public UserSubscription AddNewFeed(string feedUrl, User user)
{
var feedHashCode = feedUrl.GetHashCode();
var subscription = _dbContext.Subscriptions.SingleOrDefault(x => x.Hash == feedHashCode);
if (subscription == null)
{
subscription = AddSubscription(feedUrl, user);
}
else
{
var alreadySubscribed = subscription.UserSubscriptions.Any(x => x.User.Email == user.Email);
if (alreadySubscribed)
{
throw new BralekTechnicalException("ALREADY_SUBSCRIBED", null);
}
}
var userSubscription = new UserSubscription
{
AddedOnUTC = DateTime.UtcNow,
Subscription = subscription,
UpdatedOnUTC = DateTime.UtcNow,
User = user,
UnreadItems = subscription.SubscriptionPosts.Count()
};
_dbContext.UserSubscriptions.Add(userSubscription);
_dbContext.SaveChanges();
return userSubscription;
}
public void ImportOpml(Stream opmlFile, string userEmail)
{
var user = _dbContext.Users.Single(x => x.Email == userEmail);
using (var textReader = new XmlTextReader(opmlFile))
{
const string rss = "rss";
var xs = new XmlSerializer(typeof(Opml));
var opmlData = (Opml)xs.Deserialize(textReader);
foreach (var outline in opmlData.Body.Outline.Where(x => x.Type == rss))
{
var xmlUrlHash = outline.XmlUrl.GetHashCode();
var subscription = _dbContext.Subscriptions.SingleOrDefault(x => x.Hash == xmlUrlHash);
if (subscription == null)
{
subscription = new Subscription
{
FeedUrl = outline.XmlUrl,
Hash = xmlUrlHash,
SiteUrl = outline.HtmlUrl,
AddedBy = user,
AddedOnUTC = DateTime.UtcNow,
Title = outline.Title,
};
_dbContext.Subscriptions.Add(subscription);
}
var userSubscription = new UserSubscription
{
Subscription = subscription,
User = user,
AddedOnUTC = DateTime.UtcNow,
UpdatedOnUTC = DateTime.UtcNow
};
_dbContext.UserSubscriptions.Add(userSubscription);
}
_dbContext.SaveChanges();
}
}
