class ImageAdminStylesTest

class ImageAdminStylesTest extends ImageFieldTestBase {
    use TestFileCreationTrait {
        getTestFiles as drupalGetTestFiles;
        compareFiles as drupalCompareFiles;
    }
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * Given an image style, generate an image.
     */
    public function createSampleImage(ImageStyleInterface $style) {
        static $file_path;
        // First, we need to make sure we have an image in our testing
        // file directory. Copy over an image on the first run.
        if (!isset($file_path)) {
            $files = $this->drupalGetTestFiles('image');
            $file = reset($files);
            $file_path = \Drupal::service('file_system')->copy($file->uri, 'public://');
        }
        return $style->buildUrl($file_path) ? $file_path : FALSE;
    }
    
    /**
     * Count the number of images currently create for a style.
     */
    public function getImageCount(ImageStyleInterface $style) {
        $count = 0;
        if (is_dir('public://styles/' . $style->id())) {
            $count = count(\Drupal::service('file_system')->scanDirectory('public://styles/' . $style->id(), '/.*/'));
        }
        return $count;
    }
    
    /**
     * Tests creating an image style with a numeric name.
     */
    public function testNumericStyleName() : void {
        $style_name = rand();
        $style_label = $this->randomString();
        $edit = [
            'name' => $style_name,
            'label' => $style_label,
        ];
        $this->drupalGet('admin/config/media/image-styles/add');
        $this->submitForm($edit, 'Create new style');
        $this->assertSession()
            ->statusMessageContains("Style {$style_label} was created.", 'status');
        $options = image_style_options();
        $this->assertArrayHasKey($style_name, $options);
    }
    
