package com.moral.api.service.impl;

import java.util.ArrayList;
import java.util.Comparator;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.moral.api.entity.Menu;
import com.moral.api.entity.User;

import com.moral.api.mapper.GroupMapper;
import com.moral.api.mapper.MenuMapper;
import com.moral.api.mapper.OrganizationMapper;
import com.moral.api.mapper.UserMapper;
import com.moral.api.service.UserService;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.moral.util.AESUtils;
import com.moral.util.MD5Utils;
import com.moral.util.TokenUtils;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;

/**
 * <p>
 * 用户表 服务实现类
 * </p>
 *
 * @author moral
 * @since 2021-03-09
 */
@Service
public class UserServiceImpl extends ServiceImpl<UserMapper, User> implements UserService {

    @Autowired
    private UserMapper userMapper;

    @Autowired
    private GroupMapper groupMapper;

    @Autowired
    private MenuMapper menuMapper;

    @Autowired
    private OrganizationMapper organizationMapper;

    @Value("${AES.KEY}")
    private String AESKey;

    @Override
    public Map<String, Object> login(Map<String, Object> parameters) {
        Map<String, Object> resultMap = new LinkedHashMap<>();
        //接收参数
        String account = parameters.get("account").toString();
        String password = parameters.get("password").toString();
        //解密
        account = AESUtils.decrypt(account, AESKey);
        password = AESUtils.decrypt(password, AESKey);
        QueryWrapper<User> queryWrapper = new QueryWrapper<>();
        //校验账户
        queryWrapper.eq("account", account);
        User user = userMapper.selectOne(queryWrapper);
        String msg;
        if (user == null) {
            msg = "用户名不存在";
        } else {
            if (!MD5Utils.saltMD5Verify(password, user.getPassword())) {//校验密码
                msg = "密码错误";
            } else if ("1".equals(user.getIsDelete())) {
                msg = "账户已被删除";
            } else if (user.getExpireTime() != null && user.getExpireTime().getTime() < System.currentTimeMillis()) {
                msg = "你的账户已过期";
            } else {
                int userId = user.getId();
                //查询地图等级
                Map<String, Object> orgMap = organizationMapper.selectOrganizationById(user.getOrganizationId());
                String locationCode = orgMap.get(orgMap.get("location_level").toString()).toString();
                //封装用户信息
                Map<String, Object> userInfo = new LinkedHashMap<>();
                userInfo.put("userId", userId);
                userInfo.put("account", user.getAccount());
                userInfo.put("userName", user.getUserName());
                userInfo.put("organizationId", user.getOrganizationId());
                userInfo.put("locationCode", locationCode);
                List<Map<String, Object>> groups = groupMapper.selectUserGroup(userId);
                userInfo.put("groups", groups);
                userInfo.putAll(getMenus(userId));
                //生成token，并存入redis
                String token = TokenUtils.getToken(user.getId().toString(), userInfo);
                resultMap.put("token", token);
                resultMap.putAll(userInfo);
                return resultMap;
            }
        }
        resultMap.put("msg", msg);
        return resultMap;
    }

    //根据userId获取用户层级菜单
    private Map<String, Object> getMenus(int userId) {
        List<Menu> allMenus = menuMapper.selectUserMenu(userId);
        Map<String, Object> resultMap = new LinkedHashMap<>();
        //第一级菜单
        List<Menu> oneMenu = allMenus.stream()
                .filter(o -> o.getParentId().equals(0))
                .sorted(Comparator.comparing(Menu::getOrder))
                .collect(Collectors.toList());

        List<Map<String, Object>> newList = new ArrayList<>();
        //遍历一级菜单
        oneMenu.forEach(o -> {
            Map<String, Object> menuMap = new LinkedHashMap<>();
            menuMap.put("id", o.getId());
            menuMap.put("name", o.getName());
            menuMap.put("url", o.getUrl());
            menuMap.put("icon", o.getIcon());
            menuMap.put("menus", getMenusByRecursion(o, allMenus));
            newList.add(menuMap);
        });
        resultMap.put("menus", newList);
        return resultMap;
    }

