// tests/commands/trekbrief.test.mjs
// v5.1 — Pattern D prose-pattern regression tests for /trekbrief Phase 3.5.
//
// Brief SC1 + SC2: end-of-brief effort dialog covering 4 downstream phases,
// with `phase_signals_partial` as the force-stop record.

import { test } from 'node:test';
import { strict as assert } from 'node:assert';
import { readFileSync } from 'node:fs';
import { dirname, join } from 'node:path';
import { fileURLToPath } from 'node:url';

const HERE = dirname(fileURLToPath(import.meta.url));
const ROOT = join(HERE, '..', '..');
const COMMAND_FILE = join(ROOT, 'commands', 'trekbrief.md');

function read() {
  return readFileSync(COMMAND_FILE, 'utf8');
}

test('trekbrief — Phase 3.5 heading is present', () => {
  const text = read();
  assert.match(text, /^## Phase 3\.5 — Per-phase effort dialog$/m,
    'Phase 3.5 heading missing from commands/trekbrief.md');
});

test('trekbrief — Phase 3.5 references all 4 downstream phases', () => {
  const text = read();
  const startIdx = text.indexOf('## Phase 3.5');
  assert.ok(startIdx >= 0, 'Phase 3.5 not found');
  const section = text.slice(startIdx, text.indexOf('## Phase 4', startIdx));
  for (const phase of ['research', 'plan', 'execute', 'review']) {
    assert.ok(section.includes(phase),
      `Phase 3.5 missing reference to "${phase}"`);
  }
});

test('trekbrief — Phase 3.5 documents phase_signals_partial force-stop', () => {
  const text = read();
  assert.ok(text.includes('phase_signals_partial'),
    'phase_signals_partial not mentioned in /trekbrief command prose');
});