feat: fragment messages to gain efficiency

src/MessageHandler/ProcessDomainTriggerHandler.php

@@ -0,0 +1,81 @@
+<?php
+
+namespace App\MessageHandler;
+
+use App\Config\TriggerAction;
+use App\Entity\Domain;
+use App\Entity\DomainEvent;
+use App\Entity\User;
+use App\Entity\WatchList;
+use App\Entity\WatchListTrigger;
+use App\Message\ProcessDomainTrigger;
+use App\Repository\DomainRepository;
+use App\Repository\WatchListRepository;
+use Exception;
+use Symfony\Bridge\Twig\Mime\TemplatedEmail;
+use Symfony\Component\Mailer\Exception\TransportExceptionInterface;
+use Symfony\Component\Mailer\MailerInterface;
+use Symfony\Component\Messenger\Attribute\AsMessageHandler;
+use Symfony\Component\Mime\Email;
+
+#[AsMessageHandler]
+final readonly class ProcessDomainTriggerHandler
+{
+    public function __construct(
+        private string              $mailerSenderEmail,
+        private MailerInterface     $mailer,
+        private WatchListRepository $watchListRepository,
+        private DomainRepository    $domainRepository,
+
+    )
+    {
+    }
+
+    /**
+     * @throws TransportExceptionInterface
+     * @throws Exception
+     */
+    public function __invoke(ProcessDomainTrigger $message): void
+    {
+        /** @var WatchList $watchList */
+        $watchList = $this->watchListRepository->findOneBy(["token" => $message->watchListToken]);
+        /** @var Domain $domain */
+        $domain = $this->domainRepository->findOneBy(["ldhName" => $message->ldhName]);
+
+        /** @var DomainEvent $event */
+        foreach ($domain->getEvents()->filter(fn($event) => $message->updatedAt < $event->getDate()) as $event) {
+            $watchListTriggers = $watchList->getWatchListTriggers()
+                ->filter(fn($trigger) => $trigger->getEvent() === $event->getAction());
+
+            /** @var WatchListTrigger $watchListTrigger */
+            foreach ($watchListTriggers->getIterator() as $watchListTrigger) {
+
+                switch ($watchListTrigger->getAction()) {
+                    case TriggerAction::SendEmail:
+                        $this->sendEmailDomainUpdated($event, $watchList->getUser());
+                }
+            }
+        }
+    }
+
+
+    /**
+     * @throws TransportExceptionInterface
+     */
+    private function sendEmailDomainUpdated(DomainEvent $domainEvent, User $user): void
+    {
+        $email = (new TemplatedEmail())
+            ->from($this->mailerSenderEmail)
+            ->to($user->getEmail())
+            ->priority(Email::PRIORITY_HIGHEST)
+            ->subject('A domain name has been changed')
+            ->htmlTemplate('emails/domain_updated.html.twig')
+            ->locale('en')
+            ->context([
+                "event" => $domainEvent
+            ]);
+
+        $this->mailer->send($email);
+    }
+
+}