package com.moral.api.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.moral.api.entity.Menu;
import com.moral.api.entity.MonitorPoint;
import com.moral.api.entity.SysArea;
import com.moral.api.mapper.MonitorPointMapper;
import com.moral.api.mapper.SysAreaMapper;
import com.moral.api.service.SysAreaService;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.moral.constant.Constants;

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

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

/**
 * <p>
 * 系统区域表 服务实现类
 * </p>
 *
 * @author moral
 * @since 2021-04-07
 */
@Service
public class SysAreaServiceImpl extends ServiceImpl<SysAreaMapper, SysArea> implements SysAreaService {

    @Autowired
    private SysAreaMapper sysAreaMapper;

    @Autowired
    private MonitorPointMapper monitorPointMapper;

    @Override
    public List<Map<String, Object>> getMapPath(Integer orgId) {
        //根据组织id查询所有站点
        QueryWrapper<MonitorPoint> queryWrapper = new QueryWrapper<>();
        queryWrapper.select("province_code", "city_code", "area_code")
                .eq("organization_id", orgId)
                .eq("is_delete", Constants.NOT_DELETE);
        List<MonitorPoint> monitorPoints = monitorPointMapper.selectList(queryWrapper);
        Set<Integer> cityCodes = new HashSet<>();
        for (MonitorPoint monitorPoint : monitorPoints) {
            cityCodes.add(monitorPoint.getProvinceCode());
            cityCodes.add(monitorPoint.getCityCode());
            cityCodes.add(monitorPoint.getAreaCode());
        }

        QueryWrapper<SysArea> sysAreaQueryWrapper = new QueryWrapper<>();
        sysAreaQueryWrapper.select("area_code", "area_name", "parent_code").in("area_code", cityCodes);
        List<SysArea> allAreas = sysAreaMapper.selectList(sysAreaQueryWrapper);

        //第一级城市
        List<SysArea> oneSysArea = allAreas.stream()
                .filter(o -> o.getParentCode().equals(0))
                .sorted(Comparator.comparing(SysArea::getAreaCode))
                .collect(Collectors.toList());

        List<Map<String, Object>> newList = new ArrayList<>();
        //遍历一级菜单
        oneSysArea.forEach(o -> {
            Map<String, Object> sysAreaMap = new LinkedHashMap<>();
            sysAreaMap.put("provinceCode", o.getAreaCode());
            sysAreaMap.put("provinceName", o.getAreaName());
            sysAreaMap.put("cities", getAreasByRecursion(o, allAreas));
            newList.add(sysAreaMap);
        });
        return newList;
    }

    //获取用户层级菜单递归方法
    private List<Map<String, Object>> getAreasByRecursion(SysArea sysArea, List<SysArea> sysAreas) {
        SysArea newSysArea = new SysArea();
        newSysArea.setParentCode(sysArea.getAreaCode());
        //筛选出下一级城市信息
        List<SysArea> nextLevel = sysAreas.stream()
                .filter(o -> o.getParentCode().equals(sysArea.getAreaCode()))
                .collect(Collectors.toList());
        List<Map<String, Object>> list = new ArrayList<>();

        if (nextLevel.size() > 0) {
            nextLevel.forEach(o -> {
                Map<String, Object> sysMap = new LinkedHashMap<>();
                if (o.getAreaCode().toString().endsWith("00")) {
                    sysMap.put("cityCode", o.getAreaCode());
                    sysMap.put("cityName", o.getAreaName());
                    sysMap.put("provinceCode", o.getParentCode());
                    sysMap.put("areas", getAreasByRecursion(o, sysAreas));
                } else {
                    sysMap.put("areaCode", o.getAreaCode());
                    sysMap.put("areaName", o.getAreaName());
                    sysMap.put("cityCode", o.getParentCode());
                }
                list.add(sysMap);
            });
        }
        return list;
    }
}