<?php

/**
 * @file
 * Utility module for cleaning up after failed cron jobs.
 */

/**
 * Implementation of hook_menu().
 */
function semiclean_menu() {
  return array('admin/reports/status/semiclean' => array(
    'title' => 'Semiclean',
    'access arguments' => array('administer site configuration'),
    'page callback' => '_semiclean_do_your_magic',
    'type' => MENU_CALLBACK,
  ));
}

/**
 * Implementation of hook_requirements().
 */
function semiclean_requirements($phase) {
  if ($phase == 'runtime') {
    $requirements = array();
    $requirements['semiclean']['title'] = t('Cron semaphore');
    $cron_semaphore = variable_get('cron_semaphore', FALSE);
    if ($cron_semaphore) {
      $requirements['semiclean']['value'] = t('Cron started at @time', array('@time' => format_date($cron_semaphore, 'large')));
      $requirements['semiclean']['severity'] = REQUIREMENT_WARNING;
      $requirements['semiclean']['description'] = t("If it seems like cron has been running for too long, or is otherwise stuck, you might need to reset the semaphore. !clean_now", array('!clean_now' => l(t('Clean now!'), 'admin/reports/status/semiclean')));
    }
    else {
      $requirements['semiclean']['value'] = t('Cron is not running');
      $requirements['semiclean']['severity'] = REQUIREMENT_OK;
    }
    return $requirements;
  }
}

/**
 * Menu callback to delete the cron semaphore.
 */
function _semiclean_do_your_magic() {
  drupal_cron_cleanup();
  drupal_set_message(t('Cron semaphore cleaned.'), 'status');
  drupal_goto('admin/reports/status');
}