class RequestHelper {
  static const String _baseUrl = 'https://didvan-greatsam.fandogh.cloud';

  static const String confirmUsername = _baseUrl + '/user/confirmUsername';
  static const String login = _baseUrl + '/user/login';

  static String getRadarOverviews({
    required int page,
    List<int> categories = const [],
    String? startDate,
    String? endDate,
    String? search,
  }) {
    String? cats;
    if (categories.isNotEmpty) {
      cats = '';
      for (var i = 0; i < categories.length; i++) {
        cats = cats! + categories[i].toString();
        if (i != categories.length - 1) {
          cats += ',';
        }
      }
    }
    return _baseUrl +
        '/radar' +
        _urlConcatGenerator([
          MapEntry('page', page.toString()),
          MapEntry('start', startDate),
          MapEntry('end', endDate),
          MapEntry('search', search),
          MapEntry('categories', cats),
        ]);
  }

  static String _urlConcatGenerator(List<MapEntry<String, String?>> additions) {
    String result = '';
    additions.removeWhere((element) => element.value == null);
    if (additions.isNotEmpty) {
      result += '?';
      for (var i = 0; i < additions.length; i++) {
        result += (additions[i].key + '=' + additions[i].value!);
        if (i != additions.length - 1) {
          result += '&';
        }
      }
    }
    return result;
  }
}