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

Hermes/Socket/Requests/UpdateTTSUserAck.cs

@@ -0,0 +1,58 @@
+using Serilog;
+
+namespace TwitchChatTTS.Hermes.Socket.Requests
+{
+    public class UpdateTTSUserAck : IRequestAck
+    {
+        public string Name => "update_tts_user";
+        private readonly User _user;
+        private readonly ILogger _logger;
+
+        public UpdateTTSUserAck(User user, ILogger logger)
+        {
+            _user = user;
+            _logger = logger;
+        }
+
+        public void Acknowledge(string requestId, string json, IDictionary<string, object>? requestData)
+        {
+            if (requestData == null)
+            {
+                _logger.Warning("Request data is null.");
+                return;
+            }
+
+            if (!long.TryParse(requestData["chatter"].ToString(), out long chatterId))
+            {
+                _logger.Warning($"Failed to parse chatter id [chatter id: {requestData["chatter"]}]");
+                return;
+            }
+            if (chatterId <= 0)
+            {
+                _logger.Warning("Chatter Id is invalid.");
+                return;
+            }
+
+            var userId = requestData["user"].ToString();
+            var voiceId = requestData["voice"].ToString();
+            if (string.IsNullOrEmpty(userId))
+            {
+                _logger.Warning("User Id is invalid.");
+                return;
+            }
+            if (string.IsNullOrEmpty(voiceId))
+            {
+                _logger.Warning("Voice Id is invalid.");
+                return;
+            }
+            if (!_user.VoicesAvailable.TryGetValue(voiceId, out var voiceName))
+            {
+                _logger.Warning("Voice Id does not exist.");
+                return;
+            }
+
+            _user.VoicesSelected[chatterId] = voiceId;
+            _logger.Information($"Updated a TTS user's voice [user id: {userId}][voice: {voiceId}][voice name: {voiceName}]");
+        }
+    }
+}