<?php

/**
 * @file
 * Token callbacks for the token module.
 */

use Drupal\Core\Entity\ContentEntityInterface;
use Drupal\Core\Entity\FieldableEntityInterface;
use Drupal\Core\Entity\TypedData\EntityDataDefinitionInterface;
use Drupal\Core\Render\BubbleableMetadata;
use Drupal\Core\Render\Element;
use Drupal\Component\Utility\Crypt;
use Drupal\Component\Utility\Html;
use Drupal\Core\TypedData\DataReferenceDefinitionInterface;
use Drupal\Core\Url;
use Drupal\field\FieldStorageConfigInterface;
use Drupal\menu_link_content\MenuLinkContentInterface;
use Drupal\node\Entity\Node;
use Drupal\node\Entity\NodeType;
use Drupal\node\NodeInterface;
use Drupal\system\Entity\Menu;
use Drupal\user\UserInterface;
use Symfony\Cmf\Component\Routing\RouteObjectInterface;
use Drupal\Core\TypedData\PrimitiveInterface;
use Drupal\Core\Field\FieldStorageDefinitionInterface;
use Drupal\Core\Entity\ContentEntityTypeInterface;
use Drupal\image\Entity\ImageStyle;

/**
 * Implements hook_token_info_alter().
 */
function token_token_info_alter(&$info) {
  // Force 'date' type tokens to require input and add a 'current-date' type.
  // @todo Remove when http://drupal.org/node/943028 is fixed.
  $info['types']['date']['needs-data'] = 'date';
  $info['types']['current-date'] = [
    'name' => t('Current date'),
    'description' => t('Tokens related to the current date and time.'),
    'type' => 'date',
  ];

  // Add a 'dynamic' key to any tokens that have chained but dynamic tokens.
  $info['tokens']['date']['custom']['dynamic'] = TRUE;

  // The [file:size] may not always return in kilobytes.
  // @todo Remove when http://drupal.org/node/1193044 is fixed.
  if (!empty($info['tokens']['file']['size'])) {
    $info['tokens']['file']['size']['description'] = t('The size of the file.');
  }

  // Remove deprecated tokens from being listed.
  unset($info['tokens']['node']['tnid']);
  unset($info['tokens']['node']['type']);
  unset($info['tokens']['node']['type-name']);

  // Support 'url' type tokens for core tokens.
  if (isset($info['tokens']['comment']['url']) && \Drupal::moduleHandler()->moduleExists('comment')) {
    $info['tokens']['comment']['url']['type'] = 'url';
  }
  if (isset($info['tokens']['node']['url']) && \Drupal::moduleHandler()->moduleExists('node')) {
    $info['tokens']['node']['url']['type'] = 'url';
  }
  if (isset($info['tokens']['term']['url']) && \Drupal::moduleHandler()->moduleExists('taxonomy')) {
    $info['tokens']['term']['url']['type'] = 'url';
  }
  $info['tokens']['user']['url']['type'] = 'url';

  // Add [token:url] tokens for any URI-able entities.
  $entities = \Drupal::entityTypeManager()->getDefinitions();
  foreach ($entities as $entity => $entity_info) {
    // Do not generate tokens if the entity doesn't define a token type or is
    // not a content entity.
    if (!$entity_info->get('token_type') || (!$entity_info instanceof ContentEntityTypeInterface)) {
      continue;
    }

    $token_type = $entity_info->get('token_type');
    if (!isset($info['types'][$token_type]) || !isset($info['tokens'][$token_type])) {
      // Define tokens for entity type's without their own integration.
      $info['types'][$entity_info->id()] = [
        'name' => $entity_info->getLabel(),
        'needs-data' => $entity_info->id(),
        'module' => 'token',
      ];
    }

    // Add [entity:url] tokens if they do not already exist.
    // @todo Support entity:label
    if (!isset($info['tokens'][$token_type]['url'])) {
      $info['tokens'][$token_type]['url'] = [
        'name' => t('URL'),
        'description' => t('The URL of the @entity.', ['@entity' => mb_strtolower($entity_info->getLabel())]),
        'module' => 'token',
        'type' => 'url',
      ];
    }

    // Add [entity:original] tokens if they do not already exist.
    if (!isset($info['tokens'][$token_type]['original'])) {
      $info['tokens'][$token_type]['original'] = [
        'name' => t('Original @entity', ['@entity' => mb_strtolower($entity_info->getLabel())]),
        'description' => t('The original @entity data if the @entity is being updated or saved.', ['@entity' => mb_strtolower($entity_info->getLabel())]),
        'module' => 'token',
        'type' => $token_type,
      ];
    }
  }

  // Add support for custom date formats.
  // @todo Remove when http://drupal.org/node/1173706 is fixed.
  $date_format_types = \Drupal::entityTypeManager()->getStorage('date_format')->loadMultiple();
  foreach ($date_format_types as $date_format_type => $date_format_type_info) {
    /* @var \Drupal\system\Entity\DateFormat $date_format_type_info */
    if (!isset($info['tokens']['date'][$date_format_type])) {
      $info['tokens']['date'][$date_format_type] = [
        'name' => Html::escape($date_format_type_info->label()),
        'description' => t("A date in '@type' format. (%date)", ['@type' => $date_format_type, '%date' => \Drupal::service('date.formatter')->format(\Drupal::time()->getRequestTime(), $date_format_type)]),
        'module' => 'token',
      ];
    }
  }
}

/**
 * Implements hook_token_info().
 */
function token_token_info() {
  // Node tokens.
  $info['tokens']['node']['source'] = [
    'name' => t('Translation source node'),
    'description' => t("The source node for this current node's translation set."),
    'type' => 'node',
  ];
  $info['tokens']['node']['log'] = [
    'name' => t('Revision log message'),
    'description' => t('The explanation of the most recent changes made to the node.'),
  ];
  $info['tokens']['node']['content-type'] = [
    'name' => t('Content type'),
    'description' => t('The content type of the node.'),
    'type' => 'content-type',
  ];

  // Content type tokens.
  $info['types']['content-type'] = [
    'name' => t('Content types'),
    'description' => t('Tokens related to content types.'),
    'needs-data' => 'node_type',
  ];
  $info['tokens']['content-type']['name'] = [
    'name' => t('Name'),
    'description' => t('The name of the content type.'),
  ];
  $info['tokens']['content-type']['machine-name'] = [
    'name' => t('Machine-readable name'),
    'description' => t('The unique machine-readable name of the content type.'),
  ];
  $info['tokens']['content-type']['description'] = [
    'name' => t('Description'),
    'description' => t('The optional description of the content type.'),
  ];
  $info['tokens']['content-type']['node-count'] = [
    'name' => t('Node count'),
    'description' => t('The number of nodes belonging to the content type.'),
  ];
  $info['tokens']['content-type']['edit-url'] = [
    'name' => t('Edit URL'),
    'description' => t("The URL of the content type's edit page."),
    // 'type' => 'url',
  ];

  // Taxonomy term and vocabulary tokens.
  if (\Drupal::moduleHandler()->moduleExists('taxonomy')) {
    $info['tokens']['term']['edit-url'] = [
      'name' => t('Edit URL'),
      'description' => t("The URL of the taxonomy term's edit page."),
      // 'type' => 'url',
    ];
    $info['tokens']['term']['parents'] = [
      'name' => t('Parents'),
      'description' => t("An array of all the term's parents, starting with the root."),
      'type' => 'array',
    ];
    $info['tokens']['term']['root'] = [
      'name' => t('Root term'),
      'description' => t("The root term of the taxonomy term."),
      'type' => 'term',
    ];

    $info['tokens']['vocabulary']['machine-name'] = [
      'name' => t('Machine-readable name'),
      'description' => t('The unique machine-readable name of the vocabulary.'),
    ];
    $info['tokens']['vocabulary']['edit-url'] = [
      'name' => t('Edit URL'),
      'description' => t("The URL of the vocabulary's edit page."),
      // 'type' => 'url',
    ];
  }

  // File tokens.
  $info['tokens']['file']['basename'] = [
    'name' => t('Base name'),
    'description' => t('The base name of the file.'),
  ];
  $info['tokens']['file']['extension'] = [
    'name' => t('Extension'),
    'description' => t('The extension of the file.'),
  ];
  $info['tokens']['file']['size-raw'] = [
    'name' => t('File byte size'),
    'description' => t('The size of the file, in bytes.'),
  ];

