import type { H2BiDailyResponse } from "./types";

export function formatDailyChange(value: unknown): string {
  if (typeof value !== "number" || !Number.isFinite(value)) return "环比 —";
  return `环比 ${value > 0 ? "+" : ""}${value.toFixed(2)}%`;
}

/** Export the entire selected range, independently of which branches were opened. */
export function dailySummaryRows(daily: H2BiDailyResponse): Array<Array<string | number>> {
  return [
    ["日期", "加氢站数", "加氢量(Kg)", "成本(元)"],
    ["区间合计", daily.kpis.stationCount, daily.kpis.totalKg, daily.kpis.totalCost],
    ...daily.days.map(day => [day.date, day.stationCount ?? "—", day.kg, day.cost]),
  ];
}