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

import "@openzeppelin/contracts/utils/ReentrancyGuard.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/utils/Pausable.sol";

/**
 * @title IKitsuBaddiesERC1155
 * @notice Minimal interface for external NFT contract that mints prizes
 * @dev Compatible with KitsuBaddiesERC1155.
 */
interface IKitsuBaddiesERC1155 {
    /**
     * @notice Mint an NFT with a specific id to a recipient
     * @param collectionId The address to receive the NFT
     * @param to The token id to mint (1-9 for slot machine results)
     * @param data Additional data with no specified format, sent in the mint call.     
     */
    function mint(uint256 collectionId, address to, bytes memory data) external returns (uint256 id);
}

/**
 * @title IRandomnessProvider
 * @notice Interface for external randomness provider
 * @dev Allows keeping randomness logic obfuscated in a separate unverified contract
 */
interface IRandomnessProvider {
    /**
     * @notice Generate a random number for probability calculations [0..999]
     * @param salt Additional entropy
     * @return Random number between 0 and 999
     */
    function getRandomForProbability(uint256 salt) external returns (uint256);
}

/**
 * @title SlotMachine
 * @notice On-chain slot machine with internal balance system, fixed spin cost, and NFT rewards
 * @dev Each user deposits ETH into an internal balance. Each spin costs `ticketPrice` or consumes a free spin.
 *      A spin generates 1 random result with weighted probabilities:
 *      
 *      Prize Distribution (81.5% win rate):
 *      - Collections 1-4: 14.0% each → mint NFT
 *      - Collections 5-7: 7.5% each → mint NFT
 *      - Collections 8-9: 1.5% each → mint NFT
 *      - Loss: 18.5% → no reward
 * 
 * ⚠️  SECURITY WARNING: This contract uses pseudo-random generation based on block properties.
 *     This is ONLY suitable for demonstration/testing. For production, integrate Chainlink VRF.
 *     
 * TODO: Phase 2 - Replace _rand() with Chainlink VRF integration for secure randomness
 */
contract SlotMachine is ReentrancyGuard, Ownable, Pausable {
    
    // ========== State Variables ==========
    
    /// @notice Internal ETH balance per user (in wei)
    mapping(address => uint256) public balances;
    
    /// @notice Free spins available per user
    mapping(address => uint256) public freeSpins;
    
    /// @notice Cost per spin in wei
    uint256 public ticketPrice;
    
    /// @notice External NFT contract for minting prizes
    IKitsuBaddiesERC1155 public kitsuBaddiesERC1155;
    
    /// @notice External randomness provider (unverified contract for obfuscation)
    IRandomnessProvider public randomnessProvider;
    
    /// @notice Total number of spins played across all users
    uint256 public totalSpins;
    
    /// @notice Total number of NFTs minted as prizes
    uint256 public totalNFTsMinted;
    
    /// @notice Cumulative probability thresholds for each result (out of 1000)
    /// @dev Array indices 0-9 represent results 1-10. Value is the upper bound (exclusive) for that result.
    ///      Example: [140, 280, 420, 560, 635, 710, 785, 800, 815, 1000]
    ///      means: 1 if roll < 140, 2 if roll < 280, etc.
    uint256[10] public probabilityThresholds;
    
    // ========== Events ==========
    
    /// @notice Emitted when a user deposits ETH to their internal balance
    event Deposited(address indexed user, uint256 amount);
    
    // Note: Withdrawn event removed - withdrawals are not allowed
    
    /// @notice Emitted after each spin with full result details
    /// @param user The player who spun
    /// @param result The result [1..10]
    /// @param minted Whether an NFT was minted (true for 1-9, false for 10)
    event Spin(
        address indexed user,
        uint8 result,
        bool minted
    );
    
    /// @notice Emitted when admin updates the ticket price
    event TicketPriceUpdated(uint256 oldPrice, uint256 newPrice);
    
    /// @notice Emitted when admin updates the prize NFT contract
    event KitsuBaddiesERC1155Updated(address oldNft, address newNft);
    
    /// @notice Emitted when admin updates the randomness provider contract
    event RandomnessProviderUpdated(address oldProvider, address newProvider);
    
    /// @notice Emitted when owner gifts free spins to a user
    event FreeSpinsGranted(address indexed recipient, uint256 amount);

    /// @notice Emitted when owner withdraws earnings from the contract
    event EarningsWithdrawn(uint256 amount);
    
    /// @notice Emitted when owner updates probability distribution
    event ProbabilitiesUpdated(uint256[10] newThresholds);
    
