/// <summary>
/// Processes a return request given a receipt.
/// </summary>
/// <param name="receiptID"></param>
/// <param name="itemID"></param>
/// <param name="itemAmount"></param>
public void ProcessReturn(int receiptID, int itemID, int itemAmount)
{
status = State.Return;
if (receiptID > TransactionDB.GetTransactionInt() || receiptID < 0)
{
throw new Exception();
}
Transaction receipt = TransactionDB.GetTransaction(receiptID);
for (int i = 0; i < receipt.GetItems.Count; i++)
{
List <Tuple <Product, int> > temp = receipt.GetItems;
if (temp[i].Item1.ID == itemID)
{
if (itemAmount > temp[i].Item2)
{
returnval = "Error. Cannot return more items than purchased.";
update(returnval, status);
return;
}
else
{
temp[i] = new Tuple <Product, int>(temp[i].Item1, temp[i].Item2 - itemAmount);
returnval = "Success! Items returned.";
update(returnval, status);
return;
}
}
}
returnval = "Error. Item Not Found.";
update(returnval, status);
}
/// <summary>
/// Adds a Transaction to the Rebate DataBase.
/// </summary>
/// <param name="Date"></param>
/// <param name="ID"></param>
public void AddToRebateList(DateTime Date, int ID)
{
status = State.Rebate;
if ((ID) <= 0 || (ID--) >= TransactionDB.GetTransactionInt())
{
update("Transaction ID does not exist.", status);
}
else
{
Transaction temp = TransactionDB.GetTransaction(ID);
returnval = RebateDB.AddRebateToList(temp, Date);
update(returnval, status);
}
}