bengali-calendar/dist/utils.js

বাংলা তারিখ, সময়, মাস ও সপ্তাহের দিনের নাম সহ Bangla Calendar and Time Utility with TypeScript support.

const banglaDigits = ["০", "১", "২", "৩", "৪", "৫", "৬", "৭", "৮", "৯"];
const banglaMonths = [
    "জানুয়ারি",
    "ফেব্রুয়ারি",
    "মার্চ",
    "এপ্রিল",
    "মে",
    "জুন",
    "জুলাই",
    "আগস্ট",
    "সেপ্টেম্বর",
    "অক্টোবর",
    "নভেম্বর",
    "ডিসেম্বর",
];
const banglaWeekdays = [
    "রবিবার",
    "সোমবার",
    "মঙ্গলবার",
    "বুধবার",
    "বৃহস্পতিবার",
    "শুক্রবার",
    "শনিবার",
];
const banglaMonthsBengaliCalendar = [
    "বৈশাখ",
    "জ্যৈষ্ঠ",
    "আষাঢ়",
    "শ্রাবণ",
    "ভাদ্র",
    "আশ্বিন",
    "কার্তিক",
    "অগ্রহায়ণ",
    "পৌষ",
    "মাঘ",
    "ফাল্গুন",
    "চৈত্র",
];
const engDigits = ["0", "1", "2", "3", "4", "5", "6", "7", "8", "9"];
export function toBanglaDigits(input) {
    return input
        .toString()
        .split("")
        .map((char) => {
        if (char >= "0" && char <= "9") {
            return banglaDigits[parseInt(char)];
        }
        return char;
    })
        .join("");
}
export function toEnglishDigits(input) {
    return input
        .split("")
        .map((char) => {
        const index = banglaDigits.indexOf(char);
        if (index !== -1)
            return engDigits[index];
        return char;
    })
        .join("");
}
export function getBanglaDate(date) {
    const banglaYearStart = new Date(date.getFullYear(), 3, 14);
    let banglaYear = date.getFullYear() - 593;
    if (date < banglaYearStart) {
        banglaYear--;
        banglaYearStart.setFullYear(banglaYearStart.getFullYear() - 1);
    }
    const diffDays = Math.floor((date.getTime() - banglaYearStart.getTime()) / (1000 * 60 * 60 * 24));
    const banglaMonthDays = [31, 31, 31, 31, 31, 30, 30, 30, 30, 30, 29, 30];
    let monthIndex = 0;
    let remainingDays = diffDays;
    while (remainingDays >= banglaMonthDays[monthIndex]) {
        remainingDays -= banglaMonthDays[monthIndex];
        monthIndex++;
    }
    const banglaDay = toBanglaDigits(remainingDays + 1);
    const banglaMonth = banglaMonthsBengaliCalendar[monthIndex % 12];
    const banglaYearStr = toBanglaDigits(banglaYear);
    return { day: banglaDay, month: banglaMonth, year: banglaYearStr };
}
export function formatBanglaDate(date) {
    const dayName = banglaWeekdays[date.getDay()];
    const { day, month, year } = getBanglaDate(date);
    return `${dayName}, ${day} ${month} ${year}`;
}
export function formatBanglaTime(date, includeSeconds = true) {
    const hours = toBanglaDigits(date.getHours());
    const minutes = toBanglaDigits(date.getMinutes());
    const seconds = toBanglaDigits(date.getSeconds());
    return includeSeconds
        ? `${hours}:${minutes}:${seconds}`
        : `${hours}:${minutes}`;
}
export function formatBanglaTime12(date, includeSeconds = true) {
    let hours = date.getHours();
    const minutes = toBanglaDigits(date.getMinutes());
    const seconds = toBanglaDigits(date.getSeconds());
    const ampm = hours >= 12 ? "অপরাহ্ন" : "পুর্বাহ্ন";
    hours = hours % 12;
    if (hours === 0)
        hours = 12;
    const banglaHours = toBanglaDigits(hours);
    return includeSeconds
        ? `${banglaHours}:${minutes}:${seconds} ${ampm}`
        : `${banglaHours}:${minutes} ${ampm}`;
}
export function getCurrentBanglaDateTime() {
    const now = new Date();
    return {
        banglaDate: formatBanglaDate(now),
        banglaTime: formatBanglaTime(now),
    };
}
export function getBanglaWeekNumber(date) {
    const oneJan = new Date(date.getFullYear(), 0, 1);
    const numberOfDays = Math.floor((date.getTime() - oneJan.getTime()) / (24 * 60 * 60 * 1000));
    const weekNumber = Math.ceil((date.getDay() + 1 + numberOfDays) / 7);
    return toBanglaDigits(weekNumber);
}
export function getBanglaMonthFromEnglish(date) {
    const monthIndex = date.getMonth();
    const mapping = {
        0: 8,
        1: 9,
        2: 10,
