/**
 * 时长展示 比如：300秒 展示为：0:5
 * @param time number 单位:秒
 * @param format 返回的结果格式 {mm}
 * @param allowEmpty 是否允许time为空
 */
import { strPad } from '../string/strPad';

const [oneDay, oneHour, oneMinute] = [86400, 3600, 60];
export const formatTime = (time: number, format: string, allowEmpty = true) => {
  let timelen = time < 0 ? 0 : parseFloat(`${time}`);
  if ((isNaN(timelen) || !timelen) && !(allowEmpty && timelen === 0)) { // 0代表无数据，显示-
    return '-';
  }
  let [days, hours, minutes, seconds]: (number | undefined)[] = [undefined, undefined, undefined, undefined];

  if (format.indexOf('{DD}') > -1) {
    days = Math.floor(timelen / oneDay);
    timelen = Math.floor(timelen % oneDay);
  }

  if (format.indexOf('{HH}') > -1) {
    hours = Math.floor(timelen / oneHour);
    timelen = Math.floor(timelen % oneHour);
  }

  if (format.indexOf('{mm}') > -1) {
    minutes = Math.floor(timelen / oneMinute);
    timelen = Math.floor(timelen % oneMinute);
  }

  seconds = timelen;

  const timeStr = format
    .replace('{ss}', typeof seconds === 'number' ? strPad('left', String(seconds), 2, '0') : '')
    .replace('{mm}', typeof minutes === 'number' ? strPad('left', String(minutes), 2, '0') : '')
    .replace('{HH}', typeof hours === 'number' ? strPad('left', String(hours), 2, '0') : '')
    .replace('{DD}', typeof days === 'number' ? strPad('left', String(days), 2, '0') : '');


  return timeStr;
};