public int EditBook(int id, Book book)
{
var bookIndex = _allBooks.FindIndex(x => x.Id == id);
var genreRepository = new GenreRepository();
book.Genre = genreRepository.Get(book.GenreId);
_allBooks[bookIndex] = book;
return(book.Id);
}
public int AddBook(Book book)
{
var maxId = _allBooks.Select(x => x.Id).Max();
book.Id = maxId + 1;
var genreRepository = new GenreRepository();
book.Genre = genreRepository.Get(book.GenreId);
_allBooks.Add(book);
return(book.Id);
}