public CancelCustomerStatusCodes CancelCustomer(int customerNumber)
{
var customer = customerManager.GetCustomerByCustomerNumber(customerNumber);
if (customer == null)
{
return(CancelCustomerStatusCodes.NoSuchCustomer);
}
if (customer.IsGuardian == true)
{
return(CancelCustomerStatusCodes.CustomerIsGuardian);
}
if (customer.Debt > 0)
{
return(CancelCustomerStatusCodes.CustomerHasUnpaidDebt);
}
var borrow = borrowManager.GetAllCurrentBorrowFromCustomer(customerNumber);
if (borrow.Count > 0)
{
return(CancelCustomerStatusCodes.CustomerHasBorrowedBooks);
}
customerManager.CancelCustomer(customer.CustomerID);
return(CancelCustomerStatusCodes.Ok);
}
public AddBorrowStatusCodes AddBorrow(int customerNumber, string bookTitle)
{
var newBorrowDate = DateTime.Today;
var newReturnDate = DateTime.Today.AddDays(30);
var customer = customerManager.GetCustomerByCustomerNumber(customerNumber);
if (customer == null)
{
return(AddBorrowStatusCodes.NoSuchCustomer);
}
var book = bookManager.GetBookByBookTitle(bookTitle);
if (book == null)
{
return(AddBorrowStatusCodes.NoSuchBook);
}
var newBorrow = borrowManager.GetBorrowFromCustomerAndBook(customerNumber, bookTitle);
if (book.IsBorrowed == true)
{
if (newBorrow != null && customer.Debt == 0)
{
borrowManager.ExtendBorrowDate(newBorrow.BorrowID, newBorrowDate, newReturnDate);
borrowManager.AddToHistoryListOfBorrow(customerNumber, bookTitle, newBorrowDate);
return(AddBorrowStatusCodes.ExtendBorrowForCustomer);
}
else if (newBorrow != null && customer.Debt > 0)
{
return(AddBorrowStatusCodes.CustomerHasDebtCanNotExtendBorrow);
}
return(AddBorrowStatusCodes.BookIsUnavailable);
}
if (borrowManager.GetAllCurrentBorrowFromCustomer(customerNumber).Count >= 5)
{
return(AddBorrowStatusCodes.CustomerCanNotExceedMaxBookQuantity);
}
if (customer.Debt > 0)
{
return(AddBorrowStatusCodes.CustomerHasDebt);
}
borrowManager.AddBorrow(customerNumber, bookTitle, newBorrowDate, newReturnDate);
borrowManager.AddBorrowToBook(bookTitle, true, newBorrow);
borrowManager.AddToHistoryListOfBorrow(customerNumber, bookTitle, newBorrowDate);
return(AddBorrowStatusCodes.Ok);
}