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<?php
/*
 * Xibo - Digital Signage - http://www.xibo.org.uk
 * Copyright (C) 2015 Spring Signage Ltd
 *
 * This file (PlaylistFactory.php) is part of Xibo.
 *
 * Xibo 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
 * any later version.
 *
 * Xibo 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 Xibo.  If not, see <http://www.gnu.org/licenses/>.
 */

namespace Xibo\Factory;

use Xibo\Entity\Playlist;
use Xibo\Exception\NotFoundException;
use Xibo\Service\DateServiceInterface;
use Xibo\Service\LogServiceInterface;
use Xibo\Service\SanitizerServiceInterface;
use Xibo\Storage\StorageServiceInterface;

/**
 * Class PlaylistFactory
 * @package Xibo\Factory
 */
class PlaylistFactory extends BaseFactory
{
    /**
     * @var DateServiceInterface
     */
    public $dateService;

/**
     * @var PermissionFactory
     */
    private $permissionFactory;

/**
     * @var WidgetFactory
     */
    private $widgetFactory;

/**
     * Construct a factory
     * @param StorageServiceInterface $store
     * @param LogServiceInterface $log
     * @param SanitizerServiceInterface $sanitizerService
     * @param DateServiceInterface $date
     * @param PermissionFactory $permissionFactory
     * @param WidgetFactory $widgetFactory
     */
    public function __construct($store, $log, $sanitizerService, $date, $permissionFactory, $widgetFactory)
    {
        $this->setCommonDependencies($store, $log, $sanitizerService);

$this->dateService = $date;
        $this->permissionFactory = $permissionFactory;
        $this->widgetFactory = $widgetFactory;
    }

/**
     * @return Playlist
     */
    public function createEmpty()
    {
        return new Playlist($this->getStore(), $this->getLog(), $this->dateService, $this->permissionFactory, $this->widgetFactory);
    }

/**
     * Load Playlists by
     * @param $regionId
     * @return array[Playlist]
     * @throws NotFoundException
     */
    public function getByRegionId($regionId)
    {
        return $this->query(null, array('disableUserCheck' => 1, 'regionId' => $regionId));
    }

/**
     * Get by Id
     * @param int $playlistId
     * @return Playlist
     * @throws NotFoundException
     */
    public function getById($playlistId)
    {
        $playlists = $this->query(null, array('disableUserCheck' => 1, 'playlistId' => $playlistId));

if (count($playlists) <= 0)
            throw new NotFoundException(__('Cannot find playlist'));

return $playlists[0];
    }

/**
     * Create a Playlist
     * @param string $name
     * @param int $ownerId
     * @return Playlist
     */
    public function create($name, $ownerId)
    {
        $playlist = $this->createEmpty();
        $playlist->name = $name;
        $playlist->ownerId = $ownerId;

return $playlist;
    }

public function query($sortOrder = null, $filterBy = [])
    {
        $entries = array();

$params = array();
        $select = 'SELECT playlist.* ';

if ($this->getSanitizer()->getInt('regionId', $filterBy) !== null) {
            $select .= ' , lkregionplaylist.displayOrder ';
        }

$body = '  FROM `playlist` ';

if ($this->getSanitizer()->getInt('regionId', $filterBy) !== null) {
            $body .= '
                INNER JOIN `lkregionplaylist`
                ON lkregionplaylist.playlistId = playlist.playlistId
                    AND lkregionplaylist.regionId = :regionId
            ';
            $params['regionId'] = $this->getSanitizer()->getInt('regionId', $filterBy);
        }

$body .= ' WHERE 1 = 1 ';

if ($this->getSanitizer()->getInt('playlistId', $filterBy) != 0) {
            $body .= ' AND playlistId = :playlistId ';
            $params['playlistId'] = $this->getSanitizer()->getInt('playlistId', $filterBy);
        }

// Sorting?
        $order = '';
        if (is_array($sortOrder))
            $order .= 'ORDER BY ' . implode(',', $sortOrder);

$limit = '';
        // Paging
        if ($filterBy !== null && $this->getSanitizer()->getInt('start', $filterBy) !== null && $this->getSanitizer()->getInt('length', $filterBy) !== null) {
            $limit = ' LIMIT ' . intval($this->getSanitizer()->getInt('start', $filterBy), 0) . ', ' . $this->getSanitizer()->getInt('length', 10, $filterBy);
        }

$sql = $select . $body . $order . $limit;

foreach ($this->getStore()->select($sql, $params) as $row) {
            $entries[] = $this->createEmpty()->hydrate($row);
        }

// Paging
        if ($limit != '' && count($entries) > 0) {
            $results = $this->getStore()->select('SELECT COUNT(*) AS total ' . $body, $params);
            $this->_countLast = intval($results[0]['total']);
        }

return $entries;
    }
}