<?php

/**

 * @file

 * User page callbacks for the profile module.

 */

/**

 * Menu callback; display a list of user information.

 */

function profile_browse() {

  // Ensure that the path is converted to 3 levels always.

  list(, $name, $value) = array_pad(explode('/', $_GET['q'], 3), 3, '');

  $field = db_query("SELECT DISTINCT(fid), type, title, page, visibility FROM {profile_field} WHERE name = :name", array(':name' => $name))->fetchObject();

  if ($name && $field->fid) {

    // Only allow browsing of fields that have a page title set.

    if (empty($field->page)) {

      return MENU_NOT_FOUND;

    }

    // Do not allow browsing of private and hidden fields by non-admins.

    if (!user_access('administer users') && ($field->visibility == PROFILE_PRIVATE || $field->visibility == PROFILE_HIDDEN)) {

      return MENU_ACCESS_DENIED;

    }

    // Compile a list of fields to show.

    $fields = db_query('SELECT name, title, type, weight, page, visibility FROM {profile_field} WHERE fid <> :fid AND visibility = :visibility ORDER BY weight', array(

      ':fid' => $field->fid,

      ':visibility' => PROFILE_PUBLIC_LISTINGS,

    ))->fetchAll();

    $query = db_select('users', 'u')->extend('PagerDefault');

    $query->join('profile_value', 'v', 'u.uid = v.uid');

    $query

      ->fields('u', array('uid', 'access'))

      ->condition('v.fid', $field->fid)

      ->condition('u.status', 0, '<>')

      ->orderBy('u.access', 'DESC');

    // Determine what query to use:

    $arguments = array($field->fid);

    switch ($field->type) {

      case 'checkbox':

        $query->condition('v.value', 1);

        break;

      case 'textfield':

      case 'selection':

        $query->condition('v.value', $value);

        break;

      case 'list':

        $query->condition('v.value', '%' . db_like($value) . '%', 'LIKE');

        break;

      default:

        return MENU_NOT_FOUND;

    }

    $uids = $query

      ->limit(20)

      ->execute()

      ->fetchCol();

    // Load the users.

    $users = user_load_multiple($uids);

    $content = '';

    foreach ($users as $account) {

      $profile = _profile_update_user_fields($fields, $account);

      $content .= theme('profile_listing', array('account' => $account, 'fields' => $profile));

    }

    $output = theme('profile_wrapper', array('content' => $content));

    $output .= theme('pager');

    if ($field->type == 'selection' || $field->type == 'list' || $field->type == 'textfield') {

      $title = strtr(check_plain($field->page), array('%value' => drupal_placeholder($value)));

    }

    else {

      $title = check_plain($field->page);

    }

    drupal_set_title($title, PASS_THROUGH);

    return $output;

  }

  elseif ($name && !$field->fid) {

    return MENU_NOT_FOUND;

  }

  else {

    // Compile a list of fields to show.

    $fields = db_query('SELECT name, title, type, weight, page, visibility FROM {profile_field} WHERE visibility = :visibility ORDER BY category, weight', array(':visibility' => PROFILE_PUBLIC_LISTINGS))->fetchAll();

    // Extract the affected users:

    $query = db_select('users', 'u')->extend('PagerDefault');

    $uids = $query

      ->fields('u', array('uid', 'access'))

      ->condition('u.uid', 0, '>')

      ->condition('u.status', 0, '>')

      ->orderBy('u.access', 'DESC')

      ->limit(20)

      ->execute()

      ->fetchCol();

    $users = user_load_multiple($uids);

    $content = '';

    foreach ($users as $account) {

      $profile = _profile_update_user_fields($fields, $account);

      $content .= theme('profile_listing', array('account' => $account, 'fields' => $profile));

    }

    $output = theme('profile_wrapper', array('content' => $content));

    $output .= theme('pager');

    drupal_set_title(t('User list'));

    return $output;

  }

}

/**

 * Callback to allow autocomplete of profile text fields.

 */

function profile_autocomplete($field, $string) {

  $matches = array();

  $autocomplete_field = (bool) db_query_range("SELECT 1 FROM {profile_field} WHERE fid = :fid AND autocomplete = 1", 0, 1, array(':fid' => $field))->fetchField();

  if ($autocomplete_field) {

    $values = db_select('profile_value')

      ->fields('profile_value', array('value'))

      ->condition('fid', $field)

      ->condition('value', db_like($string) . '%', 'LIKE')

      ->groupBy('value')

      ->orderBy('value')

      ->range(0, 10)

      ->execute()->fetchCol();

    foreach ($values as $value) {

      $matches[$value] = check_plain($value);

    }

  }

  drupal_json_output($matches);

}