        3: 11,
        4: 0,
        5: 1,
        6: 2,
        7: 3,
        8: 4,
        9: 5,
        10: 6,
        11: 7,
    };
    return banglaMonthsBengaliCalendar[mapping[monthIndex]];
}
export function getDayName(date) {
    return banglaWeekdays[date.getDay()];
}
export function getEnglishMonthName(date) {
    const englishMonths = [
        "January",
        "February",
        "March",
        "April",
        "May",
        "June",
        "July",
        "August",
        "September",
        "October",
        "November",
        "December",
    ];
    return englishMonths[date.getMonth()];
}
export function getBanglaMonthName(date) {
    return getBanglaDate(date).month;
}
export function formatBanglaDateWithBanglaMonth(date) {
    const { day, month } = getBanglaDate(date);
    return `${day} ${month}`;
}
export function formatFullBanglaDateTime(date, includeSeconds = true) {
    const dayName = banglaWeekdays[date.getDay()];
    const { day, month, year } = getBanglaDate(date);
    const time = formatBanglaTime(date, includeSeconds);
    return `${dayName}, ${day} ${month} ${year}, সময়: ${time}`;
}
export function getBanglEnglishFullDateTimeInfo(date = new Date()) {
    const banglaDateInfo = getBanglaDate(date);
    const banglaDayName = banglaWeekdays[date.getDay()];
    const banglaTime24 = formatBanglaTime(date);
    const banglaTime12 = formatBanglaTime12(date);
    const englishDay = date.getDate();
    const englishMonthName = getEnglishMonthName(date);
    const englishDayName = date.toLocaleString("en-US", { weekday: "long" });
    const englishYear = date.getFullYear();
    const englishTime24 = date.toLocaleTimeString("en-GB");
    const englishTime12 = date.toLocaleTimeString("en-US");
    return {
        bangla: {
            day: banglaDateInfo.day,
            month: banglaDateInfo.month,
            year: banglaDateInfo.year,
            weekday: banglaDayName,
            time24: banglaTime24,
            time12: banglaTime12,
        },
        english: {
            day: englishDay,
            month: englishMonthName,
            year: englishYear,
            weekday: englishDayName,
            time24: englishTime24,
            time12: englishTime12,
        },
    };
}
export function formatFullDateTimeDual(date = new Date(), includeSeconds = false) {
    const banglaDateInfo = getBanglaDate(date);
    const banglaDayName = banglaWeekdays[date.getDay()];
    let banglaHoursNum = date.getHours();
    const banglaAmPm = banglaHoursNum >= 12 ? "অপরাহ্ন" : "পুর্বাহ্ন";
    banglaHoursNum = banglaHoursNum % 12;
    if (banglaHoursNum === 0)
        banglaHoursNum = 12;
    const banglaHours = toBanglaDigits(banglaHoursNum);
    const banglaMinutes = toBanglaDigits(date.getMinutes());
    const banglaSeconds = toBanglaDigits(date.getSeconds());
    const banglaTime = includeSeconds
        ? `${banglaHours}:${banglaMinutes}:${banglaSeconds} ${banglaAmPm}`
        : `${banglaHours}:${banglaMinutes} ${banglaAmPm}`;
    const englishDayName = date.toLocaleString("en-US", { weekday: "long" });
    const englishDay = date.getDate();
    const englishMonthName = getEnglishMonthName(date);
    const englishYear = date.getFullYear();
    const englishHoursNum = date.getHours() % 12 || 12;
    const englishHours = englishHoursNum.toString().padStart(2, "0");
    const englishMinutes = date.getMinutes().toString().padStart(2, "0");
    const englishSeconds = date.getSeconds().toString().padStart(2, "0");
    const englishAmPm = date.getHours() >= 12 ? "PM" : "AM";
    const englishTime = includeSeconds
        ? `${englishHours}:${englishMinutes}:${englishSeconds} ${englishAmPm}`
        : `${englishHours}:${englishMinutes} ${englishAmPm}`;
    return `${banglaDayName}, ${banglaDateInfo.day} ${banglaDateInfo.month} ${banglaDateInfo.year} (${banglaTime}) | ${englishDayName}, ${englishDay} ${englishMonthName} ${englishYear} (${englishTime})`;
}