<?php

/**
 * @file
 * Installation tasks for "Simple hierarchical select".
 */

/**
 * Implements hook_requirements().
 */
function shs_requirements($phase) {
  $requirements = array();
  $t = get_t();

  if ($phase !== 'runtime' || !module_exists('chosen')) {
    return $requirements;
  }
  if (($info = drupal_get_library('chosen', 'chosen')) === FALSE) {
    return $requirements;
  }
  // Chosen version should be at least 1.0.
  if (version_compare($info['version'], '1.1.0') < 0) {
    $requirements['shs'] = array(
      'title' => $t('Simple hierarchical select: chosen integration'),
      'description' => $t('If you would like to use chosen with Simple hierarchical select you need to install at least version 1.1.0 of !chosen_library.', array('!chosen_library' => l($t('Chosen'), 'http://harvesthq.github.io/chosen/'))),
      'severity' => REQUIREMENT_WARNING,
      'value' => $t('Chosen library too old (installed version is !version)', array('!version' => $info['version'])),
    );
  }

  return $requirements;
}