package xmpp

import (
	"encoding/xml"
	"log"
	"os"
)

type encoderDecoder struct{
	session *session
	ct *xml.Encoder  // client transport encoder
	cl *xml.Encoder  // client log encoder
}

func newEncoderDecoder(s *session) encoderDecoder {
	ed := encoderDecoder{}

	ed.session = s

	ed.ct = xml.NewEncoder(s.transport)
	ed.ct.Indent("", "    ")

	ed.cl = xml.NewEncoder(os.Stdout)
	ed.cl.Indent("C: ", "    ")

	return ed
}

func (ed *encoderDecoder) encodeToken(t xml.Token) error {
	var err error
	defer func() { if err != nil { log.Println(err) } }()

	err = ed.ct.EncodeToken(t)
	if err != nil { return err }
	err = ed.ct.Flush()
	if err != nil { return err }

	err = ed.cl.EncodeToken(t)
	if err != nil { return err }
	err = ed.cl.Flush()
	if err != nil { return err }

	return nil
}