public bool BorrowBook(string code, string client, DateTime date)
{
try
{
if (!authenticated)
{
throw new FaultException <NotAuthenticatedException>(new NotAuthenticatedException($"Restricted Area"));
}
using (var cli = new LibraryManagerClient())
{
cli.Open();
var book = cli.GetBooksByCode(code);
if (book == null)
{
throw new FaultException <BookNotFoundException>(new BookNotFoundException($"Book Code {code} Not Found"),
new FaultReason($"Book Code {code} Not Found"));
}
lock (locker)
{
if (book.IsBorrowed)
{
throw new FaultException <BookBorrowedException>(new BookBorrowedException($"Book Code {code} already borrowed"),
new FaultReason($"Book Code {code} already borrowed"));
}
var loans = cli.GetLoansFromClient(client);
if (loans.Count == MAX_BOOKS_ALLOWED)
{
throw new FaultException <MaximumExceededException>(new MaximumExceededException($"You cannot borrow more than {MAX_BOOKS_ALLOWED} books"),
new FaultReason($"You cannot borrow more than {MAX_BOOKS_ALLOWED} books"));
}
cli.UpdateToBorrowed(book.Id, client, date);
}
cli.Close();
}
return(true);
}
catch { throw; }
}
public bool ReturnBook(string code, string client, DateTime date)
{
try {
if (!authenticated)
{
throw new FaultException <NotAuthenticatedException>(new NotAuthenticatedException($"Restricted Area"));
}
using (var cli = new LibraryManagerClient())
{
cli.Open();
var book = cli.GetBooksByCode(code);
if (book == null)
{
throw new FaultException <BookNotFoundException>(new BookNotFoundException($"Book Code {code} Not Found"));
}
if (!book.IsBorrowed)
{
throw new FaultException <BookReturnedException>(new BookReturnedException($"Book Code {code} already returned"));
}
var loan = cli.GetLoan(book.Id);
var delay = date - loan.LoanDate;
if (delay.Days > MAX_DAYS_ALLOWED)
{
throw new FaultException <FineException>(new FineException($"Fine of $ {(delay.Days - MAX_DAYS_ALLOWED) * FINE }"));
}
cli.UpdateToAvaible(book.Id, client, date);
cli.Close();
}
return(true);
}
catch { throw; }
}
