formatInBuddhistCalendarThai method

String formatInBuddhistCalendarThai(DateTime dateTime)

Implementation

String formatInBuddhistCalendarThai(DateTime dateTime) {
  if (this.pattern!.contains('y')) {
    var buddhistDateTime = DateTime(
        dateTime.year,
        dateTime.month,
        dateTime.day,
        dateTime.hour,
        dateTime.minute,
        dateTime.second,
        dateTime.millisecond,
        dateTime.microsecond);

    // This path check DateFormat's locale, which already support Thai's one.
    // If you want to contribute, there are several countries that also use Buddhist calendar.
    // So you can help me correct their format by update the code below.
    // Reference: https://en.wikipedia.org/wiki/Buddhist_calendar
    // - Thailand
    // - Cambodia
    // - Laos
    // - MyanMar
    // - Sri Lanka
    // - Malaysia
    // - Singapore
    if (this.locale.contains('th') || this.locale.contains('TH')) {
      var normalYear = buddhistDateTime.year;
      var dateTimeString =
          this.format(buddhistDateTime).replaceAll('ค.ศ.', 'พ.ศ.');
      dateTimeString = dateTimeString.replaceAll(
          normalYear.toString(), (normalYear + 543).toString());
      return dateTimeString;
    } else {
      var result = this.format(buddhistDateTime);
      return result;
    }
  }
  return this.format(dateTime);
}