Added VOICE_SERVER_UPDATE handling

src/Discord.Net/API/DiscordVoiceAPIClient.cs

@@ -28,24 +28,19 @@ namespace Discord.Audio
         private readonly AsyncEvent<Func<VoiceOpCode, object, Task>> _receivedEvent = new AsyncEvent<Func<VoiceOpCode, object, Task>>();
         public event Func<Exception, Task> Disconnected { add { _disconnectedEvent.Add(value); } remove { _disconnectedEvent.Remove(value); } }
         private readonly AsyncEvent<Func<Exception, Task>> _disconnectedEvent = new AsyncEvent<Func<Exception, Task>>();
-
-        private readonly ulong _userId;
-        private readonly string _token;
+        
         private readonly JsonSerializer _serializer;
         private readonly IWebSocketClient _gatewayClient;
         private readonly SemaphoreSlim _connectionLock;
         private CancellationTokenSource _connectCancelToken;
+        private bool _isDisposed;
 
-        public ulong GuildId { get; }        
-        public string SessionId { get; }
+        public ulong GuildId { get; }
         public ConnectionState ConnectionState { get; private set; }
 
-        internal DiscordVoiceAPIClient(ulong guildId, ulong userId, string sessionId, string token, WebSocketProvider webSocketProvider, JsonSerializer serializer = null)
+        internal DiscordVoiceAPIClient(ulong guildId, WebSocketProvider webSocketProvider, JsonSerializer serializer = null)
         {
             GuildId = guildId;
-            _userId = userId;
-            SessionId = sessionId;
-            _token = token;
             _connectionLock = new SemaphoreSlim(1, 1);
 
             _gatewayClient = webSocketProvider();
@@ -78,6 +73,19 @@ namespace Discord.Audio
 
             _serializer = serializer ?? new JsonSerializer { ContractResolver = new DiscordContractResolver() };
         }
+        void Dispose(bool disposing)
+        {
+            if (!_isDisposed)
+            {
+                if (disposing)
+                {
+                    _connectCancelToken?.Dispose();
+                    (_gatewayClient as IDisposable)?.Dispose();
+                }
+                _isDisposed = true;
+            }
+        }
+        public void Dispose() => Dispose(true);
 
         public Task SendAsync(VoiceOpCode opCode, object payload, RequestOptions options = null)
         {
@@ -105,16 +113,16 @@ namespace Discord.Audio
             });
         }
 
-        public async Task ConnectAsync(string url)
+        public async Task ConnectAsync(string url, ulong userId, string sessionId, string token)
         {
             await _connectionLock.WaitAsync().ConfigureAwait(false);
             try
             {
-                await ConnectInternalAsync(url).ConfigureAwait(false);
+                await ConnectInternalAsync(url, userId, sessionId, token).ConfigureAwait(false);
             }
             finally { _connectionLock.Release(); }
         }
-        private async Task ConnectInternalAsync(string url)
+        private async Task ConnectInternalAsync(string url, ulong userId, string sessionId, string token)
         {
             ConnectionState = ConnectionState.Connecting;
             try
@@ -123,7 +131,7 @@ namespace Discord.Audio
                 _gatewayClient.SetCancelToken(_connectCancelToken.Token);                
                 await _gatewayClient.ConnectAsync(url).ConfigureAwait(false);
 
-                await SendIdentityAsync(GuildId, _userId, SessionId, _token).ConfigureAwait(false);
+                await SendIdentityAsync(GuildId, userId, sessionId, token).ConfigureAwait(false);
 
