Update app.py

app.py

@@ -200,10 +200,10 @@ def create_audio_recorder():
 
 class AdvancedRAG:
     def __init__(self):
-        self.vector_store_id: Optional[str] = None
-        self.file_ids: List[str] = []
         self.thread_id: Optional[str] = None
         self.assistant_id: Optional[str] = os.getenv("ASSISTANT_ID")
+        if not self.assistant_id:
+            raise ValueError("ASSISTANT_ID environment variable is not set")
 
     def create_thread(self) -> str:
         thread = openai.beta.threads.create()
@@ -221,11 +221,10 @@ class AdvancedRAG:
                         file=file_obj,
                         purpose="assistants"
                     )
-                    self.file_ids.append(file_obj.id)
 
-            # Create a new thread with the file
-            thread = openai.beta.threads.create()
-            self.thread_id = thread.id
+            # Create a new thread if one doesn't exist
+            if not self.thread_id:
+                self.create_thread()
 
             # Add the file to the thread
             openai.beta.threads.messages.create(
@@ -241,6 +240,9 @@ class AdvancedRAG:
 
     def ask_question(self, question: str) -> str:
         try:
+            if not self.thread_id:
+                self.create_thread()
+
             # Add the question to the thread
             openai.beta.threads.messages.create(
                 thread_id=self.thread_id,