nexteuropa_newsroom.module

<?php

/**
 * @file
 * Code for the Nexteuropa Newsroom feature.
 */

include_once 'nexteuropa_newsroom.features.inc';

/**
 * @file
 * Code for the Nexteuropa Newsroom feature.
 */

module_load_include('inc', 'pathauto', 'pathauto');
module_load_include('inc', 'nexteuropa_newsroom', 'nexteuropa_newsroom.features');
module_load_include('inc', 'nexteuropa_newsroom', 'nexteuropa_newsroom.formatters');
module_load_include('inc', 'nexteuropa_newsroom', 'nexteuropa_newsroom.forms');
module_load_include('inc', 'nexteuropa_newsroom', 'nexteuropa_newsroom.blocks');
module_load_include('inc', 'nexteuropa_newsroom', 'nexteuropa_newsroom.theme');
module_load_include('inc', 'nexteuropa_newsroom', 'nexteuropa_newsroom.menu');

define('NEXTEUROPA_NEWSROOM_ALL', 'all');
define('NEXTEUROPA_NEWSROOM_PROPOSAL_SCRIPT', 'propose-item.cfm');
define('NEXTEUROPA_NEWSROOM_CLICKTHROUGH_FORCE', 'force');
define('NEXTEUROPA_NEWSROOM_CACHE_TABLE', 'cache_newsroom');
define('NEXTEUROPA_NEWSROOM_BASE_URL', 'https://ec.europa.eu/newsroom/');

define('NEXTEUROPA_NEWSROOM_CONTENT_TYPE', 'newsroom_item');
define('NEXTEUROPA_NEWSROOM_ISSUE_CONTENT_TYPE', 'newsroom_newsletter_issue');
define('NEXTEUROPA_NEWSROOM_NEWSLETTER_CONTENT_TYPE', 'newsroom_newsletter_issue');
define('NEXTEUROPA_NEWSROOM_TYPE_VOCABULARY', 'newsroom_item_type');
define('NEXTEUROPA_NEWSROOM_TOPIC_VOCABULARY', 'newsroom_topic');
define('NEXTEUROPA_NEWSROOM_SERVICE_VOCABULARY', 'newsroom_service');

define('NEXTEUROPA_NEWSROOM_TOPIC_IMPORTER', 'newsroom_topics_multilingual');
define('NEXTEUROPA_NEWSROOM_SERVICE_IMPORTER', 'newsroom_services_multilingual');
define('NEXTEUROPA_NEWSROOM_TYPE_IMPORTER', 'newsroom_types_multilingual');
define('NEXTEUROPA_NEWSROOM_ITEM_IMPORTER', 'newsroom_items_multilingual');
define('NEXTEUROPA_NEWSROOM_NEWSLETTER_IMPORTER', 'newsroom_newsletter_multilingual');

define('NEXTEUROPA_NEWSROOM_ITEM_SCRIPT', 'feed/full');
define('NEXTEUROPA_NEWSROOM_NEWSLETTER_SCRIPT', 'feed/newsletter-issues');
define('NEXTEUROPA_NEWSROOM_UNPUBLISH', 'feed/unpublished');
define('NEXTEUROPA_NEWSROOM_DELETE', 'feed/deleted');
define('NEXTEUROPA_NEWSROOM_TOPIC_SCRIPT', 'feed/services');
define('NEXTEUROPA_NEWSROOM_TYPE_SCRIPT', 'feed/item-types');
define('NEXTEUROPA_NEWSROOM_ITEM_SEGMENT', '&item_id=');
define('NEXTEUROPA_NEWSROOM_TOPIC_SEGMENT', '?topic_id=');
define('NEXTEUROPA_NEWSROOM_SERVICE_SEGMENT', '?service_id=');
define('NEXTEUROPA_NEWSROOM_TYPE_SEGMENT', '?item_type_id=');

define('NEXTEUROPA_NEWSROOM_PROPOSAL_ACCESS', 'send newsroom item proposal');
define('NEXTEUROPA_NEWSROOM_IMPORT_ACCESS', 'import newsroom feeds');
define('NEXTEUROPA_NEWSROOM_EDIT_ACCESS', 'edit remote newsroom item');
define('NEXTEUROPA_NEWSROOM_ADMIN_ACCESS', 'administer newsroom settings');

define('NEXTEUROPA_NEWSROOM_ITEM', 'item');
define('NEXTEUROPA_NEWSROOM_ISSUE', 'issue');
define('NEXTEUROPA_NEWSROOM_TOPIC', 'topic');
define('NEXTEUROPA_NEWSROOM_SERVICE', 'service');
define('NEXTEUROPA_NEWSROOM_TYPE', 'type');

/**
 * Implements hook_page_build().
 */
function nexteuropa_newsroom_page_build(&$page) {
  if (variable_get('nexteuropa_newsroom_use_css') && !strpos($_GET['q'], 'node/add') && empty(preg_match('#node/[0-9]+/edit#', $_GET['q'], $match))) {
    _nexteuropa_newsroom_attach_css();
  }
}

/**
 * Attaches the main newsroom css.
 */
function _nexteuropa_newsroom_attach_css() {
  drupal_add_css(drupal_get_path('module', 'nexteuropa_newsroom') . '/styles/nexteuropa_newsroom.css');
}

