover(address(0));
        }
        if (spender == address(0)) {
            revert ERC20InvalidSpender(address(0));
        }
        $._allowances[owner][spender] = value;
        if (emitEvent) {
            emit Approval(owner, spender, value);
        }
    }

    /**
     * @dev Updates `owner` s allowance for `spender` based on spent `value`.
     *
     * Does not update the allowance value in case of infinite allowance.
     * Revert if not enough allowance is available.
     *
     * Does not emit an {Approval} event.
     */
    function _spendAllowance(address owner, address spender, uint256 value) internal virtual {
        uint256 currentAllowance = allowance(owner, spender);
        if (currentAllowance != type(uint256).max) {
            if (currentAllowance < value) {
                revert ERC20InsufficientAllowance(spender, currentAllowance, value);
            }
            unchecked {
                _approve(owner, spender, currentAllowance - value, false);
            }
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)

pragma solidity ^0.8.20;
import {Initializable} from "../proxy/utils/Initializable.sol";

/**
 * @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 ContextUpgradeable is Initializable {
    function __Context_init() internal onlyInitializing {
    }

    function __Context_init_unchained() internal onlyInitializing {
    }
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }

    function _contextSuffixLength() internal view virtual returns (uint256) {
        return 0;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/introspection/ERC165.sol)

pragma solidity ^0.8.20;

import {IERC165} from "@openzeppelin/contracts/utils/introspection/IERC165.sol";
import {Initializable} from "../../proxy/utils/Initializable.sol";

/**
 * @dev Implementation of the {IERC165} interface.
 *
 * Contracts that want to implement ERC-165 should inherit from this contract and override {supportsInterface} to check
 * for the additional interface id that will be supported. For example:
 *
 * ```solidity
 * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
 *     return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
 * }
 * ```
 */
abstract contract ERC165Upgradeable is Initializable, IERC165 {
    function __ERC165_init() internal onlyInitializing {
    }

    function __ERC165_init_unchained() internal onlyInitializing {
    }
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual returns (bool) {
        return interfaceId == type(IERC165).interfaceId;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/Pausable.sol)

pragma solidity ^0.8.20;

import {ContextUpgradeable} from "../utils/ContextUpgradeable.sol";
import {Initializable} from "../proxy/utils/Initializable.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 PausableUpgradeable is Initializable, ContextUpgradeable {
    /// @custom:storage-location erc7201:openzeppelin.storage.Pausable
    struct PausableStorage {
        bool _paused;
    }

    // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.Pausable")) - 1)) & ~bytes32(uint256(0xff))
    bytes32 private constant PausableStorageLocation = 0xcd5ed15c6e187e77e9aee88184c21f4f2182ab5827cb3b7e07fbedcd63f03300;

    function _getPausableStorage() private pure returns (PausableStorage storage $) {
        assembly {
            $.slot := PausableStorageLocation
        }
    }

    /**
     * @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);

    /**
     * @dev The operation failed because the contract is paused.
     */
    error EnforcedPause();

    /**
     * @dev The operation failed because the contract is not paused.
     */
    error ExpectedPause();

    /**
     * @dev Initializes the contract in unpaused state.
     */
    function __Pausable_init() internal onlyInitializing {
        __Pausable_init_unchained();
    }

    function __Pausable_init_unchained() internal onlyInitializing {
        PausableStorage storage $ = _getPausableStorage();
        $._paused = false;
    }

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

    /**
     * @dev Modifier to make a function callable only when the contract is paused.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    modifier whenPaused() {
        _requirePaused();
        _;
    }

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

    /**
     * @dev Throws if the contract is paused.
     */
    function _requireNotPaused() internal view virtual {
        if (paused()) {
            revert EnforcedPause();
        }
    }

    /**
     * @dev Throws if the contract is not paused.
     */
    function _requirePaused() internal view virtual {
        if (!paused()) {
            revert ExpectedPause();
        }
    }

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

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/ReentrancyGuard.sol)

pragma solidity ^0.8.20;
import {Initializable} from "../proxy/utils/Initializable.sol";

/**
 * @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 EIP-1153 (transient storage) is available on the chain you're deploying at,
 * consider using {ReentrancyGuardTransient} instead.
 *
 * 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 ReentrancyGuardUpgradeable is Initializable {
    // 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;

