package isa.qa.service.impl;

import isa.qa.dao.RoleDao;
import isa.qa.dto.request.RoleRequestDTO;
import isa.qa.entity.Role;
import isa.qa.service.RoleService;
import lombok.AllArgsConstructor;
import org.springframework.stereotype.Service;
import org.springframework.transaction.TransactionException;
import org.springframework.transaction.annotation.Transactional;

import java.time.Instant;
import java.util.Date;
import java.util.List;
import java.util.Map;

import static isa.qa.utils.ArgumentCheckUtils.checkNonNull;
import static isa.qa.utils.ResultMapUtils.genIdResultMap;
import static isa.qa.utils.ResultMapUtils.genUpdateResultMap;
import static java.lang.Boolean.TRUE;

/**
 * Role service implement
 *
 * @author May
 * @version 1.0
 * @date 2018/11/22 9:17
 */
@Service
@AllArgsConstructor
public class RoleServiceImpl implements RoleService {

    private final RoleDao roleDao;

    @Override
    public List<Role> listRole() {
        return roleDao.findAll();
    }

    @Override
    @Transactional(rollbackFor = TransactionException.class)
    public Map<String, Long> saveRole(RoleRequestDTO roleRequestDTO) {
        Role role = new Role();

        role.setName(roleRequestDTO.getName());
        role.setCreatedTime(Date.from(Instant.now()));

        roleDao.save(role);

        return genIdResultMap("roleId", role.getId());
    }

    @Override
    @Transactional(rollbackFor = TransactionException.class)
    public Map<String, Boolean> updateRole(Long id, RoleRequestDTO roleRequestDTO) {
        Role role = roleDao.getOne(id);
        checkNonNull(role, "未找到对应的角色");

        role.setName(roleRequestDTO.getName());
        roleDao.save(role);

        return genUpdateResultMap("isSuccess", TRUE);
    }

    @Override
    @Transactional(rollbackFor = TransactionException.class)
    public Map<String, Boolean> removeRole(Long id) {
        Role role = roleDao.getOne(id);
        checkNonNull(role, "未找到对应的角色");
        //TODO 校验拥有该角色的用户是否存在，存在则不能删除

        roleDao.delete(role);
        return genUpdateResultMap("isSuccess", TRUE);
    }
}