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package alipay
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import (
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"errors"
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"fmt"
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alipay2 "git.oa00.com/go/alipay"
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"github.com/smartwalle/alipay/v3"
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"io/ioutil"
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"log"
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"net/http"
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"net/url"
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"recook/internal/v2/logic/pay"
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"recook/internal/v2/model/recook/after"
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"strings"
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"time"
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"github.com/jinzhu/gorm"
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"github.com/shopspring/decimal"
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)
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const (
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AppID = "2021003107650938"
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RefundURL = "https://openapi.alipay.com/gateway.do" // 退款
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)
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type RefundPublicParam struct {
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AppID string `json:"app_id"` // 支付宝分配给开发者的应用ID
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Method string `json:"method"` // 接口名称
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Charset string `json:"charset"` // 请求使用的编码格式，如utf-8
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SignType string `json:"sign_type"` // 商户生成签名字符串所使用的签名算法类型，目前支持RSA2和RSA，推荐使用RSA2
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Sign string `json:"sign"` // 商户请求参数的签名串
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Timestamp string `json:"timestamp"` // 发送请求的时间，格式"yyyy-MM-dd HH:mm:ss"
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Version string `json:"version"` // 调用的接口版本，固定为：1.0
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BizContent string `json:"biz_content"`
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}
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func newPublicParam(d *RefundDetailParam) RefundPublicParam {
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ts := time.Now().Format("2006-01-02 15:04:05")
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biz, _ := json.Marshal(d)
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return RefundPublicParam{
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AppID: AppID,
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Method: "alipay.trade.refund",
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Charset: "utf-8",
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SignType: "RSA2",
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Version: "1.0",
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Timestamp: ts,
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BizContent: string(biz),
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}
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}
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func (r *RefundPublicParam) generateRequestParam() string {
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r.Sign = generateSign(r)
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m := struct2MapWhenAlipay(r)
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p := url.Values{}
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for k, v := range m {
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if len(v) > 0 {
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p.Add(k, v)
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}
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}
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return p.Encode()
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}
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type RefundDetailParam struct {
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OutTradeNo string `json:"out_trade_no"`
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RefundAmount string `json:"refund_amount"`
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OutRequestNo string `json:"out_request_no"`
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}
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type RefundResult struct {
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Response struct {
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Code string `json:"code"`
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} `json:"alipay_trade_refund_response"`
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Sign string `json:"sign"`
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}
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func Refund(tx *gorm.DB, asGoods *after.RecookAfterSalesGoodsModel) error {
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//这边判断是否有金额
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fmt.Println("退款金额:", asGoods.RefundAmount.Truncate(2).String(), "========")
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if asGoods.RefundAmount.GreaterThan(decimal.NewFromFloat(0.0)) {
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param := alipay.TradeRefund{
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OutTradeNo: asGoods.TradeNo,
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RefundAmount: asGoods.RefundAmount.Truncate(2).String(),
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OutRequestNo: asGoods.RefundNo,
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}
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refund, _ := alipay2.Alipay.TradeRefund(param)
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if !refund.Content.Code.IsSuccess() {
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return errors.New("支付宝退款结果不对")
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}
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//detailParam := RefundDetailParam{
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// OutTradeNo: asGoods.TradeNo,
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// RefundAmount: asGoods.RefundAmount.Truncate(2).String(),
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// OutRequestNo: asGoods.RefundNo,
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//}
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//
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//pub := newPublicParam(&detailParam)
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//if err := RequestOrderRefund(&pub); err != nil {
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// return err
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//}
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}
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return pay.SyncRefundSuccessCallback(tx, asGoods)
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}
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func RequestOrderRefund(param *RefundPublicParam) error {
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client := &http.Client{}
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request, err := http.NewRequest("POST", RefundURL, strings.NewReader(param.generateRequestParam()))
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if err != nil {
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return err
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}
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request.Header.Set("Content-Type", "application/x-www-form-urlencoded;charset=utf-8")
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response, err := client.Do(request)
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if err != nil {
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return err
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}
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defer func() { _ = response.Body.Close() }()
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result, err := ioutil.ReadAll(response.Body)
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if err != nil {
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return err
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}
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fmt.Println("===============================")
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fmt.Println(string(result))
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var r RefundResult
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err = json.Unmarshal(result, &r)
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if err != nil {
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return err
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}
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if r.Response.Code != "10000" {
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log.Println(r)
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return errors.New("支付宝退款请求结果不对")
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}
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return nil
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}
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