import 'dotenv/config';
import express from 'express';
import cors from 'cors';
import path from 'path';
import { fileURLToPath } from 'url';
import { initDatabase } from './config/database.js';
import { initMailer } from './config/mailer.js';
import authRoutes from './routes/auth.js';
import roomRoutes from './routes/rooms.js';
import recordingRoutes from './routes/recordings.js';
import adminRoutes from './routes/admin.js';
import brandingRoutes from './routes/branding.js';
import federationRoutes, { wellKnownHandler } from './routes/federation.js';

const __filename = fileURLToPath(import.meta.url);
const __dirname = path.dirname(__filename);

const app = express();
const PORT = process.env.PORT || 3001;

// Trust proxy – configurable via TRUST_PROXY env var (default: 1 = one local reverse proxy)
// Use a number to trust that many hops, or a string like 'loopback' / an IP/CIDR.
const rawTrustProxy = process.env.TRUST_PROXY ?? 'loopback';
const trustProxy = /^\d+$/.test(rawTrustProxy) ? parseInt(rawTrustProxy, 10) : rawTrustProxy;
app.set('trust proxy', trustProxy);

// Middleware
app.use(cors());
app.use(express.json());

// Initialize database & start server
async function start() {
  await initDatabase();
  initMailer();

  // Serve uploaded files (avatars, presentations)
  const uploadsPath = path.join(__dirname, '..', 'uploads');
  app.use('/uploads', express.static(uploadsPath));

  // API Routes
  app.use('/api/auth', authRoutes);
  app.use('/api/rooms', roomRoutes);
  app.use('/api/recordings', recordingRoutes);
  app.use('/api/admin', adminRoutes);
  app.use('/api/branding', brandingRoutes);
  app.use('/api/federation', federationRoutes);
  app.get('/.well-known/redlight', wellKnownHandler);

  // Serve static files in production
  if (process.env.NODE_ENV === 'production') {
    app.use(express.static(path.join(__dirname, '..', 'dist')));
    app.get('*', (req, res) => {
      res.sendFile(path.join(__dirname, '..', 'dist', 'index.html'));
    });
  }

  app.listen(PORT, () => {
    console.log(`🔴 Redlight server running on http://localhost:${PORT}`);
  });
}

start().catch(err => {
  console.error('❌ Failed to start server:', err);
  process.exit(1);
});