/*
 * Copyright (C) Sapphirecode - All Rights Reserved
 * This file is part of consts which is released under MIT.
 * See file 'LICENSE' for full license details.
 * Created by Timo Hocker <timo@scode.ovh>, December 2020
 */

/* eslint-disable sort-keys */
'use strict';

function is_leap (year) {
  return year % 4 === 0 && (year % 100 !== 0 || year % 400 === 0);
}

function base (second = 1) {
  const ms = second / 1000;
  const us = ms / 1000;
  const ns = us / 1000;
  const minute = second * 60;
  const hour = minute * 60;
  const day = hour * 24;
  const week = day * 7;

  const year = (y) => {
    const days = is_leap (y) ? 366 : 365;
    return days * day;
  };

  const month = (m, y) => {
    let days = 0;
    if (m === 2)
      days = is_leap (y) ? 29 : 28;
    else if (m < 8)
      days = 30 + (m % 2);
    else
      days = 31 - (m % 2);

    return days * day;
  };

  return {
    ns,
    us,
    ms,
    second,
    minute,
    hour,
    day,
    week,
    month,
    year
  };
}

module.exports = {
  base_s:  base (1),
  base_ms: base (1e3),
  base_us: base (1e6),
  base_ns: base (1e9),
  base
};