using System.Threading.Tasks;
using Discord;
using Discord.Commands;
using System.Diagnostics;
using Discord.Audio;
using System;
using System.Runtime.InteropServices;


public class SoundPlayer : ModuleBase<ICommandContext>

    {
    [DllImport("libc")]
    public static extern int system(string exec);
    public static IAudioClient client;


        private Process CreateStream(string url)
        {
        Process currentsong = new Process();
        currentsong.StartInfo = new ProcessStartInfo
        {
            Arguments = Convert.ToString(system("youtube-dl -o - " + url + " | ffmpeg -i pipe:0 -ac 2 -f s16le -ar 48000 pipe:1 &"))

        };
        currentsong.Start();
        return currentsong;
        }


        [Command("play", RunMode = RunMode.Async)]
        public async Task play(string url, IVoiceChannel channel = null)
        {
            var User = Context.User;
            var Channel = Context.Channel;
            channel = channel ?? (User as IGuildUser)?.VoiceChannel;
            var audioClient = await channel.ConnectAsync();

            var output = CreateStream(url).StandardOutput.BaseStream;
            var stream = audioClient.CreatePCMStream(AudioApplication.Music, 128 * 1024);
           await output.CopyToAsync(stream);
           await stream.FlushAsync().ConfigureAwait(false);
        }



}