class MediaLibraryDisplayModeTest

class MediaLibraryDisplayModeTest extends BrowserTestBase {
    use MediaTypeCreationTrait;
    
    /**
     * {@inheritdoc}
     */
    protected static $modules = [
        'field_ui',
        'media',
        'system',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        $this->drupalLogin($this->drupalCreateUser([
            'access media overview',
            'administer media',
            'administer media fields',
            'administer media form display',
            'administer media display',
            'administer media types',
            'view media',
        ]));
    }
    
    /**
     * Tests that the Media Library can automatically configure display modes.
     */
    public function testDisplayModes() {
        $this->createMediaType('file', [
            'id' => 'type_one',
        ]);
        $this->createMediaType('file', [
            'id' => 'type_two',
            'field_map' => [
                'name' => File::METADATA_ATTRIBUTE_NAME,
            ],
        ]);
        $this->createMediaType('image', [
            'id' => 'type_three',
        ]);
        $this->createMediaType('image', [
            'id' => 'type_four',
            'field_map' => [
                'name' => Image::METADATA_ATTRIBUTE_NAME,
            ],
        ]);
        // Display modes are not automatically created when creating a media type
        // programmatically, only when installing the module or when creating a
        // media type via the UI.
        $this->assertNull(EntityFormDisplay::load('media.type_one.media_library'));
        $this->assertNull(EntityViewDisplay::load('media.type_one.media_library'));
        $this->assertNull(EntityFormDisplay::load('media.type_two.media_library'));
        $this->assertNull(EntityViewDisplay::load('media.type_two.media_library'));
        $this->assertNull(EntityFormDisplay::load('media.type_three.media_library'));
        $this->assertNull(EntityViewDisplay::load('media.type_three.media_library'));
        $this->assertNull(EntityFormDisplay::load('media.type_four.media_library'));
        $this->assertNull(EntityViewDisplay::load('media.type_four.media_library'));
        // Display modes are created on install.
        $this->container
            ->get('module_installer')
            ->install([
            'media_library',
        ]);
        // For a non-image media type without a mapped name field, the media_library
        // form mode should only contain the name field.
        $this->assertFormDisplay('type_one', TRUE, FALSE);
        $this->assertViewDisplay('type_one', 'medium');
        // For a non-image media type with a mapped name field, the media_library
        // form mode should not contain any fields.
        $this->assertFormDisplay('type_two', FALSE, FALSE);
        $this->assertViewDisplay('type_two', 'medium');
        // For an image media type without a mapped name field, the media_library
        // form mode should contain the name field and the source field.
        $this->assertFormDisplay('type_three', TRUE, TRUE);
        $this->assertViewDisplay('type_three', 'medium');
        // For an image media type with a mapped name field, the media_library form
        // mode should only contain the source field.
        $this->assertFormDisplay('type_four', FALSE, TRUE);
        $this->assertViewDisplay('type_four', 'medium');
        // Create a non-image media type without a mapped name field in the UI.
        $type_five_id = 'type_five';
        $edit = [
            'label' => $type_five_id,
            'id' => $type_five_id,
            'source' => 'file',
        ];
        $this->drupalGet('admin/structure/media/add');
        $this->submitForm($edit, 'Save');
        $this->submitForm([], 'Save');
        $this->assertSession()
            ->pageTextContains("Media Library form and view displays have been created for the {$type_five_id} media type.");
        $this->assertFormDisplay($type_five_id, TRUE, FALSE);
        $this->assertViewDisplay($type_five_id, 'medium');
        // Create a non-image media type with a mapped name field in the UI.
        $type_six_id = 'type_six';
        $edit = [
            'label' => $type_six_id,
            'id' => $type_six_id,
            'source' => 'file',
        ];
        $this->drupalGet('admin/structure/media/add');
        $this->submitForm($edit, 'Save');
        $edit = [
            'field_map[name]' => File::METADATA_ATTRIBUTE_NAME,
        ];
        $this->submitForm($edit, 'Save');
        $this->assertSession()
            ->pageTextContains("Media Library form and view displays have been created for the {$type_six_id} media type.");
        $this->assertFormDisplay($type_six_id, FALSE, FALSE);
        $this->assertViewDisplay($type_six_id, 'medium');
        // Create an image media type without a mapped name field in the UI.
        $type_seven_id = 'type_seven';
        $edit = [
            'label' => $type_seven_id,
            'id' => $type_seven_id,
            'source' => 'image',
        ];
        $this->drupalGet('admin/structure/media/add');
        $this->submitForm($edit, 'Save');
        $this->submitForm([], 'Save');
        $this->assertSession()
            ->pageTextContains("Media Library form and view displays have been created for the {$type_seven_id} media type.");
        $this->assertFormDisplay($type_seven_id, TRUE, TRUE);
        $this->assertViewDisplay($type_seven_id, 'medium');
        // Create an image media type with a mapped name field in the UI.
        $type_eight_id = 'type_eight';
        $edit = [
            'label' => $type_eight_id,
            'id' => $type_eight_id,
            'source' => 'image',
        ];
        $this->drupalGet('admin/structure/media/add');
        $this->submitForm($edit, 'Save');
        $edit = [
            'field_map[name]' => Image::METADATA_ATTRIBUTE_NAME,
        ];
        $this->submitForm($edit, 'Save');
        $this->assertSession()
            ->pageTextContains("Media Library form and view displays have been created for the {$type_eight_id} media type.");
        $this->assertFormDisplay($type_eight_id, FALSE, TRUE);
        $this->assertViewDisplay($type_eight_id, 'medium');
        // Create an oEmbed media type with a mapped name field in the UI.
        $type_id = 'pinto_bean';
        $edit = [
            'label' => $type_id,
            'id' => $type_id,
            'source' => 'oembed:video',
        ];
        $this->drupalGet('admin/structure/media/add');
        $this->submitForm($edit, 'Save');
        $edit = [
            'field_map[title]' => 'name',
        ];
        $this->submitForm($edit, 'Save');
        $this->assertSession()
            ->pageTextContains("Media Library form and view displays have been created for the {$type_id} media type.");
        $this->assertFormDisplay($type_id, FALSE, FALSE);
        $this->assertViewDisplay($type_id, 'medium');
        // Delete a form and view display.
        EntityFormDisplay::load('media.type_one.media_library')->delete();
        EntityViewDisplay::load('media.type_one.media_library')->delete();
        // Make sure the form and view display are not created when saving existing
        // media types.
        $this->drupalGet('admin/structure/media/manage/type_one');
        $this->submitForm([], 'Save');
        $this->assertNull(EntityFormDisplay::load('media.type_one.media_library'));
        $this->assertNull(EntityViewDisplay::load('media.type_one.media_library'));
        // Delete the medium image style.
        ImageStyle::load('medium')->delete();
        // Create an image media type, assert the displays are created and the
        // fallback 'media_library' image style is used.
        $type_nine_id = 'type_nine';
        $edit = [
            'label' => $type_nine_id,
            'id' => $type_nine_id,
            'source' => 'image',
        ];
        $this->drupalGet('admin/structure/media/add');
        $this->submitForm($edit, 'Save');
        $this->submitForm([], 'Save');
        $this->assertSession()
            ->pageTextContains("Media Library form and view displays have been created for the {$type_nine_id} media type.");
        $this->assertFormDisplay($type_nine_id, TRUE, TRUE);
        $this->assertViewDisplay($type_nine_id, 'media_library');
    }
    
