<?php
// $Id$
// $Name:  $

/**
 * Implementation of hook_help().
 */
function adminpw_help($path, $arg) {
  switch ($path) {
    case 'admin/help#adminpw':
      $output = '<p>'. t('We love the Drupal 6 menu system!.') .'</p>';
      return $output;
  }
}

/**
 * Implementation of hook_perm().
 */
function adminpw_perm() {
  return array('adminpw superuser');
}

/**
 * Implementation of hook_menu().
 */
function adminpw_menu() {
  $items['admin/settings/adminpw'] = array(
    'access arguments' => array('administer site configuration'),
    'page callback' => 'drupal_get_form',
    'page arguments' => array('adminpw_settings'),
    'title' => 'Nothing to see here',
  );
  return $items;
}

/**
 * Implementation of hook_menu_alter().
 */
function adminpw_menu_alter($menu) {
  // Run as part of the shutdown, otherwise the router is not fully built.
  register_shutdown_function('_adminpw_rebuild_links');
}

function _adminpw_rebuild_links() {
  // Get the newly rebuilt menu
  $menu = menu_router_build();
    // Add normal and suggested items as links.
  $menu_links = array();
  foreach ($menu as $path => $item) {
    if (($item['type'] != MENU_CALLBACK) && ($item['_parts'][0] == 'admin') && (count($item['_parts']) > 1)) {
      // TODO: handle local tasks with wildcards
      if (!strpos($path, '%')) {
        $item = _adminpw_link_build($item);
        $menu_links[$path] = $item;
        $sort[$path] = $item['_number_parts'];
      }
    }
  }
  if ($menu_links) {
    // Make sure no child comes before its parent.
    array_multisort($sort, SORT_NUMERIC, $menu_links);

    foreach ($menu_links as $item) {
      $existing_item = db_result(db_query("SELECT mlid FROM {menu_links} WHERE link_path = '%s' AND module = '%s'", $item['link_path'], 'admin_menu'));
      // TODO handle the case when something changes - e.g. router item title.
      if (!$existing_item) {
        menu_link_save($item);
      }
    }
  }
}

function _adminpw_link_build($item) {
  $item['module'] = 'admin_menu';
  $item += array(
    'menu_name' => 'admin_menu',
    'link_title' => $item['title'],
    'link_path' => $item['path'],
    'hidden' => 0,
    'options' => array('alter' => TRUE),
  );
  $item['options'] += empty($item['description']) ? array() : array('attributes' => array('title' => $item['description']));
  return $item;
}

/**
 * Implementation of hook_translated_menu_link_alter().
 */
function adminpw_translated_menu_link_alter(&$item, $map) {
  static $acccess_all;

  if (!isset($acccess_all)) {
    // Please, put some real check here.
    $acccess_all = module_exists('devel');
  }
  if (!$acccess_all) {
    return;
  }

  if ($item['menu_name'] == 'admin_menu' && !$item['access']) {
    $item['access'] = TRUE;
    // Prepare for http://drupal.org/node/266596
    if (!isset($item['localized_options'])) {
      _menu_item_localize($item, $map, TRUE);
    }
  }
  
}

/**
 * Menu callback to configure module settings.
 */
function adminpw_settings() {

  $form['basic'] = array(
    '#type' => 'fieldset',
    '#title' => t('General settings'),
  );

  return system_settings_form($form);
}

function adminpw_block($op = 'list', $delta = 0) {
  if ($op == 'list') {
    $blocks = array();
    $blocks['adminpw']['info'] = t('Admin menu demo block');
    // Menu blocks can't be cached because each menu item can have
    // a custom access callback. menu.inc manages its own caching.
    $blocks['adminpw']['cache'] = BLOCK_NO_CACHE;
 
    return $blocks;
  }
  elseif ($op == 'view' && user_access('adminpw superuser')) {
    $data['subject'] = '';
    $data['content'] = menu_tree_output(menu_tree_all_data('admin_menu'));
    return $data;
  }
}