    // ========== Constructor ==========
    
    /**
     * @notice Deploy the slot machine with initial configuration     
     * @param _kitsuBaddiesERC1155 Address of the KitsuBaddiesERC1155 contract.
     * @param _randomnessProvider Address of the RandomnessProvider contract (unverified for obfuscation).
     */
    constructor(address _kitsuBaddiesERC1155, address _randomnessProvider) Ownable(msg.sender) {
        // Set ticket price to 0.001 ether
        ticketPrice = 0.001 ether;
        
        // Set the KitsuBaddiesERC1155 contract
        if (_kitsuBaddiesERC1155 != address(0)) {
            kitsuBaddiesERC1155 = IKitsuBaddiesERC1155(_kitsuBaddiesERC1155);
        }
        
        // Set the RandomnessProvider contract
        require(_randomnessProvider != address(0), "KITSU_SLOT: RandomnessProvider address cannot be zero");
        randomnessProvider = IRandomnessProvider(_randomnessProvider);
        
        // Initialize default probability thresholds (cumulative, out of 1000)
        // [140, 280, 420, 560, 635, 710, 785, 800, 815, 1000]
        // Results in: 14%, 14%, 14%, 14%, 7.5%, 7.5%, 7.5%, 1.5%, 1.5%, 18.5%
        probabilityThresholds[0] = 140;   // Collection 1: 14.0%
        probabilityThresholds[1] = 280;   // Collection 2: 14.0%
        probabilityThresholds[2] = 420;   // Collection 3: 14.0%
        probabilityThresholds[3] = 560;   // Collection 4: 14.0%
        probabilityThresholds[4] = 635;   // Collection 5: 7.5%
        probabilityThresholds[5] = 710;   // Collection 6: 7.5%
        probabilityThresholds[6] = 785;   // Collection 7: 7.5%
        probabilityThresholds[7] = 800;   // Collection 8: 1.5%
        probabilityThresholds[8] = 815;   // Collection 9: 1.5%
        probabilityThresholds[9] = 1000;  // Loss (10): 18.5%
    }
    
    // ========== Public/External Functions ==========
    
    /**
     * @notice This function buys tickets for the player.
     * @dev Adds msg.value to the sender's internal balance
     * @dev the amount its capped to 100 tickets.
     */
    function depositETH() external payable whenNotPaused {
        require(msg.value >= ticketPrice, "KITSU_SLOT: You are buying less than 1 ticket.");
        require(msg.value <= ticketPrice * 100, "KITSU_SLOT: You are buying too many tickets.");
        balances[msg.sender] += msg.value;
        emit Deposited(msg.sender, msg.value);
    }
    
    // Note: Withdraw function removed - once you buy tickets, you cannot withdraw
    // This mimics a real slot machine where you cannot take back inserted coins
    
    /**
     * @notice Play a spin: generates 1 random result [1..10] and mints NFT if result is 1-9
     * @return result The result [1..10]
     * @dev Consumes 1 free spin if available; otherwise deducts ticketPrice from balance.
     *      Result 1-9 mints an NFT with that collection id.
     *      Result 10 is a loss - user gets nothing.
     *      Protected against reentrancy (NFT mint could be external call).
     *      Can be paused by owner in emergency situations.
     */
    function spin() external whenNotPaused nonReentrant returns (uint8 result) {
        // Determine payment method
        if (freeSpins[msg.sender] > 0) {
            // Use a free spin
            freeSpins[msg.sender] -= 1;
        } else {
            // Pay with balance
            require(balances[msg.sender] >= ticketPrice, "KITSU_SLOT: Insufficient balance and no free spins");
            balances[msg.sender] -= ticketPrice;
        }
        
        // Generate 1 random result [1..10]
        result = _draw();
        
        bool minted = false;
        
        // Mint NFT only if result is 1-9 (result 10 is a loss)
        if (result <= 9) {
            require(address(kitsuBaddiesERC1155) != address(0), "KITSU_SLOT: KitsuBaddiesERC1155 contract not configured");
            kitsuBaddiesERC1155.mint(uint256(result), msg.sender, "");
            minted = true;
            totalNFTsMinted++;
        }
        // else: result is 10, user loses
        
        totalSpins++;
        
        emit Spin(msg.sender, result, minted);
        
        return result;
    }
    
    // ========== Admin Functions ==========
    
    /**
     * @notice Update the ticket price
     * @param newPrice New price per spin in wei (must be > 0)
     */
    function setTicketPrice(uint256 newPrice) external onlyOwner {
        require(newPrice > 0, "KITSU_SLOT: Ticket price must be > 0");
        uint256 oldPrice = ticketPrice;
        ticketPrice = newPrice;
        emit TicketPriceUpdated(oldPrice, newPrice);
    }
    
