ldc-arcadia-api/tests/Unit/Domain/Services/BrandResolverTest.php

<?php

declare(strict_types=1);

namespace Tests\Unit\Domain\Services;

use Domain\Events\BrandCreated;
use Domain\Events\BrandRenamed;
use Domain\Exceptions\BrandNotFoundException;
use Domain\Models\Entities\Brand;
use Domain\Models\ValueObjects\Brand\ArcadiaBrand;
use Domain\Models\ValueObjects\Brand\ArcadiaId;
use Domain\Models\ValueObjects\Brand\BrandCode;
use Domain\Models\ValueObjects\Brand\BrandId;
use Domain\Models\ValueObjects\Brand\BrandName;
use Domain\Services\BrandCodeGenerator;
use Domain\Services\BrandResolver;
use Infra\Adapters\Directories\InMemoryArcadiaBrandDirectory;
use Infra\Adapters\Repositories\InMemoryBrandRepository;
use Ramsey\Uuid\Uuid;
use Shared\DDD\Event\DomainEventDispatcher;
use Shared\DDD\Event\Event;

covers(BrandResolver::class);

describe('BrandResolver Unit Tests', function (): void {
    $arcadiaDirectory = new InMemoryArcadiaBrandDirectory();
    $brandRepository  = new InMemoryBrandRepository();
    $codeGenerator    = new BrandCodeGenerator();

    beforeEach(function () use ($arcadiaDirectory, $brandRepository): void {
        $arcadiaDirectory->clear();
        $brandRepository->clear();
    });

    it('returns existing brand if already present in repository without dispatching event', function () use ($arcadiaDirectory, $brandRepository, $codeGenerator): void {
        // GIVEN
        $existing = Brand::hydrate(
            id: new BrandId(Uuid::uuid7()),
            name: new BrandName('Le Gaulois'),
            code: new BrandCode('LGL01'),
            arcadiaId: new ArcadiaId('1'),
        );
        $brandRepository->add($existing);

        $dispatcher = new class () implements DomainEventDispatcher
        {
            /** @var list<Event> */
            public array $dispatched = [];

            public function dispatch(Event $event): void
            {
                $this->dispatched[] = $event;
            }
        };

        $resolver = new BrandResolver($arcadiaDirectory, $brandRepository, $codeGenerator, $dispatcher);

        // WHEN
        $resolved = $resolver->resolve(new ArcadiaId('1'));

        // THEN
        expect($resolved)->toBe($existing)
            ->and($dispatcher->dispatched)->toBeEmpty();
    });

    it('generates, persists and dispatches BrandCreated event when brand is not in repository but in Arcadia directory', function () use ($arcadiaDirectory, $brandRepository, $codeGenerator): void {
        // GIVEN
        $arcadiaDirectory->add(new ArcadiaBrand(new ArcadiaId('2'), new BrandName('Maître CoQ')));

        $dispatcher = new class () implements DomainEventDispatcher
        {
            /** @var list<Event> */
            public array $dispatched = [];

            public function dispatch(Event $event): void
            {
                $this->dispatched[] = $event;
            }
        };

        $resolver = new BrandResolver($arcadiaDirectory, $brandRepository, $codeGenerator, $dispatcher);

        // WHEN
        $resolved = $resolver->resolve(new ArcadiaId('2'));

        // THEN
        expect($resolved->arcadiaId->value)->toBe('2')
            ->and($resolved->name->value)->toBe('Maître CoQ')
            ->and(str_starts_with($resolved->code->value, 'MCQ'))->toBeTrue();

        expect($brandRepository->findByArcadiaId(new ArcadiaId('2')))->not->toBeNull();

        expect($dispatcher->dispatched)->toHaveCount(1)
            ->and($dispatcher->dispatched[0])->toBeInstanceOf(BrandCreated::class);

