Update app.py

app.py

@@ -37,6 +37,13 @@ def bot(history):
         yield history
 
 
+def end_session():
+    global_vars['OPENAI_API_KEY'] = None
+    sp = None
+    device_id = None
+    return f"Session Ended. Thank you for testing Apollo!\n\nPlease re-authenticate your credentials to it again."
+
+
 with gr.Blocks() as chat:
     gr.Markdown(description)
     
@@ -53,7 +60,10 @@ with gr.Blocks() as chat:
         bot, chatbot, chatbot
     )
     txt_msg.then(lambda: gr.update(interactive=True), None, [txt], queue=False)
-
+    
+    logout_button = gr.Button("End Your Session")
+    logout_result = gr.Markdown()
+    logout_button.click(fn=end_session, outputs=logout_result)
 
 demo = gr.TabbedInterface([auth, chat], ["Authentication Station", "Music Room"], 
                           theme="finlaymacklon/boxy_violet", 
@@ -61,6 +71,6 @@ demo = gr.TabbedInterface([auth, chat], ["Authentication Station", "Music Room"]
 )
 
 
-demo.queue()
+demo.queue(max_size=1)
 demo.launch()
 os.remove(".cache")