    /// @custom:storage-location erc7201:openzeppelin.storage.ReentrancyGuard
    struct ReentrancyGuardStorage {
        uint256 _status;
    }

    // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.ReentrancyGuard")) - 1)) & ~bytes32(uint256(0xff))
    bytes32 private constant ReentrancyGuardStorageLocation = 0x9b779b17422d0df92223018b32b4d1fa46e071723d6817e2486d003becc55f00;

    function _getReentrancyGuardStorage() private pure returns (ReentrancyGuardStorage storage $) {
        assembly {
            $.slot := ReentrancyGuardStorageLocation
        }
    }

    /**
     * @dev Unauthorized reentrant call.
     */
    error ReentrancyGuardReentrantCall();

    function __ReentrancyGuard_init() internal onlyInitializing {
        __ReentrancyGuard_init_unchained();
    }

    function __ReentrancyGuard_init_unchained() internal onlyInitializing {
        ReentrancyGuardStorage storage $ = _getReentrancyGuardStorage();
        $._status = NOT_ENTERED;
    }

    /**
     * @dev Prevents a contract from calling itself, directly or indirectly.
     * Calling a `nonReentrant` function from another `nonReentrant`
     * function is not supported. It is possible to prevent this from happening
     * by making the `nonReentrant` function external, and making it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        _nonReentrantBefore();
        _;
        _nonReentrantAfter();
    }

    function _nonReentrantBefore() private {
        ReentrancyGuardStorage storage $ = _getReentrancyGuardStorage();
        // On the first call to nonReentrant, _status will be NOT_ENTERED
        if ($._status == ENTERED) {
            revert ReentrancyGuardReentrantCall();
        }

        // Any calls to nonReentrant after this point will fail
        $._status = ENTERED;
    }

    function _nonReentrantAfter() private {
        ReentrancyGuardStorage storage $ = _getReentrancyGuardStorage();
        // By storing the original value once again, a refund is triggered (see
        // https://eips.ethereum.org/EIPS/eip-2200)
        $._status = NOT_ENTERED;
    }

    /**
     * @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a
     * `nonReentrant` function in the call stack.
     */
    function _reentrancyGuardEntered() internal view returns (bool) {
        ReentrancyGuardStorage storage $ = _getReentrancyGuardStorage();
        return $._status == ENTERED;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (access/IAccessControl.sol)

pragma solidity ^0.8.20;

/**
 * @dev External interface of AccessControl declared to support ERC-165 detection.
 */
interface IAccessControl {
    /**
     * @dev The `account` is missing a role.
     */
    error AccessControlUnauthorizedAccount(address account, bytes32 neededRole);

    /**
     * @dev The caller of a function is not the expected one.
     *
     * NOTE: Don't confuse with {AccessControlUnauthorizedAccount}.
     */
    error AccessControlBadConfirmation();

    /**
     * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole`
     *
     * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite
     * {RoleAdminChanged} not being emitted signaling this.
     */
    event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole);

    /**
     * @dev Emitted when `account` is granted `role`.
     *
     * `sender` is the account that originated the contract call. This account bears the admin role (for the granted role).
     * Expected in cases where the role was granted using the internal {AccessControl-_grantRole}.
     */
    event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender);

    /**
     * @dev Emitted when `account` is revoked `role`.
     *
     * `sender` is the account that originated the contract call:
     *   - if using `revokeRole`, it is the admin role bearer
     *   - if using `renounceRole`, it is the role bearer (i.e. `account`)
     */
    event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender);

    /**
     * @dev Returns `true` if `account` has been granted `role`.
     */
    function hasRole(bytes32 role, address account) external view returns (bool);

    /**
     * @dev Returns the admin role that controls `role`. See {grantRole} and
     * {revokeRole}.
     *
     * To change a role's admin, use {AccessControl-_setRoleAdmin}.
     */
    function getRoleAdmin(bytes32 role) external view returns (bytes32);

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function grantRole(bytes32 role, address account) external;

    /**
     * @dev Revokes `role` from `account`.
     *
     * If `account` had been granted `role`, emits a {RoleRevoked} event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function revokeRole(bytes32 role, address account) external;

