import React, { Component } from 'react';
import PropTypes from 'prop-types';
import isEmpty from 'lodash/isEmpty';
import Components from 'react-styleguidist/src/rsg-components/Components';
import TableOfContents from 'react-styleguidist/src/rsg-components/TableOfContents';
import Message from 'react-styleguidist/src/rsg-components/Message';
import StyleGuideRenderer from 'react-styleguidist/src/rsg-components/StyleGuide/StyleGuideRenderer';
import { HOMEPAGE, DOCS_CONFIG } from 'react-styleguidist/scripts/consts';

import * as elements from '../../src/components/elements';
import * as collections from '../../src/components/collections';
import * as views from '../../src/components/views';
import * as modules from '../../src/components/modules';

/**
 * Hack to avoid requiring semantic stuff in examples
 */
function globalizeCollections() {
    window.Field = collections.Field;
    window.Fields = collections.Fields;
    window.Form = collections.Form;

    window.Grid = collections.Grid;
    window.Row = collections.Row;
    window.Column = collections.Column;

    window.Message = collections.Message;

    window.Table = collections.Table;
    window.Td = collections.Td;
    window.Tr = collections.Tr;

    window.Breadcrumb = collections.Breadcrumb;
    window.BreadcrumbDivider = collections.BreadcrumbDivider;
    window.BreadcrumbSection = collections.BreadcrumbSection;
}

function globalizeElements() {
    window.Button = elements.Button;
    window.Buttons = elements.Buttons;
    window.IconButton = elements.IconButton;
    window.LabeledButton = elements.LabeledButton;
    window.SocialButton = elements.SocialButton;

    window.Divider = elements.Divider;

    window.Flag = elements.Flag;

    window.Header = elements.Header;

    window.SubHeader = elements.SubHeader;

    window.Icon = elements.Icon;
    window.Icons = elements.Icons;

    window.Image = elements.Image;
    window.Images = elements.Images;

    window.Input = elements.Input;

    window.Label = elements.Label;
    window.Labels = elements.Labels;
    window.Detail = elements.Detail;

    window.List = elements.List;
    window.ListItem = elements.ListItem;

    window.Loader = elements.Loader;

    window.Rail = elements.Rail;

    window.Reveal = elements.Reveal;

    window.Segment = elements.Segment;
    window.Segments = elements.Segments;

    window.Step = elements.Step;
    window.Steps = elements.Steps;

    window.Actions = elements.Actions;
    window.Author = elements.Author;
    window.Container = elements.Container;
    window.Content = elements.Content;
    // window.Date = elements.Date // conflict with standard Date()
    window.Description = elements.Description;
    window.Meta = elements.Meta;
    window.Summary = elements.Summary;
    window.Text = elements.Text;
}

function globalizeModules() {
    window.Accordion = modules.Accordion;
    window.AccordionBody = modules.AccordionBody;
    window.AccordionTitle = modules.AccordionTitle;

    window.Checkbox = modules.Checkbox;
    window.CheckboxFields = modules.CheckboxFields;

    window.Dimmer = modules.Dimmer;
    window.Dimmable = modules.Dimmable;

    window.DropdownElement = modules.DropdownElement;
    window.DropdownMenu = modules.DropdownMenu;
    window.Select = modules.Select;
    window.Option = modules.Option;

    window.Modal = modules.Modal;

    window.Popup = modules.Popup;
    window.Bar = modules.Bar;
    window.Progress = modules.Progress;

    window.Rating = modules.Rating;

    window.Search = modules.Search;

    window.Tab = modules.Tab;
    window.TabMenu = modules.TabMenu;
    window.Tabs = modules.Tabs;
}

function globalizeViews() {
    window.Card = views.Card;
    window.Cards = views.Cards;

    window.Comment = views.Comment;
    window.Comments = views.Comments;

    window.Event = views.Event;
    window.Feed = views.Feed;

    window.Item = views.Item;
    window.Items = views.Items;

    window.Menu = views.Menu;
    window.MenuItem = views.MenuItem;

    window.Value = views.Value;
    window.Statistic = views.Statistic;
    window.Statistics = views.Statistics;
}

function globalizeSemantic() {
    globalizeCollections();
    globalizeElements();
    globalizeModules();
    globalizeViews();
}
export default class StyleGuide extends Component {
    static propTypes = {
        config: PropTypes.object.isRequired,
        components: PropTypes.array.isRequired,
        sections: PropTypes.array.isRequired,
        sidebar: PropTypes.bool
    };

    static childContextTypes = {
        codeKey: PropTypes.number.isRequired,
        config: PropTypes.object.isRequired
    };

    static defaultProps = {
        sidebar: true
    };

    constructor(props) {
        super(props);
        globalizeSemantic();
    }

    getChildContext() {
        return {
            codeKey: this.props.codeKey,
            config: this.props.config
        };
    }

    renderComponents(components, sections, sidebar) {
        if (!isEmpty(components) || !isEmpty(sections)) {
            return (
                <Components
                    components={components}
                    sections={sections}
                    sidebar={sidebar}
                />
            );
        }

        return (
            <Message>
                No components or sections found.
                Check [the `components` and `sections` options]({DOCS_CONFIG}) in your style guide config.
            </Message>
        );
    }

    renderTableOfContents(components, sections) {
        return <TableOfContents components={components} sections={sections} />;
    }

    render() {
        let { config, components, sections, sidebar } = this.props;

        return (
            <StyleGuideRenderer
                title={config.title}
                homepageUrl={HOMEPAGE}
                components={this.renderComponents(components, sections, sidebar)}
                sections={sections}
                toc={this.renderTableOfContents(components, sections)}
                sidebar={sidebar}
            />
        );
    }
}