Fix iCal imported schedules related users and next shifts per user (#3178)

Fixes https://github.com/grafana/oncall-private/issues/2212

CHANGELOG.md

@@ -15,6 +15,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - Discard old pending network requests in the UI (Users/Schedules) [#3172](https://github.com/grafana/oncall/pull/3172)
 - Fix resolution note source for mobile app by @vadimkerr ([#3174](https://github.com/grafana/oncall/pull/3174))
+- Fix iCal imported schedules related users and next shifts per user ([#3178](https://github.com/grafana/oncall/pull/3178))
 - Fix references to removed access control functions in Grafana @mderynck ([#3184](https://github.com/grafana/oncall/pull/3184))
 
 ## v1.3.45 (2023-10-19)

engine/apps/api/tests/test_schedules.py

@@ -1,4 +1,5 @@
 import json
+import textwrap
 from unittest.mock import patch
 
 import pytest
@@ -1487,6 +1488,57 @@ def test_next_shifts_per_user(
     assert returned_data == expected
 
 
+@pytest.mark.django_db
+def test_next_shifts_per_user_ical_schedule_using_emails(
+    make_organization_and_user_with_plugin_token, make_user_for_organization, make_user_auth_headers, make_schedule
+):
+    organization, admin, token = make_organization_and_user_with_plugin_token()
+    client = APIClient()
+
+    user = make_user_for_organization(organization, username="testing", email="testing@testing.com")
+    # ical file using emails as reference
+    cached_ical_primary_schedule = textwrap.dedent(
+        """
+        BEGIN:VCALENDAR
+        VERSION:2.0
+        PRODID:testing
+        CALSCALE:GREGORIAN
+        BEGIN:VEVENT
+        CREATED:20220316T121102Z
+        LAST-MODIFIED:20230127T151619Z
+        DTSTAMP:20230127T151619Z
+        UID:something
+        SUMMARY:testing@testing.com
+        RRULE:FREQ=WEEKLY
+        DTSTART;TZID=Europe/Madrid:20220309T130000
+        DTEND;TZID=Europe/Madrid:20220309T133000
+        END:VEVENT
+        BEGIN:VEVENT
+        CREATED:20220316T121102Z
+        LAST-MODIFIED:20230127T151619Z
+        DTSTAMP:20230127T151619Z
+        UID:something-else
+        SUMMARY:testing_unknown@testing.com
+        RRULE:FREQ=WEEKLY
+        DTSTART;TZID=Europe/Madrid:20220309T150000
+        DTEND;TZID=Europe/Madrid:20220309T153000
+        END:VEVENT
+        END:VCALENDAR
+    """
+    )
+    schedule = make_schedule(
+        organization,
+        schedule_class=OnCallScheduleICal,
+        cached_ical_file_primary=cached_ical_primary_schedule,
+    )
+
+    url = reverse("api-internal:schedule-next-shifts-per-user", kwargs={"pk": schedule.public_primary_key})
+    response = client.get(url, format="json", **make_user_auth_headers(admin, token))
+    assert response.status_code == status.HTTP_200_OK
+
+    assert set(response.data["users"].keys()) == {user.public_primary_key}
+
+
 @pytest.mark.django_db
 def test_related_users(
     make_organization_and_user_with_plugin_token,

engine/apps/api/views/schedule.py

@@ -380,7 +380,7 @@ class ScheduleView(
         added_users = set()
         for e in events:
             user = e["users"][0]["pk"] if e["users"] else None
-            if user is not None and user not in added_users and e["end"] > now:
+            if user is not None and user not in added_users and user in users and e["end"] > now:
                 users[user].update(e)
                 added_users.add(user)
 

engine/apps/schedules/models/on_call_schedule.py

@@ -1092,6 +1092,16 @@ class OnCallScheduleICal(OnCallSchedule):
             )
         self.save(update_fields=["cached_ical_file_overrides", "prev_ical_file_overrides", "ical_file_error_overrides"])
 
+    def related_users(self):
+        """Return users referenced in the schedule."""
+        # combine users based on usernames and users via email (allowed in iCal based schedules)
+        usernames = []
+        if self.cached_ical_file_primary:
+            usernames += RE_ICAL_FETCH_USERNAME.findall(self.cached_ical_file_primary)
+        if self.cached_ical_file_overrides:
+            usernames += RE_ICAL_FETCH_USERNAME.findall(self.cached_ical_file_overrides)
+        return self.organization.users.filter(Q(username__in=usernames) | Q(email__in=usernames))
+
     # Insight logs
     @property
     def insight_logs_serialized(self):

engine/apps/schedules/tests/test_on_call_schedule.py

@@ -1304,6 +1304,40 @@ def test_schedule_related_users_usernames(
     assert set(schedule.related_users()) == set(users)
 
 
+@pytest.mark.django_db
+def test_schedule_related_users_emails(make_organization, make_user_for_organization, make_schedule):
+    organization = make_organization()
+    user = make_user_for_organization(organization, username="testing", email="testing@testing.com")
+    # ical file using email as reference
+    cached_ical_primary_schedule = textwrap.dedent(
+        """
+        BEGIN:VCALENDAR
+        VERSION:2.0
+        PRODID:testing
+        CALSCALE:GREGORIAN
+        BEGIN:VEVENT
+        CREATED:20220316T121102Z
+        LAST-MODIFIED:20230127T151619Z
+        DTSTAMP:20230127T151619Z
+        UID:something
+        SUMMARY:testing@testing.com
+        RRULE:FREQ=WEEKLY;UNTIL=20221231T010101
+        DTSTART;TZID=Europe/Madrid:20220309T130000
+        DTEND;TZID=Europe/Madrid:20220309T133000
+        SEQUENCE:4
+        END:VEVENT
+        END:VCALENDAR
+    """
+    )
+    schedule = make_schedule(
+        organization,
+        schedule_class=OnCallScheduleICal,
+        cached_ical_file_primary=cached_ical_primary_schedule,
+    )
+
+    assert set(schedule.related_users()) == {user}
+
+
 @pytest.mark.django_db(transaction=True)
 def test_filter_events_none_cache_unchanged(
     make_organization, make_user_for_organization, make_schedule, make_on_call_shift