/// <summary>
/// Downloads data from server, and uploads local data to server for all linked Google accounts.
/// </summary>
private void GlobalResync(CancellationToken token)
{
DateTime lastSync = Settings.LastSuccessfulSync;
try
{
GoogleAccount[] accounts = GoogleAccounts.AllAccounts();
if (accounts == null || accounts.Length == 0)
{
Done = true;
return;
}
ThrowIfNetworkUnavailable();
// Lock the last sync in now; any events created during the
// sync process will be ignored, and will be handled by the
// next sync.
Settings.LastSuccessfulSync = DateTime.UtcNow;
SyncObject[] upload = SyncDatabase.AllSyncObjects();
token.ThrowIfCancellationRequested();
//
// Calendars
//
Status = "Downloading calendar list";
int calendars = SyncCalendars(accounts, token);
_total = calendars * 3 + 2;
_progress = 1;
RaiseEvent(ProgressChangedEvent);
token.ThrowIfCancellationRequested();
//
// Events
//
foreach (GoogleAccount gAccount in accounts)
{
string email = gAccount.Email;
foreach (string feedUrl in gAccount.LinkedCalendars)
{
//
// Update new account
//
if (SyncDatabase.GetSyncObject(email) != null)
{
Status = "Syncing " + email;
CalendarHelper.MergeCalendar(email, gAccount.Password, feedUrl, token);
SyncDatabase.Delete(email);
token.ThrowIfCancellationRequested();
_progress += 3;
RaiseEvent(ProgressChangedEvent);
}
//
// Update existing account
//
else
{
CalendarService calendarService = CalendarHelper.GetService(GlobalData.GoogleDataAppName,
email, gAccount.Password);
Status = "Uploading local calendar";
foreach (SyncObject each in upload)
{
switch (each.SyncType)
{
case SyncType.Create:
case SyncType.Modify:
{
if (each.OldUrl != "")
{
// We don't know which account owned this calendar; try to delete it
// from every account.
try
{
IEnumerable <EventEntry> entries = CalendarHelper.GetElementsByDaytimerID(
each.ReferenceID, calendarService, each.OldUrl,
token);
if (entries != null)
{
foreach (EventEntry entry in entries)
{
entry.Delete();
}
}
}
catch { }
}
Appointment appt = AppointmentDatabase.GetAppointment(each.ReferenceID);
//if (appt != null && appt.Sync && (appt.Owner == "" || appt.Owner == email))
// CalendarHelper.AddEvent(calendarService, feedUrl, appt);
// Uncomment the following method after UI is implemented
// which allows user to select where to upload event.
if (appt != null && appt.Sync && appt.Owner == email) // && (appt.Owner == "" || appt.Owner == email))
{
CalendarHelper.AddEvent(calendarService,
appt.CalendarUrl != "" ? appt.CalendarUrl : feedUrl, appt,
token);
}
}
break;
case SyncType.Delete:
{
IEnumerable <EventEntry> entries = CalendarHelper.GetElementsByDaytimerID(
each.ReferenceID, calendarService, each.Url != "" ? each.Url : feedUrl,
token);
if (entries != null)
{
foreach (EventEntry entry in entries)
{
entry.Delete();
}
}
}
break;
default:
break;
}
}
token.ThrowIfCancellationRequested();
_progress++;
RaiseEvent(ProgressChangedEvent);
Status = "Downloading " + email;
IEnumerable <EventEntry> download = CalendarHelper.GetAllEventsModifiedSince(calendarService, feedUrl, lastSync, token);
token.ThrowIfCancellationRequested();
_progress++;
RaiseEvent(ProgressChangedEvent);
CalendarHelper.DownloadMergeCalendar(download, email, calendarService, feedUrl, token);
token.ThrowIfCancellationRequested();
_progress++;
RaiseEvent(ProgressChangedEvent);
}
}
}
Status = "Cleaning up";
// Clear sync queue
foreach (SyncObject each in upload)
{
SyncDatabase.Delete(each);
}
_progress++;
RaiseEvent(ProgressChangedEvent);
}
catch (Exception exc)
{
_error = exc;
Settings.LastSuccessfulSync = lastSync;
}
finally
{
ReminderQueue.Populate();
Done = true;
}
}