/// <summary>
/// Loads stream items from the souncloud api
/// </summary>
/// <param name="count">The amount of items to load</param>
// ReSharper disable once RedundantAssignment
public IAsyncOperation <LoadMoreItemsResult> LoadMoreItemsAsync(uint count)
{
// Return a task that will get the items
return(Task.Run(async() =>
{
_track = PlaybackService.Current.CurrentTrack;
if (_track == null)
{
return new LoadMoreItemsResult {
Count = 0
}
}
;
// We are loading
await DispatcherHelper.ExecuteOnUIThreadAsync(() => { App.IsLoading = true; });
try
{
// Get the comments
var comments = await SoundByteService.Current.GetAsync <CommentListHolder>(string.Format("/tracks/{0}/comments", _track.Id), new Dictionary <string, string>
{
{ "limit", "50" },
{ "cursor", Token },
{ "linked_partitioning", "1" }
});
// Parse uri for offset
var param = new QueryParameterCollection(comments.NextList);
var offset = param.FirstOrDefault(x => x.Key == "offset").Value;
// Get the comment offset
Token = string.IsNullOrEmpty(offset) ? "eol" : offset;
// Make sure that there are comments in the list
if (comments.Items.Count > 0)
{
// Set the count variable
count = (uint)comments.Items.Count;
// Loop though all the comments on the UI thread
await DispatcherHelper.ExecuteOnUIThreadAsync(() =>
{
comments.Items.ForEach(Add);
});
}
else
{
// There are no items, so we added no items
count = 0;
// Reset the token
Token = "eol";
// No items tell the user
await DispatcherHelper.ExecuteOnUIThreadAsync(async() =>
{
await new MessageDialog("Be the first to post a comment.", "No Comments").ShowAsync();
});
}
}
catch (SoundByteException ex)
{
// Exception, most likely did not add any new items
count = 0;
// Reset the token
Token = "eol";
// Exception, display error to the user
await DispatcherHelper.ExecuteOnUIThreadAsync(async() =>
{
await new MessageDialog(ex.ErrorDescription, ex.ErrorTitle).ShowAsync();
});
}
// We are not loading
await DispatcherHelper.ExecuteOnUIThreadAsync(() => { App.IsLoading = false; });
// Return the result
return new LoadMoreItemsResult {
Count = count
};
}).AsAsyncOperation());
}
/// <summary>
/// Get comments for a track
/// </summary>
/// <param name="track"></param>
public CommentModel(Core.API.Endpoints.Track track)
{
_track = track;
}