/*
 * @Author: 一日看尽长安花
 * @since: 2019-12-01 11:03:53
 * @LastEditTime : 2020-01-28 14:20:30
 * @LastEditors  : 一日看尽长安花
 * @Description:
 */
// import parseTime, formatTime and set to filter
export { parseTime, formatTime } from '@/utils';
import { parseTime, formatTime } from '@/utils';

/**
 * Show plural label if time is plural number
 * @param {number} timestamp 时间戳
 * @return {string}
 */
export function symbolFormat(timestamp) {
  timestamp = Number(timestamp);
  return parseTime(timestamp, '{y}-{m}-{d} {h}:{i}:{s}');
}

/**
 * Show plural label if time is plural number
 * @param {number} time
 * @param {string} label
 * @return {string}
 */
export function pluralize(time, label) {
  if (time === 1) {
    return time + label;
  }
  return time + label + 's';
}

/**
 * @param {number} time
 */
export function timeAgo(time) {
  const between = Date.now() / 1000 - Number(time);
  if (between < 3600) {
    return pluralize(~~(between / 60), ' minute');
  } else if (between < 86400) {
    return pluralize(~~(between / 3600), ' hour');
  } else {
    return pluralize(~~(between / 86400), ' day');
  }
}

/**
 * Number formatting
 * like 10000 => 10k
 * @param {number} num
 * @param {number} digits
 */
export function numberFormatter(num, digits) {
  const si = [
    { value: 1e18, symbol: 'E' },
    { value: 1e15, symbol: 'P' },
    { value: 1e12, symbol: 'T' },
    { value: 1e9, symbol: 'G' },
    { value: 1e6, symbol: 'M' },
    { value: 1e3, symbol: 'k' }
  ];
  for (let i = 0; i < si.length; i++) {
    if (num >= si[i].value) {
      return (
        (num / si[i].value + 0.1)
          .toFixed(digits)
          .replace(/\.0+$|(\.[0-9]*[1-9])0+$/, '$1') + si[i].symbol
      );
    }
  }
  return num.toString();
}

/**
 * 10000 => "10,000"
 * @param {number} num
 */
export function toThousandFilter(num) {
  return (+num || 0)
    .toString()
    .replace(/^-?\d+/g, m => m.replace(/(?=(?!\b)(\d{3})+$)/g, ','));
}

/**
 * Upper case first char
 * @param {String} string
 */
export function uppercaseFirst(string) {
  return string.charAt(0).toUpperCase() + string.slice(1);
}
