Update app.py

app.py

@@ -252,17 +252,44 @@ with gr.Blocks(title="NRL Chat for Commercial procurement", theme=gr.themes.Soft
             index_status = gr.Markdown("📊 Status: Ready")
             
             # Store uploaded files
+            # Store uploaded files - CORRECTED VERSION
             def store_files(files):
                 file_dict = {}
-                for f in files:
-                    if f:
-                        with tempfile.NamedTemporaryFile(delete=False, suffix=".pdf") as tmp:
-                            tmp.write(f.read())
-                            tmp.close()  # Explicit close
-                            file_dict[f.name] = tmp.name
+                if not files:
+                    return {}
+                
+                for file_obj in files:
+                    if file_obj and hasattr(file_obj, 'name'):
+                        source_path = file_obj.name  # This is the string path
+                        
+                        # Create temp copy with original name
+                        temp_suffix = os.path.splitext(file_obj.name)[1] or '.pdf'
+                        with tempfile.NamedTemporaryFile(delete=False, suffix=temp_suffix) as tmp:
+                            # Read from file path, not file object
+                            with open(source_path, 'rb') as source_file:
+                                shutil.copyfileobj(source_file, tmp)
+                            file_dict[file_obj.name] = tmp.name
+                
                 return file_dict
             
-            pdf_upload.change(store_files, pdf_upload, uploaded_files)
+            # Update the event handler
+            pdf_upload.change(
+                store_files, 
+                inputs=pdf_upload, 
+                outputs=uploaded_files
+            )
+
+            #def store_files(files):
+            #    file_dict = {}
+            #    for f in files:
+            #        if f:
+            #            with tempfile.NamedTemporaryFile(delete=False, suffix=".pdf") as tmp:
+            #                tmp.write(f.read())
+            #                tmp.close()  # Explicit close
+            #                file_dict[f.name] = tmp.name
+            #    return file_dict
+            #
+            #pdf_upload.change(store_files, pdf_upload, uploaded_files)
         
         # RIGHT COLUMN: QA Interface
         with gr.Column(scale=2):