use events not activities

recommendation_engine.py

@@ -50,12 +50,8 @@ class Engine:
         playlists = playlists[channels['keywords']:]
         # Count tags for the user
         count = defaultdict(lambda: 0)
-        for activity in user.get('activities', []):
-            if activity.get('type') == 'SCREENING_CHECK_IN':
-                product = activity.get('extras', {}).get('event', {}).get('alias')
-                if product:
-                    product = product.replace('_', ' ')
-                    count[product] += 1
+        for event in user.get('events', []):
+            count[event['data']['product']] += 1
         # For each tag in playlist, increment score by count
         for playlist in playlists:
             score[playlist['name']] = random.random()