package logger

import (
	"os"
	"sync"

	"github.com/gabehf/kanpeki/internal/cfg"
	"github.com/rs/zerolog"
)

var once sync.Once

var log zerolog.Logger

func Get(cfg *cfg.Config) zerolog.Logger {
	once.Do(func() {
		zerolog.TimeFieldFormat = zerolog.TimeFormatUnixMs

		logLevel := cfg.LogLevel

		log = zerolog.New(os.Stdout).
			Level(zerolog.Level(logLevel)).
			With().
			Timestamp().
			Logger()

		if os.Getenv("LOG_LEVEL") == "" {
			log.Info().Msg("environment variable LOG_LEVEL unset, using default value 0 (debug)")
		}
	})

	return log
}