private void ParseYouTubeSearchResults(YouTubeSearchRequest searchRequest, SearchListResponse searchResults)
//================================================================================================================
// Parse the given YouTube search results into a search results list
//
// Parameters
// searchRequest: YouTube search request data
// searchResults: YouTube search results data
//
// Outputs
// The SearchResults list in the searchRequest object is populated
//================================================================================================================
{
int resultCount = 0;
foreach (SearchResult searchResult in searchResults.Items)
{
// Bump the result count
resultCount++;
// Create and initialize a new YouTube search result
YouTubeSearchResult item = new YouTubeSearchResult
{
SessionKey = searchRequest.SessionKey,
ResultNo = resultCount,
YouTubeVideoId = searchResult.Id.VideoId,
Title = searchResult.Snippet.Title,
Description = searchResult.Snippet.Description,
ThumbnailURL = searchResult.Snippet.Thumbnails.Default__.Url,
YouTubeURL = string.Format(YOU_TUBE_LINK, searchResult.Id.VideoId)
};
// Add this result to the collection
searchRequest.SearchResults.Add(item);
}
}
/// <summary>
/// Retrieves the information about the YouTube video.
/// </summary>
/// <param name="videoId"></param>
/// <param name="cancellationToken"></param>
/// <returns></returns>
private async Task <bool> GetVideoAsync(string videoId, CancellationToken cancellationToken)
{
if (cancellationToken.IsCancellationRequested)
{
return(false);
}
YouTubeService youtubeService = new YouTubeService(new BaseClientService.Initializer()
{
ApiKey = Settings.Default.YouTubeApiKey, // "AIzaSyBvZfGSa9NUidAMyvT73Kja3ShotaI9VO0",
ApplicationName = Settings.Default.YouTubeClientId // "YouTubeClient"
});
_log.Info("successfully init youtubeService in GetVideoAsync");
try
{
string part = "snippet";
string fields = "items(id, snippet(title, description))";
if (_extendedProps)
{
part = "snippet, statistics, contentDetails";
fields = "items(id, snippet(title, channelTitle, channelId, publishedAt, description, thumbnails), statistics(viewCount, likeCount, dislikeCount), contentDetails(duration))";
}
var videosListRequest = youtubeService.Videos.List(part);
_log.Info("Got video list in GetVideoAsync()");
// Set the request filters
videosListRequest.Id = videoId;
videosListRequest.Fields = fields;
// Call the videos.list method to retrieve results matching the specified query term.
var videosListResponse = await videosListRequest.ExecuteAsync(cancellationToken);
_log.Info("Called the videos.list method to retrieve results matching the specified query term. ");
// Create the YouTubeSearchResult object from the YouTube Video.
YouTubeSearchResult result = YouTubeParser.ParseResult(videosListResponse.Items[0], _parser, _query);
await System.Windows.Application.Current.Dispatcher.BeginInvoke(
System.Windows.Threading.DispatcherPriority.Normal, new Action(() =>
{
if (!cancellationToken.IsCancellationRequested)
{
_store.Add(result);
}
}));
return(true);
}
catch (Exception ex)
{
_log.Error("Exception in GetVideoAsync", ex);
return(false);
}
finally
{
youtubeService.Dispose();
}
}
public static SearchResult From(YouTubeSearchResult result)
{
return(new SearchResult
{
Type = result.Type,
Author = result.Author,
Description = result.Description,
Duration = result.Duration,
Thumbnail = result.Thumbnail,
Title = result.Title,
Url = result.Url,
ViewCount = result.ViewCount,
VideoCount = result.VideoCount
});
}
public static YouTubeSearchResult ParseResult(Video video, ParserFunction parser, string keyword)
{
YouTubeSearchResult result = new YouTubeSearchResult();
result.Id = video.Id;
result.Title = video.Snippet.Title;
result.ChannelTitle = video.Snippet.ChannelTitle;
result.ViewCount = video.Statistics?.ViewCount;
result.PublishedDate = video.Snippet.PublishedAt;
result.LikeCount = video.Statistics?.LikeCount;
result.DislikeCount = video.Statistics?.DislikeCount;
result.Description = video.Snippet.Description;
result.Source = "YouTube";
result.SourceAddress = string.Format("https://www.youtube.com/watch?v={0}", video.Id);
result.Domains = parser.Invoke(video.Snippet.Description, "YouTube", keyword);
result.ThumbnailUrl = video.Snippet.Thumbnails?.Medium.Url;
result.Duration = Assistant.ToTimeSpan(video.ContentDetails?.Duration).ToString();
return(result);
}
