enum Environment {
  production,
}

class AppConfig {
  static const Environment currentEnvironment = Environment.production;
  static const String appName = '本地打包';
  static const String appLogo = '';

  static final Map<Environment, List<String>> _environmentHosts = {
    Environment.production: [
      'h5-im.imharry.work',
    ],
  };

  static List<String> get environmentHosts {
    return _environmentHosts[currentEnvironment] ?? const [];
  }

  static String homeUrl({String? appName, String? appLogo}) {
    final host = environmentHosts.isNotEmpty
        ? environmentHosts.first
        : 'h5-im.imharry.work';
    final uri = Uri.parse(_normalizeHomeUrl(host));
    final queryParameters = Map<String, String>.from(uri.queryParameters)
      ..['_h5_t'] = DateTime.now().millisecondsSinceEpoch.toString();

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

  static String withFreshShellParams(String url) {
    final uri = Uri.parse(url);
    final queryParameters = Map<String, String>.from(uri.queryParameters);
    queryParameters.remove('flutter_shell');
    queryParameters.remove('shell_cache_bust');
    queryParameters.remove('shell_app_name');
    queryParameters.remove('shell_app_logo');
    final fragmentParameters = Uri.splitQueryString(uri.fragment);
    fragmentParameters.remove('shell_app_name');
    fragmentParameters.remove('shell_app_logo');

    return uri
        .replace(
          queryParameters: queryParameters,
          fragment: fragmentParameters.isEmpty
              ? ''
              : Uri(queryParameters: fragmentParameters).query,
        )
        .toString();
  }

  static String _normalizeHomeUrl(String host) {
    final value = host.trim();
    final normalized =
        value.startsWith('http://') || value.startsWith('https://')
            ? value
            : 'https://$value';
    final uri = Uri.parse(normalized);
    final path = uri.path.isEmpty ? '/' : uri.path;
    return uri.replace(path: path).toString();
  }
}