/**
 * Deletes newsroom entity.
 *
 * @param string $type
 *   Type: item, topic, service, type.
 * @param int $newsroom_id
 *   Original newsroom id.
 *
 * @return null
 *   Returns nothing.
 */
function _nexteuropa_newsroom_delete_item($type, $newsroom_id) {
  switch ($type) {
    case NEXTEUROPA_NEWSROOM_TYPE:
      _nexteuropa_newsroom_taxonomy_term_delete('field_newsroom_type_id', $newsroom_id, NEXTEUROPA_NEWSROOM_TYPE_VOCABULARY);
      break;

    case NEXTEUROPA_NEWSROOM_TOPIC:
      _nexteuropa_newsroom_taxonomy_term_delete('field_newsroom_topic_id', $newsroom_id, NEXTEUROPA_NEWSROOM_TOPIC_VOCABULARY);
      break;

    case NEXTEUROPA_NEWSROOM_SERVICE:
      _nexteuropa_newsroom_taxonomy_term_delete('field_newsroom_service_id', $newsroom_id, NEXTEUROPA_NEWSROOM_SERVICE_VOCABULARY);
      break;

    case NEXTEUROPA_NEWSROOM_ITEM:
      _nexteuropa_newsroom_item_delete($newsroom_id);
      break;

    default:
      NexteuropaNewsroomHelper::set404response();
  }

  return NULL;
}

/**
 * Imports newsroom entity.
 *
 * @param string $type
 *   Type: item, topic, service, type.
 * @param int $newsroom_id
 *   Original newsroom id.
 *
 * @return string
 *   Link to the item.
 */
function _nexteuropa_newsroom_import_item($type, $newsroom_id) {
  $path = NULL;
  switch ($type) {
    case NEXTEUROPA_NEWSROOM_TYPE:
      $path = NexteuropaNewsroomImporterHelper::getTaxonomyTermImportPath($type, $newsroom_id, NEXTEUROPA_NEWSROOM_TYPE_IMPORTER);
      break;

    case NEXTEUROPA_NEWSROOM_TOPIC:
      $path = NexteuropaNewsroomImporterHelper::getTaxonomyTermImportPath($type, $newsroom_id, NEXTEUROPA_NEWSROOM_TOPIC_IMPORTER);
      break;

    case NEXTEUROPA_NEWSROOM_SERVICE:
      $path = NexteuropaNewsroomImporterHelper::getTaxonomyTermImportPath($type, $newsroom_id, NEXTEUROPA_NEWSROOM_SERVICE_IMPORTER);
      break;

    case NEXTEUROPA_NEWSROOM_ITEM:
      $path = NexteuropaNewsroomImporterHelper::getNewsroomItemImportPath($newsroom_id);
      break;

    default:
      NexteuropaNewsroomHelper::set404response();
  }

  drupal_set_message(t('The item has been imported.'));
  return l(t('Open the item'), $path);
}

/**
 * Implements hook_help().
 */
function nexteuropa_newsroom_help($path, $arg) {
  $help = '';
  switch ($path) {
    // Help text for the newsroom feature.
    case 'admin/help#nexteuropa_newsroom':
      $help = '<p>' . t('The nexteuropa newsroom feature is meant to integrate the newsroom corporate service into a Drupal nexteuropa/Next Europa client. By enabling it you will have the chance to fetch contents from the newsroom service basing on the configuraiton of your "universe" into your instance of the newsroom. To configure the newsroom you will need to get an "Universe id" from the service provider, you will have this code once your universe has been fully configured as a service and it will be ready to serve you contents. In the newsroom <a href="@newsroom" title="newsroom configuraiton">admin settings page</a> you can then define many of the newsroom behaviours and you can start palying associating you existing content types with the newly imported news coming from the newsroom.', ['@newsroom' => url('admin/config/content/newsroom')]) . '</p>';

      break;
  }

  return $help;
}

/**
 * Implements hook_permission().
 */
function nexteuropa_newsroom_permission() {
  return [
    NEXTEUROPA_NEWSROOM_ADMIN_ACCESS => [
      'title' => t('Administer Newsroom settings'),
    ],
    NEXTEUROPA_NEWSROOM_IMPORT_ACCESS => [
      'title' => t('Import Newsroom feeds'),
    ],
    NEXTEUROPA_NEWSROOM_EDIT_ACCESS => [
      'title' => t('Edit newsroom item in Newsroom'),
    ],
    NEXTEUROPA_NEWSROOM_PROPOSAL_ACCESS => [
      'title' => t('Send newsroom item proposal'),
    ],
  ];
}

/**
 * Implements hook_image_default_styles().
 */
function nexteuropa_newsroom_image_default_styles() {
  // Exported image style: newsroom_style.
  $styles['newsroom_style'] = [
    'name' => 'newsroom_style',
    'label' => 'newsroom_style',
    'effects' => [
      1 => [
        'label' => 'Scale',
        'help' => 'Scaling will maintain the aspect-ratio of the original image. If only a single dimension is specified, the other dimension will be calculated.',
        'effect callback' => 'image_scale_effect',
        'dimensions callback' => 'image_scale_dimensions',
        'form callback' => 'image_scale_form',
        'summary theme' => 'image_scale_summary',
        'module' => 'image',
        'name' => 'image_scale',
        'data' => [
          'width' => 250,
          'height' => '',
          'upscale' => 1,
        ],
        'weight' => 1,
      ],
    ],
  ];
  return $styles;
}

/**
 * Implements hook_post_features_enable_feature().
 */
function nexteuropa_newsroom_post_features_enable_feature($component) {
  switch ($component) {
    case 'taxonomy':
      // Set translation mode for the vocabularies.
      $importer_id = [
        'topics' => NEXTEUROPA_NEWSROOM_TOPIC_VOCABULARY,
        'services' => NEXTEUROPA_NEWSROOM_SERVICE_VOCABULARY,
        'types' => NEXTEUROPA_NEWSROOM_TYPE_VOCABULARY,
      ];

      foreach ($importer_id as $importer) {
        if (!field_info_instance('taxonomy_term', 'name_field', $importer)) {
          title_field_replacement_toggle('taxonomy_term', $importer, 'name');
        }
      }
      break;
  }
}

