<?php

namespace App\Services;

use AlibabaCloud\Client\Config\Config;
use Alipay\EasySDK\Kernel\CertEnvironment;
use Alipay\EasySDK\Kernel\EasySDKKernel;
use Alipay\EasySDK\Payment\App\Client as AppClient;

class AlipayService
{
    /**
     * 支付
     *
     * @param array $params
     * @return array
     */
    public function pay(array $params)
    {
        $result = $this->app()->pay(
            $params['subject'],
            $params['out_trade_no'],
            $params['total_amount'],
        );

        return [
            'body' => $result->body,
        ];
    }

    /**
     * App 支付客户端
     *
     * @return AppClient
     */
    protected function app(): AppClient
    {
        $kernel = new EasySDKKernel($this->getConfig());

        return new AppClient($kernel);
    }

    /**
     * 获取支付宝配置信息
     *
     * @return \AlibabaCloud\Client\Config\Config
     */
    protected function getConfig(): Config
    {
        $configs = config('alipay');

        $cfg = new Config();
        $cfg->protocol = 'https';
        $cfg->gatewayHost = 'openapi.alipay.com';
        $cfg->signType = 'RSA2';
        $cfg->appId = $configs['app_id'];
        $cfg->merchantPrivateKey = $configs['app_private_key'];
        $cfg->merchantCertPath = $configs['app_public_cert_path'];
        $cfg->alipayCertPath = $configs['public_cert_path'];
        $cfg->alipayRootCertPath = $configs['root_cert_path'];
        $cfg->notifyUrl = $configs['notify_url'] ?? url(route('alipay.paid_notify', [], false), [], true);

        $certEnvironment = new CertEnvironment();
        $certEnvironment->certEnvironment(
            $cfg->merchantCertPath,
            $cfg->alipayCertPath,
            $cfg->alipayRootCertPath
        );
        $cfg->merchantCertSN = $certEnvironment->getMerchantCertSN();
        $cfg->alipayRootCertSN = $certEnvironment->getRootCertSN();
        $cfg->alipayPublicKey = $certEnvironment->getCachedAlipayPublicKey();

        return $cfg;
    }
}