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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\Model;

\defined('_JEXEC') or die;

use Joomla\CMS\Factory;
use Joomla\Component\Content\Administrator\Extension\ContentComponent;
use Joomla\Component\Content\Site\Helper\QueryHelper;
use Joomla\Database\ParameterType;

/**
 * Content Component Archive Model
 *
 * @since  1.5
 */
class ArchiveModel extends ArticlesModel
{
	/**
	 * Model context string.
	 *
	 * @var		string
	 */
	public $_context = 'com_content.archive';

/**
	 * Method to auto-populate the model state.
	 *
	 * Note. Calling getState in this method will result in recursion.
	 *
	 * @param   string  $ordering   The field to order on.
	 * @param   string  $direction  The direction to order on.
	 *
	 * @return  void
	 *
	 * @since   1.6
	 */
	protected function populateState($ordering = null, $direction = null)
	{
		parent::populateState();

$app = Factory::getApplication();

// Add archive properties
		$params = $this->state->get('params');

// Filter on archived articles
		$this->setState('filter.published', ContentComponent::CONDITION_ARCHIVED);

// Filter on month, year
		$this->setState('filter.month', $app->input->getInt('month'));
		$this->setState('filter.year', $app->input->getInt('year'));

// Optional filter text
		$this->setState('list.filter', $app->input->getString('filter-search'));

// Get list limit
		$itemid = $app->input->get('Itemid', 0, 'int');
		$limit = $app->getUserStateFromRequest('com_content.archive.list' . $itemid . '.limit', 'limit', $params->get('display_num', 20), 'uint');
		$this->setState('list.limit', $limit);

// Set the archive ordering
		$articleOrderby   = $params->get('orderby_sec', 'rdate');
		$articleOrderDate = $params->get('order_date');

// No category ordering
		$secondary = QueryHelper::orderbySecondary($articleOrderby, $articleOrderDate, $this->getDbo());

$this->setState('list.ordering', $secondary . ', a.created DESC');
		$this->setState('list.direction', '');
	}

/**
	 * Get the master query for retrieving a list of articles subject to the model state.
	 *
	 * @return  \JDatabaseQuery
	 *
	 * @since   1.6
	 */
	protected function getListQuery()
	{
		$params           = $this->state->params;
		$app              = Factory::getApplication();
		$catids           = $app->input->get('catid', array(), 'array');
		$catids           = array_values(array_diff($catids, array('')));

$articleOrderDate = $params->get('order_date');

// Create a new query object.
		$db = $this->getDbo();
		$query = parent::getListQuery();

// Add routing for archive
		$query->select(
			[
				$this->getSlugColumn($query, 'a.id', 'a.alias') . ' AS ' . $db->quoteName('slug'),
				$this->getSlugColumn($query, 'c.id', 'c.alias') . ' AS ' . $db->quoteName('catslug'),
			]
		);

// Filter on month, year
		// First, get the date field
		$queryDate = QueryHelper::getQueryDate($articleOrderDate, $this->getDbo());

if ($month = (int) $this->getState('filter.month'))
		{
			$query->where($query->month($queryDate) . ' = :month')
				->bind(':month', $month, ParameterType::INTEGER);
		}

if ($year = (int) $this->getState('filter.year'))
		{
			$query->where($query->year($queryDate) . ' = :year')
				->bind(':year', $year, ParameterType::INTEGER);
		}

if (count($catids) > 0)
		{
			$query->whereIn($db->quoteName('c.id'), $catids);
		}

return $query;
	}

/**
	 * Method to get the archived article list
	 *
	 * @access public
	 * @return array
	 */
	public function getData()
	{
		$app = Factory::getApplication();

// Lets load the content if it doesn't already exist
		if (empty($this->_data))
		{
			// Get the page/component configuration
			$params = $app->getParams();

// Get the pagination request variables
			$limit      = $app->input->get('limit', $params->get('display_num', 20), 'uint');
			$limitstart = $app->input->get('limitstart', 0, 'uint');

$query = $this->_buildQuery();

$this->_data = $this->_getList($query, $limitstart, $limit);
		}

return $this->_data;
	}

/**
	 * Gets the archived articles years
	 *
	 * @return   array
	 *
	 * @since    3.6.0
	 */
	public function getYears()
	{
		$db      = $this->getDbo();
		$nowDate = Factory::getDate()->toSql();
		$query   = $db->getQuery(true);
		$years   = $query->year($db->quoteName('c.created'));

$query->select('DISTINCT ' . $years)
			->from($db->quoteName('#__content', 'c'))
			->where($db->quoteName('c.state') . ' = ' . ContentComponent::CONDITION_ARCHIVED)
			->extendWhere(
				'AND',
				[
					$db->quoteName('c.publish_up') . ' IS NULL',
					$db->quoteName('c.publish_up') . ' <= :publishUp',
				],
				'OR'
			)
			->extendWhere(
				'AND',
				[
					$db->quoteName('c.publish_down') . ' IS NULL',
					$db->quoteName('c.publish_down') . ' >= :publishDown',
				],
				'OR'
			)
			->bind(':publishUp', $nowDate)
			->bind(':publishDown', $nowDate)
			->order('1 ASC');

$db->setQuery($query);

return $db->loadColumn();
	}

/**
	 * Generate column expression for slug or catslug.
	 *
	 * @param   \JDatabaseQuery  $query  Current query instance.
	 * @param   string           $id     Column id name.
	 * @param   string           $alias  Column alias name.
	 *
	 * @return  string
	 *
	 * @since   4.0.0
	 */
	private function getSlugColumn($query, $id, $alias)
	{
		$db = $this->getDbo();

return 'CASE WHEN '
			. $query->charLength($db->quoteName($alias), '!=', '0')
			. ' THEN '
			. $query->concatenate([$query->castAsChar($db->quoteName($id)), $db->quoteName($alias)], ':')
			. ' ELSE '
			. $query->castAsChar($id) . ' END';
	}
}