<?php

declare(strict_types=1);

namespace App\Administration\Infrastructure\Api\Processor;

use ApiPlatform\Metadata\Operation;
use ApiPlatform\State\ProcessorInterface;
use App\Administration\Application\Command\ChangeStudentClass\ChangeStudentClassCommand;
use App\Administration\Application\Command\ChangeStudentClass\ChangeStudentClassHandler;
use App\Administration\Domain\Exception\ClasseNotFoundException;
use App\Administration\Domain\Repository\ClassRepository;
use App\Administration\Infrastructure\Api\Resource\StudentResource;
use App\Administration\Infrastructure\Security\StudentVoter;
use App\Administration\Infrastructure\Service\CurrentAcademicYearResolver;
use App\Shared\Infrastructure\Tenant\TenantContext;
use Override;
use Symfony\Component\HttpKernel\Exception\AccessDeniedHttpException;
use Symfony\Component\HttpKernel\Exception\BadRequestHttpException;
use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
use Symfony\Component\HttpKernel\Exception\UnauthorizedHttpException;
use Symfony\Component\Messenger\MessageBusInterface;
use Symfony\Component\Security\Core\Authorization\AuthorizationCheckerInterface;

/**
 * @implements ProcessorInterface<StudentResource, StudentResource>
 */
final readonly class ChangeStudentClassProcessor implements ProcessorInterface
{
    public function __construct(
        private ChangeStudentClassHandler $handler,
        private ClassRepository $classRepository,
        private TenantContext $tenantContext,
        private MessageBusInterface $eventBus,
        private AuthorizationCheckerInterface $authorizationChecker,
        private CurrentAcademicYearResolver $academicYearResolver,
    ) {
    }

    /**
     * @param StudentResource $data
     */
    #[Override]
    public function process(mixed $data, Operation $operation, array $uriVariables = [], array $context = []): StudentResource
    {
        if (!$this->authorizationChecker->isGranted(StudentVoter::MANAGE)) {
            throw new AccessDeniedHttpException('Vous n\'êtes pas autorisé à changer la classe d\'un élève.');
        }

        if (!$this->tenantContext->hasTenant()) {
            throw new UnauthorizedHttpException('Bearer', 'Tenant non défini.');
        }

        $tenantId = (string) $this->tenantContext->getCurrentTenantId();
        /** @var string $studentId */
        $studentId = $uriVariables['id'] ?? '';
        $academicYearId = $this->academicYearResolver->resolve('current')
            ?? throw new BadRequestHttpException('Impossible de résoudre l\'année scolaire courante.');

        try {
            $command = new ChangeStudentClassCommand(
                tenantId: $tenantId,
                studentId: $studentId,
                newClassId: $data->classId ?? '',
                academicYearId: $academicYearId,
            );

            $assignment = ($this->handler)($command);

            // Dispatch domain events
            foreach ($assignment->pullDomainEvents() as $event) {
                $this->eventBus->dispatch($event);
            }

            // Update the resource with new class info
            $newClass = $this->classRepository->get($assignment->classId);
            $data->classId = (string) $assignment->classId;
            $data->className = (string) $newClass->name;
            $data->classLevel = $newClass->level?->value;

            return $data;
        } catch (ClasseNotFoundException $e) {
            throw new NotFoundHttpException($e->getMessage());
        }
    }
}