private static async Task <SpotifyAlbumDownloadModel> FetchAlbumForIndexAsync(
string albumIdentifier,
SpotifyAPICredentials spotifyAPICredentials)
{
var spotifyClient = SearchHelper.CreateSpotifyClient(spotifyAPICredentials);
var album = await spotifyClient.Albums.Get(albumIdentifier);
var artists = await ArtistModel.FetchArtistsAsync(album.Artists.Select(a => a.Id).ToList(), spotifyAPICredentials);
var spotifyAlbumDownloadModel = new SpotifyAlbumDownloadModel
{
Artists = artists,
Album = album
};
return(spotifyAlbumDownloadModel);
}
private static async Task <List <TrackArtist> > MapTrackArtistsAsync(
SimpleTrack track,
HashSet <string> albumArtistsSpotifyIds,
IEnumerable <Artist> albumArtists,
IRepositoryManager repositoryManager,
IMapper mapper,
SpotifyAPICredentials spotifyAPICredentials)
{
List <TrackArtist> trackArtists = new List <TrackArtist>();
List <string> trackArtistsToBeCreated = new List <string>();
var trackArtistSpotifyIds = track.Artists.Select(a => a.Id).ToHashSet();
foreach (var trackArtist in track.Artists)
{
if (albumArtistsSpotifyIds.Contains(trackArtist.Id))
{
var albumArtist = albumArtists.Where(a => a.SpotifyId == trackArtist.Id).FirstOrDefault();
trackArtists.Add(new TrackArtist
{
ArtistId = albumArtist.Id,
CreatedOn = DateTime.Now,
LastUpdatedOn = DateTime.Now
});
}
else
{
trackArtistsToBeCreated.Add(trackArtist.Id);
}
}
if (trackArtistsToBeCreated.Count > 0)
{
var newArtists = await ArtistModel.FetchArtistsAsync(trackArtistsToBeCreated, spotifyAPICredentials);
var artists = await ArtistModel.CreateOrFetchArtistAsync(newArtists, repositoryManager, mapper);
trackArtists.AddRange(MapArtistsToTrackArtists(artists.Select(a => a.Id).ToList()));
}
return(trackArtists);
}