src/EventsSubscriber/System/PostHogSubscriber.php line 47

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  1. <?php
  3. declare(strict_types=1);
  5. namespace App\EventsSubscriber\System;
  7. use PostHog\PostHog;
  8. use Symfony\Component\Console\ConsoleEvents;
  9. use Symfony\Component\Console\Event\ConsoleCommandEvent;
  10. use Symfony\Component\EventDispatcher\EventSubscriberInterface;
  11. use Symfony\Component\HttpKernel\Event\RequestEvent;
  12. use Symfony\Component\HttpKernel\Event\TerminateEvent;
  13. use Symfony\Component\HttpKernel\KernelEvents;
  15. /**
  16.  * Boots the PostHog PHP SDK from config/packages/posthog.yaml and flushes queued events at the end of each request.
  17.  */
  18. final class PostHogSubscriber implements EventSubscriberInterface
  19. {
  20.     private bool $initialized = false;
  22.     public function __construct(
  23.         private readonly string $apiKey,
  24.         private readonly string $host,
  25.         private readonly bool $debug,
  26.     ) {
  27.     }
  29.     public static function getSubscribedEvents(): array
  30.     {
  31.         return [
  32.             KernelEvents::REQUEST => ['onKernelRequest', 1024],
  33.             KernelEvents::TERMINATE => 'onKernelTerminate',
  34.             ConsoleEvents::COMMAND => ['onConsoleCommand', 1024],
  35.         ];
  36.     }
  38.     public function onKernelRequest(RequestEvent $event): void
  39.     {
  40.         if (!$event->isMainRequest()) {
  41.             return;
  42.         }
  44.         $this->initialize();
  45.     }
  47.     public function onConsoleCommand(ConsoleCommandEvent $event): void
  48.     {
  49.         $this->initialize();
  50.     }
  52.     public function onKernelTerminate(TerminateEvent $event): void
  53.     {
  54.         if (!$this->initialized) {
  55.             return;
  56.         }
  58.         PostHog::flush();
  59.     }
  61.     private function initialize(): void
  62.     {
  63.         if ($this->initialized) {
  64.             return;
  65.         }
  67.         PostHog::init(
  68.             $this->apiKey !== '' ? $this->apiKey : null,
  69.             [
  70.                 'host' => $this->host,
  71.                 'debug' => $this->debug,
  72.             ],
  73.         );
  75.         $this->initialized = true;
  76.     }
  77. }