package com.moral.api.service.impl;

import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.moral.api.entity.Device;
import com.moral.api.entity.Sensor;
import com.moral.api.mapper.DeviceMapper;
import com.moral.api.service.DeviceService;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.moral.constant.Constants;
import com.moral.constant.RedisConstants;
import com.moral.util.DateUtils;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Service;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashMap;
import java.util.HashSet;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.Set;
import java.util.TreeMap;
import java.util.stream.Collectors;

/**
 * <p>
 * 设备表 服务实现类
 * </p>
 *
 * @author moral
 * @since 2021-06-28
 */
@Service
public class DeviceServiceImpl extends ServiceImpl<DeviceMapper, Device> implements DeviceService {

    @Autowired
    DeviceMapper deviceMapper;

    @Autowired
    private RedisTemplate redisTemplate;

    @Override
    public List<Device> getDevicesByMonitorPointId(Integer monitorPointId) {
        QueryWrapper<Device> wrapper = new QueryWrapper();
        wrapper.eq("monitor_point_id",monitorPointId);
        wrapper.eq("is_delete", Constants.NOT_DELETE);
        return deviceMapper.selectList(wrapper);
    }

    @Override
    public Map<String, Object> getSensorsByMac(Map<String, Object> params) {
        String[] macs = params.get("macs").toString().split(",");
        List<Map<String, Object>> elementLists = new ArrayList<>();

        for (String mac : macs) {
            //从redis中获取设备因子信息
            Device device = (Device) redisTemplate.opsForHash().get(RedisConstants.DEVICE_INFO, mac);
            List<Sensor> sensors = device.getVersion().getSensors();
            Map<String, Object> map = new HashMap<>();
            for (Sensor sensor : sensors) {
                String sensorCode = sensor.getCode();
                String name = sensor.getName();
                map.put(sensorCode, name);
            }
            elementLists.add(map);
        }

        Map<String, Object> map = elementLists.parallelStream()
                .filter(elementList -> elementList.size() != 0)
                .reduce((a, b) -> {
                    a.keySet().retainAll(b.keySet());
                    return a;
                }).orElse(new HashMap<>());
        return map;
    }

    @Override
    public List<Map<String, Object>> getTrendChartData(Map<String, Object> params) {
        Object type = params.get("type");
        //设备mac
        String[] macs = params.remove("macs").toString().split(",");
        //所选时间
        String[] times = params.remove("times").toString().split(",");
        //因子code
        String sensorCode = params.get("sensorCode").toString();
        String end;
        String timeUnits;
        String dateFormat;

        //返回结果集,time=data
        List<Map<String, Object>> result = new ArrayList<>();

        for (String start : times) {
            Map<String, Object> resultMap = new HashMap<>();

            if ("day".equals(type)) {
                end = DateUtils.getDateAddDay(start, 1);
                timeUnits = "hourly";
                dateFormat = "%k";
            } else if ("month".equals(type)) {
                end = DateUtils.getDateAddMonth(start, 1);
                timeUnits = "daily";
                dateFormat = "%e";
            } else {
                end = DateUtils.getDateAddYear(start, 1);
                timeUnits = "monthly";
                dateFormat = "%c";
            }
            params.put("timeUnits", timeUnits);
            params.put("dateFormat", dateFormat);
            params.put("start", start);
            params.put("end", end);
            params.put("macs", macs);
            //获取多设备指定因子数据
            List<Map<String, Object>> list = deviceMapper.getTrendChartData(params);

            //按time分组
            Map<String, List<Map<String, Object>>> data = list.parallelStream()
                    .collect(Collectors.groupingBy(o -> o.get("time").toString()));

            //TreeMap<String, List<Map<String, Object>>> data = new TreeMap<>(listMap);

            for (Map.Entry<String, List<Map<String, Object>>> entry : data.entrySet()) {
                List<Object> values = new ArrayList<>();
                String time = entry.getKey();
                List<Map<String, Object>> value = entry.getValue();
                if (value.isEmpty()) {
                    continue;
                }
                for (String mac : macs) {
                    boolean flag = false;
                    for (Map<String, Object> map : value) {
                        if (mac.equals(map.get("mac"))) {
                            Object o = map.get(sensorCode);
                            values.add(o);
                            flag = true;
                            break;
                        }
                    }
                    if (!flag) {
                        values.add("");
                    }
                }
                resultMap.put(time, values);
            }
            result.add(resultMap);
        }
        return result;
    }
}