/**
 * Socket controller — placeholder for real-time features.
 *
 * Real-time features now use API-based polling instead of Socket.IO
 * or Supabase Realtime.  This file exists as a compatibility layer
 * for components that still reference SocketController.
 *
 * The Socket.IO server at /server/index.js is available for future
 * use if HF Spaces WebSocket support improves, but for now all
 * real-time operations go through /api/matchmaking and /api/rooms.
 */

class SocketController {
  private static instance: SocketController;
  public socket: null = null;
  public roomCode: string | null = null;
  public isHost: boolean = false;

  private constructor() {}

  public static getInstance(): SocketController {
    if (!SocketController.instance) {
      SocketController.instance = new SocketController();
    }
    return SocketController.instance;
  }
}

export const socketController = SocketController.getInstance();