Fix metric prefix

TODO.md

@@ -1,10 +1,12 @@
 # TODO
 - [ ] Configuration for app
+- [ ] Configurable metric prefix
 - [ ] Helm Chart
 - [ ] Update README
 - [ ] Add Grafana dashboard
 - [ ] Add device name field with ID/Key mappings
 - [ ] Add device type field with ID/Key mappings
+- [ ] Move EVERYTHING to pointers to support nil
 
 ## Done
 - [x] Consolidate battery status into one metric with device label

pkg/weather/metrics.go

@@ -43,6 +43,8 @@ type WeatherMetrics struct {
 	meter           metric.Meter
 }
 
+var MetricPrefix = "weather"
+
 func MustInitMetrics(appCtx context.Context) *WeatherMetrics {
 	wm := &WeatherMetrics{
 		appCtx: appCtx,
@@ -52,55 +54,55 @@ func MustInitMetrics(appCtx context.Context) *WeatherMetrics {
 	wm.meter = otel.GetMeter(appCtx, "weather", "metrics")
 
 	// Weather Metrics
-	wm.TempOutdoorF, _ = wm.meter.Float64Gauge("weather_temp_outdoor_f",
+	wm.TempOutdoorF, _ = wm.meter.Float64Gauge(MetricPrefix+"_temp_outdoor_f",
 		metric.WithDescription("Outdoor Temperature in Faherenheit"))
-	wm.TempIndoorF, _ = wm.meter.Float64Gauge("weather_temp_indoor_f",
+	wm.TempIndoorF, _ = wm.meter.Float64Gauge(MetricPrefix+"_temp_indoor_f",
 		metric.WithDescription("Indoor Temperature in Faherenheit"))
-	wm.HumidityOudoor, _ = wm.meter.Int64Gauge("weather_humidity_outdoor",
+	wm.HumidityOudoor, _ = wm.meter.Int64Gauge(MetricPrefix+"_humidity_outdoor",
 		metric.WithDescription("Outdoor Humidity %"))
-	wm.HumidityIndoor, _ = wm.meter.Int64Gauge("weather_humidity_indoor",
+	wm.HumidityIndoor, _ = wm.meter.Int64Gauge(MetricPrefix+"_humidity_indoor",
 		metric.WithDescription("Indoor Humidity %"))
-	wm.WindSpeedMPH, _ = wm.meter.Float64Gauge("weather_wind_speed_mph",
+	wm.WindSpeedMPH, _ = wm.meter.Float64Gauge(MetricPrefix+"_wind_speed_mph",
 		metric.WithDescription("Wind Speed in MPH"))
-	wm.WindGustMPH, _ = wm.meter.Float64Gauge("weather_wind_gust_mph",
+	wm.WindGustMPH, _ = wm.meter.Float64Gauge(MetricPrefix+"_wind_gust_mph",
 		metric.WithDescription("Wind Gust in MPH"))
-	wm.MaxDailyGust, _ = wm.meter.Float64Gauge("weather_max_daily_gust",
+	wm.MaxDailyGust, _ = wm.meter.Float64Gauge(MetricPrefix+"_max_daily_gust",
 		metric.WithDescription("Max Daily Wind Gust"))
-	wm.WindDir, _ = wm.meter.Int64Gauge("weather_wind_dir",
+	wm.WindDir, _ = wm.meter.Int64Gauge(MetricPrefix+"_wind_dir",
 		metric.WithDescription("Wind Direction in Degrees"))
-	wm.WindDirAvg10m, _ = wm.meter.Int64Gauge("weather_wind_dir_avg_10m",
+	wm.WindDirAvg10m, _ = wm.meter.Int64Gauge(MetricPrefix+"_wind_dir_avg_10m",
 		metric.WithDescription("Wind Direction 10m Average"))
-	wm.UV, _ = wm.meter.Int64Gauge("weather_uv",
+	wm.UV, _ = wm.meter.Int64Gauge(MetricPrefix+"_uv",
 		metric.WithDescription("UV Index"))
-	wm.SolarRadiation, _ = wm.meter.Float64Gauge("weather_solar_radiation",
