store all rooms

excalidraw-app/data/roomManager.ts

@@ -142,10 +142,7 @@ class RoomManager {
 
     filteredRooms.unshift(newRoom);
 
-    // Limit to the most recent 20 rooms
+    await this.saveRooms(filteredRooms);
-    const limitedRooms = filteredRooms.slice(0, 20);
-
-    await this.saveRooms(limitedRooms);
   }
 
   async getRooms(): Promise<CollabRoom[]> {
@@ -179,6 +176,16 @@ class RoomManager {
     }
   }
 
+  async getCurrentRoom(): Promise<CollabRoom | null> {
+    const rooms = await this.loadRooms();
+    if (rooms.length === 0) {
+      return null;
+    }
+
+    // Return the most recently accessed room
+    return rooms.sort((a, b) => b.lastAccessed - a.lastAccessed)[0];
+  }
+
   async clearAllRooms(): Promise<void> {
     try {
       localStorage.removeItem(ROOM_STORAGE_KEY);