Update app.py

app.py

@@ -318,15 +318,19 @@ processed_markdown = ""
 show_results_tab = False
 
 
+def start_processing():
+    """Immediately update status when processing starts"""
+    return "🔄 Processing PDF... Please wait", gr.Tabs(visible=False)
+
 def process_uploaded_pdf(pdf_file, progress=gr.Progress()):
     """Main processing function for uploaded PDF"""
     global processed_markdown, show_results_tab
     
     if dolphin_model is None:
-        return "Model not loaded", gr.Tabs(visible=False)
+        return "❌ Model not loaded", gr.Tabs(visible=False)
     
     if pdf_file is None:
-        return "No PDF uploaded", gr.Tabs(visible=False)
+        return "❌ No PDF uploaded", gr.Tabs(visible=False)
     
     try:
         combined_markdown, status = process_pdf_document(pdf_file, dolphin_model, progress)
@@ -334,14 +338,14 @@ def process_uploaded_pdf(pdf_file, progress=gr.Progress()):
         if status == "processing_complete":
             processed_markdown = combined_markdown
             show_results_tab = True
-            return "PDF processed successfully! Check the 'Document' tab above.", gr.Tabs(visible=True)
+            return "✅ PDF processed successfully! Check the 'Document' tab above.", gr.Tabs(visible=True)
         else:
             show_results_tab = False
             return combined_markdown, gr.Tabs(visible=False)
             
     except Exception as e:
         show_results_tab = False
-        error_msg = f"Error processing PDF: {str(e)}"
+        error_msg = f"❌ Error processing PDF: {str(e)}"
         return error_msg, gr.Tabs(visible=False)
 
 
@@ -479,6 +483,9 @@ with gr.Blocks(
     
     # Event handlers
     process_btn.click(
+        fn=start_processing,
+        outputs=[status_output, results_tab]
+    ).then(
         fn=process_uploaded_pdf,
         inputs=[pdf_input],
         outputs=[status_output, results_tab],