                 ConnectionState = ConnectionState.Connected;
             }

src/Discord.Net/Audio/AudioClient.cs

@@ -1,7 +1,6 @@
 using Discord.API.Voice;
 using Discord.Logging;
 using Discord.Net.Converters;
-using Discord.Net.WebSockets;
 using Newtonsoft.Json;
 using System;
 using System.Threading;
@@ -9,7 +8,7 @@ using System.Threading.Tasks;
 
 namespace Discord.Audio
 {
-    internal class AudioClient : IAudioClient
+    internal class AudioClient : IAudioClient, IDisposable
     {
         public event Func<Task> Connected
         {
@@ -17,12 +16,12 @@ namespace Discord.Audio
             remove { _connectedEvent.Remove(value); }
         }
         private readonly AsyncEvent<Func<Task>> _connectedEvent = new AsyncEvent<Func<Task>>();
-        public event Func<Task> Disconnected
+        public event Func<Exception, Task> Disconnected
         {
             add { _disconnectedEvent.Add(value); }
             remove { _disconnectedEvent.Remove(value); }
         }
-        private readonly AsyncEvent<Func<Task>> _disconnectedEvent = new AsyncEvent<Func<Task>>();
+        private readonly AsyncEvent<Func<Exception, Task>> _disconnectedEvent = new AsyncEvent<Func<Exception, Task>>();
         public event Func<int, int, Task> LatencyUpdated
         {
             add { _latencyUpdatedEvent.Add(value); }
@@ -34,28 +33,30 @@ namespace Discord.Audio
 #if BENCHMARK
         private readonly ILogger _benchmarkLogger;
 #endif
-        private readonly JsonSerializer _serializer;
         internal readonly SemaphoreSlim _connectionLock;
+        private readonly JsonSerializer _serializer;
 
         private TaskCompletionSource<bool> _connectTask;
         private CancellationTokenSource _cancelToken;
-        private Task _heartbeatTask, _reconnectTask;
+        private Task _heartbeatTask;
         private long _heartbeatTime;
-        private bool _isReconnecting;
         private string _url;
+        private bool _isDisposed;
 
-        private DiscordSocketClient Discord { get; }
+        public CachedGuild Guild { get; }
         public DiscordVoiceAPIClient ApiClient { get; private set; }
         public ConnectionState ConnectionState { get; private set; }
         public int Latency { get; private set; }
 
+        private DiscordSocketClient Discord => Guild.Discord;
+
         /// <summary> Creates a new REST/WebSocket discord client. </summary>
-        internal AudioClient(DiscordSocketClient discord, ulong guildId, ulong userId, string sessionId, string token, WebSocketProvider webSocketProvider, ILogManager logManager)
+        internal AudioClient(CachedGuild guild)
         {
-            Discord = discord;
+            Guild = guild;
 
-            _webSocketLogger = logManager.CreateLogger("Audio");
-            _udpLogger = logManager.CreateLogger("AudioUDP");
+            _webSocketLogger = Discord.LogManager.CreateLogger("Audio");
+            _udpLogger = Discord.LogManager.CreateLogger("AudioUDP");
 #if BENCHMARK
             _benchmarkLogger = logManager.CreateLogger("Benchmark");
 #endif
@@ -69,38 +70,34 @@ namespace Discord.Audio
                 e.ErrorContext.Handled = true;
             };
             
-            ApiClient = new DiscordVoiceAPIClient(guildId, userId, sessionId, token, webSocketProvider);
+            ApiClient = new DiscordVoiceAPIClient(guild.Id, Discord.WebSocketProvider);
 
             ApiClient.SentGatewayMessage += async opCode => await _webSocketLogger.DebugAsync($"Sent {(VoiceOpCode)opCode}").ConfigureAwait(false);
             ApiClient.ReceivedEvent += ProcessMessageAsync;
             ApiClient.Disconnected += async ex =>
             {
                 if (ex != null)
-                {
                     await _webSocketLogger.WarningAsync($"Connection Closed: {ex.Message}").ConfigureAwait(false);
-                    await StartReconnectAsync().ConfigureAwait(false);
-                }
                 else
                     await _webSocketLogger.WarningAsync($"Connection Closed").ConfigureAwait(false);
             };
         }
 
