Update app.py

app.py

@@ -4,8 +4,11 @@ import gradio as gr
 from backend_app.ingest import run_ingestion
 from backend_app.rag_hf import RAGEngineHF
 from backend_app.config import (
-    DATA_DIR, FAISS_INDEX_PATH, DOCSTORE_PATH,
-    BOT_WELCOME, BOT_NAME
+    DATA_DIR,
+    FAISS_INDEX_PATH,
+    DOCSTORE_PATH,
+    BOT_WELCOME,
+    BOT_NAME
 )
 
 # ---------- Prepare data once ----------
@@ -16,25 +19,34 @@ if not (os.path.exists(FAISS_INDEX_PATH) and os.path.exists(DOCSTORE_PATH)):
 
 rag = RAGEngineHF()
 
-def respond(message, history):
+
+def respond(message, history, lang):
     message = (message or "").strip()
     if not message:
         return ""
 
     try:
-        result = rag.answer(message)
+        result = rag.answer(message, preferred_lang=lang)
         answer = (result.get("answer") or "").strip()
         return answer if answer else "I couldn’t find enough information to answer that. Please rephrase."
     except Exception:
         return "I ran into a temporary error while generating the answer. Please try again."
 
+
 with gr.Blocks(title=BOT_NAME) as demo:
     gr.Markdown(f"## {BOT_NAME}")
     gr.Markdown(BOT_WELCOME)
 
-    # ✅ Minimal ChatInterface
+    lang = gr.Dropdown(
+        choices=["English"],
+        value="English",
+        label="Response language"
+    )
+
+    # ✅ Minimal ChatInterface for maximum compatibility
     gr.ChatInterface(
-        fn=respond
+        fn=respond,
+        additional_inputs=[lang]
     )
 
 demo.queue()