/**
 * Get instance  view mode settings.
 *
 * @param array|undefined $field_instances
 *   Array or undefined.
 * @param array $modes
 *   Array.
 * @param string $bundle
 *   Array.
 *
 * @return field_instances
 *   Array.
 */
function _nexteuropa_newsroom_get_real_modes(array $field_instances, array $modes = ['teaser', 'full'], $bundle = NEXTEUROPA_NEWSROOM_CONTENT_TYPE) {
  // Get the current instances.
  $fields = field_info_instances('node', $bundle);

  foreach ($field_instances as $field_name => $instance) {
    // We work only on the content type, for now.
    if (strpos($field_name, 'node-newsroom_item') !== FALSE) {
      // Field names are different in the two arrays.
      $fields_name = str_replace('node-newsroom_item-', '', $field_name);
      // Teaser and full node by default.
      foreach ($modes as $view_mode) {
        // During install we have to check for reliable data.
        if (!empty($fields[$fields_name]['display'][$view_mode]['label'])) {
          // Override the field_instances in features with the current settings.
          $field_instances[$field_name]['display'][$view_mode] = $fields[$fields_name]['display'][$view_mode];
        }
      }
    }
  }

  return $field_instances;
}

/**
 * Get field groups.
 *
 * @param array $modes
 *   Array.
 * @param string $bundle
 *   Array.
 *
 * @return array
 *   Array.
 */
function _nexteuropa_newsroom_get_real_groups(array $modes = ['teaser', 'full'], $bundle = NEXTEUROPA_NEWSROOM_CONTENT_TYPE) {
  $groups = [];
  foreach ($modes as $mode) {
    $groups[$mode] = field_group_info_groups('node', $bundle, $mode, TRUE);
  }

  return $groups;
}

/**
 * Enables translations for specific fields.
 */
function _nexteuropa_newsroom_enable_translations() {
  // Enable entity translation support for terms.
  $enabled = variable_get('entity_translation_entity_types', []);
  if (!in_array('taxonomy_term', $enabled)) {
    $enabled['taxonomy_term'] = 'taxonomy_term';
  }
  if (!in_array('file', $enabled)) {
    $enabled['file'] = 'file';
  }
  variable_set('entity_translation_entity_types', $enabled);

  // Enable translations for various fields.
  $field_names = [
    'body',
    'field_file_image_alt_text',
    'field_file_image_title_text',
    'field_caption',
  ];

  foreach ($field_names as $field_name) {
    if ($field = field_read_field($field_name)) {
      // Make the field translatable.
      $field['translatable'] = 1;
      field_update_field($field);
    }
  }
}

/**
 * Implements hook_url_inbound_alter().
 */
function nexteuropa_newsroom_url_inbound_alter(&$path, $original_path, $path_language) {
  // Check if no url alias has not been found for incoming path.
  if ($path && $path == $original_path) {
    // Resolve alias if the content is not translated to current language. Get
    // alias of existing translation.
    foreach (array_keys(language_list()) as $language) {
      $source = drupal_lookup_path('source', $path, $language);
      if ($source && strpos($source, 'node/') === 0) {
        // Check if we are at the document page.
        $path = $source;
        break;
      }
    }
  }
}

/**
 * Implements hook_node_presave().
 */
function nexteuropa_newsroom_node_presave($node) {
  if ($node->type == NEXTEUROPA_NEWSROOM_CONTENT_TYPE && variable_get('nexteuropa_newsroom_patterns', FALSE)) {
    // Get all the types.
    $type_tid = NexteuropaNewsroomHelper::getFieldValue($node, 'field_newsroom_item_type', 'tid');
    if (!empty($type_tid) && $type = NexteuropaNewsroomVocabularyHelper::getNewsroomType($type_tid)) {
      $type_name = pathauto_cleanstring($type->name);
      if ($conf = variable_get('nexteuropa_newsroom_' . $type_name . '_root', FALSE)) {
        $node->path['pathauto'] = FALSE;
        $node->path['alias'] = $conf . '/' . pathauto_cleanstring($node->title);
        pathauto_alias_uniquify($node->path['alias'], !empty($node->nid) ? 'node/' . $node->nid : NULL, NexteuropaNewsroomHelper::getDefaultLanguage());
      }
    }
  }
}

/**
 * Implements hook_date_format_types().
 */
function nexteuropa_newsroom_date_format_types() {
  return [
    'newsroom_date_only' => t('NR : Date only'),
    'newsroom_long_type_without_time' => t('NR : Long date without time'),
  ];
}

/**
 * Implements hook_date_formats().
 */
function nexteuropa_newsroom_date_formats() {
  return [
    [
      'type' => 'newsroom_date_only',
      'format' => 'd/m/Y',
      'locales' => [],
    ],
    [
      'type' => 'newsroom_long_type_without_time',
      'format' => 'j F Y',
      'locales' => [],
    ],
  ];
}

/**
 * Implements hook_feeds_after_import().
 */
function nexteuropa_newsroom_feeds_after_import(FeedsSource $source) {
  // Restore the default URL in order to run importers manually or via cron.
  NexteuropaNewsroomImporterHelper::setDefaultImporterUrl($source->importer->fetcher->id);
}

/**
 * Implements hook_views_data_alter().
 */
function nexteuropa_newsroom_views_data_alter(&$data) {
  // Term name field.
  $data['taxonomy_term_data']['name'] = [
    'title' => t('Name'),
    'help' => t('The taxonomy term name.'),
    'field' => [
      'handler' => 'nexteuropa_newsroom_views_handler_field_taxonomy',
      'click sortable' => TRUE,
    ],
  ];
}

/**
 * Implements hook_node_view().
 */
function nexteuropa_newsroom_node_view($node, $view_mode, $langcode) {
  if ($node->type == NEXTEUROPA_NEWSROOM_CONTENT_TYPE &&
    in_array($view_mode, ['full', 'newsroom_events', 'newsroom_default'])) {

    $type = NexteuropaNewsroomVocabularyHelper::getNewsroomType(NexteuropaNewsroomHelper::getFieldValue($node, 'field_newsroom_item_type', 'tid'));
    $main_link_url = NexteuropaNewsroomHelper::getFieldTranslatedValue($node, 'field_newsroom_item_main_link', 'url');

    // Custom main link title per type.
    if ($type && $main_link_url) {
      // Case there is a custom read more text set, change it.
      if ($read_more_text = NexteuropaNewsroomHelper::getFieldTranslatedValue($type, 'field_newsroom_read_more_text', 'value', 'taxonomy_term')) {
        $node->content['field_newsroom_item_main_link'][0]['#element']['title'] = $read_more_text;
      }
    }

