ImageRequirements.php

<?php

declare (strict_types=1);
namespace Drupal\image\Hook;

use Drupal\Core\Hook\Attribute\Hook;
use Drupal\Core\ImageToolkit\ImageToolkitManager;
use Drupal\Core\StringTranslation\StringTranslationTrait;

/**
 * Requirements for the Image module.
 */
class ImageRequirements {
    use StringTranslationTrait;
    public function __construct(ImageToolkitManager $imageToolkitManager) {
    }
    
    /**
     * Implements hook_runtime_requirements().
     */
    public function runtime() : array {
        $toolkit = $this->imageToolkitManager
            ->getDefaultToolkit();
        if ($toolkit) {
            $plugin_definition = $toolkit->getPluginDefinition();
            $requirements = [
                'image.toolkit' => [
                    'title' => $this->t('Image toolkit'),
                    'value' => $toolkit->getPluginId(),
                    'description' => $plugin_definition['title'],
                ],
            ];
            foreach ($toolkit->getRequirements() as $key => $requirement) {
                $namespaced_key = 'image.toolkit.' . $toolkit->getPluginId() . '.' . $key;
                $requirements[$namespaced_key] = $requirement;
            }
        }
        else {
            $requirements = [
                'image.toolkit' => [
                    'title' => $this->t('Image toolkit'),
                    'value' => $this->t('None'),
                    'description' => $this->t("No image toolkit is configured on the site. Check PHP installed extensions or add a contributed toolkit that doesn't require a PHP extension. Make sure that at least one valid image toolkit is installed."),
                    'severity' => REQUIREMENT_ERROR,
                ],
            ];
        }
        return $requirements;
    }

}