class JsonApiFunctionalMultilingualTest

class JsonApiFunctionalMultilingualTest extends JsonApiFunctionalTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected static $modules = [
        'language',
        'content_translation',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        $language = ConfigurableLanguage::createFromLangcode('ca');
        $language->save();
        ConfigurableLanguage::createFromLangcode('ca-fr')->save();
        // In order to reflect the changes for a multilingual site in the container
        // we have to rebuild it.
        $this->rebuildContainer();
        \Drupal::configFactory()->getEditable('language.negotiation')
            ->set('url.prefixes.ca', 'ca')
            ->set('url.prefixes.ca-fr', 'ca-fr')
            ->save();
        ContentLanguageSettings::create([
            'target_entity_type_id' => 'node',
            'target_bundle' => 'article',
        ])->setThirdPartySetting('content_translation', 'enabled', TRUE)
            ->save();
        $this->createDefaultContent(5, 5, TRUE, TRUE, static::IS_MULTILINGUAL, FALSE);
    }
    
    /**
     * Tests reading multilingual content.
     */
    public function testReadMultilingual() : void {
        // Different databases have different sort orders, so a sort is required so
        // test expectations do not need to vary per database.
        $default_sort = [
            'sort' => 'drupal_internal__nid',
        ];
        // Test reading an individual entity translation.
        $output = Json::decode($this->drupalGet('/ca/jsonapi/node/article/' . $this->nodes[0]
            ->uuid(), [
            'query' => [
                'include' => 'field_tags,field_image',
            ] + $default_sort,
        ]));
        $this->assertEquals($this->nodes[0]
            ->getTranslation('ca')
            ->getTitle(), $output['data']['attributes']['title']);
        $this->assertSame('ca', $output['data']['attributes']['langcode']);
        $included_tags = array_filter($output['included'], function ($entry) {
            return $entry['type'] === 'taxonomy_term--tags';
        });
        $tag_name = $this->nodes[0]
            ->get('field_tags')->entity
            ->getTranslation('ca')
            ->getName();
        $this->assertEquals($tag_name, reset($included_tags)['attributes']['name']);
        $alt = $this->nodes[0]
            ->getTranslation('ca')
            ->get('field_image')->alt;
        $this->assertSame($alt, $output['data']['relationships']['field_image']['data']['meta']['alt']);
        // Test reading an individual entity fallback.
        $output = Json::decode($this->drupalGet('/ca-fr/jsonapi/node/article/' . $this->nodes[0]
            ->uuid()));
        $this->assertEquals($this->nodes[0]
            ->getTranslation('ca')
            ->getTitle(), $output['data']['attributes']['title']);
        $output = Json::decode($this->drupalGet('/ca/jsonapi/node/article/' . $this->nodes[0]
            ->uuid(), [
            'query' => $default_sort,
        ]));
        $this->assertEquals($this->nodes[0]
            ->getTranslation('ca')
            ->getTitle(), $output['data']['attributes']['title']);
        // Test reading a collection of entities.
        $output = Json::decode($this->drupalGet('/ca/jsonapi/node/article', [
            'query' => $default_sort,
        ]));
        $this->assertEquals($this->nodes[0]
            ->getTranslation('ca')
            ->getTitle(), $output['data'][0]['attributes']['title']);
    }
    
