public AppSettingsViewModel(AppSettings settings)
{
Settings = settings;
Settings.Changed += Settings_Changed;
LoadPaths = new ObservableCollection<ExplorerItem>();
InitLoadPaths();
SaveToDiskCommand = new AsyncCommand(
(o) => Settings.WriteToDisc(),
(o) => Settings.HasUnsavedChanges,
(t) => {
if(t.IsFaulted)
Application.Current.Dispatcher.Invoke(() => new ExceptionWindow(t.Exception).Show());
});
Settings.Changed += (s, a) => ((AsyncCommand)SaveToDiskCommand).RaiseCanExecuteChanged();
OpenFileLocationCommand = new RelayCommand(o => System.Diagnostics.Process.Start("explorer.exe", $"/select, {Settings.FullFilePath}"));
}
private void SetupCommands()
{
PlaySongCommand = new AsyncCommand(
execute: (s) => {
UIEnabled = false;
if(s as Song != null) {
Playlist.SelectFirstMatch((Song)s);
if(SongPlayer.PlayerState != PlayerState.Playing) {
SongPlayer.PlayerState = PlayerState.Playing;
}
}
},
continueWith: t => UIEnabled = true,
canExecute: (s) => SongPlayer != null && s as Song != null
);
ReverseSortCommand = new RelayCommand((o) => Playlist.Reverse(), (o) => Playlist != null);
SortByCommand = new RelayCommand(
(o) => {
var pi = o as PropertyInfo;
if(pi.DeclaringType == typeof(Song)) {
Playlist.Order((s) => pi.GetValue(s));
} else if(pi.DeclaringType == typeof(SongFile)) {
Playlist.Order((s) => pi.GetValue(s.File));
}
},
(o) => o as PropertyInfo != null && (((PropertyInfo)o).DeclaringType == typeof(Song) || ((PropertyInfo)o).DeclaringType == typeof(SongFile))
);
SortBySearchCommand = new RelayCommand(
_ => {
var reg = new Regex(SearchText, RegexOptions.IgnoreCase);
SearchText = string.Empty;
Playlist.Order(s => {
var res = 0;
res += (reg.IsMatch(s.Title ?? string.Empty) ? 0 : 3);
res += (reg.IsMatch(s.Artist ?? string.Empty) ? 0 : 2);
res += (reg.IsMatch(s.Album ?? string.Empty) ? 0 : 1);
return res;
});
},
_ => !string.IsNullOrEmpty(SearchText)
);
RemoveSongsCommand = new RelayCommand((o) => {
Playlist.Remove(((IEnumerable<SongViewModel>)o).Select(svm => svm.Song));
}, (o) => {
var songs = o as IEnumerable<SongViewModel>;
return songs != null && songs.Count() > 0;
});
SearchCommand = new RelayCommand((o) => FillPlaylist(o as string));
AddFilesCommand = new AsyncCommand(async (dyn) => {
dynamic input = dyn;
UIEnabled = false;
var paths = input.Paths as string[];
Song position = (input.Position as Song) ?? Playlist.LastOrDefault();
if(paths != null) {
var addFiles = await SongFileReader.ReadFilePathsAsync(paths);
var added = Playlist.AddSong(addFiles);
Playlist.MoveTo(position, added.ToArray());
}
}, (t) => {
UIEnabled = true;
if(t.IsFaulted)
Application.Current.Dispatcher.BeginInvoke((Action)(() => new ExceptionWindow(t.Exception).Show()));
});
MovePlaylistSongsCommand = new GenericRelayCommand<Tuple<SongViewModel[], SongViewModel>>(inp => {
Playlist.MoveTo(inp.Item2.Song, inp.Item1.Select(svm => svm.Song).ToArray());
}, (inp) => {
return (inp.Item1?.Length ?? 0) > 0 && inp.Item2?.Song != null;
});
}