/// <summary>
/// Matches outlook and Google appointment by a) id b) properties.
/// </summary>
/// <param name="sync">Syncronizer instance</param>
/// <returns>Returns a list of match pairs (outlook appointment + Google appointment) for all appointment. Those that weren't matche will have it's peer set to null</returns>
public static List <AppointmentMatch> MatchAppointments(AppointmentsSynchronizer sync)
{
Logger.Log("Matching Outlook and Google appointments...", EventType.Information);
var result = new List <AppointmentMatch>();
var googleAppointmentExceptions = new List <Event>();
//for each outlook appointment try to get Google appointment id from user properties
//if no match - try to match by properties
//if no match - create a new match pair without Google appointment.
//foreach (Outlook._AppointmentItem olc in outlookAppointments)
var OutlookAppointmentsWithoutSyncId = new Collection <Outlook.AppointmentItem>();
#region Match first all outlookAppointments by sync id
for (int i = 1; i <= sync.OutlookAppointments.Count; i++)
{
Outlook.AppointmentItem ola = null;
try
{
ola = sync.OutlookAppointments[i] as Outlook.AppointmentItem;
if (ola == null || string.IsNullOrEmpty(ola.Subject) && ola.Start == AppointmentSync.outlookDateMin)
{
Logger.Log("Empty Outlook appointment found. Skipping", EventType.Warning);
sync.SkippedCount++;
sync.SkippedCountNotMatches++;
continue;
}
else if (ola.MeetingStatus == Outlook.OlMeetingStatus.olMeetingCanceled || ola.MeetingStatus == Outlook.OlMeetingStatus.olMeetingReceivedAndCanceled)
{
Logger.Log("Skipping Outlook appointment found because it is cancelled: " + ola.Subject + " - " + ola.Start, EventType.Debug);
//sync.SkippedCount++;
//sync.SkippedCountNotMatches++;
continue;
}
else if (AppointmentsSynchronizer.TimeMin != null &&
(ola.IsRecurring && ola.GetRecurrencePattern().PatternEndDate < AppointmentsSynchronizer.TimeMin ||
!ola.IsRecurring && ola.End < AppointmentsSynchronizer.TimeMin) ||
AppointmentsSynchronizer.TimeMax != null &&
(ola.IsRecurring && ola.GetRecurrencePattern().PatternStartDate > AppointmentsSynchronizer.TimeMax ||
!ola.IsRecurring && ola.Start > AppointmentsSynchronizer.TimeMax))
{
Logger.Log("Skipping Outlook appointment because it is out of months range to sync:" + ola.Subject + " - " + ola.Start, EventType.Debug);
continue;
}
}
catch (Exception ex)
{
//this is needed because some appointments throw exceptions
if (ola != null && !string.IsNullOrEmpty(ola.Subject))
{
Logger.Log("Accessing Outlook appointment: " + ola.Subject + " threw and exception. Skipping: " + ex.Message, EventType.Warning);
}
else
{
Logger.Log("Accessing Outlook appointment threw and exception. Skipping: " + ex.Message, EventType.Warning);
}
sync.SkippedCount++;
sync.SkippedCountNotMatches++;
continue;
}
NotificationReceived?.Invoke(string.Format("Matching appointment {0} of {1} by id: {2} ...", i, sync.OutlookAppointments.Count, ola.Subject));
// Create our own info object to go into collections/lists, so we can free the Outlook objects and not run out of resources / exceed policy limits.
