ambient-local-exporter/pkg/weather/metrics.go

package weather

import (
	"context"

	"gitea.libretechconsulting.com/rmcguire/go-app/pkg/config"
	"go.opentelemetry.io/otel/attribute"
	"go.opentelemetry.io/otel/metric"
	semconv "go.opentelemetry.io/otel/semconv/v1.26.0"
)

var MetricPrefix = "weather"

type WeatherMetrics struct {
	// Weather Metrics
	TempOutdoorF    metric.Float64Gauge
	TempIndoorF     metric.Float64Gauge
	HumidityOudoor  metric.Int64Gauge
	HumidityIndoor  metric.Int64Gauge
	WindSpeedMPH    metric.Float64Gauge
	WindGustMPH     metric.Float64Gauge
	MaxDailyGust    metric.Float64Gauge
	WindDir         metric.Int64Gauge
	WindDirAvg10m   metric.Int64Gauge
	UV              metric.Int64Gauge
	SolarRadiation  metric.Float64Gauge
	HourlyRainIn    metric.Float64Gauge
	EventRainIn     metric.Float64Gauge
	DailyRainIn     metric.Float64Gauge
	WeeklyRainIn    metric.Float64Gauge
	MonthlyRainIn   metric.Float64Gauge
	YearlyRainIn    metric.Float64Gauge
	TotalRainIn     metric.Float64Gauge
	BatteryStatus   metric.Int64Gauge
	BaromRelativeIn metric.Float64Gauge
	BaromAbsoluteIn metric.Float64Gauge
	DewPointF       metric.Float64Gauge
	WindChillF      metric.Float64Gauge

	// Temp and Humidity Sensors
	SensorTempF    metric.Float64Gauge
	SensorHumidity metric.Int64Gauge

	// Internal Telemetry
	UpdatesReceived metric.Int64Counter
	appCtx          context.Context
	cfg             *config.AppConfig
	meter           metric.Meter
	recorder        *MetricRecorder
}

func (wm *WeatherMetrics) Update(u *WeatherUpdate) {
	attributes := wm.GetAttributes(u)

	wm.recorder.Record(&RecordOpts{Float64Gauge: wm.TempOutdoorF, FloatVal: u.TempOutdoorF, Field: FieldTempOutdoorF, Attributes: attributes, Station: u.StationConfig})
	wm.recorder.Record(&RecordOpts{Float64Gauge: wm.TempIndoorF, FloatVal: u.TempIndoorF, Field: FieldTempIndoorF, Attributes: attributes, Station: u.StationConfig})
	wm.recorder.Record(&RecordOpts{Int64Gauge: wm.HumidityOudoor, IntVal: u.HumidityOudoor, Field: FieldHumidityOudoor, Attributes: attributes, Station: u.StationConfig})
	wm.recorder.Record(&RecordOpts{Int64Gauge: wm.HumidityIndoor, IntVal: u.HumidityIndoor, Field: FieldHumidityIndoor, Attributes: attributes, Station: u.StationConfig})
	wm.recorder.Record(&RecordOpts{Float64Gauge: wm.WindSpeedMPH, FloatVal: u.WindSpeedMPH, Field: FieldWindSpeedMPH, Attributes: attributes, Station: u.StationConfig})
	wm.recorder.Record(&RecordOpts{Float64Gauge: wm.WindGustMPH, FloatVal: u.WindGustMPH, Field: FieldWindGustMPH, Attributes: attributes, Station: u.StationConfig})
	wm.recorder.Record(&RecordOpts{Float64Gauge: wm.MaxDailyGust, FloatVal: u.MaxDailyGust, Field: FieldMaxDailyGust, Attributes: attributes, Station: u.StationConfig})
	wm.recorder.Record(&RecordOpts{Int64Gauge: wm.WindDir, IntVal: u.WindDir, Field: FieldWindDir, Attributes: attributes, Station: u.StationConfig})
	wm.recorder.Record(&RecordOpts{Int64Gauge: wm.WindDirAvg10m, IntVal: u.WindDirAvg10m, Field: FieldWindDirAvg10m, Attributes: attributes, Station: u.StationConfig})
	wm.recorder.Record(&RecordOpts{Int64Gauge: wm.UV, IntVal: u.UV, Field: FieldUV, Attributes: attributes, Station: u.StationConfig})
	wm.recorder.Record(&RecordOpts{Float64Gauge: wm.SolarRadiation, FloatVal: u.SolarRadiation, Field: FieldSolarRadiation, Attributes: attributes, Station: u.StationConfig})
	wm.recorder.Record(&RecordOpts{Float64Gauge: wm.HourlyRainIn, FloatVal: u.HourlyRainIn, Field: FieldHourlyRainIn, Attributes: attributes, Station: u.StationConfig})
	wm.recorder.Record(&RecordOpts{Float64Gauge: wm.EventRainIn, FloatVal: u.EventRainIn, Field: FieldEventRainIn, Attributes: attributes, Station: u.StationConfig})
	wm.recorder.Record(&RecordOpts{Float64Gauge: wm.DailyRainIn, FloatVal: u.DailyRainIn, Field: FieldDailyRainIn, Attributes: attributes, Station: u.StationConfig})
	wm.recorder.Record(&RecordOpts{Float64Gauge: wm.WeeklyRainIn, FloatVal: u.WeeklyRainIn, Field: FieldWeeklyRainIn, Attributes: attributes, Station: u.StationConfig})
	wm.recorder.Record(&RecordOpts{Float64Gauge: wm.MonthlyRainIn, FloatVal: u.MonthlyRainIn, Field: FieldMonthlyRainIn, Attributes: attributes, Station: u.StationConfig})
	wm.recorder.Record(&RecordOpts{Float64Gauge: wm.YearlyRainIn, FloatVal: u.YearlyRainIn, Field: FieldYearlyRainIn, Attributes: attributes, Station: u.StationConfig})
	wm.recorder.Record(&RecordOpts{Float64Gauge: wm.TotalRainIn, FloatVal: u.TotalRainIn, Field: FieldTotalRainIn, Attributes: attributes, Station: u.StationConfig})
	wm.recorder.Record(&RecordOpts{Float64Gauge: wm.BaromRelativeIn, FloatVal: u.BaromRelativeIn, Field: FieldBaromRelativeIn, Attributes: attributes, Station: u.StationConfig})
	wm.recorder.Record(&RecordOpts{Float64Gauge: wm.BaromAbsoluteIn, FloatVal: u.BaromAbsoluteIn, Field: FieldBaromAbsoluteIn, Attributes: attributes, Station: u.StationConfig})
	wm.recorder.Record(&RecordOpts{Float64Gauge: wm.DewPointF, FloatVal: u.DewPointF, Field: FieldDewPointF, Attributes: attributes, Station: u.StationConfig})
	wm.recorder.Record(&RecordOpts{Float64Gauge: wm.WindChillF, FloatVal: u.WindChillF, Field: FieldWindChillF, Attributes: attributes, Station: u.StationConfig})

