server.js

const path = require("path");
const express = require("express");
const config = require("./config");
// const connectDB = require('./config/db');
const configureMiddleware = require("./middleware");
const configureRoutes = require("./routes");
const socketio = require("socket.io");
const gameSocket = require("./socket/index");

// Connect and get reference to mongodb instance
// let db;

// (async function () {
//   db = await connectDB();
// })();

// Init express app
const app = express();

// Config Express-Middleware
configureMiddleware(app);

// Set-up Routes
configureRoutes(app);

// Start server and listen for connections
const server = app.listen(config.PORT, () => {
    console.log(
        `Server is running in ${config.NODE_ENV} mode and is listening on port ${config.PORT}...`
    );
});

//  Handle real-time poker game logic with socket.io
const io = socketio(server);

io.on("connect", (socket) => gameSocket.init(socket, io));

// Error handling - close server
process.on("unhandledRejection", (err) => {
    // db.disconnect();

    console.error(`Error: ${err.message}`);
    server.close(() => {
        process.exit(1);
    });
});