public override async Task ProcessInternal(long id, DirectoryInfo workDir, CancellationToken token, ILog log)
        {
            var vkAlbums = await vkApiUtils.GetAllPagesAsync(vkApiUtils.PhotoAlbums(id), int.MaxValue, token, log);

            var expandTasks = vkAlbums.Select(album => vkApiUtils.ExpandAlbum(album, token, log));
            var albums      = await Task.WhenAll(expandTasks);

            var allPhotos = await vkApiUtils.GetAllPagesAsync(vkApiUtils.Photos(id), 100, token, log);

            var photosInAlbums = albums
                                 .SelectMany(awp => awp.Photo.Select(photo => photo.Id.Value))
                                 .ToHashSet();
            var uniquePhotos = allPhotos
                               .Where(photo => !photosInAlbums.Contains(photo.Id.Value))
                               .ToList();
            var defaultAlbum = new AlbumWithPhoto(uniquePhotos);

            var allAlbums = albums.ToList();

            if (defaultAlbum.Photo.Any())
            {
                allAlbums.Add(defaultAlbum);
            }

            var allTasks = allAlbums
                           .OrderBy(p => p.Album.Created)
                           .Select(p => albumHandler.Process(p, workDir, token, log));
            await Task.WhenAll(allTasks);
        }