public void addBonusBook(BookCard book)
{
if (!bonusBooks.Contains(book) || book.Book is PaperBook)
{
bonusBooks.Add(book);
}
}
public void AddToCart(BookCard book)
{
if (!booksInCart.Contains(book) || book.Book is PaperBook)
{
booksInCart.Add(book);
bookRange.deleteBook(book);
}
}
public void deleteBook(BookCard bookCard)
{
if (bookCard.Book is PaperBook)
{
if (bookList.Contains(bookCard))
{
int id = bookList.IndexOf(bookCard);
if (bookList[id].CountPaperUnits > 1)
{
bookList[id].CountPaperUnits -= 1;
}
else if (bookList[id].CountPaperUnits == 1)
{
bookList.Remove(bookCard);
booksCount--;
}
else
{
throw new Exception();
}
}
}
}
public void AddBooks(params IBook[] books)
{
foreach (IBook book in books)
{
if (book is PaperBook)
{
BookCard bc = new BookCard(book, false, 1);
if (bookList.Contains(bc))
{
bookList[bookList.IndexOf(bc)].CountPaperUnits += 1;
}
else
{
bookList.Add(bc);
booksCount++;
}
}
else if (book is EBook)
{
BookCard bc = new BookCard(book, true, 0);
if (bookList.Contains(bc))
{
EBook ebook = (EBook)bookList[bookList.IndexOf(bc)].Book;
foreach (Format format in ((EBook)book).getFormats())
{
ebook.addFormat(format);
}
}
else
{
bookList.Add(bc);
booksCount++;
}
}
}
}