<?php

namespace Lib;

class Language
{

    public static $locale = null;
    public static $available_locales = null;

    public static $config = array();

    private static $items = array();
    private static $javascript_items = array();

    public static function init()
    {
        global $config;

        Language::$available_locales = $config['available_locales'];

        if (isset($_GET['locale'])) {
            $locale = $_GET['locale'];
        } else {
            $locale = isset($_COOKIE['locale']) && $_COOKIE['locale'] != '' ? $_COOKIE['locale'] : DEFAULT_LOCALE;
        }

        if (!in_array($locale, Language::$available_locales)) {
            $locale = DEFAULT_LOCALE;
        }
        if (isset($_GET['locale'])) {
            setcookie("locale", $locale, time() + (86400 * 365), '/');
            header('Location: /');
            exit;
        };

        Language::$locale = $locale;

    }

    public static function ensure_language_data($area, $javascript = false)
    {

        if ($javascript && !isset(static::$javascript_items[$area])) {

            $path = LANG_PATH . static::$locale . DIRECTORY_SEPARATOR . 'javascript' . DIRECTORY_SEPARATOR . $area . '.php';
            $lang = null;
            require_once $path;
            static::$javascript_items[$area] = $lang;

        } elseif (!isset(static::$items[$area])) {
            $path = LANG_PATH . static::$locale . DIRECTORY_SEPARATOR . $area . '.php';
            $lang = null;
            require_once $path;
            static::$items[$area] = $lang;
        }
    }

    public static function item($area, $item)
    {
        static::ensure_language_data($area);
        $item = static::$items[$area][$item];
        return $item;
    }


    public static function javascript_area($area)
    {
        static::ensure_language_data($area, true);
        $area = static::$javascript_items[$area];
        return $area;
    }
}

?>