package com.smppw.analysis.application.service;

import cn.hutool.core.collection.CollUtil;
import cn.hutool.core.collection.CollectionUtil;
import cn.hutool.core.collection.ListUtil;
import cn.hutool.core.map.MapUtil;
import cn.hutool.core.util.NumberUtil;
import cn.hutool.core.util.StrUtil;
import com.smppw.analysis.application.dto.BaseParams;
import com.smppw.analysis.application.dto.IndicatorParams;
import com.smppw.analysis.application.dto.TrendParams;
import com.smppw.analysis.domain.service.BaseIndicatorServiceV2;
import com.smppw.common.exception.APIException;
import com.smppw.common.exception.DataException;
import com.smppw.common.pojo.IStrategy;
import com.smppw.common.pojo.dto.calc.IndicatorCalcIndexDataDto;
import com.smppw.common.pojo.dto.calc.IndicatorCalcPropertyDto;
import com.smppw.common.pojo.dto.calc.IndicatorCalcSecDataDto;
import com.smppw.common.pojo.dto.indicator.CalcMultipleSecMultipleTimeRangeIndicatorReq;
import com.smppw.common.pojo.dto.indicator.DateIntervalDto;
import com.smppw.common.pojo.enums.*;
import com.smppw.constants.Consts;
import com.smppw.core.reta.calc.PerformanceConsistency;
import com.smppw.utils.StrategyHandleUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Service;

import java.math.BigDecimal;
import java.util.List;
import java.util.Map;
import java.util.Optional;

@Service
public class PerformanceService {
    private final Logger logger = LoggerFactory.getLogger(PerformanceService.class);
    private final BaseIndicatorServiceV2 baseIndicatorServiceV2;

    public PerformanceService(BaseIndicatorServiceV2 baseIndicatorServiceV2) {
        this.baseIndicatorServiceV2 = baseIndicatorServiceV2;
    }

    public Map<String, Object> calcIndicators(IndicatorParams params) {
        return this.calcIndicators(params, ListUtil.toList(Indicator.INDICATOR_TYPE_ARRAY), ListUtil.toList(Indicator.RISK_TABLE_EXCESS_INDICATOR_ARRAY));
    }

    public Map<String, Object> calcIndicators(IndicatorParams params, List<Indicator> indicators, List<Indicator> geoIndicators) {
        try {
            // 1.参数处理
            this.checkParams(params);
            List<String> refIds = params.getFundId();
            List<String> secIds = this.getSecIdsByParams(params);
            // 差集求指数id集合，包括基�
            List<String> indexIds = CollectionUtil.subtractToList(secIds, refIds);
            String riskOfFreeId = params.getRiskOfFreeId();
            Double riskOfFreeValue = params.getRiskOfFreeValue();
            if (StrUtil.isBlank(riskOfFreeId)) {
                riskOfFreeId = Consts.RISK_OF_FREE;
            } else if (NumberUtil.isNumber(riskOfFreeId)) {
                riskOfFreeValue = Double.parseDouble(riskOfFreeId);
                riskOfFreeId = null;
            }
            CalcMultipleSecMultipleTimeRangeIndicatorReq req = this.buildCalcReq(params, indicators, geoIndicators, DateIntervalType.CustomInterval, null);
            req.setRiskOfFreeId(riskOfFreeId);
            req.setRiskOfFreeValue(riskOfFreeValue);

            // 2.指标计算
            Map<String, List<IndicatorCalcPropertyDto>> indicator = this.baseIndicatorServiceV2.calcMultipleSecMultipleTimeRangeIndicator(req);

