region Booking public void CheckOutBook int id try var bookExtraData m

#region Booking
        
        public void CheckOutBook(int id) {
            try {
                var bookExtraData = mapper.Map<BookExtraData, BookExtraDataDTO>(
                unitOfWork.BookExtraData.GetSingle(x =>
                    x.Book.Id == id)
                );
                if (bookExtraData == null)
                    throw new EntityNotFoundException();
                bookExtraData.InStock--;
                unitOfWork.BookExtraData.Update(
                    mapper.Map<BookExtraDataDTO, BookExtraData>(bookExtraData)
                );
                unitOfWork.Commit();
            } catch (EntityNotFoundException e) {
                throw new BookNotFoundException(e.Message, e);
            } catch (AmountOutOfRangeException e) {
                throw new AmountOutOfRangeException(e.Message, e);
            } 
        }

        public void ReturnBook(int id) {
            try {
                var bookExtraData = mapper.Map<BookExtraData, BookExtraDataDTO>(
                    unitOfWork.BookExtraData.GetSingle(x => 
                        x.Id == id)
                );
                if (bookExtraData == null)
                    throw new EntityNotFoundException();
                bookExtraData.InStock++;
                unitOfWork.BookExtraData.Update(
                    mapper.Map<BookExtraDataDTO, BookExtraData>(bookExtraData)
                );
                unitOfWork.Commit();
            } catch (EntityNotFoundException e) {
                throw new BookNotFoundException(e.Message, e);
            } catch (AmountOutOfRangeException e) {
                throw new AmountOutOfRangeException(e.Message, e);
            }
        }

#endregion