/* eslint-disable @woocommerce/dependency-group */
/* eslint-disable @typescript-eslint/ban-ts-comment */
/**
 * External dependencies
 */
import classNames from 'classnames';
import { useSelect } from '@wordpress/data';
// @ts-ignore No types for this exist yet.
import { useEntityRecords, useEntityBlockEditor } from '@wordpress/core-data';
// @ts-ignore No types for this exist yet.
import { privateApis as routerPrivateApis } from '@wordpress/router';
// @ts-ignore No types for this exist yet.
import { store as editSiteStore } from '@wordpress/edit-site/build-module/store';
// @ts-ignore No types for this exist yet.
import { unlock } from '@wordpress/edit-site/build-module/lock-unlock';
// @ts-ignore No types for this exist yet.
import useSiteEditorSettings from '@wordpress/edit-site/build-module/components/block-editor/use-site-editor-settings';
import { BlockInstance } from '@wordpress/blocks';
/**
 * Internal dependencies
 */
import BlockPreview from './block-preview';

const { useHistory, useLocation } = unlock( routerPrivateApis );

type Page = {
	link: string;
	title: { rendered: string; raw: string };
	[ key: string ]: unknown;
};

// We only show the edit option when page count is <= MAX_PAGE_COUNT
// Performance of Navigation Links is not good past this value.
const MAX_PAGE_COUNT = 100;

export const BlockEditor = ( {} ) => {
	const history = useHistory();
	const location = useLocation();
	const settings = useSiteEditorSettings();

	const { templateType } = useSelect( ( select ) => {
		const { getEditedPostType } = unlock( select( editSiteStore ) );

		return {
			templateType: getEditedPostType(),
		};
	}, [] );

	const [ blocks ]: [ BlockInstance[] ] = useEntityBlockEditor(
		'postType',
		templateType
	);

	// // See packages/block-library/src/page-list/edit.js.
	const { records: pages } = useEntityRecords( 'postType', 'page', {
		per_page: MAX_PAGE_COUNT,
		_fields: [ 'id', 'link', 'menu_order', 'parent', 'title', 'type' ],
		// TODO: When https://core.trac.wordpress.org/ticket/39037 REST API support for multiple orderby
		// values is resolved, update 'orderby' to [ 'menu_order', 'post_title' ] to provide a consistent
		// sort.
		orderby: 'menu_order',
		order: 'asc',
	} );

	const onClickNavigationItem = ( event: MouseEvent ) => {
		const clickedPage =
			pages.find(
				( page: Page ) =>
					page.link === ( event.target as HTMLAnchorElement ).href
			) ||
			// Fallback to page title if the link is not found. This is needed for a bug in the block library
			// See https://github.com/woocommerce/team-ghidorah/issues/253#issuecomment-1665106817
			pages.find(
				( page: Page ) =>
					page.title.rendered ===
					( event.target as HTMLAnchorElement ).innerText
			);
		if ( clickedPage ) {
			history.push( {
				...location.params,
				postId: clickedPage.id,
				postType: 'page',
			} );
		} else {
			// Home page
			const { postId, postType, ...params } = location.params;
			history.push( {
				...params,
			} );
		}
	};

	return (
		<div className="woocommerce-customize-store__block-editor">
			{ blocks.map( ( block, index ) => {
				// Add padding to the top and bottom of the block preview.
				let additionalStyles = '';
				let hasActionBar = false;
				switch ( true ) {
					case index === 0:
						// header
						additionalStyles = `
				.editor-styles-wrapper{ padding-top: var(--wp--style--root--padding-top) };'
			`;
						break;

					case index === blocks.length - 1:
						// footer
						additionalStyles = `
				.editor-styles-wrapper{ padding-bottom: var(--wp--style--root--padding-bottom) };
			`;
						break;
					default:
						hasActionBar = true;
				}

				return (
					<div
						key={ block.clientId }
						className={ classNames(
							'woocommerce-block-preview-container',
							{
								'has-action-menu': hasActionBar,
							}
						) }
					>
						<BlockPreview
							blocks={ block }
							settings={ settings }
							additionalStyles={ additionalStyles }
							onClickNavigationItem={ onClickNavigationItem }
						/>
					</div>
				);
			} ) }
		</div>
	);
};