package main

import (
	"fmt"
	"log"
	"os"
	"os/signal"
	"syscall"
	"time"

	"github.com/bwmarrin/discordgo"
	"layeh.com/gumble/gumble"
)

var Token = "NzkwMzAxNzMyMDU1MDIzNjU3.X9-n2A.OPsZtpapCRb66rA-3iigSpNTjHU"

func main() {
	conf, err := LoadConfig()
	if err != nil {
		panic(err)
	}
	dg, err := discordgo.New("Bot " + conf.Token)
	if err != nil {
		fmt.Println("error creating Discord session,", err)
		return
	}
	dg.Identify.Intents = discordgo.MakeIntent(discordgo.IntentsAllWithoutPrivileged)
	// Open a websocket connection to Discord and begin listening.
	err = dg.Open()
	if err != nil {
		fmt.Println("error opening connection,", err)
		return
	}
	log.Println("Opened discord session")

	c := make(chan int)
	go pingCheck(conf, c)
	go discordControl(dg, c)

	// Wait here until CTRL-C or other term signal is received.
	log.Println("Bot is now running.")
	sc := make(chan os.Signal, 1)
	signal.Notify(sc, syscall.SIGINT, syscall.SIGTERM, os.Interrupt, os.Kill)
	<-sc

	// Cleanly close down the Discord session.
	dg.Close()
}

func pingCheck(conf *Config, c chan int) {
	m, _ := time.ParseDuration("30s")
	curr := 0
	log.Println("Started mumble ping loop")
	for {
		time.Sleep(time.Duration(conf.MumblePing) * time.Second)
		resp, err := gumble.Ping(conf.MumbleHost+":"+conf.MumblePort, -1, m)
		if err != nil {
			panic(err)
		}
		if resp.ConnectedUsers != curr {
			curr = resp.ConnectedUsers
			log.Printf("Now %v users in mumble\n", curr)
			c <- curr
		}
	}
	log.Println("Mumble ping loop broken")
}

func discordControl(dg *discordgo.Session, c chan int) {
	status := ""
	curr := 0
	log.Println("Started discord control loop")
	for {
		curr = <-c
		log.Println("Updating discord status")
		if curr == 0 {
			status = ""
		} else {
			status = fmt.Sprintf("%v users in Mumble\n", curr)
		}
		dg.UpdateListeningStatus(status)
	}
	log.Println("Discord control loop broken")
}