BRV-174: update for error message and update state

Author: tungntEmotiv

Src/Authorizer.cs

@@ -180,6 +180,8 @@ public void Logout() {
         /// Retry authorization process
         /// </summary>
         public void RetryAuthorize() {
+            // back to authorizing state
+            ConnectServiceStateChanged(this, ConnectToCortexStates.Authorizing);
             _ctxClient.Authorize(_licenseID, _debitNo);
         }
 

Src/DataStreamManager.cs

@@ -679,11 +679,6 @@ public ConnectToCortexStates GetConnectToCortexState()
             return _dsProcess.GetConnectToCortexState();
         }
 
-        public string GetConnectToCortexWarningMessage()
-        {
-            return _dsProcess.GetConnectToCortexWarningMessage();
-        }
-
         //=== Device data ===
         /// <summary>
         /// Get battery level.

Src/DataStreamProcess.cs

@@ -19,7 +19,6 @@ public class DataStreamProcess
         private SessionHandler _sessionHandler  = SessionHandler.Instance;
 
         ConnectToCortexStates _connectCortexState = ConnectToCortexStates.Service_connecting;
-        string _connectCortexWarningMessage = "";
 
         // Event
         public event EventHandler<ArrayList> MotionDataReceived;      // motion data
@@ -93,8 +92,6 @@ public event EventHandler<List<MentalStateModel>> QueryDayDetailOfConsumerDataDo
 
         public ConnectToCortexStates GetConnectToCortexState() => _connectCortexState;
 
-        public string GetConnectToCortexWarningMessage() => _connectCortexWarningMessage;
-
         public DataStreamProcess() 
         {
         }
@@ -322,7 +319,6 @@ private void MessageErrorRecieved(object sender, ErrorMsgEventArgs errorInfo)
                 _sessionHandler.ClearSessionData();
                 CreateSessionFail(this, message);
             }
-            _connectCortexWarningMessage = message;
             // ErrorNotify(this, message);
         }
 

Src/EmotivUnityItf.cs

@@ -108,6 +108,9 @@ public class EmotivUnityItf
         public Record RecentRecord { get => _recentRecord; set => _recentRecord = value; }
         public bool IsSupportedDeviceForProfile { get => _isSupportedDeviceForProfile; set => _isSupportedDeviceForProfile = value; }
 
+        // Events
+        public event EventHandler<ErrorMsgEventArgs> ErrorMsgReceived;
+
         /// <summary>
         /// Gets the current Emotiv ID of the logged-in user.
         /// </summary>
@@ -1094,6 +1097,8 @@ private void MessageErrorRecieved(object sender, ErrorMsgEventArgs errorInfo)
             int errorCode   = errorInfo.Code;
 
             _messageLog = "Get Error: errorCode " + errorCode.ToString() + ", message: " + message + ", API: " + method;  
+            // Emit the error message event
+            ErrorMsgReceived?.Invoke(this, errorInfo);
         }
 
         private void OnStreamStopNotify(object sender, List<string> streams)