ライブラリを番組一覧・番組ページ・再生の3段にする（ステップ12）

internal/web/store_test.go

@@ -231,6 +231,71 @@ func (f *fakeJobStore) ListSucceededJobs(_ context.Context, limit int) ([]store.
 	return result, nil
 }
 
+func (f *fakeJobStore) ListLibrarySeries(_ context.Context) ([]store.LibrarySeries, error) {
+	if f.err != nil {
+		return nil, f.err
+	}
+	bySeries := make(map[string]*store.LibrarySeries)
+	latestIDs := make(map[string]int64)
+	for _, job := range f.jobs {
+		if job.Status != "succeeded" {
+			continue
+		}
+		item := bySeries[job.SeriesID]
+		if item == nil {
+			item = &store.LibrarySeries{SeriesID: job.SeriesID}
+			bySeries[job.SeriesID] = item
+		}
+		item.EpisodeCount++
+		if job.FileSizeBytes != nil {
+			item.TotalSizeBytes += *job.FileSizeBytes
+		}
+		current := store.Job{ID: latestIDs[job.SeriesID], FinishedAt: item.LatestFinishedAt}
+		if item.SeriesTitle == "" || jobFinishedLater(job, current) {
+			item.SeriesTitle = job.SeriesTitle
+			item.LatestTitle = job.Title
+			item.BroadcasterName = job.BroadcasterName
+			item.ThumbnailPath = job.ThumbnailPath
+			if job.FinishedAt != nil {
+				finished := *job.FinishedAt
+				item.LatestFinishedAt = &finished
+			}
+			latestIDs[job.SeriesID] = job.ID
+		}
+		_, item.Subscribed = f.subscriptions[job.SeriesID]
+	}
+	result := make([]store.LibrarySeries, 0, len(bySeries))
+	for _, item := range bySeries {
+		result = append(result, *item)
+	}
+	sort.Slice(result, func(i, j int) bool {
+		left, right := result[i].LatestFinishedAt, result[j].LatestFinishedAt
+		if left == nil || right == nil {
+			if left != right {
+				return left != nil
+			}
+		} else if !left.Equal(*right) {
+			return left.After(*right)
+		}
+		return result[i].SeriesID < result[j].SeriesID
+	})
+	return result, nil
+}
+
+func (f *fakeJobStore) ListSucceededJobsBySeries(_ context.Context, seriesID string) ([]store.Job, error) {
+	if f.err != nil {
+		return nil, f.err
+	}
+	var result []store.Job
+	for _, job := range f.jobs {
+		if job.Status == "succeeded" && job.SeriesID == seriesID {
+			result = append(result, job)
+		}
+	}
+	sortJobsLatest(result)
+	return result, nil
+}
+
 func (f *fakeJobStore) GetSucceededJob(_ context.Context, id int64) (store.Job, error) {
 	if f.err != nil {
 		return store.Job{}, f.err