/// <summary>
/// Determines if the specified user is eligible for this gratuity. Cached for a session.
/// </summary>
/// <param name="szUser">The username</param>
/// <param name="gt">The type of gratuity</param>
/// <returns>True if they have spent (net of refunds) the required amount within the required window</returns>
public static bool UserQualifies(string szUser, Gratuity.GratuityTypes gt)
{
Boolean f = false;
string szSessionKey = SessionKeyForUser(szUser, gt);
System.Web.SessionState.HttpSessionState sess = ((HttpContext.Current != null) ? HttpContext.Current.Session : null);
if (sess != null)
{
object o = sess[szSessionKey];
if (o != null)
{
return(Convert.ToBoolean(o, CultureInfo.InvariantCulture));
}
}
List <EarnedGrauity> lst = EarnedGrauity.GratuitiesForUser(szUser, gt);
if (lst.Count == 0)
{
f = false;
}
else
{
f = lst[0].ExpirationDate.CompareTo(DateTime.Now) > 0;
}
if (sess != null)
{
sess[szSessionKey] = f.ToString();
}
return(f);
}
/// <summary>
/// Update earned gratuities for users to ensure that the expiration dates, etc., are correct.
/// </summary>
/// <param name="szUser">The user for whom gratuities should be updated; null or empty for all users</param>
/// <param name="fResetReminders">True to reset reminders to 0 (i.e., no reminders sent)</param>
public static void UpdateEarnedGratuities(string szUser, bool fResetReminders)
{
if (String.IsNullOrEmpty(szUser))
{
return;
}
Dictionary <string, Collection <Payment> > dictPayments = PaymentListsForUser(szUser);
ReadOnlyCollection <Gratuity> lstKnownGratuities = Gratuity.KnownGratuities;
List <EarnedGrauity> lstUpdatedGratuityList = new List <EarnedGrauity>();
ResetSessionForGratuities(szUser);
// Go through each user's payment history (could be just the one user) and determine their gratuities.
foreach (string szKey in dictPayments.Keys)
{
List <Payment> lstPayments = new List <Payment>(dictPayments[szKey]);
CompressPaymentsForUser(lstPayments);
// OK, payments should be compacted - go through them and apply the gratuities
foreach (Payment p in lstPayments)
{
// Now process the payment:
// Enumerate each known gratuity and, if this qualifies for the gratuity, create/extend the gratuity.
foreach (Gratuity g in lstKnownGratuities)
{
// see if this payment + priors qualifies
if (Payment.PaymentsInDateRange(p.Timestamp.Subtract(g.Window).Date, p.Timestamp.Date, lstPayments) >= g.Threshold)
{
// Find the existing gratuity, if any, for the user
// Add it to the list to update if we either have a new one, or if we have extended the epxiration
EarnedGrauity eg = lstUpdatedGratuityList.Find(eg2 => (eg2.GratuityType == g.GratuityType && eg2.Username == p.Username));
if (eg == null)
{
eg = new EarnedGrauity(g, p);
lstUpdatedGratuityList.Add(eg);
}
else
{
eg.ExtendExpiration(p, fResetReminders); // don't extend expiration for new earned gratuities; correct date is already set above.
}
eg.EarnedDate = p.Timestamp.LaterDate(eg.EarnedDate);
g.GratuityWasEarned(eg); // take any action that is appropriate for the gratuity now that it is earned.
}
}
}
}
// We now have a list of gratuities that should be correct
List <EarnedGrauity> lstExistingEarnedGratuities = EarnedGrauity.GratuitiesForUser(szUser, Gratuity.GratuityTypes.Unknown);
foreach (EarnedGrauity eg in lstUpdatedGratuityList)
{
// if this exists as an existing earned gratuity, update the expiration date on that one and save it OR if reseting
EarnedGrauity egExisting = lstExistingEarnedGratuities.Find(eg2 => (eg2.GratuityType == eg.GratuityType && eg2.Username == eg.Username));
if (egExisting == null) // not found - this one is new
{
eg.Commit();
}
else
{
int prevReminderCount = egExisting.ReminderCount;
if (fResetReminders)
{
egExisting.ReminderCount = 0;
}
egExisting.ExpirationDate = eg.ExpirationDate;
// Only save to database if expiration date or reminders changed
if (eg.ReminderCount != egExisting.ReminderCount || egExisting.ReminderCount != prevReminderCount || eg.ExpirationDate.CompareTo(egExisting.ExpirationDate) != 0 || eg.EarnedDate.CompareTo(egExisting.EarnedDate) != 0)
{
egExisting.Commit();
}
lstExistingEarnedGratuities.Remove(egExisting);
}
}
// Anything that is left is no longer found (e.g., if a payment was deleted)
// Shouldn't happen, but clean up just in case
foreach (EarnedGrauity eg in lstExistingEarnedGratuities)
{
eg.Delete();
}
}