    /**
     * Tests updating a translation.
     */
    public function testPatchTranslation() : void {
        $this->config('jsonapi.settings')
            ->set('read_only', FALSE)
            ->save(TRUE);
        $node = $this->nodes[0];
        $uuid = $node->uuid();
        // Assert the precondition: the 'ca' translation has a different title.
        $document = Json::decode($this->drupalGet('/jsonapi/node/article/' . $uuid));
        $document_ca = Json::decode($this->drupalGet('/ca/jsonapi/node/article/' . $uuid));
        $this->assertSame('en', $document['data']['attributes']['langcode']);
        $this->assertSame('ca', $document_ca['data']['attributes']['langcode']);
        $this->assertSame($node->getTitle(), $document['data']['attributes']['title']);
        $this->assertSame($node->getTitle() . ' (ca)', $document_ca['data']['attributes']['title']);
        // PATCH the 'ca' translation.
        $this->grantPermissions(Role::load(RoleInterface::ANONYMOUS_ID), [
            'bypass node access',
        ]);
        $request_options = [];
        $request_options[RequestOptions::HEADERS]['Content-Type'] = 'application/vnd.api+json';
        $request_options[RequestOptions::BODY] = Json::encode([
            'data' => [
                'type' => 'node--article',
                'id' => $uuid,
                'attributes' => [
                    'title' => $document_ca['data']['attributes']['title'] . ' UPDATED',
                ],
            ],
        ]);
        $response = $this->request('PATCH', Url::fromUri('base:/ca/jsonapi/node/article/' . $this->nodes[0]
            ->uuid()), $request_options);
        $this->assertSame(200, $response->getStatusCode());
        // Assert the postcondition: only the 'ca' translation has an updated title.
        $document_updated = Json::decode($this->drupalGet('/jsonapi/node/article/' . $uuid));
        $document_ca_updated = Json::decode($this->drupalGet('/ca/jsonapi/node/article/' . $uuid));
        $this->assertSame('en', $document_updated['data']['attributes']['langcode']);
        $this->assertSame('ca', $document_ca_updated['data']['attributes']['langcode']);
        $this->assertSame($node->getTitle(), $document_updated['data']['attributes']['title']);
        $this->assertSame($node->getTitle() . ' (ca) UPDATED', $document_ca_updated['data']['attributes']['title']);
        // Specifying a langcode is not allowed by default.
        $request_options[RequestOptions::BODY] = Json::encode([
            'data' => [
                'type' => 'node--article',
                'id' => $uuid,
                'attributes' => [
                    'langcode' => 'ca-fr',
                ],
            ],
        ]);
        $response = $this->request('PATCH', Url::fromUri('base:/ca/jsonapi/node/article/' . $this->nodes[0]
            ->uuid()), $request_options);
        $this->assertSame(403, $response->getStatusCode());
        // Specifying a langcode is allowed once configured to be alterable. But
        // modifying the language of a non-default translation is still not allowed.
        ContentLanguageSettings::loadByEntityTypeBundle('node', 'article')->setLanguageAlterable(TRUE)
            ->save();
        $response = $this->request('PATCH', Url::fromUri('base:/ca/jsonapi/node/article/' . $this->nodes[0]
            ->uuid()), $request_options);
        $this->assertSame(500, $response->getStatusCode());
        $document = $this->getDocumentFromResponse($response, FALSE);
        $this->assertSame('The translation language cannot be changed (ca).', $document['errors'][0]['detail']);
        // Changing the langcode of the default ('en') translation is possible:
        // first verify that it currently is 'en', then change it to 'ca-fr', and
        // verify that the title is unchanged, but the langcode is updated.
        $response = $this->request('GET', Url::fromUri('base:/jsonapi/node/article/' . $this->nodes[0]
            ->uuid()), $request_options);
        $document = $this->getDocumentFromResponse($response);
        $this->assertSame(200, $response->getStatusCode());
        $this->assertSame($node->getTitle(), $document['data']['attributes']['title']);
        $this->assertSame('en', $document['data']['attributes']['langcode']);
        $response = $this->request('PATCH', Url::fromUri('base:/jsonapi/node/article/' . $this->nodes[0]
            ->uuid()), $request_options);
        $document = $this->getDocumentFromResponse($response);
        $this->assertSame(200, $response->getStatusCode());
        $this->assertSame($node->getTitle(), $document['data']['attributes']['title']);
        $this->assertSame('ca-fr', $document['data']['attributes']['langcode']);
        // Finally: assert the postcondition of all installed languages.
        // - When GETting the 'en' translation, we get 'ca-fr', since the 'en'
        //   translation doesn't exist anymore.
        $response = $this->request('GET', Url::fromUri('base:/jsonapi/node/article/' . $this->nodes[0]
            ->uuid()), $request_options);
        $document = $this->getDocumentFromResponse($response);
        $this->assertSame('ca-fr', $document['data']['attributes']['langcode']);
        $this->assertSame($node->getTitle(), $document['data']['attributes']['title']);
        // - When GETting the 'ca' translation, we still get the 'ca' one.
        $response = $this->request('GET', Url::fromUri('base:/ca/jsonapi/node/article/' . $this->nodes[0]
            ->uuid()), $request_options);
        $document = $this->getDocumentFromResponse($response);
        $this->assertSame('ca', $document['data']['attributes']['langcode']);
        $this->assertSame($node->getTitle() . ' (ca) UPDATED', $document['data']['attributes']['title']);
        // - When GETting the 'ca-fr' translation, we now get the default
        //   translation.
        $response = $this->request('GET', Url::fromUri('base:/ca-fr/jsonapi/node/article/' . $this->nodes[0]
            ->uuid()), $request_options);
        $document = $this->getDocumentFromResponse($response);
        $this->assertSame('ca-fr', $document['data']['attributes']['langcode']);
        $this->assertSame($node->getTitle(), $document['data']['attributes']['title']);
    }
    
