duoduo/apis/shanghu/pay.go

package shanghu

import (
	"duoduo/apis/common"
	"duoduo/apis/shanghu/models"
	"duoduo/models/shanghu"
	"duoduo/tools"
	"duoduo/tools/app"
	"encoding/xml"
	"errors"
	"fmt"
	"github.com/gin-gonic/gin"
	"github.com/go-pay/gopay"
	"github.com/go-pay/gopay/wechat"
	wechatV3 "github.com/go-pay/gopay/wechat/v3"
	"github.com/shopspring/decimal"
	"net/http"
	"reflect"
	"strconv"
	"time"
)

type wechatCallbackResp struct {
	XMLName    xml.Name `xml:"xml"`
	ReturnCode Cdata    `xml:"return_code"`
	ReturnMsg  Cdata    `xml:"return_msg"`
}

type Cdata struct {
	Value string `xml:",cdata"`
}

var (
	successResp = &wechatCallbackResp{ReturnCode: Cdata{Value: "SUCCESS"}, ReturnMsg: Cdata{Value: "OK"}}
	failResp    = &wechatCallbackResp{ReturnCode: Cdata{Value: "FAIL"}, ReturnMsg: Cdata{Value: "数据处理异常"}}
)

func UnifiedOrder(c *gin.Context) {
	var inData models.UnifiedOrderRequest
	var sqlData shanghu.ClientPayTrans
	var outData models.UnifiedOrderReply

	err := c.ShouldBindJSON(&inData)
	if err != nil {
		app.Error(c, 400, err, err.Error())
		return
	}
	//校验 防止同一笔记录存在
	sqlData.RequestID = inData.RequestId
	if sqlData.GetRequestNum() > 0 {
		app.Error(c, 400, errors.New("交易已存在"), "交易已存在")
		return
	}

	//校验金额
	// 检查微信相关参数
	if !inData.Amount.GreaterThan(decimal.NewFromInt(0)) {
		app.Error(c, 400, errors.New("amount:金额必须大于0"), "amount:金额必须大于0")
		return

	}
	if inData.Amount.Round(2).String() != inData.Amount.String() {
		app.Error(c, 400, errors.New("total_fee:金额最多只能保留两位小数"), "total_fee:金额最多只能保留两位小数")
		return
	}

	//创建支付记录
	sqlData.ClientOpenID = inData.ClientOpenId
	sqlData.RequestID = inData.RequestId
	sqlData.CreatedAt = time.Now()
	sqlData.UpdatedAt = time.Now()
	sqlData.Amount = inData.Amount
	sqlData.OutTradeNo = strconv.FormatInt(inData.MerchantCardId, 10) + strconv.FormatInt(time.Now().UnixNano(), 10)
	sqlData.Status = 1 //未支付
	sqlData.MerchantCardID = inData.MerchantCardId
	sqlData.InvitationCode = inData.InvitationCode
	_, err = sqlData.Create()
	if err != nil {
		app.Error(c, 400, err, "创建支付失败")
		return
	}
	fmt.Println(sqlData.OutTradeNo)
	bm := make(gopay.BodyMap)
	bm.Set("nonce_str", common.GetRandomString(32))
	bm.Set("body", "商户卡")
	bm.Set("out_trade_no", sqlData.OutTradeNo)
	bm.Set("total_fee", inData.Amount.Mul(decimal.NewFromInt(100)).IntPart())
	bm.Set("spbill_create_ip", "127.0.0.1")
	bm.Set("notify_url", "https://shisanmiao.com/v1/client/pay/callback")
	bm.Set("device_info", "WEB")
	bm.Set("trade_type", "JSAPI")
	bm.Set("sign_type", wechat.SignType_MD5)
	bm.Set("openid", inData.ClientOpenId)

	client := NewWechatService()
	//请求支付下单，成功后得到结果
	wxResp, err := client.UnifiedOrder(c, bm)
	if err != nil {
		app.Error(c, 400, err, "下单失败")
		return
	}

