/*
 * SonarQube
 * Copyright (C) 2009-2020 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 { DocVersion } from '../@types/types';
import ChevronDownIcon from './icons/ChevronDownIcon';
import ChevronUpIcon from './icons/ChevronUpIcon';
import OutsideClickHandler from './OutsideClickHandler';

interface Props {
  isOnCurrentVersion: boolean;
  selectedVersionValue: string;
  versions: DocVersion[];
}

interface State {
  open: boolean;
}

export default class VersionSelect extends React.PureComponent<Props, State> {
  state = { open: false };

  handleClick = () => {
    this.setState(state => ({ open: !state.open }));
  };

  handleClickOutside = () => {
    this.setState({ open: false });
  };

  render() {
    const { isOnCurrentVersion, selectedVersionValue, versions } = this.props;
    const hasVersions = versions.length > 1;

    return (
      <div className="version-select">
        <button onClick={this.handleClick} type="button">
          Docs <span className={isOnCurrentVersion ? 'current' : ''}>{selectedVersionValue}</span>
          {hasVersions && !this.state.open && <ChevronDownIcon size={10} />}
          {hasVersions && this.state.open && <ChevronUpIcon size={10} />}
        </button>
        {this.state.open && hasVersions && (
          <OutsideClickHandler onClickOutside={this.handleClickOutside}>
            <ul>
              {versions.map(version => {
                return (
                  <li key={version.value}>
                    <a href={version.current ? '/' : '/' + version.value}>
                      <span className={version.current ? 'current' : ''}>{version.value}</span>
                    </a>
                  </li>
                );
              })}
            </ul>
          </OutsideClickHandler>
        )}
      </div>
    );
  }
}