import { addFormatToken } from '../format/format';
import { addUnitAlias } from './aliases';
import { addUnitPriority } from './priorities';
import { addRegexToken, match1to2, match1to4, match1to6, match2, match4, match6, matchSigned } from '../parse/regex';
import { addWeekParseToken } from '../parse/token';
import { weekOfYear, weeksInYear, dayOfYearFromWeeks } from './week-calendar-utils';
import toInt from '../utils/to-int';
import { hooks } from '../utils/hooks';
import { createLocal } from '../create/local';
import { createUTCDate } from '../create/date-from-array';
// FORMATTING
addFormatToken(0, ['gg', 2], 0, function () {
return this.weekYear() % 100;
});
addFormatToken(0, ['GG', 2], 0, function () {
return this.isoWeekYear() % 100;
});
function addWeekYearFormatToken (token, getter) {
addFormatToken(0, [token, token.length], 0, getter);
}
addWeekYearFormatToken('gggg', 'weekYear');
addWeekYearFormatToken('ggggg', 'weekYear');
addWeekYearFormatToken('GGGG', 'isoWeekYear');
addWeekYearFormatToken('GGGGG', 'isoWeekYear');
// ALIASES
addUnitAlias('weekYear', 'gg');
addUnitAlias('isoWeekYear', 'GG');
// PRIORITY
addUnitPriority('weekYear', 1);
addUnitPriority('isoWeekYear', 1);
// PARSING
addRegexToken('G', matchSigned);
addRegexToken('g', matchSigned);
addRegexToken('GG', match1to2, match2);
addRegexToken('gg', match1to2, match2);
addRegexToken('GGGG', match1to4, match4);
addRegexToken('gggg', match1to4, match4);
addRegexToken('GGGGG', match1to6, match6);
addRegexToken('ggggg', match1to6, match6);
addWeekParseToken(['gggg', 'ggggg', 'GGGG', 'GGGGG'], function (input, week, config, token) {
week[token.substr(0, 2)] = toInt(input);
});
addWeekParseToken(['gg', 'GG'], function (input, week, config, token) {
week[token] = hooks.parseTwoDigitYear(input);
});
// MOMENTS
export function getSetWeekYear (input) {
return getSetWeekYearHelper.call(this,
input,
this.week(),
this.weekday(),
this.localeData()._week.dow,
this.localeData()._week.doy);
}
export function getSetISOWeekYear (input) {
return getSetWeekYearHelper.call(this,
input, this.isoWeek(), this.isoWeekday(), 1, 4);
}
export function getISOWeeksInYear () {
return weeksInYear(this.year(), 1, 4);
}
export function getWeeksInYear () {
var weekInfo = this.localeData()._week;
return weeksInYear(this.year(), weekInfo.dow, weekInfo.doy);
}
function getSetWeekYearHelper(input, week, weekday, dow, doy) {
var weeksTarget;
if (input == null) {
return weekOfYear(this, dow, doy).year;
} else {
weeksTarget = weeksInYear(input, dow, doy);
if (week > weeksTarget) {
week = weeksTarget;
}
return setWeekAll.call(this, input, week, weekday, dow, doy);
}
}
function setWeekAll(weekYear, week, weekday, dow, doy) {
var dayOfYearData = dayOfYearFromWeeks(weekYear, week, weekday, dow, doy),
date = createUTCDate(dayOfYearData.year, 0, dayOfYearData.dayOfYear);
this.year(date.getUTCFullYear());
this.month(date.getUTCMonth());
this.date(date.getUTCDate());
return this;
}