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import {CalendarDate as $35ea8db9cb2ccb90$export$99faa760c7908e4f} from "./CalendarDate.module.js";
import {mod as $2b4dce13dd5a17fa$export$842a2cf37af977e1} from "./utils.module.js";
/*
* Copyright 2020 Adobe. All rights reserved.
* This file is licensed to you under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License. You may obtain a copy
* of the License at http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed under
* the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS
* OF ANY KIND, either express or implied. See the License for the specific language
* governing permissions and limitations under the License.
*/ // Portions of the code in this file are based on code from ICU.
// Original licensing can be found in the NOTICE file in the root directory of this source tree.
const $7c5f6fbf42389787$var$HEBREW_EPOCH = 347997;
// Hebrew date calculations are performed in terms of days, hours, and
// "parts" (or halakim), which are 1/1080 of an hour, or 3 1/3 seconds.
const $7c5f6fbf42389787$var$HOUR_PARTS = 1080;
const $7c5f6fbf42389787$var$DAY_PARTS = 24 * $7c5f6fbf42389787$var$HOUR_PARTS;
// An approximate value for the length of a lunar month.
// It is used to calculate the approximate year and month of a given
// absolute date.
const $7c5f6fbf42389787$var$MONTH_DAYS = 29;
const $7c5f6fbf42389787$var$MONTH_FRACT = 12 * $7c5f6fbf42389787$var$HOUR_PARTS + 793;
const $7c5f6fbf42389787$var$MONTH_PARTS = $7c5f6fbf42389787$var$MONTH_DAYS * $7c5f6fbf42389787$var$DAY_PARTS + $7c5f6fbf42389787$var$MONTH_FRACT;
function $7c5f6fbf42389787$var$isLeapYear(year) {
return (0, $2b4dce13dd5a17fa$export$842a2cf37af977e1)(year * 7 + 1, 19) < 7;
}
// Test for delay of start of new year and to avoid
// Sunday, Wednesday, and Friday as start of the new year.
function $7c5f6fbf42389787$var$hebrewDelay1(year) {
let months = Math.floor((235 * year - 234) / 19);
let parts = 12084 + 13753 * months;
let day = months * 29 + Math.floor(parts / 25920);
if ((0, $2b4dce13dd5a17fa$export$842a2cf37af977e1)(3 * (day + 1), 7) < 3) day += 1;
return day;
}
// Check for delay in start of new year due to length of adjacent years
function $7c5f6fbf42389787$var$hebrewDelay2(year) {
let last = $7c5f6fbf42389787$var$hebrewDelay1(year - 1);
let present = $7c5f6fbf42389787$var$hebrewDelay1(year);
let next = $7c5f6fbf42389787$var$hebrewDelay1(year + 1);
if (next - present === 356) return 2;
if (present - last === 382) return 1;
return 0;
}
function $7c5f6fbf42389787$var$startOfYear(year) {
return $7c5f6fbf42389787$var$hebrewDelay1(year) + $7c5f6fbf42389787$var$hebrewDelay2(year);
}
function $7c5f6fbf42389787$var$getDaysInYear(year) {
return $7c5f6fbf42389787$var$startOfYear(year + 1) - $7c5f6fbf42389787$var$startOfYear(year);
}
function $7c5f6fbf42389787$var$getYearType(year) {
let yearLength = $7c5f6fbf42389787$var$getDaysInYear(year);
if (yearLength > 380) yearLength -= 30; // Subtract length of leap month.
switch(yearLength){
case 353:
return 0; // deficient
case 354:
return 1; // normal
case 355:
return 2; // complete
}
}
function $7c5f6fbf42389787$var$getDaysInMonth(year, month) {
// Normalize month numbers from 1 - 13, even on non-leap years
if (month >= 6 && !$7c5f6fbf42389787$var$isLeapYear(year)) month++;
// First of all, dispose of fixed-length 29 day months
if (month === 4 || month === 7 || month === 9 || month === 11 || month === 13) return 29;
let yearType = $7c5f6fbf42389787$var$getYearType(year);
// If it's Heshvan, days depend on length of year
if (month === 2) return yearType === 2 ? 30 : 29;
// Similarly, Kislev varies with the length of year
if (month === 3) return yearType === 0 ? 29 : 30;
// Adar I only exists in leap years
if (month === 6) return $7c5f6fbf42389787$var$isLeapYear(year) ? 30 : 0;
return 30;
}
class $7c5f6fbf42389787$export$ca405048b8fb5af {
fromJulianDay(jd) {
let d = jd - $7c5f6fbf42389787$var$HEBREW_EPOCH;
let m = d * $7c5f6fbf42389787$var$DAY_PARTS / $7c5f6fbf42389787$var$MONTH_PARTS; // Months (approx)
let year = Math.floor((19 * m + 234) / 235) + 1; // Years (approx)
let ys = $7c5f6fbf42389787$var$startOfYear(year); // 1st day of year
let dayOfYear = Math.floor(d - ys);
// Because of the postponement rules, it's possible to guess wrong. Fix it.
while(dayOfYear < 1){
year--;
ys = $7c5f6fbf42389787$var$startOfYear(year);
dayOfYear = Math.floor(d - ys);
}
// Now figure out which month we're in, and the date within that month
let month = 1;
let monthStart = 0;
while(monthStart < dayOfYear){
monthStart += $7c5f6fbf42389787$var$getDaysInMonth(year, month);
month++;
}
month--;
monthStart -= $7c5f6fbf42389787$var$getDaysInMonth(year, month);
let day = dayOfYear - monthStart;
return new (0, $35ea8db9cb2ccb90$export$99faa760c7908e4f)(this, year, month, day);
}
toJulianDay(date) {
let jd = $7c5f6fbf42389787$var$startOfYear(date.year);
for(let month = 1; month < date.month; month++)jd += $7c5f6fbf42389787$var$getDaysInMonth(date.year, month);
return jd + date.day + $7c5f6fbf42389787$var$HEBREW_EPOCH;
}
getDaysInMonth(date) {
return $7c5f6fbf42389787$var$getDaysInMonth(date.year, date.month);
}
getMonthsInYear(date) {
return $7c5f6fbf42389787$var$isLeapYear(date.year) ? 13 : 12;
}
getDaysInYear(date) {
return $7c5f6fbf42389787$var$getDaysInYear(date.year);
}
getYearsInEra() {
// 6239 gregorian
return 9999;
}
getEras() {
return [
'AM'
];
}
balanceYearMonth(date, previousDate) {
// Keep date in the same month when switching between leap years and non leap years
if (previousDate.year !== date.year) {
if ($7c5f6fbf42389787$var$isLeapYear(previousDate.year) && !$7c5f6fbf42389787$var$isLeapYear(date.year) && previousDate.month > 6) date.month--;
else if (!$7c5f6fbf42389787$var$isLeapYear(previousDate.year) && $7c5f6fbf42389787$var$isLeapYear(date.year) && previousDate.month > 6) date.month++;
}
}
constructor(){
this.identifier = 'hebrew';
}
}
export {$7c5f6fbf42389787$export$ca405048b8fb5af as HebrewCalendar};
//# sourceMappingURL=HebrewCalendar.module.js.map
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