/**
 * Copyright (c) 2016-2019 人人开源 All rights reserved.
 * <p>
 * https://www.renren.io
 * <p>
 * 版权所有，侵权必究！
 */

package io.renren.modules.sys.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import io.renren.common.exception.RRException;
import io.renren.common.utils.Constant;
import io.renren.common.utils.PageUtils;
import io.renren.common.utils.Query;
import io.renren.modules.sys.dao.SysUserDao;
import io.renren.modules.sys.entity.SysDeptEntity;
import io.renren.modules.sys.entity.SysUserEntity;
import io.renren.modules.sys.service.*;
import org.apache.commons.lang.RandomStringUtils;
import org.apache.commons.lang.StringUtils;
import org.apache.shiro.crypto.hash.Sha256Hash;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Lazy;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.Arrays;
import java.util.Date;
import java.util.List;
import java.util.Map;


/**
 * 系统用户
 *
 * @author Mark 735032128@qq.com
 */
@Service("sysUserService")
public class SysUserServiceImpl extends ServiceImpl<SysUserDao, SysUserEntity> implements SysUserService {
    @Autowired
    private SysUserRoleService sysUserRoleService;
    @Autowired
    private SysUserPlantService sysUserPlantService;

    @Lazy  // 延迟注入，破坏循环依赖
    @Autowired
    private SysRoleService sysRoleService;
    @Autowired
    private SysDeptService sysDeptService;

    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        String username = (String) params.get("username");
        Long createUserId = (Long) params.get("createUserId");

        IPage<SysUserEntity> page = this.page(
                new Query<SysUserEntity>().getPage(params),
                new QueryWrapper<SysUserEntity>()
                        .like(StringUtils.isNotBlank(username), "username", username)
                        .eq(createUserId != null, "create_user_id", createUserId)
        );
        for (SysUserEntity sysUserEntity : page.getRecords()) {
            SysDeptEntity sysDeptEntity = sysDeptService.getById(sysUserEntity.getDeptId());
            sysUserEntity.setDeptName(sysDeptEntity.getName());
        }

        return new PageUtils(page);
    }

    @Override
    public List<String> queryAllPerms(Long userId) {
        return baseMapper.queryAllPerms(userId);
    }

    @Override
    public List<Long> queryAllMenuId(Long userId) {
        return baseMapper.queryAllMenuId(userId);
    }

    @Override
    public SysUserEntity queryByUserName(String username) {
        return baseMapper.queryByUserName(username);
    }

    @Override
    public SysUserEntity queryByMail(String mail) {
        return baseMapper.queryByMail(mail);
    }

    @Override
    public SysUserEntity queryByUserId(Long userId) { return baseMapper.queryByUserId(userId); }

    @Override
    @Transactional
    public void saveUser(SysUserEntity user) {
        user.setCreateTime(new Date());
        //sha256加密
        String salt = RandomStringUtils.randomAlphanumeric(20);
        user.setPassword(new Sha256Hash(user.getPassword(), salt).toHex());
        user.setSalt(salt);
        this.save(user);

        //检查角色是否越权
        checkRole(user);

        //保存用户与角色关系
        sysUserRoleService.saveOrUpdate(user.getUserId(), user.getRoleIdList());
        //保存用户与装置关系
        sysUserPlantService.saveOrUpdate(user.getUserId(), user.getPlantIdList());
    }

    @Override
    @Transactional
    public void update(SysUserEntity user) {
        if (StringUtils.isBlank(user.getPassword())) {
            user.setPassword(null);
        } else {
            user.setPassword(new Sha256Hash(user.getPassword(), user.getSalt()).toHex());
        }
        this.updateById(user);

        //检查角色是否越权
        checkRole(user);

        //保存用户与角色关系
        sysUserRoleService.saveOrUpdate(user.getUserId(), user.getRoleIdList());
        //保存用户与装置关系
        sysUserPlantService.saveOrUpdate(user.getUserId(), user.getPlantIdList());
    }

    @Override
    public void deleteBatch(Long[] userId) {
        this.removeByIds(Arrays.asList(userId));
    }

    @Override
    public boolean updatePassword(Long userId, String password, String newPassword) {
        SysUserEntity userEntity = new SysUserEntity();
        userEntity.setPassword(newPassword);
        return this.update(userEntity,
                new QueryWrapper<SysUserEntity>().eq("user_id", userId).eq("password", password));
    }

    @Override
    public boolean forgetPassword(String username, String newPassword) {
        SysUserEntity userEntity = new SysUserEntity();
        userEntity.setPassword(newPassword);
        return this.update(userEntity,
                new QueryWrapper<SysUserEntity>().eq("USERNAME", username));
    }

    /**
     * 检查角色是否越权
     */
    private void checkRole(SysUserEntity user) {
        if (user.getRoleIdList() == null || user.getRoleIdList().size() == 0) {
            return;
        }
        //如果不是超级管理员，则需要判断用户的角色是否自己创建
        if (user.getCreateUserId() == Constant.SUPER_ADMIN) {
            return;
        }

        //查询用户创建的角色列表
        List<Long> roleIdList = sysRoleService.queryRoleIdList(user.getCreateUserId());

        //判断是否越权
        if (!roleIdList.containsAll(user.getRoleIdList())) {
            throw new RRException("新增用户所选角色，不是本人创建");
        }
    }
}