add timestamp to proto

pkg/weather/grpc/mapupdate.go

@@ -2,12 +2,16 @@ package grpc
 
 import (
 	"slices"
+	"time"
+
+	"google.golang.org/protobuf/types/known/timestamppb"
 
 	pb "gitea.libretechconsulting.com/rmcguire/ambient-local-exporter/api/v1alpha1/weather"
 	"gitea.libretechconsulting.com/rmcguire/ambient-local-exporter/pkg/util"
 	"gitea.libretechconsulting.com/rmcguire/ambient-local-exporter/pkg/weather"
 )
 
+// Converts a slice of weather.WeatherUpdate to proto structs
 func UpdatesToPbUpdates(u []*weather.WeatherUpdate) []*pb.WeatherUpdate {
 	updates := make([]*pb.WeatherUpdate, len(u))
 	for i, update := range u {
@@ -16,7 +20,16 @@ func UpdatesToPbUpdates(u []*weather.WeatherUpdate) []*pb.WeatherUpdate {
 	return updates
 }
 
+// Maps a weather.WeatherUpdate to the proto version.
+//
+// This should be auto-generated code, but as the proto should be
+// stable, it is probably not worth the effort.
 func UpdateToPbUpdate(u *weather.WeatherUpdate) *pb.WeatherUpdate {
+	if u.DateUTC == nil {
+		now := time.Now()
+		u.DateUTC = &now
+	}
+
 	return &pb.WeatherUpdate{
 		StationName:         u.StationConfig.Name,
 		StationType:         util.DerefStr(u.StationType),
@@ -45,6 +58,7 @@ func UpdateToPbUpdate(u *weather.WeatherUpdate) *pb.WeatherUpdate {
 		DewPointF:           u.DewPointF,
 		WindChillF:          u.WindChillF,
 		TempHumiditySensors: thSensorsToPbSensors(u.TempHumiditySensors),
+		UpdateTimestamp:     timestamppb.New(*u.DateUTC),
 	}
 }
 

pkg/weather/grpc/mapupdate_test.go

@@ -5,6 +5,7 @@ import (
 	"testing"
 	"time"
 
+	"google.golang.org/protobuf/types/known/timestamppb"
 	"k8s.io/utils/ptr"
 
 	pb "gitea.libretechconsulting.com/rmcguire/ambient-local-exporter/api/v1alpha1/weather"
@@ -12,8 +13,10 @@ import (
 	"gitea.libretechconsulting.com/rmcguire/ambient-local-exporter/pkg/weather"
 )
 
+var now = time.Now()
+
 var mockUpdate = &weather.WeatherUpdate{
-	DateUTC: &time.Time{},
+	DateUTC: &now,
 	StationConfig: &config.WeatherStation{
 		Name:      "50W",
 		Equipment: "WS-5000",
@@ -100,6 +103,7 @@ func TestUpdateToPbUpdate(t *testing.T) {
 						Humidity: nil,
 					},
 				},
+				UpdateTimestamp: timestamppb.New(now),
 			},
 		},
 	}