Implementation/59967 remove reminder notifications from aggregation and have them as standalone

frontend/src/app/features/in-app-notifications/center/state/ian-center.service.ts

@@ -111,7 +111,28 @@ export class IanCenterService extends UntilDestroyedMixin {
   notifications$ = this
     .aggregatedCenterNotifications$
     .pipe(
-      map((items) => Object.values(items)),
+      map((items) => {
+        return Object.values(items).reduce((acc, workPackageNotificationGroup) => {
+          const { reminders, others } = workPackageNotificationGroup.reduce((result, notification) => {
+            if (notification.reason === 'reminder') {
+              result.reminders.push(notification);
+            } else {
+              result.others.push(notification);
+            }
+            return result;
+          }, { reminders: [] as INotification[], others: [] as INotification[] });
+
+          // Extract reminders into standalone groups so they can be displayed individually
+          if (reminders.length > 0) {
+            reminders.forEach((reminder) => acc.push([reminder]));
+          }
+          if (others.length > 0) {
+            acc.push(others);
+          }
+
+          return acc;
+        }, [] as INotification[][]);
+      }),
       distinctUntilChanged(),
     );
 

spec/features/notifications/notification_center/notification_center_reminder_spec.rb

@@ -4,6 +4,7 @@
 RSpec.describe "Notification center reminder, mention and date alert",
                :js,
                :with_cuprite,
+               with_ee: %i[date_alerts],
                with_settings: { journal_aggregation_time_minutes: 0 } do
   shared_let(:project) { create(:project) }
   shared_let(:actor) { create(:user, firstname: "Actor", lastname: "User") }
@@ -46,13 +47,18 @@
     wait_for_reload
   end
 
-  context "with reminders", with_ee: %i[date_alerts] do
-    it "shows only the reminder alert time and note" do
-      center.within_item(notification_reminder) do
-        expect(page).to have_text("Date alert, Mentioned, Reminder")
-        expect(page).to have_no_text("Actor user")
-        expect(page).to have_text("a few seconds ago.\nNote: “This is an important reminder”")
-      end
+  it "shows the reminder alert in own entry" do
+    center.within_item(notification_reminder) do
+      expect(page).to have_text("##{work_package.id}\n- #{project.name} -\nReminder")
+      expect(page).to have_no_text("Actor user")
+      expect(page).to have_text("a few seconds ago.\nNote: “This is an important reminder”")
+    end
+  end
+
+  it "shows other notification reasons aggregated" do
+    center.within_item(notification_date_alert) do
+      expect(page).to have_text("##{work_package.id}\n- #{project.name} -\nDate alert, Mentioned")
+      expect(page).to have_no_text("Actor user")
     end
   end
 end