/// <summary>
/// 設定ファイルを保存する。
/// </summary>
/// <returns></returns>
private Task SaveSettings()
{
this.SettingSaving?.Invoke(this, this.Setting);
var setting = this.Setting;
var player = this.MediaPlayer;
var manager = player.MediaManager;
var settingFilePath = this.GetLocalFilePath(Config.SettingFileName);
var lastTrack = player.Track;
if (lastTrack != null)
{
setting.LastTrackId = lastTrack.Id;
}
var lastPlaylist = player.Playlist as AlbumPlaylist;
if (lastPlaylist != null)
{
setting.LastPlaylistId = lastPlaylist.Album.Id;
}
return(MessagePackUtil.SerializeFile(this.Setting, settingFilePath));
}
private static async Task <T> ParseMessagePackSettingAsync <T>(string filename) where T : class
{
try
{
return(await MessagePackUtil.DeserializeFileAsync <T>(filename).ConfigureAwait(false));
}
catch (Exception ex)
{
throw new Exception($"設定ファイル \"{filename}\" の読み込みに失敗しました。\n{ex.GetMessage()}", ex);
}
}
private static async Task SaveMessagePackSetting <T>(string filename, T setting) where T : class
{
try
{
await MessagePackUtil.SerializeFileAsync(setting, filename).ConfigureAwait(false);
}
catch (Exception ex)
{
throw new Exception($"設定 \"{filename}\" の保存に失敗しました。\n{ex.GetMessage()}", ex);
}
}
/// <summary>
/// 設定ファイルを読み込む。
/// </summary>
/// <returns></returns>
private async Task LoadSettings()
{
var settingFilePath = this.GetLocalFilePath(Config.SettingFileName);
this.Setting = await MessagePackUtil.DeserializeFile <ApplicationSetting>(settingFilePath)
.ConfigureAwait(false);
if (this.Setting == null)
{
this.Setting = new ApplicationSetting();
}
}