    // Custom responsible person label per type.
    $speaker = NexteuropaNewsroomHelper::getFieldTranslatedValue($node, 'field_newsroom_item_speaker');
    if ($type && $speaker) {
      // Case there is a custom read more text set, change it.
      if ($responsible_person = NexteuropaNewsroomHelper::getFieldTranslatedValue($type, 'field_newsroom_resp_person_label', 'value', 'taxonomy_term')) {
        $node->content['field_newsroom_item_speaker']['#title'] = $responsible_person;
      }
    }
  }
}

/**
 * Controls access to page based on IP (newsroom server) and role.
 *
 * @return bool
 *   Result of check whether the remote client can call import or other ops.
 */
function _nexteuropa_newsroom_item_import_access() {
  $allowed_ips = array_map('trim', explode(',', variable_get('nexteuropa_newsroom_allowed_ips')));
  return user_access(NEXTEUROPA_NEWSROOM_IMPORT_ACCESS) ? TRUE : in_array(ip_address(), $allowed_ips);
}

/**
 * Deletes taxonomy term by original newsroom ID.
 *
 * @param string $field_name
 *   Field name to store original newsroom ID.
 * @param int $original_newsroom_id
 *   Original newsroom id.
 * @param string $bundle
 *   Bundle.
 */
function _nexteuropa_newsroom_taxonomy_term_delete($field_name, $original_newsroom_id, $bundle) {
  if ($term = NexteuropaNewsroomHelper::getTaxonomyTermFromField($field_name, $original_newsroom_id, $bundle)) {
    taxonomy_term_delete($term->tid);
    drupal_set_message(t('Item has been deleted.'));
  }
  else {
    NexteuropaNewsroomHelper::set404response();
  }
}

/**
 * Deletes newsroom item by original newsroom ID.
 *
 * @param int $newsroom_id
 *   Original newsroom id.
 */
function _nexteuropa_newsroom_item_delete($newsroom_id) {
  if ($newsroom_id && $newsroom_item = NexteuropaNewsroomHelper::getNodeByFieldValue('field_newsroom_item_id', $newsroom_id)) {
    node_delete_multiple([$newsroom_item->nid]);
    $message = t('Newsroom Item nid: %1 deleted', ['%1' => implode(', ', $newsroom_item->nid)]);
    drupal_set_message($message);
  }
  else {
    NexteuropaNewsroomHelper::set404response();
  }
}

/**
 * Redirects to the Newsroom Item. With the Original Newsroom ID.
 *
 * @param int $newsroom_id
 *   Original newsroom ID.
 */
function _nexteuropa_newsroom_item_redirect($newsroom_id = 0) {
  _nexteuropa_newsroom_redirect(NEXTEUROPA_NEWSROOM_ITEM, $newsroom_id);
}

/**
 * Redirects to the Newsroom Item with the Original Newsroom ID.
 *
 * @param string $redirect_type
 *   Redirect type: item, type, topic.
 * @param int $newsroom_entity_id
 *   ID of entity from newsroom side.
 */
function _nexteuropa_newsroom_redirect($redirect_type = NEXTEUROPA_NEWSROOM_ITEM, $newsroom_entity_id = 0) {
  if (!$newsroom_entity_id) {
    NexteuropaNewsroomHelper::set404response();
  }

  $path = FALSE;
  switch ($redirect_type) {
    // Newsroom item based on original newsroom ID.
    case NEXTEUROPA_NEWSROOM_ITEM:
      if ($item = NexteuropaNewsroomHelper::getNodeByFieldValue('field_newsroom_item_id', $newsroom_entity_id)) {
        $path = 'node/' . $item->nid;
      }
      break;

    // Newsroom newsletter issue.
    case NEXTEUROPA_NEWSROOM_ISSUE:
      if ($item = NexteuropaNewsroomHelper::getNodeByFieldValue('field_newsroom_newsletter_id', $newsroom_entity_id)) {
        $path = 'node/' . $item->nid;
      }
      break;

    // Newsroom Item Type based on original import name.
    case NEXTEUROPA_NEWSROOM_TYPE:
      $path = _newsroom_nexteuropa_get_term_redirect_path('field_newsroom_type_id', $newsroom_entity_id, NEXTEUROPA_NEWSROOM_TYPE_VOCABULARY);
      break;

    // Newsroom Topic based on original newsroom topic ID.
    case NEXTEUROPA_NEWSROOM_TOPIC:
      $path = _newsroom_nexteuropa_get_term_redirect_path('field_newsroom_topic_id', $newsroom_entity_id, NEXTEUROPA_NEWSROOM_TOPIC_VOCABULARY);
      break;

    // Newsroom service.
    case NEXTEUROPA_NEWSROOM_SERVICE:
      $path = _newsroom_nexteuropa_get_term_redirect_path('field_newsroom_service_id', $newsroom_entity_id, NEXTEUROPA_NEWSROOM_SERVICE_VOCABULARY);
      break;
  }

  if ($path) {
    drupal_goto($path, [], 301);
  }
  else {
    NexteuropaNewsroomHelper::set404response();
  }
}

/**
 * Get redirect URL for taxonomy term.
 *
 * @param string $field_name
 *   Field name with original newsroom id.
 * @param int $newsroom_entity_id
 *   Original newsroom id.
 * @param string $bundle
 *   Bundle.
 *
 * @return string
 *   Taxonomy term url.
 */
function _newsroom_nexteuropa_get_term_redirect_path($field_name, $newsroom_entity_id, $bundle) {
  $path = FALSE;
  if ($taxonomy_term = NexteuropaNewsroomHelper::getTaxonomyTermFromField($field_name, $newsroom_entity_id, $bundle)) {
    $path = 'taxonomy/term/' . $taxonomy_term->tid;
  }
  return $path;
}

/**
 * Implements hook_views_pre_view().
 */
function nexteuropa_newsroom_views_pre_view(&$view, &$display_id, array &$args) {
  if ($view->name == 'newsletter_subscription') {
    // The proper context filter cannot be found for taxonomy term pages
    // so we set it manually.
    $current_path = menu_get_item();

