<?php

/**
 * @file
 * Install, update and uninstall functions for the menu module.
 */

/**
 * Implements hook_schema().
 */
function menu_schema() {
  $schema['menu_custom'] = array(
    'description' => 'Holds definitions for top-level custom menus (for example, Main navigation menu).',
    'fields' => array(
      'menu_name' => array(
        'type' => 'varchar',
        'length' => 32,
        'not null' => TRUE,
        'default' => '',
        'description' => 'Primary Key: Unique key for menu. This is used as a block delta so length is 32.',
      ),
      'title' => array(
        'type' => 'varchar',
        'length' => 255,
        'not null' => TRUE,
        'default' => '',
        'description' => 'Menu title; displayed at top of block.',
        'translatable' => TRUE,
      ),
      'description' => array(
        'type' => 'text',
        'not null' => FALSE,
        'description' => 'Menu description.',
        'translatable' => TRUE,
      ),
    ),
    'primary key' => array('menu_name'),
  );

  return $schema;
}

/**
 * Implements hook_install().
 */
function menu_install() {
  $system_menus = menu_list_system_menus();
  $t = get_t();
  $descriptions = array(
    'tools' => $t('Contains links for site visitors. Some modules add their links here.'),
    'account' => $t('Links related to the user account.'),
    'admin' => $t('Contains links to administrative tasks.'),
    'main' => $t('Use this for linking to the main site sections.'),
    'footer' => $t('Use this for linking to site information.'),
  );
  foreach ($system_menus as $menu_name => $title) {
    $menu = array(
      'menu_name' => $menu_name,
      'title' => $t($title),
      'description' => $descriptions[$menu_name],
    );
    menu_save($menu);
  }
}

/**
 * Implements hook_uninstall().
 */
function menu_uninstall() {
  menu_router_rebuild();
}

/**
 * Moves menu settings from variables to config.
 *
 * @ingroup config_upgrade
 */
function menu_update_8000() {
  update_variables_to_config('menu.settings', array(
    'menu_main_links_source' => 'main_links',
    'menu_secondary_links_source' => 'secondary_links',
  ));
}

/**
 * Rename default menu names.
 */
function menu_update_8001() {
  // Only the internal identifiers are updated; the labels and descriptions
  // might have been customized and do not have to be renamed.
  $map = array(
    'navigation' => 'tools',
    'management' => 'admin',
    'user-menu' => 'account',
    'main-menu' => 'main',
  );
  foreach ($map as $old => $new) {
    db_update('menu_custom')
      ->condition('menu_name', $old)
      ->fields(array('menu_name' => $new))
      ->execute();
  }
}

/**
 * Adds the footer menu to custom menus.
 */
function menu_update_8002() {
  db_insert('menu_custom')
    ->fields(array(
      'menu_name' => 'footer',
      'title' => 'Footer menu',
      'description' => 'Use this for linking to site information.',
    ))
    ->execute();
}