新增系列配置

business/utils/wechat.go

@@ -2,28 +2,48 @@ package utils
 
 import (
 	"fmt"
+	"github.com/bwmarrin/snowflake"
 	"github.com/dgb8901/go-wechat-miniapp-sdk/config"
 	"github.com/dgb8901/go-wechat-miniapp-sdk/models/response"
 	"github.com/dgb8901/go-wechat-miniapp-sdk/service"
 	"github.com/spf13/viper"
+	"github.com/wechatpay-apiv3/wechatpay-go/core"
+	"github.com/wechatpay-apiv3/wechatpay-go/core/option"
+	"github.com/wechatpay-apiv3/wechatpay-go/services/refunddomestic"
+	"github.com/wechatpay-apiv3/wechatpay-go/utils"
+	"go.uber.org/zap"
+	"golang.org/x/net/context"
+	"log"
 	"pet-house.com/core/g"
 	"pet-house.com/core/server/viper_server"
+	"pet-house.com/core/server/web"
+	"pet-house.com/core/server/zap_server"
 )
 
 var CONFIG = WxConfig{
-	AppId:         "",
-	Secret:        "",
-	Token:         "",
-	AesKey:        "",
-	MsgDataFormat: "",
+	AppId:                      "",
+	Secret:                     "",
+	Token:                      "",
+	AesKey:                     "",
+	MsgDataFormat:              "",
+	MchId:                      "",
+	MchCertificateSerialNumber: "",
+	MchAPIv3Key:                "",
+	PrivateKeyPath:             "",
+	WechatCert:                 "",
 }
 
 type WxConfig struct {
-	AppId         string `mapstructure:"appId" json:"appId" yaml:"appId"`
-	Secret        string `mapstructure:"secret" json:"secret" yaml:"secret"`
-	Token         string `mapstructure:"token" json:"token" yaml:"token"`
-	AesKey        string `mapstructure:"aesKey" json:"aesKey" yaml:"aesKey"`
-	MsgDataFormat string `mapstructure:"msgDataFormat" json:"msgDataFormat" yaml:"msgDataFormat"`
+	AppId                      string `mapstructure:"appId" json:"appId" yaml:"appId"`
+	Secret                     string `mapstructure:"secret" json:"secret" yaml:"secret"`
+	Token                      string `mapstructure:"token" json:"token" yaml:"token"`
+	AesKey                     string `mapstructure:"aesKey" json:"aesKey" yaml:"aesKey"`
+	MsgDataFormat              string `mapstructure:"msgDataFormat" json:"msgDataFormat" yaml:"msgDataFormat"`
+	MchId                      string `mapstructure:"mchId" json:"mchId" yaml:"mchId"`
+	MchCertificateSerialNumber string `mapstructure:"mchCertificateSerialNumber" json:"mchCertificateSerialNumber" yaml:"mchCertificateSerialNumber"`
+	MchAPIv3Key                string `mapstructure:"mchAPIv3Key" json:"mchAPIv3Key" yaml:"mchAPIv3Key"`
+	PrivateKeyPath             string `mapstructure:"privateKeyPath" json:"privateKeyPath" yaml:"privateKeyPath"`
+	WechatCert                 string `mapstructure:"wechatCert" json:"wechatCert" yaml:"wechatCert"`
 }
 
 // getViperConfig get viper config
@@ -49,12 +69,18 @@ func getViperConfig() viper_server.ViperConfig {
 	"token": "` + CONFIG.Token + `",
 	"aesKey": "` + CONFIG.AesKey + `",
 	"msgDataFormat": ` + CONFIG.MsgDataFormat + `
+	"mchId": ` + CONFIG.MchId + `
+	"mchCertificateSerialNumber": ` + CONFIG.MchCertificateSerialNumber + `
+	"mchAPIv3Key": ` + CONFIG.MchAPIv3Key + `
+	"privateKeyPath": ` + CONFIG.PrivateKeyPath + `
+	"wechatCert": ` + CONFIG.WechatCert + `
 }`),
 	}
 }
 
 type WechatHelper struct {
-	wechatService *service.WxaService
+	wechatService   *service.WxaService
+	wechatPayClient *core.Client
 }
 
 var wxHelper = &WechatHelper{}
@@ -71,12 +97,36 @@ func WechatInit() {
 	wxaConfig := config.NewInMemory(cfg)
 	wxaService := service.NewService(wxaConfig)
 	wxHelper.wechatService = wxaService
+	getPayApi()
+}
+
+func getPayApi() {
+	// 使用 utils 提供的函数从本地文件中加载商户私钥，商户私钥会用来生成请求的签名
+	mchPrivateKey, err := utils.LoadPrivateKeyWithPath(CONFIG.PrivateKeyPath)
+	if err != nil {
+		log.Fatal("load merchant private key error")
+	}
+
+	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(CONFIG.MchId, CONFIG.MchCertificateSerialNumber, mchPrivateKey, CONFIG.MchAPIv3Key),
+	}
+	client, err := core.NewClient(ctx, opts...)
+	if err != nil {
+		log.Fatalf("new wechat pay client err:%s", err)
+	}
+	wxHelper.wechatPayClient = client
 }
 
 func getWxaService() *service.WxaService {
 	return wxHelper.wechatService
 }
 
+func GetWxPayService() *core.Client {
+	return wxHelper.wechatPayClient
+}
+
 type WxUserInfo struct {
 	OpenId  string
 	UnionId string
@@ -89,3 +139,33 @@ func GetWxUserInfo(code string) (*response.JsCode2SessionResult, error) {
 	}
 	return info, nil
 }
+
+func WxPayRefund(payId string, payOrderId string, orderAmount int64, ctx context.Context) {
+	ras := refunddomestic.RefundsApiService{Client: wxHelper.wechatPayClient}
+	var refundNo = new(string)
+	reason := "取消订单"
+	currency := "CNY"
+	notifyUrl := web.CONFIG.System.Domain + "/pet-house/pay/payNotify"
+
+	amount := refunddomestic.AmountReq{
+		Refund:   &orderAmount,
+		Total:    &orderAmount,
+		Currency: &currency,
+	}
+	var NextId, _ = snowflake.NewNode(1)
+	*refundNo = NextId.Generate().String()
+	var req = refunddomestic.CreateRequest{
+		TransactionId: &payId,
+		OutTradeNo:    &payOrderId,
+		OutRefundNo:   refundNo,
+		Reason:        &reason,
+		NotifyUrl:     &notifyUrl,
+		Amount:        &amount,
+	}
+	createResult, _, err := ras.Create(ctx, req)
+	if err != nil {
+		return
+	}
+	zap_server.ZAPLOG.Info("WxPayRefund", zap.Any("request", req), zap.Any("response", createResult))
+
+}