public async Task <DateTime> DetermineMusicLibraryLastUpdateDate()
{
var sections = await DiscoverMusicSections();
if (MusicSections == null)
{
sections = MusicSections;
}
return(MusicSections.Max(p => p.LastUpdated));
}
public async Task GetMusicSectionDetails()
{
DoProgress("Getting music section details");
var sections = await DiscoverMusicSections();
if (MusicSections == null)
{
DoProgress("No existing data; rebuilding from scratch");
MusicSections = sections;
}
else
{
//TODO: Delete Old Ones..
//TODO: Add New Ones..
//Yeah this needs to go into one linq statement, but have a three year old bothering me right now..
DoProgress("Merging music data");
foreach (var section in sections)
{
if (MusicSections.Exists(p => p.Key == section.Key))
{
var ms = MusicSections.Single(p => p.Key == section.Key);
if (ms.LastUpdated < section.LastUpdated)
{
//Puke, need to just figure out what changed, not reload whole collection
ms.LastProcessed = null;
}
}
else
{
MusicSections.Add(section);
section.LastProcessed = null;
}
}
}
var sectionsNeverUpdated = MusicSections.Where(p => p.LastProcessed == null);
foreach (var section in sectionsNeverUpdated)
{
var artists = await GetMusicSectionArtists(section);
section.LastProcessed = DateTime.Now;
section.Artists = artists;
DoProgress(String.Format("Added section '{0}', {1} artists", section.Name, artists.Count));
}
PopulateIndicies();
}
private void PopulateIndicies()
{
lock (this)
{
var artists = MusicSections.SelectMany(p => p.Artists ?? Enumerable.Empty <Artist>());
var albums = artists.SelectMany(p => p.Albums ?? Enumerable.Empty <Album>());
trackIndex = albums
.SelectMany(p => p.Tracks ?? Enumerable.Empty <Track>())
.Select(p => new KeyValuePair <string, Track>(p.Key, p))
.ToDictionary(kv => kv.Key, kv => kv.Value);
albumIndex = albums
.Select(p => new KeyValuePair <string, Album>(p.Key, p))
.ToDictionary(kv => kv.Key, kv => kv.Value);
artistIndex = artists
.Select(p => new KeyValuePair <string, Artist>(p.Key, p))
.ToDictionary(kv => kv.Key, kv => kv.Value);
}
}