  // User tokens.
  // Add information on the restricted user tokens.
  $info['tokens']['user']['cancel-url'] = [
    'name' => t('Account cancellation URL'),
    'description' => t('The URL of the confirm delete page for the user account.'),
    'restricted' => TRUE,
    // 'type' => 'url',
  ];
  $info['tokens']['user']['one-time-login-url'] = [
    'name' => t('One-time login URL'),
    'description' => t('The URL of the one-time login page for the user account.'),
    'restricted' => TRUE,
    // 'type' => 'url',
  ];
  $info['tokens']['user']['roles'] = [
    'name' => t('Roles'),
    'description' => t('The user roles associated with the user account.'),
    'type' => 'array',
  ];

  // Current user tokens.
  $info['tokens']['current-user']['ip-address'] = [
    'name' => t('IP address'),
    'description' => t('The IP address of the current user.'),
  ];

  // Menu link tokens (work regardless if menu module is enabled or not).
  $info['types']['menu-link'] = [
    'name' => t('Menu links'),
    'description' => t('Tokens related to menu links.'),
    'needs-data' => 'menu-link',
  ];
  $info['tokens']['menu-link']['mlid'] = [
    'name' => t('Link ID'),
    'description' => t('The unique ID of the menu link.'),
  ];
  $info['tokens']['menu-link']['title'] = [
    'name' => t('Title'),
    'description' => t('The title of the menu link.'),
  ];
  $info['tokens']['menu-link']['url'] = [
    'name' => t('URL'),
    'description' => t('The URL of the menu link.'),
    'type' => 'url',
  ];
  $info['tokens']['menu-link']['parent'] = [
    'name' => t('Parent'),
    'description' => t("The menu link's parent."),
    'type' => 'menu-link',
  ];
  $info['tokens']['menu-link']['parents'] = [
    'name' => t('Parents'),
    'description' => t("An array of all the menu link's parents, starting with the root."),
    'type' => 'array',
  ];
  $info['tokens']['menu-link']['root'] = [
    'name' => t('Root'),
    'description' => t("The menu link's root."),
    'type' => 'menu-link',
  ];

  // Current page tokens.
  $info['types']['current-page'] = [
    'name' => t('Current page'),
    'description' => t('Tokens related to the current page request.'),
  ];
  $info['tokens']['current-page']['title'] = [
    'name' => t('Title'),
    'description' => t('The title of the current page.'),
  ];
  $info['tokens']['current-page']['url'] = [
    'name' => t('URL'),
    'description' => t('The URL of the current page.'),
    'type' => 'url',
  ];
  $info['tokens']['current-page']['page-number'] = [
    'name' => t('Page number'),
    'description' => t('The page number of the current page when viewing paged lists.'),
  ];
  $info['tokens']['current-page']['query'] = [
    'name' => t('Query string value'),
    'description' => t('The value of a specific query string field of the current page.'),
    'dynamic' => TRUE,
  ];

  // URL tokens.
  $info['types']['url'] = [
    'name' => t('URL'),
    'description' => t('Tokens related to URLs.'),
    'needs-data' => 'path',
  ];
  $info['tokens']['url']['path'] = [
    'name' => t('Path'),
    'description' => t('The path component of the URL.'),
  ];
  $info['tokens']['url']['relative'] = [
    'name' => t('Relative URL'),
    'description' => t('The relative URL.'),
  ];
  $info['tokens']['url']['absolute'] = [
    'name' => t('Absolute URL'),
    'description' => t('The absolute URL.'),
  ];
  $info['tokens']['url']['brief'] = [
    'name' => t('Brief URL'),
    'description' => t('The URL without the protocol and trailing backslash.'),
  ];
  $info['tokens']['url']['unaliased'] = [
    'name' => t('Unaliased URL'),
    'description' => t('The unaliased URL.'),
    'type' => 'url',
  ];
  $info['tokens']['url']['args'] = [
    'name' => t('Arguments'),
    'description' => t("The specific argument of the current page (e.g. 'arg:1' on the page 'node/1' returns '1')."),
    'type' => 'array',
  ];

  // Array tokens.
  $info['types']['array'] = [
    'name' => t('Array'),
    'description' => t('Tokens related to arrays of strings.'),
    'needs-data' => 'array',
    'nested' => TRUE,
  ];
  $info['tokens']['array']['first'] = [
    'name' => t('First'),
    'description' => t('The first element of the array.'),
  ];
  $info['tokens']['array']['last'] = [
    'name' => t('Last'),
    'description' => t('The last element of the array.'),
  ];
  $info['tokens']['array']['count'] = [
    'name' => t('Count'),
    'description' => t('The number of elements in the array.'),
  ];
  $info['tokens']['array']['reversed'] = [
    'name' => t('Reversed'),
    'description' => t('The array reversed.'),
    'type' => 'array',
  ];
  $info['tokens']['array']['keys'] = [
    'name' => t('Keys'),
    'description' => t('The array of keys of the array.'),
    'type' => 'array',
  ];
  $info['tokens']['array']['join'] = [
    'name' => t('Imploded'),
    'description' => t('The values of the array joined together with a custom string in-between each value.'),
    'dynamic' => TRUE,
  ];
  $info['tokens']['array']['value'] = [
    'name' => t('Value'),
    'description' => t('The specific value of the array.'),
    'dynamic' => TRUE,
  ];

  // Random tokens.
  $info['types']['random'] = [
    'name' => t('Random'),
    'description' => t('Tokens related to random data.'),
  ];
  $info['tokens']['random']['number'] = [
    'name' => t('Number'),
    'description' => t('A random number from 0 to @max.', ['@max' => mt_getrandmax()]),
  ];
  $info['tokens']['random']['hash'] = [
    'name' => t('Hash'),
    'description' => t('A random hash. The possible hashing algorithms are: @hash-algos.', ['@hash-algos' => implode(', ', hash_algos())]),
    'dynamic' => TRUE,
  ];

  // Define image_with_image_style token type.
  if (\Drupal::moduleHandler()->moduleExists('image')) {
    $info['types']['image_with_image_style'] = [
      'name' => t('Image with image style'),
      'needs-data' => 'image_with_image_style',
      'module' => 'token',
      'nested' => TRUE,
    ];

    // Provide tokens for the ImageStyle attributes.
    $info['tokens']['image_with_image_style']['mimetype'] = [
      'name' => t('MIME type'),
      'description' => t('The MIME type (image/png, image/bmp, etc.) of the image.'),
    ];
    $info['tokens']['image_with_image_style']['filesize'] = [
      'name' => t('File size'),
      'description' => t('The file size of the image.'),
    ];
    $info['tokens']['image_with_image_style']['height'] = [
      'name' => t('Height'),
      'description' => t('The height the image, in pixels.'),
    ];
    $info['tokens']['image_with_image_style']['width'] = [
      'name' => t('Width'),
      'description' => t('The width of the image, in pixels.'),
    ];
    $info['tokens']['image_with_image_style']['uri'] = [
      'name' => t('URI'),
      'description' => t('The URI to the image.'),
    ];
    $info['tokens']['image_with_image_style']['url'] = [
      'name' => t('URL'),
      'description' => t('The URL to the image.'),
    ];
  }

  return $info;
}

/**
 * Implements hook_tokens().
 */
function token_tokens($type, array $tokens, array $data = [], array $options = [], BubbleableMetadata $bubbleable_metadata) {
  $replacements = [];
  $language_manager = \Drupal::languageManager();
  $url_options = ['absolute' => TRUE];
  if (isset($options['langcode'])) {
    $url_options['language'] = $language_manager->getLanguage($options['langcode']);
    $langcode = $options['langcode'];
  }
  else {
    $langcode = $language_manager->getCurrentLanguage()->getId();
  }

  // Date tokens.
  if ($type == 'date') {
    $date = !empty($data['date']) ? $data['date'] : \Drupal::time()->getRequestTime();

    // @todo Remove when http://drupal.org/node/1173706 is fixed.
    $date_format_types = \Drupal::entityTypeManager()->getStorage('date_format')->loadMultiple();
    foreach ($tokens as $name => $original) {
      if (isset($date_format_types[$name]) && _token_module('date', $name) == 'token') {
        $replacements[$original] = \Drupal::service('date.formatter')->format($date, $name, '', NULL, $langcode);
      }
    }
  }

