package logger

import (
	"io"
	"log"
	"os"
	c "scripts/internal/config"

	"github.com/rs/zerolog"
)

const timeFormat = "2006-01-02 15:04:05"

var Log zerolog.Logger

func MustInit() {
	writers := make([]io.Writer, 0, 2)

	zerolog.TimeFieldFormat = timeFormat

	consoleWriter := zerolog.ConsoleWriter{Out: os.Stdout, TimeFormat: timeFormat}
	writers = append(writers, consoleWriter)

	if c.Conf.LogSettings.EnableFile {
		logFile, err := os.OpenFile(c.Conf.LogSettings.FileLocation, os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
		if err != nil {
			log.Fatal(err)
		}
		writers = append(writers, logFile)
	}

	multi := zerolog.MultiLevelWriter(writers...)
	zCtx := zerolog.New(multi).Level(detectedLogLevel(c.Conf.LogSettings.ConsoleLevel)).With().Timestamp()
	if c.Conf.LogSettings.EnableCaller {
		zCtx = zCtx.Caller()
	}
	
	Log = zCtx.Logger()
}

func detectedLogLevel(level string) zerolog.Level {
	switch level {
	case "TRACE":
		return zerolog.TraceLevel
	case "DEBUG":
		return zerolog.DebugLevel
	case "WARN":
		return zerolog.WarnLevel
	case "INFO":
		return zerolog.InfoLevel
	default:
		return zerolog.InfoLevel
	}
}