package internal

import (
	"os"

	"github.com/rs/zerolog"
	"github.com/rs/zerolog/log"
)

func EnvOrExit(key string) string {
	value := os.Getenv(key)
	if value == "" {
		log.Fatal().Msgf("Required env. variable '%s' is empty or missing", key)
		os.Exit(1)
	}
	log.Debug().Msgf("Read env: %s='%s'", key, value)
	return value
}

func InitLogger() {
	logLevel := os.Getenv("LOG_LEVEL")
	level, err := zerolog.ParseLevel(logLevel)
	if err != nil {
		// Default to INFO
		level = zerolog.InfoLevel
	}
	zerolog.SetGlobalLevel(level)

	if os.Getenv("ENV") == "development" {
		log.Logger = log.Output(zerolog.ConsoleWriter{Out: os.Stderr})
	} else {
		log.Logger = log.Output(os.Stderr) // JSON to stdout/stderr
	}

	log.Debug().Msg("Logger initialized")
}