import type { Handle } from '@sveltejs/kit';

export const handle: Handle = async ({ event, resolve }) => {
	// Correct origin behind Nginx
	const host = event.request.headers.get('x-forwarded-host') ?? event.request.headers.get('host');
	const proto = event.request.headers.get('x-forwarded-proto') ?? 'https';
	const origin = `${proto}://${host}`;

	// Example: force HTTPS (optional, Nginx should already do this)
	if (proto === 'http') {
		return new Response(null, {
			status: 308,
			headers: {
				Location: origin + event.url.pathname + event.url.search
			}
		});
	}

	// Proceed with default behavior
	return resolve(event);
};