// RBAC coverage for recorders: list is scoped to accessible projects, /:id
// asserts view, mutators assert edit, null-project recorders are admin-only.
// Same harness as assets-access.test.js — singleton pool on TEST_DATABASE_URL,
// req.user injected, router dynamic-imported. Skips without TEST_DATABASE_URL.
import { test } from 'node:test';
import assert from 'node:assert/strict';
import express from 'express';
import { isTestDbConfigured, setupTestDb } from '../helpers/setup-db.js';

const SKIP = !isTestDbConfigured() && 'TEST_DATABASE_URL not set';

async function appWithRecorders(user) {
  process.env.DATABASE_URL = process.env.TEST_DATABASE_URL;
  process.env.AUTH_ENABLED = 'true';
  const { default: recordersRouter } = await import('../../src/routes/recorders.js?v=' + Date.now());
  const app = express();
  app.use(express.json());
  app.use((req, _res, next) => { req.user = user; next(); });
  app.use('/api/v1/recorders', recordersRouter);
  return new Promise(r => {
    const srv = app.listen(0, '127.0.0.1', () =>
      r({ baseUrl: 'http://127.0.0.1:' + srv.address().port, close: () => new Promise(rs => srv.close(rs)) }));
  });
}

async function seed(pool) {
  const proj = async (n) => (await pool.query(`INSERT INTO projects (name, s3_prefix) VALUES ($1,$1) RETURNING id`, [n])).rows[0].id;
  const alpha = await proj('Alpha');
  const beta  = await proj('Beta');
  const rec = async (pid, name) => (await pool.query(
    `INSERT INTO recorders (name, source_type, project_id) VALUES ($1, 'srt', $2) RETURNING id`, [name, pid])).rows[0].id;
  const recA = await rec(alpha, 'Cam A');
  const recB = await rec(beta,  'Cam B');
  const recNull = (await pool.query(
    `INSERT INTO recorders (name, source_type, project_id) VALUES ('Unassigned','srt',NULL) RETURNING id`)).rows[0].id;
  const admin  = { id: (await pool.query(`INSERT INTO users (username, password_hash, role) VALUES ('adm','x','admin') RETURNING id`)).rows[0].id, role: 'admin' };
  const scoped = { id: (await pool.query(`INSERT INTO users (username, password_hash, role) VALUES ('ed','x','editor') RETURNING id`)).rows[0].id, role: 'editor' };
  await pool.query(`INSERT INTO project_access (project_id, subject_type, subject_id, level) VALUES ($1,'user',$2,'view')`, [alpha, scoped.id]);
  return { alpha, beta, recA, recB, recNull, admin, scoped };
}

test('recorders list is scoped; admin sees all incl. null-project, scoped sees only granted', { skip: SKIP }, async () => {
  const pool = await setupTestDb();
  process.env.DATABASE_URL = process.env.TEST_DATABASE_URL;
  try {
    const { recA, admin, scoped } = await seed(pool);

    let a = await appWithRecorders(admin);
    let list = await (await fetch(a.baseUrl + '/api/v1/recorders')).json();
    assert.equal(list.length, 3, 'admin sees all three recorders');
    await a.close();

    let s = await appWithRecorders(scoped);
    list = await (await fetch(s.baseUrl + '/api/v1/recorders')).json();
    assert.deepEqual(list.map(r => r.id), [recA], 'scoped editor sees only the granted-project recorder');
    await s.close();
  } finally { await pool.end(); }
});

test('recorder /:id enforces view; mutators enforce edit', { skip: SKIP }, async () => {
  const pool = await setupTestDb();
  process.env.DATABASE_URL = process.env.TEST_DATABASE_URL;
  try {
    const { recA, recB, recNull, scoped } = await seed(pool);
    const s = await appWithRecorders(scoped);

    // view-granted on Alpha: can GET recA, cannot GET recB (other project) or recNull (admin-only).
    assert.equal((await fetch(s.baseUrl + '/api/v1/recorders/' + recA)).status, 200);
    assert.equal((await fetch(s.baseUrl + '/api/v1/recorders/' + recB)).status, 403);
    assert.equal((await fetch(s.baseUrl + '/api/v1/recorders/' + recNull)).status, 403);

    // view-only grant cannot PATCH (edit) or start.
    const patch = await fetch(s.baseUrl + '/api/v1/recorders/' + recA, {
      method: 'PATCH', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify({ name: 'x' }) });
    assert.equal(patch.status, 403, 'view-level grant must not allow edit');
    await s.close();
  } finally { await pool.end(); }
});

test('creating a recorder requires edit; null-project create is admin-only', { skip: SKIP }, async () => {
  const pool = await setupTestDb();
  process.env.DATABASE_URL = process.env.TEST_DATABASE_URL;
  try {
    const { alpha, admin, scoped } = await seed(pool);

    // scoped editor has only 'view' on Alpha → create denied.
    let s = await appWithRecorders(scoped);
    let r = await fetch(s.baseUrl + '/api/v1/recorders', {
      method: 'POST', headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({ name: 'New', source_type: 'srt', project_id: alpha }) });
    assert.equal(r.status, 403);
    // null project → admin-only, still denied for the editor.
    r = await fetch(s.baseUrl + '/api/v1/recorders', {
      method: 'POST', headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({ name: 'New2', source_type: 'srt' }) });
    assert.equal(r.status, 403);
    await s.close();

    // admin can create in any project and with no project.
    let a = await appWithRecorders(admin);
    r = await fetch(a.baseUrl + '/api/v1/recorders', {
      method: 'POST', headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({ name: 'AdminRec', source_type: 'srt' }) });
    assert.equal(r.status, 201);
    await a.close();
  } finally { await pool.end(); }
});