    // Try to get proper taxonomy context filter.
    if ($current_path['path'] === 'taxonomy/term/%') {
      $taxonomy_term = NULL;
      $current_page_path = current_path();

      // Never sure what menu_callback will get you with.
      // A view overridding a taxo page.
      $url_tokens = explode('/', $current_page_path);
      if (!empty($url_tokens[2]) && is_numeric($url_tokens[2])) {
        $taxonomy_term = taxonomy_term_load($url_tokens[2]);
      }

      if ($associated_topic_id = NexteuropaNewsroomHelper::getFieldValue($taxonomy_term, 'field_newsroom_associated_topic', 'tid')) {
        $has_newsroom_topic_argument = FALSE;
        // Check the current display.
        if (!empty($view->display[$view->current_display]->handler->options['arguments'])) {
          foreach ($view->display[$view->current_display]->handler->options['arguments'] as $argument) {
            // Check if this field taxonomy ref to newsroom_topic vocabulary.
            if ($argument['default_argument_type'] == 'taxonomy_tid' && !empty($argument['default_argument_options']['vocabularies']['newsroom_topic'])) {
              $has_newsroom_topic_argument = TRUE;
              break;
            }
          }
        }

        // Check the default display, if we don't have ovverrides.
        if (!empty($view->display['default']->handler->options['arguments'])) {
          foreach ($view->display['default']->handler->options['arguments'] as $argument) {
            // Check if this field taxonomy ref to newsroom_topic vocabulary.
            if ($argument['default_argument_type'] == 'taxonomy_tid' &&
              !empty($argument['default_argument_options']['vocabularies']['newsroom_topic'])) {
              $has_newsroom_topic_argument = TRUE;
              break;
            }
          }
        }

        // Set argument from the taxonomy associated newsroom topic.
        if ($has_newsroom_topic_argument) {
          $args = [$associated_topic_id];
        }
      }
    }
  }
}

/**
 * Implements hook_entity_presave().
 */
function nexteuropa_newsroom_entity_presave($entity, $type) {
  // Set custom updated date from newsroom.
  if (!empty($entity->_feed_changed) && isset($entity->changed)) {
    $entity->changed = $entity->_feed_changed;
  }
}

/**
 * Implements hook_feeds_after_save().
 */
function nexteuropa_newsroom_feeds_after_save(FeedsSource $source, $entity, $item, $entity_id) {
  if ($source->importer()->fetcher->id == 'newsroom_unpublished_items' || $source->importer()->fetcher->id == 'newsroom_deleted_items') {
    NexteuropaNewsroomHelper::deleteEntityTranslations($entity, $entity_id);
    entity_delete('node', $entity_id);
  }
  elseif ($source->importer()->fetcher->id == 'newsroom_items_multilingual') {
    // TODO : find a better way to remove translation.
    $languages = language_list();

    // Try to remove disabled translations, check the title for translation.
    foreach ($languages as $language) {
      // Check only active and skip the default language.
      if ($language->enabled && $language->language != NexteuropaNewsroomHelper::getDefaultLanguage()) {
        $config = $source->importer()->processor->getConfig();
        if (!empty($config['mappings'])) {
          $xpath_expression = NULL;
          foreach ($config['mappings'] as $mapping) {
            if ($mapping['target'] == 'title_field:et:' . $language->language) {
              $xpath_expression = $mapping['source'];
              break;
            }
          }

          // If title is empty it means there is no translation.
          if (!empty($xpath_expression) || empty($item[$xpath_expression])) {
            NexteuropaNewsroomHelper::deleteEntityTranslations($entity, $entity_id, $language);
          }
        }
      }
    }

    $image_fields = [
      'field_newsroom_illustrative_img',
      'field_newsroom_private_img',
    ];

    foreach ($image_fields as $image_field) {
      _nexteuropa_newsroom_set_image_meta_info($image_field, $entity, $source, $item, $languages, NexteuropaNewsroomHelper::getDefaultLanguage());
      _nexteuropa_newsroom_clean_files($entity, $image_field);
    }
  }
}

/**
 * Clean up files.
 *
 * @param object $node
 *   Current node.
 * @param string $field
 *   Field name.
 */
function _nexteuropa_newsroom_clean_files($node, $field) {
  $count = 0;

  if (!empty($node->{$field}[LANGUAGE_NONE][0]['fid'])) {
    $file = file_load($node->{$field}[LANGUAGE_NONE][0]['fid']);

    if (!empty($file)) {
      $query = db_select('file_managed', 'f');
      $query->leftJoin('file_usage', 'fu', 'f.fid = fu.fid');
      $query->leftJoin('node', 'n', 'fu.id = n.nid');
      $query->fields('f', ['fid', 'status', 'filesize', 'filemime', 'uri']);
      $query->fields('fu', ['id']);
      $query->condition('f.filesize', $file->filesize);
      $query->condition('f.filemime', $file->filemime);
      $query->condition('f.filename', $file->filename);
      $query->condition('f.uri', '%newsroom%', 'LIKE');
      $query->condition('f.fid', $file->fid, '<>');
      $db_or = db_or();
      $db_or->condition('n.type', NEXTEUROPA_NEWSROOM_CONTENT_TYPE);
      $db_or->isNull('n.type');
      $query->condition($db_or);
      $result = $query->execute()->fetchAll();

      foreach ($result as $fid) {
        $file_to_delete = file_load($fid->fid);
        if (!empty($file_to_delete)) {
          file_delete($file_to_delete, TRUE);
          $count++;
        }
      }
    }
  }

  return $count;
}

/**
 * Save image meta info.
 *
 * @param string $image_field
 *   Image field name.
 * @param object $entity
 *   Entity object.
 * @param object $source
 *   Feed source object.
 * @param array $item
 *   Feed result array.
 * @param array $languages
 *   Array of the available languages.
 * @param string $default_language
 *   Default language code.
 */
function _nexteuropa_newsroom_set_image_meta_info($image_field, $entity, $source, array $item, array $languages, $default_language) {
  if ($fid = NexteuropaNewsroomHelper::getFieldValue($entity, $image_field, 'fid')) {
    if ($file = file_load($fid)) {
      $fields = [
        'field_file_image_title_text' => 'title',
        'field_newsroom_copyrights' => 'copyright',
        'field_caption' => 'caption',
        'field_file_image_alt_text' => 'alt',
      ];