    /**
     * @dev Revokes `role` from the calling account.
     *
     * Roles are often managed via {grantRole} and {revokeRole}: this function's
     * purpose is to provide a mechanism for accounts to lose their privileges
     * if they are compromised (such as when a trusted device is misplaced).
     *
     * If the calling account had been granted `role`, emits a {RoleRevoked}
     * event.
     *
     * Requirements:
     *
     * - the caller must be `callerConfirmation`.
     */
    function renounceRole(bytes32 role, address callerConfirmation) external;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (interfaces/draft-IERC6093.sol)
pragma solidity ^0.8.20;

/**
 * @dev Standard ERC-20 Errors
 * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC-20 tokens.
 */
interface IERC20Errors {
    /**
     * @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     * @param balance Current balance for the interacting account.
     * @param needed Minimum amount required to perform a transfer.
     */
    error ERC20InsufficientBalance(address sender, uint256 balance, uint256 needed);

    /**
     * @dev Indicates a failure with the token `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     */
    error ERC20InvalidSender(address sender);

    /**
     * @dev Indicates a failure with the token `receiver`. Used in transfers.
     * @param receiver Address to which tokens are being transferred.
     */
    error ERC20InvalidReceiver(address receiver);

    /**
     * @dev Indicates a failure with the `spender`’s `allowance`. Used in transfers.
     * @param spender Address that may be allowed to operate on tokens without being their owner.
     * @param allowance Amount of tokens a `spender` is allowed to operate with.
     * @param needed Minimum amount required to perform a transfer.
     */
    error ERC20InsufficientAllowance(address spender, uint256 allowance, uint256 needed);

    /**
     * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
     * @param approver Address initiating an approval operation.
     */
    error ERC20InvalidApprover(address approver);

    /**
     * @dev Indicates a failure with the `spender` to be approved. Used in approvals.
     * @param spender Address that may be allowed to operate on tokens without being their owner.
     */
    error ERC20InvalidSpender(address spender);
}

/**
 * @dev Standard ERC-721 Errors
 * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC-721 tokens.
 */
interface IERC721Errors {
    /**
     * @dev Indicates that an address can't be an owner. For example, `address(0)` is a forbidden owner in ERC-20.
     * Used in balance queries.
     * @param owner Address of the current owner of a token.
     */
    error ERC721InvalidOwner(address owner);

    /**
     * @dev Indicates a `tokenId` whose `owner` is the zero address.
     * @param tokenId Identifier number of a token.
     */
    error ERC721NonexistentToken(uint256 tokenId);

    /**
     * @dev Indicates an error related to the ownership over a particular token. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     * @param tokenId Identifier number of a token.
     * @param owner Address of the current owner of a token.
     */
    error ERC721IncorrectOwner(address sender, uint256 tokenId, address owner);

    /**
     * @dev Indicates a failure with the token `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     */
    error ERC721InvalidSender(address sender);

    /**
     * @dev Indicates a failure with the token `receiver`. Used in transfers.
     * @param receiver Address to which tokens are being transferred.
     */
    error ERC721InvalidReceiver(address receiver);

    /**
     * @dev Indicates a failure with the `operator`’s approval. Used in transfers.
     * @param operator Address that may be allowed to operate on tokens without being their owner.
     * @param tokenId Identifier number of a token.
     */
    error ERC721InsufficientApproval(address operator, uint256 tokenId);

    /**
     * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
     * @param approver Address initiating an approval operation.
     */
    error ERC721InvalidApprover(address approver);

    /**
     * @dev Indicates a failure with the `operator` to be approved. Used in approvals.
     * @param operator Address that may be allowed to operate on tokens without being their owner.
     */
    error ERC721InvalidOperator(address operator);
}

/**
 * @dev Standard ERC-1155 Errors
 * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC-1155 tokens.
 */
interface IERC1155Errors {
    /**
     * @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     * @param balance Current balance for the interacting account.
     * @param needed Minimum amount required to perform a transfer.
     * @param tokenId Identifier number of a token.
     */
    error ERC1155InsufficientBalance(address sender, uint256 balance, uint256 needed, uint256 tokenId);

    /**
     * @dev Indicates a failure with the token `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     */
    error ERC1155InvalidSender(address sender);

    /**
     * @dev Indicates a failure with the token `receiver`. Used in transfers.
     * @param receiver Address to which tokens are being transferred.
     */
    error ERC1155InvalidReceiver(address receiver);

