class EntityClone

final class EntityClone implements ConfigActionPluginInterface, ContainerFactoryPluginInterface {
    public function __construct(ConfigManagerInterface $configManager, ConfigActionManager $configActionManager) {
    }
    
    /**
     * {@inheritdoc}
     */
    public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) : static {
        return new static($container->get(ConfigManagerInterface::class), $container->get('plugin.manager.config_action'));
    }
    
    /**
     * {@inheritdoc}
     */
    public function apply(string $configName, mixed $value) : void {
        if (!is_array($value)) {
            $value = [
                'id' => $value,
            ];
        }
        assert(is_string($value['id']));
        $value += [
            'fail_if_exists' => FALSE,
        ];
        assert(is_bool($value['fail_if_exists']));
        // If the original doesn't exist, there's nothing to clone.
        $original = $this->configManager
            ->loadConfigEntityByName($configName);
        if (empty($original)) {
            throw new ConfigActionException("Cannot clone '{$configName}' because it does not exist.");
        }
        $clone = $original->createDuplicate();
        $clone->set($original->getEntityType()
            ->getKey('id'), $value['id']);
        $create_action = 'entity_create:' . ($value['fail_if_exists'] ? 'create' : 'createIfNotExists');
        // Use the config action manager to invoke the create action on the clone,
        // so that it will be validated.
        $this->configActionManager
            ->applyAction($create_action, $clone->getConfigDependencyName(), $clone->toArray());
    }

}