headplane/app/routes/util/healthz.ts

import { loadContext } from '~/utils/config/headplane'
import { HeadscaleError, pull } from '~/utils/headscale'
import { data } from '@remix-run/node'
import log from '~/utils/log'

export async function loader() {
	const context = await loadContext()

	try {
		// Doesn't matter, we just need a 401
		await pull('v1/', 'wrongkey')
	} catch (e) {
		if (!(e instanceof HeadscaleError)) {
			log.debug('Healthz', 'Headscale is not reachable')
			return data({
				status: 'NOT OK', 
				error: e.message
			}, { status: 500 })
		}
	}

	return { status: 'OK' }
}