public async Task <User> LogUserAsync(LoginCredentials login)
{
_uiServices.ShowLoading("Login em andamento, aguarde...");
return(await _policies.GetPolicies().ExecuteAsync(async() =>
{
if (!_connectivityService.IsConnected())
{
throw new NoInternetException();
}
login.Email = login.Email.Trim();
var user = await _api.LogUserAsync(login);
_uiServices.HideLoading();
if (user == null)
{
throw new UserNotFoundException();
}
await _sessionManager.StartSessionAsync(user);
_uiServices.HideLoading();
return user;
}));
}
public async Task RefreshAsync()
{
// Check connectivity
if (!connectivityService.IsConnected())
{
return;
}
IsLoading = true;
// Update photo with detailed information
Photo = await photoService.GetPhotoDetails(Photo.Id);
// Check if photo is a current user's one
try
{
var currentUser = await photoService.GetCurrentUser();
if (currentUser.UserId == Photo.User.UserId)
{
IsCurrentUsersPhoto = true;
}
else
{
IsCurrentUsersPhoto = false;
}
}
catch (UnauthorizedException)
{
IsCurrentUsersPhoto = false;
}
IsLoading = false;
}
public async Task <IEnumerable <Event> > GetEvents(bool updateFromServer = true)
{
if (!_connectivityService.IsConnected())
{
updateFromServer = false;
}
/*Get events from local DB*/
if (!updateFromServer)
{
var eventsLocal = await _eventRepository.EnumerateAllAsync();
eventsLocal.ForEach(e =>
{
e.Vouchers = _voucherRepository.GetListByPredicate(v => v.EventId == e.Id);
});
if (eventsLocal != null)
{
return(eventsLocal);
}
}
/*Get events from server*/
_uiServices.ShowLoading("Carregando seus Eventos, aguarde");
var events = await
_eventPolicies.GetPolicies().ExecuteAsync(async() =>
{
return(await _voucherApi.GetEventsAsync(_sessionManager.GetUserId(), _sessionManager.GetUserToken()));
});
_uiServices.HideLoading();
/*Removing existing events from local DB*/
await _eventRepository.RemoveAllAsync();
if (events != null)
{
await _eventRepository.AddAllAsync(events);/*Adding the new events to local DB*/
}
var vouchers = events.SelectMany(e => e.Vouchers);
await _voucherRepository.RemoveAllAsync();
if (vouchers != null)
{
await _voucherRepository.AddAllAsync(vouchers);
}
return(events);
}
public async Task InitAsync()
{
// Check connectivity
if (!connectivityService.IsConnected())
{
return;
}
// Load available categories
var categories = await photoService.GetCategories();
CategoryOptions.ReplaceRange(categories);
}
public async Task RefreshAsync(bool force = false)
{
if ((IsLoaded || IsLoading) && !force)
{
return;
}
IsLoading = true;
// Check connectivity
if (!connectivityService.IsConnected())
{
IsLoading = false;
return;
}
if (categoryId != null)
{
var photosForCategory = await photoService.GetPhotosForCategoryId(categoryId);
Photos.ReplaceRange(photosForCategory.Items);
// TODO: Implement pagination, as this only loads photos for the fist page.
}
IsLoaded = true;
IsLoading = false;
}
public async Task InitAsync()
{
// Check connectivity
if (!connectivityService.IsConnected())
{
return;
}
try
{
var currentUser = await photoService.GetCurrentUser();
IsLoggedIn = true;
await SetupUser(currentUser);
}
catch (UnauthorizedException)
{
IsLoggedIn = false;
}
}
public override async Task Initialize()
{
this.TitleText = Constants.APP_NAME;
this.SubTitleText = Constants.APP_SUB_NAME;
this.ErrorButtonText = Constants.ERROR_BUTTON_TEXT;
this.ProgressBarTitle = Constants.PROGRESS_BAR_TITLE;
IsConnected = _connectivityService.IsConnected();
this.ErrorMessage = (!IsConnected ? Constants.CONNECT_INTERNET_MSG : String.Empty);
}
public async Task RefreshAsync(bool force = false)
{
// Check connectivity
if (!connectivityService.IsConnected())
{
await ShowNoConnectionDialog(dialogService);
return;
}
// Check if ViewModel is already loaded or refreshing
if (IsLoading || (IsLoaded && !force))
{
return;
}
IsLoading = true;
// Don't use placeholders when PullToRefresh is used
//if (!force)
//{
// // Get Mock Data to show placeholders
// HeroImages.ReplaceRange(MockData.GetHeroImages());
// //TopCategories.ReplaceRange(MockData.GetTopCategories());
// TopCategories = new ObservableRangeCollection<GroupedCategoryPreview>(MockData.GetTopCategories());
//}
// Get current user
try
{
// Try to restore user credentials
if (AzureAppService.Current.CurrentUser == null)
{
await photoService.RestoreSignInStatusAsync();
}
CurrentUser = await photoService.GetCurrentUser();
}
catch (Exception ex)
{
if (ex is UnauthorizedException || ex is ServiceException)
{
// User not logged in yet
CurrentUser = null;
}
else
{
throw;
}
}
// Load hero images
var heroes = await photoService.GetHeroImages(5);
HeroImages.ReplaceRange(heroes);
// Load categories
var topCat = await photoService.GetTopCategories(6);
var grouped =
from category in topCat
group category by category.Name into categoryGroup
select new GroupedCategoryPreview(categoryGroup.First()?.PhotoThumbnails, categoryGroup.Key, categoryGroup.Key.Substring(0, 1), categoryGroup.FirstOrDefault());
//HACK: Re-initializing because FlowListView crashes when Replacing lists at the moment.
TopCategories = new ObservableRangeCollection <GroupedCategoryPreview>(grouped);
//TopCategories.ReplaceRange(grouped);
// Check if loading went right
IsLoaded = HeroImages.Count > 0 || TopCategories.Count > 0;
IsLoading = false;
}
