public Offer Responce(BookRequest request)
{
Client client = request.GetClient();
Book book = request.GetBook();
if (client.Balance < book.DepositCost)
{
throw new Exception("Not enough money");
}
if (Archive.Books[book.Isbn] == null || Archive.Amounts[book.Isbn] == 0)
{
throw new Exception("No such a book");
}
Offer responce = new Offer(client, book);
return(responce);
}
public static void AddRequest(BookRequest request)
{
requests.Add(request);
}
public void AddRequest(BookRequest request)
{
requests.Add(request.Id);
}