Improve controlbox cmd

Add handling for reacting to the write limit response

cmd/controlbox/main.go

@@ -14,6 +14,7 @@ import (
 	"time"
 
 	"github.com/enbility/eebus-go/api"
+	"github.com/enbility/eebus-go/features/client"
 	"github.com/enbility/eebus-go/service"
 	ucapi "github.com/enbility/eebus-go/usecases/api"
 	"github.com/enbility/eebus-go/usecases/eg/lpc"
@@ -129,6 +130,26 @@ func (h *controlbox) RemoteSKIConnected(service api.ServiceInterface, ski string
 				continue
 			}
 
+			// add a callback to the result
+			if lc, err := client.NewLoadControl(h.uclpc.LocalEntity, entity); err == nil {
+				err := lc.AddResponseCallback(*msgCounter, func(msg spineapi.ResponseMessage) {
+					// the response has to be of model.ResultDataType
+					response, ok := msg.Data.(*model.ResultDataType)
+					if !ok || response.ErrorNumber == nil {
+						return
+					}
+
+					if *response.ErrorNumber == model.ErrorNumberTypeNoError {
+						fmt.Println("Limit accepted.")
+					} else {
+						fmt.Println("Limit rejected. Code", response.ErrorNumber, "Description", response.Description)
+					}
+				})
+				if err != nil {
+					fmt.Println("Failed to add callback", err)
+				}
+			}
+
 			fmt.Println("Sent limit to", ski, "with msgCounter", msgCounter)
 		}
 	})