/**
 * @file An OCapN client for the admin socket, from Node: it registers its
 * own gateway with the router there and reaches every other peer through
 * it. Run under SES (see test/lockdown.js).
 */
import { makeClient, swissnumFromBytes } from "@endo/ocapn";
import { newWebSocketRpcSession } from "capnweb";
import WebSocket from "ws";
import { locationOf, makeRpcNetLayer } from "./netlayer.js";

/**
 * An OCapN client on the admin socket: registers its own gateway with the
 * router there, and reaches every other peer through it.
 *
 * @param {string} adminSock
 * @param {string} designator
 * @param {{ verbose?: boolean }} [opts] OCapN logging
 */
export const connectClient = async (adminSock, designator, { verbose = false } = {}) => {
	const ws = new WebSocket(`ws+unix:${adminSock}:/`);
	await new Promise((resolve, reject) => (ws.once("open", resolve), ws.once("error", reject)));
	const session = newWebSocketRpcSession(ws);
	const ocapn = makeClient({ debugLabel: designator, verbose });
	const netlayer = await ocapn.registerNetlayer(
		makeRpcNetLayer({ designator, openGateway: (d) => session.gateway(d) }),
	);
	await session.register(designator, netlayer.gateway);
	const vatAdmin = await ocapn.enlivenSturdyRef(
		ocapn.makeSturdyRef(locationOf("vatAdmin"), swissnumFromBytes(new TextEncoder().encode("vatAdmin"))),
	);
	return { vatAdmin, close: () => (ocapn.shutdown(), ws.close()) };
};