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<?php
/**
 * @package     Joomla.Site
 * @subpackage  com_content
 *
 * @copyright   (C) 2006 Open Source Matters, Inc. <https://www.joomla.org>
 * @license     GNU General Public License version 2 or later; see LICENSE.txt
 */

namespace Joomla\Component\Content\Site\Service;

\defined('_JEXEC') or die;

use Joomla\CMS\Application\SiteApplication;
use Joomla\CMS\Categories\CategoryFactoryInterface;
use Joomla\CMS\Categories\CategoryInterface;
use Joomla\CMS\Component\ComponentHelper;
use Joomla\CMS\Component\Router\RouterView;
use Joomla\CMS\Component\Router\RouterViewConfiguration;
use Joomla\CMS\Component\Router\Rules\MenuRules;
use Joomla\CMS\Component\Router\Rules\NomenuRules;
use Joomla\CMS\Component\Router\Rules\StandardRules;
use Joomla\CMS\Menu\AbstractMenu;
use Joomla\Database\DatabaseInterface;
use Joomla\Database\ParameterType;

/**
 * Routing class of com_content
 *
 * @since  3.3
 */
class Router extends RouterView
{
	/**
	 * Flag to remove IDs
	 *
	 * @var    boolean
	 */
	protected $noIDs = false;

/**
	 * The category factory
	 *
	 * @var CategoryFactoryInterface
	 *
	 * @since  4.0.0
	 */
	private $categoryFactory;

/**
	 * The category cache
	 *
	 * @var  array
	 *
	 * @since  4.0.0
	 */
	private $categoryCache = [];

/**
	 * The db
	 *
	 * @var DatabaseInterface
	 *
	 * @since  4.0.0
	 */
	private $db;

/**
	 * Content Component router constructor
	 *
	 * @param   SiteApplication           $app              The application object
	 * @param   AbstractMenu              $menu             The menu object to work with
	 * @param   CategoryFactoryInterface  $categoryFactory  The category object
	 * @param   DatabaseInterface         $db               The database object
	 */
	public function __construct(SiteApplication $app, AbstractMenu $menu, CategoryFactoryInterface $categoryFactory, DatabaseInterface $db)
	{
		$this->categoryFactory = $categoryFactory;
		$this->db              = $db;

$params = ComponentHelper::getParams('com_content');
		$this->noIDs = (bool) $params->get('sef_ids');
		$categories = new RouterViewConfiguration('categories');
		$categories->setKey('id');
		$this->registerView($categories);
		$category = new RouterViewConfiguration('category');
		$category->setKey('id')->setParent($categories, 'catid')->setNestable()->addLayout('blog');
		$this->registerView($category);
		$article = new RouterViewConfiguration('article');
		$article->setKey('id')->setParent($category, 'catid');
		$this->registerView($article);
		$this->registerView(new RouterViewConfiguration('archive'));
		$this->registerView(new RouterViewConfiguration('featured'));
		$form = new RouterViewConfiguration('form');
		$form->setKey('a_id');
		$this->registerView($form);

parent::__construct($app, $menu);

$this->attachRule(new MenuRules($this));
		$this->attachRule(new StandardRules($this));
		$this->attachRule(new NomenuRules($this));
	}

/**
	 * Method to get the segment(s) for a category
	 *
	 * @param   string  $id     ID of the category to retrieve the segments for
	 * @param   array   $query  The request that is built right now
	 *
	 * @return  array|string  The segments of this item
	 */
	public function getCategorySegment($id, $query)
	{
		$category = $this->getCategories(['access' => true])->get($id);

if ($category)
		{
			$path = array_reverse($category->getPath(), true);
			$path[0] = '1:root';

if ($this->noIDs)
			{
				foreach ($path as &$segment)
				{
					list($id, $segment) = explode(':', $segment, 2);
				}
			}

return $path;
		}

return array();
	}

/**
	 * Method to get the segment(s) for a category
	 *
	 * @param   string  $id     ID of the category to retrieve the segments for
	 * @param   array   $query  The request that is built right now
	 *
	 * @return  array|string  The segments of this item
	 */
	public function getCategoriesSegment($id, $query)
	{
		return $this->getCategorySegment($id, $query);
	}