  // Current date tokens.
  // @todo Remove when http://drupal.org/node/943028 is fixed.
  if ($type == 'current-date') {
    $replacements += \Drupal::token()->generate('date', $tokens, ['date' => \Drupal::time()->getRequestTime()], $options, $bubbleable_metadata);
  }

  // Comment tokens.
  if ($type == 'comment' && !empty($data['comment'])) {
    /* @var \Drupal\comment\CommentInterface $comment */
    $comment = $data['comment'];

    // Chained token relationships.
    if (($url_tokens = \Drupal::token()->findWithPrefix($tokens, 'url'))) {
      // Add fragment to url options.
      $replacements += \Drupal::token()->generate('url', $url_tokens, ['url' => $comment->toUrl('canonical', ['fragment' => "comment-{$comment->id()}"])], $options, $bubbleable_metadata);
    }
  }

  // Node tokens.
  if ($type == 'node' && !empty($data['node'])) {
    /* @var \Drupal\node\NodeInterface $node */
    $node = $data['node'];

    foreach ($tokens as $name => $original) {
      switch ($name) {
        case 'log':
          $replacements[$original] = (string) $node->revision_log->value;
          break;

        case 'content-type':
          $type_name = \Drupal::entityTypeManager()->getStorage('node_type')->load($node->getType())->label();
          $replacements[$original] = $type_name;
          break;
      }
    }

    // Chained token relationships.
    if (($parent_tokens = \Drupal::token()->findWithPrefix($tokens, 'source')) && $source_node = $node->getUntranslated()) {
      $replacements += \Drupal::token()->generate('node', $parent_tokens, ['node' => $source_node], $options, $bubbleable_metadata);
    }
    if (($node_type_tokens = \Drupal::token()->findWithPrefix($tokens, 'content-type')) && $node_type = NodeType::load($node->bundle())) {
      $replacements += \Drupal::token()->generate('content-type', $node_type_tokens, ['node_type' => $node_type], $options, $bubbleable_metadata);
    }
    if (($url_tokens = \Drupal::token()->findWithPrefix($tokens, 'url'))) {
      $replacements += \Drupal::token()->generate('url', $url_tokens, ['url' => $node->toUrl()], $options, $bubbleable_metadata);
    }
  }

  // Content type tokens.
  if ($type == 'content-type' && !empty($data['node_type'])) {
    /* @var \Drupal\node\NodeTypeInterface $node_type */
    $node_type = $data['node_type'];

    foreach ($tokens as $name => $original) {
      switch ($name) {
        case 'name':
          $replacements[$original] = $node_type->label();
          break;

        case 'machine-name':
          $replacements[$original] = $node_type->id();
          break;

        case 'description':
          $replacements[$original] = $node_type->getDescription();
          break;

        case 'node-count':
          $count = \Drupal::entityQueryAggregate('node')
            ->aggregate('nid', 'COUNT')
            ->condition('type', $node_type->id())
            ->execute();
          $replacements[$original] = (int) $count;
          break;

        case 'edit-url':
          $replacements[$original] = $node_type->toUrl('edit-form', $url_options)->toString();
          break;
      }
    }
  }

  // Taxonomy term tokens.
  if ($type == 'term' && !empty($data['term'])) {
    /* @var \Drupal\taxonomy\TermInterface $term */
    $term = $data['term'];

    /** @var \Drupal\taxonomy\TermStorageInterface $term_storage */
    $term_storage = \Drupal::entityTypeManager()->getStorage('taxonomy_term');

    foreach ($tokens as $name => $original) {
      switch ($name) {
        case 'edit-url':
          $replacements[$original] = Url::fromRoute('entity.taxonomy_term.edit_form', ['taxonomy_term' => $term->id()], $url_options)->toString();
          break;

        case 'parents':
          if ($parents = token_taxonomy_term_load_all_parents($term->id(), $langcode)) {
            $replacements[$original] = token_render_array($parents, $options);
          }
          break;

        case 'root':
          $parents = $term_storage->loadAllParents($term->id());
          $root_term = end($parents);
          if ($root_term->id() != $term->id()) {
            $root_term = \Drupal::service('entity.repository')->getTranslationFromContext($root_term, $langcode);
            $replacements[$original] = $root_term->label();
          }
          break;
      }
    }

    // Chained token relationships.
    if (($url_tokens = \Drupal::token()->findWithPrefix($tokens, 'url'))) {
      $replacements += \Drupal::token()->generate('url', $url_tokens, ['url' => $term->toUrl()], $options, $bubbleable_metadata);
    }
    // [term:parents:*] chained tokens.
    if ($parents_tokens = \Drupal::token()->findWithPrefix($tokens, 'parents')) {
      if ($parents = token_taxonomy_term_load_all_parents($term->id(), $langcode)) {
        $replacements += \Drupal::token()->generate('array', $parents_tokens, ['array' => $parents], $options, $bubbleable_metadata);
      }
    }
    if ($root_tokens = \Drupal::token()->findWithPrefix($tokens, 'root')) {
      $parents = $term_storage->loadAllParents($term->id());
      $root_term = end($parents);
      if ($root_term->tid != $term->id()) {
        $replacements += \Drupal::token()->generate('term', $root_tokens, ['term' => $root_term], $options, $bubbleable_metadata);
      }
    }
  }

  // Vocabulary tokens.
  if ($type == 'vocabulary' && !empty($data['vocabulary'])) {
    $vocabulary = $data['vocabulary'];

    foreach ($tokens as $name => $original) {
      switch ($name) {
        case 'machine-name':
          $replacements[$original] = $vocabulary->id();
          break;

        case 'edit-url':
          $replacements[$original] = Url::fromRoute('entity.taxonomy_vocabulary.edit_form', ['taxonomy_vocabulary' => $vocabulary->id()], $url_options)->toString();
          break;
      }
    }
  }

  // File tokens.
  if ($type == 'file' && !empty($data['file'])) {
    $file = $data['file'];

    foreach ($tokens as $name => $original) {
      switch ($name) {
        case 'basename':
          $basename = pathinfo($file->uri->value, PATHINFO_BASENAME);
          $replacements[$original] = $basename;
          break;

        case 'extension':
          $extension = pathinfo($file->uri->value, PATHINFO_EXTENSION);
          $replacements[$original] = $extension;
          break;

        case 'size-raw':
          $replacements[$original] = (int) $file->filesize->value;
          break;
      }
    }
  }

  // User tokens.
  if ($type == 'user' && !empty($data['user'])) {
    /* @var \Drupal\user\UserInterface $account */
    $account = $data['user'];

    foreach ($tokens as $name => $original) {
      switch ($name) {
        case 'picture':
          if ($account instanceof UserInterface && $account->hasField('user_picture')) {
            /** @var \Drupal\Core\Render\RendererInterface $renderer */
            $renderer = \Drupal::service('renderer');
            $output = [
              '#theme' => 'user_picture',
              '#account' => $account,
            ];
            $replacements[$original] = $renderer->renderPlain($output);
          }
          break;

        case 'roles':
          $roles = $account->getRoles();
          $roles_names = array_combine($roles, $roles);
          $replacements[$original] = token_render_array($roles_names, $options);
          break;
      }
    }

    // Chained token relationships.
    if ($account instanceof UserInterface && $account->hasField('user_picture') && ($picture_tokens = \Drupal::token()->findWithPrefix($tokens, 'picture'))) {
      $replacements += \Drupal::token()->generate('file', $picture_tokens, ['file' => $account->user_picture->entity], $options, $bubbleable_metadata);
    }
    if ($url_tokens = \Drupal::token()->findWithPrefix($tokens, 'url')) {
      $replacements += \Drupal::token()->generate('url', $url_tokens, ['url' => $account->toUrl()], $options, $bubbleable_metadata);
    }
    if ($role_tokens = \Drupal::token()->findWithPrefix($tokens, 'roles')) {
      $roles = $account->getRoles();
      $roles_names = array_combine($roles, $roles);
      $replacements += \Drupal::token()->generate('array', $role_tokens, ['array' => $roles_names], $options, $bubbleable_metadata);
    }
  }

  // Current user tokens.
  if ($type == 'current-user') {
    foreach ($tokens as $name => $original) {
      switch ($name) {
        case 'ip-address':
          $ip = \Drupal::request()->getClientIp();
          $replacements[$original] = $ip;
          break;
      }
    }
  }

