bool Teacher::returnBook(Book &book)
{
if (book.getReader() != this)
return false;
if (!book.isLentOut())
return false;
book.returnIn();
book.setRenewStatus(false);
if(book.getReserveStatus())
book.setReservedDate(System::getCurrentDate());
if(book.getBorrowedDate().getNumber() + System::getBorrowedBookExpiredDays() <= System::getCurrentDate().getNumber())
setPenaltyBefore(getPenaltyBefore() + 1 + System::getCurrentDate().getNumber() - book.getBorrowedDate().getNumber() - System::getBorrowedBookExpiredDays());
return true;
}
