class RequestHelper {
  static const String baseUrl = 'https://api.didvan.app';
  static const String _baseUserUrl = baseUrl + '/user';
  static const String _baseRadarUrl = baseUrl + '/radar';
  static const String _baseNewsUrl = baseUrl + '/news';

  static const String confirmUsername = _baseUserUrl + '/confirmUsername';
  static const String login = _baseUserUrl + '/login';
  static const String directs = _baseUserUrl + '/direct';
  static const String userInfo = _baseUserUrl + '/info';
  static const String updateUserProfile = _baseUserUrl + '/profile/photo';
  static const String checkUsername = _baseUserUrl + '/CheckUsername';
  static const String updateProfile = _baseUserUrl + '/profile/edit';

  static const String directTypes = baseUrl + '/direct/types';
  static const String addComment = baseUrl + '/comment/add';
  static String feedbackComment(int id) => baseUrl + '/comment/$id/feedback';

  static String direct(int id) => _baseUserUrl + '/direct/$id';

  static String markRadar(int id) => _baseRadarUrl + '/$id/mark';
  static String radarDetails(int id) => _baseRadarUrl + '/$id';
  static String radarComments(int id) => _baseRadarUrl + '/$id/comments';
  static String markNews(int id) => _baseNewsUrl + '/$id/mark';
  static String newsDetails(int id) => _baseNewsUrl + '/$id';
  static String newsComments(int id) => _baseNewsUrl + '/$id/comments';
  static String radarOverviews({
    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 _baseRadarUrl +
        _urlConcatGenerator([
          MapEntry('page', page.toString()),
          MapEntry('start', startDate),
          MapEntry('end', endDate),
          MapEntry('search', search),
          MapEntry('categories', cats),
        ]);
  }

  static String newsOverviews({
    required int page,
    String? startDate,
    String? endDate,
    String? search,
  }) {
    String? cats;
    return _baseNewsUrl +
        _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;
  }
}