  // Menu link tokens.
  if ($type == 'menu-link' && !empty($data['menu-link'])) {
    /** @var \Drupal\Core\Menu\MenuLinkInterface $link */
    $link = $data['menu-link'];
    /** @var \Drupal\Core\Menu\MenuLinkManagerInterface $menu_link_manager */
    $menu_link_manager = \Drupal::service('plugin.manager.menu.link');

    if ($link instanceof MenuLinkContentInterface) {
      $link = $menu_link_manager->createInstance($link->getPluginId());
    }

    foreach ($tokens as $name => $original) {
      switch ($name) {
        case 'id':
          $replacements[$original] = $link->getPluginId();
          break;

        case 'title':
          $replacements[$original] = token_menu_link_translated_title($link, $langcode);
          break;

        case 'url':
          $replacements[$original] = $link->getUrlObject()->setAbsolute()->toString();
          break;

        case 'parent':
          /** @var \Drupal\Core\Menu\MenuLinkInterface $parent */
          if ($link->getParent() && $parent = $menu_link_manager->createInstance($link->getParent())) {
            $replacements[$original] = token_menu_link_translated_title($parent, $langcode);
          }
          break;

        case 'parents':
          if ($parents = token_menu_link_load_all_parents($link->getPluginId(), $langcode)) {
            $replacements[$original] = token_render_array($parents, $options);
          }
          break;

        case 'root';
          if ($link->getParent() && $parent_ids = array_keys(token_menu_link_load_all_parents($link->getPluginId(), $langcode))) {
            $root = $menu_link_manager->createInstance(array_shift($parent_ids));
            $replacements[$original] = token_menu_link_translated_title($root, $langcode);
          }
          break;
      }
    }

    // Chained token relationships.
    /** @var \Drupal\Core\Menu\MenuLinkInterface $parent */
    if ($link->getParent() && ($parent_tokens = \Drupal::token()->findWithPrefix($tokens, 'parent')) && $parent = $menu_link_manager->createInstance($link->getParent())) {
      $replacements += \Drupal::token()->generate('menu-link', $parent_tokens, ['menu-link' => $parent], $options, $bubbleable_metadata);
    }
    // [menu-link:parents:*] chained tokens.
    if ($parents_tokens = \Drupal::token()->findWithPrefix($tokens, 'parents')) {
      if ($parents = token_menu_link_load_all_parents($link->getPluginId(), $langcode)) {
        $replacements += \Drupal::token()->generate('array', $parents_tokens, ['array' => $parents], $options, $bubbleable_metadata);
      }
    }
    if (($root_tokens = \Drupal::token()->findWithPrefix($tokens, 'root')) && $link->getParent() && $parent_ids = array_keys(token_menu_link_load_all_parents($link->getPluginId(), $langcode))) {
      $root = $menu_link_manager->createInstance(array_shift($parent_ids));
      $replacements += \Drupal::token()->generate('menu-link', $root_tokens, ['menu-link' => $root], $options, $bubbleable_metadata);
    }
    if ($url_tokens = \Drupal::token()->findWithPrefix($tokens, 'url')) {
      $replacements += \Drupal::token()->generate('url', $url_tokens, ['url' => $link->getUrlObject()], $options, $bubbleable_metadata);
    }

  }

  // Current page tokens.
  if ($type == 'current-page') {
    $request = \Drupal::request();
    foreach ($tokens as $name => $original) {
      switch ($name) {
        case 'title':
          $route = $request->attributes->get(RouteObjectInterface::ROUTE_OBJECT);
          if ($route) {
            $title = \Drupal::service('title_resolver')->getTitle($request, $route);
            $replacements[$original] = token_render_array_value($title);
          }
          break;

        case 'url':
          $bubbleable_metadata->addCacheContexts(['url.path']);
          try {
            $url = Url::createFromRequest($request)->setOptions($url_options);
          }
          catch (\Exception $e) {
            // Url::createFromRequest() can fail, e.g. on 404 pages.
            // Fall back and try again with Url::fromUserInput().
            try {
              $url = Url::fromUserInput($request->getPathInfo(), $url_options);
            }
            catch (\Exception $e) {
              // Instantiation would fail again on malformed urls.
            }
          }
          if (isset($url)) {
            $replacements[$original] = $url->toString();
          }
          break;

        case 'page-number':
          if ($page = $request->query->get('page')) {
            // @see PagerDefault::execute()
            $pager_page_array = explode(',', $page);
            $page = $pager_page_array[0];
          }
          $replacements[$original] = (int) $page + 1;
          break;
      }
    }

    // @deprecated
    // [current-page:arg] dynamic tokens.
    if ($arg_tokens = \Drupal::token()->findWithPrefix($tokens, 'arg')) {
      $path = ltrim(\Drupal::service('path.current')->getPath(), '/');
      // Make sure its a system path.
      $path = \Drupal::service('path.alias_manager')->getPathByAlias($path);
      foreach ($arg_tokens as $name => $original) {
        $parts = explode('/', $path);
        if (is_numeric($name) && isset($parts[$name])) {
          $replacements[$original] = $parts[$name];
        }
      }
    }

    // [current-page:query] dynamic tokens.
    if ($query_tokens = \Drupal::token()->findWithPrefix($tokens, 'query')) {
      $bubbleable_metadata->addCacheContexts(['url.query_args']);
      foreach ($query_tokens as $name => $original) {
        if (\Drupal::request()->query->has($name)) {
          $value = \Drupal::request()->query->get($name);
          $replacements[$original] = $value;
        }
      }
    }

    // Chained token relationships.
    if ($url_tokens = \Drupal::token()->findWithPrefix($tokens, 'url')) {
      $url = NULL;
      try {
        $url = Url::createFromRequest($request)->setOptions($url_options);
      }
      catch (\Exception $e) {
        // Url::createFromRequest() can fail, e.g. on 404 pages.
        // Fall back and try again with Url::fromUserInput().
        try {
          $url = Url::fromUserInput($request->getPathInfo(), $url_options);
        }
        catch (\Exception $e) {
          // Instantiation would fail again on malformed urls.
        }
      }
      // Add cache contexts to ensure this token functions on a per-path basis
      $bubbleable_metadata->addCacheContexts(['url.path']);
      $replacements += \Drupal::token()->generate('url', $url_tokens, ['url' => $url], $options, $bubbleable_metadata);
    }
  }

  // URL tokens.
  if ($type == 'url' && !empty($data['url'])) {
    /** @var \Drupal\Core\Url $url */
    $url = $data['url'];
    // To retrieve the correct path, modify a copy of the Url object.
    $path_url = clone $url;
    $path = '/';
    // Ensure the URL is routed to avoid throwing an exception.
    if ($url->isRouted()) {
      $path .= $path_url->setAbsolute(FALSE)->setOption('fragment', NULL)->getInternalPath();
    }

    foreach ($tokens as $name => $original) {
      switch ($name) {
        case 'path':
          $value = !($url->getOption('alias')) ? \Drupal::service('path.alias_manager')->getAliasByPath($path, $langcode) : $path;
          $replacements[$original] = $value;
          break;

        case 'alias':
          // @deprecated
          $alias = \Drupal::service('path.alias_manager')->getAliasByPath($path, $langcode);
          $replacements[$original] = $alias;
          break;

        case 'absolute':
          $replacements[$original] = $url->setAbsolute()->toString();
          break;

        case 'relative':
          $replacements[$original] = $url->setAbsolute(FALSE)->toString();
          break;

        case 'brief':
          $replacements[$original] = preg_replace(['!^https?://!', '!/$!'], '', $url->setAbsolute()->toString());
          break;

        case 'unaliased':
          $unaliased = clone $url;
          $replacements[$original] = $unaliased->setAbsolute()->setOption('alias', TRUE)->toString();
          break;

        case 'args':
          $value = !($url->getOption('alias')) ? \Drupal::service('path.alias_manager')->getAliasByPath($path, $langcode) : $path;
          $replacements[$original] = token_render_array(explode('/', $value), $options);
          break;
      }
    }

    // [url:args:*] chained tokens.
    if ($arg_tokens = \Drupal::token()->findWithPrefix($tokens, 'args')) {
      $value = !($url->getOption('alias')) ? \Drupal::service('path.alias_manager')->getAliasByPath($path, $langcode) : $path;
      $replacements += \Drupal::token()->generate('array', $arg_tokens, ['array' => explode('/', ltrim($value, '/'))], $options, $bubbleable_metadata);
    }

