update

backend/routes/tracking_routes.py

@@ -79,8 +79,8 @@ def track_click(tracking_id):
     """
     Track link clicks and redirect to original article URL.
     
-    Logs the click event and redirects the user to the original article URL.
-    Handles invalid tracking_id by redirecting to homepage.
+    Logs the click event, updates user interest profile, and redirects the user
+    to the original article URL. Handles invalid tracking_id by redirecting to homepage.
     Ensures redirect completes within 200ms.
     
     Args:
@@ -115,6 +115,19 @@ def track_click(tracking_id):
                     }
                 }
             )
+            
+            # Update user interest profile (Phase 3)
+            subscriber_email = tracking_record.get('subscriber_email')
+            keywords = tracking_record.get('keywords', [])
+            category = tracking_record.get('category', 'general')
+            
+            if subscriber_email and subscriber_email != 'anonymized':
+                try:
+                    from services.interest_profiling_service import update_user_interests
+                    update_user_interests(subscriber_email, keywords, category)
+                except Exception as e:
+                    # Don't fail the redirect if interest update fails
+                    print(f"Error updating user interests: {str(e)}")
     except Exception as e:
         # Log error but still redirect
         print(f"Error tracking click for {tracking_id}: {str(e)}")