web-console/src/hooks/use-clock.ts

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 { useState } from 'react';

import { useInterval } from './use-interval';

function getNowToSecond(): Date {
  const now = new Date();
  now.setMilliseconds(0);
  return now;
}

export function useClock(updateInterval = 1000) {
  const [now, setNow] = useState<Date>(getNowToSecond);

  useInterval(() => {
    setNow(getNowToSecond());
  }, updateInterval);

  return now;
}