package weChat

import (
	"context"
	"errors"
	"github.com/wechatpay-apiv3/wechatpay-go/core"
	"github.com/wechatpay-apiv3/wechatpay-go/core/option"
	"github.com/wechatpay-apiv3/wechatpay-go/utils"
	"hepa-calc-api/config"
)

// 创建客户端
func createClient() (*core.Client, error) {
	mchId := config.C.Wechat.Pay1659662936.MchId                                                          // 商户号
	mchCertificateSerialNumber := config.C.Wechat.Pay1659662936.MchCertificateSerialNumber                // 商户证书序列号
	v3ApiSecret := config.C.Wechat.Pay1659662936.V3ApiSecret                                              // 商户APIv3密钥
	privateKeyPath := "extend/weChat/certs/" + config.C.Wechat.Pay1659662936.MchId + "/apiclient_key.pem" // 商户私钥文件地址

	if mchId == "" {
		return nil, errors.New("商户号错误")
	}

	mchPrivateKey, err := utils.LoadPrivateKeyWithPath(privateKeyPath)
	if err != nil {
		return nil, errors.New("微信支付生成失败")
	}

	ctx := context.Background()
	// 使用商户私钥等初始化 client，并使它具有自动定时获取微信支付平台证书的能力
	opts := []core.ClientOption{
		option.WithWechatPayAutoAuthCipher(mchId, mchCertificateSerialNumber, mchPrivateKey, v3ApiSecret),
	}

	client, err := core.NewClient(ctx, opts...)
	if err != nil {
		return nil, errors.New(err.Error())
	}

	return client, nil
}