    // [url:unaliased:*] chained tokens.
    if ($unaliased_tokens = \Drupal::token()->findWithPrefix($tokens, 'unaliased')) {
      $url->setOption('alias', TRUE);
      $replacements += \Drupal::token()->generate('url', $unaliased_tokens, ['url' => $url], $options, $bubbleable_metadata);
    }
  }

  // Entity tokens.
  if (!empty($data[$type]) && $entity_type = \Drupal::service('token.entity_mapper')->getEntityTypeForTokenType($type)) {
    /* @var \Drupal\Core\Entity\EntityInterface $entity */
    $entity = $data[$type];

    foreach ($tokens as $name => $original) {
      switch ($name) {
        case 'url':
          if (_token_module($type, 'url') === 'token' && !$entity->isNew() && $entity->hasLinkTemplate('canonical')) {
            $replacements[$original] = $entity->toUrl('canonical')->toString();
          }
          break;

        case 'original':
          if (_token_module($type, 'original') == 'token' && !empty($entity->original)) {
            $label = $entity->original->label();
            $replacements[$original] = $label;
          }
          break;
      }
    }

    // [entity:url:*] chained tokens.
    if (($url_tokens = \Drupal::token()->findWithPrefix($tokens, 'url')) && _token_module($type, 'url') == 'token') {
      $replacements += \Drupal::token()->generate('url', $url_tokens, ['url' => $entity->toUrl()], $options, $bubbleable_metadata);
    }

    // [entity:original:*] chained tokens.
    if (($original_tokens = \Drupal::token()->findWithPrefix($tokens, 'original')) && _token_module($type, 'original') == 'token' && !empty($entity->original)) {
      $replacements += \Drupal::token()->generate($type, $original_tokens, [$type => $entity->original], $options, $bubbleable_metadata);
    }

    // Pass through to an generic 'entity' token type generation.
    $entity_data = [
      'entity_type' => $entity_type,
      'entity' => $entity,
      'token_type' => $type,
    ];
    // @todo Investigate passing through more data like everything from entity_extract_ids().
    $replacements += \Drupal::token()->generate('entity', $tokens, $entity_data, $options, $bubbleable_metadata);
  }

  // Array tokens.
  if ($type == 'array' && !empty($data['array']) && is_array($data['array'])) {
    $array = $data['array'];

    $sort = isset($options['array sort']) ? $options['array sort'] : TRUE;
    $keys = token_element_children($array, $sort);

    /** @var \Drupal\Core\Render\RendererInterface $renderer */
    $renderer = \Drupal::service('renderer');

    foreach ($tokens as $name => $original) {
      switch ($name) {
        case 'first':
          $value = $array[$keys[0]];
          $value = is_array($value) ? $renderer->renderPlain($value) : (string) $value;
          $replacements[$original] = $value;
          break;

        case 'last':
          $value = $array[$keys[count($keys) - 1]];
          $value = is_array($value) ? $renderer->renderPlain($value) : (string) $value;
          $replacements[$original] = $value;
          break;

        case 'count':
          $replacements[$original] = count($keys);
          break;

        case 'keys':
          $replacements[$original] = token_render_array($keys, $options);
          break;

        case 'reversed':
          $reversed = array_reverse($array, TRUE);
          $replacements[$original] = token_render_array($reversed, $options);
          break;

        case 'join':
          $replacements[$original] = token_render_array($array, ['join' => ''] + $options);
          break;
      }
    }

    // [array:value:*] dynamic tokens.
    if ($value_tokens = \Drupal::token()->findWithPrefix($tokens, 'value')) {
      foreach ($value_tokens as $key => $original) {
        if ($key[0] !== '#' && isset($array[$key])) {
          $replacements[$original] = token_render_array_value($array[$key], $options);
        }
      }
    }

    // [array:join:*] dynamic tokens.
    if ($join_tokens = \Drupal::token()->findWithPrefix($tokens, 'join')) {
      foreach ($join_tokens as $join => $original) {
        $replacements[$original] = token_render_array($array, ['join' => $join] + $options);
      }
    }

    // [array:keys:*] chained tokens.
    if ($key_tokens = \Drupal::token()->findWithPrefix($tokens, 'keys')) {
      $replacements += \Drupal::token()->generate('array', $key_tokens, ['array' => $keys], $options, $bubbleable_metadata);
    }

    // [array:reversed:*] chained tokens.
    if ($reversed_tokens = \Drupal::token()->findWithPrefix($tokens, 'reversed')) {
      $replacements += \Drupal::token()->generate('array', $reversed_tokens, ['array' => array_reverse($array, TRUE)], ['array sort' => FALSE] + $options, $bubbleable_metadata);
    }

    // @todo Handle if the array values are not strings and could be chained.
  }

  // Random tokens.
  if ($type == 'random') {
    foreach ($tokens as $name => $original) {
      switch ($name) {
        case 'number':
          $replacements[$original] = mt_rand();
          break;
      }
    }

    // [custom:hash:*] dynamic token.
    if ($hash_tokens = \Drupal::token()->findWithPrefix($tokens, 'hash')) {
      $algos = hash_algos();
      foreach ($hash_tokens as $name => $original) {
        if (in_array($name, $algos)) {
          $replacements[$original] = hash($name, Crypt::randomBytes(55));
        }
      }
    }
  }

  // If $type is a token type, $data[$type] is empty but $data[$entity_type] is
  // not, re-run token replacements.
  if (empty($data[$type]) && ($entity_type = \Drupal::service('token.entity_mapper')->getEntityTypeForTokenType($type)) && $entity_type != $type && !empty($data[$entity_type]) && empty($options['recursive'])) {
    $data[$type] = $data[$entity_type];
    $options['recursive'] = TRUE;
    $replacements += \Drupal::moduleHandler()->invokeAll('tokens', [$type, $tokens, $data, $options, $bubbleable_metadata]);
  }

  // If the token type specifics a 'needs-data' value, and the value is not
  // present in $data, then throw an error.
  if (!empty($GLOBALS['drupal_test_info']['test_run_id'])) {
    // Only check when tests are running.
    $type_info = \Drupal::token()->getTypeInfo($type);
    if (!empty($type_info['needs-data']) && !isset($data[$type_info['needs-data']])) {
      trigger_error(t('Attempting to perform token replacement for token type %type without required data', ['%type' => $type]), E_USER_WARNING);
    }
  }

  return $replacements;
}

/**
 * Implements hook_token_info() on behalf of book.module.
 */
function book_token_info() {
  $info['types']['book'] = [
    'name' => t('Book'),
    'description' => t('Tokens related to books.'),
    'needs-data' => 'book',
  ];

  $info['tokens']['book']['title'] = [
    'name' => t('Title'),
    'description' => t('Title of the book.'),
  ];
  $info['tokens']['book']['author'] = [
    'name' => t('Author'),
    'description' => t('The author of the book.'),
    'type' => 'user',
  ];
  $info['tokens']['book']['root'] = [
    'name' => t('Root'),
    'description' => t('Top level of the book.'),
    'type' => 'node',
  ];
  $info['tokens']['book']['parent'] = [
    'name' => t('Parent'),
    'description' => t('Parent of the current page.'),
    'type' => 'node',
  ];
  $info['tokens']['book']['parents'] = [
    'name' => t('Parents'),
    'description' => t("An array of all the node's parents, starting with the root."),
    'type' => 'array',
  ];

  $info['tokens']['node']['book'] = [
    'name' => t('Book'),
    'description' => t('The book page associated with the node.'),
    'type' => 'book',
  ];
  return $info;
}

/**
 * Implements hook_tokens() on behalf of book.module.
 */
function book_tokens($type, $tokens, array $data = [], array $options = [], BubbleableMetadata $bubbleable_metadata) {
  $replacements = [];

