refactor XPushMessage and handle it's side affects ...

Base/XBaseHub.cs

@@ -105,9 +105,9 @@ namespace xPushService.Base {
                 //
                 Actor = actor,
                 Payload = connectionId,
-                Type = XPushType.System,
                 TimeStamp = DateTime.UtcNow,
-                Topic = (int) XPushType.System,
+                Type = XPushType.System.GetStringValue(),
+                Topic =  XPushType.System.GetStringValue(),
                 Action = XBasePushAction.NotifyNewConnection.GetStringValue (),
                 Message = $"a new connection stablished by {connectionId} ...",
             };

Constants/XPushType.cs

@@ -6,9 +6,11 @@ namespace xPushService.Constants {
     /// </summary>
     public enum XPushType {
         /// System Type Notifications Relate Only to System
+        [StringValue("system")]
         System,
 
         /// User Specific Types Of Push Notifications
+        [StringValue("user")]
         User
     }
 

Models/XPushMessage.cs

@@ -7,14 +7,14 @@ namespace xPushService.Models {
         /// Specify the Type of Push Notification ...
         /// </summary>
         /// <value></value>
-        public XPushType Type { get; set; }
+        public string Type { get; set; }
 
         /// <summary>
         /// Specify the Topic of PushNotification ...
         /// NOTE: XPushTopic enum contains default Values and User can Extends it ...
         /// </summary>
         /// <value></value>
-        public int Topic { get; set; }
+        public string Topic { get; set; }
 
         /// <summary>
         /// Specify the Action Name by passing String Values ...