<?php

namespace wchat\wx\V3;

use Exception;
use Kiri\Client;
use wchat\wx\SmallProgram;

class WxV3Payment extends SmallProgram
{


    use WxV3PaymentTait;


	/**
	 * @param $orderNo
	 * @param int $total
	 * @param string|null $openId
	 * @param string $payer_client_ip
	 * @return array
	 * @throws Exception
	 */
    public function payment($orderNo, int $total, string $openId = NULL, string $payer_client_ip = '127.0.0.1'): array
    {
        $body = $this->getInitCore($orderNo, $total);
        $body['payer'] = ['openid' => $openId];
        $body['scene_info'] = ['payer_client_ip' => $payer_client_ip];

        $sign = $this->signature('POST', '/v3/pay/transactions/jsapi', $json = json_encode($body, JSON_UNESCAPED_UNICODE));

        $client = new Client('api.mch.weixin.qq.com', 443, TRUE);
        $client->withAddedHeader('Authorization', $sign)
	        ->withContentType('application/json')->withAddedHeader('User-Agent', 'application/json')
	        ->withBody($json)->withAddedHeader("Accept", "*/*");

        $proxyHost = $this->getConfig()->getProxyHost();
        $proxyPort = $this->getConfig()->getProxyPort();
        if (!empty($proxyHost) && $proxyPort > 0) {
            $client->withProxyHost($proxyHost)->withProxyPort($proxyPort);
        }

        $client->post('/v3/pay/transactions/jsapi');
        $client->close();

        $json = json_decode($client->getBody(), TRUE);
        if (!isset($json['prepay_id'])) {
            throw new Exception('微信支付调用失败');
        }

        return $this->createResponse($json, $body);
    }


}