package dhcp

import (
	"errors"
	"io"
)

type OptionTag uint8

type Option func(req *BootRequest, r io.Reader) error

const (
	OptionTagPadding              OptionTag = 0
	OptionTagHostName                       = 12
	OptionTagMessageType                    = 53
	OptionTagParameterRequestList           = 55
	OptionTagEnd                            = 255
)

var optionRegistry = map[OptionTag]Option{
	OptionTagPadding:              OptionTag,
	OptionTagHostName:             OptionHostName,
	OptionTagMessageType:          OptionMessageType,
	OptionTagParameterRequestList: OptionParameterRequestList,
	OptionTagEnd:                  OptionEnd,
}

func OptionPad(req *BootRequest, r io.Reader) error {
	return nil
}

func OptionHostName(req *BootRequest, r io.Reader) error {
	return errors.New("dhcp: option not implemented yet")
}

func OptionMessageType(req *BootRequest, r io.Reader) error {
	return errors.New("dhcp: option not implemented yet")
}

func OptionParameterRequestList(req *BootRequest, r io.Reader) error {
	return errors.New("dhcp: option not implemented yet")
}

func OptionEnd(req *BootRequest, r io.Reader) error {
	return errors.New("dhcp: option not implemented yet")
}