Update index.js

index.js

@@ -1 +1,46 @@
-console.log("Index.js started");
+const express = require("express");
+const http = require("http");
+const { Server } = require("socket.io");
+
+const app = express();
+const server = http.createServer(app);
+const io = new Server(server);
+
+app.use(express.static("public"));
+
+let rooms = {};
+
+io.on("connection", (socket) => {
+  console.log("User connected:", socket.id);
+
+  socket.on("join-room", ({ roomId, name }) => {
+    socket.join(roomId);
+
+    if (!rooms[roomId]) rooms[roomId] = {};
+    rooms[roomId][socket.id] = name;
+
+    socket.to(roomId).emit("user-joined", { id: socket.id, name });
+
+    socket.emit("all-users", rooms[roomId]);
+  });
+
+  socket.on("signal", ({ to, data }) => {
+    io.to(to).emit("signal", {
+      from: socket.id,
+      data,
+    });
+  });
+
+  socket.on("disconnect", () => {
+    for (const roomId in rooms) {
+      if (rooms[roomId][socket.id]) {
+        socket.to(roomId).emit("user-left", socket.id);
+        delete rooms[roomId][socket.id];
+      }
+    }
+  });
+});
+
+server.listen(3000, () => {
+  console.log("Server running on http://localhost:3000");
+});