package de.ph87.tools.group;

import de.ph87.tools.user.User;
import lombok.NonNull;
import org.springframework.data.repository.ListCrudRepository;

import java.util.List;
import java.util.Optional;
import java.util.Set;

public interface GroupRepository extends ListCrudRepository<Group, String> {

  @NonNull
  Optional<Group> findByUuid(@NonNull String uuid);

  @NonNull
  List<Group> findAllByOwner(@NonNull User user);

  @NonNull
  Set<Group> findAllByUsersContains(@NonNull User user);

  @NonNull
  Set<Group> findAllByUsersContainsAndUsersContains(@NonNull User a, @NonNull User b);

}