packages/runtime-host/src/server/session-continuity-service.ts

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 type { SubscriptionFrame } from '../protocol/index.js';
import type { SessionContinuityOperationHandlerMap } from './operation-dispatcher.js';

export interface SessionContinuityFrameSink {
  send(frame: SubscriptionFrame): Promise<void>;
}

export interface SessionContinuityConnection {
  activate(subscriptionId: string): void;
  abort(subscriptionId: string): void;
  close(): void;
}

export interface SessionContinuityService {
  readonly handlers: SessionContinuityOperationHandlerMap;
  attachConnection(
    connectionId: string,
    sink: SessionContinuityFrameSink,
  ): SessionContinuityConnection;
}