         /// <inheritdoc />
-        public async Task ConnectAsync(string url)
+        public async Task ConnectAsync(string url, ulong userId, string sessionId, string token)
         {
             await _connectionLock.WaitAsync().ConfigureAwait(false);
             try
             {
-                _isReconnecting = false;
-                await ConnectInternalAsync(url).ConfigureAwait(false);
+                await ConnectInternalAsync(url, userId, sessionId, token).ConfigureAwait(false);
             }
             finally { _connectionLock.Release(); }
         }
-        private async Task ConnectInternalAsync(string url)
+        private async Task ConnectInternalAsync(string url, ulong userId, string sessionId, string token)
         {
             var state = ConnectionState;
             if (state == ConnectionState.Connecting || state == ConnectionState.Connected)
-                await DisconnectInternalAsync().ConfigureAwait(false);
+                await DisconnectInternalAsync(null).ConfigureAwait(false);
 
             ConnectionState = ConnectionState.Connecting;
             await _webSocketLogger.InfoAsync("Connecting").ConfigureAwait(false);
@@ -109,7 +106,7 @@ namespace Discord.Audio
                 _url = url;
                 _connectTask = new TaskCompletionSource<bool>();
                 _cancelToken = new CancellationTokenSource();
-                await ApiClient.ConnectAsync(url).ConfigureAwait(false);
+                await ApiClient.ConnectAsync(url, userId, sessionId, token).ConfigureAwait(false);
                 await _connectedEvent.InvokeAsync().ConfigureAwait(false);
 
                 await _connectTask.Task.ConfigureAwait(false);
@@ -119,7 +116,7 @@ namespace Discord.Audio
             }
             catch (Exception)
             {
-                await DisconnectInternalAsync().ConfigureAwait(false);
+                await DisconnectInternalAsync(null).ConfigureAwait(false);
                 throw;
             }
         }
@@ -129,12 +126,20 @@ namespace Discord.Audio
             await _connectionLock.WaitAsync().ConfigureAwait(false);
             try
             {
-                _isReconnecting = false;
-                await DisconnectInternalAsync().ConfigureAwait(false);
+                await DisconnectInternalAsync(null).ConfigureAwait(false);
+            }
+            finally { _connectionLock.Release(); }
+        }
+        private async Task DisconnectAsync(Exception ex)
+        {
+            await _connectionLock.WaitAsync().ConfigureAwait(false);
+            try
+            {
+                await DisconnectInternalAsync(ex).ConfigureAwait(false);
             }
             finally { _connectionLock.Release(); }
         }
-        private async Task DisconnectInternalAsync()
+        private async Task DisconnectInternalAsync(Exception ex)
         {
             if (ConnectionState == ConnectionState.Disconnected) return;
             ConnectionState = ConnectionState.Disconnecting;
@@ -155,61 +160,7 @@ namespace Discord.Audio
             ConnectionState = ConnectionState.Disconnected;
             await _webSocketLogger.InfoAsync("Disconnected").ConfigureAwait(false);
 
-            await _disconnectedEvent.InvokeAsync().ConfigureAwait(false);
-        }
-
-        private async Task StartReconnectAsync()
-        {
-            //TODO: Is this thread-safe?
-            if (_reconnectTask != null) return;
-
-            await _connectionLock.WaitAsync().ConfigureAwait(false);
-            try
-            {
-                if (_reconnectTask != null) return;
-                _isReconnecting = true;
-                _reconnectTask = ReconnectInternalAsync();
-            }
-            finally { _connectionLock.Release(); }
-        }
-        private async Task ReconnectInternalAsync()
-        {
-            try
-            {
-                int nextReconnectDelay = 1000;
-                while (_isReconnecting)
-                {
-                    try
-                    {
-                        await Task.Delay(nextReconnectDelay).ConfigureAwait(false);
-                        nextReconnectDelay *= 2;
-                        if (nextReconnectDelay > 30000)
-                            nextReconnectDelay = 30000;
-
-                        await _connectionLock.WaitAsync().ConfigureAwait(false);
-                        try
-                        {
-                            await ConnectInternalAsync(_url).ConfigureAwait(false);
-                        }
-                        finally { _connectionLock.Release(); }
-                        return;
-                    }
-                    catch (Exception ex)
-                    {
-                        await _webSocketLogger.WarningAsync("Reconnect failed", ex).ConfigureAwait(false);
-                    }
-                }
-            }
-            finally
-            {
-                await _connectionLock.WaitAsync().ConfigureAwait(false);
-                try
-                {
-                    _isReconnecting = false;
-                    _reconnectTask = null;
-                }
-                finally { _connectionLock.Release(); }
-            }
+            await _disconnectedEvent.InvokeAsync(ex).ConfigureAwait(false);
         }
 
