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<?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 Exception;
use OCA\Polls\Exceptions\NotAuthorizedException;
use OCP\AppFramework\Db\MultipleObjectsReturnedException;
use OCP\AppFramework\Db\DoesNotExistException;
use OCA\Polls\Db\Subscription;
use OCA\Polls\Db\SubscriptionMapper;
use OCA\Polls\Model\Acl;
class SubscriptionService {
/** @var Acl */
private $acl;
/** @var SubscriptionMapper */
private $subscriptionMapper;
/**
* SubscriptionController constructor.
* @param SubscriptionMapper $subscriptionMapper
* @param Acl $acl
*/
public function __construct(
SubscriptionMapper $subscriptionMapper,
Acl $acl
) {
$this->subscriptionMapper = $subscriptionMapper;
$this->acl = $acl;
}
/**
* @NoAdminRequired
* @param int $pollId
* @return array
*/
public function get($pollId) {
if (!$this->acl->setPollId($pollId)->getAllowView()) {
throw new NotAuthorizedException;
}
try {
return $this->subscriptionMapper->findByUserAndPoll($pollId, $this->acl->getUserId());
} catch (MultipleObjectsReturnedException $e) {
// subscription should be unique. If duplicates are found resubscribe
// duplicates are removed in $this->set()
return $this->set($pollId, true);
}
}
/**
* @NoAdminRequired
* @param int $pollId
* @return array
*/
public function set($pollId, $subscribed) {
if (!$this->acl->setPollId($pollId)->getAllowView()) {
throw new NotAuthorizedException;
}
try {
$subscription = $this->subscriptionMapper->findByUserAndPoll($pollId, $this->acl->getUserId());
if (!$subscribed) {
$this->subscriptionMapper->delete($subscription);
return ['status' => 'Unsubscribed from poll ' . $pollId];
} else {
// subscription already exists, just return the existing subscription
return ['status' => 'Subscribed to poll ' . $pollId];
}
} catch (DoesNotExistException $e) {
if ($subscribed) {
$subscription = new Subscription();
$subscription->setPollId($pollId);
$subscription->setUserId($this->acl->getUserId());
$this->subscriptionMapper->insert($subscription);
return ['status' => 'Subscribed to poll ' . $pollId];
} else {
// subscription is not found, just approve the unsubscription
return ['status' => 'Unsubscribed from poll ' . $pollId];
}
} catch (MultipleObjectsReturnedException $e) {
// Duplicates should not exist but if found, fix it
// unsubscribe from all and resubscribe, if requested
\OC::$server->getLogger()->debug('Multiple subscription (dulpicates) found');
$this->subscriptionMapper->unsubscribe($pollId, $this->acl->getUserId());
\OC::$server->getLogger()->debug('Unsubscribed all for user ' . $this->acl->getUserId() . 'in poll' . $pollId);
if ($subscribed) {
$subscription = new Subscription();
$subscription->setPollId($pollId);
$subscription->setUserId($this->acl->getUserId());
$this->subscriptionMapper->insert($subscription);
\OC::$server->getLogger()->debug('Added new subscription');
return $subscription;
} else {
return ['status' => 'Unsubscribed from poll ' . $pollId];
}
}
}
}
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