Update app.py

app.py

@@ -2,11 +2,10 @@ import os
 from openai import OpenAI
 from shiny import App, render, ui, reactive
 
-# Ultra-safe, stripped layout to guarantee a clean launch
+# Clean, error-free layout framework
 app_ui = ui.page_fluid(
     ui.h2("NexusAI Assistant"),
     ui.hr(),
-    # Fixed Input Layouts (No custom keywords that break compiler engines)
     ui.input_text_area("user_prompt", "Enter your prompt below:", "What is the meaning of life?"),
     ui.input_action_button("submit_btn", "Send Query"),
     ui.hr(),
@@ -16,7 +15,7 @@ app_ui = ui.page_fluid(
 
 def server(input, output, session):
     
-    # Asynchronous task handling OpenRouter latency to stop infinite hangs
+    # Asynchronous background thread to manage the network waiting time
     @reactive.extended_task
     async def fetch_ai_response(prompt_text):
         try:
@@ -34,18 +33,20 @@ def server(input, output, session):
                 messages=[{"role": "user", "content": prompt_text}]
             )
             
-            # Target the content string directly inside the payload list
-            return {"status": "success", "content": completion.choices[0].message.content}
+            # CORE FIX: Added [0] to extract the text from the first choice object array index
+            ai_text = completion.choices[0].message.content
+            return {"status": "success", "content": ai_text}
+            
         except Exception as e:
             return {"status": "error", "content": str(e)}
 
-    # Trigger async routine when user clicks submit button
+    # Listen for button triggers
     @reactive.effect
     @reactive.event(input.submit_btn)
     def _():
         fetch_ai_response.trigger(input.user_prompt())
 
-    # Dynamically update the app interface state
+    # Safely swap display states without causing the web browser to hang
     @render.ui
     def ai_display_area():
         if fetch_ai_response.status() == "initial":
@@ -61,4 +62,4 @@ def server(input, output, session):
             else:
                 return ui.p(f"Connection Error: {res['content']}")
 
-app = App(app_ui, server)
+app = App(app_ui, server)