Update app.py

app.py

@@ -146,6 +146,12 @@ def process_files(csv_file, openai_key, user_aspek=default_user_aspek, pdf_file=
     except Exception as e:
         return f"Error occurred: {str(e)}\nType: {type(e)}"
 
+def load_demo_files(checked):
+    if checked:
+        return gr.update(value="./demo.csv"), gr.update(value="./demo.pdf")
+    else:
+        return gr.update(value=None), gr.update(value=None)
+        
 # Create Gradio interface
 def create_interface():
     with gr.Blocks(title="Quiz Evaluator", theme=gr.themes.Soft()) as app:
@@ -168,6 +174,17 @@ def create_interface():
                         label="Reference Material (PDF)",
                         file_types=[".pdf"]
                     )
+                    
+            demo_checkbox = gr.Checkbox(
+                label="Use Demo Files",
+                value=False
+            )
+
+            demo_checkbox.change(
+                fn=load_demo_files,
+                inputs=[demo_checkbox],
+                outputs=[csv_input, pdf_input]
+            )
 
             user_aspek = gr.Textbox(
                 label="Aspek",