<?php

namespace Drupal\lingotek\Plugin\LingotekFormComponent\BulkAction;

use Drupal\Core\Entity\ContentEntityInterface;
use Drupal\Core\Entity\EntityTypeBundleInfoInterface;
use Drupal\Core\Entity\EntityTypeManagerInterface;
use Drupal\Core\Language\LanguageManagerInterface;
use Drupal\lingotek\Exception\LingotekApiException;
use Drupal\lingotek\Exception\LingotekContentEntityStorageException;
use Drupal\lingotek\Exception\LingotekDocumentNotFoundException;
use Drupal\lingotek\FormComponent\LingotekFormComponentBulkActionBase;
use Drupal\lingotek\FormComponent\LingotekFormComponentBulkActionExecutor;
use Drupal\lingotek\LanguageLocaleMapperInterface;
use Drupal\lingotek\LingotekConfigurationServiceInterface;
use Drupal\lingotek\LingotekContentTranslationServiceInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;

/**
 * Defines a Lingotek bulk action plugin for the check translation operation for
 * a single language.
 *
 * @LingotekFormComponentBulkAction(
 *   id = "download_translation",
 *   title = @Translation("Download %language (%langcode) translation"),
 *   group = @Translation("Download translations"),
 *   weight = 80,
 *   form_ids = {
 *     "lingotek_management",
 *     "lingotek_entity_management",
 *     "lingotek_job_content_entities_management"
 *   },
 *   batch = {
 *     "title" = @Translation("Downloading translations to Lingotek service.")
 *   },
 *   deriver = "Drupal\lingotek\Plugin\LingotekFormComponent\BulkAction\Derivative\LanguageLingotekBulkActionDeriver",
 * )
 */
class DownloadTranslation extends LingotekFormComponentBulkActionBase {

  /**
   * The entity type bundle info service.
   *
   * @var \Drupal\Core\Entity\EntityTypeBundleInfoInterface
   */
  protected $entityTypeBundleInfo;

  /**
   * The language-locale mapper.
   *
   * @var \Drupal\lingotek\LanguageLocaleMapperInterface
   */
  protected $languageLocaleMapper;

  /**
   * DownloadTranslation constructor.
   *
   * @param array $configuration
   *   A configuration array containing information about the plugin instance.
   * @param string $plugin_id
   *   The plugin_id for the plugin instance.
   * @param mixed $plugin_definition
   *   The plugin implementation definition.
   * @param \Drupal\Core\Entity\EntityTypeManagerInterface $entity_type_manager
   *   The entity_type.manager service.
   * @param \Drupal\Core\Language\LanguageManagerInterface $language_manager
   *   The language_manager service.
   * @param \Drupal\lingotek\LanguageLocaleMapperInterface $language_locale_mapper
   *   The language-locale mapper.
   * @param \Drupal\lingotek\LingotekConfigurationServiceInterface $lingotek_configuration
   *   The lingotek.configuration service.
   * @param \Drupal\lingotek\LingotekContentTranslationServiceInterface $translation_service
   *   The lingotek.content_translation service.
   * @param \Drupal\Core\Entity\EntityTypeBundleInfoInterface $entity_type_bundle_info
   *   The entity_type.bundle.info service.
   */
  public function __construct(array $configuration, $plugin_id, $plugin_definition, EntityTypeManagerInterface $entity_type_manager, LanguageManagerInterface $language_manager, LanguageLocaleMapperInterface $language_locale_mapper, LingotekConfigurationServiceInterface $lingotek_configuration, LingotekContentTranslationServiceInterface $translation_service, EntityTypeBundleInfoInterface $entity_type_bundle_info) {
    parent::__construct($configuration, $plugin_id, $plugin_definition, $entity_type_manager, $language_manager, $lingotek_configuration, $translation_service);
    $this->entityTypeBundleInfo = $entity_type_bundle_info;
    $this->languageLocaleMapper = $language_locale_mapper;
  }

  /**
   * {@inheritdoc}
   */
  public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
    return new static(
      $configuration,
      $plugin_id,
      $plugin_definition,
      $container->get('entity_type.manager'),
      $container->get('language_manager'),
      $container->get('lingotek.language_locale_mapper'),
      $container->get('lingotek.configuration'),
      $container->get('lingotek.content_translation'),
      $container->get('entity_type.bundle.info'),
    );
  }

