maestro-3.0.1-rc2/modules/maestro_webform/src/Plugin/WebformHandler/MaestroWebformHandler.php

<?php

namespace Drupal\maestro_webform\Plugin\WebformHandler;

use Drupal\Core\Form\FormStateInterface;
use Drupal\webform\Plugin\WebformHandlerBase;
use Drupal\webform\WebformSubmissionInterface;
use Drupal\Core\Config\ConfigFactoryInterface;
use Drupal\Core\Logger\LoggerChannelFactoryInterface;
use Drupal\Core\Extension\ModuleHandlerInterface;
use Drupal\Core\Entity\EntityTypeManagerInterface;
use Drupal\webform\WebformSubmissionConditionsValidatorInterface;
use Drupal\webform\WebformTokenManagerInterface;
use Drupal\maestro\Engine\MaestroEngine;
use Drupal\webform\Entity\WebformSubmission;
use Symfony\Component\DependencyInjection\ContainerInterface;

/**
 * Launches a Maestro workflow with a Webform submission.
 *
 * @WebformHandler(
 *   id = "maestro",
 *   label = @Translation("Spawn Maestro Workflow"),
 *   category = @Translation("Workflow"),
 *   description = @Translation("Spawns a Maestro Workflow and passes the newly created webform to the process."),
 *   cardinality = \Drupal\webform\Plugin\WebformHandlerInterface::CARDINALITY_UNLIMITED,
 *   results = \Drupal\webform\Plugin\WebformHandlerInterface::RESULTS_PROCESSED,
 *   submission = \Drupal\webform\Plugin\WebformHandlerInterface::SUBMISSION_OPTIONAL,
 * )
 */
class MaestroWebformHandler extends WebformHandlerBase {
  
  /**
   * The current user.
   *
   * @var \Drupal\Core\Session\AccountInterface
   */
  protected $currentUser;
  
  /**
   * The module handler.
   *
   * @var \Drupal\Core\Extension\ModuleHandlerInterface
   */
  protected $moduleHandler;
  
  /**
   * The language manager.
   *
   * @var \Drupal\Core\Language\LanguageManagerInterface
   */
  protected $languageManager;
  
  /**
   * The configuration object factory.
   *
   * @var \Drupal\Core\Config\ConfigFactoryInterface
   */
  protected $configFactory;
  
  /**
   * A mail manager for sending email.
   *
   * @var \Drupal\Core\Mail\MailManagerInterface
   */
  protected $mailManager;
  
  /**
   * The webform token manager.
   *
   * @var \Drupal\webform\WebformTokenManagerInterface
   */
  protected $tokenManager;
  
  /**
   * The webform theme manager.
   *
   * @var \Drupal\webform\WebformThemeManagerInterface
   */
  protected $themeManager;
  
  /**
   * The webform element plugin manager.
   *
   * @var \Drupal\webform\Plugin\WebformElementManagerInterface
   */
  protected $elementManager;
  
  
  /**
   * {@inheritdoc}
   */
  public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
    $instance = parent::create($container, $configuration, $plugin_id, $plugin_definition);
    $instance->currentUser = $container->get('current_user');
    $instance->moduleHandler = $container->get('module_handler');
    $instance->languageManager = $container->get('language_manager');
    $instance->mailManager = $container->get('plugin.manager.mail');
    $instance->themeManager = $container->get('webform.theme_manager');
    $instance->tokenManager = $container->get('webform.token_manager');
    $instance->elementManager = $container->get('plugin.manager.webform.element');
    return $instance;
  }
  
  /**
   * {@inheritdoc}
   */
  public function getSummary() {
    // Gets the overall settings.
    $summary = parent::getSummary();
    // Lets now fetch the Maestro Template label.
    $template = MaestroEngine::getTemplate($this->configuration['maestro_template']);
    $summary['#settings']['template_label'] = $template->label;
    return $summary;
  }
  
  /**
   * {@inheritdoc}
   */
  public function defaultConfiguration() {
    return [
      'maestro_template' => '',
      'maestro_message_success' => '',
      'maestro_message_failure' => '',
      'maestro_spawn_states' => [WebformSubmissionInterface::STATE_COMPLETED],
    ];
  }
  
  /**
   * {@inheritdoc}
   */
  public function buildConfigurationForm(array $form, FormStateInterface $form_state) {
    $maestro_templates = MaestroEngine::getTemplates();
    $templates = [];
    $templates['none'] = $this->t('Select Template');
    foreach ($maestro_templates as $machine_name => $template) {
      $templates[$machine_name] = $template->label;
    }
    
    $form['maestro_template'] = [
      '#type' => 'select',
      '#title' => $this->t('Maestro Workflow Template'),
      '#description' => $this->t('The template you choose will be spawned when the webform submission occurs.'),
      '#default_value' => $this->configuration['maestro_template'],
      '#options' => $templates,
      '#suffix' => $this->t('Maestro will use a default unique_identifier called "submission" to track this content in the launched workflow.
          Only <b>VALIDATED</b> templates will be spawned.'),
    ];
    