  // Node tokens.
  if ($type == 'node' && !empty($data['node'])) {
    $book = $data['node']->book;

    if (!empty($book['bid'])) {
      if ($book_tokens = \Drupal::token()->findWithPrefix($tokens, 'book')) {
        $child_node = Node::load($book['nid']);
        $replacements += \Drupal::token()->generate('book', $book_tokens, ['book' => $child_node], $options, $bubbleable_metadata);
      }
    }
  }
  // Book tokens.
  elseif ($type == 'book' && !empty($data['book'])) {
    $book = $data['book']->book;

    if (!empty($book['bid'])) {
      $book_node = Node::load($book['bid']);

      foreach ($tokens as $name => $original) {
        switch ($name) {
          case 'root':
          case 'title':
            $replacements[$original] = $book_node->getTitle();
            break;

          case 'parent':
            if (!empty($book['pid'])) {
              $parent_node = Node::load($book['pid']);
              $replacements[$original] = $parent_node->getTitle();
            }
            break;

          case 'parents':
            if ($parents = token_book_load_all_parents($book)) {
              $replacements[$original] = token_render_array($parents, $options);
            }
            break;
        }
      }

      if ($book_tokens = \Drupal::token()->findWithPrefix($tokens, 'author')) {
        $replacements += \Drupal::token()->generate('user', $book_tokens, ['user' => $book_node->getOwner()], $options, $bubbleable_metadata);
      }
      if ($book_tokens = \Drupal::token()->findWithPrefix($tokens, 'root')) {
        $replacements += \Drupal::token()->generate('node', $book_tokens, ['node' => $book_node], $options, $bubbleable_metadata);
      }
      if (!empty($book['pid']) && $book_tokens = \Drupal::token()->findWithPrefix($tokens, 'parent')) {
        $parent_node = Node::load($book['pid']);
        $replacements += \Drupal::token()->generate('node', $book_tokens, ['node' => $parent_node], $options, $bubbleable_metadata);
      }
      if ($book_tokens = \Drupal::token()->findWithPrefix($tokens, 'parents')) {
        $parents = token_book_load_all_parents($book);
        $replacements += \Drupal::token()->generate('array', $book_tokens, ['array' => $parents], $options, $bubbleable_metadata);
      }
    }
  }

  return $replacements;
}

/**
 * Implements hook_token_info() on behalf of menu_ui.module.
 */
function menu_ui_token_info() {
  // Menu tokens.
  $info['types']['menu'] = [
    'name' => t('Menus'),
    'description' => t('Tokens related to menus.'),
    'needs-data' => 'menu',
  ];
  $info['tokens']['menu']['name'] = [
    'name' => t('Name'),
    'description' => t("The name of the menu."),
  ];
  $info['tokens']['menu']['machine-name'] = [
    'name' => t('Machine-readable name'),
    'description' => t("The unique machine-readable name of the menu."),
  ];
  $info['tokens']['menu']['description'] = [
    'name' => t('Description'),
    'description' => t('The optional description of the menu.'),
  ];
  $info['tokens']['menu']['menu-link-count'] = [
    'name' => t('Menu link count'),
    'description' => t('The number of menu links belonging to the menu.'),
  ];
  $info['tokens']['menu']['edit-url'] = [
    'name' => t('Edit URL'),
    'description' => t("The URL of the menu's edit page."),
  ];

  $info['tokens']['menu-link']['menu'] = [
    'name' => t('Menu'),
    'description' => t('The menu of the menu link.'),
    'type' => 'menu',
  ];
  $info['tokens']['menu-link']['edit-url'] = [
    'name' => t('Edit URL'),
    'description' => t("The URL of the menu link's edit page."),
  ];
  $info['tokens']['node']['menu-link'] = [
    'name' => t('Menu link'),
    'description' => t("The menu link for this node."),
    'type' => 'menu-link',
  ];

  return $info;
}

/**
 * Implements hook_tokens() on behalf of menu_ui.module.
 */
function menu_ui_tokens($type, $tokens, array $data = [], array $options = [], BubbleableMetadata $bubbleable_metadata) {
  $replacements = [];

  /** @var \Drupal\Core\Menu\MenuLinkManagerInterface $menu_link_manager */
  $menu_link_manager = \Drupal::service('plugin.manager.menu.link');

  $url_options = ['absolute' => TRUE];
  if (isset($options['langcode'])) {
    $url_options['language'] = \Drupal::languageManager()->getLanguage($options['langcode']);
    $langcode = $options['langcode'];
  }
  else {
    $langcode = NULL;
  }

  // Node tokens.
  if ($type == 'node' && !empty($data['node'])) {
    /** @var \Drupal\node\NodeInterface $node */
    $node = $data['node'];

    foreach ($tokens as $name => $original) {
      switch ($name) {
        case 'menu-link':
          // On node-form save we populate a calculated field with a menu_link
          // references.
          // @see token_node_menu_link_submit()
          if ($node->getFieldDefinition('menu_link') && $menu_link = $node->menu_link->entity) {
            /** @var \Drupal\menu_link_content\MenuLinkContentInterface $menu_link */
            $replacements[$original] = $menu_link->getTitle();
          }
          else {
            $url = $node->toUrl();
            if ($links = $menu_link_manager->loadLinksByRoute($url->getRouteName(), $url->getRouteParameters())) {
              $link = _token_menu_link_best_match($node, $links);
              $replacements[$original] = token_menu_link_translated_title($link, $langcode);
            }
          }
          break;
      }

      // Chained token relationships.
      if ($menu_tokens = \Drupal::token()->findWithPrefix($tokens, 'menu-link')) {
        if ($node->getFieldDefinition('menu_link') && $menu_link = $node->menu_link->entity) {
          /** @var \Drupal\menu_link_content\MenuLinkContentInterface $menu_link */
          $replacements += \Drupal::token()->generate('menu-link', $menu_tokens, ['menu-link' => $menu_link], $options, $bubbleable_metadata);
        }
        else {
          $url = $node->toUrl();
          if ($links = $menu_link_manager->loadLinksByRoute($url->getRouteName(), $url->getRouteParameters())) {
            $link = _token_menu_link_best_match($node, $links);
            $replacements += \Drupal::token()->generate('menu-link', $menu_tokens, ['menu-link' => $link], $options, $bubbleable_metadata);
          }
        }
      }
    }
  }

  // Menu link tokens.
  if ($type == 'menu-link' && !empty($data['menu-link'])) {
    /** @var \Drupal\Core\Menu\MenuLinkInterface $link */
    $link = $data['menu-link'];

    if ($link instanceof MenuLinkContentInterface) {
      $link = $menu_link_manager->createInstance($link->getPluginId());
    }

    foreach ($tokens as $name => $original) {
      switch ($name) {
        case 'menu':
          if ($menu = Menu::load($link->getMenuName())) {
            $replacements[$original] = $menu->label();
          }
          break;

        case 'edit-url':
          $replacements[$original] = $link->getEditRoute()->setOptions($url_options)->toString();
          break;
      }
    }

    // Chained token relationships.
    if (($menu_tokens = \Drupal::token()->findWithPrefix($tokens, 'menu')) && $menu = Menu::load($link->getMenuName())) {
      $replacements += \Drupal::token()->generate('menu', $menu_tokens, ['menu' => $menu], $options, $bubbleable_metadata);
    }
  }

  // Menu tokens.
  if ($type == 'menu' && !empty($data['menu'])) {
    /** @var \Drupal\system\MenuInterface $menu */
    $menu = $data['menu'];

    foreach ($tokens as $name => $original) {
      switch ($name) {
        case 'name':
          $replacements[$original] = $menu->label();
          break;

        case 'machine-name':
          $replacements[$original] = $menu->id();
          break;

        case 'description':
          $replacements[$original] = $menu->getDescription();
          break;

        case 'menu-link-count':
          $replacements[$original] = $menu_link_manager->countMenuLinks($menu->id());
          break;

        case 'edit-url':
          $replacements[$original] = Url::fromRoute('entity.menu.edit_form', ['menu' => $menu->id()], $url_options)->toString();
          break;
      }
    }
  }

  return $replacements;
}

/**
 * Returns a best matched link for a given node.
 *
 * If the url exists in multiple menus, default to the one set on the node
 * itself.
 *
 * @param \Drupal\node\NodeInterface $node
 *   The node to look up the default menu settings from.
 * @param array $links
 *   An array of instances keyed by plugin ID.
 *
 * @return \Drupal\Core\Menu\MenuLinkInterface
 *   A Link instance.
 */
function _token_menu_link_best_match(NodeInterface $node, array $links) {
  // Get the menu ui defaults so we can determine what menu was
  // selected for this node. This ensures that if the node was added
  // to the menu via the node UI, we use that as a default. If it
  // was not added via the node UI then grab the first in the
  // retrieved array.
  $defaults = menu_ui_get_menu_link_defaults($node);
  if (isset($defaults['id']) && isset($links[$defaults['id']])) {
    $link = $links[$defaults['id']];
  }
  else {
    $link = reset($links);
  }
  return $link;
}

