Cleaned up request acks. Added internal service bus for internal messaging.

Hermes/Socket/Requests/GetTTSUsersAck.cs

@@ -0,0 +1,35 @@
+using System.Collections.Concurrent;
+using System.Text.Json;
+using Serilog;
+
+namespace TwitchChatTTS.Hermes.Socket.Requests
+{
+    public class GetTTSUsersAck : IRequestAck
+    {
+        public string Name => "get_tts_users";
+        private readonly User _user;
+        private readonly JsonSerializerOptions _options;
+        private readonly ILogger _logger;
+
+        public GetTTSUsersAck(User user, JsonSerializerOptions options, ILogger logger)
+        {
+            _user = user;
+            _options = options;
+            _logger = logger;
+        }
+
+        public void Acknowledge(string requestId, string json, IDictionary<string, object>? requestData)
+        {
+            var users = JsonSerializer.Deserialize<IDictionary<long, string>>(json, _options);
+            if (users == null)
+                return;
+
+            var temp = new ConcurrentDictionary<long, string>();
+            foreach (var entry in users)
+                temp.TryAdd(entry.Key, entry.Value);
+            
+            _user.VoicesSelected = temp;
+            _logger.Information($"Updated chatters' selected voice [count: {temp.Count()}]");
+        }
+    }
+}