Update app.py

app.py

@@ -27,8 +27,6 @@ if not pdf_paths:
     st.warning("📁 Please place some PDF files in the `docs/` folder.")
     st.stop()
 
-#st.info(f"📄 Loaded {len(pdf_paths)} document(s) from `docs/`")
-
 # Load and split all PDFs
 documents = []
 for path in pdf_paths:
@@ -54,10 +52,12 @@ qa_chain = RetrievalQA.from_chain_type(
     return_source_documents=True
 )
 
-# Ask question
-user_question = st.text_input("💬 Ask your question about SME documents:")
+# User input
+user_question = st.text_input("💬 Ask your question about SME documents:", key="user_question")
 
-if user_question:
+# Button to trigger response
+if st.button("Ask") or user_question and st.session_state.get("user_question_submitted", False) is False:
+    st.session_state["user_question_submitted"] = True
     with st.spinner("🤔 Thinking..."):
         result = qa_chain({"query": user_question})
         st.success("✅ Answer:")
@@ -66,3 +66,8 @@ if user_question:
         with st.expander("📄 Source Snippets"):
             for i, doc in enumerate(result["source_documents"]):
                 st.markdown(f"**Source {i+1}:**\n{doc.page_content[:300]}...")
+
+# Reset the submit flag if input changes
+if user_question != st.session_state.get("last_input", ""):
+    st.session_state["user_question_submitted"] = False
+    st.session_state["last_input"] = user_question