/**
 * Game Loop Module for AI Interactive Fiction
 * Manages the main game logic and connects various modules
 */
import { BaseModule } from './base-module.js';

class GameLoopModule extends BaseModule {
    constructor() {
        super('game-loop', 'Game Loop');
        
        // Dependencies
        this.dependencies = ['ui-controller', 'socket-client', 'text-buffer', 'sentence-queue', 'playback-coordinator', 'animation-queue', 'audio-manager', 'tts-factory', 'ui-input-handler'];
        
        // Game state
        this.gameState = {
            started: false,
            canLoad: false,
            currentRoom: null,
            inventory: [],
            commandHistory: []
        };
        
        this.isRunning = false;
        
        // Bind methods using parent's bindMethods utility
        this.bindMethods([
            'start',
            'setupUiEventListeners',
            'setupSocketEventListeners',
            'updateGameState',
            'updateUIState',
            'refreshGameApiState',
            'requestStartGame',
            'requestSaveGame',
            'requestLoadGame',
            'resetClientPlaybackAndDisplay'
        ]);
    }
    
    async initialize() {
        this.reportProgress(100, "Game loop initialized");
        return true;
    }
    
    start() {
        console.log("GameLoop: Starting game sequence...");
        
        try {
            // The dependencies are now automatically available via getModule
            this.updateUIState();
            this.setupUiEventListeners();
            
            console.log("GameLoop: Setting up socket listeners and connecting...");
            
            // Set up socket event listeners and connect
            this.setupSocketEventListeners();
            
            // Set the game loop as running
            this.isRunning = true;
        } catch (error) {
            console.error("Error starting game loop:", error);
        }
    }

    setupUiEventListeners() {
        if (this.uiEventsBound) return;
        this.uiEventsBound = true;

        document.addEventListener('ui:game:restart', () => this.requestStartGame());
        document.addEventListener('ui:game:save', () => this.requestSaveGame());
        document.addEventListener('ui:game:load', () => this.requestLoadGame());
    }
    
    setupSocketEventListeners() {
        // Get the socket client module using parent's getModule method
        const socketClient = this.getModule('socket-client');
        
        if (!socketClient) {
            console.error("Socket client module not found");
            return;
        }
        
        // Connect UI controller to socket client for command handling
        const uiController = this.getModule('ui-controller');
        
        if (uiController) {
            uiController.socketClient = socketClient;
        } else {
            console.warn("GameLoop: UI Controller not ready for Socket Client assignment.");
        }
        
        // Listen for socket connection event
        socketClient.on('connect', () => {
            console.log("GameLoop: Socket connected event received.");
            
            this.refreshGameApiState();
        });
        
        // Listen for game state updates
        socketClient.on('gameStateUpdate', (data) => {
            console.log("GameLoop: Game state update received", data);
            this.updateGameState(data);
        });
        
        // Listen for narrative responses
        socketClient.on('narrativeResponse', (data) => {
            console.log("GameLoop: Narrative response received", data);
            // Text processing is handled by socket-client -> text-buffer -> ui-controller pipeline
        });
        
        socketClient.on('gameSaved', () => {
            this.gameState.canLoad = true;
            this.updateUIState();
        });

        socketClient.on('gameLoaded', () => {
            this.gameState.started = true;
            this.gameState.canSave = true;
            this.gameState.canLoad = true;
            this.updateUIState();
        });
        
        // Connect to the socket server
        socketClient.connect().then(success => {
            if (success) {
                console.log("GameLoop: Socket connection established successfully.");
            } else {
                console.error("GameLoop: Failed to connect to socket server");
            }
        });
    }

    async refreshGameApiState() {
        const socketClient = this.getModule('socket-client');
        if (!socketClient || !socketClient.getConnectionStatus()) return;

        const [running, hasSave] = await Promise.all([
            socketClient.isGameRunning(),
            socketClient.hasSaveGame(1)
        ]);

        this.gameState.started = Boolean(running?.result);
        this.gameState.canSave = this.gameState.started;
        this.gameState.canLoad = Boolean(hasSave?.result);
        this.updateUIState();
    }
    
