/*
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *     http://www.apache.org/licenses/LICENSE-2.0
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import { MessageDataTypeMap } from './message-data-type-map.interface';

type KeysOfUnion<T> = T extends T ? keyof T : never;

export interface WebSocketMessage<
  T extends Partial<Record<keyof MessageDataTypeMap, unknown>>,
  Op extends KeysOfUnion<T> = KeysOfUnion<T>
> {
  op: Op;
  data?: T[Op];
  ticket?: string; // default 'anonymous'
  principal?: string; // default 'anonymous'
  roles?: string; // default '[]'
  msgId?: string;
}
