public NewObjectViewModel(ICttObjectTrackingService cttObjectTrackingService, INavigationService navigationService, ISystemTrayService systemTrayService, IMessageBoxService messageBoxService)
{
_cttObjectTrackingService = cttObjectTrackingService;
_navigationService = navigationService;
_systemTrayService = systemTrayService;
_messageBoxService = messageBoxService;
AddObjectCommand = new RelayCommand(() =>
{
if (string.IsNullOrWhiteSpace(ObjectId))
{
_messageBoxService.Show("Por favor indique o número do objecto", "Erro");
return;
}
_systemTrayService.SetProgressIndicator(string.Format("A adicionar: {0}...", ObjectId));
_cttObjectTrackingService.GetCttObjectTrackingStatus(ObjectId, result =>
{
_systemTrayService.HideProgressIndicator();
if (result.Error != null)
{
_messageBoxService.Show(string.Format("Não foi possível adicionar o objecto \"{0}\"", ObjectId), "Erro");
ScanBarcodeCommand.RaiseCanExecuteChanged();
AddObjectCommand.RaiseCanExecuteChanged();
}
else
{
MessengerInstance.Send <AddObjectMessage>(new AddObjectMessage(_description, result.ETag, result.Data));
_navigationService.GoBack();
ObjectId = null;
}
}, null);
ScanBarcodeCommand.RaiseCanExecuteChanged();
AddObjectCommand.RaiseCanExecuteChanged();
}, () => !IsBusy);
ScanBarcodeCommand = new RelayCommand(() =>
{
_navigationService.NavigateTo(new Uri("/View/ScanBarcodePage.xaml", UriKind.Relative));
}, () => !IsBusy);
MessengerInstance.Register <ScannedBarcodeMessage>(this, message =>
{
ObjectId = message.ObjectId;
});
}
private void RefreshNext(IEnumerator <ObjectDetailsViewModel> enumerator)
{
if (enumerator.MoveNext())
{
var objectModel = enumerator.Current.Model;
var objectId = objectModel.ObjectId;
var etag = objectModel.ETag;
_systemTrayService.SetProgressIndicator(string.Format("A actualizar: {0}...", objectId));
_cttObjectTrackingService.GetCttObjectTrackingStatus(objectId, etag, result =>
{
if (result.Error != null)
{
_systemTrayService.HideProgressIndicator();
_messageBoxService.Show(string.Format("Não foi possível actualizar o objecto \"{0}\"", objectId), "Erro");
return;
}
else if (result.StatusCode != System.Net.HttpStatusCode.NotModified)
{
objectModel.ETag = result.ETag;
objectModel.State = result.Data;
}
RefreshNext(enumerator);
}, null);
}
else
{
enumerator.Dispose();
_systemTrayService.HideProgressIndicator();
_model.Save();
}
}