#!/usr/bin/env node
// Acceptation P4 (sans navigateur, sans quota Claude) : Web Push + commande WS `answer`.
// Vrai daemon. Couvre : garde auth + Origin sur les routes push, clé VAPID exposée, subscribe
// idempotent / malformé / unsubscribe, et la commande `answer` (rejets INVALID_ANSWER /
// NOT_CONTROLLING — la validation fine `select` vit dans les tests vitest sur fixtures).
import { spawn } from 'node:child_process';
import { mkdtempSync, rmSync } from 'node:fs';
import { tmpdir } from 'node:os';
import { join, dirname } from 'node:path';
import { fileURLToPath } from 'node:url';
import { createRequire } from 'node:module';

const require = createRequire(import.meta.url);
const WebSocket = require('ws');

const PORT = 7544;
const ORIGIN = `http://127.0.0.1:${PORT}`;
const sleep = (ms) => new Promise((r) => setTimeout(r, ms));
const serverDir = join(dirname(fileURLToPath(import.meta.url)), '..');
const results = [];
const check = (name, ok, detail = '') => {
  results.push({ name, ok, detail });
  console.log(`${ok ? '✅' : '❌'} ${name}${detail ? ` — ${detail}` : ''}`);
};

const tmp = mkdtempSync(join(tmpdir(), 'arb-accept-p4-'));

const srv = spawn(
  'node',
  [join(serverDir, 'dist', 'index.js'), '--port', String(PORT), '--db', join(tmp, 'a.db'), '--claude-home', join(tmp, 'claude'), '--no-discover'],
  { env: { ...process.env, ARBORETUM_LOG: 'warn' }, stdio: ['ignore', 'pipe', 'pipe'] },
);
let srvOut = '';
srv.stdout.on('data', (d) => (srvOut += d));
srv.stderr.on('data', (d) => (srvOut += d));

const j = (path, method, cookie, body) =>
  fetch(`${ORIGIN}${path}`, {
    method,
    headers: { Origin: ORIGIN, ...(cookie ? { Cookie: cookie } : {}), ...(body ? { 'Content-Type': 'application/json' } : {}) },
    ...(body ? { body: JSON.stringify(body) } : {}),
  });

function wsClient(cookie) {
  const ws = new WebSocket(`ws://127.0.0.1:${PORT}/ws`, { headers: { Origin: ORIGIN, Cookie: cookie } });
  const state = { msgs: [] };
  ws.on('message', (data, isBinary) => {
    if (!isBinary) state.msgs.push(JSON.parse(String(data)));
  });
  const waitMsg = async (pred, timeout = 8000) => {
    const t0 = Date.now();
    while (Date.now() - t0 < timeout) {
      const m = state.msgs.find(pred);
      if (m) return m;
      await sleep(50);
    }
    return null;
  };
  return { ws, state, waitMsg, send: (m) => ws.send(JSON.stringify(m)) };
}

try {
  await sleep(1500);
  const token = /arb_[0-9a-f]+/.exec(srvOut)?.[0];
  check('boot + token bootstrap', !!token);

  // Garde d'auth globale : route push sans cookie → 401.
  const noAuth = await j('/api/v1/push/vapid-public-key', 'GET', '');
  check('GET vapid-public-key sans cookie → 401', noAuth.status === 401);

  const login = await fetch(`${ORIGIN}/api/v1/auth/login`, {
    method: 'POST',
    headers: { 'Content-Type': 'application/json', Origin: ORIGIN },
    body: JSON.stringify({ token }),
  });
  const cookie = login.headers.get('set-cookie')?.split(';')[0] ?? '';
  check('login → cookie', login.status === 200);

  // Check Origin strict : origine non autorisée (même avec cookie) → 403.
  const badOrigin = await fetch(`${ORIGIN}/api/v1/push/vapid-public-key`, { headers: { Origin: 'http://evil.example', Cookie: cookie } });
  check('Origin invalide → 403', badOrigin.status === 403);

  // Clé VAPID publique exposée (sûre).
  const vapid = await j('/api/v1/push/vapid-public-key', 'GET', cookie);
  const vapidBody = await vapid.json();
  check('GET vapid-public-key → 200 + clé non triviale', vapid.status === 200 && typeof vapidBody.key === 'string' && vapidBody.key.length > 20);

  // Abonnement : 201, UPSERT idempotent, rejet du malformé, désabonnement.
  const sub = { endpoint: 'https://push.example/endpoint-1', keys: { p256dh: 'BPp256dhKeyDummy', auth: 'authDummy' } };
  const s1 = await j('/api/v1/push/subscribe', 'POST', cookie, sub);
  check('POST subscribe → 201', s1.status === 201);
  const s2 = await j('/api/v1/push/subscribe', 'POST', cookie, sub);
  check('subscribe idempotent (même endpoint) → 201', s2.status === 201);
  const badSub = await j('/api/v1/push/subscribe', 'POST', cookie, { endpoint: 'x' });
  check('subscribe sans keys → 400', badSub.status === 400);
  const uns = await j('/api/v1/push/unsubscribe', 'POST', cookie, { endpoint: sub.endpoint });
  check('POST unsubscribe → 200', uns.status === 200);

  // Commande WS `answer` : rejets sur une session bash managée (pas d'état waiting) et en observer.
  const created = await j('/api/v1/sessions', 'POST', cookie, { cwd: tmp, command: 'bash' });
  const sess = (await created.json()).session;
  check('POST /sessions bash → 201', created.status === 201 && sess?.command === 'bash');

  const c = wsClient(cookie);
  await new Promise((res, rej) => (c.ws.on('open', res), c.ws.on('error', rej)));
  c.send({ type: 'hello', protocol: 1 });
  await c.waitMsg((m) => m.type === 'hello_ok');

  c.send({ type: 'attach', sessionId: sess.id, mode: 'interactive', cols: 80, rows: 24 });
  const att = await c.waitMsg((m) => m.type === 'attached');
  check('attach interactive (contrôleur)', !!att && att.controlling === true);

  c.send({ type: 'answer', channel: att.channel, action: 'deny' });
  const invalid = await c.waitMsg((m) => m.type === 'error' && m.code === 'INVALID_ANSWER');
  check('answer sur session non-waiting → INVALID_ANSWER', !!invalid);

  c.send({ type: 'attach', sessionId: sess.id, mode: 'observer', cols: 80, rows: 24 });
  const obs = await c.waitMsg((m) => m.type === 'attached' && m.mode === 'observer');
  check('attach observer (read-only)', !!obs && obs.controlling === false);
  c.send({ type: 'answer', channel: obs.channel, action: 'deny' });
  const notCtrl = await c.waitMsg((m) => m.type === 'error' && m.code === 'NOT_CONTROLLING' && m.channel === obs.channel);
  check('answer en observer → NOT_CONTROLLING', !!notCtrl);

  c.ws.close();
} catch (err) {
  check('exception', false, String(err));
} finally {
  srv.kill('SIGTERM');
  await sleep(1500);
  check('arrêt propre du daemon (SIGTERM)', srv.exitCode === 0 || srv.signalCode === null || srv.exitCode === null);
  rmSync(tmp, { recursive: true, force: true });
  const failed = results.filter((r) => !r.ok);
  console.log(failed.length === 0 ? '\nACCEPTANCE P4: ALL GREEN' : `\nACCEPTANCE P4: ${failed.length} FAILURE(S)`);
  process.exit(failed.length === 0 ? 0 : 1);
}