package xmpp

import (
	"encoding/xml"
	"log"
)

func runStreamPair(s *session) {
	openStream(s)
	defer closeStream(s)

	for {
		select {
		case data := <-s.in:
			switch data.(type) {
			case SessionShouldDisconnect:
				return
			default:
				log.Printf("Unknown data '%d'!\n", data)
			}
		case _ = <-s.rx:
			// TODO route received XML token here
		}
	}
}

func openStream(s *session) {
	start := xml.StartElement{
		xml.Name{"jabber:client", "stream:stream"},
		[]xml.Attr{
			xml.Attr{xml.Name{"", "from"}, s.jid},
			xml.Attr{xml.Name{"", "to"}, domainpart(s.jid)},
			xml.Attr{xml.Name{"", "version"}, "1.0"},
			xml.Attr{xml.Name{"", "xml:lang"}, "en"},
			xml.Attr{xml.Name{"", "xmlns:stream"}, "http://etherx.jabber.org/streams"},
		},
	}

	s.streamEnd = start.End()

	err := s.ed.encodeToken(start)
	if err != nil {
		log.Println("Could not encode stream start!")
	}
}

func closeStream(s *session) {
	err := s.ed.encodeToken(s.streamEnd)
	if err != nil {
		log.Println("Could not encode stream end!")
	}
}