kavehhn
3348ca5798
Match students by name when national ID or phone is missing, parse Jalali dates, and allow sessions without a professor.
98 lines
2.6 KiB
JavaScript
98 lines
2.6 KiB
JavaScript
'use strict';
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const toEnglishDigits = (value) =>
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String(value ?? '')
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.replace(/[۰-۹]/g, (d) => '۰۱۲۳۴۵۶۷۸۹'.indexOf(d))
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.replace(/[٠-٩]/g, (d) => '٠١٢٣٤٥٦٧٨٩'.indexOf(d));
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const jalaliToGregorian = (jy, jm, jd) => {
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const gy = jy <= 979 ? 621 : 1600;
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jy -= jy <= 979 ? 0 : 979;
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let days =
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365 * jy +
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Math.floor(jy / 33) * 8 +
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Math.floor(((jy % 33) + 3) / 4) +
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78 +
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jd +
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(jm < 7 ? (jm - 1) * 31 : (jm - 7) * 30 + 186);
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let gyOut = gy + 400 * Math.floor(days / 146097);
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days %= 146097;
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if (days > 36524) {
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gyOut += 100 * Math.floor(--days / 36524);
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days %= 36524;
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if (days >= 365) days += 1;
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}
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gyOut += 4 * Math.floor(days / 1461);
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days %= 1461;
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if (days > 365) {
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gyOut += Math.floor((days - 1) / 365);
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days = (days - 1) % 365;
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}
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let gd = days + 1;
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const sal_a = [
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0,
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31,
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(gyOut % 4 === 0 && gyOut % 100 !== 0) || gyOut % 400 === 0 ? 29 : 28,
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31,
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30,
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31,
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30,
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31,
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31,
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30,
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31,
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30,
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31
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];
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let gm = 0;
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for (gm = 1; gm <= 12 && gd > sal_a[gm]; gm += 1) gd -= sal_a[gm];
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return `${gyOut}-${String(gm).padStart(2, '0')}-${String(gd).padStart(2, '0')}`;
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};
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const parseJalaliDate = (raw) => {
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if (!raw) return null;
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const text = toEnglishDigits(raw).replace(/[./\-]/g, '/').trim();
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const match = text.match(/^(\d{3,4})\/(\d{1,2})\/(\d{1,2})$/);
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if (!match) return null;
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const jy = Number(match[1]);
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const jm = Number(match[2]);
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const jd = Number(match[3]);
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if (!jy || !jm || !jd || jm > 12 || jd > 31 || jy < 1200 || jy > 1599) return null;
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try {
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return jalaliToGregorian(jy, jm, jd);
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} catch {
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return null;
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}
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};
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const parseImportDate = (raw) => {
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if (!raw) return null;
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if (raw instanceof Date) {
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return Number.isNaN(raw.getTime()) ? null : raw;
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}
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const text = String(raw).trim();
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if (!text) return null;
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const gregorian = text.match(/^(\d{4}-\d{2}-\d{2})/);
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if (gregorian) return new Date(`${gregorian[1]}T00:00:00.000Z`);
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const jalali = parseJalaliDate(text);
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if (jalali) return new Date(`${jalali}T00:00:00.000Z`);
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const date = new Date(text);
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return Number.isNaN(date.getTime()) ? null : date;
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};
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const utcDayRange = (value) => {
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const date = parseImportDate(value);
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if (!date) return null;
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const start = new Date(Date.UTC(date.getUTCFullYear(), date.getUTCMonth(), date.getUTCDate()));
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const end = new Date(start.getTime() + 24 * 60 * 60 * 1000);
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return { start, end };
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};
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module.exports = {
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toEnglishDigits,
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jalaliToGregorian,
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parseJalaliDate,
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parseImportDate,
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utcDayRange
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};
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