<?php

namespace services;

class MarketService extends BaseService {

    const TOKEN_SALT = 'B8E6BD4F-FD7B-E2B8-6688-80A2D8632064';

    public static function isValidToken($account, $token)
    {
        $deToken = base64_decode($token);
        if (empty($deToken)) {
            return false;
        }
        if (empty($account)) {
            return false;
        }
        $data = json_decode($deToken, true);
        $sign = md5(self::TOKEN_SALT .
                    $data['account'] .
                    $data['rand'] .
                    $data['nonce'] .
                    $data['createtime']);
        if ($sign == $data['sign']) {
            return phpcommon\isSameAddress($data['account'], $account);
        }
        return false;
    }

    public static function genToken($account, $nonce)
    {
        $data = array(
            'account' => $account,
            'rand' => uniqid(),
            'nonce' => $nonce,
            'createtime' => myself()->_getNowTime(),
        );
        $data['sign'] = md5(TOKEN_SALT .
                            $data['account'] .
                            $data['rand'] .
                            $data['nonce'] .
                            $data['createtime']);
        return base64_encode(json_encode($data));
    }

}