/// <summary>
/// Gets a list of notifications generated by the device for the specified filter criteria.
/// </summary>
/// <param name="deviceGuid">Device unique identifier.</param>
/// <param name="filter">Notification filter criteria.</param>
/// <returns>A list of <see cref="Notification"/> objects that match specified filter criteria.</returns>
public async Task<List<Notification>> GetNotifications(string deviceGuid, NotificationFilter filter)
{
if (string.IsNullOrEmpty(deviceGuid))
throw new ArgumentException("DeviceGuid is null or empty!", "deviceGuid");
return await _restClient.Get<List<Notification>>(
string.Format("device/{0}/notification", deviceGuid) + _restClient.MakeQueryString(filter));
}
/// <summary>
/// Gets a list of notifications generated by the device for the specified filter criteria.
/// </summary>
/// <param name="deviceGuid">Device unique identifier.</param>
/// <param name="filter">Notification filter criteria.</param>
/// <returns>A list of <see cref="Notification"/> objects that match specified filter criteria.</returns>
public async Task <List <Notification> > GetNotificationsAsync(string deviceGuid, NotificationFilter filter)
{
if (string.IsNullOrEmpty(deviceGuid))
{
throw new ArgumentException("DeviceGuid is null or empty!", "deviceGuid");
}
return(await _restClient.GetAsync <List <Notification> >(
string.Format("device/{0}/notification", deviceGuid) + RestClient.MakeQueryString(filter)));
}
async void LoadNotifications()
{
await StopNotificationsSubscription();
bool loaded = false;
NotificationFilter filter = new NotificationFilter()
{
End = filterNotificationsEnd,
Start = filterNotificationsStart,
SortOrder = SortOrder.DESC
};
var list = new IncrementalLoadingCollection<Notification>(async (take, skip) =>
{
filter.Skip = (int)skip;
filter.Take = (int)take;
try
{
Debug.WriteLine("NTF LOAD START");
var notifications = await ClientService.Current.GetNotificationsAsync(deviceId, filter);
Debug.WriteLine("NTF LOAD END");
return notifications;
}
catch (Exception ex)
{
Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
new MessageDialog(ex.Message, "Error").ShowAsync();
});
throw ex;
}
}, 20);
list.IsLoadingChanged += (s, isLoading) =>
{
LoadingItems += isLoading ? 1 : -1;
if (!isLoading && !loaded)
{
StartNotificationsSubscription();
if (s.Count > 0)
{
// makes server response faster
filter.End = s.First().Timestamp;
}
loaded = true;
}
};
NotificationsObservable = list;
}
