cleanup

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

 package com.telephoners.krakyournet.ctf.repositories;
 
-import com.google.inject.name.Named;
 import com.telephoners.krakyournet.ctf.beans.Flag;
 import com.telephoners.krakyournet.ctf.beans.User;
 import com.telephoners.krakyournet.ctf.beans.tasks.Task;
-import com.telephoners.krakyournet.ctf.core.ApplicationConfiguration;
 import com.telephoners.krakyournet.ctf.core.HashValidator;
 import com.telephoners.krakyournet.ctf.helpers.DBObjectUtils;
 import javafx.util.Pair;
@@ -12,7 +10,6 @@ import org.mongodb.morphia.Datastore;
 
 import javax.inject.Inject;
 import javax.inject.Singleton;
-import java.security.MessageDigest;
 import java.util.List;
 import java.util.Map;
 import java.util.stream.Collectors;
@@ -20,29 +17,19 @@ import java.util.stream.Collectors;
 @Singleton
 public class TasksRepository extends Repository<Task>
 {
-    private ApplicationConfiguration applicationConfiguration;
     private Datastore datastore;
-    private TeamsRepository teamsRepository;
-    private SolutionsRepository solutionsRepository;
     private UsersRepository usersRepository;
     private HashValidator hashValidator;
-    private MessageDigest messageDigest;
 
     @Inject
-    public TasksRepository(ApplicationConfiguration applicationConfiguration, Datastore datastore,
-                           TeamsRepository teamsRepository, SolutionsRepository solutionsRepository,
+    public TasksRepository(Datastore datastore,
                            UsersRepository usersRepository,
-                           HashValidator hashValidator,
-                           final @Named("messageDigest") MessageDigest messageDigest)
+                           HashValidator hashValidator)
     {
         super(datastore);
-        this.applicationConfiguration = applicationConfiguration;
         this.datastore = datastore;
-        this.teamsRepository = teamsRepository;
-        this.solutionsRepository = solutionsRepository;
         this.usersRepository = usersRepository;
         this.hashValidator = hashValidator;
-        this.messageDigest = messageDigest;
     }
 
     public Task getByLevel(int level)
@@ -72,7 +59,6 @@ public class TasksRepository extends Repository<Task>
 
     public Pair<Task, Flag> getTaskFlagPairByHashValue(User user, String userHash, int taskLevel)
     {
-        String username = user.getName();
         Flag matchedFlag = getByLevel(taskLevel).getFlags().stream()
                 .filter(flag -> hashValidator.calculateHashValue(user, flag.getValue()).equals(userHash))
                 .findFirst()