Working

server.js

@@ -1,27 +1,71 @@
-const io = require("socket.io")(3000, {
+const express = require("express")
+const app = express()
+const server = require("http").Server(app)
+const io = require("socket.io")(server, {
     cors: {
         origin: [
             "http://localhost:5500",
             "http://127.0.0.1:5500",
             "http//192.168.1.226:5500",
+            "http//192.168.1.226:5500",
         ],
     },
 })
 
-const users = {}
+app.set("views", "./views")
+app.set("view engine", "ejs")
+app.use(express.static("public"))
+app.use(express.urlencoded({ extended: true }))
+
+const getUserRooms = (socket) =>
+    Object.entries(rooms).reduce((names, [name, room]) => {
+        if (room.users[socket.id] != null) names.push(name)
+        return names
+    }, [])
+
+const rooms = {}
+
+app.get("/", (_, res) => {
+    res.render("index", { rooms: rooms })
+})
+
+app.post("/room", (req, res) => {
+    if (rooms[req.body.room] != null) {
+        return res.redirect("/")
+    }
+    rooms[req.body.room] = { users: {} }
+    res.redirect(req.body.room)
+    io.emit("room-created", req.body.room)
+})
+
+app.get("/:room", (req, res) => {
+    if (rooms[req.params.room] == null) {
+        return res.redirect("/")
+    }
+    res.render("room", { roomName: req.params.room })
+})
+
+server.listen(3000)
 
 io.on("connection", (socket) => {
-    socket.on("new-user", (name) => {
-        users[socket.id] = name
-        socket.broadcast.emit("user-connected", name)
+    socket.on("new-user", (room, name) => {
+        socket.join(room)
+        rooms[room].users[socket.id] = name
+        socket.broadcast.to(room).emit("user-connected", name)
     })
 
-    socket.on("send-chat-message", (message) =>
-        socket.broadcast.emit("chat-message", message, users[socket.id])
+    socket.on("send-chat-message", (room, message) => {
+        socket.broadcast
+            .to(room)
+            .emit("chat-message", message, rooms[room].users[socket.id])
+    })
+
+    socket.on("disconnect", () =>
+        getUserRooms(socket).forEach((room) => {
+            socket.broadcast
+                .to(room)
+                .emit("user-disconnected", rooms[room].users[socket.id])
+            delete rooms[room].users[socket.id]
+        })
     )
-
-    socket.on("disconnect", () => {
-        socket.broadcast.emit("user-disconnected", users[socket.id])
-        delete users[socket.id]
-    })
 })