Update app.py

app.py

@@ -290,8 +290,9 @@ summary_language = st.radio(
 )
 
 if st.button("Generate Summary"):
-    summary = st.session_state.rag_system.generate_summary(summary_language)
-    if summary:
+    if hasattr(st.session_state.rag_system, "document_text") and st.session_state.rag_system.document_text:
+        summary = st.session_state.rag_system.generate_summary(st.session_state.rag_system.document_text, summary_language)
+        st.session_state.rag_system.document_summary = summary
         st.text_area("Document Summary", summary, height=200)
     else:
         st.info("Please process documents first to generate summaries.")