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index.js
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index.js
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import {
MILLISECONDS_A_DAY,
MILLISECONDS_A_HOUR,
MILLISECONDS_A_MINUTE,
MILLISECONDS_A_SECOND,
MILLISECONDS_A_WEEK,
REGEX_FORMAT
} from '../../constant'
const MILLISECONDS_A_YEAR = MILLISECONDS_A_DAY * 365
const MILLISECONDS_A_MONTH = MILLISECONDS_A_YEAR / 12
const durationRegex = /^(-|\+)?P(?:([-+]?[0-9,.]*)Y)?(?:([-+]?[0-9,.]*)M)?(?:([-+]?[0-9,.]*)W)?(?:([-+]?[0-9,.]*)D)?(?:T(?:([-+]?[0-9,.]*)H)?(?:([-+]?[0-9,.]*)M)?(?:([-+]?[0-9,.]*)S)?)?$/
const unitToMS = {
years: MILLISECONDS_A_YEAR,
months: MILLISECONDS_A_MONTH,
days: MILLISECONDS_A_DAY,
hours: MILLISECONDS_A_HOUR,
minutes: MILLISECONDS_A_MINUTE,
seconds: MILLISECONDS_A_SECOND,
milliseconds: 1,
weeks: MILLISECONDS_A_WEEK
}
const isDuration = d => d instanceof Duration // eslint-disable-line no-use-before-define
let $d
let $u
const wrapper = (input, instance, unit) =>
new Duration(input, unit, instance.$l) // eslint-disable-line no-use-before-define
const prettyUnit = unit => `${$u.p(unit)}s`
const isNegative = number => number < 0
const roundNumber = number =>
(isNegative(number) ? Math.ceil(number) : Math.floor(number))
const absolute = number => Math.abs(number)
const getNumberUnitFormat = (number, unit) => {
if (!number) {
return {
negative: false,
format: ''
}
}
if (isNegative(number)) {
return {
negative: true,
format: `${absolute(number)}${unit}`
}
}
return {
negative: false,
format: `${number}${unit}`
}
}
class Duration {
constructor(input, unit, locale) {
this.$d = {}
this.$l = locale
if (input === undefined) {
this.$ms = 0
this.parseFromMilliseconds()
}
if (unit) {
return wrapper(input * unitToMS[prettyUnit(unit)], this)
}
if (typeof input === 'number') {
this.$ms = input
this.parseFromMilliseconds()
return this
}
if (typeof input === 'object') {
Object.keys(input).forEach((k) => {
this.$d[prettyUnit(k)] = input[k]
})
this.calMilliseconds()
return this
}
if (typeof input === 'string') {
const d = input.match(durationRegex)
if (d) {
const properties = d.slice(2)
const numberD = properties.map(value => (value != null ? Number(value) : 0));
[
this.$d.years,
this.$d.months,
this.$d.weeks,
this.$d.days,
this.$d.hours,
this.$d.minutes,
this.$d.seconds
] = numberD
this.calMilliseconds()
return this
}
}
return this
}
calMilliseconds() {
this.$ms = Object.keys(this.$d).reduce((total, unit) => (
total + ((this.$d[unit] || 0) * (unitToMS[unit]))
), 0)
}
parseFromMilliseconds() {
let { $ms } = this
this.$d.years = roundNumber($ms / MILLISECONDS_A_YEAR)
$ms %= MILLISECONDS_A_YEAR
this.$d.months = roundNumber($ms / MILLISECONDS_A_MONTH)
$ms %= MILLISECONDS_A_MONTH
this.$d.days = roundNumber($ms / MILLISECONDS_A_DAY)
$ms %= MILLISECONDS_A_DAY
this.$d.hours = roundNumber($ms / MILLISECONDS_A_HOUR)
$ms %= MILLISECONDS_A_HOUR
this.$d.minutes = roundNumber($ms / MILLISECONDS_A_MINUTE)
$ms %= MILLISECONDS_A_MINUTE
this.$d.seconds = roundNumber($ms / MILLISECONDS_A_SECOND)
$ms %= MILLISECONDS_A_SECOND
this.$d.milliseconds = $ms
}
toISOString() {
const Y = getNumberUnitFormat(this.$d.years, 'Y')
const M = getNumberUnitFormat(this.$d.months, 'M')
let days = +this.$d.days || 0
if (this.$d.weeks) {
days += this.$d.weeks * 7
}
const D = getNumberUnitFormat(days, 'D')
const H = getNumberUnitFormat(this.$d.hours, 'H')
const m = getNumberUnitFormat(this.$d.minutes, 'M')
let seconds = this.$d.seconds || 0
if (this.$d.milliseconds) {
