Update app.py

app.py

@@ -197,30 +197,7 @@ with tab1:
                     except Exception as e:
                         st.error(f"Error: {str(e)}")
 
-    # Course Content Display
-    if st.session_state.learning_path:
-        learning_path = st.session_state.learning_path
-        
-        # Module Navigation Bar
-        st.markdown('<div class="module-navigator">', unsafe_allow_html=True)
-        col1, col2 = st.columns([3, 1])
-        with col1:
-            module_titles = [f"Module {i+1}: {module.title}" for i, module in enumerate(learning_path.modules)]
-            selected_module = st.selectbox(
-                "Navigate to Module",
-                module_titles,
-                index=st.session_state.current_module
-            )
-            st.session_state.current_module = module_titles.index(selected_module)
-        
-        with col2:
-            if len(learning_path.modules) > 0:
-                progress = (st.session_state.current_module / len(learning_path.modules)) * 100
-                st.progress(progress/100)
-                st.write(f"Progress: {progress:.0f}%")
-        st.markdown('</div>', unsafe_allow_html=True)
-
-        if not st.session_state.quiz_mode:
+   if not st.session_state.quiz_mode:
             # Module Content Display
             current_module = learning_path.modules[st.session_state.current_module]
             
@@ -230,17 +207,25 @@ with tab1:
             st.markdown(current_module.content)
 
             # Quiz Button
-            if current_module.quiz_questions:
-                if st.button("📝 Take Module Quiz", key=f"start_quiz_{st.session_state.current_module}"):
-                    st.session_state.quiz_mode = True
-                    st.session_state.current_question = 0
-                    st.session_state.quiz_score = 0
-                    st.rerun()
+            if hasattr(current_module, 'quiz_questions') and current_module.quiz_questions:
+                quiz_col1, quiz_col2, quiz_col3 = st.columns([1,2,1])
+                with quiz_col2:
+                    if st.button("📝 Start Module Quiz", type="primary"):
+                        st.session_state.quiz_mode = True
+                        st.session_state.current_question = 0
+                        st.session_state.quiz_score = 0
+                        st.rerun()
             st.markdown('</div>', unsafe_allow_html=True)
 
         else:
             # Quiz Mode
             current_module = learning_path.modules[st.session_state.current_module]
+            
+            if not hasattr(current_module, 'quiz_questions') or not current_module.quiz_questions:
+                st.warning("No quiz available for this module.")
+                st.session_state.quiz_mode = False
+                st.rerun()
+            
             questions = current_module.quiz_questions
             
             st.markdown('<div class="quiz-card">', unsafe_allow_html=True)
@@ -258,35 +243,41 @@ with tab1:
                 st.markdown(f"**{question['question']}**")
                 
                 # Display options
-                answer = st.radio("Select your answer:", 
-                                question['options'],
-                                key=f"quiz_{st.session_state.current_module}_{st.session_state.current_question}")
-                
-                col1, col2 = st.columns([1, 3])
-                with col1:
-                    if st.button("Submit Answer"):
-                        if answer == question['correct_answer']:
+                if 'options' in question and question['options']:
+                    answer = st.radio(
+                        "Select your answer:", 
+                        question['options'],
+                        key=f"quiz_{st.session_state.current_module}_{st.session_state.current_question}"
+                    )
+                    
+                    if st.button("Submit Answer", type="primary"):
+                        if answer == question.get('correct_answer'):
                             st.success("✅ Correct!")
                             st.session_state.quiz_score += 1
                         else:
                             st.error("❌ Incorrect")
-                            st.markdown(f"The correct answer is: **{question['correct_answer']}**")
+                            st.markdown(f"The correct answer is: **{question.get('correct_answer')}**")
                         
-                        st.markdown(f"**Explanation:** {question['explanation']}")
-                        st.session_state.current_question += 1
-                        st.rerun()
+                        if 'explanation' in question:
+                            st.info(f"**Explanation:** {question['explanation']}")
+                        
+                        # Add continue button after showing result
+                        if st.button("Continue to Next Question ➡️"):
+                            st.session_state.current_question += 1
+                            st.rerun()
                 
-                with col2:
-                    st.write(f"Current Score: {st.session_state.quiz_score}/{total_questions}")
+                # Show current score
+                st.markdown(f"**Current Score:** {st.session_state.quiz_score}/{total_questions}")
             
             else:
                 # Quiz Complete
                 score_percentage = (st.session_state.quiz_score / len(questions)) * 100
                 st.markdown(f"### 🎉 Quiz Complete!")
-                st.markdown(f"Final Score: **{score_percentage:.1f}%**")
+                st.markdown(f"### Final Score: {score_percentage:.1f}%")
                 
                 # Award badge based on score
                 if score_percentage >= 90:
+                    st.balloons()
                     st.markdown("### 🏆 Expert Achievement Unlocked!")
                 elif score_percentage >= 75:
                     st.markdown("### 🌟 Advanced Learner Badge!")
@@ -295,23 +286,20 @@ with tab1:
                 
                 col1, col2 = st.columns(2)
                 with col1:
-                    if st.button("Review Module"):
+                    if st.button("📚 Review Module", type="secondary"):
                         st.session_state.quiz_mode = False
                         mark_module_complete(st.session_state.current_module)
                         st.rerun()
                 with col2:
                     if st.session_state.current_module < len(learning_path.modules) - 1:
-                        if st.button("Next Module"):
+                        if st.button("Next Module ➡️", type="primary"):
                             st.session_state.current_module += 1
                             st.session_state.quiz_mode = False
                             mark_module_complete(st.session_state.current_module - 1)
                             st.rerun()
             
             st.markdown('</div>', unsafe_allow_html=True)
-
-with tab2:
-    st.markdown("### 📚 My Learning Journey")
-    
+            
     # In Progress Courses
     st.markdown("#### 🚀 In Progress")
     if st.session_state.courses['in_progress']: