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/* server.js */
    
    const cors = require('cors');
    const next = require('next');
    const Pusher = require('pusher');
    const express = require('express');
    const bodyParser = require('body-parser');
    const dotenv = require('dotenv').config();
    const Sentiment = require('sentiment');
    
    const dev = process.env.NODE_ENV !== 'production';
    const port = process.env.PORT || 3000;
    
    const app = next({ dev });
    const handler = app.getRequestHandler();
    const sentiment = new Sentiment();
    
    // Ensure that your pusher credentials are properly set in the .env file
    // Using the specified variables
    const pusher = new Pusher({
      appId: process.env.PUSHER_APP_ID,
      key: process.env.PUSHER_APP_KEY,
      secret: process.env.PUSHER_APP_SECRET,
      cluster: process.env.PUSHER_APP_CLUSTER,
      encrypted: true
    });
    
    app.prepare()
      .then(() => {
      
        const server = express();
        
        server.use(cors());
        server.use(bodyParser.json());
        server.use(bodyParser.urlencoded({ extended: true }));
        
        server.get('*', (req, res) => {
          return handler(req, res);
        });
        
        server.listen(port, err => {
          if (err) throw err;
          console.log(`> Ready on http://localhost:${port}`);
        });
        
      })
      .catch(ex => {
        console.error(ex.stack);
        process.exit(1);
      });