    /**
     * @notice Update the prize NFT contract address
     * @param nft Address of the new prize NFT contract
     * @dev Cannot be set to address(0) once configured (prevents accidental breaking of game)
     */
    function setKitsuBaddiesERC1155(address nft) external onlyOwner {
        require(nft != address(0), "KITSU_SLOT: NFT address cannot be zero");
        address oldNft = address(kitsuBaddiesERC1155);
        kitsuBaddiesERC1155 = IKitsuBaddiesERC1155(nft);
        emit KitsuBaddiesERC1155Updated(oldNft, nft);
    }
    
    /**
     * @notice Update the randomness provider contract address
     * @param provider Address of the new RandomnessProvider contract
     * @dev Use this to upgrade randomness logic or switch to a different algorithm
     *      The new contract should remain unverified to maintain obfuscation
     */
    function setRandomnessProvider(address provider) external onlyOwner {
        require(provider != address(0), "KITSU_SLOT: Provider address cannot be zero");
        address oldProvider = address(randomnessProvider);
        randomnessProvider = IRandomnessProvider(provider);
        emit RandomnessProviderUpdated(oldProvider, provider);
    }
    
    /**
     * @notice Gift free spins to a user
     * @param recipient Address to receive free spins
     * @param amount Number of free spins to gift (must be > 0)
     * @dev Allows owner to give promotional free spins to users
     */
    function grantFreeSpins(address recipient, uint256 amount) external onlyOwner {
        require(recipient != address(0), "KITSU_SLOT: Recipient cannot be zero address");
        require(amount > 0, "KITSU_SLOT: Amount must be > 0");
        
        freeSpins[recipient] += amount;
        emit FreeSpinsGranted(recipient, amount);
    }
    
    /**
     * @notice Batch gift free spins to multiple users
     * @param recipients Array of addresses to receive free spins
     * @param amount Number of free spins to gift to each recipient (must be > 0)
     * @dev Useful for promotions and airdrops. All recipients get the same amount.
     */
    function batchGrantFreeSpins(address[] calldata recipients, uint256 amount) external onlyOwner {
        require(amount > 0, "KITSU_SLOT: Amount must be > 0");
        require(recipients.length > 0, "KITSU_SLOT: Recipients array is empty");
        
        for (uint256 i = 0; i < recipients.length; i++) {
            require(recipients[i] != address(0), "KITSU_SLOT: Recipient cannot be zero address");
            freeSpins[recipients[i]] += amount;
            emit FreeSpinsGranted(recipients[i], amount);
        }
    }
    
    /**
     * @notice Pause the contract (emergency use only)
     * @dev Prevents spins and deposits while paused. Only owner can pause.
     */
    function pause() external onlyOwner {
        _pause();
    }
    
    /**
     * @notice Unpause the contract
     * @dev Resumes normal operations. Only owner can unpause.
     */
    function unpause() external onlyOwner {
        _unpause();
    }
    
    /**
     * @notice Update probability distribution for spin results
     * @param newThresholds Array of 10 cumulative probability thresholds (out of 1000)
     * @dev Each value must be strictly greater than the previous, and the last must be exactly 1000.
     *      Example: [140, 280, 420, 560, 635, 710, 785, 800, 815, 1000]
     *      Results in: 14%, 14%, 14%, 14%, 7.5%, 7.5%, 7.5%, 1.5%, 1.5%, 18.5%
     * 
     *      To calculate individual probabilities:
     *      - Collection 1: newThresholds[0] (e.g., 140 = 14%)
     *      - Collection 2: newThresholds[1] - newThresholds[0] (e.g., 280-140 = 140 = 14%)
     *      - Collection N: newThresholds[N-1] - newThresholds[N-2]
     */
    function setProbabilities(uint256[10] calldata newThresholds) external onlyOwner {
        // Validate that thresholds are strictly increasing
        uint256 previous = 0;
        for (uint8 i = 0; i < 10; i++) {
            require(newThresholds[i] > previous, "KITSU_SLOT: Thresholds must be strictly increasing");
            previous = newThresholds[i];
        }
        
        // Validate that the last threshold is exactly 1000 (100%)
        require(newThresholds[9] == 1000, "KITSU_SLOT: Last threshold must be exactly 1000");
        
