package ipp

import (
	"io"
)

type naturalLanguage struct {
	name  string
	value string
}

func NewNaturalLanguage(name, value string) *naturalLanguage {
	c := new(naturalLanguage)
	c.name = name
	c.value = value
	return c
}

func (c naturalLanguage) Name() string {
	return c.name
}

func (c naturalLanguage) String() string {
	return c.name + ":" + c.value
}

func (c *naturalLanguage) valueTag() tag {
	return naturalLanguageValueTag
}

func (c *naturalLanguage) unmarshal(byteStream io.Reader) {
	c.name, c.value = unmarshalSingleValue(byteStream)
}

func (c *naturalLanguage) marshal() []byte {
	l := 5 + len(c.name) + len(c.value)
	b := make([]byte, l, l)
	b[0] = byte(naturalLanguageValueTag)
	marshalNameValue(c.name, c.value, b[1:])
	return b
}

func (c *naturalLanguage) size() int {
	l := 1 + 4 // The attribute tag + 2 lengths
	l += len(c.name)
	l += len(c.value)
	return l
}