            // 3.返回结果处理
            Map<String, Object> valuesMap = MapUtil.newHashMap(true);
            Map<String, Object> indexValuesMap = MapUtil.newHashMap(true);
            for (String refId : refIds) {
                IndicatorCalcPropertyDto dto = Optional.ofNullable(indicator.get(refId)).filter(e -> !e.isEmpty()).map(e -> e.get(0)).orElse(null);
                // 标的指标
                Map<String, String> indicatorValues = Optional.ofNullable(dto).map(IndicatorCalcPropertyDto::getSecData).map(IndicatorCalcSecDataDto::getIndicatorValueMap).orElse(MapUtil.empty());
                // 标的几何指标
                Map<String, String> geoIndicatorValues = Optional.ofNullable(dto).map(IndicatorCalcPropertyDto::getSecData).map(IndicatorCalcSecDataDto::getExtraGeoIndicatorValueMap).orElse(MapUtil.empty());
                // 指数指标，包括基�
                Map<String, Map<String, String>> indexIndicatorValuesMap = Optional.ofNullable(dto).map(IndicatorCalcPropertyDto::getIndexData).map(IndicatorCalcIndexDataDto::getIndexIndicatorValueMap).orElse(MapUtil.empty());
                // 指数几何指标
                Map<String, Map<String, String>> indexGeoIndicatorValuesMap = Optional.ofNullable(dto).map(IndicatorCalcPropertyDto::getIndexData).map(IndicatorCalcIndexDataDto::getIndexGeoExtraIndicatorValueMap).orElse(MapUtil.empty());
                // 标的和指数分别处理最大回撤指标，并合并指标结果到一个map�
                Map<String, String> values = this.handleMaxDrawdown(indicatorValues, refId, null, false);
                Map<String, String> geoValues = this.handleMaxDrawdown(geoIndicatorValues, refId, null, true);
                Map<String, String> unionValues = MapUtil.<String, String>builder().putAll(values).putAll(geoValues).build();
                valuesMap.put(refId, unionValues);
                for (String indexId : indexIds) {
                    if (indexValuesMap.containsKey(indexId)) {
                        continue;
                    }
                    Map<String, String> indexValues = this.handleMaxDrawdown(indexIndicatorValuesMap.get(indexId), indexId, null, false);
                    Map<String, String> indexGeoValues = this.handleMaxDrawdown(indexGeoIndicatorValuesMap.get(indexId), indexId, params.getBenchmarkId(), true);
                    Map<String, String> unionIndexValues = MapUtil.<String, String>builder().putAll(indexValues).putAll(indexGeoValues).build();
                    indexValuesMap.put(indexId, unionIndexValues);
                }
            }

            // 返回结果对象构建
            return MapUtil.builder(valuesMap).putAll(indexValuesMap).build();
        } catch (Exception e) {
            e.printStackTrace();
            logger.error(String.format("基金收益风险指标计算错误：%s", e.getMessage()));
        }
        return MapUtil.newHashMap();
    }

    public Map<String, Object> trend(TrendParams params) {
        List<TrendType> trendTypes = ListUtil.toList(TrendType.Ret, TrendType.Nav, TrendType.ExtraNav, TrendType.OrigNav, TrendType.ExtraRetAri, TrendType.NetValueChange, TrendType.ExtraRetGeo, TrendType.DrawdownTrend);
        List<TrendType> indexTrendTypes = ListUtil.toList(TrendType.Ret, TrendType.OrigNav);
        return this.handleTrends(params, trendTypes, indexTrendTypes);
    }

    public Map<String, Object> handleTrends(TrendParams params, List<TrendType> trendTypes, List<TrendType> indexTrendTypes) {
        // 1、参数处理
        this.checkParams(params);
        List<String> refIds = params.getFundId();
        List<String> secIds = this.getSecIdsByParams(params);
        List<String> indexIds = CollectionUtil.subtractToList(secIds, refIds);

        // 时段参数构建
        DateIntervalDto dateInterval = this.buildDateIntervalByParams(params, DateIntervalType.CustomInterval, null);
        Map<String, String> benchmarkIdMap = MapUtil.newHashMap(true);
        for (String refId : refIds) {
            if (StrUtil.isBlank(params.getBenchmarkId())) {
                continue;
            }
            benchmarkIdMap.put(refId, params.getBenchmarkId());
        }

        // 计算走势图
        Map<String, List<IndicatorCalcPropertyDto>> trendMap = this.baseIndicatorServiceV2.getMultipleSecTrend(refIds, benchmarkIdMap,
                indexIds, dateInterval, params.getFrequency(), null, null, params.getRaiseType(), this.getOriginStrategy(params),
                Visibility.Both, params.getNavType(), trendTypes);

