package com.moral.api.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.moral.api.entity.ManageMenu;
import com.moral.api.entity.ManageRole;
import com.moral.api.mapper.ManageMenuMapper;
import com.moral.api.mapper.ManageRoleMenuMapper;
import com.moral.api.service.ManageMenuService;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.moral.constant.ResponseCodeEnum;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.ObjectUtils;

import javax.annotation.Resource;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.function.Predicate;

/**
 * <p>
 * 后台菜单 服务实现类
 * </p>
 *
 * @author moral
 * @since 2021-03-09
 */
@Service
public class ManageMenuServiceImpl extends ServiceImpl<ManageMenuMapper, ManageMenu> implements ManageMenuService {

    @Autowired(required = false)
    private ManageMenuMapper manageMenuMapper;

    @Autowired(required = false)
    private ManageRoleMenuMapper manageRoleMenuMapper;

    @Override
    @Transactional
    public Map<String, Object> insertManageMenu(ManageMenu manageMenu) {
        Map<String, Object> resultMap = new HashMap<>();
        if (manageMenu.getName() == null) {
            resultMap.put("code", ResponseCodeEnum.PARAMETERS_IS_MISSING.getCode());
            resultMap.put("msg", ResponseCodeEnum.PARAMETERS_IS_MISSING.getMsg());
            return resultMap;
        }
        if (manageMenuMapper.getManageMenuByName(manageMenu.getName()) != null) {
            resultMap.put("code", ResponseCodeEnum.MENU_IS_EXPIRE.getCode());
            resultMap.put("msg", ResponseCodeEnum.MENU_IS_EXPIRE.getMsg());
        } else {
            manageMenuMapper.insertOne(manageMenu);
            resultMap.put("code", ResponseCodeEnum.SUCCESS.getCode());
            resultMap.put("msg", ResponseCodeEnum.SUCCESS.getMsg());
        }
        return resultMap;
    }

    @Override
    @Transactional
    public Map<String, Object> updateManageMenu(Map map) {
        Map<String, Object> resultMap = new HashMap<>();
        if (!map.containsKey("id")) {
            resultMap.put("code", ResponseCodeEnum.PARAMETERS_IS_MISSING.getCode());
            resultMap.put("msg", ResponseCodeEnum.PARAMETERS_IS_MISSING.getMsg());
            return resultMap;
        }
        if (manageMenuMapper.getManageMenuById(Integer.parseInt(map.get("id").toString())) == null) {
            resultMap.put("code", ResponseCodeEnum.MENU_IS_NULL.getCode());
            resultMap.put("msg", ResponseCodeEnum.MENU_IS_NULL.getMsg());
        } else {
            manageMenuMapper.updateManageMenuById(map);
            resultMap.put("code", ResponseCodeEnum.SUCCESS.getCode());
            resultMap.put("msg", ResponseCodeEnum.SUCCESS.getMsg());
        }
        return resultMap;
    }

    @Override
    @Transactional
    public Map<String, Object> deleteManageMenu(Map map) {
        Map<String, Object> resultMap = new HashMap<>();
        if (!map.containsKey("id")) {
            resultMap.put("code", ResponseCodeEnum.PARAMETERS_IS_MISSING.getCode());
            resultMap.put("msg", ResponseCodeEnum.PARAMETERS_IS_MISSING.getMsg());
            return resultMap;
        }
        if (manageMenuMapper.getManageMenuById(Integer.parseInt(map.get("id").toString())) == null) {
            resultMap.put("code", ResponseCodeEnum.MENU_IS_NULL.getCode());
            resultMap.put("msg", ResponseCodeEnum.MENU_IS_NULL.getMsg());
        } else {
            Map deleteMap = new HashMap();
            int id = Integer.parseInt(map.get("id").toString());
            deleteMap.put("id", id);
            deleteMap.put("is_delete", 1);
            manageMenuMapper.updateManageMenuById(deleteMap);
            Map role_menuDeleteMap = new HashMap();
            role_menuDeleteMap.put("menu_id", id);
            manageRoleMenuMapper.updateDeleteStateByMenu_id(role_menuDeleteMap);
            resultMap.put("code", ResponseCodeEnum.SUCCESS.getCode());
            resultMap.put("msg", ResponseCodeEnum.SUCCESS.getMsg());
        }
        return resultMap;
    }

    @Override
    public List<ManageMenu> getAllWithPagingQuery(Map map) {
        Map limitMap = new HashMap();
        limitMap.put("start", (Integer.parseInt(map.get("current").toString()) - 1) * Integer.parseInt(map.get("size").toString()));
        limitMap.put("number", Integer.parseInt(map.get("size").toString()));
        List<ManageMenu> manageMenus = manageMenuMapper.getDataWithPage(limitMap);
        System.out.println(manageMenus);
        return manageMenus;
    }

    @Override
    public List<ManageMenu> getManageMenuByNameFuzzy(Map map) {
        Map limitMap = new HashMap();
        limitMap.put("name", map.get("name"));
        limitMap.put("start", (Integer.parseInt(map.get("current").toString()) - 1) * Integer.parseInt(map.get("size").toString()));
        limitMap.put("number", Integer.parseInt(map.get("size").toString()));
        List<ManageMenu> manageMenus = manageMenuMapper.getManageRoleByNameFuzzy(limitMap);
        return manageMenus;
    }

    @Override
    public List<ManageMenu> getParentChildrenMenusByRoles(List<ManageRole> roles) {
        List<ManageMenu> allMenus = manageMenuMapper.getAllMenusByRoles(roles);
        Map<Integer, ManageMenu> menusMap = new HashMap<>();
        for (ManageMenu menu : allMenus) {
            menu.setChildren(new ArrayList<>());//初始化
            menusMap.put(menu.getId(), menu);
        }
        for (ManageMenu menu : allMenus) {
            combinationParentChildrenMenus(menusMap, menu);
        }
        //已经封装好父子菜单，去除parentId不是0的菜单，去除重复
        allMenus.removeIf(new Predicate<ManageMenu>() {
            @Override
            public boolean test(ManageMenu manageMenu) {
                if(manageMenu.getParentId().equals(0))
                    return false;
                return true;
            }
        });
         return allMenus;
    }

    /**
     * @Description: 组合多级菜单
     * @Param: [menuMap, menu]menuMap：key为menuid，value为menu
     * @return: void
     * @Author: 陈凯裕
     * @Date: 2021/4/7
     */
    private void combinationParentChildrenMenus(Map<Integer, ManageMenu> menuMap, ManageMenu menu) {
        Integer parentId = menu.getParentId();
        ManageMenu parentMenu = menuMap.get(parentId);
        if (!ObjectUtils.isEmpty(parentMenu)) {
            parentMenu.getChildren().add(menu);
        }
    }
}