//OutlookAppointmentInfo olci = new OutlookAppointmentInfo(ola, sync);
//try to match this appointment to one of Google appointments
var gid = AppointmentPropertiesUtils.GetOutlookGoogleAppointmentId(sync, ola);
if (gid != null)
{
var e = sync.GetGoogleAppointmentById(gid);
var match = new AppointmentMatch(ola, null);
if (e != null && !e.Status.Equals("cancelled"))
{
//we found a match by google id, that is not deleted or cancelled yet
match.AddGoogleAppointment(e);
result.Add(match);
sync.GoogleAppointments.Remove(e);
}
else
{
OutlookAppointmentsWithoutSyncId.Add(ola);
}
}
else
{
OutlookAppointmentsWithoutSyncId.Add(ola);
}
}
#endregion
#region Match the remaining appointments by properties
for (int i = 0; i < OutlookAppointmentsWithoutSyncId.Count; i++)
{
var ola = OutlookAppointmentsWithoutSyncId[i];
NotificationReceived?.Invoke(string.Format("Matching appointment {0} of {1} by unique properties: {2} ...", i + 1, OutlookAppointmentsWithoutSyncId.Count, ola.Subject));
//no match found by id => match by subject/title
//create a default match pair with just outlook appointment.
var match = new AppointmentMatch(ola, null);
//foreach Google appointment try to match and create a match pair if found some match(es)
for (int j = sync.GoogleAppointments.Count - 1; j >= 0; j--)
{
var e = sync.GoogleAppointments[j];
// only match if there is a appointment targetBody, else
// a matching Google appointment will be created at each sync
if (!e.Status.Equals("cancelled") && ola.Subject == e.Summary && e.Start.DateTime != null && ola.Start == e.Start.DateTime)
{
match.AddGoogleAppointment(e);
sync.GoogleAppointments.Remove(e);
}
}
if (match.GoogleAppointment == null)
{
Logger.Log(string.Format("No match found for outlook appointment ({0}) => {1}", match.OutlookAppointment.Subject + " - " + match.OutlookAppointment.Start, (AppointmentPropertiesUtils.GetOutlookGoogleAppointmentId(sync, match.OutlookAppointment) != null ? "Delete from Outlook" : "Add to Google")), EventType.Information);
}
result.Add(match);
}
#endregion
//for each Google appointment that's left (they will be nonmatched) create a new match pair without outlook appointment.
for (int i = 0; i < sync.GoogleAppointments.Count; i++)
{
var googleAppointment = sync.GoogleAppointments[i];
NotificationReceived?.Invoke(string.Format("Adding new Google appointment {0} of {1} by unique properties: {2} ...", i + 1, sync.GoogleAppointments.Count, googleAppointment.Summary));
if (googleAppointment.RecurringEventId != null)
{
sync.SkippedCountNotMatches++;
googleAppointmentExceptions.Add(googleAppointment);
}
else if (googleAppointment.Status.Equals("cancelled"))
{
Logger.Log("Skipping Google appointment found because it is cancelled: " + googleAppointment.Summary + " - " + AppointmentsSynchronizer.GetTime(googleAppointment), EventType.Debug);
//sync.SkippedCount++;
//sync.SkippedCountNotMatches++;
}
else if (string.IsNullOrEmpty(googleAppointment.Summary) && (googleAppointment.Start == null || googleAppointment.Start.DateTime == null && googleAppointment.Start.Date == null))
{
// no title or time
sync.SkippedCount++;
sync.SkippedCountNotMatches++;
Logger.Log("Skipped GoogleAppointment because no unique property found (Subject or StartDate):" + googleAppointment.Summary + " - " + AppointmentsSynchronizer.GetTime(googleAppointment), EventType.Warning);
}
else
{
Logger.Log(string.Format("No match found for Google appointment ({0}) => {1}", googleAppointment.Summary + " - " + AppointmentsSynchronizer.GetTime(googleAppointment), (!string.IsNullOrEmpty(AppointmentPropertiesUtils.GetGoogleOutlookAppointmentId(sync.SyncProfile, googleAppointment)) ? "Delete from Google" : "Add to Outlook")), EventType.Information);
var match = new AppointmentMatch(null, googleAppointment);
result.Add(match);
}
}
