package kr.wisestone.owl.service.impl;

import com.google.common.base.Predicate;
import com.google.common.collect.Iterables;
import com.google.common.collect.Lists;
import kr.wisestone.owl.domain.Permission;
import kr.wisestone.owl.domain.User;
import kr.wisestone.owl.repository.PermissionRepository;
import kr.wisestone.owl.service.PermissionService;
import kr.wisestone.owl.util.ConvertUtil;
import kr.wisestone.owl.vo.PermissionVo;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import java.util.List;

@Service
public class PermissionServiceImpl extends AbstractServiceImpl<Permission, Long, JpaRepository<Permission, Long>> implements PermissionService {

    private static final Logger log = LoggerFactory.getLogger(PermissionServiceImpl.class);

    @Autowired
    private PermissionRepository permissionRepository;

    @Override
    protected JpaRepository<Permission, Long> getRepository() {
        return this.permissionRepository;
    }

    @Override
    @Transactional(readOnly = true)
    public List<PermissionVo> findByUserId() {

        User user = this.webAppUtil.getLoginUserObject();

        List<PermissionVo> allPermission = ConvertUtil.convertObjectsToClasses(this.permissionRepository.findAll(), PermissionVo.class);
        List<PermissionVo> userPermissions = Lists.newArrayList();

        if (user != null) {
            userPermissions.addAll(ConvertUtil.convertObjectsToClasses(this.permissionRepository.findByUserId(user.getId()), PermissionVo.class));
        }

        this.setPermissionActiveYn(allPermission, userPermissions);

        return allPermission;
    }

    @Override
    @Transactional(readOnly = true)
    public List<Permission> findByRoleType(String roleType) {
        return this.permissionRepository.findByRoleType(roleType);
    }

    private void setPermissionActiveYn(List<PermissionVo> allPermissionVos, List<PermissionVo> userPermissionVos) {
        for (PermissionVo permissionVo : allPermissionVos) {

            final Long permissionId = permissionVo.getId();

            PermissionVo userPermission = Iterables.find(userPermissionVos, new Predicate<PermissionVo>() {
                @Override
                public boolean apply(PermissionVo input) {
                    return input.getId().equals(permissionId);
                }
            }, null);

            if (userPermission != null) {
                permissionVo.setActiveYn(Boolean.TRUE);
            }

        }
    }
}