Update app.py

app.py

@@ -285,23 +285,28 @@ def main():
         help="Upload your book or document to start chatting with it"
     )
     
+    processing_placeholder = st.sidebar.empty()
+    
     if uploaded_file:
-        with st.sidebar.spinner("Processing document..."):
-            # Process the uploaded file
-            chunks = process_uploaded_file(uploaded_file)
+        processing_placeholder.info("Processing document... Please wait.")
+        # Process the uploaded file
+        chunks = process_uploaded_file(uploaded_file)
+        
+        if chunks:
+            # Create/update the database
+            st.session_state.chunks = chunks
+            st.session_state.db = create_chroma_db(chunks)
+            processing_placeholder.success(f"✅ Document processed! Created {len(chunks)} chunks.")
             
-            if chunks:
-                # Create/update the database
-                st.session_state.chunks = chunks
-                st.session_state.db = create_chroma_db(chunks)
-                st.sidebar.success(f"✅ Document processed! Created {len(chunks)} chunks.")
-                
-                # Add system message to chat history
-                if not st.session_state.messages:
-                    st.session_state.messages.append({
-                        "role": "system",
-                        "content": "I've processed your document. You can now ask questions about it!"
-                    })
+            # Add system message to chat history
+            if not st.session_state.messages:
+                st.session_state.messages.append({
+                    "role": "system",
+                    "content": "I've processed your document. You can now ask questions about it!"
+                })
+        else:
+            processing_placeholder.error("Failed to process document.")
+    
     st.sidebar.markdown("</div>", unsafe_allow_html=True)
     
     # Clear chat button