        /** @var BrandCreated $event */
        $event = $dispatcher->dispatched[0];
        expect($event->arcadiaId->value)->toBe('2')
            ->and($event->brandName->value)->toBe('Maître CoQ')
            ->and($event->brandCode->value)->toBe($resolved->code->value)
            ->and($event->brandId->value)->toBe($resolved->id->value);
    });

    it('throws BrandNotFoundException when resolving an unknown ArcadiaId', function () use ($arcadiaDirectory, $brandRepository, $codeGenerator): void {
        // GIVEN
        $dispatcher = new class () implements DomainEventDispatcher
        {
            public function dispatch(Event $event): void
            {
            }
        };

        $resolver = new BrandResolver($arcadiaDirectory, $brandRepository, $codeGenerator, $dispatcher);

        // WHEN & THEN
        expect(fn () => $resolver->resolve(new ArcadiaId('999')))
            ->toThrow(BrandNotFoundException::class, 'Arcadia brand with ID 999 not found.');
    });

    it('updates brand name, persists and dispatches BrandRenamed when Arcadia brand name changes', function () use ($arcadiaDirectory, $brandRepository, $codeGenerator): void {
        // GIVEN
        $brandId  = new BrandId(Uuid::uuid7());
        $oldBrand = Brand::hydrate(
            id: $brandId,
            name: new BrandName('Le Gaulois'),
            code: new BrandCode('LGL01'),
            arcadiaId: new ArcadiaId('1'),
        );
        $brandRepository->add($oldBrand);

        // Arcadia has renamed the brand
        $arcadiaDirectory->add(new ArcadiaBrand(new ArcadiaId('1'), new BrandName('Le Gaulois France')));

        $dispatcher = new class () implements DomainEventDispatcher
        {
            /** @var list<Event> */
            public array $dispatched = [];

            public function dispatch(Event $event): void
            {
                $this->dispatched[] = $event;
            }
        };

        $resolver = new BrandResolver($arcadiaDirectory, $brandRepository, $codeGenerator, $dispatcher);

        // WHEN
        $resolved = $resolver->resolve(new ArcadiaId('1'));

        // THEN
        expect($resolved->name->value)->toBe('Le Gaulois France')
            ->and($resolved->id()->value)->toBe($brandId->value)
            ->and($resolved->code->value)->toBe('LGL01');

        $persisted = $brandRepository->findByArcadiaId(new ArcadiaId('1'));
        expect($persisted)->not->toBeNull()
            ->and($persisted->name->value)->toBe('Le Gaulois France');

        expect($dispatcher->dispatched)->toHaveCount(1)
            ->and($dispatcher->dispatched[0])->toBeInstanceOf(BrandRenamed::class);

        /** @var \Domain\Events\BrandRenamed $event */
        $event = $dispatcher->dispatched[0];
        expect($event->oldName->value)->toBe('Le Gaulois')
            ->and($event->newName->value)->toBe('Le Gaulois France')
            ->and($event->brandId->value)->toBe($brandId->value);
    });

    it('preserves and returns existing brand when brand was removed from Arcadia directory', function () use ($arcadiaDirectory, $brandRepository, $codeGenerator): void {
        // GIVEN
        $brandId  = new BrandId(Uuid::uuid7());
        $existing = Brand::hydrate(
            id: $brandId,
            name: new BrandName('Historical Brand'),
            code: new BrandCode('HST01'),
            arcadiaId: new ArcadiaId('77'),
        );
        $brandRepository->add($existing);

        // Arcadia directory does NOT have brand 77 (deleted/purged amont)
        // $arcadiaDirectory is empty for 77

        $dispatcher = new class () implements DomainEventDispatcher
        {
            /** @var list<Event> */
            public array $dispatched = [];

            public function dispatch(Event $event): void
            {
                $this->dispatched[] = $event;
            }
        };

        $resolver = new BrandResolver($arcadiaDirectory, $brandRepository, $codeGenerator, $dispatcher);

        // WHEN
        $resolved = $resolver->resolve(new ArcadiaId('77'));

        // THEN
        expect($resolved)->toBe($existing)
            ->and($resolved->name->value)->toBe('Historical Brand')
            ->and($dispatcher->dispatched)->toBeEmpty();
    });
});