bingobot/main.go

package main

import (
	"flag"
	"log"
	"os"
	"os/signal"

	"github.com/bwmarrin/discordgo"
	"gitlab.com/whom/bingobot/internal/config"
	"gitlab.com/whom/bingobot/internal/logging"
	"gitlab.com/whom/bingobot/internal/state"
)

var (
	Token = flag.String("token", "", "Bot authentication token")
	App   = flag.String("app", "", "Application ID")
	Guild = flag.String("guild", "", "Guild ID") // Do we want it to be tied to one server?

	appConfig *config.AppConfig
)

func main() {
	flag.Parse()
	if *App == "" {
		log.Fatal("application id is not set")
	}

	var err error

	appConfig, err = config.Parse()

	if err != nil {
		log.Fatal(err)
	}

	logging.Init(appConfig)

	err = startBot()

	if err != nil {
		log.Fatal(err)
	}
}

func startBot() error {
	state.DiscordSession, _ = discordgo.New("Bot " + *Token)

	err := state.DiscordSession.Open()
	if err != nil {
		logging.Error("could not open discord session", "type", "error", "error", err)
		return err
	}

	logging.Info("shutting down gracefully", "type", "shutdown")

	sigch := make(chan os.Signal, 1)
	signal.Notify(sigch, os.Interrupt)
	<-sigch

	logging.Info("shutting down gracefully", "type", "shutdown")

	err = state.DiscordSession.Close()
	if err != nil {
		logging.Error("could not close discord session gracefully", "type", "error", "error", err)
		return err
	}

	return nil
}