<?php
// $Id: notifications_nodetype.module,v 1.1.2.5 2010-04-26 17:15:32 jareyero Exp $
/**
 * @file
 * Notifications content type extension
 */

/**
 * Implementation of hook_help()
 */
function notifications_nodetype_help($path, $arg) {
  switch ($path) {
    case 'admin/messaging/notifications/events':
      $output = '<p>' . t('When an event type has subtypes, the parent type and each of the subtypes you want to produce notifications must be enabled.') . '</p>';
      return $output;
  }
}

/**
 * Check if this type of event is enabled for this content type
 */
function notifications_nodetype_enabled($type, $action) {
  return notifications_content_type_enabled($type) && notifications_event_enabled('node-' . $type . '-' . $action, FALSE);
}
/**
 * Implementation of hook_notifications()
 */
function notifications_nodetype_notifications($op, $event = NULL, $arg1 = NULL, $arg2 = NULL) {
  switch ($op) {
    case 'event types':
      // Creates a new one for each content type x node event types
      // @see notifications_content_notifications()
      $types = array();
      foreach (node_get_types() as $type => $info) {
        // Don't provide more options for content types that are disabled, we don't want to mess up everything
        if (notifications_content_type_enabled($type, NULL)) {
          // Node inserts are not grouped by node but all together. The digest will look like:
          //   New content has been submitted
          //   - Story Title1 by Author1
          //   - Event Title2 by Author2
          $variables = array('@name' => $info->name);
          $prefix = 'node-' . $type;
          $template = 'notifications-content-' . $type;
          $types[$prefix . '-insert'] = array(
            'type' => 'node',
            'action' => 'insert',
            'name' => t('A new @name has been submitted', $variables),
            'line' => t('@name: [title] by [author-name]', $variables),
            'digest' => array('node', 'type'),
            'description' => t('Create @name', $variables),
            'template' => $template . '-insert',
            'parent' => 'node-insert',
          );
          // These other events are grouped for each node. The digest will look like:
          //   Story: Title of the story
          //   - The story has been updated
          //   - New comment by User: Comment title
          $types[$prefix . '-update'] = array(
            'type' => 'node',
            'action' => 'update',
            'name' => t('Update for @name: [title]', $variables),
            'line' => t('The @name has been updated', $variables),
            'digest' => array('node', 'nid'), 
            'description' => t('Update @name', $variables),
            'template' => $template . '-update',
            'parent' => 'node-update',
          );      
          $types[$prefix . '-comment'] = array(
            'type' => 'node',
            'action' => 'comment',
            'name' => t('Comment for @name: [title]', $variables),
            'line' => t('New comment by [comment-author-name]: [comment-title]'), 
            'digest' => array('node', 'nid'),
            'description' => t('New comment for @name', $variables),
            'template' => $template . '-comment',
            'parent' => 'node-comment',
          );
        }
      }
      return $types;
  }
}

/**
 * Implementation of hook notifications_event()
 * 
 * Update event key for node events so we can handle the templates for it later.
 */
function notifications_nodetype_notifications_event($op, $event = NULL) {
  if ($op == 'build' && $event->type == 'node' && in_array($event->action, array('insert', 'update', 'comment'))) {
    $node = $event->get_object('node');
    // Fix event key and check again whether this is enabled
    $event->typekey = 'node-' . $node->type . '-' . $event->action;
    if (!notifications_event_enabled($event->typekey)) {
      $event->save = $event->queue = FALSE;
    }
  }
}

