<?php

/**

 * @file

 * Builds placeholder replacement tokens for node-related data.

 */

/**

 * Implements hook_token_info().

 */

function node_token_info() {

  $type = array(

    'name' => t('Nodes'),

    'description' => t('Tokens related to individual content items, or "nodes".'),

    'needs-data' => 'node',

  );

  // Core tokens for nodes.

  $node['nid'] = array(

    'name' => t("Content ID"),

    'description' => t('The unique ID of the content item, or "node".'),

  );

  $node['vid'] = array(

    'name' => t("Revision ID"),

    'description' => t("The unique ID of the node's latest revision."),

  );

  $node['tnid'] = array(

    'name' => t("Translation set ID"),

    'description' => t("The unique ID of the original-language version of this node, if one exists."),

  );

  $node['type'] = array(

    'name' => t("Content type"),

    'description' => t("The type of the node."),

  );

  $node['type-name'] = array(

    'name' => t("Content type name"),

    'description' => t("The human-readable name of the node type."),

  );

  $node['title'] = array(

    'name' => t("Title"),

    'description' => t("The title of the node."),

  );

  $node['body'] = array(

    'name' => t("Body"),

    'description' => t("The main body text of the node."),

  );

  $node['summary'] = array(

    'name' => t("Summary"),

    'description' => t("The summary of the node's main body text."),

  );

  $node['language'] = array(

    'name' => t("Language"),

    'description' => t("The language the node is written in."),

  );

  $node['url'] = array(

    'name' => t("URL"),

    'description' => t("The URL of the node."),

  );

  $node['edit-url'] = array(

    'name' => t("Edit URL"),

    'description' => t("The URL of the node's edit page."),

  );

  // Chained tokens for nodes.

  $node['created'] = array(

    'name' => t("Date created"),

    'description' => t("The date the node was posted."),

    'type' => 'date',

  );

  $node['changed'] = array(

    'name' => t("Date changed"),

    'description' => t("The date the node was most recently updated."),

    'type' => 'date',

  );

  $node['author'] = array(

    'name' => t("Author"),

    'description' => t("The author of the node."),

    'type' => 'user',

  );

  return array(

    'types' => array('node' => $type),

    'tokens' => array('node' => $node),

  );

}

/**

 * Implements hook_tokens().

 */

function node_tokens($type, $tokens, array $data = array(), array $options = array()) {

  $url_options = array('absolute' => TRUE);

  if (isset($options['language'])) {

    $url_options['language'] = $options['language'];

    $language_code = $options['language']->language;

  }

  else {

    $language_code = NULL;

  }

  $sanitize = !empty($options['sanitize']);

  $replacements = array();

  if ($type == 'node' && !empty($data['node'])) {

    $node = $data['node'];

    foreach ($tokens as $name => $original) {

      switch ($name) {

        // Simple key values on the node.

        case 'nid':

          $replacements[$original] = $node->nid;

          break;

        case 'vid':

          $replacements[$original] = $node->vid;

          break;

        case 'tnid':

          $replacements[$original] = $node->tnid;

          break;

        case 'type':

          $replacements[$original] = $sanitize ? check_plain($node->type) : $node->type;

          break;

        case 'type-name':

          $type_name = node_type_get_name($node);

          $replacements[$original] = $sanitize ? check_plain($type_name) : $type_name;

          break;

        case 'title':

          $replacements[$original] = $sanitize ? check_plain($node->title) : $node->title;

          break;

        case 'body':

        case 'summary':

          if ($items = field_get_items('node', $node, 'body', $language_code)) {

            $instance = field_info_instance('node', 'body', $node->type);

            $field_langcode = field_language('node', $node, 'body', $language_code);

            // If the summary was requested and is not empty, use it.

            if ($name == 'summary' && !empty($items[0]['summary'])) {

              $output = $sanitize ? _text_sanitize($instance, $field_langcode, $items[0], 'summary') : $items[0]['summary'];

            }

            // Attempt to provide a suitable version of the 'body' field.

            else {

              $output = $sanitize ? _text_sanitize($instance, $field_langcode, $items[0], 'value') : $items[0]['value'];

              // A summary was requested.

              if ($name == 'summary') {

                if (isset($instance['display']['teaser']['settings']['trim_length'])) {

                  $trim_length = $instance['display']['teaser']['settings']['trim_length'];

                }

                else {

                  // Use default value.

                  $trim_length = NULL;

                }

                // Generate an optionally trimmed summary of the body field.

                $output = text_summary($output, $instance['settings']['text_processing'] ? $items[0]['format'] : NULL, $trim_length);

              }

            }

            $replacements[$original] = $output;

          }

          break;

        case 'language':

          $langcode = entity_language('node', $node);

          $replacements[$original] = $sanitize ? check_plain($langcode) : $langcode;

          break;

        case 'url':

          $replacements[$original] = url('node/' . $node->nid, $url_options);

          break;

        case 'edit-url':

          $replacements[$original] = url('node/' . $node->nid . '/edit', $url_options);

          break;

        // Default values for the chained tokens handled below.

        case 'author':

          $account = user_load($node->uid);

          $name = format_username($account);

          $replacements[$original] = $sanitize ? check_plain($name) : $name;

          break;

        case 'created':

          $replacements[$original] = format_date($node->created, 'medium', '', NULL, $language_code);

          break;

        case 'changed':

          $replacements[$original] = format_date($node->changed, 'medium', '', NULL, $language_code);

          break;

      }

    }

    if ($author_tokens = token_find_with_prefix($tokens, 'author')) {

      $author = user_load($node->uid);

      $replacements += token_generate('user', $author_tokens, array('user' => $author), $options);

    }

    if ($created_tokens = token_find_with_prefix($tokens, 'created')) {

      $replacements += token_generate('date', $created_tokens, array('date' => $node->created), $options);

    }

    if ($changed_tokens = token_find_with_prefix($tokens, 'changed')) {

      $replacements += token_generate('date', $changed_tokens, array('date' => $node->changed), $options);

    }

  }

  return $replacements;

}