<?php
// $Id: votingapiactivity.module,v 1.1.2.5.2.5 2009-04-21 08:51:21 jaydub Exp $

/**
 * Activity definition file
 *
 * This defines what hooks activity module should use
 */
function votingapiactivity_activity_info() {
  $tags = array();
  $query = db_query("SELECT DISTINCT tag FROM {votingapi_cache}");
  while ($result = db_fetch_array($query)) {
    $tags[$result['tag']] = $result['tag'];
  }
  return array(
    'ops' => array('vote' => t('Vote')),
    'types' => $tags,
    'roles' => array(
      'author' => array(
        '#name' => t('Author'),
        '#description' => t('The person who voted'),
        '#default' => t('[author] voted on the [content-type] [content-link]'),
      ),
      'all' => array(
        '#name' => t('All'),
        '#description' => t('The general public.'),
        '#default' => t('[author-all] voted on the [content-type] [content-link]'),
      ),
    ),
  );
}

/** 
 * Implementation of hook_activityapi().
 */
function votingapiactivity_activityapi(&$activity, $op) {
  if ($op == 'load') {
    if ($activity['data']['module'] == 'votingapiactivity' && !node_access('view', node_load($activity['data']['content-nid']))) {
      $activity = array();
    }
  }
}

/**
 * Token module integration. Defines available default tokens.
 */
function votingapiactivity_token_list($type = 'all') {
  if ($type == 'votingapiactivity') {
    $tokens['votingapiactivity'] = array(
      'author-vote' 	=> t('Value of the author\'s vote'),
      'content-type' 	=> t('Content type that was voted on such as "story" or "image" or "comment"'),
      'content-id'  	=> t('Id of the content that was voted upon (could be node Id or comment Id)'),
      'content-nid'  	=> t('Id of the node that was voted upon'),
      'content-cid'  	=> t('Id of the comment that was voted upon'),
      'content-title'  	=> t('Title of the content that was voted upon'),
      'content-link' 	=> t('Link to the content that was voted upon'),
      'content-vote-avg' => t('Average of all votes for this content'),
      'content-vote-count' => t('Count of all votes for this content'),
    );
    return $tokens;
  }
}

/**
 * Token module integration. Defines available default token values.
 */
function votingapiactivity_token_values($type, $data = NULL, $options = array()) {
  if ($type == 'votingapiactivity' && !empty($data)) {
    $author_vote = db_fetch_object(db_query('SELECT value FROM {votingapi_vote} WHERE uid = %d AND content_id = %d', $data['uid'], $data['content-id']));
    $data['author-vote'] = $author_vote->value;
    $content_votes = db_query('SELECT value, function FROM {votingapi_cache} WHERE content_id = %d', $data['content-id']);
    while ($row = db_fetch_object($content_votes)) {
      $content_vote[$row->function] = $row->value;
    }
    $data['content-vote-avg'] = $content_vote['average'];
    $data['content-vote-count'] = $content_vote['count'];
    $data['content-type'] = ($data['content-type'] == t('comment')) ? $data['content-type'] : theme('activity_node_type', $data['content-type']);

    $link_attributes = array();
    if ($data['content-type'] == t('comment')) {
      $link_attributes['fragment'] = 'comment-'. $data['content_id'];
    }
    $data['content-link'] = l($data['content-title'], 'node/'. $data['content-nid'], $link_attributes);
    return $data;
  }
}

/**
 * Implementation of hook_votingapi_insert()
 */
function votingapiactivity_votingapi_insert($votes) {
  foreach ($votes as $vote) {

    // Check if both type and operation are
    // enabled for activity. If not then stop here
    if (!in_array($vote['tag'], variable_get('votingapiactivity_token_types', array($vote['tag'])), TRUE) || 
      !in_array('vote', variable_get('votingapiactivity_op_types', array('vote')), TRUE)) {
      return FALSE;
    }
    
    // let's not write a record if the voter is
    // anonymous or otherwise not valid
    if ($vote['uid'] == 0 || (!$user = user_load(array('uid' => $vote['uid'])))) {
      return FALSE;
    }
    
    // Privacy setting check
    if (activity_user_privacy_optout($user)) {
      return FALSE;
    }
    
    // User hide activity permission check
    if (user_access('hide activity', $user)) {
      return FALSE;
    }

    // Only handle votes on nodes or comments for now
    if ($vote['content_type'] == 'node') {
      $content = node_load($vote['content_id']);
    }
    else if ($vote['content_type'] == 'comment') {
      $content = _comment_load($vote['content_id']);
      $content->type = t('comment');
      $content->title = $content->subject;
    }
    else {
      return FALSE;
    }

    $data = array(
      'content-id' 		=> $vote['content_id'],
      'content-nid'		=> $content->nid,
      'content-type' 	=> $content->type,
      'content-title' 	=> $content->title,
    );
    
    if ($vote['content_type'] == 'comment') {
      $data['content-cid'] = $content->cid;
    }
    
    $target_users_roles = array(
      ACTIVITY_ALL => 'all',
      $user->uid => 'author'
    );
    
    activity_insert($user->uid, 'votingapiactivity', 'vote', 'vote', $data, $target_users_roles);
  }
}