/// <summary>
/// Gets the channel information by username or channel ID.
/// </summary>
/// <param name="username">Username or channel id.</param>
/// <returns>Channel information (YtChannelInfo)</returns>
public async Task <YtChannelInfo> GetYtChannelInfoByUser(string username)
{
YtChannelInfo channelInfo = new YtChannelInfo();
string webResp;
using (var httpClient = new HttpClient())
{
webResp = await httpClient.GetStringAsync(YtApiWebQueryTemplates.GetChannelInfoQuery(YtApiWebQueryTemplates.GetYoutubeApiKey(), username));
}
JObject googleSearch = JObject.Parse(webResp);
IList <JToken> results = googleSearch["items"].Children().ToList();
channelInfo.etag = results[0]["etag"].ToString();
channelInfo.kind = results[0]["kind"].ToString();
channelInfo.id = results[0]["id"].ToString();
return(channelInfo);
}
/// <summary>
/// Updates the favorites list with channel information
/// </summary>
/// <param name="URL">Channel URL</param>
///
/// Notes/reference: http://stackoverflow.com/questions/30081301/getting-all-videos-of-a-channel-using-youtube-api
public async void UpdateInfo(string URL)
{
string username = GetUserNameFromUrl(URL);
bool isChannel = IsUrlFromChannel(URL);
YtChannelInfo channelInfo = new YtChannelInfo();
YtLocalFavChannelList videoInfo = new YtLocalFavChannelList();
// Check whether the URL is by channel or username.
if (isChannel)
{
channelInfo.id = username;
channelInfo.kind = string.Empty;
channelInfo.etag = string.Empty;
}
else
{
channelInfo = await GetYtChannelInfoByUser(username);
}
// Get channel information
videoInfo = await GetYtChannelVideoList(channelInfo.id);
// Fetch the current favorites list
YtFavoritesList = ((App)Application.Current).GetFavoritesList();
// Check whether the channel already exists in the favorites list and throw
// an exception if so.
try
{
if (YtFavoritesList != null)
{
YtLocalFavChannelList channelItem = YtFavoritesList.Where(i => i.channelId.Equals(videoInfo.channelId)).SingleOrDefault();
if (channelItem != null)
{
throw new Exception("Item already exists!");
}
}
}
catch (Exception ex)
{
MessageDialog errMessage = new MessageDialog($"Channel (id={videoInfo.channelId}) already exists!");
errMessage.Commands.Add(new UICommand("OK")
{
Id = 0
});
errMessage.DefaultCommandIndex = 0;
var result = await errMessage.ShowAsync();
return;
}
// Update with username and information whether it's a channel.
videoInfo.username = username;
videoInfo.isChannel = isChannel;
YtFavoritesList.Add(videoInfo);
// Save to: C:\Users\Pasi\AppData\Local\Packages\ebade9e5-3eb8-4ce8-a6c4-05919d244312_xd9n95tjqv3aw\LocalState
((App)Application.Current).SetFavoritesList(YtFavoritesList);
}
