/// <summary>
/// Gets the newest video information from the channel.
/// </summary>
/// <param name="channelId">Username or channel id.</param>
/// <returns>Newest video information.</returns>
public async Task <YtLocalFavChannelList> GetYtChannelVideoList(string channelId)
{
YtLocalFavChannelList videoList = new YtLocalFavChannelList();
string webResp;
using (var httpClient = new HttpClient())
{
webResp = await httpClient.GetStringAsync(YtApiWebQueryTemplates.GetChannelVideoListQuery(YtApiWebQueryTemplates.GetYoutubeApiKey(), channelId));
}
JObject googleSearch = JObject.Parse(webResp);
IList <JToken> results = googleSearch["items"].Children().ToList();
videoList.channelId = channelId;
videoList.channelTitle = results[0]["snippet"]["channelTitle"].ToString();
videoList.videoTitle = results[0]["snippet"]["title"].ToString();
videoList.videoId = results[0]["id"]["videoId"].ToString();
videoList.imagePath = results[0]["snippet"]["thumbnails"]["default"]["url"].ToString();
DateTime pubTime = DateTime.Parse(results[0]["snippet"]["publishedAt"].ToString(), null, System.Globalization.DateTimeStyles.RoundtripKind);
videoList.publishedAt = $"{pubTime.Date.DayOfWeek}, {pubTime.Date.Day}.{pubTime.Date.Month}.{pubTime.Date.Year} at {pubTime.TimeOfDay.ToString()}";
return(videoList);
}
/// <summary>
/// Handles channel grid tap event, basically removes the "new" -indication from the top-left corner
/// (if any).
/// </summary>
private void ChannelGridTapped(object sender, TappedRoutedEventArgs e)
{
if (ImgNewIcon.Visibility == Visibility.Visible)
{
var tag = ((Grid)sender).Tag;
ObservableCollection <YtLocalFavChannelList> YtFavoritesList = ((App)Application.Current).GetFavoritesList();
YtLocalFavChannelList channelItem = YtFavoritesList.Where(i => i.channelId.Equals(tag.ToString())).Single();
int videoIndex = YtFavoritesList.IndexOf(channelItem);
YtFavoritesList[videoIndex].isNew = false;
((App)Application.Current).SetFavoritesList(YtFavoritesList);
ImgNewIcon.Visibility = Visibility.Collapsed;
}
}
/// <summary>
/// Updates individual channel.
/// </summary>
private async void btnUpdateVideo_Click(object sender, RoutedEventArgs e)
{
var tag = ((Button)sender).Tag;
ObservableCollection <YtLocalFavChannelList> YtFavoritesList = ((App)Application.Current).GetFavoritesList();
YtLocalFavChannelList videoInfo = new YtLocalFavChannelList();
YtWebInterface webIf = new YtWebInterface();
videoInfo = await webIf.GetYtChannelVideoList(tag.ToString());
YtLocalFavChannelList channelItem = YtFavoritesList.Where(i => i.channelId.Equals(tag.ToString())).Single();
int videoIndex = YtFavoritesList.IndexOf(channelItem);
if (YtFavoritesList[videoIndex].videoId != videoInfo.videoId)
{
YtFavoritesList[videoIndex].imagePath = videoInfo.imagePath;
YtFavoritesList[videoIndex].publishedAt = videoInfo.publishedAt;
YtFavoritesList[videoIndex].videoId = videoInfo.videoId;
YtFavoritesList[videoIndex].videoTitle = videoInfo.videoTitle;
((App)Application.Current).SetFavoritesList(YtFavoritesList);
ImgNewIcon.Visibility = Visibility.Visible;
}
}
/// <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);
}
/// <summary>
/// Refreshes all channels in the favorites list.
/// </summary>
private async void RefeshAllChannels()
{
try
{
YtWebInterface webIf = new YtWebInterface();
ObservableCollection <YtLocalFavChannelList> YtFavoritesList;
YtFavoritesList = ((App)Application.Current).GetFavoritesList();
bool updated = false;
// Null check.
if (YtFavoritesList == null)
{
throw new Exception("Cannot update empty favorites list, please add channels first.");
}
// Start progress ring animation.
ProgressRing.Visibility = Visibility.Visible;
ProgressRing.IsActive = true;
// Update favorites list items and check that the video id is really changed.
for (int i = 0; i < YtFavoritesList.Count; i++)
{
YtLocalFavChannelList videoInfo = new YtLocalFavChannelList();
videoInfo = await webIf.GetYtChannelVideoList(YtFavoritesList[i].channelId);
if (YtFavoritesList[i].videoId != videoInfo.videoId)
{
updated = true;
YtFavoritesList[i].imagePath = videoInfo.imagePath;
YtFavoritesList[i].publishedAt = videoInfo.publishedAt;
YtFavoritesList[i].videoId = videoInfo.videoId;
YtFavoritesList[i].videoTitle = videoInfo.videoTitle;
YtFavoritesList[i].isNew = true;
}
}
// Update the list if there has been updates in the list.
if (updated)
{
((App)Application.Current).SetFavoritesList(YtFavoritesList);
ProgressRing.Visibility = Visibility.Collapsed;
ProgressRing.IsActive = false;
ContentFrame.Navigate(typeof(FavoritesPage));
}
else
{
ProgressRing.Visibility = Visibility.Collapsed;
ProgressRing.IsActive = false;
if (isVideoListUpdatedOnStartup == false)
{
ContentFrame.Visibility = Visibility.Visible;
ContentFrame.Navigate(typeof(FavoritesPage));
}
}
// Disable auto-update after the startup.
isVideoListUpdatedOnStartup = true;
}
catch (Exception exp)
{
((App)Application.Current).ShowErrorMessage(exp.Message);
}
finally
{
isVideoListUpdatedOnStartup = true;
}
}