  public function executeSingle(ContentEntityInterface $entity, array $options, LingotekFormComponentBulkActionExecutor $executor, array &$context) {
    $langcode = $this->pluginDefinition['langcode'];
    // We need to reload the entity, just in case we are using the split bulk upload. The metadata isn't true anymore.
    // ToDo: Look for a better way of invalidating already loaded metadata.
    $entity = $this->entityTypeManager->getStorage($entity->getEntityTypeId())->load($entity->id());
    $context['message'] = $this->t('Downloading translation for @type %label in language @language.', ['@type' => $entity->getEntityType()->getLabel(), '%label' => $entity->label(), '@language' => $langcode]);
    $bundleInfos = $this->entityTypeBundleInfo->getBundleInfo($entity->getEntityTypeId());
    if (!$entity->getEntityType()->isTranslatable() || !$bundleInfos[$entity->bundle()]['translatable']) {
      $this->messenger()->addWarning($this->t('Cannot download @type %label translation for @language. That @bundle_label is not enabled for translation.',
        ['@type' => $bundleInfos[$entity->bundle()]['label'], '%label' => $entity->label(), '@bundle_label' => $entity->getEntityType()->getBundleLabel(), '@language' => $langcode]));
      return FALSE;
    }
    if (!$this->lingotekConfiguration->isEnabled($entity->getEntityTypeId(), $entity->bundle())) {
      $this->messenger()->addWarning($this->t('Cannot download @type %label translation for @language. That @bundle_label is not enabled for Lingotek translation.',
        ['@type' => $bundleInfos[$entity->bundle()]['label'], '%label' => $entity->label(), '@bundle_label' => $entity->getEntityType()->getBundleLabel(), '@language' => $langcode]
      ));
      return FALSE;
    }
    $locale = $this->languageLocaleMapper->getLocaleForLangcode($langcode);
    if ($profile = $this->lingotekConfiguration->getEntityProfile($entity, FALSE)) {
      if ($this->translationService->isDownloadQueueEnabled()) {
        if ($this->translationService->enqueueDownload($entity, $locale, ['source' => 'bulk_download_translation'])) {
          $this->messenger()->addStatus($this->t('The translation of @entity_type %title into @locale has been queued for background download.',
            ['@entity_type' => $entity->getEntityTypeId(), '%title' => $entity->label(), '@locale' => $locale]));
          return TRUE;
        }
        $this->messenger()->addError($this->t('The translation of @entity_type %title into @locale could not be queued for background download. Please try again.',
          ['@entity_type' => $entity->getEntityTypeId(), '%title' => $entity->label(), '@locale' => $locale]));
        return FALSE;
      }
      try {
        $this->translationService->downloadDocument($entity, $locale);
      }
      catch (LingotekDocumentNotFoundException $exc) {
        $this->messenger()->addError($this->t('Document @entity_type %title was not found. Please upload again.', ['@entity_type' => $entity->getEntityTypeId(), '%title' => $entity->label()]));
        return FALSE;
      }
      catch (LingotekApiException $exception) {
        $this->messenger()->addError($this->t('The download for @entity_type %title translation failed. Please try again.', ['@entity_type' => $entity->getEntityTypeId(), '%title' => $entity->label()]));
        return FALSE;
      }
      catch (LingotekContentEntityStorageException $storage_exception) {
        if ($storage_exception->isLockTimeout()) {
          $this->logger()->error('The download for @entity_type %title into %locale failed because another translation save is in progress (database lock timeout).',
            ['@entity_type' => $entity->getEntityTypeId(), '%title' => $entity->label(), '%locale' => $locale]);
          $this->messenger()->addError($this->t('The download for @entity_type %title into @locale could not be completed because another translation save is in progress. Please retry in a moment.',
            ['@entity_type' => $entity->getEntityTypeId(), '%title' => $entity->label(), '@locale' => $locale]));
        }
        elseif ($storage_exception->isFieldTooLongError()) {
          $this->logger()->error('The download for @entity_type %title failed because of the length of one field translation (%locale) value: %table.',
            ['@entity_type' => $entity->getEntityTypeId(), '%title' => $entity->label(), '%locale' => $locale, '%table' => $storage_exception->getTable()]);
          $this->messenger()->addError($this->t('The download for @entity_type %title failed because of the length of one field translation (%locale) value: %table.',
            ['@entity_type' => $entity->getEntityTypeId(), '%title' => $entity->label(), '%locale' => $locale, '%table' => $storage_exception->getTable()]));
        }
        else {
          $this->logger()->error('The download for @entity_type %title failed due to a storage error while saving %locale.',
            ['@entity_type' => $entity->getEntityTypeId(), '%title' => $entity->label(), '%locale' => $locale]);
          $this->messenger()->addError($this->t('The download for @entity_type %title into @locale failed while saving translated content. Please retry.',
            ['@entity_type' => $entity->getEntityTypeId(), '%title' => $entity->label(), '@locale' => $locale]));
        }
        return FALSE;
      }
    }
    else {
      $this->messenger()->addWarning($this->t('The @type %label has no profile assigned so it was not processed.',
        ['@type' => $bundleInfos[$entity->bundle()]['label'], '%label' => $entity->label()]));
      return FALSE;
    }
    return TRUE;
  }

}
