feat(GODT-2442): handle bad event resync resolution.

internal/user/events.go

@@ -86,12 +86,22 @@ func (user *User) handleRefreshEvent(ctx context.Context, refresh proton.Refresh
 		l.WithError(err).Error("Failed to report refresh to sentry")
 	}
 
-	// Cancel the event stream once this refresh is done.
-	defer user.pollAbort.Abort()
+	return user.SyncEvent(ctx)
+}
 
-	// Resync after the refresh.
+func (user *User) SyncEvent(ctx context.Context) error {
+	// Cancel the event stream
+	user.pollAbort.Abort() // ??? There was a defer here. But I think it's best to do this immediately, there is no reason to continue with polls while having re-sync.
+
+	// Re-sync messages after the user, address and label refresh.
 	defer user.goSync()
 
+	// stop IMAP and SMTP
+
+	if err := user.vault.SetEventID(""); err != nil {
+		return fmt.Errorf("failed to clean latest event ID: %w", err)
+	}
+
 	return safe.LockRet(func() error {
 		// Fetch latest user info.
 		apiUser, err := user.client.GetUser(ctx)

internal/user/user.go

@@ -626,6 +626,17 @@ func (user *User) doEventPoll(ctx context.Context) error {
 	user.eventLock.Lock()
 	defer user.eventLock.Unlock()
 
+	eventID := user.vault.EventID()
+	if eventID == "" {
+		err := errors.New("current eventID is empty")
+		user.eventCh.Enqueue(events.UncategorizedEventError{ // this might be bad event.. I hope sync is ongoing
+			UserID: user.ID(),
+			Error:  err,
+		})
+
+		return err
+	}
+
 	event, err := user.client.GetEvent(ctx, user.vault.EventID())
 	if err != nil {
 		return fmt.Errorf("failed to get event (caused by %T): %w", internal.ErrCause(err), err)