        // 结果处理，支持多标的
        // 处理走势图
        Map<String, List<Map<String, Object>>> dataListMap = MapUtil.newHashMap(true);
        Map<String, List<Map<String, Object>>> indexDataListMap = MapUtil.newHashMap(true);
        Map<String, Map<String, Object>> trendListMap = MapUtil.newHashMap(true);
        Map<String, Map<String, Object>> indexTrendListMap = MapUtil.newHashMap(true);
        for (String refId : refIds) {
            IndicatorCalcPropertyDto dto = Optional.ofNullable(trendMap.get(refId)).filter(e -> !e.isEmpty()).map(e -> e.get(0)).orElse(null);
            List<String> tempDateList = Optional.ofNullable(dto).map(IndicatorCalcPropertyDto::getDateList).orElse(ListUtil.empty());
            // 基金走势序列
            Map<TrendType, List<Double>> tempTrendTypeListMap = Optional.ofNullable(dto).map(IndicatorCalcPropertyDto::getSecData).map(IndicatorCalcSecDataDto::getTrendValueMap).orElse(MapUtil.empty());
            trendListMap.put(refId, MapUtil.<String, Object>builder().put("dates", tempDateList).put("trend", tempTrendTypeListMap).build());
            dataListMap.put(refId, this.buildDateValue(tempDateList, tempTrendTypeListMap, trendTypes));
            // 指数净值和收益序列
            Map<String, Map<TrendType, List<Double>>> tempIndexTrendTypeListMap = Optional.ofNullable(dto).map(IndicatorCalcPropertyDto::getIndexData).map(IndicatorCalcIndexDataDto::getIndexTrendValueMap).orElse(MapUtil.empty());
            for (String indexId : indexIds) {
                if (indexDataListMap.containsKey(indexId) && !indexId.equals(params.getBenchmarkId())) {
                    continue;
                }
                indexTrendListMap.put(indexId, MapUtil.<String, Object>builder().put("dates", tempDateList).put("trend", tempIndexTrendTypeListMap.get(indexId)).build());
                indexDataListMap.put(indexId, this.buildDateValue(tempDateList, tempIndexTrendTypeListMap.get(indexId), indexTrendTypes));
            }
        }
//        Map<String, List<Map<String, Object>>> valuesMap = this.multiSecMergeDateValue(refIds, trendMap, dataListMap, trendTypes, multiSec);
        Map<String, List<Map<String, Object>>> dataset = MapUtil.<String, List<Map<String, Object>>>builder().putAll(dataListMap).build();
//        Map<String, String> productNameMapping = this.secId2NameService.query(secIds);
//        Map<String, Object> extInfos = MapUtil.<String, Object>builder().put("endDate", params.getEndDate()).put("startDate", params.getStartDate()).build();
//        if (masterId != null || !multiSec) {
//            // 求基金和基准的年化收益率
//            String fundId = refIds.get(0);
//            Map<String, Object> map = trendListMap.get(fundId);
//            Map<String, Object> indexMap = Optional.ofNullable(indexTrendListMap.get(params.getBenchmarkId())).orElse(MapUtil.newHashMap());
//            List<String> dateList = MapUtil.get(map, "dates", List.class);
//            Map<TrendType, List<Double>> trendTypeListMap = MapUtil.get(map, "trend", Map.class);
//            Map<TrendType, List<Double>> indexTrendTypeListMap = Optional.ofNullable(MapUtil.get(indexMap, "trend", Map.class)).orElse(MapUtil.newHashMap());
//            List<DateValue> dateValues = this.buildDateValue(dateList, trendTypeListMap.get(TrendType.Nav));
//            List<DateValue> indexDateValues = this.buildDateValue(dateList, indexTrendTypeListMap.get(TrendType.OrigNav));
//            Double annual = IndicatorFactory.getInstance().get(Indicator.AnnualReturn).calc(dateValues);
//            Double annualBenchmark = IndicatorFactory.getInstance().get(Indicator.AnnualReturn).calc(indexDateValues);
//            // 求最大回撤和超额最大回撤，业绩走势图不返回
//            Double maxDown = this.handleMaxAndMin(trendTypeListMap.get(TrendType.DrawdownTrend), (o1, o2) -> o1 > o2 ? o2 : o1);
//            Double maxExtraDown = this.handleMaxAndMin(trendTypeListMap.get(TrendType.ExtraDrawdownTrend), (o1, o2) -> o1 > o2 ? o2 : o1);
//            Map<String, Object> extInfos1 = MapUtil.<String, Object>builder("maxDown", maxDown).put("maxExtraDown", maxExtraDown)
//                    .put("annual", annual).put("annualBenchmark", annualBenchmark).build();
//            extInfos.putAll(extInfos1);
//            dataset.putAll(indexDataListMap);
//        }
        return MapUtil.newHashMap();
    }