    /**
     * Tests updating a translation fallback.
     */
    public function testPatchTranslationFallback() : void {
        $this->config('jsonapi.settings')
            ->set('read_only', FALSE)
            ->save(TRUE);
        $node = $this->nodes[0];
        $uuid = $node->uuid();
        // Assert the precondition: 'ca-fr' falls back to the 'ca' translation which
        // has a different title.
        $document = Json::decode($this->drupalGet('/jsonapi/node/article/' . $uuid));
        $document_ca = Json::decode($this->drupalGet('/ca/jsonapi/node/article/' . $uuid));
        $document_ca_fr = Json::decode($this->drupalGet('/ca-fr/jsonapi/node/article/' . $uuid));
        $this->assertSame('en', $document['data']['attributes']['langcode']);
        $this->assertSame('ca', $document_ca['data']['attributes']['langcode']);
        $this->assertSame('ca', $document_ca_fr['data']['attributes']['langcode']);
        $this->assertSame($node->getTitle(), $document['data']['attributes']['title']);
        $this->assertSame($node->getTitle() . ' (ca)', $document_ca['data']['attributes']['title']);
        $this->assertSame($node->getTitle() . ' (ca)', $document_ca_fr['data']['attributes']['title']);
        // PATCH the 'ca-fr' translation.
        $this->grantPermissions(Role::load(RoleInterface::ANONYMOUS_ID), [
            'bypass node access',
        ]);
        $request_options = [];
        $request_options[RequestOptions::HEADERS]['Content-Type'] = 'application/vnd.api+json';
        $request_options[RequestOptions::BODY] = Json::encode([
            'data' => [
                'type' => 'node--article',
                'id' => $uuid,
                'attributes' => [
                    'title' => $document_ca_fr['data']['attributes']['title'] . ' UPDATED',
                ],
            ],
        ]);
        $response = $this->request('PATCH', Url::fromUri('base:/ca-fr/jsonapi/node/article/' . $this->nodes[0]
            ->uuid()), $request_options);
        $this->assertSame(405, $response->getStatusCode());
        $document = $this->getDocumentFromResponse($response, FALSE);
        $this->assertSame('The requested translation of the resource object does not exist, instead modify one of the translations that do exist: ca, en.', $document['errors'][0]['detail']);
    }
    
