VLEX/BPM-UI/node_modules/ngx-bootstrap/chronos/esm5/units/week-calendar-utils.js

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
/**
 *
 * @param {number} year
 * @param {number} dow - start-of-first-week
 * @param {number} doy - start-of-year
 * @returns {number}
 */
import { createUTCDate } from '../create/date-from-array';
import { daysInYear } from './year';
import { getDayOfYear } from './day-of-year';
import { getFullYear } from '../utils/date-getters';
/**
 * @param {?} year
 * @param {?} dow
 * @param {?} doy
 * @return {?}
 */
function firstWeekOffset(year, dow, doy) {
    // first-week day -- which january is always in the first week (4 for iso, 1 for other)
    /** @type {?} */
    var fwd = dow - doy + 7;
    // first-week day local weekday -- which local weekday is fwd
    /** @type {?} */
    var fwdlw = (createUTCDate(year, 0, fwd).getUTCDay() - dow + 7) % 7;
    return -fwdlw + fwd - 1;
}
// https://en.wikipedia.org/wiki/ISO_week_date#Calculating_a_date_given_the_year.2C_week_number_and_weekday
/**
 * @param {?} year
 * @param {?} week
 * @param {?} weekday
 * @param {?} dow
 * @param {?} doy
 * @return {?}
 */
export function dayOfYearFromWeeks(year, week, weekday, dow, doy) {
    /** @type {?} */
    var localWeekday = (7 + weekday - dow) % 7;
    /** @type {?} */
    var weekOffset = firstWeekOffset(year, dow, doy);
    /** @type {?} */
    var dayOfYear = 1 + 7 * (week - 1) + localWeekday + weekOffset;
    /** @type {?} */
    var resYear;
    /** @type {?} */
    var resDayOfYear;
    if (dayOfYear <= 0) {
        resYear = year - 1;
        resDayOfYear = daysInYear(resYear) + dayOfYear;
    }
    else if (dayOfYear > daysInYear(year)) {
        resYear = year + 1;
        resDayOfYear = dayOfYear - daysInYear(year);
    }
    else {
        resYear = year;
        resDayOfYear = dayOfYear;
    }
    return {
        year: resYear,
        dayOfYear: resDayOfYear
    };
}
/**
 * @param {?} date
 * @param {?} dow
 * @param {?} doy
 * @param {?=} isUTC
 * @return {?}
 */
export function weekOfYear(date, dow, doy, isUTC) {
    /** @type {?} */
    var weekOffset = firstWeekOffset(getFullYear(date, isUTC), dow, doy);
    /** @type {?} */
    var week = Math.floor((getDayOfYear(date, isUTC) - weekOffset - 1) / 7) + 1;
    /** @type {?} */
    var resWeek;
    /** @type {?} */
    var resYear;
    if (week < 1) {
        resYear = getFullYear(date, isUTC) - 1;
        resWeek = week + weeksInYear(resYear, dow, doy);
    }
    else if (week > weeksInYear(getFullYear(date, isUTC), dow, doy)) {
        resWeek = week - weeksInYear(getFullYear(date, isUTC), dow, doy);
        resYear = getFullYear(date, isUTC) + 1;
    }
    else {
        resYear = getFullYear(date, isUTC);
        resWeek = week;
    }
    return {
        week: resWeek,
        year: resYear
    };
}
/**
 * @param {?} year
 * @param {?} dow
 * @param {?} doy
 * @return {?}
 */
export function weeksInYear(year, dow, doy) {
    /** @type {?} */
    var weekOffset = firstWeekOffset(year, dow, doy);
    /** @type {?} */
    var weekOffsetNext = firstWeekOffset(year + 1, dow, doy);
    return (daysInYear(year) - weekOffset + weekOffsetNext) / 7;
}
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