package com.gunshi.project.ss.service;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.gunshi.project.ss.common.mapper.StPptnRMapper;
import com.gunshi.project.ss.common.model.StPptnR;
import com.gunshi.project.ss.entity.so.RealRainBaseSo;
import com.gunshi.project.ss.entity.vo.RealRainListVo;
import com.gunshi.project.ss.entity.vo.RealRainStatListVo;
import com.gunshi.project.ss.mapper.RealRainMapper;
import com.gunshi.project.ss.model.AttBasBase;
import com.gunshi.project.ss.model.AttBasBaseAutoDao;
import com.gunshi.project.ss.util.DateUtil;
import lombok.Data;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.collections4.CollectionUtils;
import org.apache.commons.compress.utils.Lists;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.*;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;
import java.util.stream.Collectors;

/**
 * Description:
 * Created by wanyan on 2024/7/8
 *
 * @author wanyan
 * @version 1.0
 */
@Service
@Data
@Slf4j
public class RealRainService {

    @Autowired
    private RealRainMapper realRainMapper;

    private final AttBasBaseAutoDao attBasBaseAutoDao;

    @Autowired
    private StPptnRMapper stPptnRMapper;

    /**
     * 实时雨情-降雨信息-查询接口
     *
     * @param realRainBaseSo
     * @return
     */
    public List<RealRainListVo> getRealRainList(RealRainBaseSo realRainBaseSo) {
        List<RealRainListVo> result = realRainMapper.getRealRainList(realRainBaseSo.getStm(), realRainBaseSo.getEtm());

        for (RealRainListVo realRainListVo : result) {
            LambdaQueryWrapper<StPptnR> queryWrapper = new LambdaQueryWrapper<>();
            queryWrapper.eq(StPptnR::getStcd,realRainListVo.getStcd())
                    .orderByDesc(StPptnR::getTm)
                    .last("limit 1");
            StPptnR stPptnR = stPptnRMapper.selectOne(queryWrapper);
            if(stPptnR == null){
                realRainListVo.setStatus(0);
            }else{
                Date tm = stPptnR.getTm();
                if(DateUtil.hoursBetweenDate(tm,new Date()) > 24){
                    realRainListVo.setStatus(0);
                }else{
                    realRainListVo.setStatus(1);
                }
            }
        }

       // result.sort(Comparator.comparing(RealRainListVo::getDrp, Comparator.nullsFirst(Double::compareTo)).reversed().thenComparing(RealRainListVo::getStcd));
        return result;
    }


    /**
     * 频率统计
     */
    public Map<Integer, List<RealRainStatListVo>> getRealRainStatLevel(RealRainBaseSo realRainBaseSo) {

        Map<Integer, List<RealRainStatListVo>> map = new HashMap<>();
        for (int i = 1; i <= 5; i++) {
            if (map.get(i) == null) {
                map.put(i, Lists.newArrayList());
            }
        }


        if (realRainBaseSo.getSource().size() == 0) {
            return map;
        }

        List<RealRainStatListVo> result = getRealRainStat(realRainBaseSo);
        //判断result是否为空
        if (CollectionUtils.isEmpty(result)) {
            return map;
        }

        //按照降雨量级进行分组
        if (realRainBaseSo.getTimeType() == null) {
            result = result.stream().filter(res -> res.getFreqH1() != 0).collect(Collectors.toList());
            map = result.stream().collect(
                    Collectors.groupingBy(RealRainStatListVo::getFreqH1, Collectors.toList())
            );
        }
        if (realRainBaseSo.getTimeType() == 3) {
            result = result.stream().filter(res -> res.getFreqH3() != 0).collect(Collectors.toList());
            map = result.stream().collect(
                    Collectors.groupingBy(RealRainStatListVo::getFreqH3, Collectors.toList())
            );
        } else if (realRainBaseSo.getTimeType() == 6) {
            result = result.stream().filter(res -> res.getFreqH6() != 0).collect(Collectors.toList());
            map = result.stream().collect(
                    Collectors.groupingBy(RealRainStatListVo::getFreqH6, Collectors.toList())
            );
        } else if (realRainBaseSo.getTimeType() == 12) {
            result = result.stream().filter(res -> res.getFreqH12() != 0).collect(Collectors.toList());
            map = result.stream().collect(
                    Collectors.groupingBy(RealRainStatListVo::getFreqH12, Collectors.toList())
            );
        } else if (realRainBaseSo.getTimeType() == 24) {
            result = result.stream().filter(res -> res.getFreqH24() != 0).collect(Collectors.toList());
            map = result.stream().collect(
                    Collectors.groupingBy(RealRainStatListVo::getFreqH24, Collectors.toList())
            );
        } else {
            result = result.stream().filter(res -> res.getFreqH1() != 0).collect(Collectors.toList());
            map = result.stream().collect(
                    Collectors.groupingBy(RealRainStatListVo::getFreqH1, Collectors.toList())
            );
        }

        for (int i = 1; i <= 5; i++) {
            if (!map.containsKey(i)) {
                map.put(i, Lists.newArrayList());
            }
        }

        for (int i = 1; i <= 5; i++) {
            if (map.get(i) == null) {
                map.put(i, Lists.newArrayList());
            }
        }

        return map;

    }

    /**
     * 频率分析
     *
     * @param realRainBaseSo
     */
    public List<RealRainStatListVo> getRealRainStat(RealRainBaseSo realRainBaseSo) {
        List<RealRainStatListVo> result = Lists.newArrayList();

        if (realRainBaseSo.getSource().size() == 0) {
            return result;
        }

        checkParam(realRainBaseSo);
        List<String> source = realRainBaseSo.getSource();
        ExecutorService executorService = Executors.newFixedThreadPool(4);
        for (String sourceStr : source) {
            executorService.execute(() -> {
                List<RealRainStatListVo> realRainList = realRainMapper.getRealRainStatList(
                        realRainBaseSo.getAdcd(), realRainBaseSo.getBasCode(), sourceStr,
                        realRainBaseSo.getStm(), realRainBaseSo.getEtm()
                );
                result.addAll(realRainList);
            });
        }
        executorService.shutdown();
        try {
            executorService.awaitTermination(2, TimeUnit.MINUTES);
        } catch (InterruptedException e) {
            Thread.currentThread().interrupt();
            log.error(e.getMessage(), e);
        }
        return result;
    }

    /**
     * 流域选择列表
     *
     * @param
     */
    public List<AttBasBase> queryBasNameList() {
        return attBasBaseAutoDao.list();
    }


    private void checkParam(RealRainBaseSo realRainBaseSo) {
        if (Objects.nonNull(realRainBaseSo.getQueryType()) && realRainBaseSo.getQueryType() == 2 && realRainBaseSo.getTimeType() == null) {
            throw new IllegalArgumentException("频率统计中时间段范围类型不能为空");
        }
        //检查source是否为空
        if (realRainBaseSo.getSource() == null || realRainBaseSo.getSource().isEmpty()) {
            throw new IllegalArgumentException("来源不能为空");
        }
        //检查source字段是否合法
        for (String source : realRainBaseSo.getSource()) {
            if (!"SH".equals(source) && !"SW".equals(source) && !"SK".equals(source) && !"QX".equals(source)) {
                throw new IllegalArgumentException("来源只能是SH SW SK QX这4种");
            }
        }
    }
}