Add more data about frequency

frequency.go

@@ -12,6 +12,19 @@ import (
 
 const SwissGridAPI = "https://www.swissgrid.ch/bin/services/apicache?path=/content/swissgrid/fr/home/operation/grid-data/current-data/jcr:content/parsys/livedatawidget_10292"
 
+var (
+	LastFreqPlan = 50.0
+	GridTz       *time.Location
+)
+
+func init() {
+	var err error
+	GridTz, err = time.LoadLocation("Europe/Zurich")
+	if err != nil {
+		panic(err)
+	}
+}
+
 type SwissGridItem struct {
 	Id           string `json:"id"`
 	Label        string `json:"label"`
@@ -67,30 +80,53 @@ func FetchFrequency() (*SwissGridData, error) {
 }
 
 func WriteFrequency(writer TICWriter, freq *SwissGridData) error {
+	points := map[string]Point{}
+	horodate := time.Now()
+
 	for _, i := range freq.Data.Table {
-		if i.Id == "FreqAct" {
+		if i.Id == "FreqPlan" {
 			f, err := strconv.ParseFloat(strings.Fields(i.Value)[0], 64)
 			if err != nil {
 				return err
 			}
 
-			point := Point{
+			if LastFreqPlan != f {
+				points["FREQPLAN"] = Point{
 					Data: []byte(fmt.Sprintf("%.0f", f*1000)),
 				}
+				LastFreqPlan = f
+			}
+		} else if i.Id == "FreqAct" {
+			f, err := strconv.ParseFloat(strings.Fields(i.Value)[0], 64)
+			if err != nil {
+				return err
+			}
 
-			err = writer.AddPoints(
-				map[string]Point{
-					"FREQ": point,
-				},
-				time.Now(),
-			)
+			points["FREQ"] = Point{
+				Data: []byte(fmt.Sprintf("%.0f", f*1000)),
+			}
+		} else if i.Id == "GridTimeDev" {
+			f, err := strconv.ParseFloat(strings.Fields(i.Value)[0], 64)
+			if err != nil {
+				return err
+			}
+
+			points["GRIDTIMEDEV"] = Point{
+				Data: []byte(fmt.Sprintf("%.0f", f*1000)),
+			}
+		} else if i.Id == "SampleTimestamp" {
+			var err error
+			horodate, err = time.ParseInLocation("02.01.2006 15:04:05", i.Value, GridTz)
+			if err != nil {
+				return err
+			}
+		}
+	}
+
+	err := writer.AddPoints(points, horodate)
 	if err != nil {
 		log.Println("Unable to write frequency point:", err)
 	}
 
-			break
-		}
-	}
-
 	return nil
 }

measurements.go

@@ -52,6 +52,9 @@ var (
 
 	MeasurementUnits = map[string]string{
 		"FREQ":        "mHz",
+		"FREQPLAN":    "mHz",
+		"GRIDTIMEDEV": "ms",
+
 		"EAST":   "Wh",
 		"EASF01": "Wh",
 		"EASF02": "Wh",