    /**
     * Asserts the media library form display components for a media type.
     *
     * @param string $type_id
     *   The media type ID.
     * @param bool $has_name
     *   Whether the media library form display should contain the name field or
     *   not.
     * @param bool $has_source_field
     *   Whether the media library form display should contain the source field or
     *   not.
     *
     * @internal
     */
    protected function assertFormDisplay(string $type_id, bool $has_name, bool $has_source_field) : void {
        // These components are added by default and invisible.
        $components = [
            'revision_log_message',
            'langcode',
        ];
        // Only assert the name and source field if needed.
        if ($has_name) {
            $components[] = 'name';
        }
        if ($has_source_field) {
            $type = MediaType::load($type_id);
            $components[] = $type->getSource()
                ->getSourceFieldDefinition($type)
                ->getName();
        }
        $form_display = EntityFormDisplay::load('media.' . $type_id . '.media_library');
        $this->assertInstanceOf(EntityFormDisplay::class, $form_display);
        $actual_components = array_keys($form_display->getComponents());
        sort($components);
        sort($actual_components);
        $this->assertSame($components, $actual_components);
    }
    
    /**
     * Asserts the media library view display components for a media type.
     *
     * @param string $type_id
     *   The media type ID.
     * @param string $image_style
     *   The ID of the image style that should be configured for the thumbnail.
     *
     * @internal
     */
    protected function assertViewDisplay(string $type_id, string $image_style) : void {
        $view_display = EntityViewDisplay::load('media.' . $type_id . '.media_library');
        $this->assertInstanceOf(EntityViewDisplay::class, $view_display);
        // Assert the media library view display contains only the thumbnail.
        $this->assertSame([
            'thumbnail',
        ], array_keys($view_display->getComponents()));
        // Assert the thumbnail image style.
        $thumbnail = $view_display->getComponent('thumbnail');
        $this->assertIsArray($thumbnail);
        $this->assertSame($image_style, $thumbnail['settings']['image_style']);
    }

}