add QuestionnaireEventModel and handle Event

@@ -8,6 +8,7 @@
 import Foundation
 import UIKit
 import WebKit
+import SwiftEventBus
 
 @objc public class CampaignViewController: UIViewController, WKNavigationDelegate, WKScriptMessageHandler {
     @IBOutlet weak var webview: WKWebView!
@@ -31,6 +32,26 @@ import WebKit
         print("=== event callback ===")
         print(message.name, message.body)
         print("=== event callback ===")
+
+        if let event = message.body as? String {
+            let eventArray = event.split(separator: ":")
+            
+            if (eventArray[0] == "event") {
+                if (eventArray[1] == "closeArtwork") {
+                    
+                } else if (eventArray[1] == "addUserTag") {
+                    let questionnaireEvent = swiftApi.QuestionnaireEventModel()
+                    questionnaireEvent._name = String(eventArray[0])
+                    questionnaireEvent._parameter = String(eventArray[1])
+                    SwiftEventBus.post("questionnaire", sender: questionnaireEvent)
+                    
+                    swiftApi().setUserTag(String(eventArray[2]))
+                    
+                } else if (eventArray[1] == "couponRetrieved") {
+                    
+                }
+            }
+        }
     }
 
 }

@@ -21,11 +21,11 @@ public class swiftApi {
     }
     
     public func getUserTag() -> String {
-        return GlobalVariables.userTag
+        return UserDefaults.standard.string(forKey: "userTag") ?? ""
     }
 
     public func setUserTag(_ newUserTag: String) -> Void {
-        GlobalVariables.userTag = newUserTag
+        UserDefaults.standard.set(newUserTag, forKey: "userTag")
     }
     
     public class DFY {
@@ -1640,4 +1640,35 @@ public class swiftApi {
         return GlobalVariables.campaigns
     }
 
+
+    public class QuestionnaireEventModel {
+        private var name: String
+        private var parameter: String
+        
+        
+        public init() {
+            self.name = ""
+            self.parameter = ""
+            
+        }
+        
+        public var _name: String {
+            get { // getter
+                return self.name
+            }
+            set(newValue) { //setter
+                self.name = newValue
+            }
+        }
+        
+        public var _parameter: String {
+            get { // getter
+                return self.parameter
+            }
+            set(newValue) { //setter
+                self.parameter = newValue
+            }
+        }
+    }
+    
 }