	wm.RecordBatteries(u, attributes)
	wm.RecordTempHumiditySensors(u, attributes)

	wm.UpdatesReceived.Add(wm.appCtx, 1)
}

func (wm *WeatherMetrics) RecordBatteries(u *WeatherUpdate, attr []attribute.KeyValue) {
	for _, battery := range u.Batteries {
		batAttr := attr
		batAttr = append(batAttr, attribute.String("component", battery.Component))

		wm.recorder.Record(&RecordOpts{
			Int64Gauge: wm.BatteryStatus,
			IntVal:     battery.Status,
			Field:      FieldBatteries,
			Attributes: batAttr,
			Station:    u.StationConfig,
		})
	}
}

func (wm *WeatherMetrics) RecordTempHumiditySensors(u *WeatherUpdate, attr []attribute.KeyValue) {
	if u == nil || u.TempHumiditySensors == nil {
		return
	}

	for _, sensor := range u.TempHumiditySensors {
		sensorAttr := attr
		sensorAttr = append(sensorAttr, attribute.String("sensorName", sensor.Name))

		wm.recorder.Record(&RecordOpts{
			Float64Gauge: wm.SensorTempF,
			FloatVal:     sensor.TempF,
			Field:        FieldSensorTempF,
			Attributes:   sensorAttr,
			Station:      u.StationConfig,
		})
		wm.recorder.Record(&RecordOpts{
			Int64Gauge: wm.SensorHumidity,
			IntVal:     sensor.Humidity,
			Field:      FieldSensorHumidity,
			Attributes: sensorAttr,
			Station:    u.StationConfig,
		})
	}
}

func (wm *WeatherMetrics) GetAttributes(u *WeatherUpdate) []attribute.KeyValue {
	attributes := []attribute.KeyValue{
		semconv.ServiceVersion(wm.cfg.Version),
		semconv.ServiceName(wm.cfg.Name),
		semconv.DeploymentEnvironment(wm.cfg.Environment),
	}
	if u.StationType != nil {
		attributes = append(attributes,
			attribute.String("station_type", *u.StationType))
	}
	if u.StationConfig != nil {
		if u.StationConfig.Name != "" {
			attributes = append(attributes,
				attribute.String("station_name", u.StationConfig.Name))
		}
		if u.StationConfig.Equipment != "" {
			attributes = append(attributes,
				attribute.String("station_equipment", u.StationConfig.Equipment))
		}
	}

	return attributes
}