<?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.
// $Id$

//this script may only be included - so its better to die if called directly.
if (strpos($_SERVER['SCRIPT_NAME'], basename(__FILE__)) !== false) {
    header('location: index.php');
    exit;
}

/**
 * @return array
 */
function module_switch_theme_info()
{
    return [
        'name' => tra('Switch Theme'),
        'description' => tra('Enables to quickly change the theme for the user.'),
        'prefs' => ['change_theme'],
        'params' => []
    ];
}

/**
 * @param $mod_reference
 * @param $module_params
 */
function module_switch_theme($mod_reference, &$module_params)
{
    global $prefs, $section, $group_theme, $tc_theme, $tc_theme_option;
    $smarty = TikiLib::lib('smarty');
    $themelib = TikiLib::lib('theme');

    //get the list of available themes and options
    $smarty->assign('available_themes', $themelib->get_available_themes());
    $smarty->assign('available_options', $themelib->get_available_options($prefs['theme']));

    //check if CSS Editor's try theme is on
    if (! empty($_SESSION['try_theme'])) {
        list($css_theme, $css_theme_option) = $themelib->extract_theme_and_option($_SESSION['try_theme']);
    } else {
        $css_theme = '';
    }

    if (
        ! empty($tc_theme) ||
        ! empty($group_theme) ||
        (($section === 'admin' || empty($section)) && ! empty($prefs['theme_admin'])) ||
        ! empty($css_theme)
    ) {
        $info_title = tra('Not allowed here') . ':' .
            tra('Displayed theme') . ': ' . $prefs['theme'] . (! empty($prefs['theme_option']) ? '/' . $prefs['theme_option'] : '');

        if (! empty($css_theme)) {
            $info_title .= ' (' . tra('Edit CSS') . ')';
        } elseif (! empty($tc_theme)) {
            $info_title .= ' (' . tra('Theme Control') . ')';
        } elseif (($section === 'admin' || empty($section)) && ! empty($prefs['theme_admin'])) {
            $info_title .= ' (' . tra('Admin Theme') . ')';
        } elseif ($group_theme) {
            $info_title .= ' (' . tra('Group theme') . ')';
        }

        $smarty->assign('switchtheme_enabled', false);
        $smarty->assign('info_title', $info_title);
    } else {
        $smarty->assign('switchtheme_enabled', true);
        $smarty->assign('info_title', '');
    }

    $smarty->clear_assign('tpl_module_title'); // TPL sets dynamic default title
}