index.js

const express = require('express');
const mongoose = require('mongoose');
const cors = require('cors');
const app = express();
const PORT = 3000;

mongoose.connect('mongodb://localhost:27017/express-backend', {
  serverSelectionTimeoutMS: 5000,
}).then(() => console.log('MongoDB connected'))
  .catch(err => console.error('MongoDB connection error:', err));

app.use(cors());
app.use(express.json());
app.use(express.static('public'));

const authRoutes = require('./routes/auth');
const postRoutes = require('./routes/posts');

app.use('/auth', authRoutes);
app.use('/posts', postRoutes);

app.get('/', (req, res) => {
  res.send('Сервер работает');
});

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

const io = require('socket.io')(server);

io.on('connection', (socket) => {
  console.log('Пользователь подключился:', socket.id);

  socket.on('chat message', (data) => {
    io.emit('chat message', data);
  });

  socket.on('disconnect', () => {
    console.log('Пользователь отключился:', socket.id);
  });
});