department-of-veterans-affairs/vets-website

/*
The main application container. Responsibilities:
- Gating the application behind a login prompt (<RequiredLoginView />)
- Rendering various application states based on api call status

Assumptions that may need to be addressed:
- Assumes the only service required is MHV_AC
- Currently doesn't include a DowntimeNotification, but may want to given its external dependencies.
- Assumes the api call invoked by props.getAllMessages returns ALL messages. If pagination is handled by the server,
then additional functionality will need to be added to account for this.
*/

import React, { useEffect, useState } from 'react';
import { useDispatch, useSelector } from 'react-redux';
import { focusElement } from '@department-of-veterans-affairs/platform-utilities/ui';
import {
  DowntimeNotification,
  externalServices,
} from '@department-of-veterans-affairs/platform-monitoring/DowntimeNotification';
import {
  renderMHVDowntime,
  updatePageTitle,
} from '@department-of-veterans-affairs/mhv/exports';
import { mhvUrl } from '~/platform/site-wide/mhv/utilities';
import { isAuthenticatedWithSSOe } from '~/platform/user/authentication/selectors';
import { retrieveFolder } from '../actions/folders';
import {
  DefaultFolders as Folder,
  PageTitles,
  downtimeNotificationParams,
} from '../util/constants';
import DashboardUnreadMessages from '../components/Dashboard/DashboardUnreadMessages';
import WelcomeMessage from '../components/Dashboard/WelcomeMessage';
import FrequentlyAskedQuestions from '../components/FrequentlyAskedQuestions';
import AlertBackgroundBox from '../components/shared/AlertBackgroundBox';
import CernerTransitioningFacilityAlert from '../components/Alerts/CernerTransitioningFacilityAlert';

const LandingPageAuth = () => {
  const dispatch = useDispatch();
  const fullState = useSelector(state => state);
  const inbox = useSelector(state => state.sm.folders?.folder);
  const [prefLink, setPrefLink] = useState('');

  useEffect(
    () => {
      setPrefLink(mhvUrl(isAuthenticatedWithSSOe(fullState), 'preferences'));
    },
    [fullState],
  );

  useEffect(
    () => {
      dispatch(retrieveFolder(Folder.INBOX.id));
    },
    [dispatch],
  );

  useEffect(() => {
    focusElement(document.querySelector('h1'));
    updatePageTitle(PageTitles.DEFAULT_PAGE_TITLE_TAG);
  }, []);

  return (
    <div className="dashboard">
      <AlertBackgroundBox />
      <h1>Messages</h1>

      <DowntimeNotification
        appTitle={downtimeNotificationParams.appTitle}
        dependencies={[externalServices.mhvPlatform, externalServices.mhvSm]}
        render={renderMHVDowntime}
      />

      <CernerTransitioningFacilityAlert />

      <p className="va-introtext">
        Communicate privately and securely with your VA health care team online.
      </p>
      <DashboardUnreadMessages inbox={inbox} />
      <WelcomeMessage />
      <FrequentlyAskedQuestions prefLink={prefLink} />
    </div>
  );
};

export default LandingPageAuth;