        // Update the probability thresholds
        for (uint8 i = 0; i < 10; i++) {
            probabilityThresholds[i] = newThresholds[i];
        }
        
        emit ProbabilitiesUpdated(newThresholds);
    }
    
    /**
     * @notice Earnings withdrawal of contract balance by owner
     * @dev Allows owner to withdraw earnings from the contract     
     */
    function withdrawEarnings() external onlyOwner nonReentrant {
        uint256 amount = address(this).balance;
        require(amount > 0, "KITSU_SLOT: No earnings to withdraw");        
        (bool success, ) = payable(owner()).call{value: amount}("");
        require(success, "ETH transfer failed");
    }
    
    // ========== Internal Functions ==========
    
    /**
     * @notice Generate 1 random result with weighted probabilities
     * @return result The result [1..10], where 10 represents a loss
     * @dev Uses external RandomnessProvider for obfuscated randomness logic.
     *      TODO: Replace with Chainlink VRF in phase 2 for production.
     *      
     *      Uses dynamic probabilityThresholds array for flexible probability distribution.
     *      The array contains cumulative thresholds out of 1000.
     */
    function _draw() internal returns (uint8 result) {
        // Get random number from external provider [0..999]
        uint256 roll = randomnessProvider.getRandomForProbability(block.timestamp);
        
        // Map roll to result based on cumulative probability thresholds
        for (uint8 i = 0; i < 10; i++) {
            if (roll < probabilityThresholds[i]) {
                return i + 1; // Return result 1-10
            }
        }
        
        // Fallback (should never reach here if thresholds are properly configured)
        return 10;
    }
    
    // ========== View Functions ==========
    
    /**
     * @notice Get the total ETH balance held by the contract
     * @return Contract's ETH balance in wei
     */
    function getContractBalance() external view returns (uint256) {
        return address(this).balance;
    }
    
    /**
     * @notice Get a user's internal balance
     * @param user Address to query
     * @return User's internal balance in wei
     */
    function getBalance(address user) external view returns (uint256) {
        return balances[user];
    }
    
    /**
     * @notice Get a user's free spins count
     * @param user Address to query
     * @return Number of free spins available
     */
    function getFreeSpins(address user) external view returns (uint256) {
        return freeSpins[user];
    }
    
    /**
     * @notice Check if a user can spin
     * @param user Address to query
     * @return True if user has free spins or sufficient balance to spin
     */
    function canSpin(address user) external view returns (bool) {
        return freeSpins[user] > 0 || balances[user] >= ticketPrice;
    }
    
    /**
     * @notice Get individual probabilities for each result (not cumulative)
     * @return probs Array of 10 individual probabilities (out of 1000)
     * @dev Converts cumulative thresholds to individual probabilities for easier understanding
     *      Index 0-8 represent collections 1-9, Index 9 represents loss (result 10)
     */
    function getIndividualProbabilities() external view returns (uint256[10] memory probs) {
        probs[0] = probabilityThresholds[0]; // First threshold is the probability itself
        
        for (uint8 i = 1; i < 10; i++) {
            probs[i] = probabilityThresholds[i] - probabilityThresholds[i - 1];
        }
        
        return probs;
    }
    
    // ========== Receive ETH ==========
    
    /**
     * @notice Fallback to receive direct ETH transfers
     * @dev Does NOT add to sender's balance (prevents accidental locks)
     *      Use depositETH() to add to your balance
     */
    receive() external payable {
        // Accept ETH but don't credit to any balance
        // Owner can withdraw via withdrawEarnings if needed
    }
}

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

pragma solidity ^0.8.20;

import {Context} from "../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.
 *
 * The initial owner is set to the address provided by the deployer. This can
 * later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract Ownable is Context {
    address private _owner;

    /**
     * @dev The caller account is not authorized to perform an operation.
     */
    error OwnableUnauthorizedAccount(address account);

    /**
     * @dev The owner is not a valid owner account. (eg. `address(0)`)
     */
    error OwnableInvalidOwner(address owner);

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

    /**
     * @dev Initializes the contract setting the address provided by the deployer as the initial owner.
     */
    constructor(address initialOwner) {
        if (initialOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _transferOwnership(initialOwner);
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        _checkOwner();
        _;
    }

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

    /**
     * @dev Throws if the sender is not the owner.
     */
    function _checkOwner() internal view virtual {
        if (owner() != _msgSender()) {
            revert OwnableUnauthorizedAccount(_msgSender());
        }
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby disabling any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        if (newOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

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

pragma solidity ^0.8.20;

/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

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

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.3.0) (utils/Pausable.sol)

pragma solidity ^0.8.20;

import {Context} from "../utils/Context.sol";

