A helper to allow named route with slug (named-route/{slug}) translation in mcamara/laravel-localization

laravel-localization-fix-localizedUrlWithSlugParameter.md

/**
 * Localize current URL having a {parameter}.
 *
 * Awaiting a fix to the laravel-localization package
 * this helper will translate any translated route
 * that accept a mandatory slug, but no ?query.
 *
 * GitHub issue: https://github.com/mcamara/laravel-localization/issues?utf8=%E2%9C%93&q=is%3Aissue%20is%3Aopen%20getLocalizedURL
 *
 * Improvments:
 * - redirect to parent category if empty slug;
 * - handle ?query (will be done when needed);
 * - findTheShorterNameForThisHelper;
 * - make it PSR compliant.
 *
 * @param  array  $slugs
 * @param  string  $loc
 * @return bool $absolute
 */
function localizedUrlWithSlugParameter(array $slugs, string $loc, bool $absolute = false) {
    $route_scheme = '/'.trans('routes.' . Route::currentRouteName() , [], $loc);

    // Check if translation exists and replace {slug}
    if(array_has($slugs, $loc) && strlen($slugs[$loc]) > 0)
    {
        if(preg_match('/{slug}/', $route_scheme))
        {
            $route_scheme = str_replace('{slug}', $slugs[$loc], $route_scheme);
        }
    }
    else
    {
        $route_scheme = '';
    }

    // Generate route
    $route = '';
    if($absolute)
    {
        $route = request()->getScheme().':'.request()->getSchemeAndHttpHost();
    }

    return $route.'/'.$loc.$route_scheme;
}