server.js

const express = require('express');
const cors = require('cors');
const mongoose = require('mongoose');
const bodyParser = require('body-parser');
require('dotenv').config();

const app = express();

// Middleware
app.use(cors({
  origin: '*',
  methods: ['GET', 'POST', 'PUT', 'DELETE'],
  allowedHeaders: ['Content-Type', 'Authorization']
}));

app.use(bodyParser.json({ limit: '50mb' }));
app.use(bodyParser.urlencoded({ limit: '50mb', extended: true }));
app.use(express.json());

// MongoDB Connection
mongoose.connect(process.env.MONGODB_URI, {
  useNewUrlParser: true,
  useUnifiedTopology: true,
})
.then(() => console.log('✅ MongoDB Connected Successfully'))
.catch(err => {
  console.log('❌ MongoDB Connection Error:', err.message);
  process.exit(1);
});

// Routes Import
const authRoutes = require('./routes/auth');
const transactionRoutes = require('./routes/transactions');
const menuRoutes = require('./routes/menu');
const paymentRoutes = require('./routes/payment');

// Routes
app.get('/api/health', (req, res) => {
  res.json({ 
    status: 'Server is running', 
    timestamp: new Date(),
    mongodb: mongoose.connection.readyState === 1 ? 'Connected' : 'Disconnected'
  });
});

// API Routes
app.use('/api/auth', authRoutes);
app.use('/api/transactions', transactionRoutes);
app.use('/api/menu', menuRoutes);
app.use('/api/payment', paymentRoutes);

// Error handling middleware
app.use((err, req, res, next) => {
  console.error('Error:', err);
  res.status(500).json({ 
    success: false, 
    message: err.message || 'Internal Server Error' 
  });
});

// Start Server
const PORT = process.env.PORT || 5000;
app.listen(PORT, () => {
  console.log(`🚀 Server running on http://localhost:${PORT}`);
  console.log(`📡 Environment: ${process.env.NODE_ENV}`);
});