/// <summary>
/// Updates this form according to the current CustomerServiceState.
/// </summary>
public void update()
{
CustomerServiceState state = csm.GetCurrentState();
switch (state)
{
case CustomerServiceState.Initial:
MessageBox.Show("Return has begun.");
break;
case CustomerServiceState.InvalidID:
MessageBox.Show(csm.Error);
break;
case CustomerServiceState.SuccessfulID:
updateItems();
break;
case CustomerServiceState.SuccessfulReturn:
Receipt r = new Receipt(csm.GetCurrentSale());
r.Show();
updateItems();
break;
default:
break;
}
}
/// <summary>
/// Find the sale corresponding with the saleID.
/// </summary>
/// <param name="saleID">The saleID corresponding with the Sale we want to work on</param>
public void GetSale(int saleID)
{
currentSale = sd.GetSale(saleID);
if (currentSale != null)
{
state = CustomerServiceState.SuccessfulID;
}
else
{
this.Error = "Invalid Sale ID.";
state = CustomerServiceState.InvalidID;
}
}
/// <summary>
/// Used to return items
/// </summary>
public void ReturnItem()
{
CustomerServiceState state = _csm.GetCurrentState();
string[] returnItem = null;
bool valid = false;
int ID = 0;
while (!valid)
{
Console.Write("Enter the Sales ID: ");
valid = int.TryParse(Console.ReadLine(), out ID);
}
Sale currentSale;
List <Item> items = null;
while (state != CustomerServiceState.SuccessfulReturn)
{
switch (state)
{
case CustomerServiceState.Initial:
_gsHan(ID);
state = _csm.GetCurrentState();
break;
case CustomerServiceState.InvalidID:
Console.WriteLine("Invalid ID");
Console.Write("\nEnter the Sales ID: ");
ID = Convert.ToInt32(Console.ReadLine());
state = _csm.GetCurrentState();
break;
case CustomerServiceState.SuccessfulID:
currentSale = _csm.GetCurrentSale();
items = currentSale.GetItems();
Console.Write("\nName\tQuantity\tPrice");
foreach (Item i in items)
{
Console.Write("\n{0}\t{1}\t\t{2}", i.Name, i.Quantity, i.Price.ToString("C"));
}
Console.Write("\nEnter the item and quantity to return seperated by a comma(,): ");
returnItem = Console.ReadLine().Split(',');
foreach (Item i in items)
{
if (i.Name.Equals(returnItem[0]))
{
int quantity = 0;
int.TryParse(returnItem[1], out quantity);
_riHan(returnItem[0], quantity);
break;
}
}
state = _csm.GetCurrentState();
break;
default:
break;
}
}
Console.Write("\nName\tQuantity\tPrice");
foreach (Item i in items)
{
Console.Write("\n{0}\t{1}\t\t{2}", i.Name, i.Quantity, i.Price.ToString("C"));
}
Console.WriteLine("\nReturn successful.\n");
}
/// <summary>
/// Returns an item from a sale.
/// </summary>
/// <param name="item">The item to be returned from the sale.</param>
/// <param name="qty">The amount of the item to be returned.</param>
public void ReturnItem(string item, int qty)
{
currentSale.ReturnItem(item, qty);
state = CustomerServiceState.SuccessfulReturn;
}
/// <summary>
/// The constructor for the CustomerServiceModel.
/// </summary>
/// <param name="sd">The current working SalesDatabase.</param>
public CustomerServiceModel(SalesDatabase sd)
{
this.sd = sd;
state = CustomerServiceState.Initial;
}
