Feat/content maintenance tools

LearningPlatform/.gitignore

@@ -52,3 +52,6 @@ public/media
 
 # private local-only import data
 scripts/imports/data-private/**/*.js
+
+# shareable course bundles (export from your machine)
+content-bundles/

LearningPlatform/app/(admin)/admin/actions/media.ts

@@ -5,6 +5,37 @@ import config from '@payload-config'
 import { requireAdmin } from '@/lib/auth-helpers'
 import { revalidatePath } from 'next/cache'
 import { logActivity, ActivityAction } from '@/lib/activity-log'
+import { collectUsedMediaIds } from '@/lib/media-usage'
+
+const MEDIA_PAGE_SIZE = 100
+
+async function listAllMediaIds(): Promise<string[]> {
+  const payload = await getPayload({ config })
+  const ids: string[] = []
+  let page = 1
+
+  while (true) {
+    const result = await payload.find({
+      collection: 'media',
+      limit: MEDIA_PAGE_SIZE,
+      page,
+      depth: 0,
+    })
+    for (const doc of result.docs) {
+      ids.push(String(doc.id))
+    }
+    if (!result.hasNextPage) break
+    page++
+  }
+
+  return ids
+}
+
+export async function countUnusedMedia(): Promise<number> {
+  await requireAdmin()
+  const [allIds, usedIds] = await Promise.all([listAllMediaIds(), collectUsedMediaIds()])
+  return allIds.filter((id) => !usedIds.has(id)).length
+}
 
 export async function deleteMedia(id: string) {
   const admin = await requireAdmin()
@@ -16,12 +47,39 @@ export async function deleteMedia(id: string) {
   })
 
   logActivity({
-    action:       ActivityAction.MEDIA_DELETED,
-    actorUserId:  admin.id,
-    actorEmail:   admin.email,
+    action: ActivityAction.MEDIA_DELETED,
+    actorUserId: admin.id,
+    actorEmail: admin.email,
     resourceType: 'media',
-    resourceId:   String(id),
+    resourceId: String(id),
   })
 
   revalidatePath('/admin/media')
 }
+
+export async function deleteAllUnusedMedia(): Promise<{ deleted: number }> {
+  const admin = await requireAdmin()
+  const payload = await getPayload({ config })
+  const [allIds, usedIds] = await Promise.all([listAllMediaIds(), collectUsedMediaIds()])
+  const unusedIds = allIds.filter((id) => !usedIds.has(id))
+
+  let deleted = 0
+  for (const id of unusedIds) {
+    await payload.delete({ collection: 'media', id })
+    deleted++
+  }
+
+  if (deleted > 0) {
+    logActivity({
+      action: ActivityAction.MEDIA_DELETED,
+      actorUserId: admin.id,
+      actorEmail: admin.email,
+      resourceType: 'media',
+      resourceId: 'bulk-unused',
+      metadata: { count: deleted, mediaIds: unusedIds.slice(0, 50) },
+    })
+  }
+
+  revalidatePath('/admin/media')
+  return { deleted }
+}

LearningPlatform/app/(admin)/admin/dashboard/page.tsx

@@ -3,6 +3,7 @@ import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card'
 import { ReloadButton } from '@/components/ui/reload-button'
 import { CoursesList } from '@/components/admin/courses-list'
 import { AddCourseButton } from '@/components/admin/add-course-button'
+import { ContentBundleImportPanel } from '@/components/admin/content-bundle-import-panel'
 import { BookOpen, Users, GraduationCap } from 'lucide-react'
 import { adminGlassCard } from '@/lib/student-glass-styles'
 import { cn } from '@/lib/utils'
@@ -105,6 +106,8 @@ export default async function AdminDashboardPage() {
         </Card>
       </div>
 
+      <ContentBundleImportPanel />
+
       <Card className={cn('border-0 shadow-none', adminGlassCard)}>
         <CardHeader>
           <CardTitle className="text-2xl font-semibold tracking-tight text-gray-900 dark:text-gray-100">Courses</CardTitle>

LearningPlatform/app/(admin)/admin/flashcards/admin-flashcards-client.tsx

@@ -832,6 +832,16 @@ export function AdminFlashcardsPage() {
         setError(typeof data?.error === 'string' ? data.error : 'Could not delete deck.')
         return
       }
+      const removedDeckIds = new Set<string>([deck.id])
+      if (opts.isMain) {
+        for (const row of deckRows) {
+          if (row.parentDeckId === deck.id) removedDeckIds.add(row.id)
+        }
+      }
+      setFlashcards((prev) => prev.filter((fc) => !removedDeckIds.has(fc.deck.id)))
+      setDeckRows((prev) =>
+        prev.filter((row) => row.id !== deck.id && row.parentDeckId !== deck.id),
+      )
       if (inlineSubdeckMainId === deck.id) setInlineSubdeckMainId(null)
       if (inlineStandaloneSubdeckMainId === deck.id) {
         setInlineStandaloneSubdeckMainId(null)