server.js

const express = require('express');
const cors = require('cors');
require('dotenv').config();

const app = express();
const PORT = process.env.PORT || 3000;

// Middleware
app.use(cors());
app.use(express.json());
app.use(express.urlencoded({ extended: true }));

// Routes
const authRoutes = require('./routes/auth');
const bookRoutes = require('./routes/books');
const planRoutes = require('./routes/plans');
const progressRoutes = require('./routes/progress');
const exportRoutes = require('./routes/exports');

app.use('/api/auth', authRoutes);
app.use('/api/books', bookRoutes);
app.use('/api/plans', planRoutes);
app.use('/api/progress', progressRoutes);
app.use('/api/exports', exportRoutes);

// Health check
app.get('/health', (req, res) => {
  res.json({ status: 'OK', timestamp: new Date().toISOString() });
});

// Error handling middleware
app.use((err, req, res, next) => {
  console.error(err.stack);
  res.status(500).json({ error: 'Something went wrong!' });
});

// 404 handler
app.use('*', (req, res) => {
  res.status(404).json({ error: 'Route not found' });
});

app.listen(PORT, () => {
  console.log(`Server running on port ${PORT}`);
});

module.exports = app;