// scenarios/session-list.mjs — every connected web client gets session_list
// broadcasts on session state changes (agent hello / disconnect), including a
// client that subscribed after the session already existed.

import { agentClient, agentHello, sessionSnapshot, sid, webClient } from "../lib.mjs";

export async function run(ctx) {
  const { r, token, agentUrl, webUrl } = ctx;
  const id = sid("e2e-list");

  const first = await webClient(webUrl, token);
  const initA = await first.waitForFrame((f) => f.type === "session_list");
  r.check("first web client gets initial session_list", initA !== null);

  const second = await webClient(webUrl, token);
  const initB = await second.waitForFrame((f) => f.type === "session_list");
  r.check("second web client gets initial session_list", initB !== null);

  const agent = await agentClient(agentUrl, token);
  await agentHello(agent, sessionSnapshot(id));
  const onA = await first.waitForFrame(
    (f) => f.type === "session_list" && f.sessions?.some((s) => s.id === id && s.online === true),
  );
  r.check("first client receives session_list on new session", onA !== null);
  const onB = await second.waitForFrame(
    (f) => f.type === "session_list" && f.sessions?.some((s) => s.id === id && s.online === true),
  );
  r.check("second subscriber also receives the broadcast", onB !== null);

  agent.close();
  const offlineB = await second.waitForFrame(
    (f) => f.type === "session_list" && f.sessions?.some((s) => s.id === id && s.online === false),
  );
  r.check("session_list broadcast shows online=false after agent disconnect", offlineB !== null);

  first.close();
  second.close();
}