package com.ycl.calculate;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.ycl.platform.domain.entity.CheckIndexCar;
import com.ycl.platform.domain.entity.CheckIndexFace;
import com.ycl.platform.domain.entity.TMonitor;
import com.ycl.platform.domain.result.HK.SnapshotDataMonitorResult;
import com.ycl.platform.mapper.CheckIndexCarMapper;
import com.ycl.platform.mapper.CheckIndexFaceMapper;
import com.ycl.platform.service.ICheckIndexCarService;
import com.ycl.platform.service.ICheckIndexFaceService;
import com.ycl.platform.service.ITMonitorService;
import com.ycl.platform.service.impl.CheckIndexFaceServiceImpl;
import com.ycl.system.mapper.SysConfigMapper;
import com.ycl.system.mapper.SysDeptMapper;
import constant.ApiConstants;
import constant.CheckConstants;
import constant.CheckSnapCountConstants;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.util.CollectionUtils;
import utils.DateUtils;

import java.math.BigDecimal;
import java.math.RoundingMode;
import java.util.*;
import java.util.function.Function;
import java.util.stream.Collectors;

/**
 * 计算人脸点位在线率、视图库对接稳定性
 * 获取分省厅、区域的map<k,v> k为deptId或者Province_deptId
 * 循环map计算点位在线率
 * 更新或新增
 */
@Component
public class FaceSiteOnlineCalculation implements CalculationStrategy<SnapshotDataMonitorResult> {
    @Autowired
    private CheckIndexFaceMapper checkIndexFaceMapper;
    @Autowired
    private ICheckIndexFaceService checkIndexFaceService;
    @Autowired
    private SysConfigMapper sysConfigMapper;
    @Autowired
    private ITMonitorService monitorService;

    //区域人脸点位在线指标的内部类
    private static class AreaStats {
        int totalSites = 0;
        int offlineSites = 0;
        int totalDataSum = 0;
    }

    @Override
    public void calculate(List<SnapshotDataMonitorResult> list) {
        if (CollectionUtils.isEmpty(list)) {
            return;
        }

        Map<String, AreaStats> areaStatsMap = new HashMap<>();
        Map<String, TMonitor> monitorMap = monitorService.list(new QueryWrapper<TMonitor>()
                        .in("serial_number", list.stream().map(SnapshotDataMonitorResult::getExternalIndexCode).collect(Collectors.toList())))
                .stream().collect(Collectors.toMap(TMonitor::getSerialNumber, Function.identity()));

        // TODO: 分省厅市局 需要补充集合数据
        List<String> provinceIds = new ArrayList<>(); // 这里需要根据点位补充

        for (SnapshotDataMonitorResult result : list) {
            TMonitor monitor = monitorMap.get(result.getExternalIndexCode());
            if (monitor == null) continue;

            String deptId = monitor.getDeptId().toString();
            updateAreaStats(areaStatsMap, deptId, result);

            // 处理省厅数据
            if (!CollectionUtils.isEmpty(provinceIds) && provinceIds.contains(monitor.getSerialNumber())) {
                String provinceKey = "Province_" + deptId;
                updateAreaStats(areaStatsMap, provinceKey, result);
            }
        }

        //获取2022同期抓拍平均值 省厅、市局
        BigDecimal cityCountAvg = getAverageCount(CheckSnapCountConstants.City);
        BigDecimal countyCountAvg = getAverageCount(CheckSnapCountConstants.County);

        // 查询今日数据
        List<CheckIndexFace> checkIndexFaceList = checkIndexFaceMapper.selectToday(DateUtils.getDate());
        List<CheckIndexFace> checkIndexFaces = new ArrayList<>();
        areaStatsMap.forEach((deptId, stats) -> {
            if (stats.totalSites > 0) {
                CheckIndexFace checkIndexFace = createOrUpdateCheckIndexFace(deptId, stats, cityCountAvg, countyCountAvg, checkIndexFaceList);
                checkIndexFaces.add(checkIndexFace);
            }
        });

        checkIndexFaceService.saveOrUpdateBatch(checkIndexFaces);
    }

    //累计总点位数、离线数、总抓拍量
    private void updateAreaStats(Map<String, AreaStats> areaStatsMap, String key, SnapshotDataMonitorResult result) {
        //返回对象的引用，如果不存在会放入新的key,value
        AreaStats stats = areaStatsMap.computeIfAbsent(key, k -> new AreaStats());
        stats.totalSites++;
        if (ApiConstants.HK_SnapCount_ResultType_Null == result.getResultType()) {
            stats.offlineSites++;
        } else {
            stats.totalDataSum += result.getDataCount();
        }
    }

    //获取2022同期抓拍平均值
    private BigDecimal getAverageCount(String configKey) {
        String count = sysConfigMapper.checkConfigKeyUnique(configKey).getConfigValue();
        return new BigDecimal(count).multiply(new BigDecimal(CheckSnapCountConstants.Multiply))
                .divide(new BigDecimal(CheckSnapCountConstants.CountyNum), 0, RoundingMode.HALF_UP);
    }

    //车辆点位在线率和视图库对接稳定性
    private CheckIndexFace createOrUpdateCheckIndexFace(String key, AreaStats stats, BigDecimal cityCountAvg, BigDecimal countyCountAvg, List<CheckIndexFace> checkIndexFaceList) {
        CheckIndexFace checkIndexFace;

        // 检查是否已存在今日数据
        Optional<CheckIndexFace> existingFace = checkIndexFaceList.stream()
                .filter(face -> key.equals(face.getDeptId().toString()) &&
                        (key.startsWith("Province_") ? CheckConstants.Examine_Tag_City.equals(face.getExamineTag())
                                : CheckConstants.Examine_Tag_County.equals(face.getExamineTag())))
                .findFirst();

        if (existingFace.isPresent()) {
            checkIndexFace = existingFace.get();
        } else {
            checkIndexFace = new CheckIndexFace();
            checkIndexFace.setDeptId(key.startsWith("Province_") ? Long.parseLong(key.split("_")[1]) : Long.parseLong(key));
            checkIndexFace.setExamineTag(key.startsWith("Province_") ? CheckConstants.Examine_Tag_City : CheckConstants.Examine_Tag_County);
            checkIndexFace.setCreateTime(new Date());
        }

        // 点位在线率
        BigDecimal totalSitesBd = new BigDecimal(stats.totalSites);
        BigDecimal offlineSitesBd = new BigDecimal(stats.offlineSites);
        BigDecimal onlineSitesBd = totalSitesBd.subtract(offlineSitesBd);
        checkIndexFace.setSiteOnline(onlineSitesBd.divide(totalSitesBd, 4, RoundingMode.HALF_UP));
        //视图库对接稳定性
        BigDecimal avgCount = key.startsWith("Province_") ? cityCountAvg : countyCountAvg;
        checkIndexFace.setViewConnectStability(new BigDecimal(stats.totalDataSum).divide(avgCount, 4, RoundingMode.HALF_UP));

        return checkIndexFace;
    }
}