Update app.py

app.py

@@ -263,14 +263,25 @@ with st.sidebar:
     st.markdown("4. Create podcasts.")
 
 # Streamlit UI
-st.title("Document Analyzer and Podcast Generator")
+# Sidebar
+with st.sidebar:
+    st.title("About")
+    st.markdown(
+        """
+        This app is inspired by the [RAG_HW HuggingFace Space](https://huggingface.co/spaces/wint543/RAG_HW).  
+        It allows users to:
+        1. Upload and process documents
+        2. Generate summaries
+        3. Ask questions
+        4. Create podcasts
+        """
+    )
 
-# Fetch the API key status
-if "OPENAI_API_KEY" not in os.environ or not os.getenv("OPENAI_API_KEY"):
-    st.error("The 'OPENAI_API_KEY' environment variable is not set. Please configure it in your hosting environment.")
+# Main App
+st.title("Document Analyzer and Podcast Generator")
 
-# File upload
-st.subheader("Step 1: Upload Documents")
+# Step 1: Upload and Process Documents
+st.subheader("Step 1: Upload and Process Documents")
 uploaded_files = st.file_uploader("Upload files (PDF, TXT, CSV)", accept_multiple_files=True)
 
 if st.button("Process Documents"):
@@ -284,8 +295,15 @@ if st.button("Process Documents"):
     else:
         st.warning("No files uploaded.")
 
-# Document Q&A
-st.subheader("Step 2: Ask Questions")
+# Step 2: Generate Summaries
+st.subheader("Step 2: Generate Summaries")
+if st.session_state.rag_system.document_summary:
+    st.text_area("Document Summary", st.session_state.rag_system.document_summary, height=200)
+else:
+    st.info("Please process documents first to generate summaries.")
+
+# Step 3: Ask Questions
+st.subheader("Step 3: Ask Questions")
 if st.session_state.rag_system.qa_chain:
     history = []
     user_question = st.text_input("Ask a question:")
@@ -296,10 +314,10 @@ if st.session_state.rag_system.qa_chain:
             st.chat_message("user").write(question)
             st.chat_message("assistant").write(answer)
 else:
-    st.info("Please process documents before asking questions.")
+    st.info("Please process documents first to enable Q&A.")
 
-# Podcast Generation
-st.subheader("Step 3: Generate Podcast")
+# Step 4: Generate Podcast
+st.subheader("Step 4: Generate Podcast")
 if st.session_state.rag_system.document_summary:
     if st.button("Generate Podcast"):
         script, audio_path = st.session_state.rag_system.create_podcast()
@@ -310,4 +328,4 @@ if st.session_state.rag_system.document_summary:
         else:
             st.error(script)
 else:
-    st.info("Please process documents to generate a podcast.")
+    st.info("Please process documents and generate summaries before creating a podcast.")