FormController.php

<?php

namespace Drupal\condition_test;

use Drupal\Core\Form\FormInterface;
use Drupal\Core\Condition\ConditionManager;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Form\SubformState;
use Drupal\Core\StringTranslation\StringTranslationTrait;
use Drupal\node\Entity\Node;

/**
 * Routing controller class for condition_test testing of condition forms.
 */
class FormController implements FormInterface {
    use StringTranslationTrait;
    
    /**
     * The condition plugin we will be working with.
     *
     * @var \Drupal\Core\Condition\ConditionInterface
     */
    protected $condition;
    
    /**
     * The condition plugin current_theme.
     *
     * @var \Drupal\Core\Condition\ConditionInterface
     */
    protected $condition_current_theme;
    
    /**
     * {@inheritdoc}
     */
    public function getFormId() {
        return 'condition_node_type_test_form';
    }
    
    /**
     * Constructs a \Drupal\condition_test\FormController object.
     */
    public function __construct() {
        $manager = new ConditionManager(\Drupal::service('container.namespaces'), \Drupal::cache('discovery'), \Drupal::moduleHandler());
        $this->condition = $manager->createInstance('entity_bundle:node');
        $this->condition_current_theme = $manager->createInstance('current_theme');
    }
    
    /**
     * {@inheritdoc}
     */
    public function buildForm(array $form, FormStateInterface $form_state) {
        $form['#tree'] = TRUE;
        $form['entity_bundle'] = [];
        $subformState = SubformState::createForSubform($form['entity_bundle'], $form, $form_state);
        $form['entity_bundle'] = $this->condition
            ->buildConfigurationForm($form['entity_bundle'], $subformState);
        $form['current_theme'] = [];
        $subformState = SubformState::createForSubform($form['current_theme'], $form, $form_state);
        $form['current_theme'] = $this->condition_current_theme
            ->buildConfigurationForm($form['current_theme'], $subformState);
        $form['actions']['submit'] = [
            '#type' => 'submit',
            '#value' => $this->t('Submit'),
        ];
        return $form;
    }
    
    /**
     * Implements \Drupal\Core\Form\FormInterface::validateForm().
     */
    public function validateForm(array &$form, FormStateInterface $form_state) {
        $subformState = SubformState::createForSubform($form['entity_bundle'], $form, $form_state);
        $this->condition
            ->validateConfigurationForm($form['entity_bundle'], $subformState);
    }
    
    /**
     * {@inheritdoc}
     */
    public function submitForm(array &$form, FormStateInterface $form_state) {
        $subformState = SubformState::createForSubform($form['entity_bundle'], $form, $form_state);
        $this->condition
            ->submitConfigurationForm($form['entity_bundle'], $subformState);
        $subformState = SubformState::createForSubform($form['current_theme'], $form, $form_state);
        $this->condition_current_theme
            ->submitConfigurationForm($form['current_theme'], $subformState);
        $config = $this->condition
            ->getConfig();
        foreach ($config['bundles'] as $bundle) {
            \Drupal::messenger()->addStatus('Bundle: ' . $bundle);
        }
        $article = Node::load(1);
        $this->condition
            ->setContextValue('node', $article);
        if ($this->condition
            ->execute()) {
            \Drupal::messenger()->addStatus($this->t('Executed successfully.'));
        }
        if ($this->condition_current_theme
            ->execute()) {
            \Drupal::messenger()->addStatus($this->condition_current_theme
                ->summary());
        }
    }

}