         private async Task ProcessMessageAsync(VoiceOpCode opCode, object payload)
@@ -285,7 +236,7 @@ namespace Discord.Audio
                         if (ConnectionState == ConnectionState.Connected)
                         {
                             await _webSocketLogger.WarningAsync("Server missed last heartbeat").ConfigureAwait(false);
-                            await StartReconnectAsync().ConfigureAwait(false);
+                            await DisconnectInternalAsync(new Exception("Server missed last heartbeat")).ConfigureAwait(false);
                             return;
                         }
                     }
@@ -296,5 +247,14 @@ namespace Discord.Audio
             }
             catch (OperationCanceledException) { }
         }
+
+        internal virtual void Dispose(bool disposing)
+        {
+            if (!_isDisposed)
+                _isDisposed = true;
+            ApiClient.Dispose();
+        }
+        /// <inheritdoc />
+        public void Dispose() => Dispose(true);
     }
 }

src/Discord.Net/Audio/IAudioClient.cs

@@ -6,7 +6,7 @@ namespace Discord.Audio
     public interface IAudioClient
     {
         event Func<Task> Connected;
-        event Func<Task> Disconnected;
+        event Func<Exception, Task> Disconnected;
         event Func<int, int, Task> LatencyUpdated;
 
         DiscordVoiceAPIClient ApiClient { get; }

src/Discord.Net/DiscordClient.cs

@@ -26,13 +26,13 @@ namespace Discord
 
         internal readonly ILogger _discordLogger, _restLogger, _queueLogger;
         internal readonly SemaphoreSlim _connectionLock;
-        internal readonly LogManager _log;
         internal readonly RequestQueue _requestQueue;
         internal bool _isDisposed;
         internal SelfUser _currentUser;
 
+        public API.DiscordApiClient ApiClient { get; }
+        internal LogManager LogManager { get; }
         public LoginState LoginState { get; private set; }
-        public API.DiscordApiClient ApiClient { get; private set; }
 
         /// <summary> Creates a new REST-only discord client. </summary>
         public DiscordClient()
@@ -40,11 +40,11 @@ namespace Discord
         /// <summary> Creates a new REST-only discord client. </summary>
         public DiscordClient(DiscordConfig config)
         {
-            _log = new LogManager(config.LogLevel);
-            _log.Message += async msg => await _logEvent.InvokeAsync(msg).ConfigureAwait(false);
-            _discordLogger = _log.CreateLogger("Discord");
-            _restLogger = _log.CreateLogger("Rest");
-            _queueLogger = _log.CreateLogger("Queue");
+            LogManager = new LogManager(config.LogLevel);
+            LogManager.Message += async msg => await _logEvent.InvokeAsync(msg).ConfigureAwait(false);
+            _discordLogger = LogManager.CreateLogger("Discord");
+            _restLogger = LogManager.CreateLogger("Rest");
+            _queueLogger = LogManager.CreateLogger("Queue");
 
             _connectionLock = new SemaphoreSlim(1, 1);
 
@@ -267,6 +267,8 @@ namespace Discord
         public void Dispose() => Dispose(true);
         
