package main

import (
	"fmt"
	"log"
	"net/http"
	"net/url"
	"os"

	"github.com/PuerkitoBio/goquery"
)

func main() {
	bbbName := "bbbBot"
	bbbURL, _ := url.Parse(os.Args[1])

	res, err := http.Get(bbbURL.String())
	if err != nil {
		log.Fatal(err)
	}
	defer res.Body.Close()
	if res.StatusCode != 200 {
		log.Fatalf("status code error: %d %s", res.StatusCode, res.Status)
	}

	doc, err := goquery.NewDocumentFromReader(res.Body)
	if err != nil {
		log.Fatal(err)
	}
	form := doc.Find("form")
	authToken, ok := form.Find("input[name='authenticity_token']").Attr("value")
	if !ok {
		log.Fatalln("'authenticity_token' not found")
	}
	res.Body.Close()
	// ----
	res, err = http.PostForm(bbbURL.String(), url.Values{
		"authenticity_token":                      {authToken},
		fmt.Sprintf("%s[join_name]", bbbURL.Path): {bbbName},
	})
	//defer res.Body.Close()
	if res.StatusCode != 200 {
		log.Fatalf("status code error: %d %s", res.StatusCode, res.Status)
	}
	log.Printf("%v", res.Request.Header.Get("Referer"))

	/* not needed ... websocket
	doc, err = goquery.NewDocumentFromReader(res.Body)
	if err != nil {
		log.Fatal(err)
	}
	log.Println(doc.Html())
	*/
}