package main

import (
	"flag"
	"fmt"
	"github.com/bwmarrin/discordgo"
	"log"
	"os"
	"os/signal"
	"syscall"
)

var Session, _ = discordgo.New()
var testPtr = flag.Bool("test", false, "Test mode")
var bot_token string
var bot_channel string

func init() {
	flag.StringVar(&bot_token, "t", "", "Discord Authentication Token")
	flag.StringVar(&bot_channel, "bc", "", "Bot status channel")
	flag.Parse()
	if os.Getenv("DISCORD_TOKEN") != "" {
		Session.Token = "Bot " + os.Getenv("DISCORD_TOKEN")
	} else {
		Session.Token = "Bot " + bot_token
	}
	if os.Getenv("DISCORD_BOT_CHANNEL") != "" {
		bot_channel = os.Getenv("DISCORD_BOT_CHANNEL")
	}
}

func main() {
	var err error
	fmt.Println("butts!")
	flag.Parse()
	if Session.Token == "" {
		log.Println("You must provide a Discord auth token!")
		return
	}

	//Handlers
	Session.AddHandler(ready)

	//Open a connection to Discord
	err = Session.Open()
	if err != nil {
		log.Printf("Error opening connection to Discord, %s\n", err)
		os.Exit(1)
	}

	//Wait for a CTRL-C
	log.Printf("Now running. Press CTRL-C to exit.")
	sc := make(chan os.Signal, 1)
	signal.Notify(sc, syscall.SIGINT, syscall.SIGTERM, os.Interrupt, os.Kill)
	<-sc
	Session.Close()
}

func ready(s *discordgo.Session, event *discordgo.Ready) {
	if *testPtr == true {
		s.ChannelMessageSend(bot_channel, "Test complete: discord-buttsbot-go")
		log.Printf("Test successful! Now quiting.")
		s.Close()
		os.Exit(0)
	}
	s.UpdateStatus(0, "with butts!")
	s.ChannelMessageSend(bot_channel, "This isn't a butt...")
}