import { type LoaderFunctionArgs, redirect } from 'react-router';
import { Outlet, useLoaderData, useNavigation } from 'react-router';
import { ProgressBar } from 'react-aria-components';

import { ErrorPopup } from '~/components/Error';
import Header from '~/components/Header';
import Footer from '~/components/Footer';
import Link from '~/components/Link';
import { cn } from '~/utils/cn';
import { loadContext } from '~/utils/config/headplane';
import { HeadscaleError, pull } from '~/utils/headscale';
import { destroySession, getSession } from '~/utils/sessions.server';

export async function loader({ request }: LoaderFunctionArgs) {
	const session = await getSession(request.headers.get('Cookie'));
	if (!session.has('hsApiKey')) {
		return redirect('/login');
	}

	try {
		await pull('v1/apikey', session.get('hsApiKey')!);
	} catch (error) {
		if (error instanceof HeadscaleError) {
			// Safest to just redirect to login if we can't pull
			return redirect('/login', {
				headers: {
					'Set-Cookie': await destroySession(session),
				},
			});
		}

		// Otherwise propagate to boundary
		throw error;
	}

	const context = await loadContext();
	return {
		config: context.config,
		url: context.headscalePublicUrl ?? context.headscaleUrl,
		debug: context.debug,
		user: session.get('user'),
	};
}

export default function Layout() {
	const data = useLoaderData<typeof loader>();
	const nav = useNavigation();

	return (
		<>
			<ProgressBar aria-label="Loading...">
				<div
					className={cn(
						'fixed top-0 left-0 z-50 w-1/2 h-1',
						'bg-blue-500 dark:bg-blue-400 opacity-0',
						nav.state === 'loading' && 'animate-loading opacity-100',
					)}
				/>
			</ProgressBar>
			<Header data={data} />
			<main className="container mx-auto overscroll-contain mt-4 mb-24">
				<Outlet />
			</main>
			<Footer {...data} />
		</>
	);
}

export function ErrorBoundary() {
	return (
		<>
			<Header />
			<ErrorPopup type="embedded" />
			<Footer url="Unknown" debug={false} />
		</>
	);
}