    /**
     * General test to add a style, add/remove/edit effects to it, then delete it.
     */
    public function testStyle() : void {
        $admin_path = 'admin/config/media/image-styles';
        // Setup a style to be created and effects to add to it.
        $style_name = $this->randomMachineName(10);
        $style_label = $this->randomString();
        $style_path = $admin_path . '/manage/' . $style_name;
        $effect_edits = [
            'image_resize' => [
                'width' => 100,
                'height' => 101,
            ],
            'image_scale' => [
                'width' => 110,
                'height' => 111,
                'upscale' => 1,
            ],
            'image_scale_and_crop' => [
                'width' => 120,
                'height' => 121,
            ],
            'image_crop' => [
                'width' => 130,
                'height' => 131,
                'anchor' => 'left-top',
            ],
            'image_desaturate' => [],
            'image_rotate' => [
                'degrees' => 5,
                'random' => 1,
                'bgcolor' => '#FFFF00',
            ],
        ];
        // Add style form.
        $edit = [
            'name' => $style_name,
            'label' => $style_label,
        ];
        $this->drupalGet($admin_path . '/add');
        $this->submitForm($edit, 'Create new style');
        $this->assertSession()
            ->statusMessageContains("Style {$style_label} was created.", 'status');
        // Ensure that the expected entity operations are there.
        $this->drupalGet($admin_path);
        $this->assertSession()
            ->linkByHrefExists($style_path);
        $this->assertSession()
            ->linkByHrefExists($style_path . '/flush');
        $this->assertSession()
            ->linkByHrefExists($style_path . '/delete');
        // Add effect form.
        // Add each sample effect to the style.
        foreach ($effect_edits as $effect => $edit) {
            $edit_data = [];
            foreach ($edit as $field => $value) {
                $edit_data['data[' . $field . ']'] = $value;
            }
            // Add the effect.
            $this->drupalGet($style_path);
            $this->submitForm([
                'new' => $effect,
            ], 'Add');
            if (!empty($edit)) {
                $effect_label = \Drupal::service('plugin.manager.image.effect')->createInstance($effect)
                    ->label();
                $this->assertSession()
                    ->pageTextContains("Add {$effect_label} effect to style {$style_label}");
                $this->submitForm($edit_data, 'Add effect');
            }
        }
        // Load the saved image style.
        $style = ImageStyle::load($style_name);
        // Ensure that third party settings were added to the config entity.
        // These are added by a hook_image_style_presave() implemented in
        // image_module_test module.
        $this->assertEquals('bar', $style->getThirdPartySetting('image_module_test', 'foo'), 'Third party settings were added to the image style.');
        // Ensure that the image style URI matches our expected path.
        $style_uri_path = $style->toUrl()
            ->toString();
        $this->assertStringContainsString($style_path, $style_uri_path, 'The image style URI is correct.');
        // Confirm that all effects on the image style have settings that match
        // what was saved.
        $uuids = [];
        foreach ($style->getEffects() as $uuid => $effect) {
            // Store the uuid for later use.
            $uuids[$effect->getPluginId()] = $uuid;
            $effect_configuration = $effect->getConfiguration();
            foreach ($effect_edits[$effect->getPluginId()] as $field => $value) {
                $this->assertEquals($effect_configuration['data'][$field], $value, "The {$field} field in the {$effect->getPluginId()} effect has the correct value of {$value}.");
            }
        }
        // Assert that every effect was saved.
        foreach (array_keys($effect_edits) as $effect_name) {
            $this->assertTrue(isset($uuids[$effect_name]), "A {$effect_name} effect was saved with ID {$uuids[$effect_name]}");
        }
        // Image style overview form (ordering and renaming).
        // Confirm the order of effects is maintained according to the order we
        // added the fields.
        $effect_edits_order = array_keys($effect_edits);
        $order_correct = TRUE;
        $index = 0;
        foreach ($style->getEffects() as $effect) {
            if ($effect_edits_order[$index] != $effect->getPluginId()) {
                $order_correct = FALSE;
            }
            $index++;
        }
        $this->assertTrue($order_correct, 'The order of the effects is correctly set by default.');
        // Test the style overview form.
        // Change the name of the style and adjust the weights of effects.
        $style_name = $this->randomMachineName(10);
        $style_label = $this->randomMachineName();
        $weight = count($effect_edits);
        $edit = [
            'name' => $style_name,
            'label' => $style_label,
        ];
        foreach ($style->getEffects() as $uuid => $effect) {
            $edit['effects[' . $uuid . '][weight]'] = $weight;
            $weight--;
        }
        // Create an image to make sure it gets flushed after saving.
        $image_path = $this->createSampleImage($style);
        $this->assertEquals(1, $this->getImageCount($style), "Image style {$style->label()} image {$image_path} successfully generated.");
        $this->drupalGet($style_path);
        $this->submitForm($edit, 'Save');
        // Note that after changing the style name, the style path is changed.
        $style_path = 'admin/config/media/image-styles/manage/' . $style_name;
        // Check that the URL was updated.
        $this->drupalGet($style_path);
        $this->assertSession()
            ->titleEquals("Edit style {$style_label} | Drupal");
        // Check that the available image effects are properly sorted.
        $option = $this->assertSession()
            ->selectExists('edit-new--2')
            ->findAll('css', 'option');
        $this->assertEquals('Ajax test', $option[1]->getText(), '"Ajax test" is the first selectable effect.');
        // Check that the image was flushed after updating the style.
        // This is especially important when renaming the style. Make sure that
        // the old image directory has been deleted.
        $this->assertEquals(0, $this->getImageCount($style), "Image style {$style->label()} was flushed after renaming the style and updating the order of effects.");
        // Load the style by the new name with the new weights.
        $style = ImageStyle::load($style_name);
        // Confirm the new style order was saved.
        $effect_edits_order = array_reverse($effect_edits_order);
        $order_correct = TRUE;
        $index = 0;
        foreach ($style->getEffects() as $effect) {
            if ($effect_edits_order[$index] != $effect->getPluginId()) {
                $order_correct = FALSE;
            }
            $index++;
        }
        $this->assertTrue($order_correct, 'The order of the effects is correctly set by default.');
        // Image effect deletion form.
        // Create an image to make sure it gets flushed after deleting an effect.
        $image_path = $this->createSampleImage($style);
        $this->assertEquals(1, $this->getImageCount($style), "Image style {$style->label()} image {$image_path} successfully generated.");
        // Delete the 'image_crop' effect from the style.
        $this->drupalGet($style_path . '/effects/' . $uuids['image_crop'] . '/delete');
        $this->submitForm([], 'Delete');
        // Confirm that the form submission was successful.
        $this->assertSession()
            ->statusCodeEquals(200);
        $image_crop_effect = $style->getEffect($uuids['image_crop']);
        $this->assertSession()
            ->statusMessageContains("The image effect {$image_crop_effect->label()} has been deleted.", 'status');
        // Confirm that there is no longer a link to the effect.
        $this->assertSession()
            ->linkByHrefNotExists($style_path . '/effects/' . $uuids['image_crop'] . '/delete');
        // Refresh the image style information and verify that the effect was
        // actually deleted.
        $entity_type_manager = $this->container
            ->get('entity_type.manager');
        $style = $entity_type_manager->getStorage('image_style')
            ->loadUnchanged($style->id());
        $this->assertFalse($style->getEffects()
            ->has($uuids['image_crop']), "Effect with ID {$uuids['image_crop']} no longer found on image style {$style->label()}");
        // Additional test on Rotate effect, for transparent background.
        $edit = [
            'data[degrees]' => 5,
            'data[random]' => 0,
            'data[bgcolor]' => '',
        ];
        $this->drupalGet($style_path);
        $this->submitForm([
            'new' => 'image_rotate',
        ], 'Add');
        $this->submitForm($edit, 'Add effect');
        $entity_type_manager = $this->container
            ->get('entity_type.manager');
        $style = $entity_type_manager->getStorage('image_style')
            ->loadUnchanged($style_name);
        $this->assertCount(6, $style->getEffects(), 'Rotate effect with transparent background was added.');
        // Style deletion form.
        // Delete the style.
        $this->drupalGet($style_path . '/delete');
        $this->submitForm([], 'Delete');
        // Confirm the style directory has been removed.
        $directory = 'public://styles/' . $style_name;
        $this->assertDirectoryDoesNotExist($directory);
        $this->assertNull(ImageStyle::load($style_name), "Image style {$style->label()} successfully deleted.");
        // Test empty text when there are no image styles.
        // Delete all image styles.
        foreach (ImageStyle::loadMultiple() as $image_style) {
            $image_style->delete();
        }
        // Confirm that the empty text is correct on the image styles page.
        $this->drupalGet($admin_path);
        $this->assertSession()
            ->pageTextContains("There are currently no styles. Add a new one.");
        $this->assertSession()
            ->linkByHrefExists(Url::fromRoute('image.style_add')->toString());
    }
    
