vant/src-next/count-down/utils.ts

import { padZero } from '../utils/format/string';

export type TimeData = {
  days: number;
  hours: number;
  minutes: number;
  seconds: number;
  milliseconds: number;
};

const SECOND = 1000;
const MINUTE = 60 * SECOND;
const HOUR = 60 * MINUTE;
const DAY = 24 * HOUR;

export function parseTimeData(time: number): TimeData {
  const days = Math.floor(time / DAY);
  const hours = Math.floor((time % DAY) / HOUR);
  const minutes = Math.floor((time % HOUR) / MINUTE);
  const seconds = Math.floor((time % MINUTE) / SECOND);
  const milliseconds = Math.floor(time % SECOND);

  return {
    days,
    hours,
    minutes,
    seconds,
    milliseconds,
  };
}

export function parseFormat(format: string, timeData: TimeData): string {
  const { days } = timeData;
  let { hours, minutes, seconds, milliseconds } = timeData;

  if (format.indexOf('DD') === -1) {
    hours += days * 24;
  } else {
    format = format.replace('DD', padZero(days));
  }

  if (format.indexOf('HH') === -1) {
    minutes += hours * 60;
  } else {
    format = format.replace('HH', padZero(hours));
  }

  if (format.indexOf('mm') === -1) {
    seconds += minutes * 60;
  } else {
    format = format.replace('mm', padZero(minutes));
  }

  if (format.indexOf('ss') === -1) {
    milliseconds += seconds * 1000;
  } else {
    format = format.replace('ss', padZero(seconds));
  }

  if (format.indexOf('S') !== -1) {
    const ms = padZero(milliseconds, 3);

    if (format.indexOf('SSS') !== -1) {
      format = format.replace('SSS', ms);
    } else if (format.indexOf('SS') !== -1) {
      format = format.replace('SS', ms.slice(0, 2));
    } else {
      format = format.replace('S', ms.charAt(0));
    }
  }

  return format;
}

export function isSameSecond(time1: number, time2: number): boolean {
  return Math.floor(time1 / 1000) === Math.floor(time2 / 1000);
}