Add broadcast command

internal/exts/arcon/arcon.go

@@ -101,3 +101,82 @@ func listplayers(ctx disgoman.Context, server geeksbot.Server) {
 		fmt.Sprintf("**%s:**%s", server.Name, strings.Join(players, "\n")),
 	)
 }
+
+var BroadcastCommand = &disgoman.Command{
+	Name:                "broadcast",
+	Aliases:             nil,
+	Description:         "Broadcast a message to ARK servers.",
+	OwnerOnly:           false,
+	Hidden:              false,
+	RequiredPermissions: 0,
+	Invoke:              broadcastCommandFunc,
+}
+
+func broadcastCommandFunc(ctx disgoman.Context, args []string) {
+	guild, err := services.GuildService.GetOrCreateGuild(ctx.Guild.ID)
+	if err != nil {
+		discord_utils.SendErrorMessage(ctx, "Error getting Guild from the database", err)
+		return
+	}
+	author, err := services.UserService.GetOrCreateUser(ctx.Message.Author.ID)
+	if err != nil {
+		discord_utils.SendErrorMessage(ctx, "Sorry, there was a problem getting your user.", err)
+		return
+	}
+	if !discord_utils.IsGuildAdmin(ctx, author) && !discord_utils.IsGuildMod(ctx, author) {
+		return
+	}
+	message := strings.Join(args[1:len(args)-1], " ")
+	if strings.ToLower(args[0]) == "all" {
+		servers, err := services.ServerService.GuildServers(guild)
+		if err != nil {
+			discord_utils.SendErrorMessage(ctx, "Could not find any servers for this guild", err)
+			return
+		}
+		for _, server := range servers {
+			go broadcast(ctx, server, message)
+		}
+		return
+	} else {
+		serverName := strings.Title(strings.ReplaceAll(args[0], "_", " "))
+		server, err := services.ServerService.ServerByName(serverName, guild)
+		if err != nil {
+			discord_utils.SendErrorMessage(ctx, fmt.Sprintf("Could not find %s", serverName), err)
+			return
+		}
+		broadcast(ctx, server, message)
+	}
+}
+
+func broadcast(ctx disgoman.Context, server geeksbot.Server, message string) {
+	msg, err := ctx.Send(fmt.Sprintf("**Broadcasting to: %s**", server.Name))
+	if err != nil {
+		discord_utils.SendErrorMessage(ctx, "There was an error getting the player list", err)
+		return
+	}
+	conn, err := rcon.Dial(fmt.Sprintf("%s:%d", server.IPAddr, server.Port), server.Password)
+	if err != nil {
+		_, _ = ctx.Session.ChannelMessageEdit(ctx.Channel.ID, msg.ID,
+			fmt.Sprintf("**Could not open connection to %s**", server.Name),
+		)
+		return
+	}
+	defer conn.Close()
+	userName := discord_utils.GetDisplayName(ctx, ctx.Message.Author.ID)
+	response, err := conn.Execute(fmt.Sprintf("broadcast %s: %s", userName, message))
+	if err != nil {
+		_, _ = ctx.Session.ChannelMessageEdit(ctx.Channel.ID, msg.ID,
+			fmt.Sprintf("**There was a problem getting a response from %s**", server.Name),
+		)
+		return
+	}
+	if response == "Server recieved, But no response!!" {
+		_, _ = ctx.Session.ChannelMessageEdit(ctx.Channel.ID, msg.ID,
+			fmt.Sprintf("**%s Broadcast Successful**", server.Name),
+		)
+		return
+	}
+	_, _ = ctx.Session.ChannelMessageEdit(ctx.Channel.ID, msg.ID,
+		fmt.Sprintf("**Broadcasting to %s Failed!**", server.Name),
+	)
+}