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<?php
/**
 * Joomla! Content Management System
 *
 * @copyright  (C) 2013 Open Source Matters, Inc. <https://www.joomla.org>
 * @license    GNU General Public License version 2 or later; see LICENSE.txt
 */

namespace Joomla\CMS\Helper;

\defined('JPATH_PLATFORM') or die;

use Joomla\CMS\Application\ApplicationHelper;
use Joomla\CMS\Component\ComponentHelper;
use Joomla\CMS\Factory;
use Joomla\CMS\Language\LanguageHelper;
use Joomla\CMS\Language\Multilanguage;
use Joomla\CMS\Plugin\PluginHelper;
use Joomla\CMS\Table\TableInterface;
use Joomla\Registry\Registry;

/**
 * Base Helper class.
 *
 * @since  3.2
 */
class CMSHelper
{
	/**
	 * Gets the current language
	 *
	 * @param   boolean  $detectBrowser  Flag indicating whether to use the browser language as a fallback.
	 *
	 * @return  string  The language string
	 *
	 * @since   3.2
	 */
	public function getCurrentLanguage($detectBrowser = true)
	{
		$app = Factory::getApplication();
		$langCode = null;

// Get the languagefilter parameters
		if (Multilanguage::isEnabled())
		{
			$plugin       = PluginHelper::getPlugin('system', 'languagefilter');
			$pluginParams = new Registry($plugin->params);

if ((int) $pluginParams->get('lang_cookie', 1) === 1)
			{
				$langCode = $app->input->cookie->getString(ApplicationHelper::getHash('language'));
			}
			else
			{
				$langCode = $app->getSession()->get('plg_system_languagefilter.language');
			}
		}

// No cookie - let's try to detect browser language or use site default
		if (!$langCode)
		{
			if ($detectBrowser)
			{
				$langCode = LanguageHelper::detectLanguage();
			}
			else
			{
				$langCode = ComponentHelper::getParams('com_languages')->get('site', 'en-GB');
			}
		}

return $langCode;
	}

/**
	 * Gets the associated language ID
	 *
	 * @param   string  $langCode  The language code to look up
	 *
	 * @return  integer  The language ID
	 *
	 * @since   3.2
	 */
	public function getLanguageId($langCode)
	{
		$db    = Factory::getDbo();
		$query = $db->getQuery(true)
			->select($db->quoteName('lang_id'))
			->from($db->quoteName('#__languages'))
			->where($db->quoteName('lang_code') . ' = :language')
			->bind(':language', $langCode);
		$db->setQuery($query);

return $db->loadResult();
	}

/**
	 * Gets a row of data from a table
	 *
	 * @param   TableInterface  $table  Table instance for a row.
	 *
	 * @return  array  Associative array of all columns and values for a row in a table.
	 *
	 * @since   3.2
	 */
	public function getRowData(TableInterface $table)
	{
		$fields = $table->getFields();
		$data = array();

foreach ($fields as &$field)
		{
			$columnName = $field->Field;
			$value = $table->$columnName;
			$data[$columnName] = $value;
		}

return $data;
	}

/**
	 * Method to get an object containing all of the table columns and values.
	 *
	 * @param   TableInterface  $table  Table object.
	 *
	 * @return  \stdClass  Contains all of the columns and values.
	 *
	 * @since   3.2
	 */
	public function getDataObject(TableInterface $table)
	{
		$fields = $table->getFields();
		$dataObject = new \stdClass;

foreach ($fields as $field)
		{
			$fieldName = $field->Field;
			$dataObject->$fieldName = $table->get($fieldName);
		}

return $dataObject;
	}
}