Mercedes: Add preconditioning information

vehicle/mercedes/api.go

@@ -114,5 +114,15 @@ func (v *API) Status(vin string) (StatusResponse, error) {
 		}
 	}
 
+	// There are two attributes for the proconditioning status, precondNow and precondActive
+	if val, ok := message.Attributes["precondNow"]; ok {
+		res.Preconditioning.Active = val.GetBoolValue()
+	}
+	if !res.Preconditioning.Active {
+		if val, ok := message.Attributes["precondActive"]; ok {
+			res.Preconditioning.Active = val.GetBoolValue()
+		}
+	}
+
 	return res, err
 }

vehicle/mercedes/provider.go

@@ -64,6 +64,14 @@ func (v *Provider) Status() (api.ChargeStatus, error) {
 	return status, err
 }
 
+var _ api.VehicleClimater = (*Provider)(nil)
+
+// Climater implements the api.VehicleClimater interface
+func (v *Provider) Climater() (bool, error) {
+	res, err := v.dataG()
+	return res.Preconditioning.Active, err
+}
+
 var _ api.VehiclePosition = (*Provider)(nil)
 
 // Position implements the api.VehiclePosition interface

vehicle/mercedes/types.go

@@ -73,5 +73,9 @@ type StatusResponse struct {
 		Longitude float64
 		Latitude  float64
 	}
+	Preconditioning struct {
+		Active    bool
+		Timestamp time.Time
+	}
 	Timestamp time.Time
 }