package ipp

import (
	"io"
)

// URIValue represents a ipp URI value attribute
type URIValue struct {
	name  string
	value string
}

// NewURIValue creates a new URIValue attribute
func NewURIValue(name, value string) *URIValue {
	u := new(URIValue)
	u.name = name
	u.value = value
	return u
}

// Name returns the name of the attribute
func (u URIValue) Name() string {
	return u.name
}

// Value returns the value of the attribute
func (u URIValue) Value() string {
	return u.value
}

func (u URIValue) String() string {
	return u.name + ":" + u.value
}

func (u *URIValue) valueTag() tag {
	return uriValueTag
}

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

func (u *URIValue) marshal() []byte {
	res := make([]byte, u.size())
	res[0] = byte(uriValueTag)
	marshalNameValue(u.name, u.value, res[1:])
	return res
}
func (u *URIValue) size() int {
	l := 1 + 4 // The attribute tag + 2 lengths
	l += len(u.name)
	l += len(u.value)
	return l
}