Update app.py

app.py

@@ -100,6 +100,9 @@ def update_vectors(files, parser):
         logging.info(f"Processing file: {file.name}")
         try:
             data = load_document(file, parser)
+            if not data:
+                logging.warning(f"No chunks loaded from {file.name}")
+                continue
             logging.info(f"Loaded {len(data)} chunks from {file.name}")
             all_data.extend(data)
             total_chunks += len(data)
@@ -113,6 +116,10 @@ def update_vectors(files, parser):
     
     logging.info(f"Total chunks processed: {total_chunks}")
     
+    if not all_data:
+        logging.warning("No valid data extracted from uploaded files")
+        return "No valid data could be extracted from the uploaded files. Please check the file contents and try again.", display_documents()
+    
     try:
         if os.path.exists("faiss_database"):
             logging.info("Updating existing FAISS database")