/// <summary>
/// Catch PlayerEvent and schedule new lastfm query, as long as current Artist is not the last artist queried
/// </summary>
/// <param name="args">
/// A <see cref="PlayerEventArgs"/>
/// </param>
private static void OnPlayerEvent(PlayerEventArgs args)
{
DatabaseTrackInfo currentTrack = ServiceManager.PlayerEngine.CurrentTrack as DatabaseTrackInfo;
if (currentTrack == null)
{
return;
}
long currentArtistId = currentTrack.ArtistId;
if (ServiceManager.PlayerEngine.ActiveEngine.CurrentState == PlayerState.Playing && !processedArtists.Contains(currentArtistId))
{
if (!weightedRandom.Contains(currentArtistId))
{
// User changed Track to a not similar artist, clear list
Log.Debug("RandomByLastfmSimilarArtists: User changed track, clearing lists and resetting depth");
weightedRandom.Clear();
weightedRandom.Add(currentArtistId, 1d);
}
lock (searchActive_lock) {
if (searchActive)
{
Log.Debug("RandomByLastfmSimilarArtists: Another Query is already running, aborting");
return;
}
else
{
searchActive = true;
}
}
ThreadAssist.SpawnFromMain(delegate {
QueryLastfm();
lock (searchActive_lock) {
searchActive = false;
}
});
}
}
/// <summary>
/// Query Lastfm for UserTopArtists
/// </summary>
/// <remarks>Executed via Kernel Scheduler</remarks>
public static void QueryLastfm()
{
Account account = LastfmCore.Account;
if (string.IsNullOrEmpty(account.UserName) || !ServiceManager.Get <Network>().Connected)
{
return;
}
LastfmUserData userData = new LastfmUserData(account.UserName);
LastfmData <UserTopArtist> topArtists = userData.GetTopArtists(TopType.Overall);
Log.Debug("RandomByLastfmUserTopArtists: Searching for present artists");
Dictionary <int, int> artists = GetPresentArtists(topArtists);
Log.Debug(String.Format("RandomByLastfmUserTopArtists: Found {0} of {1} Artists", artists.Count, topArtists.Count));
foreach (int cArtistId in artists.Keys)
{
weightedRandom.Add(cArtistId, artists[cArtistId]);
}
}