/**
 * Implementation of hook_notifications_templates()
 */
function notifications_nodetype_notifications_templates($op, $type = 'all', $language = NULL) {
  switch ($op) {
    case 'help':
      if (strpos($type, 'notifications-content') === 0) {
        $help[] = t('The <em>Header</em> and <em>Footer</em> will be taken from Notifications events.');
        $help[] = t('The <em>Digest line</em> will be used when composing Short digests on which each event will be just a line.');
        return $help;
      }
      break;
    case 'info':  
      $templates = array();
      if ($type == 'all') {
        foreach (node_get_types() as $node_type => $type_info) {
          foreach (array('insert', 'update', 'comment', '') as $action) {
            $templates += notifications_nodetype_template($type_info, $action);
          }
        }
      }
      elseif (strpos($type, 'notifications-content-') === 0) {
        list($module, $content, $node_type, $action) = split('-', $type);
        $templates = node_get_types($node_type);
      }
      return $templates;
    case 'parts':      
      if (strpos($type, 'notifications-content') === 0) { 
          return array(
            'subject' => t('Subject'),
            'main' => t('Content'),
            'digest' => t('Digest line'),
          );
      }
      /*
       * @todo Think about more digesting options
      if (strpos($type, 'notifications-digest-content') === 0) {
        case 'notifications-digest-node-nid':
        case 'notifications-digest-node-type':
          $parts['title'] = t('Group title');
          $parts['closing'] = t('Group footer');
          return $parts;
      }
      */
      break;
    case 'defaults':
      if (strpos($type, 'notifications-content-') === 0) {
        list($module, $content, $node_type, $action) = split('-', $type);
        $type_info = node_get_types($node_type);
        $variables = array('@name' => $type_info->name);
        // Common parts for all actions
        $text = array(
          'main' => array(
            '[node-teaser]',
            t('Read more [node-url]'),
          ),
          'digest' => array(
            '[title]',
            'Read more [node-url]',
          ),      
        );
        switch ($action) {
          case 'insert':
            $text['subject'] = t('New @name: [title]', $variables, $language->language);
            break;           
          case 'comment': 
            $text = array(
              'subject' => t('Comment for @name: [title]', $variables, $language->language),
              'main' => array(
                t('Comment by [comment-author-name]: [comment-title]', array(), $language->language),
                '[comment-body]',
                t('Read more [comment-url]', array(), $language->language),
              ),
              'digest' => array(
                t('New Comment on [title] by [comment-author-name] titled [comment-title]', array(), $language->language),
                t('Read more [comment-url]', array(), $language->language),
              ),
            );
            break;
          case 'update':          
          default:
            $text['subject'] = t('Update for @name: [title]', $variables, $language->language);
            break;    
        }
        return $text;
      }
      break;

    case 'tokens':
      if (strpos($type, 'notifications-content-') === 0) {
        list($module, $content, $node_type, $action) = split('-', $type);
        $args = explode('-', $type) + array(2 => '', 3 => '');
        $tokens = array();
        // These are the token groups that will be used for this module's messages
        $tokens[] = 'node';
        if ($action == 'comment') {
          $tokens[] = 'comment';
        }
        return $tokens;
      }
      break;
  }
}

/**
 * Build single template
 */
function notifications_nodetype_template($type_info, $action) {
  $variables = array('@name' => $type_info->name);
  $type = $type_info->type;
  $key = 'notifications-content-' . $type . ($action ? '-' . $action : '');
  switch ($action) {
    case 'insert':
      $template = array(
        'name' => t('Notifications for @name creation', $variables),
        'description' => t('Notifications produced when a @name is created.', $variables), 
        'fallback' => 'notifications-event-node-insert',
      );
      break;
    case 'update':
      $template = array(
        'name' => t('Notifications for @name updates', $variables),
        'description' => t('Notifications produced when a @name is updated.', $variables), 
        'fallback' => 'notifications-event-node-update',
      );
      break;
    case 'comment':      
      $template = array(
        'name' => t('Notifications for @name comments', $variables),
        'description' => t('Notifications produced when a comment is posted to a @name.', $variables), 
        'fallback' => 'notifications-event-node-comment',
      );
      break;
    default:
      $template = array(
        'name' => t('Notifications for @name events', $variables),
        'description' => t('Defaults for all notifications related to content of type @name.', $variables), 
        'fallback' => 'notifications-event-node',
      );
      break;
  }
  $template['module'] = 'notifications_nodetype';
  return array($key => $template);
}