import { subDays, subMonths, subWeeks, subYears } from "date-fns";
import { DateFilter } from "@shared/types";

export function subtractDate(date: Date, period: DateFilter) {
  switch (period) {
    case "day":
      return subDays(date, 1);

    case "week":
      return subWeeks(date, 1);

    case "month":
      return subMonths(date, 1);

    case "year":
      return subYears(date, 1);

    default:
      return date;
  }
}