    /**
     * Update the game state
     * @param {Object} data - New game state data
     */
    updateGameState(data) {
        if (!data) return;
        
        // Update game state
        if (data.currentRoom) {
            this.gameState.currentRoom = data.currentRoom;
        }
        
        if (data.inventory) {
            this.gameState.inventory = data.inventory;
        }
        
        // Update UI with new game state
        this.updateUIState();
    }
    
    /**
     * Update UI with current game state
     */
    updateUIState() {
        const uiController = this.getModule('ui-controller');
        if (!uiController) return;
        
        // Update UI components based on game state
        const state = {
            canRestart: true,
            canSave: Boolean(this.gameState.started),
            canLoad: Boolean(this.gameState.canLoad),
            gameStarted: Boolean(this.gameState.started)
        };
        document.body.dataset.gameRunning = state.gameStarted ? 'true' : 'false';
        uiController.updateButtonStates(state);
    }
    
    /**
     * Request to start a new game
     */
    async requestStartGame() {
        const socketClient = this.getModule('socket-client');
        if (!socketClient) return;

        await this.resetClientPlaybackAndDisplay();
        const response = await socketClient.newGame();
        if (!response?.success) {
            console.error('GameLoop: newGame failed', response);
            return;
        }
        this.gameState.started = true;
        this.gameState.canSave = true;
        this.gameState.canLoad = Boolean(response.canLoad);
        this.updateUIState();
    }
    
    /**
     * Request to save the current game
     */
    async requestSaveGame() {
        const socketClient = this.getModule('socket-client');
        if (!socketClient || !this.gameState.started) return;

        const response = await socketClient.saveGame(1);
        if (response?.success) {
            this.gameState.canLoad = true;
            this.updateUIState();
        }
    }
    
    /**
     * Request to load a saved game
     */
    async requestLoadGame() {
        const socketClient = this.getModule('socket-client');
        if (!socketClient) return;

        const hasSave = await socketClient.hasSaveGame(1);
        if (!hasSave?.result) {
            this.gameState.canLoad = false;
            this.updateUIState();
            return;
        }

        await this.resetClientPlaybackAndDisplay();
        const response = await socketClient.loadGame(1);
        if (response?.success) {
            this.gameState.started = true;
            this.gameState.canSave = true;
            this.gameState.canLoad = true;
            this.updateUIState();
        }
    }

    async resetClientPlaybackAndDisplay() {
        const playbackCoordinator = this.getModule('playback-coordinator');
        if (playbackCoordinator && typeof playbackCoordinator.stop === 'function') {
            await playbackCoordinator.stop();
        }

        const animationQueue = this.getModule('animation-queue');
        if (animationQueue && typeof animationQueue.clearAll === 'function') {
            animationQueue.clearAll();
        }

        const ttsFactory = this.getModule('tts-factory');
        if (ttsFactory && typeof ttsFactory.stop === 'function') {
            ttsFactory.stop();
        }

        const audioManager = this.getModule('audio-manager');
        if (audioManager && typeof audioManager.stopAllSounds === 'function') {
            audioManager.stopAllSounds();
        }

        const sentenceQueue = this.getModule('sentence-queue');
        if (sentenceQueue && typeof sentenceQueue.clear === 'function') {
            sentenceQueue.clear();
        }

        const textBuffer = this.getModule('text-buffer');
        if (textBuffer && typeof textBuffer.clear === 'function') {
            textBuffer.clear();
        }

        const uiController = this.getModule('ui-controller');
        if (uiController) {
            uiController.clearDisplay();
        }

        const inputHandler = this.getModule('ui-input-handler');
        if (inputHandler && typeof inputHandler.clearHistory === 'function') {
            inputHandler.clearHistory();
        }
    }
    
}

// Create the singleton instance
const GameLoop = new GameLoopModule();

// Export the module
export { GameLoop };