next-ucap-messenger/projects/ucap-webmessenger-app/src/app/services/app.service.ts

import { Injectable } from '@angular/core';

import { filter, tap } from 'rxjs/operators';

import { Store } from '@ngrx/store';

import { ProtocolService } from '@ucap-webmessenger/protocol';
import {
  SVC_TYPE_LOGOUT,
  SSVC_TYPE_LOGOUT_RES
} from '@ucap-webmessenger/protocol-authentication';

import * as AuthenticationStore from '../store/account/authentication';

@Injectable()
export class AppService {
  constructor(
    private protocolService: ProtocolService,
    private store: Store<any>
  ) {
    this.protocolService.serverMessage
      .pipe(
        filter(
          res =>
            res.serviceType === SVC_TYPE_LOGOUT &&
            res.subServiceType === SSVC_TYPE_LOGOUT_RES
        ),
        tap(res => {
          this.store.dispatch(AuthenticationStore.logout());
        })
      )
      .subscribe();
  }

  public postInit(): Promise<void> {
    return new Promise<void>((resolve, reject) => {
      resolve();
    });
  }
}