Update app.py

app.py

@@ -55,12 +55,12 @@ class Chatbot:
         self.history_file = dataset_dir / f"chat_log_{uuid4()}.json"
         #self.history_file = f"chat_log_{uuid.uuid4()}.json"
 
-        scheduler = CommitScheduler(
-            repo_id="history_data",
-            repo_type="dataset",
-            folder_path=dataset_dir,
-            path_in_repo="data",
-        )
+        #scheduler = CommitScheduler(
+         #   repo_id="index",
+         #   repo_type="dataset",
+         #   folder_path=dataset_dir,
+         #   path_in_repo="data",
+        #)
         
     def generate_response(self, user_input):
         query_engine = index.as_query_engine(llm=llm_predictor)
@@ -71,6 +71,7 @@ class Chatbot:
         
         return message
     
+    # do not need this function if use append mode when dump data in file
     def load_chat_history(self):
         try:
             with open(self.history_file, 'r') as f:
@@ -102,7 +103,7 @@ class Chatbot:
 
     def save_chat_history(self):
         with scheduler.lock:
-            with open(self.history_file, 'w') as f:
+            with self.history_file.open("a") as f:
                 json.dump(self.chat_history, f)
                 f.write("\n")