Update app.py

app.py

@@ -204,4 +204,70 @@ def main():
     
     pages[page]()
 
-def display_current_course():
+def display_current_course():
+    """Display current course content"""
+    path = st.session_state.learning_path
+    display_progress_bar()
+    
+    col1, col2 = st.columns([7, 3])
+    
+    with col1:
+        current_module = path.modules[st.session_state.current_module]
+        display_module_content(current_module)
+    
+    with col2:
+        st.markdown("### 📌 Navigation")
+        
+        # Previous module button
+        if st.session_state.current_module > 0:
+            if st.button("⬅️ Previous Module", key="prev_module"):
+                st.session_state.current_module -= 1
+                st.rerun()
+        
+        # Next module button
+        next_idx = st.session_state.current_module + 1
+        if next_idx < len(path.modules):
+            if path.modules[next_idx].is_complete:
+                if st.button("Next Module ➡️", key="next_module"):
+                    st.session_state.current_module = next_idx
+                    # Save progress to DB
+                    cursor.execute('''INSERT OR REPLACE INTO progress (user, topic, current_module, completion_date) VALUES (?, ?, ?, ?)''',
+                                   ('user1', path.topic, st.session_state.current_module, None))
+                    conn.commit()
+                    st.rerun()
+            else:
+                with st.spinner("Generating next module as we speak..."):
+                    asyncio.run(
+                        platform.generate_next_module(path, next_idx)
+                    )
+                st.rerun()
+        else:
+            st.success("🎉 You have completed all modules!")
+            if path not in st.session_state.completed_courses:
+                path.completion_date = datetime.now().strftime("%Y-%m-%d %H:%M:%S")
+                st.session_state.completed_courses.append(path)
+                # Save completion to DB
+                cursor.execute('''INSERT OR REPLACE INTO progress (user, topic, current_module, completion_date) VALUES (?, ?, ?, ?)''',
+                               ('user1', path.topic, len(path.modules), path.completion_date))
+                conn.commit()
+
+
+def display_completed_courses():
+    """Display completed courses"""
+    st.markdown("### 🏆 Completed Courses")
+    
+    if not st.session_state.completed_courses:
+        st.info("Complete your first course to see it here!")
+        return
+    
+    for course in st.session_state.completed_courses:
+        st.markdown(f"""
+        <div class="module-card">
+            <h4>{course.topic}</h4>
+            <p>{course.description}</p>
+            <p><small>Completed on: {course.created_at}</small></p>
+        </div>
+        """, unsafe_allow_html=True)
+
+if __name__ == "__main__":
+    main()