import React from 'react';
import { connect } from 'react-redux';
import PropTypes from 'prop-types';
import ImmutablePropTypes from 'react-immutable-proptypes';
import { fetchGroups } from '../../../actions/groups';
import { defineMessages, injectIntl } from 'react-intl';
import ImmutablePureComponent from 'react-immutable-pure-component';
import { Link } from 'react-router-dom';
import classNames from 'classnames';
import GroupCard from './card';
import GroupCreate from '../create';

const messages = defineMessages({
  heading: { id: 'column.groups', defaultMessage: 'Groups' },
  create: { id: 'groups.create', defaultMessage: 'Create group' },
  tab_featured: { id: 'groups.tab_featured', defaultMessage: 'Featured' },
  tab_member: { id: 'groups.tab_member', defaultMessage: 'Member' },
  tab_admin: { id: 'groups.tab_admin', defaultMessage: 'Manage' },
});

const mapStateToProps = (state, { activeTab }) => ({
  groupIds: state.getIn(['group_lists', activeTab]),
});

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

  static propTypes = {
    params: PropTypes.object.isRequired,
    activeTab: PropTypes.string.isRequired,
    showCreateForm: PropTypes.bool,
    dispatch: PropTypes.func.isRequired,
    groups: ImmutablePropTypes.map,
    groupIds: ImmutablePropTypes.list,
    intl: PropTypes.object.isRequired,
  };

  componentDidMount() {
    this.props.dispatch(fetchGroups(this.props.activeTab));
  }

  componentDidUpdate(oldProps) {
    if (this.props.activeTab && this.props.activeTab !== oldProps.activeTab) {
      this.props.dispatch(fetchGroups(this.props.activeTab));
    }
  }

  renderHeader() {
    const { intl, activeTab } = this.props;

    return (
      <div className='group-column-header'>
        <div className='group-column-header__cta'><Link to='/groups/create' className='button standard-small'>{intl.formatMessage(messages.create)}</Link></div>
        <div className='group-column-header__title'>{intl.formatMessage(messages.heading)}</div>

        <div className='column-header__wrapper'>
          <h1 className='column-header'>
            <Link to='/groups' className={classNames('btn grouped', { 'active': 'featured' === activeTab })}>
              {intl.formatMessage(messages.tab_featured)}
            </Link>

            <Link to='/groups/browse/member' className={classNames('btn grouped', { 'active': 'member' === activeTab })}>
              {intl.formatMessage(messages.tab_member)}
            </Link>

            <Link to='/groups/browse/admin' className={classNames('btn grouped', { 'active': 'admin' === activeTab })}>
              {intl.formatMessage(messages.tab_admin)}
            </Link>
          </h1>
        </div>
      </div>
    );
  }

  render() {
    const { groupIds, showCreateForm } = this.props;

    return (
      <div>
        {!showCreateForm && this.renderHeader()}
        {showCreateForm && <GroupCreate /> }

        <div className='group-card-list'>
          {groupIds.map(id => <GroupCard key={id} id={id} />)}
        </div>
      </div>
    );
  }

}
