42 lines
1.3 KiB
TypeScript
42 lines
1.3 KiB
TypeScript
import type { HydrogenDailyRow } from '../types';
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export {
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formatYmd,
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getQuickRange,
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getRangeModeLabel,
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normalizeRange,
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QUICK_PICK_OPTIONS,
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type RangeMode,
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} from '../daily-range/model';
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export function summarizeHydrogenRows(rows: HydrogenDailyRow[] | null) {
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const source = rows ?? [];
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// 图表固定按日期升序；复制数组避免改变接口返回及表格原始顺序。
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const trendData = [...source].sort((left, right) => left.date.localeCompare(right.date));
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const totalKg = source.reduce((total, row) => total + row.totalKg, 0);
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const activeDays = source.filter(row => row.totalKg > 0).length;
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const stationNames = new Set<string>();
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source.forEach(row => row.stations.forEach(station => stationNames.add(station.name)));
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const peakDay = trendData.reduce<HydrogenDailyRow | null>(
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(best, item) => (!best || item.totalKg > best.totalKg ? item : best),
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null,
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);
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const lowDay = trendData
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.filter(item => item.totalKg > 0)
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.reduce<HydrogenDailyRow | null>(
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(low, item) => (!low || item.totalKg < low.totalKg ? item : low),
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null,
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);
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return {
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trendData,
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totalKg,
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activeDays,
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stationCount: stationNames.size,
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avgKg: activeDays > 0 ? totalKg / activeDays : 0,
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peakDay,
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lowDay,
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zeroDays: source.filter(row => row.totalKg === 0).length,
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};
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}
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