	if wxResp.ReturnCode != "SUCCESS" {
		app.Error(c, 400, errors.New(wxResp.ReturnMsg), "下单失败")
		return
	}
	if wxResp.ResultCode != "SUCCESS" {
		app.Error(c, 400, errors.New(wxResp.ErrCode+"--"+wxResp.ErrCodeDes), "下单失败")
		return
	}

	timestamp := strconv.FormatInt(time.Now().Unix(), 10)
	pac := "prepay_id=" + wxResp.PrepayId
	paySign := wechat.GetMiniPaySign("wx25357518f710b8ce", wxResp.NonceStr, pac, wechat.SignType_MD5, timestamp, "1RKRJBVH4vaRrF0XPW9GX2M3ZSImukIz")

	outData.Timestamp = timestamp
	outData.NonceStr = wxResp.NonceStr
	outData.Package = pac
	outData.PaySign = paySign
	outData.SignType = wechat.SignType_MD5

	//merchant, count, err := sqlData.GetOpenIdList(pageSize, pageIndex)
	//if err != nil {
	//	app.Error(c, 500, err, err.Error())
	//	return
	//}
	app.OK(c, outData, app.Success)

}

func PayCashOut(c *gin.Context) {
	var inData models.PayCashOutRequest
	var merchantAccountSql shanghu.MerchantAccount
	var clientAccountSql shanghu.MerchantClientAccount
	var cashOut shanghu.CashOut
	var trans []models.TransferDetailList
	var transDetail models.TransferDetailList

	err := c.ShouldBindJSON(&inData)
	if err != nil {
		app.Error(c, 400, err, err.Error())
		return
	}
	if inData.Appid == "" { //appid 不能为空
		app.Error(c, 400, errors.New("Appid不能为空"), "Appid不能为空")
		return
	}

	if inData.Amount.Cmp(decimal.NewFromInt(500)) > 0 {
		app.Error(c, 400, errors.New("单笔金额不能大于500"), "单笔金额不能大于500")
		return
	}

	if inData.Amount.Cmp(decimal.NewFromInt(1)) < 0 {
		app.Error(c, 400, errors.New("单笔金额不能小于1"), "单笔金额不能大于1")
		return
	}

	//
	cashOut.OpenID = inData.OpenId
	cashOut.AppID = inData.Appid
	cashOut.Status = 1    //提现中
	status := []int{1, 3} //提现中、金额待扣减

	cashNum := cashOut.GetCashOutByStatusNum(status)
	if cashNum > 0 {
		app.Error(c, 400, errors.New("有一笔交易正在提现中"), "有一笔交易正在提现中")
		return
	}

	//校验金额是否够
	if inData.AccountType == "client" {
		clientAccountSql.ClientOpenID = inData.OpenId
		clientAccountInfo, err := clientAccountSql.GetClientAccount()
		if err != nil {
			app.Error(c, 400, err, err.Error())
			return
		}
		if inData.Amount.Cmp(clientAccountInfo.Amount) > 0 {
			app.Error(c, 400, errors.New("账号余额不够"), "账号余额不够")
			return
		}
		cashOut.Fee = inData.Amount.Mul(decimal.NewFromFloat32(0.1))
	} else if inData.AccountType == "merchant" {
		merchantAccountSql.MerchantOpenID = inData.OpenId
		merchantAccountInfo, err := merchantAccountSql.GetMerchantAccount()
		if err != nil {
			app.Error(c, 400, err, err.Error())
			return
		}
		if inData.Amount.Cmp(merchantAccountInfo.Amount) > 0 {
			app.Error(c, 400, errors.New("账号余额不够"), "账号余额不够")
			return
		}
		cashOut.Fee = decimal.NewFromInt(0)
	} else {
		app.Error(c, 400, errors.New("账户类型错误"), "账户类型错误")
		return
	}

	clientV3, err := NewWechatServiceV3(inData.Appid)
	if err != nil {
		app.Error(c, 400, err, err.Error())
		return
	}

