Update app.py

app.py

@@ -23,12 +23,10 @@ AVAILABLE_MODELS = [
 
 
 # Default System Prompt
-DEFAULT_SYSTEM_PROMPT = """
+DEFAULT_SYSTEM_PROMPT = """Answer everything in simple, smart, relevant and accurate style. No chatty! Besides, pls:
     1. 如果查詢是以中文輸入，使用標準繁體中文回答，符合官方文書規範 
     2. 要提供引用規則依据
-    3. 如果查詢是以英文輸入，使用英文回答
-    Answer everything in simple, smart, relevant and accurate style, within 20 words. No chatty!
-    """
+    3. 如果查詢是以英文輸入，使用英文回答"""
 
 # --- Gradio Interface ---
 with gr.Blocks(theme=gr.themes.Default(primary_hue="blue", secondary_hue="neutral")) as demo:
@@ -109,6 +107,20 @@ with gr.Blocks(theme=gr.themes.Default(primary_hue="blue", secondary_hue="neutra
         queue=False
     )
 
+    # Function to update textbox when prompt style changes
+    def update_prompt_text(selected_key, use_custom):
+        if not use_custom:
+            return gr.update(value=SYSTEM_PROMPT_OPTIONS[selected_key])
+        else:
+            return gr.update()
+
+    system_prompt_selector.change(
+        fn=update_prompt_text,
+        inputs=[system_prompt_selector, use_custom_prompt_checkbox],
+        outputs=system_prompt_textbox,
+        queue=False
+    )
+
     # --- Core Chat Logic ---
     # This function is the heart of the application.
     def respond(history, system_prompt, stream_output, current_selected_model, selected_prompt_key, use_custom_prompt): # Added selected_prompt_key and use_custom_prompt
@@ -169,4 +181,4 @@ with gr.Blocks(theme=gr.themes.Default(primary_hue="blue", secondary_hue="neutra
     )
 
 # Launch the Gradio interface
-demo.launch(server_name="0.0.0.0", server_port=7860)
+demo.launch(server_name="0.0.0.0", server_port=7860)