package hlog

import (
	"github.com/pkg/errors"
	"github.com/rs/zerolog"
)

// Level is an alias for zerolog.Level, representing the severity of a log message.
type Level = zerolog.Level

// LogLevel converts a string to a Level value.
//
// Valid level strings (case-sensitive):
//   - "trace": Most verbose, for very detailed debugging
//   - "debug": Detailed debugging information
//   - "info": General informational messages
//   - "warn": Warning messages for potentially harmful situations
//   - "error": Error messages for error events
//   - "fatal": Fatal messages that will exit the application
//   - "panic": Panic messages that will panic the application
//
// Returns an error if the provided string is not a valid log level.
func LogLevel(level string) (Level, error) {
	levels := map[string]zerolog.Level{
		"trace": zerolog.TraceLevel,
		"debug": zerolog.DebugLevel,
		"info":  zerolog.InfoLevel,
		"warn":  zerolog.WarnLevel,
		"error": zerolog.ErrorLevel,
		"fatal": zerolog.FatalLevel,
		"panic": zerolog.PanicLevel,
	}
	logLevel, valid := levels[level]
	if !valid {
		return 0, errors.New("Invalid log level specified.")
	}
	return logLevel, nil
}