    /**
     * 构建指标计算参数
     *
     * @param params          接口请求参数
     * @param indicators      要计算的普通指标
     * @param geoIndicators   geo指标
     * @param dateIntervalMap 时段
     * @param <P>             类型参数
     * @return /
     */
    private <P extends BaseParams> CalcMultipleSecMultipleTimeRangeIndicatorReq buildCalcReq(P params, List<Indicator> indicators, List<Indicator> geoIndicators, Map<String, List<DateIntervalDto>> dateIntervalMap) {
        List<String> refIds = params.getFundId();
        List<String> secIds = this.getSecIdsByParams(params);
        // 差集求指数id集合，包括基准
        List<String> indexIds = CollectionUtil.subtractToList(secIds, refIds);
        Map<String, String> benchmarkIdMap = MapUtil.newHashMap(true);
        for (String refId : refIds) {
            if (StrUtil.isBlank(params.getBenchmarkId())) {
                continue;
            }
            benchmarkIdMap.put(refId, params.getBenchmarkId());
        }
        return CalcMultipleSecMultipleTimeRangeIndicatorReq.builder()
                .mainSecIdList(refIds)
                .secBenchmarkIdMap(benchmarkIdMap)
                .indexIdList(indexIds)
                .raiseType(params.getRaiseType())
                .strategy(this.getOriginStrategy(params))
                .visibility(Visibility.Both)
                .dataFrequency(params.getFrequency())
                .navType(params.getNavType())
                .secDateIntervalDtoListMap(dateIntervalMap)
                .indicatorList(indicators)
                .geoExtraindicatorList(geoIndicators)
                .ifAnnualize(true)
                .calcIndexRetIndicatorValue(true)
                .ifConvertPerformanceConsistencyWord(true).build();
    }

    /**
     * 构建指标计算请求参数
     *
     * @param params           /
     * @param indicatorList    要计算的普通指标列表
     * @param geoIndicatorList 几何指标列表
     * @param dateIntervalType /
     * @param frequency        /
     * @param <P>              /
     * @return /
     */
    protected <P extends BaseParams> CalcMultipleSecMultipleTimeRangeIndicatorReq buildCalcReq(P params, List<Indicator> indicatorList, List<Indicator> geoIndicatorList,
                                                                                               DateIntervalType dateIntervalType, Frequency frequency) {
        List<String> refIds = params.getFundId();
        DateIntervalDto dateInterval = this.buildDateIntervalByParams(params, dateIntervalType, frequency);
        Map<String, List<DateIntervalDto>> dateIntervalMap = MapUtil.newHashMap(true);
        for (String refId : refIds) {
            dateIntervalMap.put(refId, ListUtil.toList(dateInterval));
        }
        return this.buildCalcReq(params, indicatorList, geoIndicatorList, dateIntervalMap);
    }

    /**
     * 根据请求参数构建 DateIntervalDto 对象
     *
     * @param params           请求参数，需继承 CommonParams
     * @param dateIntervalType 时段类型
     * @param frequency        接口传递的频率，一般为滚动计算时传递的滚动频率
     * @param <P>              参数类型
     * @return /
     */
    protected <P extends BaseParams> DateIntervalDto buildDateIntervalByParams(P params, DateIntervalType dateIntervalType, Frequency frequency) {
        if (dateIntervalType == null) {
            dateIntervalType = DateIntervalType.DefaultInterval;
        }
        if (frequency == null) {
            frequency = params.getFrequency();
        }
        return DateIntervalDto.builder()
                .id(dateIntervalType.name())
                .startDate(params.getStartDate())
                .endDate(params.getEndDate())
                .timeRange(params.getTimeRange())
                .dateIntervalType(dateIntervalType)
                .frequency(frequency).build();
    }


    /**
     * 策略枚举，从字符串转换。实现类太多不能自动转换需特殊处理
     */
    protected <P extends BaseParams> IStrategy getOriginStrategy(P params) {
        return StrategyHandleUtils.getStrategy(params.getStrategy());
    }

