update peer count per topic

app.js

@@ -15,7 +15,7 @@ await drive.ready();
 
 let swarm;
 let registeredUsers = JSON.parse(localStorage.getItem('registeredUsers')) || {};
-let peerCount = 0;
+let peerCounts = {}; // Change peerCount to an object
 let activeRooms = [];
 const eventEmitter = new EventEmitter();
 
@@ -144,9 +144,13 @@ async function initialize() {
   });
 
   swarm.on('connection', async (connection, info) => {
-    peerCount++;
-    updatePeerCount();
-    console.log('Peer connected, current peer count:', peerCount);
+    const topic = info.topics[0].toString('hex');
+    if (!peerCounts[topic]) {
+      peerCounts[topic] = 0;
+    }
+    peerCounts[topic]++;
+    updatePeerCount(topic);
+    console.log('Peer connected, current peer count for topic', topic, ':', peerCounts[topic]);
 
     // Send the current user's icon to the new peer
     const iconBuffer = await drive.get(`/icons/${config.userName}.png`);
@@ -165,9 +169,9 @@ async function initialize() {
     });
 
     connection.on('close', () => {
-      peerCount--;
-      updatePeerCount();
-      console.log('Peer disconnected, current peer count:', peerCount);
+      peerCounts[topic]--;
+      updatePeerCount(topic);
+      console.log('Peer disconnected, current peer count for topic', topic, ':', peerCounts[topic]);
     });
   });
 
@@ -321,6 +325,7 @@ function exitEditMode(roomItem, input, topic) {
 function switchRoom(topic) {
   console.log('Switching to room:', topic); // Debugging log
   document.querySelector('#chat-room-topic').innerText = topic; // Set full topic here
+  updatePeerCount(topic);
   clearMessages();
   renderMessagesForRoom(topic);
 
@@ -490,10 +495,10 @@ function addFileMessage(from, fileName, fileUrl, fileType, avatar, topic) {
   }
 }
 
-function updatePeerCount() {
+function updatePeerCount(topic) {
   const peerCountElement = document.querySelector('#peers-count');
   if (peerCountElement) {
-    peerCountElement.textContent = peerCount; // Display the actual peer count
+    peerCountElement.textContent = peerCounts[topic] || 0; // Display the peer count for the specific topic
   }
 }