Refactor: Make the sending strategy match the new Notification logic

src/utils/DifferedSendNotificationStrategy.java

@@ -8,14 +8,14 @@ public class DifferedSendNotificationStrategy implements SendNotificationStrateg
     }
 
     @Override
-    public NotificationState send(String message) {
+    public String makeContent(String message) {
         try {
             Thread.sleep(delay);
         } catch (InterruptedException e) {
             System.err.println("Cannot wait for differed strategy");
-            return NotificationState.KO;
+            message = "";
         }
-        System.out.println(message);
-        return NotificationState.SENT;
+
+        return message;
     }
 }

src/utils/FastSendNotificationStrategy.java

@@ -2,8 +2,7 @@ package utils;
 
 public class FastSendNotificationStrategy implements SendNotificationStrategy {
     @Override
-    public NotificationState send(String message) {
-        System.out.println(message);
-        return NotificationState.SENT;
+    public String makeContent(String message) {
+        return message;
     }
 }

src/utils/SecureSendNotificationStrategy.java

@@ -8,8 +8,7 @@ public class SecureSendNotificationStrategy implements SendNotificationStrategy
     }
 
     @Override
-    public NotificationState send(String message) {
-        System.out.println(key+"Flcjsdjknesdlkgjsilkqzfjazio"+message+"kjhsdiuhisehifsdhfiuhsuidhuifhjsid");
-        return NotificationState.SENT;
+    public String makeContent(String message) {
+        return key+"Flcjsdjknesdlkgjsilkqzfjazio"+message+"kjhsdiuhisehifsdhfiuhsuidhuifhjsid";
     }
 }

src/utils/SendNotificationStrategy.java

@@ -1,5 +1,5 @@
 package utils;
 
 public interface SendNotificationStrategy {
-    NotificationState send(String message);
+    String makeContent(String message);
 }