package com.trafficaudit.reportexport.calc;
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import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
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import com.trafficaudit.common.util.RegionUtil;
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import com.trafficaudit.dataimport.entity.FreightTurnoverImport;
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import com.trafficaudit.dataimport.entity.H2032EnterpriseMonthly;
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import com.trafficaudit.dataimport.entity.ScaleSplitTransport;
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import com.trafficaudit.dataimport.mapper.FreightTurnoverImportMapper;
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import com.trafficaudit.dataimport.mapper.H2032EnterpriseMonthlyMapper;
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import com.trafficaudit.dataimport.mapper.ScaleSplitTransportMapper;
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import org.springframework.stereotype.Service;
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import javax.annotation.Resource;
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import java.util.HashMap;
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import java.util.LinkedHashMap;
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import java.util.List;
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import java.util.Map;
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/**
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* 货运口径计算服务（汇总大表数据驱动改造 M1-货运，2026-09-08）。
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*
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* 口径（决策基线 docs/确认回执汇总…_2026-09-07.md B1；2026-07 与已修正母版两张成品页
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* 规上/规下 当月+累计 逐格回归 0 差异）：
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* 1. 规上货运量 = h2032_enterprise_monthly.freight_total（吨）按 17 市州汇总 ÷10000（万吨）。
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* 2. 合计货运量 = freight_turnover_import.freight_mMM（当月）/ freight_m01..mMM（累计）。
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* 3. 规下货运量 = 合计 − 规上（拆分表不存货运量列，不能直接取规下）。
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* 4. 规上/合计周转量 = scale_split_transport MONTH|CUMULATIVE 的 above_scale_turnover / total_turnover
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* （合计与 freight_turnover_import.turnover_mMM 同源，已核对一致）；规下周转 = 合计 − 规上。
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* 5. 同比（去年同口径）不在本服务计算：按 Q1 以母版缓存 2025 参照组为基准，由写回层填表时计算。
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*
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* 输出 key = RegionUtil 规范市州名（武汉市…神农架林区）+ PROVINCE（湖北省，全省行 = 17 市州之和，
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* 与母版“全省行=Σ城市行”公式一致）。
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*/
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@Service
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public class FreightCalc {
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public static final String PROVINCE = "湖北省";
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/** 单个期间（当月或累计）的货运量/周转量三口径指标；无数据为 null */
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public static class FreightMetrics {
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private final Double aboveFreight; // 规上货运量（万吨）
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private final Double belowFreight; // 规下货运量（万吨）
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private final Double totalFreight; // 规上+规下货运量（万吨）
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private final Double aboveTurnover; // 规上货物周转量（万吨公里）
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private final Double belowTurnover; // 规下货物周转量（万吨公里）
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private final Double totalTurnover; // 规上+规下货物周转量（万吨公里）
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public FreightMetrics(Double aboveFreight, Double belowFreight, Double totalFreight,
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Double aboveTurnover, Double belowTurnover, Double totalTurnover) {
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this.aboveFreight = aboveFreight;
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this.belowFreight = belowFreight;
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this.totalFreight = totalFreight;
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this.aboveTurnover = aboveTurnover;
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this.belowTurnover = belowTurnover;
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this.totalTurnover = totalTurnover;
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}
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public Double getAboveFreight() { return aboveFreight; }
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public Double getBelowFreight() { return belowFreight; }
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public Double getTotalFreight() { return totalFreight; }
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public Double getAboveTurnover() { return aboveTurnover; }
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public Double getBelowTurnover() { return belowTurnover; }
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public Double getTotalTurnover() { return totalTurnover; }
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}
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/** 全量货运矩阵：month=当月，cumulative=截至 period 月累计 */
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public static class FreightMatrix {
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private final String period;
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private final Map<String, FreightMetrics> month;
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private final Map<String, FreightMetrics> cumulative;
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public FreightMatrix(String period, Map<String, FreightMetrics> month, Map<String, FreightMetrics> cumulative) {
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this.period = period;
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this.month = month;
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this.cumulative = cumulative;
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}
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public String getPeriod() { return period; }
