// @flow

import React from 'react';
import { TabBarIOS } from 'react-native';
import { connect } from 'react-redux';

import { translate } from '../../base/i18n';
import { MeetingList } from '../../calendar-sync';
import { RecentList } from '../../recent-list';

import AbstractPagedList from './AbstractPagedList';
import styles from './styles';

const CALENDAR_ICON = require('../../../../images/calendar.png');

/**
 * A platform specific component to render a paged or tabbed list/view.
 *
 * @extends PagedList
 */
class PagedList extends AbstractPagedList {

    /**
     * Initializes a new {@code PagedList} instance.
     *
     * @inheritdoc
     */
    constructor(props) {
        super(props);

        // Bind event handlers so they are only bound once per instance.
        this._onTabSelected = this._onTabSelected.bind(this);
    }

    _onTabSelected: number => Function;

    /**
     * Constructs a callback to update the selected tab.
     *
     * @param {number} tabIndex - The selected tab.
     * @private
     * @returns {Function}
     */
    _onTabSelected(tabIndex) {
        return () => super._selectPage(tabIndex);
    }

    /**
     * Renders the entire paged list if calendar is enabled.
     *
     * @param {boolean} disabled - True if the rendered lists should be
     * disabled.
     * @returns {ReactElement}
     */
    _renderPagedList(disabled) {
        const { pageIndex } = this.state;
        const { t } = this.props;

        return (
            <TabBarIOS
                itemPositioning = 'fill'
                style = { styles.pagedList }>
                <TabBarIOS.Item
                    onPress = { this._onTabSelected(0) }
                    selected = { pageIndex === 0 }
                    systemIcon = 'history'>
                    <RecentList disabled = { disabled } />
                </TabBarIOS.Item>
                <TabBarIOS.Item
                    icon = { CALENDAR_ICON }
                    onPress = { this._onTabSelected(1) }
                    selected = { pageIndex === 1 }
                    title = { t('welcomepage.calendar') }>
                    <MeetingList disabled = { disabled } />
                </TabBarIOS.Item>
            </TabBarIOS>
        );
    }
}

export default translate(connect()(PagedList));