private readonly ShoppingCart _shoppingCart; // The users shopping card
#endregion Fields
#region Constructors
public Midterm2()
{
_books = new List<Book>
{
new Book("Object Oriented Programming in C#", 45.5),
new Book("Web Programming in PHP", 24.9),
new Book("ASP.NET Web Application Development", 30.0),
new Book("Java Programming in 21 Days", 37.0),
new Book("Advanced Database Topics", 19.9)
};
// Make the options list
_bookOptions = new OptionsList();
_books.ForEach(book => _bookOptions.Add(book.Title));
// Instantiate the Shopping card
_shoppingCart = new ShoppingCart();
// Instantiate the console
_console = new ExtConsole("Algonquin College Online Book Store");
}
static void Main(string[] args)
{
Book[] books = availableBooks(); //get an array of books:
ShoppingCart shoppingCart = new ShoppingCart();
var complete = false;
do
{
Console.Write("\nEnter your book choice (0 - 4). Any other number completes the order: ");
var bookChoice = Convert.ToInt32(Console.ReadLine());
switch (bookChoice)
{
case 0:
case 1:
case 2:
case 3:
case 4:
// Enter number of copies
Console.Write("Enter number of copies: ");
var numCopies = Convert.ToInt32(Console.ReadLine());
// Add book to order and order to shopping cart
Book book = new Book(books[bookChoice].GetTitle(), books[bookChoice].GetPrice());
BookOrder order = new BookOrder(book, numCopies);
shoppingCart.AddBookOrder(order);
// Display confirmation
Console.WriteLine("\n" + numCopies + " copy of '" + book.GetTitle() +
" added to your shopping cart.");
// Tells the loop to ask for more books
complete = false;
break;
default:
// List book titles and number of copies in cart
System.Console.WriteLine("\nYou have placed the following books into your shopping cart:\n");
// Store total value of book order
double orderTotal = 0.0;
// Iterate through book orders, display the cart contents and calculate the total
foreach (BookOrder bookOrder in shoppingCart.GetBookOrders())
{
Console.WriteLine(" " + bookOrder.GetNumCopies() + " copy (copies) of '" + bookOrder.GetBook().GetTitle() + "'");
orderTotal += (bookOrder.GetBook().GetPrice()) * bookOrder.GetNumCopies();
}
// List total cost of all orders in cart
Console.WriteLine("\nThe total cost is $" + orderTotal);
// Save to file and exit
System.Console.WriteLine("\nYou shopping cart has been saved. Press return key to exit the application");
saveShoppingCart(shoppingCart);
// Marks the order as complete
complete = true;
break;
}
} while (!complete);
System.Console.ReadLine();
}
private static void saveShoppingCart(ShoppingCart shoppingCart)
{
FileStream fs = null;
StreamWriter sw = null;
try
{
if (!Directory.Exists(@"c:\BookStore"))
{
Directory.CreateDirectory(@"c:\BookStore");
}
// Delete the file if it exists -> basically overwrites file
if (File.Exists(@"C:\BookStore\ShoppingCart.txt"))
{
File.Delete(@"C:\BookStore\ShoppingCart.txt");
}
//Add your implementation to create a new file "c:\BookStore\ShoppingCart.txt" and save the shopping cart contents into the file.
fs = new FileStream(@"C:\BookStore\ShoppingCart.txt", FileMode.OpenOrCreate);
sw = new StreamWriter(fs);
try
{
foreach (BookOrder order in shoppingCart.GetBookOrders())
{
// Write the customer data to file
sw.WriteLine(order.GetBook().GetTitle());
sw.WriteLine(order.GetNumCopies());
}
}
finally
{
// Close stream writer
sw.Close();
}
}
catch (IOException ex)
{
Console.WriteLine("There was an error creating the directory.");
}
finally
{
// Close filestream
fs.Close();
}
}