f

app/main/api/internal/service/yunyinSignPayService.go

@@ -683,3 +683,172 @@ func (y *YunYinSignPayService) QueryPayeeBill(ctx context.Context, sourceOrderCo
 		RefundAmount:   billItem.RefundAmount,
 	}, nil
 }
+
+// RefundPayeeBillRequest 退款请求
+type RefundPayeeBillRequest struct {
+	SourceOrderCode string  `json:"sourceOrderCode,omitempty"` // 来源订单号（与 participateId 二选一）
+	ParticipateId   int64   `json:"participateId,omitempty"`   // 参与方ID（与 sourceOrderCode 二选一）
+	RefundAmount    float64 `json:"refundAmount"`              // 退款金额（必填）
+	RefundReason    string  `json:"refundReason,omitempty"`    // 退款原因（可选）
+}
+
+// RefundPayeeBillResponse 退款响应
+type RefundPayeeBillResponse struct {
+	Code interface{} `json:"code"` // 返回码，可能是字符串"200"或数字200
+	Msg  string      `json:"msg"`  // 返回码的描述信息
+	Data interface{} `json:"data,omitempty"`
+}
+
+// GetCodeInt 获取 code 的 int 值
+func (r *RefundPayeeBillResponse) GetCodeInt() int {
+	switch v := r.Code.(type) {
+	case int:
+		return v
+	case float64:
+		return int(v)
+	case string:
+		if v == "200" {
+			return 200
+		}
+		return 0
+	default:
+		return 0
+	}
+}
+
+// RefundPayeeBill 发起退款
+func (y *YunYinSignPayService) RefundPayeeBill(ctx context.Context, sourceOrderCode string, participateId int64, refundAmount float64, refundReason string) error {
+	// 1. 获取token和操作ID（带缓存）
+	accessToken, err := y.GetAccessToken(ctx)
+	if err != nil {
+		return fmt.Errorf("获取云印签token失败: %v", err)
+	}
+
+	operationUserId, err := y.GetUserId(ctx, accessToken)
+	if err != nil {
+		return fmt.Errorf("获取云印签操作ID失败: %v", err)
+	}
+
+	// 2. 如果只提供了 sourceOrderCode，需要先查询收款单获取 participateId
+	if participateId == 0 && sourceOrderCode != "" {
+		// 查询收款单列表获取 participateId
+		reqBody := QueryPayeeBillRequest{
+			SourceOrderCode: sourceOrderCode,
+			ListPageNo:      1,
+			ListPageSize:    10,
+		}
+
+		jsonData, err := json.Marshal(reqBody)
+		if err != nil {
+			return fmt.Errorf("序列化查询请求失败: %v", err)
+		}
+
+		url := fmt.Sprintf("%s/signFlowBill/payeeBillList", y.config.ApiURL)
+		httpReq, err := http.NewRequestWithContext(ctx, "POST", url, bytes.NewReader(jsonData))
+		if err != nil {
+			return fmt.Errorf("创建查询请求失败: %v", err)
+		}
+
+		httpReq.Header.Set("Content-Type", "application/json")
+		httpReq.Header.Set("appId", y.config.AppID)
+		httpReq.Header.Set("accessToken", accessToken)
+		httpReq.Header.Set("userId", operationUserId)
+		httpReq.Header.Set("source", "pc")
+
+		resp, err := y.client.Do(httpReq)
+		if err != nil {
+			return fmt.Errorf("查询请求失败: %v", err)
+		}
+		defer resp.Body.Close()
+
+		body, err := io.ReadAll(resp.Body)
+		if err != nil {
+			return fmt.Errorf("读取查询响应失败: %v", err)
+		}
+
+		var queryResp QueryPayeeBillResponse
+		if err := json.Unmarshal(body, &queryResp); err != nil {
+			return fmt.Errorf("解析查询响应失败: %v, 响应内容: %s", err, string(body))
+		}
+
+		codeInt := queryResp.GetCodeInt()
+		if codeInt != 200 {
+			return fmt.Errorf("查询收款单失败: %s", queryResp.Msg)
+		}
+
+		if len(queryResp.Data) == 0 {
+			return fmt.Errorf("未找到匹配的收款单记录，订单号: %s", sourceOrderCode)
+		}
+
+		// 获取第一条记录的 participateId
+		billItem := queryResp.Data[0]
+		participateId = billItem.ParticipateID
+		logx.Infof("通过订单号查询到参与方ID: %d", participateId)
+	}
+
+	// 3. 验证参数
+	if participateId == 0 {
+		return fmt.Errorf("参与方ID不能为空，请提供 participateId 或 sourceOrderCode")
+	}
+
+	if refundAmount <= 0 {
+		return fmt.Errorf("退款金额必须大于0")
+	}
+
+	// 4. 构建退款请求
+	refundReq := RefundPayeeBillRequest{
+		RefundAmount: refundAmount,
+		RefundReason: refundReason,
+	}
+
+	// 优先使用 participateId
+	if participateId > 0 {
+		refundReq.ParticipateId = participateId
+	} else if sourceOrderCode != "" {
+		// 如果 participateId 仍然为0，使用 sourceOrderCode
+		refundReq.SourceOrderCode = sourceOrderCode
+	}
+
+	jsonData, err := json.Marshal(refundReq)
+	if err != nil {
+		return fmt.Errorf("序列化退款请求失败: %v", err)
+	}
+
+	// 5. 调用退款API
+	url := fmt.Sprintf("%s/signFlowBill/refund", y.config.ApiURL)
+	httpReq, err := http.NewRequestWithContext(ctx, "POST", url, bytes.NewReader(jsonData))
+	if err != nil {
+		return fmt.Errorf("创建退款请求失败: %v", err)
+	}
+
+	httpReq.Header.Set("Content-Type", "application/json")
+	httpReq.Header.Set("appId", y.config.AppID)
+	httpReq.Header.Set("accessToken", accessToken)
+	httpReq.Header.Set("userId", operationUserId)
+	httpReq.Header.Set("source", "pc")
+
+	resp, err := y.client.Do(httpReq)
+	if err != nil {
+		return fmt.Errorf("退款请求失败: %v", err)
+	}
+	defer resp.Body.Close()
+
+	body, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return fmt.Errorf("读取退款响应失败: %v", err)
+	}
+
+	var refundResp RefundPayeeBillResponse
+	if err := json.Unmarshal(body, &refundResp); err != nil {
+		return fmt.Errorf("解析退款响应失败: %v, 响应内容: %s", err, string(body))
+	}
+
+	// 6. 检查响应码
+	codeInt := refundResp.GetCodeInt()
+	if codeInt != 200 {
+		return fmt.Errorf("退款失败: %s", refundResp.Msg)
+	}
+
+	logx.Infof("云印签退款成功，参与方ID: %d, 退款金额: %.2f, 退款原因: %s", participateId, refundAmount, refundReason)
+	return nil
+}