Update app.py

app.py

@@ -53,12 +53,17 @@ Respond in a manner that reflects your expertise and wisdom.
 history_df = pd.DataFrame(columns=['Timestamp', 'Request', 'Response'])
 
 def save_history():
-    history_df.to_json('chat_history.json', orient='records')
+    history_json = history_df.to_json(orient='records', date_format='iso')
+    with open('chat_history.json', 'w') as f:
+        json.dump(json.loads(history_json), f)
 
 def load_history():
     global history_df
     if os.path.exists('chat_history.json'):
-        history_df = pd.read_json('chat_history.json', orient='records')
+        with open('chat_history.json', 'r') as f:
+            history_data = json.load(f)
+        history_df = pd.DataFrame(history_data)
+        history_df['Timestamp'] = pd.to_datetime(history_df['Timestamp'])
     else:
         history_df = pd.DataFrame(columns=['Timestamp', 'Request', 'Response'])
     return history_df
@@ -85,7 +90,7 @@ def models(text, model="Mixtral 8x7B", seed=42):
     
     # Add the current interaction to the history DataFrame
     new_row = pd.DataFrame({
-        'Timestamp': [datetime.now().strftime("%Y-%m-%d %H:%M:%S")],  # Convert to string
+        'Timestamp': [datetime.now()],
         'Request': [text],
         'Response': [output]
     })
@@ -169,4 +174,4 @@ with gr.Blocks(css="style.css") as demo:
 if __name__ == "__main__":
     # Load history at startup
     load_history()
-    demo.queue(max_size=200).launch(share=True)
+    demo.queue(max_size=200).launch()