<?php

/**
 * Kunena Component
 *
 * @package         Kunena.Site
 * @subpackage      Dispatcher
 *
 * @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\Site\Dispatcher;

use Joomla\CMS\Dispatcher\ComponentDispatcher;
use Joomla\CMS\Factory;
use Joomla\CMS\Language\Text;
use Joomla\CMS\Log\Log;
use Joomla\CMS\Plugin\PluginHelper;
use Joomla\CMS\Uri\Uri;
use Kunena\Forum\Libraries\Config\KunenaConfig;
use Kunena\Forum\Libraries\Controller\KunenaController;
use Kunena\Forum\Libraries\Controller\KunenaControllerApplication;
use Kunena\Forum\Libraries\Error\KunenaError;
use Kunena\Forum\Libraries\Factory\KunenaFactory;
use Kunena\Forum\Libraries\Forum\KunenaForum;
use Kunena\Forum\Libraries\Profiler\KunenaProfiler;
use Kunena\Forum\Libraries\Route\KunenaRoute;
use Kunena\Forum\Libraries\User\KunenaUserHelper;
use Kunena\Forum\Libraries\User\KunenaUserSocials;

\defined('_JEXEC') or die;

/**
 * ComponentDispatcher class for com_kunena
 *
 * @since  6.0.0
 */
class Dispatcher extends ComponentDispatcher
{
    /**
     * The URL option for the component.
     *
     * @var    string
     */
    public $option = 'com_kunena';

    /**
     * Dispatch a controller task. Redirecting the user if appropriate.
     *
     * @return  void
     *
     * @throws \Exception
     * @since   6.0.0
     */
    public function dispatch()
    {
        $this->checkIfInstalled();

        // Display time it took to create the entire page in the footer.
        $kunena_profiler = KunenaProfiler::instance('Kunena');
        $kunena_profiler->start('Total Time');
        KUNENA_PROFILER ? $kunena_profiler->mark('afterLoad') : null;

        $this->checkAccess();

        // Initialize Kunena Framework.
        KunenaForum::setup();

        // Initialize custom error handlers.
        KunenaError::initialize();

        // Initialize session.
        $ksession = KunenaFactory::getSession(true);

        if ($ksession->userid > 0) {
            // Create user if it does not exist
            $kuser = KunenaUserHelper::getMyself();

            if (!$kuser->exists()) {
                $kuser->save();
            }

            // Save session
            if (!$ksession->save()) {
                Factory::getApplication()->enqueueMessage(Text::_('COM_KUNENA_ERROR_SESSION_SAVE_FAILED'), 'error');
            }
        }

        KunenaUserSocials::addSocialsParams();

        $app   = Factory::getApplication();
        $input = $app->getInput();
        $input->set('limitstart', $input->getInt('limitstart', $input->getInt('start')));
        $view    = $input->getWord('func', $input->getWord('view', 'home'));
        $subview = $input->getWord('layout', 'default');
        $task    = $input->getCmd('task', 'display');

        // Import plugins and event listeners.
        PluginHelper::importPlugin('kunena');

        // Get HMVC controller and if exists, execute it.
        $controller = KunenaControllerApplication::getInstance($view, $subview, $task, $input, $app);

        if ($controller) {
            $contents = $controller->execute();
        } elseif (class_exists('Kunena\Forum\Site\Controllers\\' . ucfirst($view) . 'Controller')) {
            // Execute old MVC.
            // Legacy support: If the content layout doesn't exist on HMVC, load and execute the old controller.
            $controller = KunenaController::getInstance();
            ob_start();
            $controller->execute($task);
            $contents = ob_get_clean();
            $controller->redirect();
        } else {
            // Legacy URL support.
            $uri = KunenaRoute::current(true);

            if ($uri) {
                // FIXME: using wrong Itemid
                Factory::getApplication()->redirect(KunenaRoute::_($uri, false));
            } else {
                throw new \Exception("Kunena view '{$view}' not found", 404);
            }
        }

        // Prepare and display the output.
        $params       = new \stdClass();
        $params->text = '';
        Factory::getApplication()->triggerEvent('onKunenaBeforeRender', ["com_kunena.{$view}", &$contents]);
        $contents = (string) $contents;
        Factory::getApplication()->triggerEvent('onKunenaAfterRender', ["com_kunena.{$view}", &$contents]);
        echo $contents;

        // Remove custom error handlers.
        KunenaError::cleanup();

        // Display profiler information.
        if (KUNENA_PROFILER) {
            $kunena_profiler->stop('Total Time');

            echo '<div class="kprofiler">';
            echo "<h3>Kunena Profile Information</h3>";

            foreach ($kunena_profiler->getAll() as $item) {
                echo sprintf(
                    "Kunena %s: %0.3f / %0.3f seconds (%d calls)<br/>",
                    $item->name,
                    $item->getInternalTime(),
                    $item->getTotalTime(),
                    $item->calls
                );
            }

            echo '</div>';
        }
    }

    /**
     * Method to check if component is compatible and is installed
     *
     * @return  void
     *
     * @throws \Exception
     * @since   6.0.0
     */
    protected function checkIfInstalled()
    {
        // Display offline message if Kunena hasn't been fully installed.
        if (!KunenaForum::isCompatible('7.0') || !KunenaForum::installed()) {
            $lang = Factory::getApplication()->getLanguage();
            $lang->load('com_kunena.install', JPATH_ADMINISTRATOR . '/components/com_kunena', 'en-GB');
            $lang->load('com_kunena.install', JPATH_ADMINISTRATOR . '/components/com_kunena');
            Factory::getApplication()->setHeader('Status', '503 Service Temporarily Unavailable', true);
            Factory::getApplication()->sendHeaders();

?>
            <h2><?php echo Text::_('COM_KUNENA_INSTALL_OFFLINE_TOPIC') ?></h2>
            <div><?php echo Text::_('COM_KUNENA_INSTALL_OFFLINE_DESC') ?></div>
<?php

            return;
        }
    }

    /**
     * Method to check component access permission
     *
     * @return  void
     *
     * @throws \Exception
     * @since   6.0.0
     */
    protected function checkAccess()
    {
        // Prevent direct access to the component if the option has been disabled.
        if (!KunenaConfig::getInstance()->accessComponent) {
            $active = Factory::getApplication()->getMenu()->getActive();

            if (!$active) {
                // Prevent access without using a menu item.
                Log::add("Kunena: Direct access denied: " . Uri::getInstance()->toString(['path', 'query']), Log::WARNING, 'kunena');
                throw new \Exception(Text::_('JLIB_APPLICATION_ERROR_COMPONENT_NOT_FOUND'), 404);
            }

            if ($active->type != 'component' || $active->component != 'com_kunena') {
                // Prevent spoofed access by using random menu item.
                Log::add("Kunena: spoofed access denied: " . Uri::getInstance()->toString(['path', 'query']), Log::WARNING, 'kunena');
                throw new \Exception(Text::_('JLIB_APPLICATION_ERROR_COMPONENT_NOT_FOUND'), 404);
            }
        }
    }
}