only suggest local users as potential group members

bookwyrm/suggested_users.py

@@ -103,6 +103,28 @@ class SuggestedUsers(RedisStore):
                 break
         return results
 
+    def get_group_suggestions(self, user):
+        """get suggestions for new group members"""
+        values = self.get_store(self.store_id(user), withscores=True)
+        results = []
+        # annotate users with mutuals and shared book counts
+        for user_id, rank in values:
+            counts = self.get_counts_from_rank(rank)
+            try:
+                user = models.User.objects.get(
+                    id=user_id, is_active=True, bookwyrm_user=True
+                )
+            except models.User.DoesNotExist as err:
+                # if this happens, the suggestions are janked way up
+                logger.exception(err)
+                continue
+            user.mutuals = counts["mutuals"]
+            # only suggest local users until Groups are ActivityPub compliant
+            if user.local:
+                results.append(user)
+            if len(results) >= 5:
+                break
+        return results
 
 def get_annotated_users(viewer, *args, **kwargs):
     """Users, annotated with things they have in common"""