index.js

// Import required modules
const express = require('express');
const mongoose = require('mongoose');
const bodyParser = require('body-parser');
const cors = require('cors');
const swaggerUi = require('swagger-ui-express');
const swaggerSpec = require('./swagger');
require('dotenv').config();


const productRoutes = require("./routes/productRoute");
const diseaseRoutes = require("./routes/diseaseRoute");
const communityRoutes = require("./routes/communityRoute");

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

app.use(bodyParser.json());
app.use(cors());

mongoose.connect(process.env.MONGODB_URI, {
  useNewUrlParser: true,
  useUnifiedTopology: true,
});

const db = mongoose.connection;

db.on('error', (err) => {
  console.error('MongoDB connection error:', err);
});

db.once('open', () => {
  console.log('Connected to MongoDB');
});

app.get('/', async (req, res) => {
  try {
    res.status(200).send('Hello World!');
  } catch (error) {
    console.error(error);
    res.status(500).json({ error: 'Internal server error' });
  }
});

app.use('/api', productRoutes);
app.use('/api', diseaseRoutes);
app.use('/api', communityRoutes);

app.use('/api-docs', swaggerUi.serve, swaggerUi.setup(swaggerSpec));

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