<?php
namespace anoweco;

class Urls
{
    public static function comment($id)
    {
        return '/comment/' . intval($id) . '.htm';
    }

    public static function user($id)
    {
        return '/user/' . intval($id) . '.htm';
    }

    public static function userImg($rowUser = null)
    {
        if ($rowUser !== null && $rowUser->user_imageurl != '') {
            return $rowUser->user_imageurl;
        }
        return static::full('/img/anonymous.svg');
    }

    public static function full($str)
    {
        if (!isset($_SERVER['REQUEST_SCHEME'])) {
            $_SERVER['REQUEST_SCHEME'] = 'http';
        }
        return $_SERVER['REQUEST_SCHEME'] . '://'
            . $_SERVER['HTTP_HOST']
            . $str;
    }

    public static function userId($url)
    {
        $userbaseurl = Urls::full('/user/');
        if (substr($url, 0, strlen($userbaseurl)) != $userbaseurl) {
            return null;
        }
        //actual user URL - loads his data
        $userId = substr($url, strrpos($url, '/') + 1, -4);
        if (intval($userId) != $userId) {
            return null;
        }
        return intval($userId);
    }

    public static function reply($url)
    {
        return 'https://quill.p3k.io/'
            . '?' . http_build_query(
                [
                    'dontask' => 1,
                    'me'      => Urls::full('/'),
                    'reply'   => $url,
                ]
            );
    }
}
?>