/**
     * Updates site page routes with all routes available in Symfony router service
     *
     * @param SiteInterface   $site   A page bundle site instance
     * @param OutputInterface $output A Symfony console output
     *
     * @return void
     */
    public function update(SiteInterface $site, OutputInterface $output = null)
    {
        $message = sprintf(" > <info>Updating core routes for site</info> : <comment>%s - %s</comment>", $site->getName(), $site->getUrl());
        $this->writeln($output, array(str_repeat('=', strlen($message)), "", $message, "", str_repeat('=', strlen($message))));
        $knowRoutes = array();
        $root = $this->pageManager->getPageByUrl($site, '/');
        // no root url for the given website, create one
        if (!$root) {
            $root = $this->pageManager->create(array('routeName' => PageInterface::PAGE_ROUTE_CMS_NAME, 'name' => 'Homepage', 'url' => '/', 'site' => $site, 'requestMethod' => isset($requirements['_method']) ? $requirements['_method'] : 'GET|POST|HEAD|DELETE|PUT', 'slug' => '/'));
            $this->pageManager->save($root);
        }
        // Iterate over declared routes from the routing mechanism
        foreach ($this->router->getRouteCollection()->all() as $name => $route) {
            $name = trim($name);
            $knowRoutes[] = $name;
            $page = $this->pageManager->findOneBy(array('routeName' => $name, 'site' => $site->getId()));
            $routeHostRegex = $route->compile()->getHostRegex();
            if (!$this->decoratorStrategy->isRouteNameDecorable($name) || !$this->decoratorStrategy->isRouteUriDecorable($route->getPath()) || null !== $routeHostRegex && !preg_match($routeHostRegex, $site->getHost())) {
                if ($page) {
                    $page->setEnabled(false);
                    $this->writeln($output, sprintf('  <error>DISABLE</error> <error>% -50s</error> %s', $name, $route->getPath()));
                } else {
                    continue;
                }
            }
            $update = true;
            if (!$page) {
                $update = false;
                $requirements = $route->getRequirements();
                $page = $this->pageManager->create(array('routeName' => $name, 'name' => $name, 'url' => $route->getPath(), 'site' => $site, 'requestMethod' => isset($requirements['_method']) ? $requirements['_method'] : 'GET|POST|HEAD|DELETE|PUT'));
            }
            if (!$page->getParent() && $page->getId() != $root->getId()) {
                $page->setParent($root);
            }
            $page->setSlug($route->getPath());
            $page->setUrl($route->getPath());
            $page->setRequestMethod(isset($requirements['_method']) ? $requirements['_method'] : 'GET|POST|HEAD|DELETE|PUT');
            $this->pageManager->save($page);
            $this->writeln($output, sprintf('  <info>%s</info> % -50s %s', $update ? 'UPDATE ' : 'CREATE ', $name, $route->getPath()));
        }
        // Iterate over error pages
        foreach ($this->exceptionListener->getHttpErrorCodes() as $name) {
            $name = trim($name);
            $knowRoutes[] = $name;
            $page = $this->pageManager->findOneBy(array('routeName' => $name, 'site' => $site->getId()));
            if (!$page) {
                $params = array('routeName' => $name, 'name' => $name, 'decorate' => false, 'site' => $site);
                $page = $this->pageManager->create($params);
                $this->writeln($output, sprintf('  <info>%s</info> % -50s %s', 'CREATE ', $name, ''));
            }
            // an internal page or an error page should not have any parent (no direct access)
            $page->setParent(null);
            $this->pageManager->save($page);
        }
        $has = false;
        foreach ($this->pageManager->getHybridPages($site) as $page) {
            if (!$page->isHybrid() || $page->isInternal()) {
                continue;
            }
            if (!in_array($page->getRouteName(), $knowRoutes)) {
                if (!$has) {
                    $has = true;
                    $this->writeln($output, array('', 'Some hybrid pages does not exist anymore', str_repeat('-', 80)));
                }
                $this->writeln($output, sprintf('  <error>ERROR</error>   %s', $page->getRouteName()));
            }
        }
        if ($has) {
            $this->writeln($output, <<<MSG
<error>
  *WARNING* : Pages has been updated however some pages do not exist anymore.
              You must remove them manually.
</error>
MSG
);
        }
    }