private async Task DownloadData()
{
if (!_navigationService.IsNetworkAvailable)
{
RetryIsVisible = true;
return;
}
RetryIsVisible = false;
try
{
ProgressIsVisible = true;
var genresResponse = await _musicClient.GetGenresAsync();
if (genresResponse.Error != null || (genresResponse.Result == null))
{
Log.ErrorException("Error getting genres", genresResponse.Error);
// TODO: Display an error
RetryIsVisible = true;
ProgressIsVisible = false;
return;
}
var genres = genresResponse.Result;
await _asyncStorageService.WriteAllTextAsync(Constants.GenreDataFile, await JsonConvert.SerializeObjectAsync(genres));
Log.Info("Genres written to IsolatedStorage");
var tracks = new List <Product>();
foreach (var genre in genres.Where(x => !x.Name.Equals("Comedy")))
{
var trackResponse = await _musicClient.SearchGenreAsync(genre.Id, category : Category.Track, startIndex : 0, itemsPerPage : 100);
if (trackResponse.Error == null)
{
Debug.WriteLine("TopProductsForGenre ({0}): {1} tracks", genre.Name, trackResponse.Result.Count);
tracks.AddRange(trackResponse.Result.Cast <Product>());
}
}
await _asyncStorageService.WriteAllTextAsync(Constants.GameDataFile, await JsonConvert.SerializeObjectAsync(tracks));
Log.Info("Tracks written to IsolatedStorage");
NavigateTo(Constants.Pages.MainPage + Constants.ClearBackStack);
}
catch (Exception ex)
{
Log.ErrorException("Error download data", ex);
}
ProgressIsVisible = false;
}
private async Task <bool> CheckForGameData()
{
var genres = _settingsService.Get("Genres", default(List <Genre>));
if (genres != default(List <Genre>))
{
await _asyncStorageService.WriteAllTextAsync(Constants.GenreDataFile, await JsonConvert.SerializeObjectAsync(genres));
_settingsService.Reset("Genres");
}
else
{
if (!await _asyncStorageService.FileExistsAsync(Constants.GenreDataFile))
{
return(false);
}
var genreJson = await _asyncStorageService.ReadAllTextAsync(Constants.GenreDataFile);
genres = await JsonConvert.DeserializeObjectAsync <List <Genre> >(genreJson);
if (genres == null || !genres.Any())
{
return(false);
}
var allGenreCheck = genres.FirstOrDefault(x => x.Name.Equals(GameViewModel.AllGenres));
if (allGenreCheck == default(Genre))
{
genres.Insert(0, new Genre {
Name = GameViewModel.AllGenres
});
}
var comedyGenreCheck = genres.FirstOrDefault(x => x.Name.Equals("Comedy"));
if (comedyGenreCheck != default(Genre))
{
genres.Remove(comedyGenreCheck);
}
}
Genres = genres;
App.SettingsWrapper.AppSettings.DefaultGenre = Genres.FirstOrDefault(x => x.Name.Equals(App.SettingsWrapper.AppSettings.DefaultGenre.Name));
if (SimpleIoc.Default.GetInstance <GameViewModel>() == null)
{
return(false);
}
Messenger.Default.Send(new NotificationMessage(genres, Constants.Messages.HereAreTheGenresMsg));
if (!await _asyncStorageService.FileExistsAsync(Constants.GameDataFile))
{
return(false);
}
var tracksJson = await _asyncStorageService.ReadAllTextAsync(Constants.GameDataFile);
try
{
var tracks = await JsonConvert.DeserializeObjectAsync <List <Product> >(tracksJson);
if (tracks.Any())
{
Messenger.Default.Send(new NotificationMessage(tracks, Constants.Messages.HereAreTheTracksMsg));
return(true);
}
}
catch (Exception ex)
{
Log.ErrorException("Deserializing tracks", ex);
}
return(false);
}