         ConnectionState IDiscordClient.ConnectionState => ConnectionState.Disconnected;
+        ILogManager IDiscordClient.LogManager => LogManager;
+
         Task IDiscordClient.ConnectAsync() { throw new NotSupportedException(); }
         Task IDiscordClient.DisconnectAsync() { throw new NotSupportedException(); }
     }

src/Discord.Net/DiscordSocketClient.Events.cs

@@ -13,12 +13,12 @@ namespace Discord
             remove { _connectedEvent.Remove(value); }
         }
         private readonly AsyncEvent<Func<Task>> _connectedEvent = new AsyncEvent<Func<Task>>();
-        public event Func<Task> Disconnected
+        public event Func<Exception, Task> Disconnected
         {
             add { _disconnectedEvent.Add(value); }
             remove { _disconnectedEvent.Remove(value); }
         }
-        private readonly AsyncEvent<Func<Task>> _disconnectedEvent = new AsyncEvent<Func<Task>>();
+        private readonly AsyncEvent<Func<Exception, Task>> _disconnectedEvent = new AsyncEvent<Func<Exception, Task>>();
         public event Func<Task> Ready
         {
             add { _readyEvent.Add(value); }

src/Discord.Net/DiscordSocketClient.cs

@@ -75,7 +75,7 @@ namespace Discord
             AudioMode = config.AudioMode;
             WebSocketProvider = config.WebSocketProvider;
 
-            _gatewayLogger = _log.CreateLogger("Gateway");
+            _gatewayLogger = LogManager.CreateLogger("Gateway");
 #if BENCHMARK
             _benchmarkLogger = _log.CreateLogger("Benchmark");
 #endif
@@ -94,7 +94,7 @@ namespace Discord
                 if (ex != null)
                 {
                     await _gatewayLogger.WarningAsync($"Connection Closed: {ex.Message}").ConfigureAwait(false);
-                    await StartReconnectAsync().ConfigureAwait(false);
+                    await StartReconnectAsync(ex).ConfigureAwait(false);
                 }
                 else
                     await _gatewayLogger.WarningAsync($"Connection Closed").ConfigureAwait(false);
@@ -112,7 +112,7 @@ namespace Discord
         protected override async Task OnLogoutAsync()
         {
             if (ConnectionState != ConnectionState.Disconnected)
-                await DisconnectInternalAsync().ConfigureAwait(false);
+                await DisconnectInternalAsync(null).ConfigureAwait(false);
 
             _voiceRegions = ImmutableDictionary.Create<string, VoiceRegion>();
         }
@@ -142,7 +142,7 @@ namespace Discord
 
             var state = ConnectionState;
             if (state == ConnectionState.Connecting || state == ConnectionState.Connected)
-                await DisconnectInternalAsync().ConfigureAwait(false);
+                await DisconnectInternalAsync(null).ConfigureAwait(false);
 
             ConnectionState = ConnectionState.Connecting;
             await _gatewayLogger.InfoAsync("Connecting").ConfigureAwait(false);
@@ -165,7 +165,7 @@ namespace Discord
             }
             catch (Exception)
             {
-                await DisconnectInternalAsync().ConfigureAwait(false);
+                await DisconnectInternalAsync(null).ConfigureAwait(false);
                 throw;
             }
         }
@@ -176,11 +176,11 @@ namespace Discord
             try
             {
                 _isReconnecting = false;
-                await DisconnectInternalAsync().ConfigureAwait(false);
+                await DisconnectInternalAsync(null).ConfigureAwait(false);
             }
             finally { _connectionLock.Release(); }
         }
-        private async Task DisconnectInternalAsync()
+        private async Task DisconnectInternalAsync(Exception ex)
         {
             ulong guildId;
 
@@ -211,10 +211,10 @@ namespace Discord
             ConnectionState = ConnectionState.Disconnected;
             await _gatewayLogger.InfoAsync("Disconnected").ConfigureAwait(false);
 
-            await _disconnectedEvent.InvokeAsync().ConfigureAwait(false);
+            await _disconnectedEvent.InvokeAsync(ex).ConfigureAwait(false);
         }
 
