<?php

declare(strict_types=1);

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

use ApiPlatform\Metadata\GetCollection;
use App\Administration\Domain\Model\SchoolClass\AcademicYearId;
use App\Administration\Domain\Model\SchoolClass\ClassId;
use App\Administration\Domain\Model\SchoolClass\ClassName;
use App\Administration\Domain\Model\SchoolClass\ClassStatus;
use App\Administration\Domain\Model\SchoolClass\SchoolClass;
use App\Administration\Domain\Model\SchoolClass\SchoolId;
use App\Administration\Domain\Model\Subject\Subject;
use App\Administration\Domain\Model\Subject\SubjectCode;
use App\Administration\Domain\Model\Subject\SubjectId;
use App\Administration\Domain\Model\Subject\SubjectName;
use App\Administration\Domain\Model\Subject\SubjectStatus;
use App\Administration\Domain\Model\User\UserId;
use App\Administration\Infrastructure\Persistence\InMemory\InMemoryClassRepository;
use App\Administration\Infrastructure\Persistence\InMemory\InMemorySubjectRepository;
use App\Administration\Infrastructure\Security\SecurityUser;
use App\Scolarite\Application\Query\GetReplacedClassesForTeacher\GetReplacedClassesForTeacherHandler;
use App\Scolarite\Domain\Model\TeacherReplacement\ClassSubjectPair;
use App\Scolarite\Domain\Model\TeacherReplacement\TeacherReplacement;
use App\Scolarite\Infrastructure\Api\Provider\ReplacedClassesProvider;
use App\Scolarite\Infrastructure\Api\Resource\ReplacedClassResource;
use App\Scolarite\Infrastructure\Persistence\InMemory\InMemoryTeacherReplacementRepository;
use App\Shared\Domain\Clock;
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\Bundle\SecurityBundle\Security;
use Symfony\Component\HttpKernel\Exception\UnauthorizedHttpException;

final class ReplacedClassesProviderTest extends TestCase
{
    private const string TENANT_UUID = '550e8400-e29b-41d4-a716-446655440001';
    private const string REPLACED_TEACHER_ID = '550e8400-e29b-41d4-a716-446655440010';
    private const string REPLACEMENT_TEACHER_ID = '550e8400-e29b-41d4-a716-446655440011';
    private const string CLASS_ID = '550e8400-e29b-41d4-a716-446655440020';
    private const string SUBJECT_ID = '550e8400-e29b-41d4-a716-446655440030';
    private const string CREATED_BY_ID = '550e8400-e29b-41d4-a716-446655440099';
    private const string SCHOOL_ID = '550e8400-e29b-41d4-a716-446655440040';
    private const string ACADEMIC_YEAR_ID = '550e8400-e29b-41d4-a716-446655440041';

    private InMemoryTeacherReplacementRepository $repository;
    private InMemoryClassRepository $classRepository;
    private InMemorySubjectRepository $subjectRepository;
    private TenantContext $tenantContext;
    private Clock $clock;

    protected function setUp(): void
    {
        $this->repository = new InMemoryTeacherReplacementRepository();
        $this->classRepository = new InMemoryClassRepository();
        $this->subjectRepository = new InMemorySubjectRepository();
        $this->tenantContext = new TenantContext();
        $this->clock = new class implements Clock {
            public function now(): DateTimeImmutable
            {
                return new DateTimeImmutable('2026-03-15 10:00:00');
            }
        };

        $this->seedClassesAndSubjects();
    }

    #[Test]
    public function itProvidesReplacedClassesForAuthenticatedTeacher(): void
    {
        $provider = $this->createProvider(self::REPLACEMENT_TEACHER_ID);
        $this->setTenant();

        $replacement = $this->createReplacement();
        $this->repository->save($replacement);

        $result = $provider->provide(new GetCollection());

        self::assertCount(1, $result);
        self::assertContainsOnlyInstancesOf(ReplacedClassResource::class, $result);
        self::assertSame((string) $replacement->id, $result[0]->replacementId);
        self::assertSame(self::REPLACED_TEACHER_ID, $result[0]->replacedTeacherId);
        self::assertSame(self::CLASS_ID, $result[0]->classId);
        self::assertSame(self::SUBJECT_ID, $result[0]->subjectId);
    }

