package log

import (
	"flag"
	"log/slog"
	"os"
)

func Logger() {
	// Get logger arguments
	var loglevelStr string
	flag.StringVar(&loglevelStr, "loglevel", "ERROR", "set log level")
	flag.Parse()

	loglevel := new(slog.LevelVar)
	if loglevelStr == "DEBUG" {
		loglevel.Set(slog.LevelDebug)
	} else if loglevelStr == "INFO" {
		loglevel.Set(slog.LevelInfo)
	} else if loglevelStr == "WARN" {
		loglevel.Set(slog.LevelWarn)
	} else {
		loglevel.Set(slog.LevelError)
	}
	// Start logger
	logger := slog.New(slog.NewJSONHandler(os.Stdout, &slog.HandlerOptions{
		Level: loglevel,
	}))
	slog.SetDefault(logger)
	slog.Debug("Logging started", "level", loglevel)
}