import React, { Component, PropTypes } from 'react';
import {
    Layout,
    Drawer,
    Header,
    Navigation,
    Content,
    Footer,
    FooterSection,
    FooterDropDownSection,
    FooterLinkList,
    Grid,
    Cell,
    Icon,
} from 'react-mdl';
import { Link } from 'react-router';
import styles from './styles.scss';
import ErrorContainer from './error/error-container';

import UserContainer from './user/user-container';
import ShowUserContainer from './user/show-user-container';
import { ScrollContainer } from 'react-router-scroll';

function replace(input, params) {
    if (!params) {
        return input;
    }
    Object.keys(params).forEach(key => {
        input = input.replace(`:${key}`, params[key]);
    });
    return input;
}

export default class App extends Component {
    static propTypes = {
        location: PropTypes.object.isRequired,
        params: PropTypes.object.isRequired,
        routes: PropTypes.array.isRequired,
    };

    static contextTypes = {
        router: React.PropTypes.object,
    };

    componentWillReceiveProps(nextProps) {
        if (this.props.location.pathname !== nextProps.location.pathname) {
            clearTimeout(this.timer);
            this.timer = setTimeout(() => {
                const layout = document.querySelector('.mdl-js-layout');
                const drawer = document.querySelector('.mdl-layout__drawer');
                // hack, might get a built in alternative later
                if (drawer.classList.contains('is-visible')) {
                    layout.MaterialLayout.toggleDrawer();
                }
            }, 10);
        }
    }

    getSections() {
        const { routes, params } = this.props;
        const unique = {};
        const result = routes
            .splice(1)
            .map(routeEntry => ({
                name: replace(routeEntry.pageTitle, params),
                link: replace(routeEntry.link || routeEntry.path, params),
            }))
            .filter(entry => {
                if (!unique[entry.link]) {
                    unique[entry.link] = true;
                    return true;
                }
                return false;
            });

        // mutate document.title:
        document.title = result
            .map(e => e.name)
            .reverse()
            .concat('Unleash')
            .join(' – ');

        return result;
    }

    getTitleWithLinks() {
        const result = this.getSections();
        return (
            <span>
                {result.map((entry, index) => (
                    <span
                        key={entry.link + index}
                        className={
                            index > 0 ? 'mdl-layout--large-screen-only' : ''
                        }
                    >
                        {index > 0 ? ' › ' : null}
                        <Link
                            className={[
                                styles.headerTitleLink,
                                'mdl-color-text--primary-contrast',
                            ].join(' ')}
                            to={entry.link}
                        >
                            {entry.name}
                        </Link>
                    </span>
                ))}
            </span>
        );
    }

    render() {
        const shouldUpdateScroll = (prevRouterProps, { location }) => {
            if (
                prevRouterProps &&
                location.pathname !== prevRouterProps.location.pathname
            ) {
                return location.action === 'POP';
            } else {
                return [0, 0];
            }
        };
        const createListItem = (
            path,
            caption,
            icon,
            isDrawerNavigation = false
        ) => {
            const linkColor =
                isDrawerNavigation && this.context.router.isActive(path)
                    ? 'mdl-color-text--black'
                    : 'mdl-color-text--grey-900';
            const iconColor =
                isDrawerNavigation && this.context.router.isActive(path)
                    ? 'mdl-color-text--black'
                    : 'mdl-color-text--grey-600';
            return (
                <Link
                    to={path}
                    className={
                        isDrawerNavigation &&
                        [styles.navigationLink, linkColor].join(' ')
                    }
                >
                    {icon && (
                        <Icon
                            name={icon}
                            className={
                                isDrawerNavigation &&
                                [styles.navigationIcon, iconColor].join(' ')
                            }
                        />
                    )}
                    {caption}
                </Link>
            );
        };

        return (
            <div className={styles.container}>
                <UserContainer />
                <Layout fixedHeader>
                    <Header title={this.getTitleWithLinks()}>
                        <Navigation>
                            <ShowUserContainer />
                        </Navigation>
                    </Header>
                    <Drawer className="mdl-color--white">
                        <span
                            className={[
                                styles.drawerTitle,
                                'mdl-layout-title',
                            ].join(' ')}
                        >
                            <img
                                src="public/logo.png"
                                width="32"
                                height="32"
                                className={styles.drawerTitleLogo}
                            />
                            <span className={styles.drawerTitleText}>
                                Unleash
                            </span>
                        </span>
                        <hr />
                        <Navigation className={styles.navigation}>
                            {createListItem(
                                '/features',
                                'Feature Toggles',
                                'list',
                                true
                            )}
                            {createListItem(
                                '/strategies',
                                'Strategies',
                                'extension',
                                true
                            )}
                            {createListItem(
                                '/history',
                                'Event History',
                                'history',
                                true
                            )}
                            {createListItem(
                                '/archive',
                                'Archived Toggles',
                                'archive',
                                true
                            )}
                            {createListItem(
                                '/applications',
                                'Applications',
                                'apps',
                                true
                            )}
                        </Navigation>
                        <hr />
                        <Navigation className={styles.navigation}>
                            <a
                                href="https://github.com/Unleash"
                                target="_blank"
                                className={[
                                    styles.navigationLink,
                                    'mdl-color-text--grey-900',
                                ].join(' ')}
                            >
                                <i
                                    className={[
                                        'material-icons',
                                        styles.navigationIcon,
                                        styles.iconGitHub,
                                    ].join(' ')}
                                />GitHub
                            </a>
                        </Navigation>
                    </Drawer>
                    <ScrollContainer
                        scrollKey="container"
                        shouldUpdateScroll={shouldUpdateScroll}
                    >
                        <Content className="mdl-color--grey-50">
                            <Grid noSpacing className={styles.content}>
                                <Cell col={12}>
                                    {this.props.children}
                                    <ErrorContainer />
                                </Cell>
                            </Grid>
                            <Footer size="mega">
                                <FooterSection type="middle">
                                    <FooterDropDownSection title="Menu">
                                        <FooterLinkList>
                                            {createListItem(
                                                '/features',
                                                'Feature Toggles'
                                            )}
                                            {createListItem(
                                                '/strategies',
                                                'Strategies'
                                            )}
                                            {createListItem(
                                                '/history',
                                                'Event History'
                                            )}
                                            {createListItem(
                                                '/archive',
                                                'Archived Toggles'
                                            )}
                                            {createListItem(
                                                '/applications',
                                                'Applications'
                                            )}
                                        </FooterLinkList>
                                    </FooterDropDownSection>
                                    <FooterDropDownSection title="Clients">
                                        <FooterLinkList>
                                            <a href="https://github.com/Unleash/unleash-client-node/">
                                                Node.js
                                            </a>
                                            <a href="https://github.com/Unleash/unleash-client-java/">
                                                Java
                                            </a>
                                            <a href="https://github.com/Unleash/unleash-client-go/">
                                                Go
                                            </a>
                                        </FooterLinkList>
                                    </FooterDropDownSection>
                                </FooterSection>
                                <FooterSection type="bottom" logo="Unleash">
                                    <FooterLinkList>
                                        <a
                                            href="https://github.com/Unleash/unleash/"
                                            target="_blank"
                                        >
                                            GitHub
                                        </a>
                                        <a
                                            href="https://finn.no"
                                            target="_blank"
                                        >
                                            <small>A product by</small> FINN.no
                                        </a>
                                    </FooterLinkList>
                                </FooterSection>
                            </Footer>
                        </Content>
                    </ScrollContainer>
                </Layout>
            </div>
        );
    }
}