<?php
/** Interface language affects destination links, never the account resource. */
if (!defined('ABSPATH')) { exit; }
function fiftyw_media_site_locale($value = null) {
    if (FIFTYW_MEDIA_REGION === 'cn') { return 'zh-Hans'; }
    $raw = strtolower(str_replace('_', '-', $value ?? determine_locale()));
    $aliases = array('zh' => 'zh-Hans', 'zh-cn' => 'zh-Hans', 'zh-sg' => 'zh-Hans', 'zh-hans' => 'zh-Hans', 'zh-tw' => 'zh-Hant', 'zh-hk' => 'zh-Hant', 'zh-hant' => 'zh-Hant', 'es-mx' => 'es-MX', 'es-419' => 'es-MX', 'fr-ca' => 'fr-CA', 'pt-pt' => 'pt-PT', 'pt-br' => 'pt-BR', 'pt' => 'pt-BR');
    if (isset($aliases[$raw])) { return $aliases[$raw]; }
    $primary = explode('-', $raw)[0];
    return in_array($primary, array('en','ja','ko','es','fr','de','it','ru','ar','he','id','ms','nl','pl','th','tr','uk','vi','hi'), true) ? $primary : 'en';
}
function fiftyw_media_site_url($page = '', $locale = null) {
    if (!in_array($page, array('', 'api', 'purchase'), true)) { throw new InvalidArgumentException('Invalid site destination.'); }
    if (FIFTYW_MEDIA_REGION === 'cn') {
        return 'https://qzm.550wai.cn/' . ($page === 'api' ? 'api-keys' : ($page === 'purchase' ? 'purchase?tab=speed' : ''));
    }
    $language = fiftyw_media_site_locale($locale);
    return 'https://eraser.550wai.com/' . ($language === 'en' ? '' : $language . '/') . ($page ? $page . '/' : '');
}