openreplay/frontend/app/components/Session/Player/LivePlayer/AssistDuration.tsx

import React from 'react';
import { Duration } from 'luxon';
import {
  PlayerContext,
  ILivePlayerContext,
} from 'App/components/Session/playerContext';
import { observer } from 'mobx-react-lite';
import { useTranslation } from 'react-i18next';

function AssistDurationCont() {
  // @ts-ignore ??? TODO
  const { t } = useTranslation();
  const { store } = React.useContext<ILivePlayerContext>(PlayerContext);
  const { assistStart } = store.get();

  const [assistDuration, setAssistDuration] = React.useState('00:00');
  React.useEffect(() => {
    const interval = setInterval(() => {
      setAssistDuration(
        Duration.fromMillis(+new Date() - assistStart).toFormat('mm:ss'),
      );
    }, 500);
    return () => clearInterval(interval);
  }, []);
  return (
    <>
      {t('Elapsed')}&nbsp;{assistDuration}
    </>
  );
}

const AssistDuration = observer(AssistDurationCont);

export default AssistDuration;