1 files changed, 112 insertions, 0 deletions
diff --git a/DiscoBot/Audio/Voice.cs b/DiscoBot/Audio/Voice.cs
new file mode 100644
index 0000000..d1f7915
--- /dev/null
+++ b/DiscoBot/Audio/Voice.cs
@@ -0,0 +1,112 @@
+namespace DiscoBot.Audio
+{
+    using System;
+    using System.Collections.Generic;
+    using System.ComponentModel;
+    using System.Diagnostics;
+    using System.Linq;
+    using System.Threading.Tasks;
+
+    using DiscoBot.Auxiliary;
+
+    using Discord;
+    using Discord.Audio;
+    using Discord.Commands;
+
+    public class Voice : ModuleBase
+    {
+        public static IAudioClient Client { get; set; }
+
+        public static async Task SendAsync(string path, int volume = 256)
+        {
+            if (Client == null)
+            {
+                throw new NullReferenceException("Bot befindet sich nicht in einem Sprachchannel");
+            }
+
+            // Create FFmpeg using the previous example
+                var ffmpeg = CreateStream(path, volume);
+            var output = ffmpeg.StandardOutput.BaseStream;
+            var barInvoker = new BackgroundWorker();
+            barInvoker.DoWork += delegate
+                {
+                    var discord = Client.CreatePCMStream(AudioApplication.Music);
+                    output.CopyToAsync(discord);
+
+                    discord.FlushAsync();
+                };
+            
+            barInvoker.RunWorkerAsync();
+        }
+
+        [Command("join", RunMode = RunMode.Async)]
+        public async Task JoinChannelAsync(IVoiceChannel channel = null)
+        {
+            var msg = this.Context.Message;
+
+            // Get the audio channel
+            channel = channel ?? (msg.Author as IGuildUser)?.VoiceChannel;
+            if (channel == null)
+            {
+                await msg.Channel.SendMessageAsync(
+                    "User must be in a voice channel, or a voice channel must be passed as an argument.");
+                return;
+            }
+
+            // For the next step with transmitting audio, you would want to pass this Audio Client in to a service.
+            var audioClient = await channel.ConnectAsync();
+            Client = audioClient;
+        }
+
+        [Command("leave", RunMode = RunMode.Async)]
+        public async Task LeaveChannelAsync(IVoiceChannel channel = null)
+        {
+            if (Client != null)
+            {
+                var wait = SoundEffects.Play(Sound.Nooo);
+                await Client.StopAsync();
+                Client = null;
+                wait.Wait();
+            }
+        }
+
+        [Command("play", RunMode = RunMode.Async)]
+        public async Task PlayAudioAsync(string path)
+        {
+            if (Client == null)
+            {
+                await this.Context.Channel.SendMessageAsync("Erst Joinen!");
+            }
+
+            var sounds = Enum.GetValues(typeof(Sound));
+            var soundList = new List<Sound>();
+            foreach (var sound in sounds)
+            {
+                soundList.Add((Sound)sound);
+            }
+
+            var sc = new SpellCorrect();
+
+            var tSound = soundList.OrderBy(x => sc.Compare(path, x.ToString())).First();
+
+            if (sc.Compare(path, tSound.ToString()) > SpellCorrect.ErrorThreshold)
+            {
+                await Task.Run(() => Voice.SendAsync(path));
+            }
+
+            await Task.Run(() => SoundEffects.Play(tSound));
+        }
+
+        private static Process CreateStream(string path, int vol = 256)
+        {
+            var ffmpeg = new ProcessStartInfo
+            {
+                FileName = "ffmpeg",
+                Arguments = $"-i {path}  -ac 2 -f s16le -ar 48000 -ab 620000 -vol {vol} pipe:1",
+                UseShellExecute = false,
+                RedirectStandardOutput = true,
+            };
+            return Process.Start(ffmpeg);
+        }
+    }
+}