Update app.py

app.py

@@ -13,9 +13,9 @@ import random
 # Load environment variables
 load_dotenv()
 
-# Initialize Firebase
-cred = credentials.Certificate("path_to_your_firebase_adminsdk_json.json")
-firebase_admin.initialize_app(cred, {"databaseURL": "https://your-project-id.firebaseio.com/"})
+# Initialize Firebase with provided credentials and URL
+cred = credentials.Certificate("redfernstech-fd8fe-firebase-adminsdk-g9vcn-0537b4efd6.json")
+firebase_admin.initialize_app(cred, {"databaseURL": "https://redfernstech-fd8fe-default-rtdb.firebaseio.com/"})
 
 # Configure Llama index settings
 Settings.llm = HuggingFaceInferenceAPI(
@@ -38,7 +38,7 @@ PDF_DIRECTORY = 'data'
 os.makedirs(PDF_DIRECTORY, exist_ok=True)
 os.makedirs(PERSIST_DIR, exist_ok=True)
 
-# Variable to store chat history
+# Dictionary to store chat histories for different sessions
 session_chat_histories = {}
 
 def select_random_name():
@@ -103,9 +103,11 @@ def save_chat_message(session_id, message_data):
     ref.push().set(message_data)
 
 def chat_interface(message, history):
-    session_id = history[0][1] if history else str(uuid.uuid4())
+    # Retrieve or create a new session ID based on history
+    session_id = history[0][1] if history and history[0][1] else str(uuid.uuid4())
+    history.append((message, session_id))  # Append the session ID to history
     response = handle_query(session_id, message)
-    return response, [(message, response)]
+    return response, history
 
 css = '''
   .circle-logo {