    /**
     * Tests deleting a style and choosing a replacement style.
     */
    public function testStyleReplacement() : void {
        // Create a new style.
        $style_name = $this->randomMachineName(10);
        $style_label = $this->randomString();
        $style = ImageStyle::create([
            'name' => $style_name,
            'label' => $style_label,
        ]);
        $style->save();
        $style_path = 'admin/config/media/image-styles/manage/';
        // Create an image field that uses the new style.
        $field_name = $this->randomMachineName(10);
        $this->createImageField($field_name, 'node', 'article');
        \Drupal::service('entity_display.repository')->getViewDisplay('node', 'article')
            ->setComponent($field_name, [
            'type' => 'image',
            'settings' => [
                'image_style' => $style_name,
            ],
        ])
            ->save();
        // Create a new node with an image attached.
        $test_image = current($this->drupalGetTestFiles('image'));
        $nid = $this->uploadNodeImage($test_image, $field_name, 'article', $this->randomMachineName());
        $node = Node::load($nid);
        // Get node field original image URI.
        $fid = $node->get($field_name)->target_id;
        $original_uri = File::load($fid)->getFileUri();
        // Test that image is displayed using newly created style.
        
        /** @var \Drupal\Core\File\FileUrlGeneratorInterface $file_url_generator */
        $file_url_generator = \Drupal::service('file_url_generator');
        $this->drupalGet('node/' . $nid);
        $this->assertSession()
            ->responseContains($file_url_generator->transformRelative($style->buildUrl($original_uri)));
        // Rename the style and make sure the image field is updated.
        $new_style_name = $this->randomMachineName(10);
        $new_style_label = $this->randomString();
        $edit = [
            'name' => $new_style_name,
            'label' => $new_style_label,
        ];
        $this->drupalGet($style_path . $style_name);
        $this->submitForm($edit, 'Save');
        $this->assertSession()
            ->statusMessageContains('Changes to the style have been saved.', 'status');
        $this->drupalGet('node/' . $nid);
        // Reload the image style using the new name.
        $style = ImageStyle::load($new_style_name);
        $this->assertSession()
            ->responseContains($file_url_generator->transformRelative($style->buildUrl($original_uri)));
        // Delete the style and choose a replacement style.
        $edit = [
            'replacement' => 'thumbnail',
        ];
        $this->drupalGet($style_path . $new_style_name . '/delete');
        $this->submitForm($edit, 'Delete');
        $this->assertSession()
            ->statusMessageContains("The image style {$new_style_label} has been deleted.", 'status');
        $replacement_style = ImageStyle::load('thumbnail');
        $this->drupalGet('node/' . $nid);
        $this->assertSession()
            ->responseContains($file_url_generator->transformRelative($replacement_style->buildUrl($original_uri)));
    }
    
