- purchase platform, cancel waybill added.

business/controller/dada/waybill.go

@@ -57,7 +57,7 @@ func (c *WaybillController) callbackMsg2Waybill(msg *dadaapi.CallbackMsg) (retVa
 	return retVal
 }
 
-//
+// DeliveryPlatformHandler
 func (c *WaybillController) CreateWaybill(order *model.GoodsOrder) (err error) {
 	billParams := &dadaapi.OperateOrderRequiredParams{
 		ShopNo:          utils.Int2Str(order.StoreID), // 当前达达的门店号与京西是一样的
@@ -81,5 +81,15 @@ func (c *WaybillController) CreateWaybill(order *model.GoodsOrder) (err error) {
 }
 
 func (c *WaybillController) CancelWaybill(bill *model.Waybill) (err error) {
-	return nil
+	reasonID := dadaapi.ReasonIDOther
+	reasonMsg := "other reason"
+	if bill.Status < model.WaybillStatusAccepted {
+		reasonID = dadaapi.ReasonIDNobodyAccept
+		reasonMsg = "ReasonIDNobodyAccept"
+	} else if bill.Status < model.WaybillStatusCourierArrived {
+		reasonID = dadaapi.ReasonIDNobodyPickup
+		reasonMsg = "ReasonIDNobodyPickup"
+	}
+	_, err = api.DadaAPI.CancelOrder(bill.VendorWaybillID, reasonID, reasonMsg)
+	return err
 }