/*
 * SonarQube
 * Copyright (C) 2009-2018 SonarSource SA
 * mailto:info AT sonarsource DOT com
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */
import * as React from 'react';
import * as classNames from 'classnames';
import { translate, translateWithParameters } from '../../helpers/l10n';
import { formatMeasure } from '../../helpers/measures';

interface Props {
  count: number;
  loadMore?: () => void;
  ready?: boolean;
  total: number;
}

export default function ListFooter({ ready = true, ...props }: Props) {
  const handleLoadMore = (event: React.SyntheticEvent<HTMLElement>) => {
    event.preventDefault();
    event.currentTarget.blur();
    if (props.loadMore) {
      props.loadMore();
    }
  };

  const hasMore = props.total > props.count;
  const loadMoreLink = (
    <a className="spacer-left" href="#" onClick={handleLoadMore}>
      {translate('show_more')}
    </a>
  );
  const className = classNames('spacer-top note text-center', {
    'new-loading': !ready
  });

  return (
    <footer className={className}>
      {translateWithParameters(
        'x_of_y_shown',
        formatMeasure(props.count, 'INT', null),
        formatMeasure(props.total, 'INT', null)
      )}
      {props.loadMore != null && hasMore ? loadMoreLink : null}
    </footer>
  );
}