    //获取用户层级菜单递归方法
    private List<Map<String, Object>> getMenusByRecursion(Menu menu, List<Menu> menus) {
        List<List<Map<String, Object>>> resultList = new ArrayList();
        Menu newMenu = new Menu();
        newMenu.setParentId(menu.getId());

        //筛选出下一级菜单信息
        List<Menu> nextLevelMenus = menus.stream()
                .filter(o -> o.getParentId().equals(menu.getId()))
                .collect(Collectors.toList());
        List<Map<String, Object>> list = new ArrayList<>();
        if (nextLevelMenus.size() > 0) {
            //遍历下一级菜单信息，并封装返回参数
            nextLevelMenus.forEach(o -> {
                Map<String, Object> menuMap = new LinkedHashMap<>();
                menuMap.put("id", o.getId());
                menuMap.put("name", o.getName());
                menuMap.put("url", o.getUrl());
                menuMap.put("icon", o.getIcon());
                //调用递归体
                menuMap.put("menus", getMenusByRecursion(o, menus));
                list.add(menuMap);
            });
            resultList.add(list);
        }
        return list;
    }

    @Override
    public Map<String, Object> addUser(User user, Integer userId) {
        Map<String, Object> resultMap = new HashMap<>();
        User currentUser = userMapper.selectById(userId);
        if (!currentUser.getIsAdmin()) {
            resultMap.put("flag", false);
            resultMap.put("msg", "添加失败，没有权限");
            return resultMap;
        }
        QueryWrapper<User> queryWrapper = new QueryWrapper<>();
        queryWrapper.eq("account", user.getAccount());
        userMapper.selectOne(queryWrapper);
        if (userMapper.selectOne(queryWrapper) == null) {
            user.setOrganizationId(currentUser.getOrganizationId());
            user.setExpireTime(currentUser.getExpireTime());
            userMapper.insert(user);
            resultMap.put("flag", true);
            resultMap.put("msg", "添加成功");
        } else {
            resultMap.put("flag", false);
            resultMap.put("msg", "添加失败，账户名已存在");
        }
        return resultMap;
    }

    @Override
    public Map<String, Object> deleteUser(Integer userId, Integer currentUserId) {
        Map<String, Object> resultMap = new HashMap<>();
        User currentUser = userMapper.selectById(currentUserId);
        if (!currentUser.getIsAdmin()) {
            resultMap.put("flag", false);
            resultMap.put("msg", "删除失败，没有权限");
        } else {
            User user = new User();
            user.setId(userId);
            user.setIsDelete("1");
            userMapper.updateById(user);
            resultMap.put("flag", true);
            resultMap.put("msg", "删除成功");
        }
        return resultMap;
    }

    @Override
    public Map<String, Object> updateUser(User user, Integer currentUserId) {
        Map<String, Object> resultMap = new HashMap<>();
        User currentUser = userMapper.selectById(currentUserId);
        if (!currentUser.getIsAdmin()) {
            resultMap.put("flag", false);
            resultMap.put("msg", "修改失败，没有权限");
            return resultMap;
        }
        QueryWrapper<User> queryWrapper = new QueryWrapper<>();
        queryWrapper.eq("account", user.getAccount());
        if (userMapper.selectOne(queryWrapper) == null) {
            userMapper.updateById(user);
            resultMap.put("flag", true);
            resultMap.put("msg", "修改成功");
        } else {
            resultMap.put("flag", false);
            resultMap.put("msg", "修改失败，账户已存在");
        }
        return resultMap;
    }

    @Override
    public List<User> getUsersByOrgId(Integer currentUserId) {
        User currentUser = userMapper.selectById(currentUserId);
        if (!currentUser.getIsAdmin()) {
            return null;
        }
        Map<String, Object> queryMap = new HashMap<>();
        queryMap.put("organizationId", currentUser.getOrganizationId());
        return userMapper.selectByMap(queryMap);
    }

    @Override
    public User getUserById(Integer userId, Integer currentUserId) {
        User currentUser = userMapper.selectById(currentUserId);
        if (!currentUser.getIsAdmin()) {
            return null;
        }
        return userMapper.selectById(userId);
    }
}