      $config = $source->importer()->processor->getConfig();
      if (!empty($config['mappings'])) {
        // Save default language at first.
        foreach ($config['mappings'] as $mapping) {
          foreach ($fields as $field => $field_name) {
            if ($mapping['target'] == $image_field . ':' . $field_name . ':et:' . $default_language && !empty($mapping['source']) && !empty($item[$mapping['source']])) {
              $file->$field = [$default_language => [0 => ['value' => $item[$mapping['source']]]]];
            }
          }
        }

        $handler = entity_translation_get_handler('file', $file);

        // Handle the rest of available translations.
        foreach ($config['mappings'] as $mapping) {
          foreach ($fields as $field => $field_name) {
            foreach ($languages as $language) {

              if ($language->language == $default_language) {
                continue;
              }

              if ($mapping['target'] == $image_field . ':' . $field_name . ':et:' . $language->language && !empty($mapping['source']) && !empty($item[$mapping['source']])) {
                $translation = [
                  'translate' => 0,
                  'status' => 1,
                  'language' => $language->language,
                  'source' => $default_language,
                ];
                $values = [
                  "$field" => [
                    "$language->language" => [
                      '0' => [
                        'value' => $item[$mapping['source']],
                      ],
                    ],
                  ],
                ];
                $handler->setTranslation($translation, $values);
              }
            }
          }
        }
      }

      file_save($file);
      if (module_exists('entitycache')) {
        cache_clear_all($fid, 'cache_entity_file');
      }
    }
  }
}

/**
 * Implements hook_feeds_set_target().
 */
function nexteuropa_newsroom_feeds_set_target(FeedsSource $source, $entity, $target, $feed_element) {
  $entity->_feed_changed = feeds_to_unixtime($feed_element, REQUEST_TIME);
}

/**
 * Implements hook_feeds_processor_targets_alter().
 */
function nexteuropa_newsroom_feeds_processor_targets_alter(&$targets, $entity_type, $bundle_name) {
  // Set custom target callback to set updated date later.
  $targets['_feed_changed'] = [
    'name' => t('Changed date'),
    'description' => t('The UNIX time when a !entity_type has been changed.', ['!entity_type' => $entity_type]),
    'callback' => 'newsroom_feeds_set_target',
  ];

  // Add custom targets for file fields: copyrights, caption, title, alt.
  $field_names = [
    'field_newsroom_illustrative_img:title:et:' => 'field_file_image_title_text',
    'field_newsroom_illustrative_img:copyright:et:' => 'field_newsroom_copyrights',
    'field_newsroom_illustrative_img:caption:et:' => 'field_caption',
    'field_newsroom_illustrative_img:alt:et:' => 'field_file_image_alt_text',
    'field_newsroom_private_img:title:et:' => 'field_file_image_title_text',
    'field_newsroom_private_img:copyright:et:' => 'field_newsroom_copyrights',
    'field_newsroom_private_img:caption:et:' => 'field_caption',
    'field_newsroom_private_img:alt:et:' => 'field_file_image_alt_text',
  ];

  $fields = [];
  $languages = language_list();
  foreach ($languages as $language) {
    // Check only active and skip the default language.
    if ($language->enabled) {
      foreach (array_keys($field_names) as $field_name) {
        $fields[] = $field_name . $language->language;
      }
    }
  }

  foreach (field_info_instances('file', 'image') as $name => $instance) {
    if (in_array($name, $field_names)) {
      foreach ($fields as $field) {
        $targets[$field] = [
          'name' => t('Image:@name', ['@name' => $field]),
          'callback' => NULL,
          'description' => t('The @label field of the image.', ['@label' => $field]),
          'real_target' => $field,
        ];
      }
    }
  }

  if ($entity_type == 'node') {
    if ($bundle_name == NEXTEUROPA_NEWSROOM_CONTENT_TYPE && !empty($targets['field_newsroom_item_id'])) {
      $targets['field_newsroom_item_id']['unique_callbacks'] = ['_nexteuropa_newsroom_use_as_guid'];
      $targets['field_newsroom_item_id']['optional_unique'] = TRUE;
    }
    elseif ($bundle_name == NEXTEUROPA_NEWSROOM_ISSUE_CONTENT_TYPE && !empty($targets['field_newsroom_newsletter_id'])) {
      $targets['field_newsroom_newsletter_id']['unique_callbacks'] = ['_nexteuropa_newsroom_use_as_guid'];
      $targets['field_newsroom_newsletter_id']['optional_unique'] = TRUE;
    }
  }
}

/**
 * Implements hook_field_default_field_instances_alter().
 */
function nexteuropa_newsroom_field_default_field_instances_alter(&$fields) {
  // Add the teaser and full view mode to the display key, if they exists.
  $fields = _nexteuropa_newsroom_get_real_modes($fields);
}

/**
 * Callback for the unique_callbacks specified in hook_feed_processor_targets().
 *
 * @param FeedsSource $source
 *   The Feed source.
 * @param string $entity_type
 *   Entity type for the entity to be processed.
 * @param string $bundle
 *   Bundle name for the entity to be processed.
 * @param string $target
 *   A string identifying the unique target on the entity.
 * @param array $values
 *   The unique values to be checked.
 *
 * @return int|null
 *   The existing entity id, or NULL if no existing entity is found.
 *
 * @see hook_feeds_processor_targets()
 * @see FeedsProcessor::existingEntityId()
 */
function _nexteuropa_newsroom_use_as_guid(FeedsSource $source, $entity_type, $bundle, $target, array $values) {

