<?php
/*
 * File: ratatoeskr/sys/translation.php
 * Load translation.
 *
 * License:
 * This file is part of Ratatöskr.
 * Ratatöskr is licensed unter the MIT / X11 License.
 * See "ratatoeskr/licenses/ratatoeskr" for more information.
 */

use r7r\ste;
use r7r\cms\sys\Esc;

require_once(dirname(__FILE__) . "/init_ste.php");

/** @var ste\STECore $ste */
assert(isset($ste));

if (!defined("SETUP")) {
    require_once(dirname(__FILE__) . "/models.php");
}

if (!defined("TRANSLATION_PLUGIN_LOADED")) {
    $ste->register_tag(
        "get_translation",
        function ($ste, $params, $sub) {
            global $translation;
            if ((!isset($translation)) or empty($params["for"]) or (!isset($translation[$params["for"]]))) {
                return "";
            }
            $rv = $translation[$params["for"]];
            return (!empty($params["raw"])) ? $rv : Esc::esc($rv);
        }
    );
    define("TRANSLATION_PLUGIN_LOADED", true);
}

/*
 * Function: load_language
 * Load a language (i.e. set the global $translation variable).
 *
 * Parameters:
 *  $lang - The language (2-Letter code, e.g. "en", "de", "it" ...) to load. NULL for default (from database).
 */
function load_language($lang=null)
{
    if (!defined("SETUP")) {
        global $ratatoeskr_settings;
        if ($lang === null) {
            $lang = $ratatoeskr_settings["default_language"];
        }
    } else {
        if ($lang === null) {
            $lang = "en";
        }
    }

    /*
     * Because we will include an file defined by the $lang param, we will
     * only allow alphabetic characters, so this function should not be
     * vulnerable to LFI-Exploits...
     */
    $lang = implode("", array_filter(str_split($lang, 1), "ctype_alpha"));

    $translation = require(dirname(__FILE__) . "/../translations/$lang.php");

    $GLOBALS["translation"] = $translation;
}