<?php

/**
 * @package     Joomla.Administrator
 * @subpackage  com_messages
 *
 * @copyright   (C) 2008 Open Source Matters, Inc. <https://www.joomla.org>
 * @license     GNU General Public License version 2 or later; see LICENSE.txt
 */

namespace Joomla\Component\Messages\Administrator\View\Messages;

use Joomla\CMS\Factory;
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\Toolbar\Toolbar;
use Joomla\CMS\Toolbar\ToolbarHelper;

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

/**
 * View class for a list of messages.
 *
 * @since  1.6
 */
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\CMS\Object\CMSObject
     */
    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  $tpl  The name of the template file to parse; automatically searches through the template paths.
     *
     * @return  void
     *
     * @since   1.6
     */
    public function display($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');

        if (!\count($this->items) && $this->isEmptyState = $this->get('IsEmptyState')) {
            $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()
    {
        $state = $this->get('State');
        $canDo = ContentHelper::getActions('com_messages');
        $user  = Factory::getApplication()->getIdentity();

        // Get the toolbar object instance
        $toolbar = Toolbar::getInstance('toolbar');

        ToolbarHelper::title(Text::_('COM_MESSAGES_MANAGER_MESSAGES'), 'envelope inbox');

        // Only display the New button if the user has the access level to create a message and if they have access to the list of users
        if ($canDo->get('core.create') && $user->authorise('core.manage', 'com_users')) {
            $toolbar->addNew('message.add');
        }

        if (!$this->isEmptyState && $canDo->get('core.edit.state')) {
            $dropdown = $toolbar->dropdownButton('status-group')
                ->text('JTOOLBAR_CHANGE_STATUS')
                ->toggleSplit(false)
                ->icon('icon-ellipsis-h')
                ->buttonClass('btn btn-action')
                ->listCheck(true);

            $childBar = $dropdown->getChildToolbar();

            $childBar->publish('messages.publish')
                ->text('COM_MESSAGES_TOOLBAR_MARK_AS_READ')
                ->listCheck(true);

            $childBar->unpublish('messages.unpublish')
                ->text('COM_MESSAGES_TOOLBAR_MARK_AS_UNREAD')
                ->listCheck(true);

            if ($this->state->get('filter.state') != -2) {
                $childBar->trash('messages.trash')->listCheck(true);
            }
        }

        $toolbar->appendButton('Link', 'cog', 'COM_MESSAGES_TOOLBAR_MY_SETTINGS', 'index.php?option=com_messages&amp;view=config');
        ToolbarHelper::divider();

        if (!$this->isEmptyState && $this->state->get('filter.state') == -2 && $canDo->get('core.delete')) {
            $toolbar->delete('messages.delete')
                ->text('JTOOLBAR_EMPTY_TRASH')
                ->message('JGLOBAL_CONFIRM_DELETE')
                ->listCheck(true);
        }

        if ($canDo->get('core.admin')) {
            $toolbar->preferences('com_messages');
        }

        $toolbar->help('Private_Messages');
    }
}