    /**
     * Verifies that editing an image effect does not cause it to be duplicated.
     */
    public function testEditEffect() : void {
        // Add a scale effect.
        $style_name = 'test_style_effect_edit';
        $this->drupalGet('admin/config/media/image-styles/add');
        $this->submitForm([
            'label' => 'Test style effect edit',
            'name' => $style_name,
        ], 'Create new style');
        $this->submitForm([
            'new' => 'image_scale_and_crop',
        ], 'Add');
        $this->submitForm([
            'data[width]' => '300',
            'data[height]' => '200',
        ], 'Add effect');
        $this->assertSession()
            ->pageTextContains('Scale and crop 300×200');
        // There should normally be only one edit link on this page initially.
        $this->clickLink('Edit');
        $this->assertSession()
            ->pageTextContains("Edit Scale and crop effect on style Test style effect edit");
        $this->submitForm([
            'data[width]' => '360',
            'data[height]' => '240',
        ], 'Update effect');
        $this->assertSession()
            ->pageTextContains('Scale and crop 360×240');
        // Check that the previous effect is replaced.
        $this->assertSession()
            ->pageTextNotContains('Scale and crop 300×200');
        // Add another scale effect.
        $this->drupalGet('admin/config/media/image-styles/add');
        $this->submitForm([
            'label' => 'Test style scale edit scale',
            'name' => 'test_style_scale_edit_scale',
        ], 'Create new style');
        $this->submitForm([
            'new' => 'image_scale',
        ], 'Add');
        $this->submitForm([
            'data[width]' => '12',
            'data[height]' => '19',
        ], 'Add effect');
        // Edit the scale effect that was just added.
        $this->clickLink('Edit');
        $this->assertSession()
            ->pageTextContains("Edit Scale effect on style Test style scale edit scale");
        $this->submitForm([
            'data[width]' => '24',
            'data[height]' => '19',
        ], 'Update effect');
        // Add another scale effect and make sure both exist. Click through from
        // the overview to make sure that it is possible to add new effect then.
        $this->drupalGet('admin/config/media/image-styles');
        $rows = $this->xpath('//table/tbody/tr');
        $i = 0;
        foreach ($rows as $row) {
            if ($row->find('css', 'td')
                ->getText() === 'Test style scale edit scale') {
                $this->clickLink('Edit', $i);
                break;
            }
            $i++;
        }
        $this->submitForm([
            'new' => 'image_scale',
        ], 'Add');
        $this->submitForm([
            'data[width]' => '12',
            'data[height]' => '19',
        ], 'Add effect');
        $this->assertSession()
            ->pageTextContains('Scale 24×19');
        $this->assertSession()
            ->pageTextContains('Scale 12×19');
        // Try to edit a nonexistent effect.
        $uuid = $this->container
            ->get('uuid');
        $this->drupalGet('admin/config/media/image-styles/manage/' . $style_name . '/effects/' . $uuid->generate());
        $this->assertSession()
            ->statusCodeEquals(404);
    }
    
    /**
     * Tests flush user interface.
     */
    public function testFlushUserInterface() : void {
        $admin_path = 'admin/config/media/image-styles';
        // Create a new style.
        $style_name = $this->randomMachineName(10);
        $style = ImageStyle::create([
            'name' => $style_name,
            'label' => $this->randomString(),
        ]);
        $style->save();
        // Create an image to make sure it gets flushed.
        $files = $this->drupalGetTestFiles('image');
        $image_uri = $files[0]->uri;
        $derivative_uri = $style->buildUri($image_uri);
        $this->assertTrue($style->createDerivative($image_uri, $derivative_uri));
        $this->assertEquals(1, $this->getImageCount($style));
        // Go to image styles list page and check if the flush operation link
        // exists.
        $this->drupalGet($admin_path);
        $flush_path = $admin_path . '/manage/' . $style_name . '/flush';
        $this->assertSession()
            ->linkByHrefExists($flush_path);
        // Flush the image style derivatives using the user interface.
        $this->drupalGet($flush_path);
        $this->submitForm([], 'Flush');
        // The derivative image file should have been deleted.
        $this->assertEquals(0, $this->getImageCount($style));
    }
    
