Update rag_agent.py

rag_agent.py

@@ -21,6 +21,13 @@ load_dotenv()
 BNI_CSV_FILE = "bni_pearl_chapter.csv"
 BNI_JSON_FILE = "bni_pearl_chapter.json"
 
+# Define the path to the structured BNI dataset (JSON file)
+BNI_DATA_PATH = "bni_pearl_chapter.json"
+
+# Ensure the JSON file exists
+if not os.path.exists(BNI_DATA_PATH):
+    raise FileNotFoundError(f"❌ Error: The BNI data file {BNI_DATA_PATH} is missing.")
+
 # 1️⃣ **Convert CSV to JSON for structured retrieval**
 def convert_csv_to_json():
     df = pd.read_csv(BNI_CSV_FILE)
@@ -35,6 +42,7 @@ def convert_csv_to_json():
 if not os.path.exists(BNI_JSON_FILE):
     convert_csv_to_json()
 
+
 # 2️⃣ **Create a Vector Database for RAG**
 vector_db = LanceDb(
     table_name="bni_pearl",