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public Map<String, FreightMetrics> getMonth() { return month; }
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public Map<String, FreightMetrics> getCumulative() { return cumulative; }
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}
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@Resource
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private H2032EnterpriseMonthlyMapper h2032Mapper;
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@Resource
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private FreightTurnoverImportMapper freightTurnoverMapper;
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@Resource
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private ScaleSplitTransportMapper scaleSplitMapper;
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/** 计算 period（如 2026-07）的当月与累计货运矩阵 */
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public FreightMatrix calc(String period) {
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int year = Integer.parseInt(period.substring(0, 4));
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int month = Integer.parseInt(period.substring(5, 7));
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// H2032 规上货运量（吨）：市州 -> 月桶
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Map<String, Map<Integer, Double>> h2032TonByCityMonth = new HashMap<>();
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List<H2032EnterpriseMonthly> h2032List = h2032Mapper.selectList(
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new LambdaQueryWrapper<H2032EnterpriseMonthly>().likeRight(H2032EnterpriseMonthly::getReportPeriod, year));
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for (H2032EnterpriseMonthly rec : h2032List) {
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String rp = rec.getReportPeriod();
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if (rp == null || rp.compareTo(period) > 0) continue;
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String city = RegionUtil.cityByCode(rec.getRegionCode());
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if (city == null) continue;
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double freight = rec.getFreightTotal() == null ? 0.0 : rec.getFreightTotal();
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h2032TonByCityMonth.computeIfAbsent(city, k -> new HashMap<>())
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.merge(Integer.parseInt(rp.substring(5, 7)), freight, Double::sum);
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}
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// freight_turnover_import：合计货运量/周转量（仅存城市行；湖北省行由求和得出）
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Map<String, FreightTurnoverImport> ftMap = new HashMap<>();
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for (FreightTurnoverImport e : freightTurnoverMapper.selectList(
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new LambdaQueryWrapper<FreightTurnoverImport>()
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.eq(FreightTurnoverImport::getReportPeriod, period))) {
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String city = RegionUtil.normalizeCityName(e.getRegionName());
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if (city != null && !PROVINCE.equals(city)) ftMap.put(city, e);
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}
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// scale_split_transport：规上/合计周转量
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Map<String, ScaleSplitTransport> splitMonth = new HashMap<>();
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Map<String, ScaleSplitTransport> splitCumulative = new HashMap<>();
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for (ScaleSplitTransport rec : scaleSplitMapper.selectList(
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new LambdaQueryWrapper<ScaleSplitTransport>()
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.eq(ScaleSplitTransport::getReportPeriod, period))) {
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String city = RegionUtil.normalizeCityName(rec.getRegionName());
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if (city == null || PROVINCE.equals(city)) continue;
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if ("MONTH".equals(rec.getPeriodType())) splitMonth.put(city, rec);
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else if ("CUMULATIVE".equals(rec.getPeriodType())) splitCumulative.put(city, rec);
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}
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Map<String, FreightMetrics> monthMap = new LinkedHashMap<>();
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Map<String, FreightMetrics> cumulativeMap = new LinkedHashMap<>();
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for (String city : RegionUtil.cityList()) {
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monthMap.put(city, buildMetrics(city, month, h2032TonByCityMonth, ftMap, splitMonth, false));
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cumulativeMap.put(city, buildMetrics(city, month, h2032TonByCityMonth, ftMap, splitCumulative, true));
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}
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monthMap.put(PROVINCE, sumOf(monthMap));
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cumulativeMap.put(PROVINCE, sumOf(cumulativeMap));
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return new FreightMatrix(period, monthMap, cumulativeMap);
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}
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/** 单城市指标。cumulative=true 时 H2032 取 1..month 全桶、合计取 m01..mMM 之和；false 时只取当月。 */
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private FreightMetrics buildMetrics(String city, int month,
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Map<String, Map<Integer, Double>> h2032TonByCityMonth,
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Map<String, FreightTurnoverImport> ftMap,
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Map<String, ScaleSplitTransport> splitMap,
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boolean cumulative) {
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Double aboveFreight = null;
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Map<Integer, Double> h2032Buckets = h2032TonByCityMonth.get(city);
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if (h2032Buckets != null) {
