init

.gitignore

@@ -0,0 +1 @@
+config.json

bot/bot.go

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+package bot
+
+import (
+	"fmt"
+	"github.com/bwmarrin/discordgo"
+)
+
+// Variables used for command line parameters
+var (
+	BotID   string
+	Session *discordgo.Session
+)
+
+func Connect(token string) {
+	// Create a new Discord session using the provided bot token.
+	var err error
+	Session, err = discordgo.New("Bot " + token)
+
+	if err != nil {
+		fmt.Println("error creating Discord session,", err)
+		return
+	}
+
+	// Get the account information.
+	u, err := Session.User("@me")
+	if err != nil {
+		fmt.Println("error obtaining account details,", err)
+	}
+
+	// Store the account ID for later use.
+	BotID = u.ID
+
+	fmt.Println("Bot connected")
+}
+
+func Start() {
+	// Open the websocket and begin listening.
+	err := Session.Open()
+	if err != nil {
+		fmt.Println("error opening connection,", err)
+		return
+	}
+
+	fmt.Println("Bot is now running.  Press CTRL-C to exit.")
+
+	// Simple way to keep program running until CTRL-C is pressed.
+	<-make(chan struct{})
+	return
+}
+
+func AddHandler(handler interface{}) {
+	Session.AddHandler(handler)
+}

config/config.go

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+package config
+
+import (
+	"encoding/json"
+	"io/ioutil"
+	"log"
+	"os"
+)
+
+// Variables used for command line parameters
+var Config configStruct
+
+type configStruct struct {
+	Token       string `json:"Token"`
+	AlertRoomID string `json:"AlertRoomID"`
+}
+
+func Configure() {
+
+	log.Println("Reading config file...")
+
+	file, e := ioutil.ReadFile("./config.json")
+
+	if e != nil {
+		log.Printf("File error: %v\n", e)
+		os.Exit(1)
+	}
+
+	log.Printf("%s\n", string(file))
+
+	err := json.Unmarshal(file, &Config)
+
+	if err != nil {
+		log.Println(err)
+	}
+
+}

main.go

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+package main
+
+import (
+	"./bot"
+	"./config"
+	"./serverstatus"
+)
+
+// Variables used for command line parameters
+var (
+	BotID string
+)
+
+func main() {
+	config.Configure()
+	bot.Connect(config.Config.Token)
+	serverstatus.Start()
+	bot.Start()
+
+}

readme.md

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+# GoBot
+
+My experimental Discord bot
+
+## Server Status
+
+This scans the Elysium PvP server checking to see if it is up.

serverstatus/serverstatus.go

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+package serverstatus
+
+import (
+	"../bot"
+	"../config"
+	"github.com/anvie/port-scanner"
+	"time"
+)
+
+func Start() {
+	go loop()
+}
+
+func loop() {
+	prevServerUp := true
+	elysiumPvP := portscanner.NewPortScanner("149.202.207.235", time.Second*2)
+
+	for {
+		serverUp := elysiumPvP.IsOpen(8099)
+
+		if serverUp && serverUp != prevServerUp {
+			sendMessage("@everyone Elysium PVP is now online!")
+		} else if !serverUp && serverUp != prevServerUp {
+			sendMessage("@everyone Elysium PVP is offline.")
+		}
+
+		prevServerUp = serverUp
+		time.Sleep(time.Second * 5)
+	}
+}
+
+func sendMessage(message string) {
+	bot.Session.ChannelMessageSend(config.Config.AlertRoomID, message)
+}