seconds += this.$d.milliseconds / 1000
seconds = Math.round(seconds * 1000) / 1000
}
const S = getNumberUnitFormat(seconds, 'S')
const negativeMode =
Y.negative ||
M.negative ||
D.negative ||
H.negative ||
m.negative ||
S.negative
const T = H.format || m.format || S.format ? 'T' : ''
const P = negativeMode ? '-' : ''
const result = `${P}P${Y.format}${M.format}${D.format}${T}${H.format}${m.format}${S.format}`
return result === 'P' || result === '-P' ? 'P0D' : result
}
toJSON() {
return this.toISOString()
}
format(formatStr) {
const str = formatStr || 'YYYY-MM-DDTHH:mm:ss'
const matches = {
Y: this.$d.years,
YY: $u.s(this.$d.years, 2, '0'),
YYYY: $u.s(this.$d.years, 4, '0'),
M: this.$d.months,
MM: $u.s(this.$d.months, 2, '0'),
D: this.$d.days,
DD: $u.s(this.$d.days, 2, '0'),
H: this.$d.hours,
HH: $u.s(this.$d.hours, 2, '0'),
m: this.$d.minutes,
mm: $u.s(this.$d.minutes, 2, '0'),
s: this.$d.seconds,
ss: $u.s(this.$d.seconds, 2, '0'),
SSS: $u.s(this.$d.milliseconds, 3, '0')
}
return str.replace(REGEX_FORMAT, (match, $1) => $1 || String(matches[match]))
}
as(unit) {
return this.$ms / (unitToMS[prettyUnit(unit)])
}
get(unit) {
let base = this.$ms
const pUnit = prettyUnit(unit)
if (pUnit === 'milliseconds') {
base %= 1000
} else if (pUnit === 'weeks') {
base = roundNumber(base / unitToMS[pUnit])
} else {
base = this.$d[pUnit]
}
return base || 0 // a === 0 will be true on both 0 and -0
}
add(input, unit, isSubtract) {
let another
if (unit) {
another = input * unitToMS[prettyUnit(unit)]
} else if (isDuration(input)) {
another = input.$ms
} else {
another = wrapper(input, this).$ms
}
return wrapper(this.$ms + (another * (isSubtract ? -1 : 1)), this)
}
subtract(input, unit) {
return this.add(input, unit, true)
}
locale(l) {
const that = this.clone()
that.$l = l
return that
}
clone() {
return wrapper(this.$ms, this)
}
humanize(withSuffix) {
return $d()
.add(this.$ms, 'ms')
.locale(this.$l)
.fromNow(!withSuffix)
}
valueOf() {
return this.asMilliseconds()
}
milliseconds() { return this.get('milliseconds') }
asMilliseconds() { return this.as('milliseconds') }
seconds() { return this.get('seconds') }
asSeconds() { return this.as('seconds') }
minutes() { return this.get('minutes') }
asMinutes() { return this.as('minutes') }
hours() { return this.get('hours') }
asHours() { return this.as('hours') }
days() { return this.get('days') }
asDays() { return this.as('days') }
weeks() { return this.get('weeks') }
asWeeks() { return this.as('weeks') }
months() { return this.get('months') }
asMonths() { return this.as('months') }
years() { return this.get('years') }
asYears() { return this.as('years') }
}
const manipulateDuration = (date, duration, k) =>
date.add(duration.years() * k, 'y')
.add(duration.months() * k, 'M')
.add(duration.days() * k, 'd')
.add(duration.hours() * k, 'h')
.add(duration.minutes() * k, 'm')
.add(duration.seconds() * k, 's')
.add(duration.milliseconds() * k, 'ms')
export default (option, Dayjs, dayjs) => {
$d = dayjs
$u = dayjs().$utils()
dayjs.duration = function (input, unit) {
const $l = dayjs.locale()
return wrapper(input, { $l }, unit)
}
dayjs.isDuration = isDuration
const oldAdd = Dayjs.prototype.add
const oldSubtract = Dayjs.prototype.subtract
Dayjs.prototype.add = function (value, unit) {
if (isDuration(value)) {
return manipulateDuration(this, value, 1)
}
return oldAdd.bind(this)(value, unit)
}
Dayjs.prototype.subtract = function (value, unit) {
if (isDuration(value)) {
return manipulateDuration(this, value, -1)
}
return oldSubtract.bind(this)(value, unit)
}
}