✨(stats) count aliases in stats endpoint

stats endpoint now return the count of aliases

src/backend/core/api/client/viewsets.py

@@ -621,6 +621,7 @@ class StatView(views.APIView):
                 status=enums.MailDomainStatusChoices.ENABLED
             ).count(),
             "mailboxes": domains_models.Mailbox.objects.count(),
+            "aliases": domains_models.Alias.objects.count(),
         }
         return response.Response(context)
 

src/backend/core/tests/test_api_stats.py

@@ -11,7 +11,6 @@ from rest_framework.test import APIClient
 from core import factories as core_factories
 
 from mailbox_manager import factories as domains_factories
-from mailbox_manager import models as domains_models
 
 pytestmark = pytest.mark.django_db
 
@@ -21,18 +20,20 @@ def test_api_stats__anonymous(django_assert_num_queries):
 
     domains_factories.MailDomainEnabledFactory.create_batch(5)
     core_factories.TeamFactory.create_batch(3)
+    domains_factories.AliasFactory.create_batch(2)
 
     # clear cache to allow stats count
     cache.clear()
-    with django_assert_num_queries(5):
+    with django_assert_num_queries(6):
         response = APIClient().get("/api/v1.0/stats/")
     assert response.status_code == status.HTTP_200_OK
     assert response.json() == {
         "total_users": 0,
         "mau": 0,
-        "active_domains": 5,
+        "active_domains": 7,
         "mailboxes": 0,
         "teams": 3,
+        "aliases": 2,
     }
     # no new request made due to caching
     with django_assert_num_queries(0):
@@ -41,9 +42,10 @@ def test_api_stats__anonymous(django_assert_num_queries):
     assert response.json() == {
         "total_users": 0,
         "mau": 0,
-        "active_domains": 5,
+        "active_domains": 7,
         "mailboxes": 0,
         "teams": 3,
+        "aliases": 2,
     }
 
 
@@ -58,10 +60,9 @@ def test_api_stats__expected_count():
 
     core_factories.TeamFactory.create_batch(3)
     domains_factories.MailDomainFactory.create_batch(1)
-    domains_factories.MailDomainEnabledFactory.create_batch(2)
-    domains_factories.MailboxFactory.create_batch(
-        10, domain=domains_models.MailDomain.objects.all()[1]
-    )
+    enabled_domain, _ = domains_factories.MailDomainEnabledFactory.create_batch(2)
+    domains_factories.MailboxFactory.create_batch(10, domain=enabled_domain)
+    domains_factories.AliasFactory.create_batch(2, domain=enabled_domain)
 
     # clear cache to allow stats count
     cache.clear()
@@ -73,4 +74,5 @@ def test_api_stats__expected_count():
         "active_domains": 2,
         "mailboxes": 10,
         "teams": 3,
+        "aliases": 2,
     }