import test from "node:test";
import assert from "node:assert/strict";
import os from "node:os";
import path from "node:path";
import { mkdtemp, rm } from "node:fs/promises";

let runtimeRoot = "";
let readState: (typeof import("../src/lib/boss-data"))["readState"];
let writeState: (typeof import("../src/lib/boss-data"))["writeState"];
let updateUserSettings: (typeof import("../src/lib/boss-data"))["updateUserSettings"];
let subscribeBossEvents: (typeof import("../src/lib/boss-events"))["subscribeBossEvents"];

async function setup() {
  if (runtimeRoot) return;

  runtimeRoot = await mkdtemp(path.join(os.tmpdir(), "boss-settings-events-"));
  process.env.BOSS_RUNTIME_ROOT = runtimeRoot;
  process.env.BOSS_STATE_FILE = path.join(runtimeRoot, "boss-state.json");

  const [data, events] = await Promise.all([
    import("../src/lib/boss-data.ts"),
    import("../src/lib/boss-events.ts"),
  ]);
  readState = data.readState;
  writeState = data.writeState;
  updateUserSettings = data.updateUserSettings;
  subscribeBossEvents = events.subscribeBossEvents;
}

async function resetSettingsState() {
  const state = await readState();
  state.user.settings = {
    liveUpdates: true,
    showRiskBadges: true,
    confirmDangerousActions: true,
    preferredEntryPoint: "conversations",
  };
  await writeState(state);
}

test.beforeEach(async () => {
  await setup();
  await resetSettingsState();
});

test.after(async () => {
  if (runtimeRoot) {
    await rm(runtimeRoot, { recursive: true, force: true });
  }
});

test("updateUserSettings publishes settings refresh event", async () => {
  const events: Array<{ event: string }> = [];
  const unsubscribe = subscribeBossEvents((event) => {
    events.push({ event });
  });

  await updateUserSettings({ liveUpdates: false });
  unsubscribe();

  assert.equal(events.at(-1)?.event, "settings.updated");
});