package ipp

import (
	"encoding/binary"
	"fmt"
	"io"
)

type resolution struct {
	name                string
	crossFeedResolution int32
	feedResolution      int32
	units               int8
}

func NewResolution() *resolution {
	r := new(resolution)
	return r
}

func (r *resolution) unmarshal(byteStream io.Reader) {
	var length uint16
	binary.Read(byteStream, binary.BigEndian, &length)
	attributeName := make([]byte, length)
	if length > 0 {
		binary.Read(byteStream, binary.BigEndian, attributeName)
	}
	r.name = string(attributeName)
	binary.Read(byteStream, binary.BigEndian, &length)
	if length != 9 {
		panic("Wrong length in resolution")
	}
	binary.Read(byteStream, binary.BigEndian, &r.crossFeedResolution)
	binary.Read(byteStream, binary.BigEndian, &r.feedResolution)
	binary.Read(byteStream, binary.BigEndian, &r.units)
}

func (r resolution) String() string {
	return fmt.Sprintf("%v:%v:%v", r.crossFeedResolution, r.feedResolution, r.units)
}

func (r *resolution) marshal() []byte {
	return []byte{}
}

func (r *resolution) valueTag() tag {
	return resolutionValueTag
}