<?php
/**
 * @package     Joomla.Site
 * @subpackage  mod_articles_news
 *
 * @copyright   Copyright (C) 2005 - 2016 Open Source Matters, Inc. All rights reserved.
 * @license     GNU General Public License version 2 or later; see LICENSE.txt
 */

defined('_JEXEC') or die;

require_once JPATH_SITE . '/components/com_content/helpers/route.php';

JModelLegacy::addIncludePath(JPATH_SITE . '/components/com_content/models', 'ContentModel');

/**
 * Helper for mod_articles_news
 *
 * @package     Joomla.Site
 * @subpackage  mod_articles_news
 *
 * @since       1.6
 */
abstract class ModArticlesNewsHelper
{
	/**
	 * Get a list of the latest articles from the article model
	 *
	 * @param   \Joomla\Registry\Registry  &$params  object holding the models parameters
	 *
	 * @return  mixed
	 *
	 * @since 1.6
	 */
	public static function getList(&$params)
	{
		// Get an instance of the generic articles model
		$model = JModelLegacy::getInstance('Articles', 'ContentModel', array('ignore_request' => true));

		// Set application parameters in model
		$app       = JFactory::getApplication();
		$appParams = $app->getParams();
		$model->setState('params', $appParams);

		// Set the filters based on the module params
		$model->setState('list.start', 0);
		$model->setState('list.limit', (int) $params->get('count', 5));
		$model->setState('filter.published', 1);

		// Access filter
		$access     = !JComponentHelper::getParams('com_content')->get('show_noauth');
		$authorised = JAccess::getAuthorisedViewLevels(JFactory::getUser()->get('id'));
		$model->setState('filter.access', $access);

		// Category filter
		$model->setState('filter.category_id', $params->get('catid', array()));

		// Filter by language
		$model->setState('filter.language', $app->getLanguageFilter());

		// Set ordering
		$ordering = $params->get('ordering', 'a.publish_up');
		$model->setState('list.ordering', $ordering);

		if (trim($ordering) == 'rand()')
		{
			$model->setState('list.ordering', JFactory::getDbo()->getQuery(true)->Rand());
		}
		else
		{
			$direction = $params->get('direction', 1) ? 'DESC' : 'ASC';
			$model->setState('list.direction', $direction);
			$model->setState('list.ordering', $ordering);
		}

		// Retrieve Content
		$items = $model->getItems();

		foreach ($items as &$item)
		{
			$item->readmore = strlen(trim($item->fulltext));
			$item->slug     = $item->id . ':' . $item->alias;
			$item->catslug  = $item->catid . ':' . $item->category_alias;

			if ($access || in_array($item->access, $authorised))
			{
				// We know that user has the privilege to view the article
				$item->link     = JRoute::_(ContentHelperRoute::getArticleRoute($item->slug, $item->catid, $item->language));
				$item->linkText = JText::_('MOD_ARTICLES_NEWS_READMORE');
			}
			else
			{
				$item->link = new JUri(JRoute::_('index.php?option=com_users&view=login', false));
				$item->link->setVar('return', base64_encode(ContentHelperRoute::getArticleRoute($item->slug, $item->catid, $item->language)));
				$item->linkText = JText::_('MOD_ARTICLES_NEWS_READMORE_REGISTER');
			}

			$item->introtext = JHtml::_('content.prepare', $item->introtext, '', 'mod_articles_news.content');

			if (!$params->get('image'))
			{
				$item->introtext = preg_replace('/<img[^>]*>/', '', $item->introtext);
			}

			$results                 = $app->triggerEvent('onContentAfterTitle', array('com_content.article', &$item, &$params, 1));
			$item->afterDisplayTitle = trim(implode("\n", $results));

			$results                    = $app->triggerEvent('onContentBeforeDisplay', array('com_content.article', &$item, &$params, 1));
			$item->beforeDisplayContent = trim(implode("\n", $results));

			$results                 = $app->triggerEvent('onContentAfterDisplay', array('com_content.article', &$item, &$params, 1));
			$item->afterDisplayContent = trim(implode("\n", $results));
		}

		return $items;
	}
}