	userName, err := clientV3.V3EncryptText(inData.UserName)
	if err != nil {
		app.Error(c, 400, err, err.Error())
		return
	}

	transDetail.OutDetailNo = common.GetRandomString(32)
	transDetail.TransferAmount = inData.Amount.Sub(cashOut.Fee).Mul(decimal.NewFromInt(100)).IntPart()
	transDetail.UserName = userName
	transDetail.Openid = inData.OpenId
	transDetail.TransferRemark = "提现"

	trans = append(trans, transDetail)

	partnerTradeNo := common.GetRandomString(32)
	var cashOutCreate shanghu.CashOut
	//创建提现记录
	cashOutCreate.AppID = inData.Appid
	cashOutCreate.Status = 1 //提现中
	cashOutCreate.OpenID = inData.OpenId
	cashOutCreate.Amount = inData.Amount
	cashOutCreate.CreatedAt = time.Now()
	cashOutCreate.UpdatedAt = time.Now()
	cashOutCreate.PartnerTradeNo = partnerTradeNo
	cashOutCreate.Fee = cashOut.Fee
	cashOutInfo, err := cashOutCreate.Create()
	if err != nil {
		app.Error(c, 400, err, err.Error())
		return
	}

	var bMap []gopay.BodyMap
	bm := make(gopay.BodyMap)

	bm.Set("appid", inData.Appid)
	bm.Set("out_batch_no", partnerTradeNo)
	bm.Set("batch_name", "体现")
	bm.Set("batch_remark", "提现")
	bm.Set("total_amount", inData.Amount.Sub(cashOut.Fee).Mul(decimal.NewFromInt(100)).IntPart())
	bm.Set("total_num", 1)
	bMap = append(bMap, structToMap(&transDetail))

	bm.Set("transfer_detail_list", bMap)
	bm.Set("transfer_scene_id", "1001")

	fmt.Println(bm.JsonBody())

	reply, err := clientV3.V3Transfer(c, bm)
	if err != nil {
		cashOut.ID = cashOutInfo.ID
		cashOut.FailRes = err.Error()
		cashOut.Status = 2 //提现失败
		cashOut.UpdateMerchantStatus()
		app.Error(c, 500, err, err.Error())
		return
	}

	if reply.Code != 0 {
		cashOut.ID = cashOutInfo.ID
		cashOut.FailRes = reply.Error
		cashOut.Status = 2 //提现失败
		cashOut.UpdateMerchantStatus()
		app.Error(c, 500, errors.New(reply.Error), reply.Error)
		return
	}

	cashOut.WxPartnerTradeNo = reply.Response.BatchId
	cashOut.PartnerTradeNo = reply.Response.OutBatchNo
	cashOut.UpdateCashOutWxBachNo()

	app.OK(c, nil, app.Success)

}

func PayCallBack(c *gin.Context) {
	var payLog shanghu.PayCallbackLog
	var payTrans shanghu.ClientPayTrans
	wxNotify, err := wechat.ParseNotifyToBodyMap(c.Request)
	if err != nil {
		c.XML(http.StatusOK, failResp)
		return
	}

	//通知回调log
	payLog.CallBackLog = wxNotify.JsonBody()
	payLog.ThirdTradeNo = wxNotify.Get("transaction_id")
	payLog.OutTradeNo = wxNotify.Get("out_trade_no")
	payLog.CreatedAt = time.Now()
	payLog.UpdatedAt = time.Now()

	_, err = payLog.Create()
	if err != nil {
		c.XML(http.StatusOK, failResp)
		return
	}

	if wxNotify.Get("return_code") != "SUCCESS" || wxNotify.Get("result_code") != "SUCCESS" {
		payLog.ErrLog = "微信返回错误：" + wxNotify.Get("return_code") + "--" + wxNotify.Get("result_code")
		payLog.UpdateMerchant()
		c.XML(http.StatusOK, failResp)
		return
	}

