import PropTypes from 'prop-types';
import React from 'react';
import ImmutablePropTypes from 'react-immutable-proptypes';
import ImmutablePureComponent from 'react-immutable-pure-component';
import { injectIntl } from 'react-intl';
import { connect } from 'react-redux';
import { createSelector } from 'reselect';

const getOrderedLists = createSelector([state => state.get('lists')], lists => {
  if (!lists) {
    return lists;
  }

  return lists.toList().filter(item => !!item).sort((a, b) => a.get('title').localeCompare(b.get('title')));
});

const mapStateToProps = state => ({
  lists: getOrderedLists(state),
});

export default @connect(mapStateToProps)
@injectIntl
class Lists extends ImmutablePureComponent {

  static propTypes = {
    params: PropTypes.object.isRequired,
    dispatch: PropTypes.func.isRequired,
    lists: ImmutablePropTypes.list,
    intl: PropTypes.object.isRequired,
    multiColumn: PropTypes.bool,
  };

  render () {
    return <div>Hello world</div>;
  }

}