package customlogger

import (
	"log/slog"
	"os"
)

var LogLevels = map[string]slog.Level{
	"debug": slog.LevelDebug,
	"info":  slog.LevelInfo,
	"warn":  slog.LevelWarn,
	"error": slog.LevelError,
}
var Environment = map[string]string{
	"dev":  "development",
	"prod": "production",
}

func NewLogger(env string, lvl slog.Level) *slog.Logger {
	var logHandler slog.Handler

	err := os.MkdirAll("logs", os.ModePerm)
	if err != nil {
		panic("Failed to create log directory: " + err.Error())
	}

	file, err := os.OpenFile("logs/app.log", os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
	if err != nil {
		panic("Failed to open log file: " + err.Error())
	}

	switch env {
	case "development":
		logHandler = slog.NewTextHandler(file, &slog.HandlerOptions{
			Level: lvl,
		})
	default:
		logHandler = slog.NewJSONHandler(file, &slog.HandlerOptions{
			Level: lvl,
		})
	}

	logger := slog.New(logHandler).With(slog.Group(
		"service_info",
		slog.String("env", env),
	),
	)

	return logger
}