// public HomeViewModel(ISettingsRepository settingsService, IVersionService versionService) { _settingsService = settingsService; _versionService = versionService; Version = "v" + _versionService.LocalVersion; UpdateCommand = new RelayCommand(Update); UpdateNotificationLogic(); MessengerInstance.Register <Request>(this, async request => { if (request == Request.CheckForUpdates && DateTime.Now > _updateCheckDelay && DateTime.Now > _settingsService.Version.LastChecked) { await _versionService.RefreshVersion(); CheckForUpdates(); _updateCheckDelay = DateTime.Now.AddMinutes(20); } }); }