<?php

/**
 * Kunena QuickIcon Plugin
 *
 * @package         Kunena.Plugins
 * @subpackage      QuickIcon
 *
 * @copyright       Copyright (C) 2008 - 2026 Kunena Team. All rights reserved.
 * @license         https://www.gnu.org/copyleft/gpl.html GNU/GPL
 * @link            https://www.kunena.org
 **/

namespace Kunena\Forum\Plugin\Quickicon\Kunena\Extension;

\defined('_JEXEC') or die();

use Joomla\CMS\Language\Text;
use Joomla\CMS\Plugin\CMSPlugin;
use Joomla\Database\DatabaseAwareInterface;
use Joomla\Database\DatabaseAwareTrait;
use Joomla\Database\DatabaseDriver;
use Joomla\Event\SubscriberInterface;
use Joomla\Module\Quickicon\Administrator\Event\QuickIconsEvent;
use Kunena\Forum\Libraries\Factory\KunenaFactory;
use Kunena\Forum\Libraries\Forum\KunenaForum;

/**
 * Class plgQuickiconKunena
 *
 * @since  Kunena 6.0
 */
final class Kunena extends CMSPlugin implements SubscriberInterface, DatabaseAwareInterface
{
    use DatabaseAwareTrait;

    /**
     * Load the language file on instantiation.
     *
     * @var    boolean
     * @since  3.1
     */
    protected $autoloadLanguage = true;

    /**
     * Returns an array of events this subscriber will listen to.
     *
     * @return  array
     *
     * @since   7.0.0
     */
    public static function getSubscribedEvents(): array
    {
        return [
            'onGetIcons' => 'onGetIcons',
        ];
    }

    /**
     * Display Kunena backend icon in Joomla 4.0
     *
     * @param   QuickIconsEvent  $context  context
     *
     * @return array
     * @since   Kunena 6.0
     *
     * @throws \Exception
     */
    public function onGetIcons(QuickIconsEvent $event): void
    {
        $app = $this->getApplication();
        $context = $event->getContext();

        if ($context != $this->params->get('context', 'mod_quickicon') || !$app->getIdentity()->authorise('core.manage', 'com_kunena')) {
            return;
        }

        KunenaFactory::loadLanguage('com_kunena.sys', 'admin');

        $updateInfo = null;

        if (KunenaForum::installed() && $app->getIdentity()->authorise('core.manage', 'com_installer')) {
            $updateSite = 'https://update.kunena.org/%';
            /** @var DatabaseDriver $db */
            $db         = $this->getDatabase();

            $query = $db->createQuery()
                ->select('*')
                ->from($db->quoteName('#__updates'))
                ->where($db->quoteName('extension_id') . ' > 0')
                ->where($db->quoteName('detailsurl') . ' LIKE ' . $db->quote($updateSite));
            $db->setQuery($query);
            $list = (array) $db->loadObjectList();

            if ($list) {
                $updateInfo          = new \stdClass();
                $updateInfo->addons  = 0;
                $updateInfo->version = 0;

                foreach ($list as $item) {
                    if ($item->element == 'pkg_kunena') {
                        $updateInfo->version = $item->version;
                    } else {
                        $updateInfo->addons++;
                    }
                }
            } else {
                $query = $db->createQuery()
                    ->select('update_site_id')
                    ->from($db->quoteName('#__update_sites'))
                    ->where($db->quoteName('enabled') . ' = 0')
                    ->where($db->quoteName('location') . ' LIKE ' . $db->quote($updateSite));
                $db->setQuery($query);
                $updateInfo = !$db->loadResult();
            }
        }

        $link = 'index.php?option=com_kunena';

        $useIcons = \version_compare(JVERSION, '3.0', '>');

        if (!KunenaForum::installed()) {
            $icon = 'fas fa-exclamation-triangle';

            // Not fully installed
            $img   = $useIcons ? $icon : 'kunena/icons/icon-48-kupdate-alert-white.png';
            $icon  = 'kunena/icons/icon-48-kupdate-alert-white.png';
            $text  = Text::_('PLG_QUICKICON_KUNENA_COMPLETE_INSTALLATION');
            $class = 'pulse warning';
        } elseif ($updateInfo === null) {
            // Unsupported
            $icon = 'fas fa-remove';

            $img   = $useIcons ? $icon : 'kunena/icons/kunena-logo-48-white.png';
            $icon  = 'kunena/icons/kunena-logo-48-white.png';
            $text  = Text::_('COM_KUNENA');
            $class = 'pulse error';
        } elseif ($updateInfo === false) {
            // Disabled
            $icon = 'fas fa-minus-circle';

            $img   = $useIcons ? $icon : 'kunena/icons/icon-48-kupdate-alert-white.png';
            $icon  = 'kunena/icons/icon-48-kupdate-alert-white.png';
            $text  = Text::_('COM_KUNENA') . '<br />' . Text::_('PLG_QUICKICON_KUNENA_UPDATE_DISABLED');
            $class = 'pulse error';
        } elseif (!empty($updateInfo->version) && \version_compare(KunenaForum::version(), $updateInfo->version, '<')) {
            // Has updates
            $icon = 'fas fa-download';

            $img   = $useIcons ? $icon : 'kunena/icons/icon-48-kupdate-update-white.png';
            $icon  = 'kunena/icons/icon-48-kupdate-update-white.png';
            $text  = 'Kunena ' . $updateInfo->version . '<br />' . Text::_('PLG_QUICKICON_KUNENA_UPDATE_NOW');
            $link  = 'index.php?option=com_installer&view=update&filter_search=kunena';
            $class = 'pulse warning';
        } elseif (!empty($updateInfo->addons)) {
            // Has updated add-ons
            $icon = 'fas fa-download';

            $img   = $useIcons ? $icon : 'kunena/icons/icon-48-kupdate-update-white.png';
            $icon  = 'kunena/icons/icon-48-kupdate-update-white.png';
            $text  = Text::_('COM_KUNENA') . '<br />' . Text::sprintf('PLG_QUICKICON_KUNENA_UPDATE_ADDONS', $updateInfo->addons);
            $link  = 'index.php?option=com_installer&view=update&filter_search=kunena';
            $class = 'pulse warning';
        } else {
            $icon = 'fas fa-comments';

            $img   = $useIcons ? $icon : 'kunena/icons/icon-48-kupdate-good-white.png';
            $icon  = 'kunena/icons/icon-48-kupdate-good-white.png';
            $text  = Text::_('COM_KUNENA');
            $class = 'pulse success';
        }

        // Use one line in J!4.0.
        $text = \preg_replace('|<br />|', ' - ', $text);

        $iconDefinition = [
            'link'  => $link,
            'image' => $img,
            'icon'  => $icon,
            'text'  => $text,
            'class' => $class,
            'id'    => 'plg_quickicon_kunena',
            'group' => 'update_quickicon',
        ];

        // Add the icon to the result array
        $result = $event->getArgument('result', []);

        $result[] = [
            $iconDefinition,
        ];

        $event->setArgument('result', $result);
    }
}