@modern-kit/utils/dist/date/getDateEndOf/index.mjs

modern-kit/utils

import { parseDate } from '../parseDate/index.mjs';
import '../parseDateString/index.mjs';

function getDateEndOf(date, unit) {
  const parsedDate = parseDate(date);
  const isUTC = unit.startsWith("utc");
  const baseUnit = isUTC ? unit.slice(3).toLowerCase() : unit;
  const year = isUTC ? parsedDate.getUTCFullYear() : parsedDate.getFullYear();
  const month = isUTC ? parsedDate.getUTCMonth() : parsedDate.getMonth();
  const day = isUTC ? parsedDate.getUTCDate() : parsedDate.getDate();
  switch (baseUnit) {
    case "year":
      if (isUTC) {
        return new Date(Date.UTC(year, 11, 31, 23, 59, 59, 999));
      }
      return new Date(year, 11, 31, 23, 59, 59, 999);
    case "month": {
      const lastDayOfMonth = isUTC ? new Date(Date.UTC(year, month + 1, 0)).getUTCDate() : new Date(year, month + 1, 0).getDate();
      if (isUTC) {
        return new Date(Date.UTC(year, month, lastDayOfMonth, 23, 59, 59, 999));
      }
      return new Date(year, month, lastDayOfMonth, 23, 59, 59, 999);
    }
    case "week": {
      const dayOfWeek = isUTC ? parsedDate.getUTCDay() : parsedDate.getDay();
      const endOfWeek = day + (6 - dayOfWeek);
      if (isUTC) {
        return new Date(Date.UTC(year, month, endOfWeek, 23, 59, 59, 999));
      }
      return new Date(year, month, endOfWeek, 23, 59, 59, 999);
    }
    case "date":
      if (isUTC) {
        return new Date(Date.UTC(year, month, day, 23, 59, 59, 999));
      }
      return new Date(year, month, day, 23, 59, 59, 999);
    default:
      throw new Error(`\uC9C0\uC6D0\uD558\uC9C0 \uC54A\uB294 \uB2E8\uC704\uC785\uB2C8\uB2E4`);
  }
}

export { getDateEndOf };
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