class ContentTranslationHandlerTest

class ContentTranslationHandlerTest extends KernelTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected static $modules = [
        'content_translation',
        'entity_test',
        'language',
        'user',
    ];
    
    /**
     * The state service.
     *
     * @var \Drupal\Core\State\StateInterface
     */
    protected $state;
    
    /**
     * The entity type bundle information.
     *
     * @var \Drupal\Core\Entity\EntityTypeBundleInfoInterface
     */
    protected $entityTypeBundleInfo;
    
    /**
     * The entity type manager.
     *
     * @var \Drupal\Core\Entity\EntityTypeManagerInterface
     */
    protected $entityTypeManager;
    
    /**
     * The messenger.
     *
     * @var \Drupal\Core\Messenger\MessengerInterface
     */
    protected $messenger;
    
    /**
     * The ID of the entity type used in this test.
     *
     * @var string
     */
    protected $entityTypeId = 'entity_test_mul';
    
    /**
     * The ID of the translation language used in this test.
     *
     * @var string
     */
    protected $translationLangcode = 'af';
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        $this->state = $this->container
            ->get('state');
        $this->entityTypeBundleInfo = $this->container
            ->get('entity_type.bundle.info');
        $this->entityTypeManager = $this->container
            ->get('entity_type.manager');
        $this->messenger = $this->container
            ->get('messenger');
        $this->installEntitySchema($this->entityTypeId);
        ConfigurableLanguage::createFromLangcode($this->translationLangcode)
            ->save();
    }
    
    /**
     * Tests ContentTranslationHandler::entityFormSharedElements()
     *
     * @param array $element
     *   The element that will be altered.
     * @param bool $default_translation_affected
     *   Whether or not only the default translation of the entity is affected.
     * @param bool $default_translation
     *   Whether or not the entity is the default translation.
     * @param bool $translation_form
     *   Whether or not the form is a translation form.
     * @param bool $is_submitted
     *   Whether or not the form should be marked as submitted.
     * @param bool $is_rebuilding
     *   Whether or not the form should be flagged for rebuild.
     * @param array $expected
     *   The expected altered element.
     * @param bool $display_warning
     *   Whether or not the warning message should be displayed.
     *
     * @dataProvider providerTestEntityFormSharedElements
     *
     * @covers ::entityFormSharedElements
     * @covers ::addTranslatabilityClue
     */
    public function testEntityFormSharedElements(array $element, $default_translation_affected, $default_translation, $translation_form, $is_submitted, $is_rebuilding, array $expected, $display_warning) {
        $this->state
            ->set('entity_test.translation', TRUE);
        $this->state
            ->set('entity_test.untranslatable_fields.default_translation_affected', $default_translation_affected);
        $this->entityTypeBundleInfo
            ->clearCachedBundles();
        
        /** @var \Drupal\Core\Entity\ContentEntityInterface $entity */
        $entity = $this->entityTypeManager
            ->getStorage($this->entityTypeId)
            ->create();
        if (!$default_translation) {
            $entity = $entity->addTranslation($this->translationLangcode);
        }
        $entity->save();
        $form_object = $this->entityTypeManager
            ->getFormObject($this->entityTypeId, 'default');
        $form_object->setEntity($entity);
        $form_state = new FormState();
        $form_state->addBuildInfo('callback_object', $form_object)
            ->set([
            'content_translation',
            'translation_form',
        ], $translation_form);
        if ($is_submitted) {
            $form_state->setSubmitted();
        }
        $form_state->setRebuild($is_rebuilding);
        $handler = $this->entityTypeManager
            ->getHandler($this->entityTypeId, 'translation');
        $actual = $handler->entityFormSharedElements($element, $form_state, $element);
        $this->assertEquals($expected, $actual);
        if ($display_warning) {
            $messages = $this->messenger
                ->messagesByType('warning');
            $this->assertCount(1, $messages);
            $expected_message = sprintf('Fields that apply to all languages are hidden to avoid conflicting changes. <a href="%s">Edit them on the original language form</a>.', $entity->toUrl('edit-form')
                ->toString());
            $this->assertEquals($expected_message, reset($messages));
        }
    }
    
    /**
     * Returns test cases for ::testEntityFormSharedElements().
     *
     * @return array[]
     *   An array of test cases, each one containing the element to alter, the
     *   form state, and the expected altered element.
     */
    public function providerTestEntityFormSharedElements() {
        $tests = [];
        $element = [];
        $tests['empty'] = [
            'element' => $element,
            'default_translation_affected' => TRUE,
            'default_translation' => TRUE,
            'translation_form' => FALSE,
            'is_submitted' => TRUE,
            'is_rebuilding' => TRUE,
            'expected' => $element,
            'display_warning' => FALSE,
        ];
        $element = [
            '#type' => 'textfield',
        ];
        $tests['no-children'] = $tests['empty'];
        $tests['no-children']['element'] = $element;
        $tests['no-children']['expected'] = $element;
        $element = [
            'test' => [
                '#type' => 'textfield',
                '#multilingual' => TRUE,
            ],
        ];
        $tests['multilingual'] = $tests['empty'];
        $tests['multilingual']['element'] = $element;
        $tests['multilingual']['expected'] = $element;
        unset($element['test']['#multilingual']);
        $tests['no-title'] = $tests['empty'];
        $tests['no-title']['element'] = $element;
        $tests['no-title']['expected'] = $element;
        $element['test']['#title'] = 'Test';
        $tests['no-translatability-clue'] = $tests['empty'];
        $tests['no-translatability-clue']['element'] = $element;
        $tests['no-translatability-clue']['expected'] = $element;
        $expected = $element;
        $expected['test']['#title'] .= ' <span class="translation-entity-all-languages">(all languages)</span>';
        $tests['translatability-clue'] = $tests['no-translatability-clue'];
        $tests['translatability-clue']['default_translation_affected'] = FALSE;
        $tests['translatability-clue']['expected'] = $expected;
        $ignored_types = [
            'actions',
            'details',
            'hidden',
            'link',
            'token',
            'value',
            'vertical_tabs',
        ];
        foreach ($ignored_types as $ignored_type) {
            $element = [
                'test' => [
                    '#type' => $ignored_type,
                    '#title' => 'Test',
                ],
            ];
            $tests["ignore-{$ignored_type}"] = $tests['translatability-clue'];
            $tests["ignore-{$ignored_type}"]['element'] = $element;
            $tests["ignore-{$ignored_type}"]['expected'] = $element;
        }
        $tests['unknown-field'] = $tests['no-translatability-clue'];
        $tests['unknown-field']['default_translation'] = FALSE;
        $element = [
            'name' => [
                '#type' => 'textfield',
            ],
        ];
        $expected = $element;
        $expected['name']['#access'] = FALSE;
        $tests['hide-untranslatable'] = $tests['unknown-field'];
        $tests['hide-untranslatable']['element'] = $element;
        $tests['hide-untranslatable']['expected'] = $expected;
        $tests['is-rebuilding'] = $tests['hide-untranslatable'];
        $tests['is-rebuilding']['is_submitted'] = FALSE;
        $tests['display-warning'] = $tests['is-rebuilding'];
        $tests['display-warning']['is_rebuilding'] = FALSE;
        $tests['display-warning']['display_warning'] = TRUE;
        $tests['no-translation-form'] = $tests['no-translatability-clue'];
        $tests['no-translation-form']['translation_form'] = FALSE;
        return $tests;
    }

}