protected override object Convert(object value, Type targetType, object parameter)
{
if (!(value is long id))
{
return(Binding.DoNothing);
}
if (id == 0)
{
return("[UNKNOWN]");
}
//var bk = value as Book;
//if (bk == null) return Binding.DoNothing;
var to = Takeout.GetById(id);
if (to == null)
{
return("[UNKNOWN]");
}
var borrower = Borrower.GetById(to.BorrowerId);
if (borrower == null)
{
return("[UNKNOWN]");
}
return(borrower.Fullname.ToUpper());
}
protected override object Convert(object value, Type targetType, object parameter)
{
var id = (long)value;
var n = Borrower.GetById(id)?.Fullname;
if (UpperCase)
{
n = n?.ToUpper();
}
return(n);
}
private void CheckExpiration()
{
if (_checking)
{
return;
}
_checking = true;
var expired = Takeout.Cache.Where(x => !x.IsReturned && IsExpired(x.TakeoutDate)).ToList();
foreach (var takeout in expired)
{
var notification = Notification.Cache.FirstOrDefault(x =>
x.NotificationType == Notification.NotificationTypes.TakeoutExpired &&
x.RecordId == takeout.Id);
if (notification != null)
{
continue;
}
var borrower = Borrower.GetById(takeout.BorrowerId);
var book = Book.GetById(takeout.BookId);
notification = new Notification()
{
Thumbnail = book.Thumbnail,
RecordId = takeout.Id,
NotificationType = Notification.NotificationTypes.TakeoutExpired,
Title = "BOOK NOT RETURNED",
Message = $"{borrower.Fullname} did not return the book {book.Title} borrowed last {takeout.TakeoutDate.ToShortDateString()}."
};
App.Current.Dispatcher.Invoke(() => notification.Save());
Messages.Enqueue(notification);
Resources.chime_glass_note_hi.Play();
}
_checking = false;
}