index.js

import 'dotenv/config';
import express from 'express';
import cors from 'cors';
import path from 'path';
import { fileURLToPath } from 'url';

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

// Import routes
import { router as authRoutes } from './src/routes/auth.js';
import { router as roadmapRoutes } from './src/routes/roadmaps.js';
import { router as topicRoutes } from './src/routes/topics.js';
import { router as lessonRoutes } from './src/routes/lessons.js';
import { router as progressRoutes } from './src/routes/progress.js';
import { router as noteRoutes } from './src/routes/notes.js';
import { router as commentRoutes } from './src/routes/commentsNew.js';
import { router as searchRoutes } from './src/routes/search.js';
import { router as submissionRoutes } from './src/routes/submissions.js';
import { errorHandler } from './src/middlewares/index.js';

const app = express();

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

// Serve uploaded files as static assets
app.use('/uploads', express.static(path.join(__dirname, 'uploads')));


// API Routes
app.use('/api/auth', authRoutes);
app.use('/api/roadmaps', roadmapRoutes);
app.use('/api/topics', topicRoutes);
app.use('/api/lessons', lessonRoutes);
app.use('/api/progress', progressRoutes);
app.use('/api/notes', noteRoutes);
app.use('/api/comments', commentRoutes);
app.use('/api/search', searchRoutes);
app.use('/api/submissions', submissionRoutes);

// Health check
app.get('/api/health', (_, res) => res.json({ ok: true, timestamp: new Date().toISOString() }));

// 404 handler
app.use((req, res) => {
  res.status(404).json({
    error: 'Not Found',
    message: `Route ${req.method} ${req.path} not found`
  });
});

// Centralized error handler
app.use(errorHandler);

const PORT = process.env.PORT || 4000;

app.listen(PORT, () => {
  console.log(`🚀 API Server running on http://localhost:${PORT}`);
  console.log(`📚 Endpoints:`);
  console.log(`   - GET  /api/health`);
  console.log(`   - POST /api/auth/register`);
  console.log(`   - POST /api/auth/login`);
  console.log(`   - GET  /api/roadmaps`);
  console.log(`   - GET  /api/search?q=query`);
});