Show alert for openSAP birthday voucher

xikolo-common/Data/Helper/UserProfileHelper.swift

@@ -103,6 +103,9 @@ open class UserProfileHelper {
 
         DispatchQueue.main.async {
             NotificationCenter.default.post(name: NotificationKeys.loginStateChangedKey, object: nil)
+            #if OPENSAP
+            AppDelegate.instance().checkForVoucher()
+            #endif
         }
     }
 

xikolo-ios/AppDelegate.swift

@@ -6,6 +6,7 @@
 //  Copyright © 2015 HPI. All rights reserved.
 //
 
+import BrightFutures
 import Firebase
 import UIKit
 import SDWebImage
@@ -94,6 +95,9 @@ class AppDelegate : AbstractAppDelegate {
 
     func applicationDidBecomeActive(_ application: UIApplication) {
         // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
+        #if OPENSAP
+        self.checkForVoucher()
+        #endif
     }
 
     override func applicationWillTerminate(_ application: UIApplication) {
@@ -159,3 +163,81 @@ extension AppDelegate : AbstractLoginViewControllerDelegate {
         self.tabBarController?.selectedIndex = 0
     }
 }
+
+#if OPENSAP
+extension AppDelegate {
+
+    func checkForVoucher() {
+        self.requestVoucher().onSuccess { awarded in
+            guard awarded else { return }
+
+            let title = "It's our fifth anniversary"
+            let message = "You've earned a free openSAP reactivation code! Your code and more details will be delivered to your inbox shortly."
+            let alert = UIAlertController(title: title, message: message, preferredStyle: .alert)
+            alert.addAction(UIAlertAction(title: "Thanks", style: .default))
+            self.tabBarController?.present(alert, animated: true)
+        }
+    }
+
+    func requestVoucher() -> Future<Bool, XikoloError> {
+        let promise = Promise<Bool, XikoloError>()
+
+        let urlString = Routes.API_V2_URL + "/osap_5th_birthday.json"
+        guard let url = URL(string: urlString) else {
+            promise.failure(.invalidURL(urlString))
+            return promise.future
+        }
+
+        var request = URLRequest(url: url)
+        request.httpMethod = "GET"
+
+        request.setValue(Routes.HEADER_USER_PLATFORM_VALUE, forHTTPHeaderField: Routes.HEADER_USER_PLATFORM)
+        for (key, value) in NetworkHelper.getRequestHeaders() {
+            request.setValue(value, forHTTPHeaderField: key)
+        }
+
+        let task = URLSession.shared.dataTask(with: request) { data, response, error in
+            if let err = error {
+                promise.failure(.network(err))
+                return
+            }
+
+            guard let urlResponse = response as? HTTPURLResponse else {
+                promise.failure(.api(.invalidResponse))
+                return
+            }
+
+            guard 200 ... 299 ~= urlResponse.statusCode else {
+                promise.failure(.api(.responseError(statusCode: urlResponse.statusCode, headers: urlResponse.allHeaderFields)))
+                return
+            }
+
+            guard let responseData = data else {
+                promise.failure(.api(.noData))
+                return
+            }
+
+            do {
+                guard let json = try JSONSerialization.jsonObject(with: responseData, options: []) as? [String: Any] else {
+                    promise.failure(.api(.serializationError(.invalidDocumentStructure)))
+                    return
+                }
+
+                guard let voucher = json["voucher"] as? String else {
+                    promise.failure(.invalidData)
+                    return
+                }
+
+                return promise.success(voucher == "awarded")
+            } catch {
+                promise.failure(.api(.serializationError(.jsonSerializationError(error))))
+            }
+        }
+
+        task.resume()
+
+        return promise.future
+    }
+
+}
+#endif