<?php

namespace Drupalhello_worldEventSubscriber;

use DrupalCoreSessionAccountProxyInterface;
use SymfonyComponentEventDispatcherEventSubscriberInterface;
//use SymfonyComponentHttpFoundationRedirectResponse;
use SymfonyComponentHttpKernelEventGetResponseEvent;
use DrupalCoreRoutingcurrentRouteMatch;
use DrupalCoreRoutingLocalRedirectResponse;
use SymfonyComponentHttpKernelKernelEvents;
use DrupalCoreUrl;


/**
 * Subscribers to the Kernel Request event and redirects to the
 * homepage when the user has the "non_grata" role.
 */
class HelloWorldRedirectSubscriber implements EventSubscriberInterface {

  /**
   *  @var DrupalCoreSessionAccountProxyInterface
   */
  protected $currentUser; // Store the current user as a class property

  /**
   * HelloWorldRedirectSubscriber constructor.
   *
   * @param DrupalCoreSessionAccountProxyInterface $currentUser
   */
  public function __construct(AccountProxyInterface $currentUser) {
    $this->currentUser = $currentUser;
  }

  /**
   * {@inheritdoc}
   */
  public static function getSubscribedEvents() {
    // $events['kernel.request'][] = ['onRequest', 0];
    // più elegante:
    $events[KernelEvents::REQUEST][] = ['onRequest', 0];
    return $events;
  }

  /**
   * Handler for the kernel request event.
   *
   * @param SymfonyComponentHttpKernelEventGetResponseEvent $event
   */

  public function onRequest(GetResponseEvent $event) {
    //$request = $event->getRequest();
    //$path = $request->getPathInfo();
    // if ($path !== '/hello')
    // {
    //   return;
    // } BEST PRACTICE FOR KEEP DYNAMICITY: currentRouteMatch Service
    $route_name = $this->currentRouteMatch->getRouteName();

    // check against the route name (and not path name)
    if ($route_name !== 'hello_world.hello')
    {
      return;
    }

    $roles = $this->currentUser->getRoles();

    if (in_array('inaccettabile', $roles)) {
      // $event->setResponse(new RedirectResponse('/'));
      $url = Url::fromUri('internal:/');
      // LocalRedirectResponse class redirect the user to a local (safe) path
      $event->setResponse(new LocalRedirectResponse($url->toString()));
    }
  }
}