private async Task RenderElementsInListAsync(PageFlagEnum flag)
{
PlaylistModel playlist = (PlaylistModel)PlaylistComboBox.SelectedItem;
var json = await RequestPlaylistItemsAsync(playlist, flag);
System.Diagnostics.Debug.WriteLine((string)Convert.ToString(json));
// Dinamically generate the ListBox Elements based on the api response
playlist.Videos = new List <VideoModel>();
foreach (var x in json.items)
{
if (Convert.ToString(x.snippet.title) != "Private video")
{
playlist.Videos.Add(new VideoModel(
Convert.ToString(x.snippet.thumbnails.medium.url),
Convert.ToString(x.snippet.title),
Convert.ToString(x.snippet.resourceId.videoId),
Convert.ToString(x.snippet.channelTitle),
Convert.ToString(x.snippet.publishedAt)));
}
}
if (!string.IsNullOrEmpty(Convert.ToString(json.nextPageToken)))
{
playlist.NextPageToken = Convert.ToString(json.nextPageToken);
NextQueryButton.Visibility = Visibility.Visible;
}
else
{
playlist.NextPageToken = "";
NextQueryButton.Visibility = Visibility.Hidden;
}
if (!string.IsNullOrEmpty(Convert.ToString(json.prevPageToken)))
{
playlist.PrevPageToken = Convert.ToString(json.prevPageToken);
PrevQueryButton.Visibility = Visibility.Visible;
}
else
{
playlist.PrevPageToken = "";
PrevQueryButton.Visibility = Visibility.Hidden;
}
ListBox.ItemsSource = playlist.Videos;
}
private async Task <dynamic> RequestPlaylistItemsAsync(PlaylistModel playlist, PageFlagEnum flag)
{
if (Properties.Settings.Default.AccessTokenCreationDate.AddSeconds(3900) < DateTime.Now)
{
Authenticator.RefreshToken();
}
// add token refresh logic
string pageToken = "";
switch (flag)
{
case PageFlagEnum.Current:
break;
case PageFlagEnum.Next:
pageToken = playlist.NextPageToken;
break;
case PageFlagEnum.Prev:
pageToken = playlist.PrevPageToken;
break;
}
string requestPlaylistUri = string.Format("https://www.googleapis.com/youtube/v3/playlistItems?part=snippet&maxResults=5&playlistId={0}&pageToken={1}",
playlist.PlaylistId, pageToken);
HttpWebRequest requestPlaylist = (HttpWebRequest)WebRequest.Create(requestPlaylistUri);
requestPlaylist.Method = "GET";
requestPlaylist.Headers.Add(string.Format("Authorization: Bearer {0}", Properties.Settings.Default.AccessToken));
requestPlaylist.ContentType = "application/x-www-form-urlencoded";
requestPlaylist.Accept = "Accept=text/html,application/xhtml+xml,applicaton/xml;q=0.9*/*;q=0.8";
WebResponse playlistResponse = await requestPlaylist.GetResponseAsync();
using (StreamReader userInfoResponseReader = new StreamReader(playlistResponse.GetResponseStream()))
{
// reads response body
string userInfoResponseText = await userInfoResponseReader.ReadToEndAsync();
var JsonResponse = JsonConvert.DeserializeObject <dynamic>(userInfoResponseText);
return(JsonResponse);
}
}
