move isAlready...Flag to solutionsrepo

service/src/main/java/com/telephoners/krakyournet/ctf/repositories/SolutionsRepository.java

@@ -44,7 +44,7 @@ public class SolutionsRepository extends Repository<Solution>
                 ));
     }
 
-    public boolean exists(Solution solution)
+    public boolean isAlreadySubmittedSolution(Solution solution)
     {
         return datastore.find(Solution.class)
                 .filter("flag.value", solution.getFlag().getValue())

service/src/main/java/com/telephoners/krakyournet/ctf/repositories/TasksRepository.java

@@ -90,11 +90,6 @@ public class TasksRepository extends Repository<Task>
         return Hex.encodeHexString(messageDigest.digest(combinedStrings.getBytes()));
     }
 
-    private boolean isAlreadySubmittedSolution(Solution solution)
-    {
-        return solutionsRepository.exists(solution);
-    }
-
     public boolean checkHash(User user, String hashValue, int taskLevel)
     {
         //todo: refactor
@@ -110,7 +105,7 @@ public class TasksRepository extends Repository<Task>
         if (team.isPresent()) {
             //todo: combine ifs
             Solution solution = new Solution(team.get(), task, flag, hashValue);
-            if (!isAlreadySubmittedSolution(solution)) {
+            if (!solutionsRepository.isAlreadySubmittedSolution(solution)) {
                 solutionsRepository.add(solution);
                 return true;
             }