Bangla Plugin

toBangla<Locale extends $BnEn = 'bn'>(
  options?: BanglaDateOptions<Locale>
): BanglaDateObject<Locale>

{
  year: string | number,      // Bengali year
  month: string | number,     // Bengali month (1-12)
  date: string | number,      // Bengali day of month (1-31)
  monthName: string,          // Bengali month name
  dayName: string,            // Bengali weekday name
  seasonName: string,         // Bengali season name
  isLeapYear: boolean         // Whether it's a leap year
}

const chronos = new Chronos('2023-04-14');
const banglaDate = chronos.toBangla();
// Returns: {
//   year: '১৪৩০',
//   month: '১',
//   date: '১',
//   monthName: 'বৈশাখ',
//   dayName: 'শুক্রবার',
//   seasonName: 'গ্রীষ্ম',
//   isLeapYear: false
// }

const banglaDateEn = chronos.toBangla({ locale: 'en' });
// Returns: {
//   year: 1430,
//   month: 1,
//   date: 1,
//   monthName: 'Boishakh',
//   dayName: 'Shukrobar (Friday)',
//   seasonName: 'Grisma (Summer)',
//   isLeapYear: false
// }

formatBangla(format?: SafeFormat, options?: BnCalendarConfig): string

const chronos = new Chronos('2023-04-14 14:30:00');

chronos.formatBangla();
// Returns: 'শুক্রবার, বৈশাখ ০১ (গ্রীষ্মকাল), ১৪৩০ বঙ্গাব্দ - ০২:৩০:০০ (অপরাহ্ণ)'

chronos.formatBangla('YYYY-MM-DD');
// Returns: '১৪৩০-০১-০১'

chronos.formatBangla('mmmm DD, YYYY');
// Returns: 'বৈশাখ ০১, ১৪৩০'

chronos.formatBangla('hh:mm:ss A');
// Returns: '০২:৩০:০০ অপরাহ্ণ'

chronos.formatBangla('[আজ] ddd, DD mmmm');
// Returns: 'আজ শুক্রবার, ০১ বৈশাখ'

getBanglaYear<Locale extends $BnEn = 'bn'>(locale?: Locale): $BanglaYear<Locale>

const chronos = new Chronos('2023-04-14');
chronos.getBanglaYear(); // Returns: '১৪৩০'
chronos.getBanglaYear('en'); // Returns: 1430

getBanglaMonth<Locale extends $BnEn = 'bn'>(
  options?: BanglaDateOptions<Locale>
): $BanglaMonth<Locale>

const chronos = new Chronos('2023-04-14');
chronos.getBanglaMonth(); // Returns: '১' (বৈশাখ)
chronos.getBanglaMonth({ locale: 'en' }); // Returns: 1
chronos.getBanglaMonth({ variant: 'revised-1966' }); // Uses 1966 variant

getBanglaDay<Locale extends $BnEn = 'bn'>(
  options?: BanglaDateOptions<Locale>
): $BanglaMonthDate<Locale>

const chronos = new Chronos('2023-04-14');
chronos.getBanglaDay(); // Returns: '১'
chronos.getBanglaDay({ locale: 'en' }); // Returns: 1
chronos.getBanglaDay({ variant: 'revised-1966' }); // Uses 1966 variant

getBanglaDayName<Locale extends $BnEn = 'bn'>(locale?: Locale): BanglaDayName<Locale>

const chronos = new Chronos('2023-04-14'); // Friday
chronos.getBanglaDayName(); // Returns: 'শুক্রবার'
chronos.getBanglaDayName('en'); // Returns: 'Shukrobar (Friday)'

getBanglaMonthName<Locale extends $BnEn = 'bn'>(
  options?: BanglaDateOptions<Locale>
): BanglaMonthName<Locale>

const chronos = new Chronos('2023-04-14');
chronos.getBanglaMonthName(); // Returns: 'বৈশাখ'
chronos.getBanglaMonthName({ locale: 'en' }); // Returns: 'Boishakh'
chronos.getBanglaMonthName({ variant: 'revised-1966' }); // Uses 1966 variant

getBanglaSeasonName<Locale extends $BnEn = 'bn'>(
  options?: BanglaDateOptions<Locale>
): BanglaSeasonName<Locale>

const chronos = new Chronos('2023-04-14');
chronos.getBanglaSeasonName(); // Returns: 'গ্রীষ্ম'
chronos.getBanglaSeasonName({ locale: 'en' }); // Returns: 'Grisma (Summer)'

$configureBangla(options: BnCalendarConfig): void

const c1 = new Chronos();
const c2 = new Chronos();

// Default is 'revised-2019'
c1.getBanglaMonth(); // uses 'revised-2019'

// Set global default to 1966 variant
c1.$configureBangla({ variant: 'revised-1966' });

c1.getBanglaMonth(); // now uses 'revised-1966'
c2.getBanglaMonth(); // also uses 'revised-1966'

// Per-call override still works
c1.getBanglaMonth({ variant: 'revised-2019' }); // uses 'revised-2019' for this call only

type BanglaDateObject<Locale extends $BnEn = 'bn'> = {
  year: $BanglaYear<Locale>;          // Bengali year
  month: $BanglaMonth<Locale>;        // Bengali month (1-12)
  date: $BanglaMonthDate<Locale>;     // Bengali day of month (1-31)
  dayName: BanglaDayName<Locale>;     // Bengali weekday name
  monthName: BanglaMonthName<Locale>; // Bengali month name
  seasonName: BanglaSeasonName<Locale>; // Bengali season name
  isLeapYear: boolean;                // Leap year status
};

interface BanglaDateOptions<Locale extends $BnEn> extends BnCalendarConfig {
  locale?: Locale | $BnEn;  // 'bn' or 'en'
}

interface BnCalendarConfig {
  variant?: BnCalendarVariant;  // 'revised-2019' or 'revised-1966'
}

type BnCalendarVariant = 'revised-2019' | 'revised-1966';