fix: enable adding video from library to another lesson

apps/dashboard/src/lib/features/course/components/lesson/lesson-settings-tab.svelte

@@ -12,7 +12,7 @@
   import { classroomio } from '$lib/utils/services/api';
   import { t } from '$lib/utils/functions/translations';
   import { getBrowserTimezone, instantToZonedWallClock, zonedWallClockToInstant } from '$lib/utils/functions/date';
-  import { getVideoTitle, isHlsUploadVideo, type LessonVideo } from './video/video-card-utils';
+  import { getVideoTitle, type LessonVideo } from './video/video-card-utils';
 
   type LessonCompletionPolicy = 'manual' | 'video_watch' | 'none';
 
@@ -328,9 +328,6 @@
                     />
                     <Field.Label for={`watch-enforced-${video.assetId}`} class="font-normal">
                       {getVideoTitle(video, index)}
-                      {#if isHlsUploadVideo(video)}
-                        <span class="ui:text-muted-foreground ml-1 text-xs">(HLS)</span>
-                      {/if}
                     </Field.Label>
                   </Field.Field>
                 {/each}

apps/dashboard/src/lib/features/course/components/lesson/video/library-video.svelte

@@ -1,10 +1,15 @@
 <script lang="ts">
   import { Button } from '@cio/ui/base/button';
+  import { Spinner } from '@cio/ui/base/spinner';
+  import { Empty } from '@cio/ui/custom/empty';
   import { InputField } from '@cio/ui/custom/input-field';
   import { lessonApi } from '$features/course/api';
   import { mediaApi } from '$features/media/api';
   import type { OrganizationAsset } from '$features/media/utils';
   import { onMount } from 'svelte';
+  import { flip } from 'svelte/animate';
+  import { fly } from 'svelte/transition';
+  import { snackbar } from '$features/ui/snackbar/store';
   import { t } from '$lib/utils/functions/translations';
 
   interface Props {
@@ -15,10 +20,10 @@
 
   let search = $state('');
   let isLoading = $state(false);
-
-  const assets = $derived(
-    mediaApi.assets.filter((asset) => asset.kind === 'video' && (asset.status ?? 'active') !== 'archived')
-  );
+  let addingAssetId = $state<string | null>(null);
+  // Local copy so adding a video swipes it out of this list without mutating the
+  // shared mediaApi.assets store (which also backs the media manager page).
+  let assets = $state<OrganizationAsset[]>([]);
 
   async function loadLibrary() {
     isLoading = true;
@@ -27,24 +32,32 @@
       limit: 100,
       search: search.trim() || undefined
     });
+    assets = mediaApi.assets.filter((asset) => asset.kind === 'video' && (asset.status ?? 'active') !== 'archived');
     isLoading = false;
   }
 
   async function addFromLibrary(asset: OrganizationAsset) {
     if (!lessonApi.lesson) return;
 
-    const position = Array.isArray(lessonApi.lesson.videos) ? lessonApi.lesson.videos.length : 0;
-    const lessonVideo = await mediaApi.buildLessonVideoFromAsset(asset, {
-      lessonId: lessonId || undefined,
-      position,
-      slotType: 'lesson_video'
-    });
+    addingAssetId = asset.id;
+    try {
+      const position = Array.isArray(lessonApi.lesson.videos) ? lessonApi.lesson.videos.length : 0;
+      const lessonVideo = await mediaApi.buildLessonVideoFromAsset(asset, {
+        lessonId: lessonId || undefined,
+        position,
+        slotType: 'lesson_video'
+      });
 
-    if (!lessonVideo) {
-      return;
+      if (!lessonVideo) {
+        return;
+      }
+
+      lessonApi.updateLessonState('videos', [lessonVideo], { append: true });
+      assets = assets.filter((item) => item.id !== asset.id);
+      snackbar.success('snackbar.media_manager.added_to_lesson');
+    } finally {
+      addingAssetId = null;
     }
-
-    lessonApi.updateLessonState('videos', [lessonVideo], { append: true });
   }
 
   onMount(async () => {
@@ -66,22 +79,33 @@
   </div>
 
   {#if isLoading}
-    <p class="ui:text-muted-foreground text-sm">
-      {$t('course.navItem.lessons.materials.tabs.video.add_video.loading_library')}
-    </p>
+    <Empty
+      description={$t('course.navItem.lessons.materials.tabs.video.add_video.loading_library')}
+      icon={Spinner}
+      class="ui:max-h-40 py-6"
+    />
   {:else if assets.length === 0}
     <p class="ui:text-muted-foreground text-sm">
       {$t('course.navItem.lessons.materials.tabs.video.add_video.no_library_videos')}
     </p>
   {:else}
-    <div class="max-h-[360px] space-y-2 overflow-auto pr-1">
+    <div class="max-h-[360px] space-y-2 overflow-x-hidden">
       {#each assets as asset (asset.id)}
-        <div class="flex items-center justify-between rounded-md border p-3">
-          <div class="min-w-0">
-            <p class="truncate text-sm font-medium">{asset.title || asset.storageKey || asset.id}</p>
+        <div
+          class="flex items-center justify-between rounded-md border p-3"
+          animate:flip={{ duration: 250 }}
+          out:fly={{ x: -400, duration: 300 }}
+        >
+          <div class="max-w-md">
+            <p class="truncate text-sm font-medium wrap-break-word">{asset.title || asset.storageKey || asset.id}</p>
             <p class="ui:text-muted-foreground text-xs">{asset.provider}</p>
           </div>
-          <Button size="sm" onclick={() => addFromLibrary(asset)}>
+          <Button
+            size="sm"
+            onclick={() => addFromLibrary(asset)}
+            loading={addingAssetId === asset.id}
+            disabled={addingAssetId !== null}
+          >
             {$t('course.navItem.lessons.materials.tabs.video.add_video.add_from_library')}
           </Button>
         </div>