changeAPIv1/cmd/converter/main.go

package main

import (
	"converter/internal/app"
	"converter/internal/config"
	"fmt"
	"log/slog"
	"os"
	"os/signal"
	"syscall"
)

const (
	envlocal = "local"
	envdev   = "dev"
	envprod  = "prod"
)

func main() {

	cfg := config.MustLoad()

	fmt.Println(cfg)

	log := setupLogger(cfg.Env)
	log.Info("starting application", slog.Any("cfg", cfg))
	applicaton := app.New(log, cfg.GRPC.Port)
	go applicaton.GRPCSrv.MustRun()

	stop := make(chan os.Signal, 1)
	signal.Notify(stop, syscall.SIGTERM, syscall.SIGINT)

	sign := <-stop
	log.Info("stoping application", slog.String("signal", sign.String()))
	applicaton.GRPCSrv.Stop()
	log.Info("application stopped")
}

func setupLogger(env string) *slog.Logger {
	var log *slog.Logger

	switch env {
	case envlocal:
		log = slog.New(
			slog.NewJSONHandler(os.Stdout, &slog.HandlerOptions{Level: slog.LevelInfo}),
		)
	case envdev:
		log = slog.New(
			slog.NewJSONHandler(os.Stdout, &slog.HandlerOptions{Level: slog.LevelDebug}),
		)
	case envprod:
		log = slog.New(
			slog.NewJSONHandler(os.Stdout, &slog.HandlerOptions{Level: slog.LevelInfo}),
		)
	}
	return log
}