react-day-picker/dist/esm/hijri/utils/conversion.js

Customizable Date Picker for React

import { gregorianToHijri, hijriToGregorian } from "@tabby_ai/hijri-converter";
import { clampGregorianDate, clampHijriDate, GREGORIAN_MIN_DATE, getGregorianDateParts, } from "./range.js";
/** Convert a Gregorian date to a Hijri date. */
export function toHijriDate(date) {
    const clamped = clampGregorianDate(date);
    const { year, month, day } = getGregorianDateParts(clamped);
    // gregorianToHijri uses 1-indexed months
    const hijri = gregorianToHijri({ year, month, day });
    return {
        year: hijri.year,
        monthIndex: hijri.month - 1, // Convert to 0-indexed
        day: hijri.day,
    };
}
/** Convert a Hijri date back to the Gregorian calendar. */
export function toGregorianDate(hijri) {
    const clamped = clampHijriDate(hijri);
    // hijriToGregorian expects 1-indexed months. Probe down from the candidate
    // day to handle invalid month/day combinations without throwing.
    for (let day = clamped.day; day >= 1; day -= 1) {
        try {
            const gregorian = hijriToGregorian({
                year: clamped.year,
                month: clamped.monthIndex + 1,
                day,
            });
            return clampGregorianDate(new Date(gregorian.year, gregorian.month - 1, gregorian.day));
        }
        catch {
            // Try a lower day for months that only have 29 days.
        }
    }
    // Fallback to the minimum supported Gregorian date if conversion probing
    // somehow fails for all days.
    return new Date(GREGORIAN_MIN_DATE);
}