	//校验金额
	payTrans.OutTradeNo = wxNotify.Get("out_trade_no")
	payTransInfo, err := payTrans.GetPayTransByTradeNo()
	if err != nil {
		payLog.ErrLog = "查询交易信息错误：" + " err=" + err.Error()
		payLog.UpdateMerchant()
		c.XML(http.StatusOK, failResp)
		return
	}
	// 判断金额与支付流水是否一致
	totalFee, err := decimal.NewFromString(wxNotify.Get("total_fee"))
	if err != nil {
		payLog.ErrLog = "解析总金额报错：" + "err=" + err.Error()
		payLog.UpdateMerchant()
		c.XML(http.StatusOK, failResp)
		return
	}
	if !totalFee.Equal(payTransInfo.Amount.Mul(decimal.NewFromInt(100))) {
		payLog.ErrLog = "验证金额报错：total_fee=" + wxNotify.Get("total_fee") + " amount=" + payTransInfo.Amount.String()
		payLog.UpdateMerchant()
		c.XML(http.StatusOK, failResp)
		return
	}
	// 解析支付时间
	timeEnd, err := time.ParseInLocation("20060102150405", wxNotify.Get("time_end"), tools.TimeLocation)
	if err != nil {
		payLog.ErrLog = "付款时间解析出错：err=" + err.Error()
		payLog.UpdateMerchant()
		c.XML(http.StatusOK, failResp)
		return
	}

	payTrans.ThirdTradeNo = wxNotify.Get("transaction_id")
	payTrans.Status = 2 //支付成功
	payTrans.PayTime = timeEnd
	payTrans.AccountStatus = 1 //未分账

	err = payTrans.UpdatePayTransByTradeNo()
	if err != nil {
		payLog.ErrLog = "更新支付状态失败：err=" + err.Error()
		payLog.UpdateMerchant()
		c.XML(http.StatusOK, failResp)
		return
	}

	c.XML(http.StatusOK, successResp)

}

func NewWechatService() *wechat.Client {

	client := wechat.NewClient("wx25357518f710b8ce", "1501641641", "1RKRJBVH4vaRrF0XPW9GX2M3ZSImukIz", true)
	//设置国家
	client.SetCountry(wechat.China)

	return client
}

func NewWechatServiceAppid(appid string) *wechat.Client {

	client := wechat.NewClient(appid, "1501641641", "1RKRJBVH4vaRrF0XPW9GX2M3ZSImukIz", true)
	//设置国家
	client.SetCountry(wechat.China)

	return client
}

func NewWechatServiceV3(appid string) (*wechatV3.ClientV3, error) {

	key := `-----BEGIN PRIVATE KEY-----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-----END PRIVATE KEY-----`
	client, err := wechatV3.NewClientV3("1501641641", "219B3AF3B5F17D4C2F145EE318188708318DD7BD", "9x9ydkdk0nzsa4mr2ucq75grlvt9n8l3", key)
	if err != nil {
		return nil, err
	}

	// 启用自动同步返回验签，并定时更新微信平台API证书（开启自动验签时，无需单独设置微信平台API证书和序列号）
	err = client.AutoVerifySign()
	if err != nil {
		return nil, err
	}

	// 打开Debug开关，输出日志，默认是关闭的
	//client.DebugSwitch = gopay.DebugOn

	return client, nil
}
func structToMap(obj interface{}) gopay.BodyMap {
	result := make(gopay.BodyMap)
	value := reflect.ValueOf(obj).Elem() // 获取指针的值
	typ := value.Type()                  // 获取类型信息

	for i := 0; i < typ.NumField(); i++ {
		field := typ.Field(i)              // 获取字段信息
		tag := field.Tag.Get("json")       // 获取标签（如果有）
		if tag != "" && !field.Anonymous { // 只处理非匿名字段且有标签的情况
			key := field.Name // 默认使用字段名作为Key
			if tag != "-" {   // 若标签不等于-则使用标签作为Key
				key = tag
			}
			result[key] = value.Field(i).Interface() // 存入Map
		}
	}

	return result
}