+	wm.SolarRadiation, _ = wm.meter.Float64Gauge(MetricPrefix+"_solar_radiation",
 		metric.WithDescription("Solar Radiation in W/㎡"))
-	wm.HourlyRainIn, _ = wm.meter.Float64Gauge("weather_hourly_rain_in",
+	wm.HourlyRainIn, _ = wm.meter.Float64Gauge(MetricPrefix+"_hourly_rain_in",
 		metric.WithDescription("Hourly Rain in Inches"))
-	wm.EventRainIn, _ = wm.meter.Float64Gauge("weather_event_rain_in",
+	wm.EventRainIn, _ = wm.meter.Float64Gauge(MetricPrefix+"_event_rain_in",
 		metric.WithDescription("Event Rain in Inches"))
-	wm.DailyRainIn, _ = wm.meter.Float64Gauge("weather_daily_rain_in",
+	wm.DailyRainIn, _ = wm.meter.Float64Gauge(MetricPrefix+"_daily_rain_in",
 		metric.WithDescription("Daily Rain in Inches"))
-	wm.WeeklyRainIn, _ = wm.meter.Float64Gauge("weather_weekly_rain_in",
+	wm.WeeklyRainIn, _ = wm.meter.Float64Gauge(MetricPrefix+"_weekly_rain_in",
 		metric.WithDescription("Weekly Rain in Inches"))
-	wm.MonthlyRainIn, _ = wm.meter.Float64Gauge("weather_monthly_rain_in",
+	wm.MonthlyRainIn, _ = wm.meter.Float64Gauge(MetricPrefix+"_monthly_rain_in",
 		metric.WithDescription("Monthly Rain in Inches"))
-	wm.YearlyRainIn, _ = wm.meter.Float64Gauge("weather_yearly_rain_in",
+	wm.YearlyRainIn, _ = wm.meter.Float64Gauge(MetricPrefix+"_yearly_rain_in",
 		metric.WithDescription("Yearly Rain in Inches"))
-	wm.TotalRainIn, _ = wm.meter.Float64Gauge("weather_total_rain_in",
+	wm.TotalRainIn, _ = wm.meter.Float64Gauge(MetricPrefix+"_total_rain_in",
 		metric.WithDescription("Total Rain in Inches"))
-	wm.BatteryStatus, _ = wm.meter.Int64Gauge("battery_status",
+	wm.BatteryStatus, _ = wm.meter.Int64Gauge(MetricPrefix+"_battery_status",
 		metric.WithDescription("Per-component battery status"))
-	wm.BaromRelativeIn, _ = wm.meter.Float64Gauge("weather_barometric_pressure_relative_in",
+	wm.BaromRelativeIn, _ = wm.meter.Float64Gauge(MetricPrefix+"_barometric_pressure_relative_in",
 		metric.WithDescription("Relative Pressure in Inches of Mercury"))
-	wm.BaromAbsoluteIn, _ = wm.meter.Float64Gauge("weather_barometric_pressure_absolute_in",
+	wm.BaromAbsoluteIn, _ = wm.meter.Float64Gauge(MetricPrefix+"_barometric_pressure_absolute_in",
 		metric.WithDescription("Absolute Pressure in Inches of Mercury"))
-	wm.DewPointF, _ = wm.meter.Float64Gauge("weather_dew_point_f",
+	wm.DewPointF, _ = wm.meter.Float64Gauge(MetricPrefix+"_dew_point_f",
 		metric.WithDescription("Dew Point in Faherenheit"))
-	wm.WindChillF, _ = wm.meter.Float64Gauge("weather_wind_chill_f",
+	wm.WindChillF, _ = wm.meter.Float64Gauge(MetricPrefix+"_wind_chill_f",
 		metric.WithDescription("Wind Chill in Faherenheit"))
 
 	// Internal Telemetry
-	wm.UpdatesReceived, _ = wm.meter.Int64Counter("weather_updates_received",
+	wm.UpdatesReceived, _ = wm.meter.Int64Counter(MetricPrefix+"_updates_received",
 		metric.WithDescription("Metric Updates Processed by Exporter"))
 
 	return wm