    /**
     * Tests creating a translation.
     */
    public function testPostTranslation() : void {
        $this->config('jsonapi.settings')
            ->set('read_only', FALSE)
            ->save(TRUE);
        $this->grantPermissions(Role::load(RoleInterface::ANONYMOUS_ID), [
            'bypass node access',
        ]);
        $title = 'Llamas FTW (ca)';
        $request_document = [
            'data' => [
                'type' => 'node--article',
                'attributes' => [
                    'title' => $title,
                    'langcode' => 'ca',
                ],
            ],
        ];
        $request_options = [];
        $request_options[RequestOptions::HEADERS]['Content-Type'] = 'application/vnd.api+json';
        // Specifying a langcode is forbidden by language_entity_field_access().
        $request_options[RequestOptions::BODY] = Json::encode($request_document);
        $response = $this->request('POST', Url::fromUri('base:/ca/jsonapi/node/article/'), $request_options);
        $this->assertSame(403, $response->getStatusCode());
        $document = $this->getDocumentFromResponse($response, FALSE);
        $this->assertSame('The current user is not allowed to POST the selected field (langcode).', $document['errors'][0]['detail']);
        // Omitting a langcode results in an entity in 'en': the default language of
        // the site.
        unset($request_document['data']['attributes']['langcode']);
        $request_options[RequestOptions::BODY] = Json::encode($request_document);
        $response = $this->request('POST', Url::fromUri('base:/ca/jsonapi/node/article/'), $request_options);
        $document = $this->getDocumentFromResponse($response);
        $this->assertSame(201, $response->getStatusCode());
        $this->assertSame($title, $document['data']['attributes']['title']);
        $this->assertSame('en', $document['data']['attributes']['langcode']);
        $this->assertSame([
            'en',
        ], array_keys(Node::load($document['data']['attributes']['drupal_internal__nid'])->getTranslationLanguages()));
        // Specifying a langcode is allowed once configured to be alterable. Now an
        // entity can be created with the specified langcode.
        ContentLanguageSettings::loadByEntityTypeBundle('node', 'article')->setLanguageAlterable(TRUE)
            ->save();
        $request_document['data']['attributes']['langcode'] = 'ca';
        $request_options[RequestOptions::BODY] = Json::encode($request_document);
        $response = $this->request('POST', Url::fromUri('base:/ca/jsonapi/node/article/'), $request_options);
        $document = $this->getDocumentFromResponse($response);
        $this->assertSame(201, $response->getStatusCode());
        $this->assertSame($title, $document['data']['attributes']['title']);
        $this->assertSame('ca', $document['data']['attributes']['langcode']);
        $this->assertSame([
            'ca',
        ], array_keys(Node::load($document['data']['attributes']['drupal_internal__nid'])->getTranslationLanguages()));
        // Same request, but sent to the URL without the language prefix.
        $response = $this->request('POST', Url::fromUri('base:/jsonapi/node/article/'), $request_options);
        $document = $this->getDocumentFromResponse($response);
        $this->assertSame(201, $response->getStatusCode());
        $this->assertSame($title, $document['data']['attributes']['title']);
        $this->assertSame('ca', $document['data']['attributes']['langcode']);
        $this->assertSame([
            'ca',
        ], array_keys(Node::load($document['data']['attributes']['drupal_internal__nid'])->getTranslationLanguages()));
    }
    
    /**
     * Tests deleting multilingual content.
     */
    public function testDeleteMultilingual() : void {
        $this->config('jsonapi.settings')
            ->set('read_only', FALSE)
            ->save(TRUE);
        $this->grantPermissions(Role::load(RoleInterface::ANONYMOUS_ID), [
            'bypass node access',
        ]);
        $response = $this->request('DELETE', Url::fromUri('base:/ca/jsonapi/node/article/' . $this->nodes[0]
            ->uuid()), []);
        $this->assertSame(405, $response->getStatusCode());
        $document = $this->getDocumentFromResponse($response, FALSE);
        $this->assertSame('Deleting a resource object translation is not yet supported. See https://www.drupal.org/docs/8/modules/jsonapi/translations.', $document['errors'][0]['detail']);
        $response = $this->request('DELETE', Url::fromUri('base:/ca-fr/jsonapi/node/article/' . $this->nodes[0]
            ->uuid()), []);
        $this->assertSame(405, $response->getStatusCode());
        $document = $this->getDocumentFromResponse($response, FALSE);
        $this->assertSame('Deleting a resource object translation is not yet supported. See https://www.drupal.org/docs/8/modules/jsonapi/translations.', $document['errors'][0]['detail']);
        $response = $this->request('DELETE', Url::fromUri('base:/jsonapi/node/article/' . $this->nodes[0]
            ->uuid()), []);
        $this->assertSame(204, $response->getStatusCode());
        $this->assertNull(Node::load($this->nodes[0]
            ->id()));
    }

}