fix(cmd): turn on the led light when a sensor is selected

cmd/humidity/read.go

@@ -6,6 +6,7 @@ import (
 	"os"
 
 	"github.com/go-flucky/flucky/pkg/logfile"
+	"github.com/go-flucky/flucky/pkg/rgbled"
 	"github.com/go-flucky/flucky/pkg/types/typeswitch"
 
 	"github.com/go-flucky/flucky/pkg/cli"
@@ -35,8 +36,14 @@ var readHumidityCmd = &cobra.Command{
 			sensors = cnf.GetHumiditySensorsByName(args)
 		}
 
-		ctx := context.Background()
+		if len(sensors) == 0 {
+			return
+		}
 
+		rgbLEDs := cnf.GetRGBLEDs(config.ENABLED)
+		rgbled.Run(rgbLEDs)
+
+		ctx := context.Background()
 		measuredValues, err := sensor.Read(ctx, sensors)
 		if err != nil {
 			log.Fatalln(err)
@@ -44,7 +51,6 @@ var readHumidityCmd = &cobra.Command{
 
 		measuredValues = typeswitch.HumidityValues(measuredValues)
 
-		// print humidities on stdout
 		cli.PrintMeasuredValues(measuredValues, cnf, os.Stdout)
 
 		if logs {
@@ -54,6 +60,8 @@ var readHumidityCmd = &cobra.Command{
 				log.Fatalln(err)
 			}
 		}
+
+		rgbled.Off(rgbLEDs)
 	},
 }