-        private async Task StartReconnectAsync()
+        private async Task StartReconnectAsync(Exception ex)
         {
             //TODO: Is this thread-safe?
             if (_reconnectTask != null) return;
@@ -222,6 +222,7 @@ namespace Discord
             await _connectionLock.WaitAsync().ConfigureAwait(false);
             try
             {
+                await DisconnectInternalAsync(ex).ConfigureAwait(false);
                 if (_reconnectTask != null) return;
                 _isReconnecting = true;
                 _reconnectTask = ReconnectInternalAsync();
@@ -469,7 +470,7 @@ namespace Discord
                             await _gatewayLogger.DebugAsync("Received Reconnect").ConfigureAwait(false);
                             await _gatewayLogger.WarningAsync("Server requested a reconnect").ConfigureAwait(false);
 
-                            await StartReconnectAsync().ConfigureAwait(false);
+                            await StartReconnectAsync(new Exception("Server requested a reconnect")).ConfigureAwait(false);
                         }
                         break;
                     case GatewayOpCode.Dispatch:
@@ -1113,9 +1114,7 @@ namespace Discord
 
                                             var user = guild.GetUser(data.UserId);
                                             if (user != null)
-                                            {
                                                 await _userVoiceStateUpdatedEvent.InvokeAsync(user, before, after).ConfigureAwait(false);
-                                            }
                                             else
                                             {
                                                 await _gatewayLogger.WarningAsync("VOICE_STATE_UPDATE referenced an unknown user.").ConfigureAwait(false);
@@ -1131,7 +1130,21 @@ namespace Discord
                                 }
                                 break;
                             case "VOICE_SERVER_UPDATE":
-                                await _gatewayLogger.DebugAsync("Ignored Dispatch (VOICE_SERVER_UPDATE)").ConfigureAwait(false);
+                                await _gatewayLogger.DebugAsync("Received Dispatch (VOICE_SERVER_UPDATE)").ConfigureAwait(false);
+
+                                if (AudioMode != AudioMode.Disabled)
+                                {
+                                    var data = (payload as JToken).ToObject<VoiceServerUpdateEvent>(_serializer);
+                                    var guild = DataStore.GetGuild(data.GuildId);
+                                    if (guild != null)
+                                        await guild.ConnectAudio("wss://" + data.Endpoint, data.Token).ConfigureAwait(false);
+                                    else
+                                    {
+                                        await _gatewayLogger.WarningAsync("VOICE_SERVER_UPDATE referenced an unknown guild.").ConfigureAwait(false);
+                                        return;
+                                    }
+                                }
+
                                 return;
 
                             //Ignored (User only)
@@ -1183,7 +1196,7 @@ namespace Discord
                         if (ConnectionState == ConnectionState.Connected && (_guildDownloadTask?.IsCompleted ?? false))
                         {
                             await _gatewayLogger.WarningAsync("Server missed last heartbeat").ConfigureAwait(false);
-                            await StartReconnectAsync().ConfigureAwait(false);
+                            await StartReconnectAsync(new Exception("Server missed last heartbeat")).ConfigureAwait(false);
                             return;
                         }
                     }

src/Discord.Net/Entities/WebSocket/CachedGuild.cs

@@ -5,6 +5,7 @@ using System.Collections.Concurrent;
 using System.Collections.Generic;
 using System.Collections.Immutable;
 using System.Linq;
+using System.Threading;
 using System.Threading.Tasks;
 using ChannelModel = Discord.API.Channel;
 using EmojiUpdateModel = Discord.API.Gateway.GuildEmojiUpdateEvent;
@@ -17,8 +18,9 @@ using VoiceStateModel = Discord.API.VoiceState;
 
