/// <summary>
/// Add book to Books collection property.
/// </summary>
/// <param name="book"></param>
public void AddBook(Book book)
{
if (Books.Contains(book))
{
logger.Warn($"Adding already existing book to list, book Isnb: {book.Isbn}");
throw new ArgumentException("This element is already exists.", nameof(book));
}
Books.Add(book);
}
public void TakeBook(Book book)
{
if (!Books.Contains(book))
{
Books.Add(book);
book.Take();
Console.WriteLine("Taken.");
}
else
{
Console.WriteLine("You have this book already. Choose another one or return it.");
}
}
private void CanRemove(Object parameter)
{
BookVM bookToRemove = parameter as BookVM;
return(bookToRemove != null && Books.Contains(bookToRemove));
}
public bool HasBook(Book book)
{
return(Books.Contains(book));
}
