<?php

/**
 * @package     Joomla.Administrator
 * @subpackage  com_users
 *
 * @copyright   (C) 2009 Open Source Matters, Inc. <https://www.joomla.org>
 * @license     GNU General Public License version 2 or later; see LICENSE.txt
 */

namespace Joomla\Component\Users\Administrator\View\Levels;

use Joomla\CMS\Helper\ContentHelper;
use Joomla\CMS\Language\Text;
use Joomla\CMS\MVC\View\GenericDataException;
use Joomla\CMS\MVC\View\HtmlView as BaseHtmlView;
use Joomla\CMS\Object\CMSObject;
use Joomla\CMS\Toolbar\ToolbarHelper;

/**
 * View class for a list of view levels.
 *
 * @since  1.6
 */
class HtmlView extends BaseHtmlView
{
    /**
     * The item data.
     *
     * @var   object
     * @since 1.6
     */
    protected $items;

    /**
     * The pagination object.
     *
     * @var   \Joomla\CMS\Pagination\Pagination
     * @since 1.6
     */
    protected $pagination;

    /**
     * The model state.
     *
     * @var   CMSObject
     * @since 1.6
     */
    protected $state;

    /**
     * Form object for search filters
     *
     * @var    \Joomla\CMS\Form\Form
     *
     * @since  4.0.0
     */
    public $filterForm;

    /**
     * The active search filters
     *
     * @var    array
     * @since  4.0.0
     */
    public $activeFilters;

    /**
     * Display the view
     *
     * @param   string  $tpl  The name of the template file to parse; automatically searches through the template paths.
     *
     * @return  void
     */
    public function display($tpl = null)
    {
        $this->items         = $this->get('Items');
        $this->pagination    = $this->get('Pagination');
        $this->state         = $this->get('State');
        $this->filterForm    = $this->get('FilterForm');
        $this->activeFilters = $this->get('ActiveFilters');

        // Check for errors.
        if (count($errors = $this->get('Errors'))) {
            throw new GenericDataException(implode("\n", $errors), 500);
        }

        $this->addToolbar();
        parent::display($tpl);
    }

    /**
     * Add the page title and toolbar.
     *
     * @return void
     *
     * @since   1.6
     */
    protected function addToolbar()
    {
        $canDo = ContentHelper::getActions('com_users');

        ToolbarHelper::title(Text::_('COM_USERS_VIEW_LEVELS_TITLE'), 'user-lock levels');

        if ($canDo->get('core.create')) {
            ToolbarHelper::addNew('level.add');
        }

        if ($canDo->get('core.delete')) {
            ToolbarHelper::deleteList('JGLOBAL_CONFIRM_DELETE', 'level.delete', 'JTOOLBAR_DELETE');
            ToolbarHelper::divider();
        }

        if ($canDo->get('core.admin') || $canDo->get('core.options')) {
            ToolbarHelper::preferences('com_users');
            ToolbarHelper::divider();
        }

        ToolbarHelper::help('Users:_Viewing_Access_Levels');
    }
}
