Update app.py

app.py

@@ -118,7 +118,11 @@ def process_directory(directory):
     file_references = []
 
     directory_path = extract_single_zip_file(directory)
-    
+    has_files = any(os.path.isfile(os.path.join(directory_path, file)) for file in os.listdir(directory_path))
+    os.listdir(directory_path))
+    if not has_files:
+        print(f"No files found in the directory: {directory_path}")
+        return all_texts, 
     for root, _, files in os.walk(directory_path):
         for file in files:
             print(f"Any files??: {file}")