  // Example for if the target is a field.
  $query = new EntityFieldQuery();
  $result = $query
    ->entityCondition('entity_type', $entity_type)
    ->entityCondition('bundle', $bundle)
    ->fieldCondition($target, 'value', $values)
    ->addTag('DANGEROUS_ACCESS_CHECK_OPT_OUT')
    ->execute();

  if (!empty($result[$entity_type])) {
    return key($result[$entity_type]);
  }

  return NULL;
}

/**
 * Implements hook_views_handlers().
 */
function nexteuropa_newsroom_views_handlers() {
  return [
    'handlers' => [
      'newsroom_views_handler_field_taxonomy' => [
        'parent' => 'views_handler_field_taxonomy',
        'path' => drupal_get_path('module', 'nexteuropa_newsroom') . '/views',
      ],
    ],
  ];
}

/**
 * Implements hook_feeds_after_parse().
 */
function nexteuropa_newsroom_feeds_after_parse(FeedsSource $source, FeedsParserResult $result) {
  if ($source->id == NEXTEUROPA_NEWSROOM_ITEM_IMPORTER) {
    // We set end date to start date if it is empty or doesn't exist.
    $config = $source->importer()->processor->getConfig();

    $start_date_exp = '';
    $end_date_exp = '';

    // Check Xpath expressions for Start date and End date.
    if (!empty($config['mappings'])) {
      foreach ($config['mappings'] as $mapping) {
        if ($mapping['target'] == 'field_newsroom_item_date:start') {
          $start_date_exp = $mapping['source'];
        }
        if ($mapping['target'] == 'field_newsroom_item_date:end') {
          $end_date_exp = $mapping['source'];
        }
        if (!empty($start_date_exp) && !empty($end_date_exp)) {
          break;
        }
      }
    }

    // If end date is empty we change it to start date.
    foreach ($result->items as &$item) {
      if (empty($item[$end_date_exp]) && !empty($item[$start_date_exp])) {
        $item[$end_date_exp] = $item[$start_date_exp];
      }
    }
  }
}

/**
 * Implements hook_flush_caches().
 */
function nexteuropa_newsroom_flush_caches() {
  return [NEXTEUROPA_NEWSROOM_CACHE_TABLE];
}

/**
 * Implements hook_context_page_reaction().
 */
function nexteuropa_newsroom_context_page_reaction() {
  if ($plugin = context_get_plugin('reaction', 'newsroom_agenda_block')) {
    $plugin->execute();
  }
}

/**
 * Implements hook_context_plugins().
 */
function nexteuropa_newsroom_context_plugins() {
  $plugins = [];
  // Add a plugin for tabs
  // it allows us set agenda block with certain newsroom types.
  $plugins['newsroom_agenda_block_reaction'] = [
    'handler' => [
      'path' => drupal_get_path('module', 'nexteuropa_newsroom') . '/plugins',
      'file' => 'nexteuropa_newsroom_agenda_reaction.inc',
      'class' => 'NexteuropaNewsroomAgendaReaction',
      'parent' => 'context_reaction',
    ],
  ];
  return $plugins;
}

/**
 * Implements hook_context_registry().
 */
function nexteuropa_newsroom_context_registry() {
  // Add a plugin for agenda block to the registry,
  // it allows us set agenda block with certain newsroom types.
  return [
    'reactions' => [
      'newsroom_agenda_block' => [
        'title' => t('Newsroom Agenda Block'),
        'plugin' => 'newsroom_agenda_block_reaction',
      ],
    ],
  ];
}

/**
 * Implements hook_preprocess_node().
 */
function nexteuropa_newsroom_preprocess_node(&$variables) {
  if ($variables['type'] == NEXTEUROPA_NEWSROOM_CONTENT_TYPE) {
    $node = $variables['node'];
    $redirect = variable_get('nexteuropa_newsroom_redirect_short_items');
    if (!empty($redirect) && in_array($variables['view_mode'],
      ['full', 'newsroom_events', 'newsroom_default'])) {
      $type = NexteuropaNewsroomVocabularyHelper::getNewsroomType(NexteuropaNewsroomHelper::getFieldValue($node, 'field_newsroom_item_type', 'tid'));
      $main_link_url = NexteuropaNewsroomHelper::getFieldTranslatedValue($node, 'field_newsroom_item_main_link', 'url');
      $teaser_only = NexteuropaNewsroomHelper::getFieldTranslatedValue($node, 'field_newsroom_teaser_only', 'value');

      if (!empty($teaser_only) && !empty($main_link_url)) {
        drupal_goto($main_link_url, [], 301);
      }

      // Redirect item if redirection is forced for this type.
      // Except for editors who can import items.
      if (!user_access(NEXTEUROPA_NEWSROOM_IMPORT_ACCESS)) {

        // Only if we have a main link and if type is click through then
        // redirect item to main link URL.
        if ($type && $main_link_url) {
          $click_through = NexteuropaNewsroomHelper::getFieldValue($type, 'field_newsroom_direct_link', 'taxonomy_term');
          if ($click_through == NEXTEUROPA_NEWSROOM_CLICKTHROUGH_FORCE) {
            drupal_goto($main_link_url, [], 301);
          }
        }
      }
    }

    // Fix contact link.
    $nr_contact_field = field_get_items('node', $node, 'field_newsroom_item_contact_text');
    $nr_contact_email_field = field_get_items('node', $node, 'field_newsroom_item_contact_mail');
    hide($variables['content']['field_newsroom_item_contact_text']);
    if ($nr_contact_email_field) {
      $nr_contact_text = !empty($nr_contact_field[0]['value']) ? $nr_contact_field[0]['value'] : $nr_contact_email_field[0]['value'];
      $variables['content']['field_newsroom_item_contact_mail'][0]['#markup'] = l($nr_contact_text, 'mailto:' . $nr_contact_email_field[0]['value'], [
        'absolute' => TRUE,
        'html' => TRUE,
      ]);
    }

