import xs, { Stream } from 'xstream';
import { run } from '@cycle/run';
import { button, div, span, makeDOMDriver, DOMSource, VNode } from '@cycle/dom';

import { modalify, ModalAction } from '../../../src/modalify';

interface Sources {
    DOM: DOMSource;
}

interface Sinks {
    DOM?: Stream<VNode>;
    modal?: Stream<ModalAction>;
}

/**
 * modalAnimationWrapper - wraps the component embed in the modal
 * will handle the enter and leave animation of the modal
 *
 */
function modalAnimationWrapper(component: (s: Sources) => Sinks) {
    return function(sources: Sources) {
        const instance = component(sources);

        const animation = {
            transition: 'transform 1s',
            transform: 'translateY(-100%)',
            delayed: {
                transform: 'translateY(0)'
            },
            remove: {
                transform: 'translateY(-100%)'
            }
        };

        return {
            ...instance,
            DOM: instance.DOM.map((vnode: VNode) =>
                div(
                    '.modal-container',
                    { style: animation },
                    div('.modal-content', vnode)
                )
            )
        };
    };
}

function main({ DOM }: Sources): Sinks {
    return {
        DOM: xs.of(button('.button', ['open modal'])),
        modal: DOM.select('.button')
            .events('click')
            .mapTo({
                type: 'open',
                component: modalAnimationWrapper(modal)
            } as ModalAction)
    };
}

function modal({ DOM }: Sources): Sinks {
    return {
        DOM: xs.of(
            div('.div', [
                span('.span', ['This is a modal. Yeah? :)']),
                button('.close', ['close'])
            ])
        ),
        modal: DOM.select('.close')
            .events('click')
            .mapTo({ type: 'close' } as ModalAction)
    };
}

const modalifiedMain = modalify(main, {
    name: 'modal',
    DOMDriverKey: 'DOM',
    center: false
});

run(modalifiedMain, {
    DOM: makeDOMDriver('#app')
});