    /**
     * 公共参数检验，部分参数为空时设置默认值.
     *
     * @param params 请求参数
     * @param <P>    类型参数
     */
    protected <P extends BaseParams> void checkParams(P params) {
        if (params.getFundId() == null || params.getFundId().isEmpty()) {
            throw new APIException("fundId 参数不能为空");
        }
        if (StrUtil.isBlank(params.getStartDate()) && StrUtil.isBlank(params.getEndDate())) {
            throw new DataException(null);
        }
        if (params.getNavType() == null) {
            logger.warn(String.format("navType 为null, 设置一个初始值：%s", NavType.CumulativeNav));
            params.setNavType(NavType.CumulativeNav);
        }
        if (params.getFrequency() == null) {
            logger.warn(String.format("frequency 为null, 设置一个初始值：%s", Frequency.Daily));
            params.setFrequency(Frequency.Daily);
        }
    }

    /**
     * 从请求参数中获取所有标的并集集合
     *
     * @param params 公共请求参数
     * @param <P>    类型
     * @return /
     */
    protected <P extends BaseParams> List<String> getSecIdsByParams(P params) {
        List<String> tempList = ListUtil.list(true);
        tempList.addAll(params.getFundId());
        if (StrUtil.isNotBlank(params.getBenchmarkId())) {
            tempList.add(params.getBenchmarkId());
        }
        return params.getSecIds() == null ? tempList : CollUtil.addAllIfNotContains(tempList, params.getSecIds());
    }

    /**
     * 处理最大回撤问题，是否已恢复
     *
     * @param indicatorValues 指标结果
     * @param secId           标的id
     * @param benchmarkId     基准
     * @param geo             是否处理geo几何指标
     * @return 新map
     */
    protected Map<String, String> handleMaxDrawdown(Map<String, String> indicatorValues, String secId, String benchmarkId, boolean geo) {
        Map<String, String> result = MapUtil.newHashMap();
        String maxDrawdown = indicatorValues.get(Indicator.MaxDrawdown.name());
        String consistency = indicatorValues.get(Indicator.PerformanceConsistency.name());
        if (StrUtil.isNotBlank(maxDrawdown) && new BigDecimal(maxDrawdown).compareTo(BigDecimal.ZERO) > 0) {
            if (StrUtil.isBlank(indicatorValues.get(Indicator.MaxDrawdownRecureDate.name()))) {
                indicatorValues.put(Indicator.MaxDrawdownRecureDate.name(), "最大回撤未修复");
            }
            if (StrUtil.isBlank(indicatorValues.get(Indicator.MaxDrawdownRecureIntervalDays.name()))) {
                indicatorValues.put(Indicator.MaxDrawdownRecureIntervalDays.name(), "最大回撤未修复");
            }
            if (StrUtil.isBlank(indicatorValues.get(Indicator.MaxDrawdownRecureInterval.name()))) {
                indicatorValues.put(Indicator.MaxDrawdownRecureInterval.name(), "最大回撤未修复");
            }
        }
        if (StrUtil.isEmpty(consistency)) {
            indicatorValues.put(Indicator.PerformanceConsistency.name(), PerformanceConsistency.convert2Word(null));
        } else {
            indicatorValues.put(Indicator.PerformanceConsistency.name(), PerformanceConsistency.convert2Word(Double.parseDouble(consistency)));
        }
        if (geo) {
            indicatorValues.forEach((k, v) -> result.put("geoExcess" + k, secId != null && secId.equals(benchmarkId) ? null : v));
        } else {
            result.putAll(indicatorValues);
        }
        return result;
    }

    /**
     * 构建日期值对象
     *
     * @param dateList         日期序列
     * @param trendTypeListMap 走势图数据
     * @param trendTypes       走势图类型列表
     * @return /
     */
    private List<Map<String, Object>> buildDateValue(List<String> dateList, Map<TrendType, List<Double>> trendTypeListMap, List<TrendType> trendTypes) {
        List<Map<String, Object>> dataList = ListUtil.list(true);
        for (int i = 0; i < dateList.size(); i++) {
            Map<String, Object> temp = MapUtil.<String, Object>builder("date", dateList.get(i)).build();
            for (TrendType trendType : trendTypes) {
                List<Double> doubles = trendTypeListMap.get(trendType);
                Object value = null;
                try {
                    value = i <= doubles.size() ? doubles.get(i) : null;
                } catch (Exception ignored) {
                }
                temp.put(StrUtil.toCamelCase(trendType.name()), value);
            }
            dataList.add(temp);
        }
        return dataList;
    }
}