    $form['maestro_message_success'] = [
      '#type' => 'textfield',
      '#title' => $this->t('Message to user on submission'),
      '#description' => $this->t('When a user submits the webform, what message would you like to show the user (Uses a Drupal message). Leave blank for no message.'),
      '#default_value' => $this->configuration['maestro_message_success'],
    ];
    
    $form['maestro_message_failure'] = [
      '#type' => 'textfield',
      '#title' => $this->t('Message to user when a Maestro process fails to start.'),
      '#description' => $this->t('If a Maestro Process fails to start, this message will be displayed to the end user (Uses a Drupal message). Leave blank for no message.'),
      '#default_value' => $this->configuration['maestro_message_failure'],
    ];

    $form['maestro_spawn_states'] = [
      '#type' => 'checkboxes',
      '#title' => $this->t('Choose the webform states to spawn this flow from.'),
      '#description' => $this->t('The selected webform submission states will launch a Maestro flow.'),
      '#options' => [
        WebformSubmissionInterface::STATE_COMPLETED => $this->t('Completed'),
        WebformSubmissionInterface::STATE_DRAFT_CREATED => $this->t('Draft Created'),
        WebformSubmissionInterface::STATE_DRAFT_UPDATED => $this->t('Draft Updated'),
      ],
      '#default_value' => $this->configuration['maestro_spawn_states'],
    ];
    
    return $form;
  }
  
  /**
   * {@inheritdoc}
   */
  public function submitConfigurationForm(array &$form, FormStateInterface $form_state) {
    parent::submitConfigurationForm($form, $form_state);
    $values = $form_state->getValues();
    foreach ($this->configuration as $name => $value) {
      if (isset($values[$name])) {
        $this->configuration[$name] = $values[$name];
      }
    }
  }
  
  /**
   * {@inheritdoc}
   */
  public function submitForm(array &$form, FormStateInterface $form_state, WebformSubmissionInterface $webform_submission) {
    
    // If we have maestro elements in the URL, we know that this is a submission that is as a result of
    // the task being INSIDE of a workflow and not spawned by itself.
    // If we can bind to a template task based on the maestro elements, then we will
    // set a webform submission data value signalling NOT to do any post-save actions if the task
    // has it's webform submission handler option checked off.
    // Make sure the key exists and default to not checked.
    $webform_submission->data['maestro_skip'] = FALSE;
    $maestroElements = $form_state->getValue('maestro');
    if ($maestroElements) {
      $queueID = $maestroElements['queue_id'];
      $templateTask = MaestroEngine::getTemplateTaskByQueueID($queueID);
      if ($templateTask) {
        // $webform_submission->setElementData('maestro_skip', $templateTask['data']['skip_webform_handlers']);
        $webform_submission->data['maestro_skip'] = $templateTask['data']['skip_webform_handlers'];
      }
    }
    
  }
  
  /**
   * {@inheritdoc}
   */
  public function postSave(WebformSubmissionInterface $webform_submission, $update = TRUE) {
    // This is where we launch our maestro workflow based on the configuration options for this webform.
    $webform_state = $webform_submission->getState();
    $maestro_skip = FALSE;
    if (isset($webform_submission->data['maestro_skip'])) {
      if ($webform_submission->data['maestro_skip']) {
        $maestro_skip = TRUE;
      }
    }
    else {
      $maestro_skip = FALSE;
    }

    if(array_search($webform_state, $this->configuration['maestro_spawn_states']) === FALSE) {
      $maestro_skip = TRUE;
    }

    // Only do this on NEW webforms & webforms that are not mid-workflow.
    if (!$maestro_skip) {
      $maestro = new MaestroEngine();
      $processID = $maestro->newProcess($this->configuration['maestro_template']);
      if ($processID !== FALSE) {
        if ($this->configuration['maestro_message_success'] != '') {
          \Drupal::messenger()->addStatus($this->configuration['maestro_message_success']);
        }
        // Set the entity identifier to attach this webform to the maestro workflow template that is put into production.
        if (!MaestroEngine::createEntityIdentifier($processID, $webform_submission->getEntityTypeId(), $webform_submission->bundle(), 'submission', $webform_submission->id())) {
          \Drupal::messenger()->addError($this->configuration['maestro_message_failure']);
          
        }
      }
      // The Maestro new process method failed for some reason.
      else {
        // Only show the message if our config says to do so.
        if ($this->configuration['maestro_message_failure'] != '') {
          \Drupal::messenger()->addError($this->configuration['maestro_message_failure']);
        }
      }
    }
  }
  
  
  /**
   * {@inheritdoc}
   */
  public function isExcluded() {
    return $this->configFactory->get('webform.settings')
    ->get('handler.excluded_handlers.' . $this->pluginDefinition['id']) ? TRUE : FALSE;
  }
  
  /**
   * {@inheritdoc}
   */
  public function isEnabled() {
    return $this->status ? TRUE : FALSE;
  }
  
  
  
}