/**
	 * Method to get the segment(s) for an article
	 *
	 * @param   string  $id     ID of the article to retrieve the segments for
	 * @param   array   $query  The request that is built right now
	 *
	 * @return  array|string  The segments of this item
	 */
	public function getArticleSegment($id, $query)
	{
		if (!strpos($id, ':'))
		{
			$id      = (int) $id;
			$dbquery = $this->db->getQuery(true);
			$dbquery->select($this->db->quoteName('alias'))
				->from($this->db->quoteName('#__content'))
				->where($this->db->quoteName('id') . ' = :id')
				->bind(':id', $id, ParameterType::INTEGER);
			$this->db->setQuery($dbquery);

$id .= ':' . $this->db->loadResult();
		}

if ($this->noIDs)
		{
			list($void, $segment) = explode(':', $id, 2);

return array($void => $segment);
		}

return array((int) $id => $id);
	}

/**
	 * Method to get the segment(s) for a form
	 *
	 * @param   string  $id     ID of the article form to retrieve the segments for
	 * @param   array   $query  The request that is built right now
	 *
	 * @return  array|string  The segments of this item
	 *
	 * @since   3.7.3
	 */
	public function getFormSegment($id, $query)
	{
		return $this->getArticleSegment($id, $query);
	}

/**
	 * Method to get the id for a category
	 *
	 * @param   string  $segment  Segment to retrieve the ID for
	 * @param   array   $query    The request that is parsed right now
	 *
	 * @return  mixed   The id of this item or false
	 */
	public function getCategoryId($segment, $query)
	{
		if (isset($query['id']))
		{
			$category = $this->getCategories(['access' => false])->get($query['id']);

if ($category)
			{
				foreach ($category->getChildren() as $child)
				{
					if ($this->noIDs)
					{
						if ($child->alias == $segment)
						{
							return $child->id;
						}
					}
					else
					{
						if ($child->id == (int) $segment)
						{
							return $child->id;
						}
					}
				}
			}
		}

return false;
	}

/**
	 * Method to get the segment(s) for a category
	 *
	 * @param   string  $segment  Segment to retrieve the ID for
	 * @param   array   $query    The request that is parsed right now
	 *
	 * @return  mixed   The id of this item or false
	 */
	public function getCategoriesId($segment, $query)
	{
		return $this->getCategoryId($segment, $query);
	}

/**
	 * Method to get the segment(s) for an article
	 *
	 * @param   string  $segment  Segment of the article to retrieve the ID for
	 * @param   array   $query    The request that is parsed right now
	 *
	 * @return  mixed   The id of this item or false
	 */
	public function getArticleId($segment, $query)
	{
		if ($this->noIDs)
		{
			$dbquery = $this->db->getQuery(true);
			$dbquery->select($this->db->quoteName('id'))
				->from($this->db->quoteName('#__content'))
				->where(
					[
						$this->db->quoteName('alias') . ' = :alias',
						$this->db->quoteName('catid') . ' = :catid',
					]
				)
				->bind(':alias', $segment)
				->bind(':catid', $query['id'], ParameterType::INTEGER);
			$this->db->setQuery($dbquery);

return (int) $this->db->loadResult();
		}

return (int) $segment;
	}

/**
	 * Method to get categories from cache
	 *
	 * @param   array  $options   The options for retrieving categories
	 *
	 * @return  CategoryInterface  The object containing categories
	 *
	 * @since   4.0.0
	 */
	private function getCategories(array $options = []): CategoryInterface
	{
		$key = serialize($options);

if (!isset($this->categoryCache[$key]))
		{
			$this->categoryCache[$key] = $this->categoryFactory->createCategory($options);
		}

return $this->categoryCache[$key];
	}
}