Issue #3294175 by pcambra: When using the resend ticket receipt, the PDF is...

    arguments: ['@entity_type.manager', '@entity.repository']

    tags:

      - { name: paramconverter }

  commerce_ticketing.print_builder:

    class: Drupal\commerce_ticketing\PrintBuilder

    decorates: entity_print.print_builder

    decoration_priority: 1

    public: false

    arguments: ['@entity_print.renderer_factory', '@event_dispatcher', '@string_translation']

      $print_engine = $this->pluginManager->createSelectedInstance('pdf');

      $config = $this->configFactory->get('entity_print.settings');

      // We need to switch accounts to the customer so we can print the ticket

      // We need to switch accounts to the customer, so we can print the ticket

      // as if we were the user, otherwise it might try to print as anonymous

      // and show blank tickets.

      $this->accountSwitcher->switchTo($customer);

      // PDF generation inline so we don't have to deal with files.

      ob_start();

      (new StreamedResponse(function () use ($ticket, $print_engine, $config) {

        $this->printBuilder->deliverPrintable([$ticket], $print_engine, FALSE, $config->get('default_css'));

      }))->send();

      $contents = ob_get_contents();

      ob_end_clean();

      $contents = $this->printBuilder->deliverPrintableForMail([$ticket], $print_engine, $config->get('default_css'));

      $this->accountSwitcher->switchBack();

      $params['attachment'] = [

<?php

namespace Drupal\commerce_ticketing;

use Drupal\entity_print\Plugin\PrintEngineInterface;

use Drupal\entity_print\PrintBuilder as EntityPrintPrintBuilder;

/**

 * The print builder service.

 */

class PrintBuilder extends EntityPrintPrintBuilder {

  /**

   * {@inheritdoc}

   */

  public function deliverPrintableforMail(array $entities, PrintEngineInterface $print_engine, $use_default_css = TRUE) {

    $this->prepareRenderer($entities, $print_engine, $use_default_css);

    return $print_engine->getBlob();

  }

}