export const TimeDataUnit = {
  DD: '天',
  HH: '时',
  mm: '分',
  ss: '秒',
  SSS: '毫秒',
};

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

export const parseTimeData = function (time) {
  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 {
    DD: days,
    HH: hours,
    mm: minutes,
    ss: seconds,
    SSS: milliseconds,
  };
};

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


/**
 *
 * @param time 倒计时时间，毫秒单位
 * @param format 倒计时格式化字符串，例如：dd天hh小时mm分ss秒SSS毫秒，hh:mm:ss.SSS，hh:mm:ss
 */
export const parseFormat = function (time, format) {
  const obj = {
    'D+': Math.floor(time / 86400000), // 日
    'H+': Math.floor((time % 86400000) / 3600000), // 小时
    'm+': Math.floor((time % 3600000) / 60000), // 分
    's+': Math.floor((time % 60000) / 1000), // 秒
    'S+': Math.floor(time % 1000), // 毫秒
  };
  const timeList = [];
  let timeText = format;

  Object.keys(obj).forEach((prop) => {
    if (new RegExp(`(${prop})`).test(timeText)) {
      timeText = timeText.replace(RegExp.$1, (match, offset, source) => {
        const v = `${(obj)[prop]}`;
        let digit = v;
        if (match.length > 1) {
          digit = (match.replace(new RegExp(match[0], 'g'), '0') + v).substr(v.length);
        }
        const unit = source.substr(offset + match.length);
        const last = timeList[timeList.length - 1];
        if (last) {
          const index = last.unit.indexOf(match);
          if (index !== -1) {
            last.unit = last.unit.substr(0, index);
          }
        }
        timeList.push({ digit, unit, match });
        return digit;
      });
    }
  });
  return { timeText, timeList };
};