备份与恢复

server/utils/backup/full-restore-preview.test.ts

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+import { describe, expect, it } from 'vitest'
+import { ensureDefaultBackends } from '../storage-backends'
+import { getActiveBackend } from '../storage/resolver'
+import { putImage } from '../storage'
+import { updateImageThumb, updateImageTranscode } from '../image-index'
+import { createBackupJob, getBackupJob } from './jobs'
+import { runFullExportJob } from './full-export'
+import { previewFullRestore } from './full-restore'
+
+describe('previewFullRestore', () => {
+  it('counts media records instead of HLS sidecar files', async () => {
+    ensureDefaultBackends()
+    const key = 'videos/2026/10/preview-count.mp4'
+    const thumbKey = 'videos/2026/10/preview-count.webp'
+    const hlsKey = 'videos/2026/10/preview-count/index.m3u8'
+    const segmentKey = 'videos/2026/10/preview-count/seg000.ts'
+    const hlsOnlyKey = 'videos/2026/10/preview-count-hls-only.mp4'
+    const hlsOnlyThumbKey = 'videos/2026/10/preview-count-hls-only.webp'
+    const hlsOnlyPlaylistKey = 'videos/2026/10/preview-count-hls-only/index.m3u8'
+    const hlsOnlySegmentKey = 'videos/2026/10/preview-count-hls-only/seg000.ts'
+    const meta = {
+      originalName: 'preview-count.mp4',
+      uploadedAt: '2026-10-18T00:00:00.000Z',
+      contentType: 'video/mp4',
+      size: 1,
+      userId: 1,
+      mediaType: 'video' as const
+    }
+
+    await putImage(key, new Uint8Array([1]), meta)
+    const backend = await getActiveBackend()
+    await backend.put(thumbKey, new Uint8Array([2]), meta)
+    await backend.put(
+      hlsKey,
+      new TextEncoder().encode('#EXTM3U\n#EXTINF:6,\nseg000.ts\n'),
+      meta
+    )
+    await backend.put(segmentKey, new Uint8Array([3]), meta)
+    updateImageThumb(key, thumbKey)
+    updateImageTranscode(key, { status: 'done', hlsKey, progress: 100 })
+
+    await putImage(hlsOnlyKey, new Uint8Array([4]), meta)
+    await backend.put(hlsOnlyThumbKey, new Uint8Array([5]), meta)
+    await backend.put(
+      hlsOnlyPlaylistKey,
+      new TextEncoder().encode('#EXTM3U\n#EXTINF:6,\nseg000.ts\n'),
+      meta
+    )
+    await backend.put(hlsOnlySegmentKey, new Uint8Array([6]), meta)
+    updateImageThumb(hlsOnlyKey, hlsOnlyThumbKey)
+    updateImageTranscode(hlsOnlyKey, {
+      status: 'done',
+      hlsKey: hlsOnlyPlaylistKey,
+      progress: 100,
+      sourceDeleted: true
+    })
+
+    const exportJob = createBackupJob({ type: 'full_export', message: 'test' })
+    await runFullExportJob(exportJob.id, 'test')
+    const archivePath = getBackupJob(exportJob.id)!.outputPath!
+
+    for (const fileKey of [
+      key,
+      thumbKey,
+      hlsKey,
+      segmentKey,
+      hlsOnlyThumbKey,
+      hlsOnlyPlaylistKey,
+      hlsOnlySegmentKey
+    ]) {
+      await backend.delete(fileKey)
+    }
+
+    const preview = await previewFullRestore(archivePath)
+    expect(preview.imageCount).toBe(2)
+    expect(preview.newImages).toBe(2)
+    expect(preview.conflictingImages).toBe(0)
+
+    await backend.put(
+      hlsOnlyPlaylistKey,
+      new TextEncoder().encode('#EXTM3U\n#EXTINF:6,\nseg000.ts\n'),
+      meta
+    )
+    const conflictPreview = await previewFullRestore(archivePath)
+    expect(conflictPreview.newImages).toBe(1)
+    expect(conflictPreview.conflictingImages).toBe(1)
+  })
+})