package com.moral.api.service.impl;

import com.alibaba.fastjson.JSONObject;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.moral.api.entity.HistoryDaily;
import com.moral.api.entity.HistoryMonthly;
import com.moral.api.entity.Sensor;
import com.moral.api.mapper.HistoryMonthlyMapper;
import com.moral.api.service.HistoryDailyService;
import com.moral.api.service.HistoryMonthlyService;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.moral.api.service.SensorService;
import com.moral.constant.Constants;
import com.moral.util.AmendUtils;
import com.moral.util.DateUtils;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.ObjectUtils;

import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.OptionalDouble;
import java.util.stream.Collectors;
import java.util.stream.DoubleStream;

/**
 * <p>
 * 月数据 服务实现类
 * </p>
 *
 * @author moral
 * @since 2021-07-01
 */
@Service
public class HistoryMonthlyServiceImpl extends ServiceImpl<HistoryMonthlyMapper, HistoryMonthly> implements HistoryMonthlyService {

    @Autowired
    private HistoryMonthlyMapper historyMonthlyMapper;

    @Autowired
    private SensorService sensorService;

    @Autowired
    private HistoryDailyService historyDailyService;

    @Override
    @Transactional
    public void insertHistoryMonthly() {
        //开始时间，上月1号
        Date start = DateUtils.getFirstDayOfLastMonth();
        //结束时间，本月1号
        Date end = DateUtils.addMonths(start, 1);
        //因子
        QueryWrapper<Sensor> sensorQueryWrapper = new QueryWrapper<>();
        sensorQueryWrapper.select("code").eq("is_delete", Constants.NOT_DELETE);
        List<Object> sensorCodes = sensorService.listObjs(sensorQueryWrapper);

        //获取所有设备日数据
        QueryWrapper<HistoryDaily> historyDailyQueryWrapper = new QueryWrapper<>();
        historyDailyQueryWrapper.ge("time", DateUtils.dateToDateString(start)).lt("time", DateUtils.dateToDateString(end));
        List<Map<String, Object>> weeklyData = historyDailyService.listMaps(historyDailyQueryWrapper);
        if (weeklyData.size() == 0) {
            return;
        }
        //按mac分组
        Map<String, List<Map<String, Object>>> data = weeklyData.parallelStream().collect(Collectors.groupingBy(o -> (String) o.get("mac")));

        //存入数据库的结果集
        List<Map<String, Object>> insertData = new ArrayList<>();

        data.forEach((key, value) -> {
            Map<String, Object> dataMap = new HashMap<>();
            Map<String, Object> jsonMap = new HashMap<>();
            dataMap.put("mac", key);
            dataMap.put("time", start);

            //风向均值计算并修约
            Object windDirAvg = AmendUtils.getWindDirAvg(value);
            if (windDirAvg != null) {
                jsonMap.put(Constants.SENSOR_CODE_WIND_DIR, windDirAvg);
            }

            //CO 95百分位计算并修约
            Object coAvg = AmendUtils.getCOAvgOfWeekOrMonth(value);
            if (coAvg != null) {
                jsonMap.put(Constants.SENSOR_CODE_CO, coAvg);
            }

            //O3 90百分位计算并修约
            Object o3Avg = AmendUtils.getO3AvgOfWeekOrMonth(value);
            if (o3Avg != null) {
                jsonMap.put(Constants.SENSOR_CODE_O3, o3Avg);
            }

            sensorCodes.forEach(sensorCode -> {
                OptionalDouble optionalDouble = value.parallelStream()
                        .flatMapToDouble(v -> {
                            Map<String, Object> dataValue = JSONObject.parseObject((String) v.get("value"), Map.class);
                            Object sensorValue = dataValue.get(sensorCode.toString());
                            if (ObjectUtils.isEmpty(sensorValue)) {
                                return null;
                            }
                            //风向另外计算
                            if (Constants.SENSOR_CODE_WIND_DIR.equals(sensorCode)) {
                                return null;
                            }
                            //CO另外计算
                            if (Constants.SENSOR_CODE_CO.equals(sensorCode)) {
                                return null;
                            }
                            //O3另外计算
                            if (Constants.SENSOR_CODE_O3.equals(sensorCode)) {
                                return null;
                            }
                            return DoubleStream.of(Double.parseDouble(sensorValue.toString()));
                        }).average();
                if (optionalDouble.isPresent()) {
                    //银行家算法修约
                    double sciCal = AmendUtils.sciCal(optionalDouble.getAsDouble(), 4);
                    jsonMap.put(sensorCode.toString(), sciCal);
                }
            });
            dataMap.put("value", JSONObject.toJSONString(jsonMap));
            insertData.add(dataMap);
        });

        //存入数据库
        historyMonthlyMapper.insertHistoryMonthly(insertData);
    }
}