ethiopianToGregorianString static method

Implementation

static String ethiopianToGregorianString(String ethiopianDateStr, {String separator = '/'}) {
  try {
    // Validate format first
    if (!_isValidDateFormat(ethiopianDateStr)) {
      throw Exception('Invalid date format. Use day/month/year or day-month-year with proper separators');
    }

    // Support both / and - separators
    final parts = ethiopianDateStr.contains('/')
        ? ethiopianDateStr.split('/')
        : ethiopianDateStr.split('-');

    if (parts.length != 3) {
      throw Exception('Invalid date format. Use day/month/year or day-month-year');
    }

    final day = int.parse(parts[0]);
    final month = int.parse(parts[1]);
    final year = int.parse(parts[2]);

    // Validate Ethiopian date ranges
    if (month < 1 || month > 13) {
      throw Exception('Ethiopian month must be between 1 and 13');
    }
    if (month == 13 && day > 6) {
      throw Exception('Pagume month can only have up to 6 days');
    }
    if (day < 1 || day > 30) {
      throw Exception('Day must be between 1 and 30');
    }

    final result = ethiopianToGregorian(year: year, month: month, day: day);

    return '${result['day']}$separator${result['month']}$separator${result['year']}';
  } catch (e) {
    throw Exception('Date conversion failed: $e');
  }
}