private async Task <Video> AddLocalizationToVideo(Video video, AppVideoLocalizeRequest body, string localizationCountHash)
{
TranslationServiceClient service = await translateServiceAccessor.InitializeServiceAsync();
string[] languages = body.TranslationLanguageCollection;
video.Snippet.DefaultLanguage ??= "en"; // TODO replace with language detection
if (body.NullifyVideoLocalizations || video.Localizations == null)
{
video.Localizations = new Dictionary <string, VideoLocalization>();
}
Task[] tasks = new Task[languages.Length];
for (int i = 0; i < languages.Length; i++)
{
string language = languages[i];
tasks[i] = AddLocalizationToVideoTask(service, video, language, localizationCountHash);
}
await Task.WhenAll(tasks); // wait for all localizations to be added
return(video);
}
public async Task <ActionResult <string> > LocalizeVideo([Required, FromBody] AppVideoLocalizeRequest body)
{
string localizationCountHash = Guid.NewGuid().ToString();
intStore[localizationCountHash] = 0;
string[] videos = body.MineChannelVideoUploadCollection;
Task <Video>[] tasks = new Task <Video> [videos.Length];
string userId = User.GetLocalAuthorityNameIdentifier();
YouTubeService service = await youtubeServiceAccessor.InitializeServiceAsync(userId);
VideosResource.ListRequest request = service.Videos.List(VIDEO_LOCALIZE_PART);
request.Id = string.Join(',', videos);
int i = 0;
do
{
VideoListResponse response = await request.ExecuteAsync();
IList <Video> items = response.Items;
foreach (Video item in items)
{
tasks[i++] = LocalizeVideoTask(item, body, localizationCountHash, service); // All other tasks begin their life cycle in a hot state.
}
request.PageToken = response.NextPageToken;
} while (request.PageToken != null);
_ = Task.WhenAll(tasks); // errors will not be caught because no await
return(new ActionResult <string>(localizationCountHash));
}
private async Task <Video> LocalizeVideoTask(Video video, AppVideoLocalizeRequest body, string localizationCountHash, YouTubeService service)
{
video = await AddLocalizationToVideo(video, body, localizationCountHash); // wait for all localizations to be added
video = await UpdateVideo(video, VIDEO_LOCALIZE_PART, service); // update the video
return(video);
}
