private void GetAlbumsForArtistCallback(IEnumerable <SynoItem> albums, long totalAlbumsCount, SynoItem artist)
{
foreach (var album in albums)
{
AlbumViewModel albumViewModel = _albumViewModelFactory.Create(album);
// prepare an empty track list
albumViewModel.Tracks.Clear();
// album is busy because its tracks are getting loaded.
albumViewModel.IsBusy = true;
_searchService.GetTracksForAlbum(album, (synoTracks, count, containingAlbum) =>
{
// Note - would it work, based on the synoitem instead of the ItemID ?
// Note - we rely on the fact that there each album is only present once in the artists discography ( based on its ItemID ) otherwise, it crashes !
var currentAlbumViewModel = Albums.Single(a => a.Album.ItemID == containingAlbum.ItemID);
currentAlbumViewModel.Tracks.Clear();
foreach (var track in synoTracks)
{
// track guid is empty for now : it will be filled when the track gets added to the playqueue
currentAlbumViewModel.Tracks.Add(this._trackViewModelFactory.Create(Guid.Empty, track, this._pageSwitchingService));
}
currentAlbumViewModel.IsBusy = false;
});
// TODO : Register Selected event and on event handler : Load the album's tracks and navigate to its index in the artist's albums panorama.
// Note : So far, the viewmodels are never removed from the list : that means we don't need to unregister that event. If this changes,
// then it will be necessary to enregister the event for each view model removed from the collection.
albumViewModel.Selected += (s, e) =>
{
string albumId = ((AlbumViewModel)s).Album.ItemID;
_navigatorSevice.UrlParameterToObjectsPlateHeater.RegisterObject(albumId, s);
_navigatorSevice.UrlParameterToObjectsPlateHeater.RegisterObject(artist.ItemID, artist);
Guid albumsListTicket = Guid.NewGuid();
_navigatorSevice.UrlParameterToObjectsPlateHeater.RegisterObject(albumsListTicket.ToString(), this.Albums);
_pageSwitchingService.NavigateToArtistPanorama(artist.ItemID, albumId, albumsListTicket.ToString());
};
Albums.Add(albumViewModel);
}
}