 namespace Discord
 {
-    internal class CachedGuild : Guild, IUserGuild, ICachedEntity<ulong>
+    internal class CachedGuild : Guild, ICachedEntity<ulong>, IGuild, IUserGuild
     {
+        private readonly SemaphoreSlim _audioLock;
         private TaskCompletionSource<bool> _downloaderPromise;
         private ConcurrentHashSet<ulong> _channels;
         private ConcurrentDictionary<ulong, CachedGuildUser> _members;
@@ -27,7 +29,7 @@ namespace Discord
         public bool Available { get; private set; }
         public int MemberCount { get; private set; }
         public int DownloadedMemberCount { get; private set; }
-        public IAudioClient AudioClient { get; private set; }
+        public  AudioClient AudioClient { get; private set; }
 
         public bool HasAllMembers => _downloaderPromise.Task.IsCompleted;
         public Task DownloaderPromise => _downloaderPromise.Task;
@@ -48,6 +50,7 @@ namespace Discord
         
         public CachedGuild(DiscordSocketClient discord, ExtendedModel model, DataStore dataStore) : base(discord, model)
         {
+            _audioLock = new SemaphoreSlim(1, 1);
             _downloaderPromise = new TaskCompletionSource<bool>();
             Update(model, UpdateSource.Creation, dataStore);
         }
@@ -236,6 +239,55 @@ namespace Discord
             return null;
         }
 
+        public async Task ConnectAudio(string url, string token)
+        {
+            AudioClient audioClient;
+            await _audioLock.WaitAsync().ConfigureAwait(false);
+            var voiceState = GetVoiceState(CurrentUser.Id).Value;
+            try
+            {
+                audioClient = AudioClient;
+                if (audioClient == null)
+                {
+                    audioClient = new AudioClient(this);
+                    audioClient.Disconnected += async ex =>
+                    {
+                        await _audioLock.WaitAsync().ConfigureAwait(false);
+                        try
+                        {
+                            if (ex != null)
+                            {
+                                //Reconnect if we still have channel info.
+                                //TODO: Is this threadsafe? Could channel data be deleted before we access it?
+                                var voiceState2 = GetVoiceState(CurrentUser.Id);
+                                if (voiceState2.HasValue)
+                                {
+                                    var voiceChannelId = voiceState2.Value.VoiceChannel?.Id;
+                                    if (voiceChannelId != null)
+                                        await Discord.ApiClient.SendVoiceStateUpdateAsync(Id, voiceChannelId, voiceState2.Value.IsSelfDeafened, voiceState2.Value.IsSelfMuted);
+                                }
+                            }
+                            else
+                            {
+                                try { AudioClient.Dispose(); } catch { }
+                                AudioClient = null;
+                            }
+                        }
+                        finally
+                        {
+                            _audioLock.Release();
+                        }
+                    };
+                    AudioClient = audioClient;
+                }
+            }
+            finally
+            {
+                _audioLock.Release();
+            }
+            await audioClient.ConnectAsync(url, CurrentUser.Id, voiceState.VoiceSessionId, token).ConfigureAwait(false);
+        }
+
         public CachedGuild Clone() => MemberwiseClone() as CachedGuild;
 
         new internal ICachedGuildChannel ToChannel(ChannelModel model)
@@ -253,5 +305,6 @@ namespace Discord
 
         bool IUserGuild.IsOwner => OwnerId == Discord.CurrentUser.Id;
         GuildPermissions IUserGuild.Permissions => CurrentUser.GuildPermissions;
+        IAudioClient IGuild.AudioClient => AudioClient;
     }
 }

src/Discord.Net/IDiscordClient.cs

@@ -1,4 +1,5 @@
 using Discord.API;
+using Discord.Logging;
 using System;
 using System.Collections.Generic;
 using System.IO;
@@ -13,6 +14,7 @@ namespace Discord
         ConnectionState ConnectionState { get; }
 
         DiscordApiClient ApiClient { get; }
+        ILogManager LogManager { get; }
         
         Task LoginAsync(TokenType tokenType, string token, bool validateToken = true);
         Task LogoutAsync();