package fr.plil.sio.persistence.jpa;
  

  import fr.plil.sio.persistence.api.Group;

  import fr.plil.sio.persistence.api.Right;
  import fr.plil.sio.persistence.api.User;
  import fr.plil.sio.persistence.api.UserService;

  import java.util.List;
  import org.springframework.beans.factory.annotation.Autowired;

  import org.springframework.stereotype.Service;
  
  @Service
  public class UserServiceJpa implements UserService {

      
      @Autowired
      private UserRepository userRepository;
      
      @Autowired
      private GroupRepository groupRepository;
      
      @Autowired
      private RightRepository rightRepository;
      

      @Override
      public User create(String name, String groupName) {

          
          if(name==null || groupName==null){
              throw new IllegalArgumentException("name cannot be null");
          }
          
          Group group = new Group();
          group = groupRepository.findByName(groupName);
          User user = userRepository.findByName(name);
          
          if(group==null){
              throw new IllegalArgumentException("group trouve avec le find by name null");
          }
          
          if(user!=null){
              throw new IllegalStateException("a user with the same name already exists");
          }
          
          user = new User();
          user.setName(name);
          
          if(group!=null)
              user.setGroup(group);
          
          group.getUsers().add(user);
          
          userRepository.save(user);
          
          return user;

      }
  
      @Override
      public boolean delete(String name) {

          if(name == null){
              throw new IllegalArgumentException("name cannot be null");
          }
          User user = findByName(name);
          if(user==null){
              return false;
          }
          userRepository.delete(user.getId());
          return true;

      }
  
      @Override
      public User findByName(String name) {

          if(name==null){
              throw new IllegalArgumentException("name cannot be null");
          }
          return userRepository.findByName(name);

      }
  
      @Override
      public boolean isUserHasRight(String userName, Right right) {

          if(userName==null){
              throw new IllegalArgumentException("userName cannot be null");
          }
          if(right==null){
              throw new IllegalArgumentException("right cannot be null");
          }
          
          if(rightRepository.findByName(right.getName()).size() == 0){
              throw new IllegalArgumentException("right does not exists");
          }
          
          User user = userRepository.findByName(userName);
          Group group = user.getGroup();
          List<Right> list = group.getRights();
          
          if(list.contains(right) || list.contains(right.getParent())){
              return true;
          }
          
          

          return false;
      }
  }