//for each Google appointment exception, assign to proper match
for (int i = 0; i < googleAppointmentExceptions.Count; i++)
{
var e = googleAppointmentExceptions[i];
NotificationReceived?.Invoke(string.Format("Adding Google appointment exception {0} of {1} : {2} ...", i + 1, googleAppointmentExceptions.Count, e.Summary + " - " + AppointmentsSynchronizer.GetTime(e)));
//Search for original recurrent event in matches
bool found = false;
foreach (var m in result)
{
if (m.GoogleAppointment != null && e.RecurringEventId.Equals(m.GoogleAppointment.Id))
{
m.GoogleAppointmentExceptions.Add(e);
found = true;
break;
}
}
if (!found)
{
Logger.Log(string.Format("No match found for Google appointment exception: {0}", e.Summary + " - " + AppointmentsSynchronizer.GetTime(e)), EventType.Debug);
}
}
return(result);
}
private static void SyncAppointmentNoGoogle(AppointmentMatch match, AppointmentsSynchronizer sync)
{
string googleAppointmentId = AppointmentPropertiesUtils.GetOutlookGoogleAppointmentId(sync, match.OutlookAppointment);
if (!string.IsNullOrEmpty(googleAppointmentId))
{
//Redundant check if exist, but in case an error occurred in MatchAppointments or not all appointments have been loaded (e.g. because months before/after constraint)
Event matchingGoogleAppointment = null;
if (sync.AllGoogleAppointments != null)
{
matchingGoogleAppointment = sync.GetGoogleAppointmentById(googleAppointmentId);
}
else
{
matchingGoogleAppointment = sync.LoadGoogleAppointments(googleAppointmentId, null, null, null, null);
}
if (matchingGoogleAppointment == null)
{
if (sync.SyncOption == SyncOption.OutlookToGoogleOnly || !sync.SyncDelete)
{
return;
}
else if (!sync.PromptDelete && match.OutlookAppointment.Recipients.Count == 0)
{
sync.DeleteOutlookResolution = DeleteResolution.DeleteOutlookAlways;
}
else if (sync.DeleteOutlookResolution != DeleteResolution.DeleteOutlookAlways &&
sync.DeleteOutlookResolution != DeleteResolution.KeepOutlookAlways)
{
using (var r = new ConflictResolver())
{
sync.DeleteOutlookResolution = r.ResolveDelete(match.OutlookAppointment);
}
}
switch (sync.DeleteOutlookResolution)
{
case DeleteResolution.KeepOutlook:
case DeleteResolution.KeepOutlookAlways:
AppointmentPropertiesUtils.ResetOutlookGoogleAppointmentId(sync, match.OutlookAppointment);
break;
case DeleteResolution.DeleteOutlook:
case DeleteResolution.DeleteOutlookAlways:
if (match.OutlookAppointment.Recipients.Count > 1)
{
//ToDo:Maybe find as better way, e.g. to ask the user, if he wants to overwrite the invalid appointment
Logger.Log("Outlook Appointment not deleted, because multiple participants found, invitation maybe NOT sent by Google: " + match.OutlookAppointment.Subject + " - " + match.OutlookAppointment.Start, EventType.Information);
AppointmentPropertiesUtils.ResetOutlookGoogleAppointmentId(sync, match.OutlookAppointment);
break;
}
else
{
//Avoid recreating a GoogleAppointment already existing
//==> Delete this OutlookAppointment instead if previous match existed but no match exists anymore
return;
}
default:
throw new ApplicationException("Cancelled");
}
}
else
{
sync.SkippedCount++;
match.GoogleAppointment = matchingGoogleAppointment;
Logger.Log("Outlook Appointment not deleted, because still existing on Google side, maybe because months restriction: " + match.OutlookAppointment.Subject + " - " + match.OutlookAppointment.Start, EventType.Information);
return;
}
}
if (sync.SyncOption == SyncOption.GoogleToOutlookOnly)
{
sync.SkippedCount++;
Logger.Log(string.Format("Outlook appointment not added to Google, because of SyncOption " + sync.SyncOption.ToString() + ": {0}", match.OutlookAppointment.Subject), EventType.Information);
return;
}
//create a Google appointment from Outlook appointment
match.GoogleAppointment = Factory.NewEvent();
sync.UpdateAppointment(match.OutlookAppointment, ref match.GoogleAppointment);
}
