private string Unsubscribe(User user, Show show)
{
string response;
using (AppDbContext db = new AppDbContext())
{
Subscription subscription;
Program.Logger.Debug($"{GetType().Name}: Checking for subscription existence");
try
{
subscription = db.Subscriptions.FirstOrDefault(s => s.User.Id == user.Id && s.Show.Id == show.Id);
}
catch (Exception e)
{
throw new Exception($"{GetType().Name}: An error occurred while checking for subscription existence", e);
}
if (subscription != null)
{
Program.Logger.Debug($"{GetType().Name}: Deleting notifications for subscription");
try
{
db.Notifications.RemoveRange(db.Notifications.Where(n => n.Subscription.Id == subscription.Id));
}
catch (Exception e)
{
throw new Exception($"{GetType().Name}: An error occurred while deleting notifications for subscription", e);
}
Program.Logger.Debug($"{GetType().Name}: Deleting subscription");
try
{
db.Subscriptions.Remove(subscription);
}
catch (Exception e)
{
throw new Exception($"{GetType().Name}: An error occurred while deleting subscription", e);
}
try
{
db.SaveChanges();
}
catch (Exception e)
{
throw new Exception($"{GetType().Name}: An error occurred while saving changes to database", e);
}
response = $"Вы отписались от сериала \"{show.Title}\"";
}
else
{
response = $"Вы, братишка, не подписаны на сериал \"{show.Title}\"";
}
}
return response;
}
private string LoadShowDescription(Show show)
{
string u = $"{Url}{ShowPageUrl}{show.SiteId}";
var doc = DownloadDocument(u).Result;
string descriptionText = doc.DocumentNode.SelectNodes("//div[@id='MainDiv']//div[@id='Onwrapper']//div[@class='mid']//div//h1").First().ParentNode.InnerText.Trim();
if (string.IsNullOrEmpty(descriptionText))
{
return string.Empty;
}
var descriptionParts =
descriptionText.Replace("\r", string.Empty)
.Replace("\t", string.Empty)
.Split(new[] { '\n' }, StringSplitOptions.RemoveEmptyEntries)
.ToList();
return WebUtility.HtmlDecode(descriptionParts.GetRange(1, descriptionParts.Count - 1).Aggregate(string.Empty, (s, s1) => s + s1 + "\n"));
}
private static void Subscribe(AppDbContext db, User user, Show show, bool newUser)
{
Subscription subscription = new Subscription
{
User = user,
Show = show,
SubscriptionDate = DateTimeOffset.Now
};
if (newUser)
{
user.Subscriptions.Add(subscription);
db.Users.Add(user);
}
else
{
db.Subscriptions.Add(subscription);
}
}
