class EntityBundle

class EntityBundle extends ConditionPluginBase implements ConstraintConditionInterface, ContainerFactoryPluginInterface {
    
    /**
     * The entity type bundle info service.
     *
     * @var \Drupal\Core\Entity\EntityTypeBundleInfoInterface
     */
    protected $entityTypeBundleInfo;
    
    /**
     * @var \Drupal\Core\Entity\EntityTypeInterface|null
     */
    protected $bundleOf;
    
    /**
     * Creates a new EntityBundle instance.
     *
     * @param \Drupal\Core\Entity\EntityTypeManagerInterface $entity_type_manager
     *   The entity type manager.
     * @param \Drupal\Core\Entity\EntityTypeBundleInfoInterface $entity_type_bundle_info
     *   The entity type bundle info service.
     * @param array $configuration
     *   The plugin configuration, i.e. an array with configuration values keyed
     *   by configuration option name. The special key 'context' may be used to
     *   initialize the defined contexts by setting it to an array of context
     *   values keyed by context names.
     * @param string $plugin_id
     *   The plugin_id for the plugin instance.
     * @param mixed $plugin_definition
     *   The plugin implementation definition.
     */
    public function __construct(EntityTypeManagerInterface $entity_type_manager, EntityTypeBundleInfoInterface $entity_type_bundle_info, array $configuration, $plugin_id, $plugin_definition) {
        parent::__construct($configuration, $plugin_id, $plugin_definition);
        $this->entityTypeBundleInfo = $entity_type_bundle_info;
        $this->bundleOf = $entity_type_manager->getDefinition($this->getDerivativeId());
    }
    
    /**
     * {@inheritdoc}
     */
    public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
        return new static($container->get('entity_type.manager'), $container->get('entity_type.bundle.info'), $configuration, $plugin_id, $plugin_definition);
    }
    
    /**
     * {@inheritdoc}
     */
    public function buildConfigurationForm(array $form, FormStateInterface $form_state) {
        $options = [];
        $bundles = $this->entityTypeBundleInfo
            ->getBundleInfo($this->bundleOf
            ->id());
        foreach ($bundles as $id => $info) {
            $options[$id] = $info['label'];
        }
        $form['bundles'] = [
            '#title' => $this->pluginDefinition['label'],
            '#type' => 'checkboxes',
            '#options' => $options,
            '#default_value' => $this->configuration['bundles'],
        ];
        return parent::buildConfigurationForm($form, $form_state);
    }
    
    /**
     * {@inheritdoc}
     */
    public function submitConfigurationForm(array &$form, FormStateInterface $form_state) {
        $this->configuration['bundles'] = array_filter($form_state->getValue('bundles'));
        parent::submitConfigurationForm($form, $form_state);
    }
    
    /**
     * {@inheritdoc}
     */
    public function evaluate() {
        if (empty($this->configuration['bundles']) && !$this->isNegated()) {
            return TRUE;
        }
        
        /** @var \Drupal\Core\Entity\ContentEntityInterface $entity */
        $entity = $this->getContextValue($this->bundleOf
            ->id());
        if (!$entity instanceof ContentEntityInterface) {
            return TRUE;
        }
        return !empty($this->configuration['bundles'][$entity->bundle()]);
    }
    
    /**
     * {@inheritdoc}
     */
    public function summary() {
        if (count($this->configuration['bundles']) > 1) {
            $bundles = $this->configuration['bundles'];
            $last = array_pop($bundles);
            $bundles = implode(', ', $bundles);
            return $this->t('@bundle_type is @bundles or @last', [
                '@bundle_type' => $this->bundleOf
                    ->getBundleLabel(),
                '@bundles' => $bundles,
                '@last' => $last,
            ]);
        }
        $bundle = reset($this->configuration['bundles']);
        return $this->t('@bundle_type is @bundle', [
            '@bundle_type' => $this->bundleOf
                ->getBundleLabel(),
            '@bundle' => $bundle,
        ]);
    }
    
    /**
     * {@inheritdoc}
     */
    public function defaultConfiguration() {
        return [
            'bundles' => [],
        ] + parent::defaultConfiguration();
    }
    
    /**
     * {@inheritdoc}
     *
     * @param \Drupal\Core\Plugin\Context\ContextInterface[] $contexts
     */
    public function applyConstraints(array $contexts = []) {
        // Nullify any bundle constraints on contexts we care about.
        $this->removeConstraints($contexts);
        $bundle = array_values($this->configuration['bundles']);
        // There's only one expected context for this plugin type.
        foreach ($this->getContextMapping() as $definition_id => $context_id) {
            $contexts[$context_id]->getContextDefinition()
                ->addConstraint('Bundle', [
                'value' => $bundle,
            ]);
        }
    }
    
    /**
     * {@inheritdoc}
     *
     * @param \Drupal\Core\Plugin\Context\ContextInterface[] $contexts
     */
    public function removeConstraints(array $contexts = []) {
        // Reset the bundle constraint for any context we've mapped.
        foreach ($this->getContextMapping() as $definition_id => $context_id) {
            $constraints = $contexts[$context_id]->getContextDefinition()
                ->getConstraints();
            unset($constraints['Bundle']);
            $contexts[$context_id]->getContextDefinition()
                ->setConstraints($constraints);
        }
    }

}