/**
 * Implements hook_token_info_alter() on behalf of field.module.
 *
 * We use hook_token_info_alter() rather than hook_token_info() as other
 * modules may already have defined some field tokens.
 */
function field_token_info_alter(&$info) {
  $type_info = \Drupal::service('plugin.manager.field.field_type')->getDefinitions();

  // Attach field tokens to their respecitve entity tokens.
  foreach (\Drupal::entityTypeManager()->getDefinitions() as $entity_type_id => $entity_type) {
    if (!$entity_type->isSubclassOf('\Drupal\Core\Entity\ContentEntityInterface')) {
      continue;
    }

    // Make sure a token type exists for this entity.
    $token_type = \Drupal::service('token.entity_mapper')->getTokenTypeForEntityType($entity_type_id);
    if (empty($token_type) || !isset($info['types'][$token_type])) {
      continue;
    }

    $fields = \Drupal::service('entity_field.manager')->getFieldStorageDefinitions($entity_type_id);
    foreach ($fields as $field_name => $field) {
      /** @var \Drupal\field\FieldStorageConfigInterface $field */

      // Ensure the token implements FieldStorageConfigInterface or is defined
      // in token module.
      $provider = '';
      if (isset($info['types'][$token_type]['module'])) {
        $provider = $info['types'][$token_type]['module'];
      }
      if (!($field instanceof FieldStorageConfigInterface) && $provider != 'token') {
        continue;
      }

      // If a token already exists for this field, then don't add it.
      if (isset($info['tokens'][$token_type][$field_name])) {
        continue;
      }

      if ($token_type == 'comment' && $field_name == 'comment_body') {
        // Core provides the comment field as [comment:body].
        continue;
      }

      // Do not define the token type if the field has no properties.
      if (!$field->getPropertyDefinitions()) {
        continue;
      }

      // Generate a description for the token.
      $labels = _token_field_label($entity_type_id, $field_name);
      $label = array_shift($labels);
      $params['@type'] = $type_info[$field->getType()]['label'];
      if (!empty($labels)) {
        $params['%labels'] = implode(', ', $labels);
        $description = t('@type field. Also known as %labels.', $params);
      }
      else {
        $description = t('@type field.', $params);
      }

      $cardinality = $field->getCardinality();
      $cardinality = ($cardinality == FieldStorageDefinitionInterface::CARDINALITY_UNLIMITED || $cardinality > 3) ? 3 : $cardinality;
      $field_token_name = $token_type . '-' . $field_name;
      $info['tokens'][$token_type][$field_name] = [
        'name' => Html::escape($label),
        'description' => $description,
        'module' => 'token',
        // For multivalue fields the field token is a list type.
        'type' => $cardinality > 1 ? "list<$field_token_name>" : $field_token_name,
      ];

      // Field token type.
      $info['types'][$field_token_name] = [
        'name' => Html::escape($label),
        'description' => t('@label tokens.', ['@label' => Html::escape($label)]),
        'needs-data' => $field_token_name,
        'nested' => TRUE,
      ];
      // Field list token type.
      if ($cardinality > 1) {
        $info['types']["list<$field_token_name>"] = [
          'name' => t('List of @type values', ['@type' => Html::escape($label)]),
          'description' => t('Tokens for lists of @type values.', ['@type' => Html::escape($label)]),
          'needs-data' => "list<$field_token_name>",
          'nested' => TRUE,
        ];
      }

      // Show a different token for each field delta.
      if ($cardinality > 1) {
        for ($delta = 0; $delta < $cardinality; $delta++) {
          $info['tokens']["list<$field_token_name>"][$delta] = [
            'name' => t('@type type with delta @delta', ['@type' => Html::escape($label), '@delta' => $delta]),
            'module' => 'token',
            'type' => $field_token_name,
          ];
        }
      }

      // Property tokens.
      foreach ($field->getPropertyDefinitions() as $property => $property_definition) {
        if (is_subclass_of($property_definition->getClass(), 'Drupal\Core\TypedData\PrimitiveInterface')) {
          $info['tokens'][$field_token_name][$property] = [
            'name' => $property_definition->getLabel(),
            'description' => $property_definition->getDescription(),
            'module' => 'token',
          ];
        }
        elseif (($property_definition instanceof DataReferenceDefinitionInterface) && ($property_definition->getTargetDefinition() instanceof EntityDataDefinitionInterface)) {
          $referenced_entity_type = $property_definition->getTargetDefinition()->getEntityTypeId();
          $referenced_token_type = \Drupal::service('token.entity_mapper')->getTokenTypeForEntityType($referenced_entity_type);
          $info['tokens'][$field_token_name][$property] = [
            'name' => $property_definition->getLabel(),
            'description' => $property_definition->getDescription(),
            'module' => 'token',
            'type' => $referenced_token_type,
          ];
        }
      }
      // Provide image_with_image_style tokens for image fields.
      if ($field->getType() == 'image') {
        $image_styles = image_style_options(FALSE);
        foreach ($image_styles as $style => $description) {
          $info['tokens'][$field_token_name][$style] = [
            'name' => $description,
            'description' => t('Represents the image in the given image style.'),
            'type' => 'image_with_image_style',
          ];
        }
      }
      // Provide format token for datetime fields.
      if ($field->getType() == 'datetime') {
        $info['tokens'][$field_token_name]['date'] = $info['tokens'][$field_token_name]['value'];
        $info['tokens'][$field_token_name]['date']['name'] .= ' ' . t('format');
        $info['tokens'][$field_token_name]['date']['type'] = 'date';
      }
      if ($field->getType() == 'daterange' || $field->getType() == 'date_recur') {
        $info['tokens'][$field_token_name]['start_date'] = $info['tokens'][$field_token_name]['value'];
        $info['tokens'][$field_token_name]['start_date']['name'] .= ' ' . t('format');
        $info['tokens'][$field_token_name]['start_date']['type'] = 'date';
        $info['tokens'][$field_token_name]['end_date'] = $info['tokens'][$field_token_name]['end_value'];
        $info['tokens'][$field_token_name]['end_date']['name'] .= ' ' . t('format');
        $info['tokens'][$field_token_name]['end_date']['type'] = 'date';
      }
    }
  }
}

/**
 * Returns the label of a certain field.
 *
 * Therefore it looks up in all bundles to find the most used instance.
 *
 * Based on views_entity_field_label().
 *
 * @todo Resync this method with views_entity_field_label().
 */
function _token_field_label($entity_type, $field_name) {
  $labels = [];
  // Count the amount of instances per label per field.
  foreach (array_keys(\Drupal::service('entity_type.bundle.info')->getBundleInfo($entity_type)) as $bundle) {
    $bundle_instances = \Drupal::service('entity_field.manager')->getFieldDefinitions($entity_type, $bundle);
    if (isset($bundle_instances[$field_name])) {
      $instance = $bundle_instances[$field_name];
      $label = (string) $instance->getLabel();
      $labels[$label] = isset($labels[$label]) ? ++$labels[$label] : 1;
    }
  }

  if (empty($labels)) {
    return [$field_name];
  }

  // Sort the field labels by it most used label and return the labels.
  arsort($labels);
  return array_keys($labels);
}

/**
 * Implements hook_tokens() on behalf of field.module.
 */
function field_tokens($type, $tokens, array $data = [], array $options = [], BubbleableMetadata $bubbleable_metadata) {
  $replacements = [];
  $langcode = isset($options['langcode']) ? $options['langcode'] : NULL;
  // Entity tokens.
  if ($type == 'entity' && !empty($data['entity_type']) && !empty($data['entity']) && !empty($data['token_type'])) {
    /* @var \Drupal\Core\Entity\ContentEntityInterface $entity */
    $entity = $data['entity'];
    if (!($entity instanceof ContentEntityInterface)) {
      return $replacements;
    }

    if (!isset($options['langcode'])) {
      // Set the active language in $options, so that it is passed along.
      $langcode = $options['langcode'] = $entity->language()->getId();
    }
    // Obtain the entity with the correct language.
    $entity = \Drupal::service('entity.repository')->getTranslationFromContext($entity, $langcode);

