/**
 * Copyright (c) 2020-present, Goldman Sachs
 *
 * Licensed 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 { useEffect, useRef } from 'react';

export const PanelLoadingIndicator: React.FC<{
  isLoading: boolean;
}> = (props) => {
  const { isLoading } = props;
  const ref = useRef<HTMLDivElement>(null);

  useEffect(() => {
    if (ref.current) {
      if (isLoading) {
        ref.current.parentElement?.classList.add(
          'panel-loading-indicator__container',
        );
      } else {
        ref.current.parentElement?.classList.remove(
          'panel-loading-indicator__container',
        );
      }
    }
  }, [isLoading]);

  return (
    <div
      ref={ref}
      className={`panel-loading-indicator${isLoading ? '' : '--disabled'}`}
    />
  );
};