oto/lib/framework/utils/string_util.dart

import 'dart:convert';

String toPascal(String raw) {
  return '${raw[0].toUpperCase()}${raw.substring(1).toLowerCase()}';
}

String getDates() {
  return '${getDate()} ${getTime()}';
}

String getDate() {
  var now = DateTime.now();
  return '${now.year.toString().substring(2, 4)}-${now.month.toString().padLeft(2, '0')}-${now.day.toString().padLeft(2, '0')}';
}

String getTime() {
  var now = DateTime.now();
  return '${now.hour.toString().padLeft(2, '0')}:${now.minute.toString().padLeft(2, '0')}:${now.second.toString().padLeft(2, '0')}';
}

String jsonPrettyEncode(Object? object) {
  return JsonEncoder.withIndent('  ').convert(object);
}

String incrementVersion(String version, {int fixedLength = 3, bool reverse = false}) {
  var parts = version.split('.').map(int.parse).toList();
  if (parts.length < fixedLength) {
    var needLength = fixedLength - parts.length;
    for (int i = 0; i < needLength; ++i) {
      if (reverse) { parts.add(0); } else { parts.insert(0, 0); }
    }
  }

  for (int i = parts.length - 1; i >= 0; i--) {
    if (parts[i] < 999) {
      parts[i] += 1;
      break;
    } else {
      parts[i] = 0;
    }
  }

  return parts.join('.');
}