Update app.py

app.py

@@ -267,6 +267,11 @@ if 'authenticated' not in st.session_state:
 if not st.session_state.authenticated:
     st.markdown('<h1 class="main-header">🔐 Login to Course Personalization</h1>', unsafe_allow_html=True)
     
+    # Check if credentials are configured
+    if not VALID_USERNAME or not VALID_PASSWORD:
+        st.error("❌ Authentication credentials not configured. Please contact administrator.")
+        st.stop()
+    
     col1, col2, col3 = st.columns([1, 2, 1])
     with col2:
         with st.container():
@@ -281,7 +286,7 @@ if not st.session_state.authenticated:
                 login_submitted = st.form_submit_button("🚀 Login", use_container_width=True)
                 
                 if login_submitted:
-                    if username == VALID_USERNAME and password == VALID_PASSWORD:
+                    if VALID_USERNAME and VALID_PASSWORD and username == VALID_USERNAME and password == VALID_PASSWORD:
                         st.session_state.authenticated = True
                         st.success("Login successful! Redirecting...")
                         time.sleep(1)
@@ -292,9 +297,9 @@ if not st.session_state.authenticated:
             st.markdown('</div>', unsafe_allow_html=True)
     
     st.markdown("---")
-    st.markdown(f"""
+    st.markdown("""
     <div style="text-align: center; color: #888888;">
-    <small>Demo Credentials: {VALID_USERNAME} / {VALID_PASSWORD if len(VALID_PASSWORD) <= 10 else VALID_PASSWORD[:3] + '...'}</small>
+    <small>Please contact administrator for access credentials</small>
     </div>
     """, unsafe_allow_html=True)
     st.stop()
@@ -397,8 +402,8 @@ with st.form("personalization_form", clear_on_submit=False):
     with col3:
         tts_voice = st.selectbox(
             "Voice Style", 
-            ["onyx", "echo", "soprano", "alto", "robotic"],
-            index=0,
+            ["alloy", "echo", "fable", "onyx", "nova", "shimmer"],
+            index=3,  # Default to "onyx"
             format_func=lambda x: x.capitalize(),
             help="Select the voice style for text-to-speech"
         )
@@ -430,14 +435,14 @@ if topic_mode == "Multiple Topics":
     st.markdown('<div class="action-buttons">', unsafe_allow_html=True)
     col1, col2, col3, col4 = st.columns([2, 2, 2, 4])
     with col1:
-        if st.button(" Add Topic", key="add_topic", help="Add a new topic"):
+        if st.button("➕ Add Topic", key="add_topic", help="Add a new topic"):
             st.session_state.topics_list.append({
                 "topic_title": f"Topic {len(st.session_state.topics_list) + 1}", 
                 "chapter_title": f"Chapter {len(st.session_state.topics_list) + 1}"
             })
             st.rerun()
     with col2:
-        if st.button(" Reset All", key="reset_topics", help="Reset to default topics"):
+        if st.button("🔄 Reset All", key="reset_topics", help="Reset to default topics"):
             st.session_state.topics_list = [{"topic_title": "What is Flask", "chapter_title": "Introduction to Flask"}]
             st.rerun()
     st.markdown('</div>', unsafe_allow_html=True)
@@ -542,13 +547,13 @@ if submitted:
                     response_data = response.json()
                     session_ids = response_data.get("session_ids", [])
                     
-                    st.success(" Base Course started successfully!")
+                    st.success("🎉 Base Course started successfully!")
                     
                     # Store session IDs in session state
                     st.session_state.session_ids.extend(session_ids)
                     
                     # Display results in a clean format
-                    st.markdown("###  Generation Summary")
+                    st.markdown("### 📊 Generation Summary")
                     
                     col1, col2 = st.columns(2)
                     with col1:
@@ -564,22 +569,27 @@ if submitted:
                         **Hinglish**: {"Enabled" if toggle_hinglish else "Disabled"}
                         """)
                     
+                    # Display session IDs
+                    if session_ids:
+                        st.markdown("### 🔍 Session Tracking IDs")
+                        for i, session_id in enumerate(session_ids, 1):
+                            st.markdown(f'<div class="session-info">📝 <strong>Session {i}:</strong> <code>{session_id}</code></div>', unsafe_allow_html=True)
                     
                     
                     
                 else:
-                    st.error(f" API Error: {response.status_code}")
+                    st.error(f"❌ API Error: {response.status_code}")
                     if response.text:
                         st.error(f"**Error Details**: {response.text}")
                         
             except requests.exceptions.Timeout:
-                st.error(" Request timed out. Please try again later.")
+                st.error("⏰ Request timed out. Please try again later.")
             except requests.exceptions.ConnectionError:
                 st.error("🌐 Connection error. Please check your internet connection.")
             except Exception as e:
-                st.error(f" API call failed: {str(e)}")
+                st.error(f"❌ API call failed: {str(e)}")
                 
                 # Show payload for debugging
                 with st.expander("🐛 Debug Information", expanded=False):
                     st.warning("Request payload for debugging:")
-                    st.json(payload)
+                    st.json(payload)