    #[Test]
    public function itReturnsEmptyWhenNoReplacements(): void
    {
        $provider = $this->createProvider(self::REPLACEMENT_TEACHER_ID);
        $this->setTenant();

        $result = $provider->provide(new GetCollection());

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

    #[Test]
    public function itThrowsWhenUserNotAuthenticated(): void
    {
        $security = $this->createMock(Security::class);
        $security->method('getUser')->willReturn(null);

        $handler = new GetReplacedClassesForTeacherHandler(
            $this->repository,
            $this->classRepository,
            $this->subjectRepository,
            $this->clock,
        );

        $provider = new ReplacedClassesProvider($handler, $this->tenantContext, $security);
        $this->setTenant();

        $this->expectException(UnauthorizedHttpException::class);
        $this->expectExceptionMessage('Authentification requise.');
        $provider->provide(new GetCollection());
    }

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

        $this->expectException(UnauthorizedHttpException::class);
        $this->expectExceptionMessage('Tenant non défini.');
        $provider->provide(new GetCollection());
    }

    private function setTenant(): void
    {
        $this->tenantContext->setCurrentTenant(new TenantConfig(
            tenantId: InfraTenantId::fromString(self::TENANT_UUID),
            subdomain: 'test',
            databaseUrl: 'sqlite:///:memory:',
        ));
    }

    private function createProvider(string $userId): ReplacedClassesProvider
    {
        $securityUser = new SecurityUser(
            UserId::fromString($userId),
            'teacher@test.com',
            'hashed',
            TenantId::fromString(self::TENANT_UUID),
            ['ROLE_PROF'],
        );

        $security = $this->createMock(Security::class);
        $security->method('getUser')->willReturn($securityUser);

        $handler = new GetReplacedClassesForTeacherHandler(
            $this->repository,
            $this->classRepository,
            $this->subjectRepository,
            $this->clock,
        );

        return new ReplacedClassesProvider($handler, $this->tenantContext, $security);
    }

    private function seedClassesAndSubjects(): void
    {
        $tenantId = TenantId::fromString(self::TENANT_UUID);
        $schoolId = SchoolId::fromString(self::SCHOOL_ID);
        $academicYearId = AcademicYearId::fromString(self::ACADEMIC_YEAR_ID);
        $now = new DateTimeImmutable('2026-01-01');

        $class = SchoolClass::reconstitute(
            ClassId::fromString(self::CLASS_ID), $tenantId, $schoolId, $academicYearId,
            new ClassName('6ème A'), null, null,
            ClassStatus::ACTIVE,
            null, $now, $now, null,
        );
        $this->classRepository->save($class);

        $subject = Subject::reconstitute(
            SubjectId::fromString(self::SUBJECT_ID), $tenantId, $schoolId,
            new SubjectName('Mathématiques'), new SubjectCode('MATH'), null,
            SubjectStatus::ACTIVE, null, $now, $now, null,
        );
        $this->subjectRepository->save($subject);
    }

    private function createReplacement(): TeacherReplacement
    {
        return TeacherReplacement::designer(
            tenantId: TenantId::fromString(self::TENANT_UUID),
            replacedTeacherId: UserId::fromString(self::REPLACED_TEACHER_ID),
            replacementTeacherId: UserId::fromString(self::REPLACEMENT_TEACHER_ID),
            startDate: new DateTimeImmutable('2026-03-01'),
            endDate: new DateTimeImmutable('2026-03-31'),
            classes: [
                new ClassSubjectPair(
                    ClassId::fromString(self::CLASS_ID),
                    SubjectId::fromString(self::SUBJECT_ID),
                ),
            ],
            reason: null,
            createdBy: UserId::fromString(self::CREATED_BY_ID),
            now: new DateTimeImmutable('2026-02-15 10:00:00'),
        );
    }
}