feat: GetManga endpoint + tests

src/Domain/Manga/Application/Query/GetManga.php

@@ -0,0 +1,10 @@
+<?php
+
+namespace App\Domain\Manga\Application\Query;
+
+readonly class GetManga
+{
+    public function __construct(
+        public string $id
+    ) {}
+} 

src/Domain/Manga/Application/QueryHandler/GetMangaHandler.php

@@ -0,0 +1,38 @@
+<?php
+
+namespace App\Domain\Manga\Application\QueryHandler;
+
+use App\Domain\Manga\Application\Query\GetManga;
+use App\Domain\Manga\Application\Response\MangaResponse;
+use App\Domain\Manga\Domain\Contract\Repository\MangaRepositoryInterface;
+use App\Domain\Manga\Domain\Exception\MangaNotFoundException;
+
+readonly class GetMangaHandler
+{
+    public function __construct(
+        private MangaRepositoryInterface $mangaRepository
+    ) {}
+
+    public function handle(GetManga $query): MangaResponse
+    {
+        $manga = $this->mangaRepository->findById($query->id);
+
+        if (!$manga) {
+            throw new MangaNotFoundException();
+        }
+
+        return new MangaResponse(
+            id: $manga->getId()->getValue(),
+            title: $manga->getTitle()->getValue(),
+            slug: $manga->getSlug()->getValue(),
+            description: $manga->getDescription(),
+            author: $manga->getAuthor(),
+            publicationYear: $manga->getPublicationYear(),
+            genres: $manga->getGenres(),
+            status: $manga->getStatus(),
+            externalId: $manga->getExternalId()?->getValue(),
+            imageUrl: $manga->getImageUrl(),
+            rating: $manga->getRating()
+        );
+    }
+} 

src/Domain/Manga/Application/Response/MangaResponse.php

@@ -0,0 +1,20 @@
+<?php
+
+namespace App\Domain\Manga\Application\Response;
+
+readonly class MangaResponse
+{
+    public function __construct(
+        public string $id,
+        public string $title,
+        public string $slug,
+        public string $description,
+        public string $author,
+        public int $publicationYear,
+        public array $genres,
+        public string $status,
+        public ?string $externalId,
+        public ?string $imageUrl,
+        public ?float $rating
+    ) {}
+} 

src/Domain/Manga/Domain/Exception/MangaDomainException.php

@@ -2,6 +2,8 @@
 
 namespace App\Domain\Manga\Domain\Exception;
 
-class MangaDomainException extends \DomainException
+use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
+
+class MangaDomainException extends NotFoundHttpException
 {
 } 

src/Domain/Manga/Domain/Exception/MangaNotFoundException.php

@@ -0,0 +1,11 @@
+<?php
+
+namespace App\Domain\Manga\Domain\Exception;
+
+class MangaNotFoundException extends MangaDomainException
+{
+    public function __construct()
+    {
+        parent::__construct('Manga not found');
+    }
+} 

src/Domain/Manga/Infrastructure/ApiPlatform/Dto/MangaDetail.php

@@ -0,0 +1,23 @@
+<?php
+
+namespace App\Domain\Manga\Infrastructure\ApiPlatform\Dto;
+
+use ApiPlatform\Metadata\ApiProperty;
+
+readonly class MangaDetail
+{
+    public function __construct(
+        #[ApiProperty(identifier: true)]
+        public string $id,
+        public string $title,
+        public string $slug,
+        public string $description,
+        public string $author,
+        public int $publicationYear,
+        public array $genres,
+        public string $status,
+        public ?string $externalId,
+        public ?string $imageUrl,
+        public ?float $rating
+    ) {}
+} 

src/Domain/Manga/Infrastructure/ApiPlatform/Resource/MangaResource.php

@@ -0,0 +1,22 @@
+<?php
+
+namespace App\Domain\Manga\Infrastructure\ApiPlatform\Resource;
+
+use ApiPlatform\Metadata\ApiResource;
+use ApiPlatform\Metadata\Get;
+use App\Domain\Manga\Infrastructure\ApiPlatform\Dto\MangaDetail;
+use App\Domain\Manga\Infrastructure\ApiPlatform\State\Provider\GetMangaStateProvider;
+
+#[ApiResource(
+    shortName: 'Manga',
+    operations: [
+        new Get(
+            uriTemplate: '/mangas/{id}',
+            provider: GetMangaStateProvider::class,
+            output: MangaDetail::class
+        )
+    ]
+)]
+class MangaResource
+{
+} 

src/Domain/Manga/Infrastructure/ApiPlatform/State/Provider/GetMangaStateProvider.php

@@ -0,0 +1,36 @@
+<?php
+
+namespace App\Domain\Manga\Infrastructure\ApiPlatform\State\Provider;
+
+use ApiPlatform\Metadata\Operation;
+use ApiPlatform\State\ProviderInterface;
+use App\Domain\Manga\Application\Query\GetManga;
+use App\Domain\Manga\Application\QueryHandler\GetMangaHandler;
+use App\Domain\Manga\Infrastructure\ApiPlatform\Dto\MangaDetail;
+
+readonly class GetMangaStateProvider implements ProviderInterface
+{
+    public function __construct(
+        private GetMangaHandler $handler
+    ) {}
+
+    public function provide(Operation $operation, array $uriVariables = [], array $context = []): MangaDetail
+    {
+        $query = new GetManga($uriVariables['id']);
+        $response = $this->handler->handle($query);
+
+        return new MangaDetail(
+            id: $response->id,
+            title: $response->title,
+            slug: $response->slug,
+            description: $response->description,
+            author: $response->author,
+            publicationYear: $response->publicationYear,
+            genres: $response->genres,
+            status: $response->status,
+            externalId: $response->externalId,
+            imageUrl: $response->imageUrl,
+            rating: $response->rating
+        );
+    }
+} 

