Update app.py

app.py

@@ -500,18 +500,26 @@ def handle_file_upload(file):
         return "ℹ️ No file uploaded.", ""
     
     try:
-        filename = Path(file.name).name
-        num_chunks, file_type = kb.build_from_uploaded_file(file.name, filename)
+        # Gradio File with type="filepath" -> file is a string
+        if isinstance(file, str):
+            file_path = file
+            filename = Path(file).name
+        else:
+            # Fallback for other types (e.g. temp file object)
+            file_path = getattr(file, "name", None)
+            if not file_path:
+                raise ValueError("Unsupported file object from Gradio.")
+            filename = Path(file_path).name
+
+        num_chunks, file_type = kb.build_from_uploaded_file(file_path, filename)
         
-        return (
-            f"✅ **File processed successfully!**\n\n"
-            f"📄 **File:** {filename}\n"
-            f"📋 **Type:** {file_type}\n"
-            f"🔢 **Chunks:** {num_chunks}\n\n"
-            f"You can now ask questions about this document!"
-        ), filename
+        kb.uploaded_file_active = True
+        info = f"✅ Indexed {num_chunks} chunks from {file_type} file: **{filename}**"
+        return info, filename
+
     except Exception as e:
-        return f"❌ **Error processing file:** {str(e)}\n\nPlease ensure the file is a valid PDF, DOCX, TXT, or MD file.", ""
+        return f"❌ Error processing file: {str(e)}", ""
+
 
 def clear_uploaded_file():
     """Clear uploaded file and reload KB index."""