find possible calender conflicts

3 files changed, 172 insertions, 1 deletions

diff --git a/lib/Controller/OptionController.php b/lib/Controller/OptionController.php
index 3b1e7f1e..e8fd8cad 100644
--- a/lib/Controller/OptionController.php
+++ b/lib/Controller/OptionController.php
@@ -23,6 +23,8 @@
 
 namespace OCA\Polls\Controller;
 
+use DateTime;
+use DateInterval;
 use Exception;
 
 use OCP\IRequest;
@@ -31,12 +33,17 @@ use OCP\AppFramework\Controller;
 use OCP\AppFramework\Http;
 use OCP\AppFramework\Http\DataResponse;
 use OCA\Polls\Service\OptionService;
+use OCA\Polls\Service\CalendarService;
+
 
 class OptionController extends Controller {
 
 	/** @var OptionService */
 	private $optionService;
 
+	/** @var CalendarService */
+	private $calendarService;
+
 	/**
 	 * OptionController constructor.
 	 * @param string $appName
@@ -47,10 +54,12 @@ class OptionController extends Controller {
 	public function __construct(
 		string $appName,
 		IRequest $request,
-		OptionService $optionService
+		OptionService $optionService,
+		CalendarService $calendarService
 	) {
 		parent::__construct($appName, $request);
 		$this->optionService = $optionService;
+		$this->calendarService = $calendarService;
 	}
 
 	/**
@@ -113,4 +122,48 @@ class OptionController extends Controller {
 	public function reorder($pollId, $options) {
 		return new DataResponse(['options' => $this->optionService->reorder($pollId, $options)], Http::STATUS_OK);
 	}
+
+	/**
+	 * findCalendarEvents
+	 * @NoAdminRequired
+	 * @param integer $from
+	 * @param integer $to
+	 * @return DataResponse
+	 */
+	public function findCalendarEvents($optionId) {
+
+		$searchFrom = new DateTime();
+		$searchFrom = $searchFrom->setTimestamp($this->optionService->get($optionId)->getTimestamp())->sub(new DateInterval('PT1H'));
+		$searchTo = clone $searchFrom;
+		$searchTo = $searchTo->add(new DateInterval('PT3H'));
+
+		\OC::$server->getLogger()->alert('Search events between ' . $searchFrom->format('Y-m-d H:i:s') . ' and ' . $searchTo->format('Y-m-d H:i:s'));
+
+		return new DataResponse(['events' => array_values($this->calendarService->getEvents($searchFrom, $searchTo))], Http::STATUS_OK);
+
+
+		if (is_int($from)) {
+			$searchFrom = new DateTime();
+			$searchFrom = $searchFrom->setTimestamp($from);
+		} else {
+			$searchFrom = new DateTime($from);
+		}
+
+
+		if (!$to) {
+			$searchTo = clone $searchFrom;
+			$searchTo = $searchTo->add(new DateInterval('PT1H'));
+
+		} else if (is_int($to)) {
+				$searchTo = new DateTime();
+				$searchTo = $searchTo->setTimestamp($to);
+		} else {
+			$searchTo = new DateTime($to);
+		}
+
+		$events = array_values($this->calendarService->getEvents($searchFrom, $searchTo));
+		return $events;
+
+	}
+
 }
diff --git a/lib/Service/CalendarService.php b/lib/Service/CalendarService.php
new file mode 100644
index 00000000..68f9c0f2
--- /dev/null
+++ b/lib/Service/CalendarService.php
@@ -0,0 +1,102 @@
+<?php
+/**
+ * @copyright Copyright (c) 2017 Vinzenz Rosenkranz <vinzenz.rosenkranz@gmail.com>
+ *
+ * @author René Gieling <github@dartcafe.de>
+*
+ * @license GNU AGPL version 3 or any later version
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU Affero General Public License as
+ *  published by the Free Software Foundation, either version 3 of the
+ *  License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Affero General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Affero General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+
+namespace OCA\Polls\Service;
+
+use DateTime;
+use OCP\Calendar\IManager as CalendarManager;
+use OCP\Calendar\ICalendar;
+
+class CalendarService {
+
+	private $calendarManager;
+	private $calendars;
+
+	public function __construct(
+		CalendarManager $calendarManager
+	) {
+		$this->calendarManager = $calendarManager;
+		$this->calendars = $this->calendarManager->getCalendars();
+	}
+
+	/**
+	 * getEvents - get events from the user's calendars inside given timespan
+	 * @NoAdminRequired
+	 * @param DateTime $from
+	 * @param DateTime $to
+	 * @return Array
+	 */
+	public function getEvents($from, $to) {
+		$events = [];
+
+		foreach ($this->calendars as $calendar) {
+			$foundEvents = $calendar->search('' ,['SUMMARY'], ['timerange' => ['start' => $from, 'end' => $to]]);
+			foreach ($foundEvents as $event) {
+				array_push($events, [
+					'relatedFrom' => $from->getTimestamp(),
+					'relatedTo' => $to->getTimestamp(),
+					'name' => $calendar->getDisplayName(),
+					'key' => $calendar->getKey(),
+					'displayColor' => $calendar->getDisplayColor(),
+					'permissions' => $calendar->getPermissions(),
+					'eventId' => $event['id'],
+					'UID' => $event['objects'][0]['UID'][0],
+					'summary' => isset($event['objects'][0]['SUMMARY'][0])? $event['objects'][0]['SUMMARY'][0] : '',
+					'description' => isset($event['objects'][0]['DESCRIPTION'][0])? $event['objects'][0]['DESCRIPTION'][0] : '',
+					'location' => isset($event['objects'][0]['LOCATION'][0]) ? $event['objects'][0]['LOCATION'][0] : '',
+					'eventFrom' => isset($event['objects'][0]['DTSTART'][0]) ? $event['objects'][0]['DTSTART'][0]->getTimestamp() : 0,
+					'eventTo' => isset($event['objects'][0]['DTEND'][0] ) ? $event['objects'][0]['DTEND'][0]->getTimestamp() : 0,
+					'calDav' => $event
+				]);
+			}
+		}
+		return $events;
+	}
+
+	/**
+	 * Get user's calendars
+	 * @NoAdminRequired
+	 * @return Array
+	 */
+	public function getCalendars() {
+		return $this->calendars;
+	}
+
+
+	/**
+	 * Get events from the user's calendar which are 2 hours before and 3 hours after the timestamp
+	 * @NoAdminRequired
+	 * @param DateTime $from
+	 * @return Array
+	 */
+	public function getEventsAround($from) {
+		$from = new DateTime($from);
+		$to = new DateTime($from);
+		return $this->getEvents(
+			$from->sub(new DateInterval('P2H')),
+			$to->add(new DateInterval('P3H'))
+		);
+	}
+
+}
diff --git a/lib/Service/OptionService.php b/lib/Service/OptionService.php
index 7208a154..0e2dbb88 100644
--- a/lib/Service/OptionService.php
+++ b/lib/Service/OptionService.php
@@ -103,6 +103,22 @@ class OptionService {
 		}
 	}
 
+	/**
+	 * Get option
+	 * @NoAdminRequired
+	 * @param int $optionId
+	 * @return Option
+	 * @throws NotAuthorizedException
+	 */
+	public function get($optionId) {
+
+		if (!$this->acl->set($this->optionMapper->find($optionId)->getPollId())->getAllowView()) {
+			throw new NotAuthorizedException;
+		}
+
+		return $this->optionMapper->find($optionId);
+	}
+
 
 	/**
 	 * Add a new option