import 'package:yumi/app/constants/sc_global_config.dart';
import 'package:yumi/shared/data_sources/sources/local/user_manager.dart';

class SCH5UrlUtils {
  static String appendAppParams(String url) {
    return _appendQueryParams(url, appendLang: true, appendToken: true);
  }

  static String appendToken(String url) {
    return _appendQueryParams(url, appendLang: false, appendToken: true);
  }

  static String _appendQueryParams(
    String url, {
    required bool appendLang,
    required bool appendToken,
  }) {
    final trimmedUrl = url.trim();
    if (trimmedUrl.isEmpty) {
      return url;
    }

    final uri = Uri.tryParse(trimmedUrl);
    if (uri == null) {
      return url;
    }

    final queryParameters = <String, dynamic>{};
    uri.queryParametersAll.forEach((key, values) {
      queryParameters[key] = List<String>.from(values);
    });

    var hasChanges = false;
    if (appendLang && !_hasQueryKey(queryParameters, 'lang')) {
      queryParameters['lang'] = SCGlobalConfig.lang;
      hasChanges = true;
    }

    final token = AccountStorage().getToken();
    if (appendToken &&
        token.isNotEmpty &&
        !_hasQueryKey(queryParameters, 'token')) {
      queryParameters['token'] = token;
      hasChanges = true;
    }

    if (!hasChanges) {
      return url;
    }

    return uri.replace(queryParameters: queryParameters).toString();
  }

  static bool _hasQueryKey(Map<String, dynamic> queryParameters, String key) {
    final lowerKey = key.toLowerCase();
    return queryParameters.keys.any(
      (queryKey) => queryKey.toLowerCase() == lowerKey,
    );
  }
}