    /**
     * @dev Indicates a failure with the `operator`’s approval. Used in transfers.
     * @param operator Address that may be allowed to operate on tokens without being their owner.
     * @param owner Address of the current owner of a token.
     */
    error ERC1155MissingApprovalForAll(address operator, address owner);

    /**
     * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
     * @param approver Address initiating an approval operation.
     */
    error ERC1155InvalidApprover(address approver);

    /**
     * @dev Indicates a failure with the `operator` to be approved. Used in approvals.
     * @param operator Address that may be allowed to operate on tokens without being their owner.
     */
    error ERC1155InvalidOperator(address operator);

    /**
     * @dev Indicates an array length mismatch between ids and values in a safeBatchTransferFrom operation.
     * Used in batch transfers.
     * @param idsLength Length of the array of token identifiers
     * @param valuesLength Length of the array of token amounts
     */
    error ERC1155InvalidArrayLength(uint256 idsLength, uint256 valuesLength);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (token/ERC20/extensions/IERC20Metadata.sol)

pragma solidity ^0.8.20;

import {IERC20} from "../IERC20.sol";

/**
 * @dev Interface for the optional metadata functions from the ERC-20 standard.
 */
interface IERC20Metadata is IERC20 {
    /**
     * @dev Returns the name of the token.
     */
    function name() external view returns (string memory);

    /**
     * @dev Returns the symbol of the token.
     */
    function symbol() external view returns (string memory);

    /**
     * @dev Returns the decimals places of the token.
     */
    function decimals() external view returns (uint8);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC-20 standard as defined in the ERC.
 */
interface IERC20 {
    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);

    /**
     * @dev Returns the value of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

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

    /**
     * @dev Moves a `value` amount of tokens from the caller's account to `to`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address to, uint256 value) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets a `value` amount of tokens as the allowance of `spender` over the
     * caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 value) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to` using the
     * allowance mechanism. `value` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(address from, address to, uint256 value) external returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/introspection/IERC165.sol)

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC-165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[ERC].
 *
 * 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[ERC 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
pragma solidity ^0.8.20;

interface IAllStarsStaking {
    
    /**
     * @notice Represents a staking game
     * @param startBlock The block number when the game starts
     * @param endBlock The block number when the game ends
     * @param gameBlocks The block number for the game at the start
     * @param rewardAmount The amount of reward assigned for the game 
     * @param lastStakedToken The address of the token most recently staked in the game
     * @param stakeTokenSequence The sequence of staked token in sorted order
     * @param allowedTokens The addresses of allowed tokens for the game
     */
    struct Game {
        uint256 startBlock;
        uint256 endBlock;
        uint256 gameBlocks;
        uint256 rewardAmount;
        address creator;
        address lastStakedToken;
        address[] stakeTokenSequence;
        address[] allowedTokens;
        bool claimed;
    }

    /**
     * @notice Emitted when a new game is created
     * @param gameId The ID of the newly created game
     * @param startBlock The starting block of the game
     * @param endBlock The ending block of the game
     * @param rewardAmount The amount of reward in STAR tokens
     */
    event NewGameCreated(uint256 gameId, uint256 startBlock, uint256 endBlock, uint256 rewardAmount);

    /**
     * @notice Emitted when a user stakes tokens in a game
     * @param gameId The ID of the game
     * @param user The address of the user who staked
     * @param token The address of the token staked
     * @param amount The amount of tokens staked
     */
    event StakedInGame(uint256 gameId, address user, address token, uint256 amount);

    /**
     * @notice Emitted when a reward is claimed by a user
     * @param gameId The ID of the game
     * @param user The address of the user claiming the reward
     * @param rewardAmount The amount of reward in STAR tokens
     */
    event GameRewardClaimed(uint256 gameId, address user, uint256 rewardAmount);

    /**
     * @notice Emitted when a factor for the games are updated
     * @param newReductionFactor The new reduction factor for the end block
     * @param newIncreaseFactor The new increase factor for the end block
     * @param newDifferenceFactor The new difference factor for the end block
     */
    event FactorsUpdated(uint256 newReductionFactor, uint256 newIncreaseFactor, uint256 newDifferenceFactor);

    /**
     * @notice Emitted when a game is ended by admin
     * @param gameId The ID of the game
     */
    event GameEnded(uint256 gameId);

