<?php


namespace refill\zzx;

use refill;

class RefillCallBack implements refill\IRefillCallBack
{
    public function verify($params): bool
    {
        $input = $params;
        unset($input['sign']);

        $sign = $this->sign($input);
        if ($params['sign'] == $sign) {
            return true;
        } else {
            return false;
        }
    }

    private function check_empty($value)
    {
        if (!isset($value))
            return true;
        if ($value === null)
            return true;
        if (trim($value) === "")
            return true;

        return false;
    }

    private function sign($params)
    {
        ksort($params);

        $body = "";
        $i = 0;
        foreach ($params as $k => $v) {
            if (false === $this->check_empty($v) && "@" != substr($v, 0, 1)) {
                if ($i == 0) {
                    $body .= "{$k}" . "=" . urldecode($v);
                } else {
                    $body .= "&" . "{$k}" . "=" . urldecode($v);
                }
                $i++;
            }
        }

        $body .= "&key=" . config::KEY;
        return strtoupper(md5($body));
    }

    public function notify($params)
    {
        $status = intval($params['status']);
        $order_sn = $params['orderNum'];

        $order_info = Model('vr_order')->getOrderInfo(['order_sn' => $order_sn]);
        if (empty($order_info)) {
            return [false, false, false, false];
        }
        $order_id = $order_info['order_id'];
        $data['ch_trade_no'] = $params['voucherNo'];
        Model('refill_order')->edit($order_id, $data);
        if ($status === 1) {
            return [$order_id, true, false, true];
        } elseif ($status === 0) {
            return [$order_id, true, false, false];
        } else {
            return [$order_id, false, true, true];
        }
    }
}