tests/Domain/Manga/Application/QueryHandler/GetMangaHandlerTest.php

@@ -0,0 +1,75 @@
+<?php
+
+namespace App\Tests\Domain\Manga\Application\QueryHandler;
+
+use App\Domain\Manga\Application\Query\GetManga;
+use App\Domain\Manga\Application\QueryHandler\GetMangaHandler;
+use App\Domain\Manga\Domain\Exception\MangaNotFoundException;
+use App\Domain\Manga\Domain\Model\Manga;
+use App\Domain\Manga\Domain\Model\ValueObject\ExternalId;
+use App\Domain\Manga\Domain\Model\ValueObject\MangaId;
+use App\Domain\Manga\Domain\Model\ValueObject\MangaSlug;
+use App\Domain\Manga\Domain\Model\ValueObject\MangaTitle;
+use App\Tests\Domain\Manga\Adapter\InMemoryMangaRepository;
+use PHPUnit\Framework\TestCase;
+
+class GetMangaHandlerTest extends TestCase
+{
+    private InMemoryMangaRepository $repository;
+    private GetMangaHandler $handler;
+
+    protected function setUp(): void
+    {
+        $this->repository = new InMemoryMangaRepository();
+        $this->handler = new GetMangaHandler($this->repository);
+    }
+
+    public function testHandleThrowsExceptionWhenMangaNotFound(): void
+    {
+        $this->expectException(MangaNotFoundException::class);
+        
+        $query = new GetManga('non-existent-id');
+        $this->handler->handle($query);
+    }
+
+    public function testHandleReturnsMangaResponse(): void
+    {
+        // Arrange
+        $manga = new Manga(
+            new MangaId('123'),
+            new MangaTitle('One Piece'),
+            new MangaSlug('one-piece'),
+            'Description test',
+            'Eiichiro Oda',
+            1997,
+            ['action', 'adventure'],
+            'ongoing',
+            new ExternalId('external-123'),
+            'http://example.com/image.jpg',
+            4.5
+        );
+        $this->repository->save($manga);
+
+        // Act
+        $query = new GetManga('123');
+        $response = $this->handler->handle($query);
+
+        // Assert
+        $this->assertEquals('123', $response->id);
+        $this->assertEquals('One Piece', $response->title);
+        $this->assertEquals('one-piece', $response->slug);
+        $this->assertEquals('Description test', $response->description);
+        $this->assertEquals('Eiichiro Oda', $response->author);
+        $this->assertEquals(1997, $response->publicationYear);
+        $this->assertEquals(['action', 'adventure'], $response->genres);
+        $this->assertEquals('ongoing', $response->status);
+        $this->assertEquals('external-123', $response->externalId);
+        $this->assertEquals('http://example.com/image.jpg', $response->imageUrl);
+        $this->assertEquals(4.5, $response->rating);
+    }
+
+    protected function tearDown(): void
+    {
+        $this->repository->clear();
+    }
+} 

tests/Feature/Manga/GetMangaTest.php

@@ -0,0 +1,63 @@
+<?php
+
+namespace App\Tests\Feature\Manga;
+
+use App\Entity\Manga;
+use App\Tests\Feature\AbstractApiTestCase;
+use Zenstruck\Foundry\Test\ResetDatabase;
+
+class GetMangaTest extends AbstractApiTestCase
+{
+    use ResetDatabase;
+
+    public function testGetNonExistentManga(): void
+    {
+        // When
+        $client = static::createClient();
+        $response = $client->request('GET', '/api/mangas/999');
+
+        // Then
+        $this->assertResponseStatusCodeSame(404);
+    }
+
+    public function testGetExistingManga(): void
+    {
+        // Given
+        $manga = new Manga();
+        $manga->setTitle('One Piece')
+            ->setSlug('one-piece')
+            ->setDescription('Test description')
+            ->setAuthor('Eiichiro Oda')
+            ->setPublicationYear(1997)
+            ->setGenres(['action', 'adventure'])
+            ->setStatus('ongoing')
+            ->setExternalId('external-123')
+            ->setImageUrl('http://example.com/image.jpg')
+            ->setRating(4.5)
+            ->setMonitored(true);
+
+        $entityManager = static::getContainer()->get('doctrine')->getManager();
+        $entityManager->persist($manga);
+        $entityManager->flush();
+
+        // When
+        $client = static::createClient();
+        $response = $client->request('GET', '/api/mangas/' . $manga->getId());
+
+        // Then
+        $this->assertResponseIsSuccessful();
+        $this->assertJsonContains([
+            'id' => (string) $manga->getId(),
+            'title' => 'One Piece',
+            'slug' => 'one-piece',
+            'description' => 'Test description',
+            'author' => 'Eiichiro Oda',
+            'publicationYear' => 1997,
+            'genres' => ['action', 'adventure'],
+            'status' => 'ongoing',
+            'externalId' => 'external-123',
+            'imageUrl' => 'http://example.com/image.jpg',
+            'rating' => 4.5
+        ]);
+    }
+}