package main

import (
	"context"
	"os"
	"os/signal"

	"gitea.libretechconsulting.com/rmcguire/go-app/pkg/app"
	grpcopts "gitea.libretechconsulting.com/rmcguire/go-app/pkg/srv/grpc/opts"
	httpopts "gitea.libretechconsulting.com/rmcguire/go-app/pkg/srv/http/opts"
	"golang.org/x/sys/unix"

	weatherpb "gitea.libretechconsulting.com/rmcguire/ambient-local-exporter/api/v1alpha1/weather"
	"gitea.libretechconsulting.com/rmcguire/ambient-local-exporter/pkg/ambient"
	"gitea.libretechconsulting.com/rmcguire/ambient-local-exporter/pkg/ambient/ambienthttp"
	"gitea.libretechconsulting.com/rmcguire/ambient-local-exporter/pkg/ambient/config"
	weathergrpc "gitea.libretechconsulting.com/rmcguire/ambient-local-exporter/pkg/weather/grpc"
)

const defaultMetricPrefix = "weather"

func main() {
	ctx, cncl := signal.NotifyContext(context.Background(), os.Kill, os.Interrupt, unix.SIGTERM)
	defer cncl()

	// Config type for app, which implements go-app/config.AppConfig
	awConfig := &config.AmbientLocalExporterConfig{
		MetricPrefix:    defaultMetricPrefix,
		WeatherStations: make([]config.WeatherStation, 0),
	}

	// Read config and environment, set up logging, load up
	// an appCtx, and prepare ambient weather local exporter
	ctx, awConfig = app.MustLoadConfigInto(ctx, awConfig)

	// Prepare the exporter
	aw := ambient.New(ctx, awConfig).Init()

	// Define and prepare the app
	awApp := app.App{
		AppContext: ctx,
		// HTTP Endpoints for Ambient Weather Stations
		HTTP: &httpopts.AppHTTP{
			Funcs: []httpopts.HTTPFunc{
				{
					Path:        "/weatherstation/updateweatherstation.php",
					HandlerFunc: aw.GetWundergroundHandlerFunc(ctx),
				},
				{
					Path:        "/data/report",
					HandlerFunc: aw.GetAWNHandlerFunc(ctx),
				},
			},
			CustomListener: ambienthttp.NewAWNMutatingListener(ctx,
				awConfig.HTTP.Listen), // Necessary to fix certain bad AWN firmware
			HealthChecks: []httpopts.HealthCheckFunc{
				// TODO: Implement
				func(ctx context.Context) error {
					return nil
				},
			},
		},
		// GRPC Service for retrieving current weather
		GRPC: &grpcopts.AppGRPC{
			Services: []*grpcopts.GRPCService{
				{
					Name:    "Weather Service",
					Type:    &weatherpb.AmbientLocalWeatherService_ServiceDesc,
					Service: weathergrpc.GRPCWeather{},
				},
			},
		},
	}

	// Run and wait
	awApp.MustRun()
	<-awApp.Done()
}