    /**
     * @notice Emitted when the allowed tokens list is updated
     * @param newAllowedTokens The new list of allowed tokens
     */
    event AllowedTokensUpdated(address[] newAllowedTokens);

    /**
     * @notice Emitted when reward claim deadline block no is updated.
     * @param by Admin address who updated the value
     * @param oldDeadline The previous deadline block no
     * @param newDeadline The new deadline block no
     * @param timestamp Time at which the value was updated. 
     */
    event RewardClaimDeadlineBlocksUpdated(address indexed by, uint256 oldDeadline, uint256 newDeadline, uint256 timestamp);
    
    /**
     * @notice Emitted when admin withdraws tokens from the contract.
     * @param by Address of the admin who did the withdrawal.
     * @param token Address of token withdrawn.
     * @param amount Amount of token withdrawn
     * @param timestamp Time at which withdrawal was done.
     */
    event AdminTokenWithdrawal(address indexed by, address indexed token, uint256 amount, uint256 timestamp);
    
    /**
     * @notice Creates a new lastMemeStanding game
     * @param startBlock The block number when the game starts
     * @param endBlock The block number when the game ends
     * @param rewardPoolAmount The reward amount for the game in star tokens
     */
    function createNewGame(uint256 startBlock, uint256 endBlock, uint256 rewardPoolAmount) external;

    /**
     * @notice Allows users to stake tokens to a game
     * @param gameId The ID of the game in which to stake
     * @param token The address of the token to stake
     * @param amount The amount of tokens to stake
     */
    function stakeInGame(uint256 gameId, address token, uint256 amount) external;
    
    /**
     * @notice Allows users to claim rewards for staking on the winning token
     * @param gameId The ID of the phase for which the reward is claimed
     */
    function claimAllGameRewards(uint256 gameId) external;

    /**
     * @notice Updates the reduction and increase factors for staking mechanics
     * @param newCountdownReductionFactor The new reduction factor for the end block
     * @param newFinalGameFactor The new increase factor for the end block
     * @param newFinalResetFactor The new difference factor for the end block
     */
    function updateGameFactors(uint256 newCountdownReductionFactor, uint256 newFinalGameFactor, uint256 newFinalResetFactor) external;    
    
    /**
     * @notice Allows admin to end game if no one has staked
     * @param gameId The ID of the game to end
     */
    function endGame(uint256 gameId) external;

    /**
     * @notice Updates the allowed tokens array to be used in the next game
     * @param newAllowedTokens_ The new list of allowed tokens for staking
     */
    function updateAllowedTokens(address[] memory newAllowedTokens_) external;

    /**
     * @notice Function to update rewardClaimDeadlineBlocks no.
     * @param _deadlineBlocks No of blocks after a game's end, after which rewards will not be given.
     */
    function updateRewardClaimDeadlineBlocks(uint256 _deadlineBlocks) external;

    /**
     * @notice Function for admin to withdraw tokens from the contract.
     * @param _token Address of token to withdraw.
     * @param _amount Token amount to withdraw.
     */
    function withdrawTokens(address _token, uint256 _amount) external;
}

{
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "metadata": {
    "bytecodeHash": "none"
  },
  "evmVersion": "paris",
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  }
}

• No Contract Security Audit Submitted- Submit Audit Here

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puts":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"startBlock","type":"uint256"},{"internalType":"uint256","name":"endBlock","type":"uint256"},{"internalType":"uint256","name":"rewardPoolAmount","type":"uint256"}],"name":"createNewGame","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"gameId","type":"uint256"}],"name":"endGame","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"finalGameFactor","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"finalResetFactor","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"gameIdCounter","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"gameId","type":"uint256"}],"name":"getGameDetails","outputs":[{"components":[{"internalType":"uint256","name":"startBlock","type":"uint256"},{"internalType":"uint256","name":"endBlock","type":"uint256"},{"internalType":"uint256","name":"gameBlocks","type":"uint256"},{"internalType":"uint256","name":"rewardAmount","type":"uint256"},{"internalType":"address","name":"creator","type":"address"},{"internalType":"address","name":"lastStakedToken","type":"address"},{"internalType":"address[]","name":"stakeTokenSequence","type":"address[]"},{"internalType":"address[]","name":"allowedTokens","type":"address[]"},{"internalType":"bool","name":"claimed","type":"bool"}],"internalType":"struct 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