feat(dashboard): add last updated at course sort option (#823)

Co-authored-by: Cursor Agent <cursoragent@cursor.com>
Co-authored-by: Rotimi Best <rotimi-best@users.noreply.github.com>

apps/dashboard/src/lib/features/course/utils/constants.ts

@@ -19,6 +19,7 @@ export const EXERCISE_TEMPLATE_TAGS = {
 /** Named sort keys for course lists (URL `sort`, localStorage, filter UI). */
 export const CourseSortBy = {
   DateCreated: 'date_created',
+  LastUpdatedAt: 'last_updated_at',
   Published: 'published',
   Lessons: 'lessons'
 } as const;
@@ -68,6 +69,7 @@ export function parseCourseSortOrder(value: string | null | undefined): CourseSo
 
 export const COURSE_SORT_OPTIONS = [
   { value: CourseSortBy.DateCreated, label: 'courses.course_filter.date_created' },
+  { value: CourseSortBy.LastUpdatedAt, label: 'courses.course_filter.last_updated_at' },
   { value: CourseSortBy.Published, label: 'courses.course_filter.published' },
   { value: CourseSortBy.Lessons, label: 'courses.course_filter.lessons' }
 ] as const;

apps/dashboard/src/lib/features/lms/pages/explore.svelte

@@ -39,6 +39,13 @@
       return coursesFiltered.sort(
         (a, b) => new Date(a.createdAt ?? '').getTime() - new Date(b.createdAt ?? '').getTime()
       );
+    } else if (sortKey === CourseSortBy.LastUpdatedAt) {
+      return coursesFiltered.sort((a, b) => {
+        const aUpdatedAt = new Date(a.updatedAt ?? a.createdAt ?? '').getTime();
+        const bUpdatedAt = new Date(b.updatedAt ?? b.createdAt ?? '').getTime();
+
+        return bUpdatedAt - aUpdatedAt;
+      });
     } else if (sortKey === CourseSortBy.Published) {
       return coursesFiltered.sort((a, b) => Number(b.isPublished) - Number(a.isPublished));
     } else if (sortKey === CourseSortBy.Lessons) {

apps/dashboard/src/lib/utils/translations/da.json

@@ -2613,6 +2613,7 @@
       "most_lessons": "Lektioner: Flest først",
       "fewest_lessons": "Lektioner: Færrest først",
       "date_created": "Dato oprettet",
+      "last_updated_at": "Sidst opdateret",
       "published": "Udgivet",
       "lessons": "Lektioner"
     },

apps/dashboard/src/lib/utils/translations/de.json

@@ -2613,6 +2613,7 @@
       "most_lessons": "Lektionen: Meiste zuerst",
       "fewest_lessons": "Lektionen: Wenigste zuerst",
       "date_created": "Erstellungsdatum",
+      "last_updated_at": "Zuletzt aktualisiert",
       "published": "Veröffentlicht",
       "lessons": "Lektionen"
     },

apps/dashboard/src/lib/utils/translations/en.json

@@ -1861,6 +1861,7 @@
       "most_lessons": "Lessons: Most first",
       "fewest_lessons": "Lessons: Fewest first",
       "date_created": "Date Created",
+      "last_updated_at": "Last Updated At",
       "published": "Published",
       "lessons": "Lessons"
     },

apps/dashboard/src/lib/utils/translations/es.json

@@ -2613,6 +2613,7 @@
       "most_lessons": "Lecciones: más primero",
       "fewest_lessons": "Lecciones: menos primero",
       "date_created": "Fecha de creación",
+      "last_updated_at": "Última actualización",
       "published": "Publicado",
       "lessons": "Lecciones"
     },

apps/dashboard/src/lib/utils/translations/fr.json

@@ -2613,6 +2613,7 @@
       "most_lessons": "Leçons : plus d'abord",
       "fewest_lessons": "Leçons : moins d'abord",
       "date_created": "Date de création",
+      "last_updated_at": "Dernière mise à jour",
       "published": "Publié",
       "lessons": "Leçons"
     },

apps/dashboard/src/lib/utils/translations/hi.json

@@ -2613,6 +2613,7 @@
       "most_lessons": "पाठ: सबसे अधिक पहले",
       "fewest_lessons": "पाठ: सबसे कम पहले",
       "date_created": "दिनांक निर्मित",
+      "last_updated_at": "अंतिम अपडेट",
       "published": "प्रकाशित",
       "lessons": "सबक"
     },

apps/dashboard/src/lib/utils/translations/pl.json

@@ -2613,6 +2613,7 @@
       "most_lessons": "Lekcje: od największej liczby",
       "fewest_lessons": "Lekcje: od najmniejszej liczby",
       "date_created": "Data utworzenia",
+      "last_updated_at": "Ostatnia aktualizacja",
       "published": "Opublikowano",
       "lessons": "Lekcje"
     },

apps/dashboard/src/lib/utils/translations/pt.json

@@ -2613,6 +2613,7 @@
       "most_lessons": "Lições: mais primeiro",
       "fewest_lessons": "Lições: menos primeiro",
       "date_created": "Data de criação",
+      "last_updated_at": "Última atualização",
       "published": "Publicado",
       "lessons": "Lições"
     },

apps/dashboard/src/lib/utils/translations/ru.json

@@ -2613,6 +2613,7 @@
       "most_lessons": "Уроки: сначала больше",
       "fewest_lessons": "Уроки: сначала меньше",
       "date_created": "Дата создания",
+      "last_updated_at": "Последнее обновление",
       "published": "Опубликовано",
       "lessons": "Уроки"
     },

apps/dashboard/src/lib/utils/translations/vi.json

@@ -2613,6 +2613,7 @@
       "most_lessons": "Bài học: Nhiều nhất trước",
       "fewest_lessons": "Bài học: Ít nhất trước",
       "date_created": "Ngày tạo",
+      "last_updated_at": "Cập nhật lần cuối",
       "published": "Đã xuất bản",
       "lessons": "Bài học"
     },

apps/dashboard/src/routes/(app)/org/[slug]/courses/+page.svelte

@@ -156,6 +156,13 @@
           ? new Date(a.createdAt ?? '').getTime() - new Date(b.createdAt ?? '').getTime()
           : new Date(b.createdAt ?? '').getTime() - new Date(a.createdAt ?? '').getTime()
       );
+    } else if (sortKey === CourseSortBy.LastUpdatedAt) {
+      return sortedCourses.sort((a, b) => {
+        const aUpdatedAt = new Date(a.updatedAt ?? a.createdAt ?? '').getTime();
+        const bUpdatedAt = new Date(b.updatedAt ?? b.createdAt ?? '').getTime();
+
+        return selectedOrder === CourseSortOrder.Asc ? aUpdatedAt - bUpdatedAt : bUpdatedAt - aUpdatedAt;
+      });
     } else if (sortKey === CourseSortBy.Published) {
       return sortedCourses.sort((a, b) =>
         selectedOrder === CourseSortOrder.Asc