/// <summary>This method grabs all unread webmails, and creates/modifies/deletes alerts for the providers and linked users the webmails are addressed to.</summary>
public static void CreateAlertsForNewWebmail(Logger.IWriteLine log)
{
//This method first collect all unread webmails, and counts how many each provider has.
//It then fetches all WebMailRecieved alerts, and will create/modify alerts for each provider who was counted before.
//Finally, it will sync the alerts in the database with the ones we created.
//If the user has unread webmail and an existing alert, it is modified.
//If the user has unread webmail and no existing alert, an alert is created.
//If the user has no unread webmail and an existing alert, it will be deleted.
//Key: ProvNum, Value: Number of unread webmails
Dictionary <long, long> dictRecievedCount = EmailMessages.GetProvUnreadWebMailCount();
log.WriteLine("Collected Webmails for the following providers (ProvNum: # Webmails): "
+ String.Join(", ", dictRecievedCount.Select(x => POut.Long(x.Key) + ":" + POut.Long(x.Value))), LogLevel.Verbose);
//This list contains every single WebMailRecieved alert and is synced with listAlerts later.
List <AlertItem> listOldAlerts = AlertItems.RefreshForType(AlertType.WebMailRecieved);
log.WriteLine("Fetched current alerts for users: " + String.Join(", ", listOldAlerts.Select(x => POut.Long(x.UserNum))), LogLevel.Verbose);
//If a user doesn't have any unread webmail, they won't be placed on this list, and any alert they have in listOldAlerts will be deleted.
List <AlertItem> listAlerts = new List <AlertItem>();
List <long> listChangedAlertItemNums = new List <long>();
//Go through each provider value, and create/update alerts for each patnum under that provider.
//There will only be a value if they have atleast 1 unread webmail.
foreach (KeyValuePair <long, long> kvp in dictRecievedCount)
{
List <Userod> listUsers = Providers.GetAttachedUsers(kvp.Key);
//Go through each usernum and create/update their alert item.
foreach (long usernum in listUsers.Select(x => x.UserNum))
{
AlertItem alertForUser = listOldAlerts.FirstOrDefault(x => x.UserNum == usernum);
//If an alert doesn't exist for the user, we'll create it.
if (alertForUser == null)
{
alertForUser = new AlertItem();
alertForUser.Type = AlertType.WebMailRecieved;
alertForUser.FormToOpen = FormType.FormEmailInbox;
alertForUser.Actions = ActionType.MarkAsRead | ActionType.OpenForm; //Removed delete because the alert will just be re-added next time it checks.
alertForUser.Severity = SeverityType.Normal;
alertForUser.ClinicNum = -1; //The alert is user dependent, not clinic dependent.
alertForUser.UserNum = usernum;
alertForUser.Description = POut.Long(kvp.Value);
listAlerts.Add(alertForUser);
log.WriteLine("Created webmail alert for user " + POut.Long(usernum), LogLevel.Verbose);
}
else
{
//If the alert already exists, we'll be updating it and usually mark it as unread.
AlertItem selectedAlert = alertForUser.Copy();
long previousValue = PIn.Long(selectedAlert.Description);
//We only need to modify the alert if the amount of unread webmails changed.
if (previousValue != kvp.Value)
{
selectedAlert.Description = POut.Long(kvp.Value);
//If the new value is greater, the user has recieved more webmails so we want to mark the alert as "Unread".
if (previousValue < kvp.Value)
{
listChangedAlertItemNums.Add(selectedAlert.AlertItemNum);
}
}
listAlerts.Add(selectedAlert);
log.WriteLine("Modified webmail alert for user " + POut.Long(usernum), LogLevel.Verbose);
}
}
}
//Push our changes to the database.
AlertItems.Sync(listAlerts, listOldAlerts);
List <AlertItem> listDeletedAlerts = listOldAlerts.Where(x => !listAlerts.Any(y => y.AlertItemNum == x.AlertItemNum)).ToList();
log.WriteLine("Deleted webmail alerts for users: " + String.Join(", ", listDeletedAlerts.Select(x => POut.Long(x.UserNum))), LogLevel.Verbose);
//Make sure to mark alerts that were deleted, modified (not created) and increased as unread.
listChangedAlertItemNums.AddRange(listDeletedAlerts.Select(x => x.AlertItemNum));
AlertReads.DeleteForAlertItems(listChangedAlertItemNums);
}