import test from 'node:test';
import assert from 'node:assert/strict';
import { mkdtempSync, rmSync } from 'node:fs';
import { tmpdir } from 'node:os';
import { join } from 'node:path';
import { Broker } from '../src/broker.mjs';
import { Store } from '../src/store.mjs';
function fixture(t, cross = false) {
  const root = mkdtempSync(join(tmpdir(), 'bus-citation-')),
    store = new Store(root);
  const role = (withinRole = [], crossRole = []) => ({ authority: { withinRole, crossRole } });
  const business = (id) => ({
    id,
    human: 'jason',
    arbiters: { technical: 'cto', delivery: 'pm' },
    roles: {
      pm: role(cross ? [] : ['message.send'], cross ? ['message.send'] : []),
      cto: role(),
      coder: role(),
    },
  });
  const b = new Broker({ store, businesses: { demo: business('demo'), other: business('other') } });
  t.after(() => {
    store.close();
    rmSync(root, { recursive: true, force: true });
  });
  const call = (cap, verb, args = {}) => b.request(cap, { verb, args });
  const agent = (role, business = 'demo') => {
    const cap = b.bindLaunch({ business, role, run: business + role, harness: 'pi', address: role });
    call(cap, 'role.claim');
    return cap;
  };
  const pm = agent('pm'),
    human = b.bindHuman({ business: 'demo', human: 'jason', via: 'cli', outsideAgent: true });
  const raise = (cap = pm, action = 'role.launch', target = 'coder') =>
    call(cap, 'decision.raise', {
      action,
      target,
      domain: 'technical',
      question: 'Launch?',
      options: [
        { key: 'yes', text: 'Yes' },
        { key: 'no', text: 'No' },
      ],
      recommendation: 'yes',
      blocking: true,
      task_ref: 'vikunja:3/44',
    });
  const send = (id, body = 'Blocking: launch?') =>
    call(pm, 'message.send', { to: 'human', class: 'DECISION', decision: id, body });
  return { b, store, call, agent, pm, human, raise, send };
}
test('within-role sends cite an open gated launch decision without spending it or naming it in grants', (t) => {
  const f = fixture(t),
    d = f.raise();
  assert.equal(d.class, 'gated');
  const first = f.send(d.id),
    second = f.send(d.id);
  for (const id of [first.id, second.id])
    assert.equal(f.store.get('SELECT decision FROM messages WHERE id=?', id).decision, d.id);
  const events = f.store.all(
    "SELECT subject,body FROM events WHERE kind='action.allowed' AND json_extract(body,'$.action')='message.send'",
  );
  assert.equal(events.length, 2);
  for (const e of events) {
    assert.equal(e.subject, 'human');
    assert.equal(Object.hasOwn(JSON.parse(e.body), 'decision'), false);
  }
  f.call(f.human, 'decision.resolve', { id: d.id, choice: 'yes' });
  assert.equal(f.b.authorize(f.pm, 'role.launch', { decision: d.id, target: 'coder' }).decision, d.id);
  assert.throws(
    () => f.b.authorize(f.pm, 'role.launch', { decision: d.id, target: 'coder' }),
    /decision-consumed/,
  );
  // A citation is still valid after consumption: it grants no authority.
  f.send(d.id, 'The launch was authorized.');
});
test('missing and foreign-business citations refuse and roll back message and grant', (t) => {
  const f = fixture(t),
    foreign = f.raise(f.agent('pm', 'other'));
  for (const id of ['missing-decision', foreign.id]) assert.throws(() => f.send(id), /decision-not-found/);
  assert.equal(f.store.get('SELECT count(*) AS n FROM messages').n, 0);
  assert.equal(
    f.store.get(
      "SELECT count(*) AS n FROM events WHERE kind='action.allowed' AND json_extract(body,'$.action')='message.send'",
    ).n,
    0,
  );
});
test('cross-role sends still need a matching resolved decision and consume it once', (t) => {
  const f = fixture(t, true),
    unrelated = f.raise();
  assert.throws(() => f.send(undefined), /decision-required/);
  assert.throws(() => f.send(unrelated.id), /decision-mismatch/);
  const d = f.raise(f.pm, 'message.send', 'human');
  assert.throws(() => f.send(d.id), /decision-not-approved/);
  f.call(f.agent('cto'), 'decision.resolve', { id: d.id, choice: 'yes' });
  f.send(d.id);
  assert.throws(() => f.send(d.id), /decision-consumed/);
  const e = f.store.get(
    "SELECT body FROM events WHERE kind='action.allowed' AND json_extract(body,'$.action')='message.send' AND json_extract(body,'$.operation') IS NOT 'decision.raise'",
  );
  assert.equal(JSON.parse(e.body).decision, d.id);
  assert.throws(
    () => f.b.authorize(f.pm, 'message.send', { decision: d.id, target: 'human' }),
    /decision-consumed/,
  );
});