public async Task <Reservation> AddReservation(Reservation reservation)
{
var book = await _bookProvider.GetBook(reservation.BookId);
if (book.Stock <= 0)
{
throw new Exception("Book not in stock");
}
book.Stock -= 1;
var res = await _reservationProvider.AddReservation(reservation);
await _bookProvider.EditBook(book);
return(res);
}
public async Task <Book> GetBook(int id)
{
return(await _bookProvider.GetBook(id));
}
