deserializeParam<T> function

dynamic deserializeParam<T>(String? param, ParamType paramType, bool isList)

Implementation

dynamic deserializeParam<T>(
  String? param,
  ParamType paramType,
  bool isList,
) {
  try {
    if (param == null) {
      return null;
    }
    if (isList) {
      final paramValues = json.decode(param);
      if (paramValues is! Iterable || paramValues.isEmpty) {
        return null;
      }
      return paramValues
          .whereType<String>()
          .map((p) => p)
          .map((p) => deserializeParam<T>(p, paramType, false))
          .where((p) => p != null)
          .map((p) => p! as T)
          .toList();
    }
    switch (paramType) {
      case ParamType.int:
        return int.tryParse(param);
      case ParamType.double:
        return double.tryParse(param);
      case ParamType.String:
        return param;
      case ParamType.bool:
        return param == 'true';
      case ParamType.DateTime:
        final milliseconds = int.tryParse(param);
        return milliseconds != null
            ? DateTime.fromMillisecondsSinceEpoch(milliseconds)
            : null;
      case ParamType.DateTimeRange:
        return dateTimeRangeFromString(param);
      case ParamType.LatLng:
        return latLngFromString(param);
      case ParamType.Color:
        return fromCssColor(param);
      case ParamType.FFPlace:
        return placeFromString(param);
      case ParamType.FFUploadedFile:
        return uploadedFileFromString(param);
      case ParamType.JSON:
        return json.decode(param);

      default:
        return null;
    }
  } catch (e) {
    print('Error deserializing parameter: $e');
    return null;
  }
}