import { User } from 'oidc-client';

import { Authentication } from '../interface/hub.type';
import { ServiceBus } from '../interface/service-bus.type';
import { ServiceBusClient } from './service-bus-client';

/**
 * 认证
 *
 */
export class AuthenticationService implements Authentication {
  serviceBus: ServiceBus;
  coreAuthAppId = `core/authentication`;
  // 主要是认证信息
  private _user!: User | null;

  private serviceBusClient: ServiceBusClient;

  constructor(serviceBus: ServiceBus, coreAuthAppId?: string) {
    this.serviceBus = serviceBus;
    const _coreAuthAppId = coreAuthAppId ? coreAuthAppId : this.coreAuthAppId;
    this.serviceBusClient = serviceBus.getClient(_coreAuthAppId);
  }

  signIn(): Promise<void> {
    return this.getServiceBusClient()
      .request({ type: 'signIn' })
      .toPromise()
      .then((s) => {});
  }

  signOut(): Promise<void> {
    return this.getServiceBusClient()
      .request({ type: 'signOut' })
      .toPromise()
      .then((s) => {});
  }

  setAuthentication(user: User) {
    this._user = user;
  }

  getAuthentication(): User | null {
    if (this._user) {
      return this._user;
    }
    return null;
  }

  // 主应用加载时，认证子应用不一定加载完
  private getServiceBusClient() {
    if (this.serviceBusClient.initState === 'success') {
      return this.serviceBusClient;
    }
    this.serviceBusClient.init();
    return this.serviceBusClient;
  }
}