public async Task HandleUpdateAsync(CancellationToken cancellationToken)
{
var feeds = await _podcastDbContext.Feeds.Include(x => x.Show !.Episodes).ToListAsync(cancellationToken);
foreach (var feed in feeds)
{
_logger.LogInformation("Updating feed: {url}", feed.Url);
try
{
var show = await _feedClient.GetShowAsync(feed, cancellationToken);
if (!show.Episodes.Any())
{
continue;
}
if (feed.Show == null)
{
feed.Show = show;
}
else
{
var newEpisodes = GetNewEpisodes(feed.Show.Episodes, show.Episodes);
newEpisodes.ToList().ForEach(episode => feed.Show.Episodes.Add(episode));
}
await _podcastDbContext.SaveChangesAsync(cancellationToken);
}
catch (Exception ex)
{
_logger.LogError("Error updating feed: {error}", ex.Message);
}
}
}
public async Task HandleIngestionAsync(string title, string url, IReadOnlyCollection <string> feedCategories,
CancellationToken stoppingToken)
{
var isAcceptedTopic = AcceptedTopics.Any(topic => title.Contains(topic, StringComparison.InvariantCultureIgnoreCase));
if (!isAcceptedTopic)
{
return;
}
var isExistingShow = await _podcastDbContext.Shows.AnyAsync(show => show.Title == title, stoppingToken);
if (isExistingShow)
{
return;
}
var feed = new Feed(Guid.NewGuid(), url);
var categories = await _podcastDbContext.Categories
.Where(category => feedCategories.Any(feedCategory => feedCategory == category.Genre))
.ToListAsync(stoppingToken);
foreach (var category in categories)
{
feed.Categories.Add(new FeedCategory(category.Id, feed.Id));
}
try
{
var show = await _feedClient.GetShowAsync(feed, stoppingToken);
feed.Show = show;
}
catch (Exception ex)
{
_logger.LogError("Error adding feed: {error}", ex.Message);
}
await _podcastDbContext.Feeds.AddAsync(feed, stoppingToken);
await _podcastDbContext.SaveChangesAsync(stoppingToken);
}