/*
 * Copyright 2021 gRPC authors.
 *
 * 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 { ServiceDefinition } from './make-client';
import { Server, UntypedServiceImplementation } from './server';

interface GetServiceDefinition {
  (): ServiceDefinition;
}

interface GetHandlers {
  (): UntypedServiceImplementation;
}

const registeredAdminServices: {
  getServiceDefinition: GetServiceDefinition;
  getHandlers: GetHandlers;
}[] = [];

export function registerAdminService(
  getServiceDefinition: GetServiceDefinition,
  getHandlers: GetHandlers
) {
  registeredAdminServices.push({ getServiceDefinition, getHandlers });
}

export function addAdminServicesToServer(server: Server): void {
  for (const { getServiceDefinition, getHandlers } of registeredAdminServices) {
    server.addService(getServiceDefinition(), getHandlers());
  }
}