    // Fix custom date visibility and label by type.
    $nr_type_field = field_get_items('node', $node, 'field_newsroom_item_type');
    $display_date = FALSE;

    if (!empty($nr_type_field[0]['taxonomy_term'])) {
      $display_date_field = field_get_items('taxonomy_term', $nr_type_field[0]['taxonomy_term'], 'field_newsroom_display_date');
      if ($display_date_field) {
        $display_date = (bool) $display_date_field[0]['value'];
      }
      if ($display_date) {
        $date_label_field = field_get_items('taxonomy_term', $nr_type_field[0]['taxonomy_term'], 'field_newsroom_date_label');
        if ($date_label_field) {
          $date_label = $date_label_field[0]['value'];
          $variables['content']['field_newsroom_item_date']['#title'] = $date_label;
        }
      }
    }
  }
}

/**
 * Implements hook_ctools_plugin_directory().
 */
function nexteuropa_newsroom_ctools_plugin_directory($owner, $plugin_type) {
  if ($owner == 'feeds_tamper' && $plugin_type == 'plugins') {
    return 'tamper_plugins';
  }
}

/**
 * Implements theme_entity_view_mode_alter().
 */
function nexteuropa_newsroom_entity_view_mode_alter(&$view_mode, $context) {
  if (!empty($context['entity']->type) && $context['entity']->type == 'newsroom_item') {
    if ($view_mode == 'newsroom_teaser') {
      return;
    }
    if (variable_get('nexteuropa_newsroom_use_default_view_mode')) {
      $view_mode = 'newsroom_default';
    }
    if ($terms = field_get_items('node', $context['entity'], 'field_newsroom_item_type')) {
      if ($term = taxonomy_term_load($terms[0]['tid'])) {
        if (!empty($term->field_newsroom_type_id[LANGUAGE_NONE][0]['value'])) {
          switch ($term->field_newsroom_type_id[LANGUAGE_NONE][0]['value']) {
            case variable_get('nexteuropa_newsroom_events_type_id'):
              $view_mode = 'newsroom_events';
              break;

            case variable_get('nexteuropa_newsroom_fundings_type_id'):
              $view_mode = 'newsroom_fundings';
              break;

            case variable_get('nexteuropa_newsroom_consultations_type_id'):
              $view_mode = 'newsroom_consultations';
              break;
          }
        }
      }
    }
  }
}

/**
 * Implements hook_post_features_enable_feature().
 */
function nexteuropa_newsroom_post_features_revert($component) {
  if ($component == 'ds_field_settings') {
    cache_clear_all('ds_field_settings', 'cache');
  }
}

/**
 * Implements hook_bootstrap_colorize_text_alter().
 */
function nexteuropa_newsroom_bootstrap_colorize_text_alter(&$texts) {
  $texts['contains'][t('Subscribe')] = 'primary';
}

/**
 * Implements hook_ds_fields_info().
 */
function nexteuropa_newsroom_ds_fields_info($entity_type) {
  $fields = [];
  $fields['newsroom_content_type_label'] = [
    'title' => t('Newsroom content type label'),
    'field_type' => DS_FIELD_TYPE_FUNCTION,
    'function' => '_nexteuropa_newsroom_ds_content_info',
    'properties' => [
      'formatters' => [],
    ],
  ];
  return ['node' => $fields];
}

/**
 * Gets content label.
 */
function _nexteuropa_newsroom_ds_content_info() {
  $node = menu_get_object();
  if (empty($node)) {
    $field = func_get_args();
    if (!empty($field[0]['entity'])) {
      $node = $field[0]['entity'];
    }
  }

  $label = node_type_get_name($node);
  if (!empty($node->field_newsroom_item_type[LANGUAGE_NONE][0]['tid'])) {
    if ($type = NexteuropaNewsroomVocabularyHelper::getNewsroomType($node->field_newsroom_item_type[LANGUAGE_NONE][0]['tid'])) {
      $label = $type->name;
      if (!empty($type->field_newsroom_content_label[LANGUAGE_NONE][0]['value'])) {
        $label = $type->field_newsroom_content_label[LANGUAGE_NONE][0]['value'];
      }
    }
  }
  return $label;
}

/**
 * Clean up files for the current node.
 *
 * @param int $nid
 *   Node id.
 * @param array $context
 *   Batch context.
 */
function _nexteuropa_newsroom_file_cleanup_batch_process($nid, &$context) {
  $image_fields = [
    'field_newsroom_illustrative_img',
    'field_newsroom_private_img',
  ];

  if (!isset($context['results']['cnt'])) {
    $context['results']['cnt'] = 0;
  }

  $cache_key = 'get_agenda:clean_files';
  $items = [];
  if ($cache = cache_get($cache_key, NEXTEUROPA_NEWSROOM_CACHE_TABLE)) {
    $items = $cache->data;
  }

  $node = node_load($nid);
  if (!empty($node)) {
    foreach ($image_fields as $image_field) {
      $context['results']['cnt'] += _nexteuropa_newsroom_clean_files($node, $image_field);
    }

    $items[] = $nid;
    cache_set($cache_key, $items, NEXTEUROPA_NEWSROOM_CACHE_TABLE);

    $context['message'] = t('Deleting files for nid "!nid"', ['!nid' => $nid]);
  }
  else {
    $context['message'] = t('Newsroom item is not found');
  }
}

/**
 * Remove file.
 *
 * @param int $fid
 *   File id.
 * @param array $context
 *   Batch context.
 */
function _nexteuropa_newsroom_remove_file_batch_process($fid, &$context) {
  if (!isset($context['results']['cnt'])) {
    $context['results']['cnt'] = 0;
  }

  $file_to_delete = file_load($fid);
  if (!empty($file_to_delete)) {
    $context['message'] = t('Deleting file "!fid"', ['!fid' => $fid]);
    file_delete($file_to_delete, TRUE);
    $context['results']['cnt'] += 1;
  }
  else {
    $context['message'] = t('File is not found');
  }
}

/**
 * Displays messages after the batch has finished.
 *
 * @param bool $success
 *   Did the batch finished with/without errors.
 * @param array $results
 *   Results of batch iterations.
 * @param array $operations
 *   Unproccessed operations, if any.
 */
function _nexteuropa_newsroom_file_cleanup_batch_finish($success, array $results, array $operations) {
  if ($success) {
    drupal_set_message(t('@count files deleted.', [
      '@count' => $results['cnt'],
    ]));
  }
}