<?php

// (c) Copyright by authors of the Tiki Wiki CMS Groupware Project
//
// All Rights Reserved. See copyright.txt for details and a complete list of authors.
// Licensed under the GNU LESSER GENERAL PUBLIC LICENSE. See license.txt for details.
// $Id$

function refresh_search_index()
{
    // *DON'T* *DO* *THIS*
    // I just tested, and session_write_close loses the database connection on
    // my machine! None of the indexing can succeed after that!
    // WAS: first write close the session. refreshing can take a huge amount of time
    // WAS session_write_close();

    // check if we have to run. Run every n-th click:
    global $prefs;
    list($usec, $sec) = explode(" ", microtime());
    srand(ceil($sec + 100 * $usec));

    if ($prefs['search_refresh_rate'] > 0 && rand(1, $prefs['search_refresh_rate']) == 1) {
        // get a random location
        $locs = [];

        if ($prefs['feature_wiki'] == 'y') {
            $locs[] = "random_refresh_index_wiki";
        }

        if ($prefs['feature_forums'] == 'y') {
            $locs[] = "random_refresh_index_forum";
        }

        if ($prefs['feature_trackers'] == 'y') {
            $locs[] = "random_refresh_index_trackers";
            $locs[] = "random_refresh_index_tracker_items";
        }

        if ($prefs['feature_articles'] == 'y') {
            $locs[] = "random_refresh_index_articles";
        }

        if ($prefs['feature_blogs'] == 'y') {
            $locs[] = "random_refresh_index_blogs";
            $locs[] = "random_refresh_index_blog_posts";
        }

        if ($prefs['feature_faqs'] == 'y') {
            $locs[] = "random_refresh_index_faqs";
            $locs[] = "random_refresh_index_faq_questions";
        }

        if ($prefs['feature_directory'] == 'y') {
            $locs[] = "random_refresh_index_dir_cats";
            $locs[] = "random_refresh_index_dir_sites";
        }

        if ($prefs['feature_file_galleries'] == "y") {
            $locs[] = "random_refresh_filegal";
            $locs[] = "random_refresh_file";
        }

        // comments can be everywhere?
        $locs[] = "random_refresh_index_comments";
        // some refreshes to enhance the refreshing stats
        $locs[] = "refresh_index_oldest";
        $location = $locs[rand(0, count($locs) - 1)];
        call_user_func($location);
    }
}