Add utility to listen to DiscordGo for debugging

tools/listen.go

@@ -0,0 +1,46 @@
+package main
+
+import (
+	"encoding/json"
+	"flag"
+	"fmt"
+	"log"
+	"os"
+	"os/signal"
+	"syscall"
+
+	"github.com/bwmarrin/discordgo"
+)
+
+var (
+	token      string
+	dg         *discordgo.Session
+	guild     	string
+)
+
+func init() {
+	flag.StringVar(&token, "t", "", "Bot Token")
+	flag.StringVar(&guild, "g", "", "Guild ID")
+	flag.Parse()
+}
+
+func main() {
+	if token == "" {
+		fmt.Printf("No token provided. Please run: disgord-thanos -t <bot token>")
+	}
+	dg, _ = discordgo.New("Bot " + token)
+	dg.AddHandler(messageCreate)
+	_ = dg.Open()
+	sc := make(chan os.Signal, 1)
+	signal.Notify(sc, syscall.SIGINT, syscall.SIGTERM, os.Interrupt)
+	<-sc
+	dg.Close()
+}
+
+func messageCreate(s *discordgo.Session, m *discordgo.MessageCreate) {
+	jsonMsg, err := json.Marshal(m)
+	if err != nil {
+		jsonMsg = append(jsonMsg, '0')
+	}
+	log.Printf("----------\n%+v: %+v\n\n%+v\n------------------------------\n\n", m.Author.Username, m.Content, string(jsonMsg))
+}