import assert from 'node:assert/strict';
import test from 'node:test';
import { createPortalSessionCoordinator } from './portal-session-coordinator.mjs';

test('session coordinator prefers the initialized access service', async () => {
  const calls = [];
  const access = {
    async validateOwnership(userId, sessionId) {
      calls.push({ kind: 'owns', userId, sessionId });
      return true;
    },
    async unregisterSession(input) {
      calls.push({ kind: 'unregister', input });
    },
  };
  const coordinator = createPortalSessionCoordinator({
    getSessionAccess: () => access,
    getUserAuth: () => {
      throw new Error('fallback user auth should not be read');
    },
    createSessionAccessFn: () => {
      throw new Error('fallback access should not be created');
    },
  });

  assert.equal(
    await coordinator.ownsAgentSession('user-1', 'session-1'),
    true,
  );
  await coordinator.unregisterAgentSessionForUser(
    'user-1',
    'session-1',
  );
  assert.deepEqual(calls, [
    {
      kind: 'owns',
      userId: 'user-1',
      sessionId: 'session-1',
    },
    {
      kind: 'unregister',
      input: {
        userId: 'user-1',
        sessionId: 'session-1',
      },
    },
  ]);
});

test('session coordinator creates a fallback access facade on demand', async () => {
  const calls = [];
  const userAuth = { id: 'auth-1' };
  const coordinator = createPortalSessionCoordinator({
    getUserAuth: () => userAuth,
    isSessionBrokerEnabledFn: () => true,
    createSessionAccessFn(input) {
      calls.push(input);
      return {
        async validateOwnership() {
          return false;
        },
        async unregisterSession() {},
      };
    },
  });

  assert.equal(
    await coordinator.ownsAgentSession('user-1', 'session-1'),
    false,
  );
  assert.deepEqual(calls, [
    {
      userAuth,
      enabled: true,
    },
  ]);
});

test('session coordinator fails closed for missing identifiers or auth', async () => {
  let fallbackCreates = 0;
  const coordinator = createPortalSessionCoordinator({
    createSessionAccessFn() {
      fallbackCreates += 1;
      return {};
    },
  });

  assert.equal(
    await coordinator.ownsAgentSession('', 'session-1'),
    false,
  );
  assert.equal(
    await coordinator.ownsAgentSession('user-1', ''),
    false,
  );
  assert.equal(
    await coordinator.ownsAgentSession('user-1', 'session-1'),
    false,
  );
  await coordinator.unregisterAgentSessionForUser(
    '',
    'session-1',
  );
  await coordinator.unregisterAgentSessionForUser(
    'user-1',
    'session-1',
  );
  assert.equal(fallbackCreates, 0);
});

test('page delivery locks preserve nesting and tolerate extra releases', () => {
  const coordinator = createPortalSessionCoordinator();
  assert.equal(
    coordinator.isSessionPageDeliveryActive('session-1'),
    false,
  );
  coordinator.beginSessionPageDelivery('session-1');
  coordinator.beginSessionPageDelivery('session-1');
  coordinator.beginSessionPageDelivery('session-2');
  assert.equal(
    coordinator.isSessionPageDeliveryActive('session-1'),
    true,
  );
  assert.equal(
    coordinator.isSessionPageDeliveryActive('session-2'),
    true,
  );

  coordinator.endSessionPageDelivery('session-1');
  assert.equal(
    coordinator.isSessionPageDeliveryActive('session-1'),
    true,
  );
  coordinator.endSessionPageDelivery('session-1');
  assert.equal(
    coordinator.isSessionPageDeliveryActive('session-1'),
    false,
  );
  coordinator.endSessionPageDelivery('session-1');
  coordinator.beginSessionPageDelivery('');
  coordinator.endSessionPageDelivery('');
  assert.equal(
    coordinator.isSessionPageDeliveryActive('session-1'),
    false,
  );
});