-                                       //Locked session
-                                       if (!empty($session['locked']) && $events[$sessionId]) {
-                                               //With events
-                                               if (!empty($event = $events[$sessionId])) {
-                                                       try {
-                                                               //Delete the event
-                                                               $googleCalendar->events->delete($token['calendar'], $event->getId());
-                                                       //Catch exception
-                                                       } catch(\Google\Service\Exception $e) {
-                                                               //Display exception
-                                                               //TODO: handle codes here https://developers.google.com/calendar/api/guides/errors
-                                                               echo 'Exception '.$e->getCode().':'.$e->getMessage().' in '.$e->getFile().' +'.$e->getLine()."\n";
-                                                               echo $e->getTraceAsString()."\n";
-
-                                                               //Return failure
-                                                               return self::FAILURE;
-                                                       }
-                                               }
-                                       //Without event
-                                       } elseif (empty($events[$sessionId])) {
-                                               //Init event
-                                               $event = new \Google\Service\Calendar\Event(
-                                                       [
-                                                               //TODO: replace 'airlibre' with $this->config['calendar']['prefix'] when possible with prefix validating [a-v0-9]{5,}
-                                                               //XXX: see https://developers.google.com/calendar/api/v3/reference/events/insert#id
-                                                               'id' => $token['prefix'].$sessionId,
-                                                               #'summary' => $session['au_pseudonym'].' '.$this->translator->trans('at '.$session['l_title']),
-                                                               'summary' => $source['title'],
-                                                               #'description' => $markdown->convert(strip_tags($session['p_description'])),
-                                                               'description' => $description,
-                                                               'status' => empty($session['a_canceled'])?'confirmed':'cancelled',
-                                                               'location' => implode(' ', [$session['l_address'], $session['l_zipcode'], $session['l_city']]),
-                                                               'source' => $source,
-                                                               'extendedProperties' => [
-                                                                       'shared' => $shared
-                                                               ],
-                                                               //TODO: colorId ?
-                                                               //TODO: attendees[] ?
-                                                               'start' => [
-                                                                       'dateTime' => $session['start']->format(\DateTime::ISO8601)
-                                                               ],
-                                                               'end' => [
-                                                                       'dateTime' => $session['stop']->format(\DateTime::ISO8601)
-                                                               ]
-                                                       ]
-                                               );
-
-                                               try {
-                                                       //Insert the event
-                                                       $googleCalendar->events->insert($token['calendar'], $event);
-                                               //Catch exception
-                                               } catch(\Google\Service\Exception $e) {
-                                                       //Display exception
-                                                       //TODO: handle codes here https://developers.google.com/calendar/api/guides/errors
-                                                       echo 'Exception '.$e->getCode().':'.$e->getMessage().' in '.$e->getFile().' +'.$e->getLine()."\n";
-                                                       echo $e->getTraceAsString()."\n";
-
-                                                       //Return failure
-                                                       return self::FAILURE;
-                                               }
-                                       // With event
-                                       } else {
-                                               //Set event
-                                               $event = $events[$sessionId];
+               //Return success
+               return self::SUCCESS;
+       }
+
+       /**
+        * Delete event
+        *
+        * @param string $calendar The calendar mail
+        * @param Event $event The google event instance
+        * @return void
+        */
+       function delete(string $calendar, Event $event): int {
+               //Get cache events
+               $cacheEvents = $this->item->get();
+
+               //Get event id
+               $eid = $event->getId();
+
+               //Delete the event
+               $this->service->events->delete($calendar, $eid);