<?php

/**
 * @package     Joomla.Administrator
 * @subpackage  com_checkin
 *
 * @copyright   (C) 2017 Open Source Matters, Inc. <https://www.joomla.org>
 * @license     GNU General Public License version 2 or later; see LICENSE.txt
 */

namespace Joomla\Component\Checkin\Administrator\View\Checkin;

use Joomla\CMS\Language\Text;
use Joomla\CMS\MVC\View\GenericDataException;
use Joomla\CMS\MVC\View\HtmlView as BaseHtmlView;
use Joomla\CMS\Toolbar\Toolbar;
use Joomla\CMS\Toolbar\ToolbarHelper;

// phpcs:disable PSR1.Files.SideEffects
\defined('_JEXEC') or die;
// phpcs:enable PSR1.Files.SideEffects

/**
 * HTML View class for the Checkin component
 *
 * @since  1.0
 */
class HtmlView extends BaseHtmlView
{
    /**
     * An array of items
     *
     * @var  array
     */
    protected $items;

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

    /**
     * The model state
     *
     * @var  \Joomla\Registry\Registry
     */
    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;

    /**
     * Is this view an Empty State
     *
     * @var   boolean
     *
     * @since 4.0.0
     */
    private $isEmptyState = false;

    /**
     * Execute and display a template script.
     *
     * @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->total         = $this->get('Total');
        $this->filterForm    = $this->get('FilterForm');
        $this->activeFilters = $this->get('ActiveFilters');

        if (!\count($this->items)) {
            $this->isEmptyState = true;
            $this->setLayout('emptystate');
        }

        // 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()
    {
        ToolbarHelper::title(Text::_('COM_CHECKIN_GLOBAL_CHECK_IN'), 'check-square');
        $toolbar    = Toolbar::getInstance();

        if (!$this->isEmptyState) {
            $toolbar->checkin('checkin');
        }

        if ($this->getCurrentUser()->authorise('core.admin', 'com_checkin')) {
            $toolbar->divider();
            $toolbar->preferences('com_checkin');
            $toolbar->divider();
        }

        $toolbar->help('Maintenance:_Global_Check-in');
    }
}
