package syslog

import (
	"go.opentelemetry.io/otel/attribute"
)

type SyslogLevel uint8

type IntoSyslogLevel interface {
	IntoSyslogLevel() SyslogLevel
}

const (
	// System is unusable
	EMERG SyslogLevel = iota
	// Immediate action is needed
	ALERT
	// Critical condition exists
	CRIT
	// An error condition has occured
	ERR
	// A suspicious behaviour has been observed
	WARNING
	// Significant but acceptable event has occured
	NOTICE
	// Informational details
	INFO
	// Data useful during debugging
	DEBUG
)

func (l SyslogLevel) String() string {
	switch l {
	case EMERG:
		return "EMERG"
	case ALERT:
		return "ALERT"
	case CRIT:
		return "CRIT"
	case ERR:
		return "ERR"
	case WARNING:
		return "WARN"
	case NOTICE:
		return "NOTICE"
	case INFO:
		return "INFO"
	case DEBUG:
		return "DEBUG"
	default:
		return "CRIT"
	}
}

func LevelFromString(level string) SyslogLevel {
	switch level {
	case "EMERG":
		return EMERG
	case "ALERT":
		return ALERT
	case "CRIT":
		return CRIT
	case "ERR":
		return ERR
	case "WARN":
		return WARNING
	case "NOTICE":
		return NOTICE
	case "INFO":
		return INFO
	case "DEBUG":
		return DEBUG
	default:
		return CRIT
	}
}

func (lvl SyslogLevel) IntoTraceAttribute() attribute.KeyValue {
	return attribute.String("level", lvl.String())
}

func (lvl SyslogLevel) IntoSyslogLevel() SyslogLevel {
	return lvl
}