<?php

declare(strict_types=1);

/*
 * Chill is a software for social workers
 *
 * For the full copyright and license information, please view
 * the LICENSE file that was distributed with this source code.
 */

namespace Chill\TaskBundle\Event;

use Chill\MainBundle\Entity\Notification;
use Chill\TaskBundle\Entity\SingleTask;
use Chill\TaskBundle\Notification\AssignTaskNotificationFlagProvider;
use Doctrine\ORM\EntityManagerInterface;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;

readonly class TaskAssignEventSubscriber implements EventSubscriberInterface
{
    public function __construct(
        private EntityManagerInterface $entityManager,
        private \Twig\Environment $engine,
    ) {}

    public static function getSubscribedEvents(): array
    {
        return [
            AssignTaskEvent::PERSIST => ['onTaskAssigned', 0],
        ];
    }

    /**
     * Send a notification when a user is assigned to a task.
     *
     * The notification will be sent to the newly assigned user
     */
    public function onTaskAssigned(AssignTaskEvent $event): void
    {
        $task = $event->getTask();
        $assignedUser = $event->getAssignedUser();

        $title = $task->getTitle();

        $context = [
            'task' => $task,
            'assignedUser' => $assignedUser,
            'title' => $title,
        ];

        $notification = new Notification();
        $notification
            ->setRelatedEntityId($task->getId())
            ->setRelatedEntityClass(SingleTask::class)
            ->setTitle($this->engine->render('@ChillTask/Notification/task_assignment_notification_title.txt.twig', $context))
            ->setMessage($this->engine->render('@ChillTask/Notification/task_assignment_notification_content.txt.twig', $context))
            ->addAddressee($assignedUser)
            ->setType(AssignTaskNotificationFlagProvider::FLAG);

        $this->entityManager->persist($notification);
    }
}