/**
 * External dependencies
 */
import '@wordpress/notices';
import { render } from '@wordpress/element';
import { CustomerEffortScoreTracksContainer } from '@woocommerce/customer-effort-score';
import {
	withCurrentUserHydration,
	withSettingsHydration,
} from '@woocommerce/data';

/**
 * Internal dependencies
 */
import './stylesheets/_index.scss';
import { getAdminSetting } from '~/utils/admin-settings';
import { PageLayout, EmbedLayout, PrimaryLayout as NoticeArea } from './layout';
import { EmbeddedBodyLayout } from './embedded-body-layout';
import { WcAdminPaymentsGatewaysBannerSlot } from './payments/payments-settings-banner-slotfill';
import { WcAdminConflictErrorSlot } from './settings/conflict-error-slotfill.js';
import './xstate.js';
import { deriveWpAdminBackgroundColours } from './utils/derive-wp-admin-background-colours';

// Modify webpack pubilcPath at runtime based on location of WordPress Plugin.
// eslint-disable-next-line no-undef,camelcase
__webpack_public_path__ = global.wcAdminAssets.path;

// Modify webpack to append the ?ver parameter to JS chunk
// https://webpack.js.org/api/module-variables/#__webpack_get_script_filename__-webpack-specific
// eslint-disable-next-line no-undef,camelcase
const oldGetScriptFileNameFn = __webpack_get_script_filename__;
// eslint-disable-next-line no-undef,camelcase
__webpack_get_script_filename__ = ( chunk ) => {
	const filename = oldGetScriptFileNameFn( chunk );
	return `${ filename }?ver=${ window.wcAdminAssets.version }`;
};

// Modify webpack to append the ?ver parameter to CSS chunk hrefs generated by mini-css-extract-plugin
// eslint-disable-next-line no-undef,camelcase
const oldMinCssFn = __webpack_require__.miniCssF;
// eslint-disable-next-line no-undef,camelcase
__webpack_require__.miniCssF = ( chunkId ) => {
	const filename = oldMinCssFn( chunkId );
	return `${ filename }?ver=${ window.wcAdminAssets.version }`;
};

const appRoot = document.getElementById( 'root' );
const embeddedRoot = document.getElementById( 'woocommerce-embedded-root' );
const settingsGroup = 'wc_admin';
const hydrateUser = getAdminSetting( 'currentUserData' );

deriveWpAdminBackgroundColours();

if ( appRoot ) {
	let HydratedPageLayout = withSettingsHydration(
		settingsGroup,
		window.wcSettings.admin
	)( PageLayout );
	const preloadSettings = window.wcSettings.admin
		? window.wcSettings.admin.preloadSettings
		: false;
	const hydrateSettings = preloadSettings && preloadSettings.general;

	if ( hydrateSettings ) {
		HydratedPageLayout = withSettingsHydration( 'general', {
			general: preloadSettings.general,
		} )( HydratedPageLayout );
	}
	if ( hydrateUser ) {
		HydratedPageLayout =
			withCurrentUserHydration( hydrateUser )( HydratedPageLayout );
	}
	render( <HydratedPageLayout />, appRoot );
} else if ( embeddedRoot ) {
	let HydratedEmbedLayout = withSettingsHydration(
		settingsGroup,
		window.wcSettings.admin
	)( EmbedLayout );
	if ( hydrateUser ) {
		HydratedEmbedLayout =
			withCurrentUserHydration( hydrateUser )( HydratedEmbedLayout );
	}
	// Render the header.
	render( <HydratedEmbedLayout />, embeddedRoot );

	embeddedRoot.classList.remove( 'is-embed-loading' );

	// Render notices just above the WP content div.
	const wpBody = document.getElementById( 'wpbody-content' );

	const isWcAdminSettingsPaymentPage = document.getElementById(
		'wc_payment_gateways_banner_slotfill'
	);

	if ( isWcAdminSettingsPaymentPage ) {
		render(
			WcAdminPaymentsGatewaysBannerSlot(),
			isWcAdminSettingsPaymentPage
		);
	}

	const isTaxPage = document.getElementById( 'wc_conflict_error_slotfill' );

	if ( isTaxPage ) {
		render( WcAdminConflictErrorSlot(), isTaxPage );
	}

	const wrap =
		wpBody.querySelector( '.wrap.woocommerce' ) ||
		document.querySelector( '#wpbody-content > .woocommerce' ) ||
		wpBody.querySelector( '.wrap' );
	const noticeContainer = document.createElement( 'div' );

	render(
		<div className="woocommerce-layout">
			<NoticeArea />
		</div>,
		wpBody.insertBefore( noticeContainer, wrap )
	);
	const embeddedBodyContainer = document.createElement( 'div' );
	render(
		<EmbeddedBodyLayout />,
		wpBody.insertBefore( embeddedBodyContainer, wrap.nextSibling )
	);
}

// Render the CustomerEffortScoreTracksContainer only if
// the feature flag is enabled.
if (
	window.wcAdminFeatures &&
	window.wcAdminFeatures[ 'customer-effort-score-tracks' ] === true
) {
	// Set up customer effort score survey.
	( function () {
		const root = appRoot || embeddedRoot;

		render(
			<CustomerEffortScoreTracksContainer />,
			root.insertBefore( document.createElement( 'div' ), null )
		);
	} )();
}