ambient-local-exporter/pkg/provider/wunderground/provider.go

package wunderground

import (
	"context"
	"net/http"
	"net/url"
	"time"

	"github.com/gorilla/schema"

	"gitea.libretechconsulting.com/rmcguire/ambient-weather-local-exporter/pkg/weather"
)

type WUProvider struct{}

const (
	providerName = "weatherunderground"
	wuURL        = "http://rtupdate.wunderground.com/weatherstation/updateweatherstation.php"
)

func (wu *WUProvider) Name() string {
	return providerName
}

// Takes an inbound request from the ambient device and maps
// to a stable struct for weather updates
func (wu *WUProvider) ReqToWeather(_ context.Context, r *http.Request) (
	*weather.WeatherUpdate, error,
) {
	wuUpdate, err := UnmarshalQueryParams(r.URL.Query())
	if err != nil {
		return nil, err
	}

	return MapWUUpdate(wuUpdate), nil
}

func (wu *WUProvider) ProxyReq(ctx context.Context, update *weather.WeatherUpdate) error {
	// tracer := otel.GetTracer(ctx, "wuProvider", "proxyReq")
	// ctx, span := tracer.Start(ctx, "proxyToWunderground")
	// defer span.End()
	//
	// resp, err := resty.New().R().
	// 	SetContext(ctx).
	// 	SetQueryParamsFromValues(r.URL.Query()).
	// 	Get(wuURL)
	// if err != nil {
	// 	span.SetStatus(codes.Error, err.Error())
	// 	span.RecordError(err)
	// }
	//
	// span.SetAttributes(
	// 	attribute.Int("statusCode", resp.StatusCode()),
	// 	attribute.String("body", string(resp.Body())),
	// )
	//
	// return err
	return nil
}

func MapWUUpdate(wuUpdate *WundergroundUpdate) *weather.WeatherUpdate {
	updateTime := time.Now()

	if wuUpdate.DateUTC != nil {
		ut, err := time.Parse(time.DateTime, *wuUpdate.DateUTC)
		if err == nil {
			updateTime = ut
		}
	}

	credentials := make(map[string]string)
	if wuUpdate.ID != nil && wuUpdate.Password != nil {
		credentials["ID"] = *wuUpdate.ID
		credentials["Password"] = *wuUpdate.Password
	}

	return &weather.WeatherUpdate{
		DateUTC:                   &updateTime,
		StationID:                 wuUpdate.ID,
		StationType:               wuUpdate.SoftwareType,
		TempOutdoorF:              wuUpdate.Tempf,
		HumidityOudoor:            wuUpdate.Humidity,
		WindSpeedMPH:              wuUpdate.WindGustMPH,
		WindGustMPH:               wuUpdate.WindGustMPH,
		WindDir:                   wuUpdate.WindDir,
		UV:                        wuUpdate.UV,
		SolarRadiation:            wuUpdate.SolarRadiation,
		HourlyRainIn:              wuUpdate.RainIn,
		DailyRainIn:               wuUpdate.DailyRainIn,
		WeeklyRainIn:              wuUpdate.WeeklyRainIn,
		MonthlyRainIn:             wuUpdate.MonthlyRainIn,
		YearlyRainIn:              wuUpdate.YearlyRainIn,
		TempIndoorF:               wuUpdate.IndoorTempF,
		HumidityIndoor:            wuUpdate.IndoorHumidity,
		BaromRelativeIn:           wuUpdate.BaromIn,
		WeatherServiceCredentials: credentials,
	}
}

func UnmarshalQueryParams(query url.Values) (*WundergroundUpdate, error) {
	update := new(WundergroundUpdate)

	if err := schema.NewDecoder().Decode(update, query); err != nil {
		return nil, err
	}

	return update, nil
}