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double ton;
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if (cumulative) {
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ton = 0.0;
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for (int m = 1; m <= month; m++) ton += h2032Buckets.getOrDefault(m, 0.0);
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} else {
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ton = h2032Buckets.getOrDefault(month, 0.0);
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}
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aboveFreight = ton / 10000.0;
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}
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FreightTurnoverImport ft = ftMap.get(city);
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Double totalFreight = null;
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Double totalTurnoverFromFt = null;
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if (ft != null) {
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if (cumulative) {
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double f = 0.0, t = 0.0;
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for (int m = 1; m <= month; m++) {
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f += monthField(ft, m, true);
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t += monthField(ft, m, false);
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}
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totalFreight = f;
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totalTurnoverFromFt = t;
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} else {
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totalFreight = monthField(ft, month, true);
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totalTurnoverFromFt = monthField(ft, month, false);
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}
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}
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ScaleSplitTransport split = splitMap.get(city);
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Double aboveTurnover = split == null ? null : split.getAboveScaleTurnover();
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Double totalTurnover = split != null && split.getTotalTurnover() != null
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? split.getTotalTurnover() : totalTurnoverFromFt;
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Double belowFreight = totalFreight == null || aboveFreight == null ? null : totalFreight - aboveFreight;
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Double belowTurnover = totalTurnover == null ? null
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: totalTurnover - (aboveTurnover == null ? 0.0 : aboveTurnover);
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return new FreightMetrics(aboveFreight, belowFreight, totalFreight,
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aboveTurnover, belowTurnover, totalTurnover);
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}
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/** 湖北省行 = 17 市州之和（与母版全省行 Σ 公式一致；全市州无数据时输出 0） */
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private FreightMetrics sumOf(Map<String, FreightMetrics> byCity) {
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double af = 0.0, bf = 0.0, tf = 0.0, at = 0.0, bt = 0.0, tt = 0.0;
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for (String city : RegionUtil.cityList()) {
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FreightMetrics m = byCity.get(city);
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if (m == null) continue;
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af += nz(m.getAboveFreight());
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bf += nz(m.getBelowFreight());
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tf += nz(m.getTotalFreight());
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at += nz(m.getAboveTurnover());
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bt += nz(m.getBelowTurnover());
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tt += nz(m.getTotalTurnover());
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}
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return new FreightMetrics(af, bf, tf, at, bt, tt);
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}
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private double monthField(FreightTurnoverImport e, int m, boolean freight) {
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switch (m) {
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case 1: return freight ? nz(e.getFreightM01()) : nz(e.getTurnoverM01());
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case 2: return freight ? nz(e.getFreightM02()) : nz(e.getTurnoverM02());
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case 3: return freight ? nz(e.getFreightM03()) : nz(e.getTurnoverM03());
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case 4: return freight ? nz(e.getFreightM04()) : nz(e.getTurnoverM04());
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case 5: return freight ? nz(e.getFreightM05()) : nz(e.getTurnoverM05());
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case 6: return freight ? nz(e.getFreightM06()) : nz(e.getTurnoverM06());
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case 7: return freight ? nz(e.getFreightM07()) : nz(e.getTurnoverM07());
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case 8: return freight ? nz(e.getFreightM08()) : nz(e.getTurnoverM08());
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case 9: return freight ? nz(e.getFreightM09()) : nz(e.getTurnoverM09());
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case 10: return freight ? nz(e.getFreightM10()) : nz(e.getTurnoverM10());
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case 11: return freight ? nz(e.getFreightM11()) : nz(e.getTurnoverM11());
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case 12: return freight ? nz(e.getFreightM12()) : nz(e.getTurnoverM12());
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default: return 0.0;
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}
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}
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private double nz(Double v) { return v == null ? 0.0 : v; }
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}
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