static void GiveOut(int bookIndex, string clientName, Entities.Catalogue library)
{
if (bookIndex > library.catalogue.Count || bookIndex < 0)
{
throw new ArgumentOutOfRangeException("\n\nI can't give out the book. bookIndex is out of range of catalogue.");
}
Entities.Book book = library.catalogue[bookIndex];
if (book.Available == false)
{
throw new Exceptions.UnAvailableBookException("\n\nI can't give out the book. This book is given out!!!");
}
Entities.LibraryCard card = library.clientCards.Find(item => item.Reader.Name == clientName);
if (card == null)
{
throw new Exceptions.InexistentClientException("\n\nI can't give out the book. There is no such Client! ");
}
else
{
book.Available = false;
card.clientBookList.Add(book, DateTime.Today);
}
}
static void GetBack(int bookIndex, string clientName, Entities.Catalogue library)
{
if (bookIndex > library.catalogue.Count || bookIndex < 0)
{
throw new ArgumentOutOfRangeException("\n\nI can't take the book. bookIndex is out of range of catalogue.");
}
Entities.Book book = library.catalogue[bookIndex];
if (book.Available == true)
{
throw new Exceptions.UnAvailableBookException("\n\nI can't take the book. This book is available already!!!");
}
Entities.LibraryCard card = library.clientCards.Find(item => item.Reader.Name == clientName);
if (card == null)
{
throw new Exceptions.InexistentClientException("\n\nI can't take the book. There is no such Client! ");
}
else
{
book.Available = true;
Boolean rezult = card.clientBookList.Remove(book);
if (rezult == false)
{
throw new Exceptions.NoCardRecordException("\n\nI can't take the book. Client did not take the book!!!");
}
}
}