// Copyright 2020 - 2021 Martin Dosch.
// Use of this source code is governed by the BSD-2-clause
// license that can be found in the LICENSE file.

package main

import (
	"log"

	"github.com/mattn/go-xmpp" // BSD-3-Clause
)

func sendIQ(client *xmpp.Client, target string, iQtype string,
	content string) (xmpp.IQ, error) {
	var iq xmpp.IQ
	id := getID()
	c := make(chan xmpp.IQ)
	go getIQ(client, id, c)
	_, err := client.RawInformation(client.JID(), target, id,
		iQtype, content)
	if err != nil {
		return iq, err
	}
	iq = <-c
	close(c)
	return iq, nil
}

func getIQ(client *xmpp.Client, id string, c chan xmpp.IQ) {
	for {
		msg, err := client.Recv()
		if err != nil {
			log.Fatal(err)
		}

		switch v := msg.(type) {
		case xmpp.IQ:
			if v.ID == id {
				c <- v
				return
			}
		}
	}
}