/// <summary>
/// Return if releases exist in repository for artist, if not fetch from MusicBrainz and populate then return
/// </summary>
/// <param name="artistMbId">Artist Music Brainz Id</param>
/// <returns>Collection of Music Brainz Releases</returns>
public async Task <IEnumerable <Release> > ReleasesForArtist(string artistMbId)
{
IEnumerable <Release> results = null;
try
{
using (var db = new LiteDatabase(FileName))
{
var col = db.GetCollection <RepositoryRelease>("releases");
col.EnsureIndex(x => x.ArtistMbId);
col.EnsureIndex(x => x.Release.id);
var releases = col.Find(x => x.ArtistMbId == artistMbId);
if (releases == null || !releases.Any())
{
// Query to get collection of Releases for Artist
var pageSize = 50;
var page = 0;
var url = MusicBrainzRequestHelper.CreateArtistBrowseTemplate(artistMbId, pageSize, 0);
var mbReleaseBrowseResult = await MusicBrainzRequestHelper.GetAsync <ReleaseBrowseResult>(url);
var totalReleases = mbReleaseBrowseResult != null ? mbReleaseBrowseResult.releasecount : 0;
var totalPages = Math.Ceiling((decimal)totalReleases / pageSize);
var fetchResult = new List <Release>();
do
{
if (mbReleaseBrowseResult != null)
{
fetchResult.AddRange(mbReleaseBrowseResult.releases.Where(x => !string.IsNullOrEmpty(x.date)));
}
page++;
mbReleaseBrowseResult = await MusicBrainzRequestHelper.GetAsync <ReleaseBrowseResult>(MusicBrainzRequestHelper.CreateArtistBrowseTemplate(artistMbId, pageSize, pageSize *page));
} while (page < totalPages);
col.InsertBulk(fetchResult.Select(x => new RepositoryRelease
{
ArtistMbId = artistMbId,
Release = x
}));
results = fetchResult;
}
else
{
results = releases.Select(x => x.Release).ToArray();
}
}
}
catch (HttpRequestException ex)
{
Logger.LogTrace($"MusicBrainz:ReleasesForArtist, Artist [{ artistMbId }], Ex [{ ex.ToString() }]");
}
catch (Exception ex)
{
Logger.LogError(ex);
}
return(results.OrderBy(x => x.date).ThenBy(x => x.title).ToArray());
}
public async Task <IEnumerable <Release> > ReleasesForArtist(string artist, string artistMusicBrainzId = null)
{
try
{
var artistSearch = await this.PerformArtistSearch(artist, 1);
if (artistSearch == null || !artistSearch.IsSuccess)
{
return(null);
}
var mbArtist = artistSearch.Data.First();
if (string.IsNullOrEmpty(artistMusicBrainzId))
{
if (mbArtist == null)
{
return(null);
}
artistMusicBrainzId = mbArtist.MusicBrainzId;
}
var cacheKey = string.Format("uri:musicbrainz:ReleasesForArtist:{0}", artistMusicBrainzId);
var result = this.CacheManager.Get <List <Release> >(cacheKey);
if (result == null)
{
var pageSize = 50;
var page = 0;
var url = MusicBrainzRequestHelper.CreateArtistBrowseTemplate(artistMusicBrainzId, pageSize, 0);
var mbReleaseBrowseResult = await MusicBrainzRequestHelper.GetAsync <ReleaseBrowseResult>(url);
var totalReleases = mbReleaseBrowseResult != null ? mbReleaseBrowseResult.releasecount : 0;
var totalPages = Math.Ceiling((decimal)totalReleases / (decimal)pageSize);
result = new List <Release>();
do
{
if (mbReleaseBrowseResult != null)
{
result.AddRange(mbReleaseBrowseResult.releases);
}
page++;
mbReleaseBrowseResult = await MusicBrainzRequestHelper.GetAsync <ReleaseBrowseResult>(MusicBrainzRequestHelper.CreateArtistBrowseTemplate(artistMusicBrainzId, pageSize, pageSize *page));
} while (page < totalPages);
result = result.OrderBy(x => x.date).ThenBy(x => x.title).ToList();
this.CacheManager.Add(cacheKey, result);
}
return(result);
}
catch (HttpRequestException)
{
}
catch (Exception ex)
{
this.Logger.LogError(ex);
}
return(null);
}