    /**
     * Tests image style configuration import that does a delete.
     */
    public function testConfigImport() : void {
        // Create a new style.
        $style_name = $this->randomMachineName(10);
        $style_label = $this->randomString();
        $style = ImageStyle::create([
            'name' => $style_name,
            'label' => $style_label,
        ]);
        $style->save();
        // Create an image field that uses the new style.
        $field_name = $this->randomMachineName(10);
        $this->createImageField($field_name, 'node', 'article');
        \Drupal::service('entity_display.repository')->getViewDisplay('node', 'article')
            ->setComponent($field_name, [
            'type' => 'image',
            'settings' => [
                'image_style' => $style_name,
            ],
        ])
            ->save();
        // Create a new node with an image attached.
        $test_image = current($this->drupalGetTestFiles('image'));
        $nid = $this->uploadNodeImage($test_image, $field_name, 'article', $this->randomMachineName());
        $node = Node::load($nid);
        // Get node field original image URI.
        $fid = $node->get($field_name)->target_id;
        $original_uri = File::load($fid)->getFileUri();
        // Test that image is displayed using newly created style.
        $this->drupalGet('node/' . $nid);
        $this->assertSession()
            ->responseContains(\Drupal::service('file_url_generator')->transformRelative($style->buildUrl($original_uri)));
        // Copy config to sync, and delete the image style.
        $sync = $this->container
            ->get('config.storage.sync');
        $active = $this->container
            ->get('config.storage');
        // Remove the image field from the display, to avoid a dependency error
        // during import.
        EntityViewDisplay::load('node.article.default')->removeComponent($field_name)
            ->save();
        $this->copyConfig($active, $sync);
        $sync->delete('image.style.' . $style_name);
        $this->configImporter()
            ->import();
        $this->assertNull(ImageStyle::load($style_name), 'Style deleted after config import.');
        $this->assertEquals(0, $this->getImageCount($style), 'Image style was flushed after being deleted by config import.');
    }
    
    /**
     * Tests access for the image style listing.
     */
    public function testImageStyleAccess() : void {
        $style = ImageStyle::create([
            'name' => 'style_foo',
            'label' => $this->randomString(),
        ]);
        $style->save();
        $this->drupalGet('admin/config/media/image-styles');
        $this->clickLink('Edit');
        $this->assertSession()
            ->pageTextContains("Select a new effect");
    }
    
    /**
     * Tests the display of preview images using a private scheme.
     */
    public function testPreviewImageShowInPrivateScheme() : void {
        $this->config('system.file')
            ->set('default_scheme', 'private')
            ->save();
        
        /** @var \Drupal\Core\File\FileUrlGeneratorInterface $file_url_generator */
        $file_url_generator = \Drupal::service('file_url_generator');
        // Get the original preview image file in core config.
        $original_path = $this->config('image.settings')
            ->get('preview_image');
        $style = ImageStyle::create([
            'name' => 'test_foo',
            'label' => 'test foo',
        ]);
        $style->save();
        // Build the derivative preview image file with the Image Style.
        // @see template_preprocess_image_style_preview()
        $preview_file = $style->buildUri($original_path);
        $style->createDerivative($original_path, $preview_file);
        // Check if the derivative image exists.
        $this->assertFileExists($preview_file);
        // Generate itok token for the preview image.
        $itok = $style->getPathToken('private://' . $original_path);
        $url = $file_url_generator->generateAbsoluteString($preview_file);
        $url .= '?itok=' . $itok;
        // Check if the preview image with style is shown.
        $this->drupalGet($url);
        $this->assertSession()
            ->statusCodeEquals(200);
        $this->assertSession()
            ->responseHeaderContains('Content-Type', 'image/png');
    }

}