server.js

const express = require("express");
const cors = require("cors");
const { intrument, instrument } = require("@socket.io/admin-ui");
const app = express();

const io = require("socket.io")(8080, {
    cors: {
        origin: ["http://localhost:3000", "https://admin.socket.io/"],
        methods: ["GET", "POST"],
        allowHeaders: ["my-custom-header"],
        addTrailingSlash: false,
    },
});

const PORT = 5000;

app.use(cors());

io.on("connection", (socket) => {
    socket.on("send-message", (msg, room) => {
        socket.broadcast.emit("r-m", msg);
    });
    socket.on("join-room", (roomID, callback) => {
        try {
            socket.join(roomID);
            console.log(`Socket ${socket.id} joined room ${roomID}`);
            callback({ success: true });
        } catch (error) {
            console.error("Not working");
            callback({ success: false });
        }
    });

    socket.on("update-url", (roomID, url) => {
        console.log(`RoomID: ${roomID}.\nurl: ${url}`);
        socket.to(roomID).emit("update-url", roomID, url);
    });

    socket.on("play-video", (roomID) => {
        socket.to(roomID).emit("play-video");
    });
    socket.on("pause-video", (roomID) => {
        socket.to(roomID).emit("pause-video");
    });

    socket.on("update-progress", (roomID, progress) => {
        socket.to(roomID).emit("update-progress");
    });

    // socket.on("create-room", (roomID, callback) => {
    //  if (io.sockets.adapter.rooms.has(roomID)) {
    //      console.log("Room already exists!");
    //      callback({ success: false });
    //  } else {
    //      console.log(`Created a room with ID: ${roomID}`, socket.id);
    //      socket.join(roomID);
    //      callback({ success: true });
    //  }
    // });
});

instrument(io, { auth: false });

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