"use strict";

import systeminfo from 'systeminformation';

import hash from '../crypto/hash.mjs';

/**
 * Returns what (should) be a reproducible UUID for each host that it runs on.
 * @return {string}
 */
export default async function() {
	let serial = (await systeminfo.system()).serial;
	let uuid = await systeminfo.uuid();
	return hash("sha256", "base64",
		`${serial}@${uuid.os}@${uuid.hardware}@${uuid.macs.join("#")}`
	).replace(/[+/=]/g, "");
}