using System;

using System.Threading.Tasks;

using Discord;

using Discord.WebSocket;

public class Program

{

    DiscordSocketClient client;

    public static void Main(string[] args)

      => new Program().MainAsync().GetAwaiter().GetResult();

    private async Task MainAsync()

    {

        client = new DiscordSocketClient();

        client.MessageReceived += CommandHandler;

        client.Log += Log;

        var token = "MTA3OTg3MTc0Njg1NDg4NzQ1NQ.Gd-BAu.3E0ASLmMIyJ0e85tftC9juR7Ipzlo9ox3LHads";

        await client.LoginAsync(TokenType.Bot, token);

        await client.StartAsync();

        Console.ReadLine();

    }

    private Task CommandHandler(SocketMessage msg)

    {

        if (!msg.Author.IsBot)

        switch (msg.Content)

        {

            case  "!hello":

                {

                msg.Channel.SendMessageAsync($"Hello, {msg.Timestamp}");

                }

        }

        return Task.CompletedTask;

    }

    private Task Log(LogMessage msg)

    {

    Console.WriteLine(msg.ToString());

        return Task.CompletedTask; 

    }

}