fix(pkg/sensor): reduce interface functions for better error handling

cmd/temperature/read.go

@@ -6,12 +6,12 @@ import (
 	"log"
 	"os"
 
-	"github.com/go-flucky/flucky/pkg/storage"
-	"github.com/go-flucky/flucky/pkg/types"
-
 	"github.com/go-flucky/flucky/pkg/cli"
 	"github.com/go-flucky/flucky/pkg/config"
+	"github.com/go-flucky/flucky/pkg/rgbled"
 	"github.com/go-flucky/flucky/pkg/sensor"
+	"github.com/go-flucky/flucky/pkg/storage"
+	"github.com/go-flucky/flucky/pkg/types"
 	"github.com/spf13/cobra"
 )
 
@@ -39,36 +39,33 @@ var readTemperatureCmd = &cobra.Command{
 			log.Fatalln("No sensors found, specified or configured")
 		}
 
-		ctx := context.Background()
-		measuredValues, err := sensor.Read(ctx, sensors)
-		if err != nil {
+		rgbLEDs := cnf.GetRGBLEDs(config.ENABLED)
+		if err := rgbled.Run(rgbLEDs); err != nil {
 			log.Fatalln(err)
 		}
 
-		storage.Round(measuredValues, round)
+		measuredValues, err := sensor.Read(sensors, types.MeasuredValueTypeTemperature)
+		if err := rgbled.Run(rgbLEDs); err != nil {
+			log.Fatalln(err)
+		}
 
-		measuredValues = types.SelectMeasuredValues(types.MeasuredValueTypeTemperature, measuredValues)
-
-		// print temperatures on stdout
 		cli.PrintMeasuredValues(measuredValues, cnf, os.Stdout)
 
-		// Save the new measured values, if desired
 		if logs {
-
-			if compression {
-				measuredValues = storage.Compression(measuredValues)
-			}
-
 			storageEndpoint, err := cnf.GetStorageEndpointURL()
 			if err != nil {
 				log.Fatalln(err)
 			}
 
+			ctx := context.Background()
+
 			err = storage.Write(ctx, measuredValues, storageEndpoint)
 			if err != nil {
 				log.Fatalln(err)
 			}
 		}
+
+		rgbled.Off(rgbLEDs)
 	},
 }