session-desktop/ts/protobuf/utils.ts

import { isNil } from 'lodash';

/**
 * This function is used to check that an optional property on a Protobuf object is not undefined or using a type-specific default value.
 * https://protobuf.dev/programming-guides/proto/#optional
 *
 * @param object - A Protobuf/JavaScript object
 * @param property - The property you want make sure is not undefined
 * @returns true if the property is defined or false if undefined or using a type-specific default value
 */
function hasDefinedProperty<A extends object, B extends PropertyKey & keyof A>(
  object: A,
  property: B
) {
  return !isNil(object) && Object.prototype.hasOwnProperty.call(object, property) !== false;
}

export const ProtobufUtils = {
  hasDefinedProperty,
};