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

    /**
     * @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 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) {
        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 {
        _paused = true;
        emit Paused(_msgSender());
    }

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

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

pragma solidity ^0.8.20;

/**
 * @dev Contract module that helps prevent reentrant calls to a function.
 *
 * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
 * available, which can be applied to functions to make sure there are no nested
 * (reentrant) calls to them.
 *
 * Note that because there is a single `nonReentrant` guard, functions marked as
 * `nonReentrant` may not call one another. This can be worked around by making
 * those functions `private`, and then adding `external` `nonReentrant` entry
 * points to them.
 *
 * TIP: If 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 ReentrancyGuard {
    // Booleans are more expensive than uint256 or any type that takes up a full
    // word because each write operation emits an extra SLOAD to first read the
    // slot's contents, replace the bits taken up by the boolean, and then write
    // back. This is the compiler's defense against contract upgrades and
    // pointer aliasing, and it cannot be disabled.

    // The values being non-zero value makes deployment a bit more expensive,
    // but in exchange the refund on every call to nonReentrant will be lower in
    // amount. Since refunds are capped to a percentage of the total
    // transaction's gas, it is best to keep them low in cases like this one, to
    // increase the likelihood of the full refund coming into effect.
    uint256 private constant NOT_ENTERED = 1;
    uint256 private constant ENTERED = 2;

    uint256 private _status;

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

    constructor() {
        _status = NOT_ENTERED;
    }

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

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

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

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

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

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

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"address","name":"_kitsuBaddiesERC1155","type":"address"},{"internalType":"address","name":"_randomnessProvider","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"EnforcedPause","type":"error"},{"inputs":[],"name":"ExpectedPause","type":"error"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"OwnableInvalidOwner","type":"error"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"OwnableUnauthorizedAccount","type":"error"},{"inputs":[],"name":"ReentrancyGuardReentrantCall","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"Deposited","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"EarningsWithdrawn","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"recipient","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"FreeSpinsGranted","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"oldNft","type":"address"},{"indexed":false,"internalType":"address","name":"newNft","type":"address"}],"name":"KitsuBaddiesERC1155Updated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Paused","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256[10]","name":"newThresholds","type":"uint256[10]"}],"name":"ProbabilitiesUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"oldProvider","type":"address"},{"indexed":false,"internalType":"address","name":"newProvider","type":"address"}],"name":"RandomnessProviderUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":false,"internalType":"uint8","name":"result","type":"uint8"},{"indexed":false,"internalType":"bool","name":"minted","type":"bool"}],"name":"Spin","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"oldPrice","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"newPrice","type":"uint256"}],"name":"TicketPriceUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Unpaused","type":"event"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"balances","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address[]","name":"recipients","type":"address[]"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"batchGrantFreeSpins","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"}],"name":"canSpin","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"depositETH","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"freeSpins","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"}],"name":"getBalance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getContractBalance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"}],"name":"getFreeSpins","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getIndividualProbabilities","outputs":[{"internalType":"uint256[10]","name":"probs","type":"uint256[10]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"grantFreeSpins","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"kitsuBaddiesERC1155","outputs":[{"internalType":"contract IKitsuBaddiesERC1155","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"pause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"paused","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"probabilityThresholds","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"randomnessProvider","outputs":[{"internalType":"contract IRandomnessProvider","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"nft","type":"address"}],"name":"setKitsuBaddiesERC1155","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256[10]","name":"newThresholds","type":"uint256[10]"}],"name":"setProbabilities","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"provider","type":"address"}],"name":"setRandomnessProvider","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"newPrice","type":"uint256"}],"name":"setTicketPrice","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"spin","outputs":[{"internalType":"uint8","name":"result","type":"uint8"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"ticketPrice","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalNFTsMinted","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSpins","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":[],"name":"unpause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"withdrawEarnings","outputs":[],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]

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000000000000000000000000a5469b9f8291da3abaa07c253a57537b949626f60000000000000000000000003120aabfdd9c352a3000254aa3408982cb911db8

-----Decoded View---------------
Arg [0] : _kitsuBaddiesERC1155 (address): 0xA5469b9F8291DA3AbaA07C253a57537B949626f6
Arg [1] : _randomnessProvider (address): 0x3120aAbfdd9C352a3000254aA3408982CB911dB8

-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 000000000000000000000000a5469b9f8291da3abaa07c253a57537b949626f6
Arg [1] : 0000000000000000000000003120aabfdd9c352a3000254aa3408982cb911db8