    $view_mode_name = $entity->getEntityTypeId() . '.' . $entity->bundle() . '.token';
    $view_display = \Drupal::entityTypeManager()->getStorage('entity_view_display')->load($view_mode_name);
    $token_view_display = (!empty($view_display) && $view_display->status());
    foreach ($tokens as $name => $original) {
      // For the [entity:field_name] token.
      if (strpos($name, ':') === FALSE) {
        $field_name = $name;
        $token_name = $name;
      }
      // For [entity:field_name:0], [entity:field_name:0:value] and
      // [entity:field_name:value] tokens.
      else {
        list($field_name, $delta) = explode(':', $name, 2);
        if (!is_numeric($delta)) {
          unset($delta);
        }
        $token_name = $field_name;
      }
      // Ensure the entity has the requested field and that the token for it is
      // defined by token.module.
      if (!$entity->hasField($field_name) || _token_module($data['token_type'], $token_name) != 'token') {
        continue;
      }

      $display_options = 'token';
      // Do not continue if the field is empty.
      if ($entity->get($field_name)->isEmpty()) {
        continue;
      }
      // Handle [entity:field_name] and [entity:field_name:0] tokens.
      if ($field_name === $name || isset($delta)) {
        if (!$token_view_display) {
          // We don't have the token view display and should fall back on
          // default formatters. If the field has specified a specific formatter
          // to be used by default with tokens, use that, otherwise use the
          // default formatter.
          /** @var \Drupal\Core\Field\FieldTypePluginManager $field_type_manager */
          $field_type_manager = \Drupal::service('plugin.manager.field.field_type');
          $field_type_definition = $field_type_manager->getDefinition($entity->getFieldDefinition($field_name)->getType());
          $display_options = [
            'type' => !empty($field_type_definition['default_token_formatter']) ? $field_type_definition['default_token_formatter'] : $field_type_definition['default_formatter'],
            'label' => 'hidden',
          ];
        }

        // Render only one delta.
        if (isset($delta)) {
          if ($field_delta = $entity->{$field_name}[$delta]) {
            $field_output = $field_delta->view($display_options);
          }
          // If no such delta exists, let's not replace the token.
          else {
            continue;
          }
        }
        // Render the whole field (with all deltas).
        else {
          $field_output = $entity->$field_name->view($display_options);
          // If we are displaying all field items we need this #pre_render
          // callback.
          $field_output['#pre_render'][] = 'token_pre_render_field_token';
        }
        $field_output['#token_options'] = $options;
        $replacements[$original] = \Drupal::service('renderer')->renderPlain($field_output);
      }
      // Handle [entity:field_name:value] and [entity:field_name:0:value]
      // tokens.
      elseif ($field_tokens = \Drupal::token()->findWithPrefix($tokens, $field_name)) {
        $property_token_data = [
          'field_property' => TRUE,
          $data['entity_type'] . '-' . $field_name => $entity->$field_name,
          'field_name' => $data['entity_type'] . '-' . $field_name,
        ];
        $replacements += \Drupal::token()->generate($field_name, $field_tokens, $property_token_data, $options, $bubbleable_metadata);
      }
    }

    // Remove the cloned object from memory.
    unset($entity);
  }
  elseif (!empty($data['field_property'])) {
    foreach ($tokens as $token => $original) {
      $filtered_tokens = $tokens;
      $delta = 0;
      $parts = explode(':', $token);
      if (is_numeric($parts[0])) {
        if (count($parts) > 1) {
          $delta = $parts[0];
          $property_name = $parts[1];
          // Pre-filter the tokens to select those with the correct delta.
          $filtered_tokens = \Drupal::token()->findWithPrefix($tokens, $delta);
          // Remove the delta to unify between having and not having one.
          array_shift($parts);
        }
        else {
          // Token is fieldname:delta, which is invalid.
          continue;
        }
      }
      else {
        $property_name = $parts[0];
      }

      if (isset($data[$data['field_name']][$delta])) {
        $field_item = $data[$data['field_name']][$delta];
      }
      else {
        // The field has no such delta, abort replacement.
        continue;
      }

      if (isset($field_item->$property_name) && ($field_item->$property_name instanceof FieldableEntityInterface)) {
        // Entity reference field.
        $entity = $field_item->$property_name;
        // Obtain the referenced entity with the correct language.
        $entity = \Drupal::service('entity.repository')->getTranslationFromContext($entity, $langcode);

        if (count($parts) > 1) {
          $field_tokens = \Drupal::token()->findWithPrefix($filtered_tokens, $property_name);
          $token_type = \Drupal::service('token.entity_mapper')->getTokenTypeForEntityType($entity->getEntityTypeId(), TRUE);
          $replacements += \Drupal::token()->generate($token_type, $field_tokens, [$token_type => $entity], $options, $bubbleable_metadata);
        }
        else {
          $replacements[$original] = $entity->label();
        }
      }
      elseif (($field_item->getFieldDefinition()->getType() == 'image') && ($style = ImageStyle::load($property_name))) {
        // Handle [node:field_name:image_style:property] tokens and multivalued
        // [node:field_name:delta:image_style:property] tokens. If the token is
        // of the form [node:field_name:image_style], provide the URL as a
        // replacement.
        $property_name = isset($parts[1]) ? $parts[1] : 'url';
        $entity = $field_item->entity;
        if (!empty($field_item->entity)) {
          $original_uri = $entity->getFileUri();

          // Only generate the image derivative if needed.
          if ($property_name === 'width' || $property_name === 'height') {
            $dimensions = [
              'width' => $field_item->width,
              'height' => $field_item->height,
            ];
            $style->transformDimensions($dimensions, $original_uri);
            $replacements[$original] = $dimensions[$property_name];
          }
          elseif ($property_name === 'uri') {
            $replacements[$original] = $style->buildUri($original_uri);
          }
          elseif ($property_name === 'url') {
            $replacements[$original] = $style->buildUrl($original_uri);
          }
          else {
            // Generate the image derivative, if it doesn't already exist.
            $derivative_uri = $style->buildUri($original_uri);
            $derivative_exists = TRUE;
            if (!file_exists($derivative_uri)) {
              $derivative_exists = $style->createDerivative($original_uri, $derivative_uri);
            }
            if ($derivative_exists) {
              $image = \Drupal::service('image.factory')->get($derivative_uri);
              // Provide the replacement.
              switch ($property_name) {
                case 'mimetype':
                  $replacements[$original] = $image->getMimeType();
                  break;

                case 'filesize':
                  $replacements[$original] = $image->getFileSize();
                  break;
              }
            }
          }
        }
      }
      elseif (in_array($field_item->getFieldDefinition()->getType(), ['datetime', 'daterange', 'date_recur']) && in_array($property_name, ['date', 'start_date', 'end_date']) && !empty($field_item->$property_name)) {
        $timestamp = $field_item->{$property_name}->getTimestamp();
        // If the token is an exact match for the property or the delta and the
        // property, use the timestamp as-is.
        if ($property_name == $token || "$delta:$property_name" == $token) {
          $replacements[$original] = $timestamp;
        }
        else {
          $date_tokens = \Drupal::token()->findWithPrefix($filtered_tokens, $property_name);
          $replacements += \Drupal::token()->generate('date', $date_tokens, ['date' => $timestamp], $options, $bubbleable_metadata);
        }
      }
      else {
        $replacements[$original] = $field_item->$property_name;
      }
    }
  }
  return $replacements;
}

/**
 * Pre-render callback for field output used with tokens.
 */
function token_pre_render_field_token($elements) {
  // Remove the field theme hook, attachments, and JavaScript states.
  unset($elements['#theme']);
  unset($elements['#states']);
  unset($elements['#attached']);

  // Prevent multi-value fields from appearing smooshed together by appending
  // a join suffix to all but the last value.
  $deltas = Element::getVisibleChildren($elements);
  $count = count($deltas);
  if ($count > 1) {
    $join = isset($elements['#token_options']['join']) ? $elements['#token_options']['join'] : ", ";
    foreach ($deltas as $index => $delta) {
      // Do not add a suffix to the last item.
      if ($index < ($count - 1)) {
        $elements[$delta] += ['#suffix' => $join];
      }
    }
  }
  return $elements;
}
