/// <summary>
/// Imports the user tracks.
/// </summary>
/// <param name="userId">The user identifier.</param>
/// <param name="username">The username.</param>
/// <param name="page">The page.</param>
/// <returns></returns>
public async Task ImportUserTracks(string userId, string username, int page)
{
ApplicationUser user = _userManager.FindById(userId);
Uri trackUri = new Uri(
$"http://ws.audioscrobbler.com/2.0/?method=user.getrecenttracks&api_key={ApiKey}&format=json"
+ $"&limit=200&user={username}&page={page}");
HttpResponseMessage result = await(new HttpClient()).GetAsync(trackUri);
if (result.IsSuccessStatusCode)
{
JObject response = JObject.Parse(await result.Content.ReadAsStringAsync());
JToken recentTracks = response["recenttracks"]["track"];
int totalPages = (int)response["recenttracks"]["@attr"]["totalPages"];
foreach (JObject item in recentTracks)
{
string artistName = (string)item["artist"]["#text"];
if (!_redis.KeyExists($"matchfm.ids.artists.{artistName}"))
{
Meta artist = _artistRepository.FetchOrCreateByName(new Artist
{
Name = artistName
});
_redis.StringSet($"matchfm.ids.artists.{artistName}", artist.Id);
}
}
foreach (JObject item in recentTracks)
{
string artistName = (string)item["artist"]["#text"];
string albumName = (string)item["album"]["#text"];
if (!_redis.KeyExists($"matchfm.ids.artists.{artistName}.albums.{albumName}"))
{
int artistId = (int)_redis.StringGet($"matchfm.ids.artists.{artistName}");
Meta album = _albumRepository.FetchOrCreateByNameAndArtist(new Album
{
Name = albumName,
ArtistId = artistId
});
_redis.StringSet($"matchfm.ids.artists.{artistName}.albums.{albumName}", album.Id);
}
}
foreach (JObject item in recentTracks)
{
string artistName = (string)item["artist"]["#text"];
string albumName = (string)item["album"]["#text"];
string trackName = (string)item["name"];
DateTime listenDate = new DateTime(1970, 1, 1, 0, 0, 0, 0);
listenDate = listenDate.AddSeconds((int)item["date"]["uts"]);
int trackId;
if (!_redis.KeyExists($"matchfm.ids.artists.{artistName}.albums.{albumName}.tracks.{trackName}"))
{
int albumId = (int)_redis.StringGet($"matchfm.ids.artists.{artistName}.albums.{albumName}");
trackId = ((Track)_trackRepository.FetchOrCreateByNameAndAlbum(new Track
{
Name = trackName,
AlbumId = albumId
})).Id;
_redis.StringSet($"matchfm.ids.artists.{artistName}.albums.{albumName}.tracks.{trackName}",
trackId);
}
else
{
trackId =
(int)
_redis.StringGet($"matchfm.ids.artists.{artistName}.albums.{albumName}.tracks.{trackName}");
}
UserTracks userTrack = new UserTracks
{
User = user,
TrackId = trackId,
ListenDate = listenDate
};
_context.UserTracks.Add(userTrack);
}
_context.SaveChanges();
if (page < totalPages)
{
BackgroundJob.Enqueue <LastFMImportJob>(x => x.ImportUserTracks(userId, username, page + 1));
}
_context.SaveChanges();
}
}
