implemented auth

app.py

@@ -14,6 +14,7 @@ sys.path.append(str(src_path))
 from src.config.theme import ROSE_PINE_THEME, PAGE_CONFIG, APP_TITLE, APP_SUBTITLE
 from src.config.mappings import create_feature_mappings
 from src.utils.model_utils import load_model_and_info
+from src.utils.auth import require_auth, check_role_permission, render_admin_panel, check_session_timeout
 from src.components.form_components import (
     render_preset_selector,
     render_personal_info_section,
@@ -77,10 +78,11 @@ def collect_user_input():
     
     return user_input
 
+@require_auth
 def main():
     """Main Streamlit application"""
-    # Configure page
-    st.set_page_config(**PAGE_CONFIG)
+    # Check session timeout (30 minutes)
+    check_session_timeout(30)
     
     # Apply theme
     apply_theme()
@@ -88,9 +90,14 @@ def main():
     # Load model and preprocessing info
     model, preprocessing_info, feature_names = load_model_and_info()
     
-    # Render header
+    # Render header with user context
     render_header()
     
+    # Add admin panel if user is admin
+    if check_role_permission("admin"):
+        with st.sidebar:
+            render_admin_panel()
+    
     # Collect user input
     user_input = collect_user_input()
     
@@ -100,6 +107,10 @@ def main():
     with col1:
         st.markdown('<h2 class="sub-header">Prediction Results</h2>', unsafe_allow_html=True)
         
+        # Add role-based access message
+        if check_role_permission("educator"):
+            st.markdown('<div class="info-box">🎓 <strong>Educator Access:</strong> You have full access to prediction features and student data analysis.</div>', unsafe_allow_html=True)
+        
         # Render prediction section
         render_prediction_section(model, preprocessing_info, user_input)
     
@@ -107,11 +118,16 @@ def main():
         # Render model info and validation
         render_model_info_sidebar(user_input)
         
-        # Render export section
-        render_export_section(user_input)
+        # Render export section (role-based access)
+        if check_role_permission("educator"):
+            render_export_section(user_input)
+        else:
+            st.markdown('<div class="warning-box">📊 <strong>Export Feature:</strong> Available for educators and administrators only.</div>', unsafe_allow_html=True)
     
     # Render footer
     render_footer()
 
 if __name__ == "__main__":
+    # Configure page before authentication
+    st.set_page_config(**PAGE_CONFIG)
     main()