import express from 'express';
import cors from 'cors';
import { createServer } from 'http';
import { PATHS, SERVER } from './config/constants.js';
import { rateLimitMiddleware } from './middlewares/rateLimit.js';
import { initMongoDB } from './services/mongodb.js';
import { initVAPIDKeys } from './services/webPush.js';
import { initWebSocket } from './services/websocket.js';
import { startArticleMonitoring } from './services/articleMonitor.js';
import { initFileWatcher } from './services/fileWatcher.js';
import routes from './routes/index.js';
import workersRouter from './routes/workers.js';
import articlesRouter from './routes/articles.js';
import favoritesRouter from './routes/favorites.js';
import logsRouter from './routes/logs.js';
import configRouter from './routes/config.js';
import telegramRouter from './routes/telegram.js';
import pushRouter from './routes/push.js';
import usersRouter from './routes/users.js';
import adminRouter from './routes/admin.js';
import subscriptionRouter from './routes/subscription.js';

const app = express();
const server = createServer(app);

// Configurar Express para confiar en proxies (necesario para obtener IP real)
app.set('trust proxy', true);

// Middlewares globales
app.use(cors());
app.use(express.json());

// Aplicar rate limiting a todas las rutas API
app.use('/api', rateLimitMiddleware);

// Inicializar VAPID keys para Web Push
initVAPIDKeys();

// Inicializar WebSocket
initWebSocket(server);

// Rutas API
app.use('/api', routes);
app.use('/api/workers', workersRouter);
app.use('/api/articles', articlesRouter);
app.use('/api/favorites', favoritesRouter);
app.use('/api/logs', logsRouter);
app.use('/api/config', configRouter);
app.use('/api/telegram', telegramRouter);
app.use('/api/push', pushRouter);
app.use('/api/users', usersRouter);
app.use('/api/admin', adminRouter);
app.use('/api/subscription', subscriptionRouter);

// Inicializar servidor
async function startServer() {
  try {
    // Inicializar MongoDB
    await initMongoDB();
    
    // Iniciar monitoreo de artículos nuevos
    await startArticleMonitoring();
    
    // Inicializar file watcher
    initFileWatcher();
    
    // Iniciar servidor HTTP
    server.listen(SERVER.PORT, () => {
      console.log(`🚀 Servidor backend ejecutándose en http://localhost:${SERVER.PORT}`);
      console.log(`📡 WebSocket disponible en ws://localhost:${SERVER.PORT}/ws`);
    });
  } catch (error) {
    console.error('Error al iniciar el servidor:', error);
    process.exit(1);
  }
}

startServer().catch(console.error);