<?php

declare(strict_types=1);

namespace App\Tests\Unit\Administration\Infrastructure\Api\Provider;

use ApiPlatform\Metadata\GetCollection;
use App\Administration\Application\Query\GetTeachersForClass\GetTeachersForClassHandler;
use App\Administration\Domain\Model\SchoolClass\AcademicYearId;
use App\Administration\Domain\Model\SchoolClass\ClassId;
use App\Administration\Domain\Model\Subject\SubjectId;
use App\Administration\Domain\Model\TeacherAssignment\TeacherAssignment;
use App\Administration\Domain\Model\User\UserId;
use App\Administration\Infrastructure\Api\Provider\TeacherAssignmentsByClassProvider;
use App\Administration\Infrastructure\Api\Resource\TeacherAssignmentResource;
use App\Administration\Infrastructure\Persistence\InMemory\InMemoryTeacherAssignmentRepository;
use App\Administration\Infrastructure\Security\TeacherAssignmentVoter;
use App\Shared\Domain\Tenant\TenantId;
use App\Shared\Infrastructure\Tenant\TenantConfig;
use App\Shared\Infrastructure\Tenant\TenantContext;
use App\Shared\Infrastructure\Tenant\TenantId as InfraTenantId;
use DateTimeImmutable;
use PHPUnit\Framework\Attributes\Test;
use PHPUnit\Framework\TestCase;
use Symfony\Component\HttpKernel\Exception\AccessDeniedHttpException;
use Symfony\Component\HttpKernel\Exception\UnauthorizedHttpException;
use Symfony\Component\Security\Core\Authorization\AuthorizationCheckerInterface;

final class TeacherAssignmentsByClassProviderTest extends TestCase
{
    private const string TENANT_ID = '550e8400-e29b-41d4-a716-446655440002';
    private const string CLASS_ID = '550e8400-e29b-41d4-a716-446655440020';
    private const string ACADEMIC_YEAR_ID = '550e8400-e29b-41d4-a716-446655440040';

    private InMemoryTeacherAssignmentRepository $repository;
    private TenantContext $tenantContext;

    protected function setUp(): void
    {
        $this->repository = new InMemoryTeacherAssignmentRepository();

        $this->tenantContext = new TenantContext();
        $this->tenantContext->setCurrentTenant(new TenantConfig(
            tenantId: InfraTenantId::fromString(self::TENANT_ID),
            subdomain: 'ecole-alpha',
            databaseUrl: 'postgresql://test',
        ));
    }

    #[Test]
    public function returnsTeachersForClass(): void
    {
        $this->createAndSaveAssignment('550e8400-e29b-41d4-a716-446655440010');
        $this->createAndSaveAssignment('550e8400-e29b-41d4-a716-446655440011');

        $provider = $this->createProvider();

        $results = $provider->provide(
            new GetCollection(),
            ['classId' => self::CLASS_ID],
        );

        self::assertCount(2, $results);
        self::assertContainsOnlyInstancesOf(TeacherAssignmentResource::class, $results);
    }

    #[Test]
    public function returnsEmptyArrayWhenNoTeachersAssigned(): void
    {
        $provider = $this->createProvider();

        $results = $provider->provide(
            new GetCollection(),
            ['classId' => self::CLASS_ID],
        );

        self::assertSame([], $results);
    }

    #[Test]
    public function throwsBadRequestForInvalidUuid(): void
    {
        $provider = $this->createProvider();

        $this->expectException(\Symfony\Component\HttpKernel\Exception\BadRequestHttpException::class);

        $provider->provide(
            new GetCollection(),
            ['classId' => 'not-a-uuid'],
        );
    }

    #[Test]
    public function throwsAccessDeniedWhenNotAuthorized(): void
    {
        $provider = $this->createProvider(authorized: false);

        $this->expectException(AccessDeniedHttpException::class);

        $provider->provide(
            new GetCollection(),
            ['classId' => self::CLASS_ID],
        );
    }

    #[Test]
    public function throwsUnauthorizedWhenNoTenant(): void
    {
        $tenantContext = new TenantContext();
        $provider = $this->createProvider(tenantContext: $tenantContext);

        $this->expectException(UnauthorizedHttpException::class);

        $provider->provide(
            new GetCollection(),
            ['classId' => self::CLASS_ID],
        );
    }

    private function createAndSaveAssignment(string $teacherId): void
    {
        $assignment = TeacherAssignment::creer(
            tenantId: TenantId::fromString(self::TENANT_ID),
            teacherId: UserId::fromString($teacherId),
            classId: ClassId::fromString(self::CLASS_ID),
            subjectId: SubjectId::fromString('550e8400-e29b-41d4-a716-446655440030'),
            academicYearId: AcademicYearId::fromString(self::ACADEMIC_YEAR_ID),
            createdAt: new DateTimeImmutable('2026-02-10 10:00:00'),
        );

        $this->repository->save($assignment);
    }

    private function createProvider(
        bool $authorized = true,
        ?TenantContext $tenantContext = null,
    ): TeacherAssignmentsByClassProvider {
        $handler = new GetTeachersForClassHandler($this->repository);

        $authorizationChecker = $this->createMock(AuthorizationCheckerInterface::class);
        $authorizationChecker->method('isGranted')
            ->with(TeacherAssignmentVoter::VIEW)
            ->willReturn($authorized);

        return new TeacherAssignmentsByClassProvider(
            $handler,
            $tenantContext ?? $this->tenantContext,
            $authorizationChecker,
        );
    }
}
