feat: propagating disconnect from twitch servers

Author: ProgrammingByPermutation

src/Nullinside.Api.Common/Twitch/ITwitchClientProxy.cs

@@ -73,4 +73,18 @@ public interface ITwitchClientProxy : IDisposable, IAsyncDisposable {
   /// <param name="callback">The callback to remove.</param>
   /// <returns>An asynchronous task.</returns>
   void RemoveRaidCallback(string channel, Action<OnRaidNotificationArgs> callback);
+  
+  /// <summary>
+  ///   Adds a callback for being disconnected from the twitch chat server.
+  /// </summary>
+  /// <param name="callback">The callback to invoke.</param>
+  /// <returns>An asynchronous task.</returns>
+  void AddDisconnectedCallback(Action callback);
+
+  /// <summary>
+  ///   Removes a callback for being disconnected from the twitch chat server.
+  /// </summary>
+  /// <param name="callback">The callback to remove.</param>
+  /// <returns>An asynchronous task.</returns>
+  void RemoveDisconnectedCallback(Action callback);
 }

src/Nullinside.Api.Common/Twitch/TwitchClientProxy.cs

@@ -52,6 +52,11 @@ public class TwitchClientProxy : ITwitchClientProxy {
   ///   The callback(s) to invoke when a channel receives a ban message.
   /// </summary>
   private readonly Dictionary<string, Action<OnUserBannedArgs>?> _onUserBanReceived = new();
+  
+  /// <summary>
+  ///   The callback(s) to invoke when the twitch chat client is disconnected from twitch chat.
+  /// </summary>
+  private Action? _onDisconnected;
 
   /// <summary>
   ///   A timer used to re-connect the Twitch chat client.
@@ -73,6 +78,9 @@ public class TwitchClientProxy : ITwitchClientProxy {
   /// </summary>
   private WebSocketClient? _socket;
 
+  /// <summary>
+  /// The twitch OAuth token to use to connect.
+  /// </summary>
   private string? _twitchOAuthToken;
 
   /// <summary>
@@ -227,6 +235,17 @@ public void RemoveBannedCallback(string channel, Action<OnUserBannedArgs> callba
       _onUserBanReceived.Remove(channel);
     }
   }
+  
+  /// <inheritdoc />
+  public void AddDisconnectedCallback(Action callback) {
+    _onDisconnected -= callback;
+    _onDisconnected += callback;
+  }
+
+  /// <inheritdoc />
+  public void RemoveDisconnectedCallback(Action callback) {
+    _onDisconnected -= callback;
+  }
 
   /// <inheritdoc />
   public async Task AddRaidCallback(string channel, Action<OnRaidNotificationArgs> callback) {
@@ -356,12 +375,7 @@ private Task<bool> Connect() {
           _client.OnRaidNotification += TwitchChatClient_OnRaidNotification;
           _client.OnDisconnected += (sender, args) => {
             LOG.Error("Twitch Client Disconnected");
-            try {
-              _client.Reconnect();
-            }
-            catch (Exception ex) {
-              LOG.Error("Twitch Client Reconnect Error", ex);
-            }
+            _onDisconnected?.Invoke();
           };
           _client.OnConnectionError += (sender, args) => {
             LOG.Error($"Twitch Client Connection Error: {args.Error.Message}");