<?php
/**
 * @package DJ-Catalog2
 * @copyright Copyright (C) DJ-Extensions.com, All rights reserved.
 * @license http://www.gnu.org/licenses GNU/GPL
 * @author url: http://dj-extensions.com
 * @author email contact@dj-extensions.com
 */

defined('_JEXEC') or die;
use Joomla\CMS\Factory;
use Joomla\CMS\MVC\Model\ListModel;
use Joomla\CMS\Language\Associations;
/**
 * Messages Component Messages Model
 *
 * @since  1.6
 */
class DJCatalog2ModelTemplates extends ListModel
{
	/**
	 * Constructor.
	 *
	 * @param   array  $config  An optional associative array of configuration settings.
	 *
	 * @see     JController
	 * @since   1.6
	 */
	public function __construct($config = array())
	{
		if (empty($config['filter_fields']))
		{
			$config['filter_fields'] = array(
				'id', 'a.id',
				'subject', 'a.subject',
				'state', 'a.state'
			);
		}

		parent::__construct($config);
	}

	/**
	 * Method to auto-populate the model state.
	 *
	 * This method should only be called once per instantiation and is designed
	 * to be called on the first call to the getState() method unless the model
	 * configuration flag to ignore the request is set.
	 *
	 * Note. Calling getState in this method will result in recursion.
	 *
	 * @param   string  $ordering   An optional ordering field.
	 * @param   string  $direction  An optional direction (asc|desc).
	 *
	 * @return  void
	 *
	 * @since   1.6
	 */
	protected function populateState($ordering = 'a.name', $direction = 'asc')
	{
		// Load the filter state.
		$this->setState('filter.search', $this->getUserStateFromRequest($this->context . '.filter.search', 'filter_search', '', 'string'));

		$this->setState('filter.state', $this->getUserStateFromRequest($this->context . '.filter.state', 'filter_state', '', 'cmd'));

		$this->setState('filter.template_group', $this->getUserStateFromRequest($this->context . '.filter.template_group', 'filter_template_group', '', 'cmd'));

		// List state information.
		parent::populateState($ordering, $direction);
	}

	/**
	 * Method to get a store id based on model configuration state.
	 *
	 * This is necessary because the model is used by the component and
	 * different modules that might need different sets of data or different
	 * ordering requirements.
	 *
	 * @param   string  $id  A prefix for the store id.
	 *
	 * @return  string    A store id.
	 *
	 * @since   1.6
	 */
	protected function getStoreId($id = '')
	{
		// Compile the store id.
		$id .= ':' . $this->getState('filter.search');
		$id .= ':' . $this->getState('filter.state');
		$id .= ':' . $this->getState('filter.template_group');


		return parent::getStoreId($id);
	}

	/**
	 * Build an SQL query to load the list data.
	 *
	 * @return  JDatabaseQuery
	 *
	 * @since   1.6
	 */
	protected function getListQuery()
	{
		// Create a new query object.
		$db = $this->getDbo();
		$query = $db->getQuery(true);
		$user = Factory::getUser();

		// Select the required fields from the table.
		$query->select(
			$this->getState(
				'list.select',
				'a.*'
			)
		);
		$query->from('#__djc2_message_templates AS a');

		// Filter by published state.
		$state = $this->getState('filter.state');

		if (is_numeric($state))
		{
			$query->where('a.state = ' . (int) $state);
		}
		elseif ($state !== '*')
		{
			$query->where('(a.state IN (0, 1))');
		}

		// Filter by search in subject or message.


		$search = $this->getState('filter.search');
		if (!empty($search))
		{
			$search = $db->quote('%' . str_replace(' ', '%', $db->escape(trim((string)$search), true) . '%'));
			$query->where('(a.name LIKE ' . $search . ' OR a.type LIKE ' . $search.')');
		}

		// Filter by template group
		$template_group = $this->getState('filter.template_group');
		if(!empty($template_group)) {
			$query->where('a.template_group = ' . $db->quote($template_group));
		}

		if (Associations::isEnabled()) {
			/*$query->select('COUNT(asso2.id)>1 as association')
			 ->join('LEFT', '#__associations AS asso ON asso.id = a.id AND asso.context=' . $db->quote('com_djcatalog2.item'))
			 ->join('LEFT', '#__associations AS asso2 ON asso2.key = asso.key')
			 ->group('a.id');*/

			$subQuery = $db->getQuery(true)
				->select('COUNT(' . $db->quoteName('asso1.id') . ') > 1')
				->from($db->quoteName('#__associations', 'asso1'))
				->join('INNER', $db->quoteName('#__associations', 'asso2') . ' ON ' . $db->quoteName('asso1.key') . ' = ' . $db->quoteName('asso2.key'))
				->where(
					array(
						$db->quoteName('asso1.id') . ' = ' . $db->quoteName('a.id'),
						$db->quoteName('asso1.context') . ' = ' . $db->quote('com_djcatalog2.template'),
					)
				);
			$query->select('(' . $subQuery . ') AS ' . $db->quoteName('association'));
		}



		// Add the list ordering clause.
		$query->order($db->escape($this->getState('list.ordering', 'a.name')) . ' ' . $db->escape($this->getState('list.direction', 'asc')));

		return $query;
	}
}