'use strict';

// ─────────────────────────────────────────────────────────────────────────────
// #3805 — audit-uat must honour the audit_acknowledged marker that
// audit-open honours.
//
// isAuditItemAcknowledged is the ONE shared suppression predicate, but its
// "every scanner below" scope ended at audit.cts's file boundary:
// cmdAuditUat (src/uat.cts) hand-rolled discovery over the SAME UAT and
// VERIFICATION artifacts and never read the marker — so the documented,
// self-invalidating "this item is moot" seam worked for audit-open and was
// ignored by audit-uat, leaving no honest way to close a moot item.
// ─────────────────────────────────────────────────────────────────────────────

const { test, describe } = require('node:test');
const assert = require('node:assert/strict');
const fs = require('node:fs');
const path = require('node:path');

const { createTempProject, cleanup, runMsdTools } = require('./helpers.cjs');

const UAT_BODY = [
  '## Tests',
  '',
  '### 1. Deleted Feature Probe',
  'expected: The deleted admin route no longer exists',
  'result: pending',
  '',
].join('\n');

function seedUatPhase(tmpDir, phaseDir, frontmatterExtra) {
  const dir = path.join(tmpDir, '.planning', 'phases', phaseDir);
  fs.mkdirSync(dir, { recursive: true });
  const fm = [
    '---',
    'status: human_needed',
    ...(frontmatterExtra || []),
    '---',
    '',
  ].join('\n');
  fs.writeFileSync(path.join(dir, `${phaseDir}-UAT.md`), fm + UAT_BODY);
  return dir;
}

function seedVerificationPhase(tmpDir, phaseDir, frontmatterExtra) {
  const dir = path.join(tmpDir, '.planning', 'phases', phaseDir);
  fs.mkdirSync(dir, { recursive: true });
  const fm = [
    '---',
    'status: human_needed',
    ...(frontmatterExtra || []),
    '---',
    '',
  ].join('\n');
  fs.writeFileSync(path.join(dir, `${phaseDir}-VERIFICATION.md`), fm + [
    '# Verification',
    '',
    '## Human Verification',
    '',
    '1. **Test:** the deleted route stays deleted',
    '   - **Result:** pending',
    '',
  ].join('\n'));
  return dir;
}

function roadmapWith(phases) {
  const lines = ['# Roadmap', ''];
  for (const p of phases) lines.push(`### Phase ${p}: P${p}`, '- [ ] w', '');
  return lines.join('\n');
}

function runAudit(cwd) {
  const r = runMsdTools(['query', 'audit-uat'], cwd);
  assert.ok(r.success, r.error);
  return JSON.parse(r.output);
}

describe('#3805: audit-uat honours audit_acknowledged', () => {
  test('#3805: an acknowledged UAT file is suppressed and counted', (t) => {
    const tmpDir = createTempProject('msd-3805-uat-');
    t.after(() => cleanup(tmpDir));
    fs.writeFileSync(path.join(tmpDir, '.planning', 'ROADMAP.md'), roadmapWith(['02']));
    seedUatPhase(tmpDir, '02-probe', [
      'audit_acknowledged:',
      '  milestone: v1.0',
      '  at: 2026-08-24',
      '  gap_snapshot: human_needed::scenarios=1',
    ]);
    // Note: the gap_snapshot must match the CURRENT derived value for the
    // marker to suppress (self-invalidation on edit).
    const out = runAudit(tmpDir);
    assert.equal(out.summary.total_items, 0,
      `#3805: the acknowledged UAT item must be suppressed; got ${JSON.stringify(out.results)}`);
    assert.equal(out.acknowledged_files, 1,
      '#3805: the suppressed file must be visible in acknowledged_files (audit-open honesty model)');
  });

  test('#3805: a STALE gap_snapshot (content changed since ack) still surfaces', (t) => {
    const tmpDir = createTempProject('msd-3805-uatstale-');
    t.after(() => cleanup(tmpDir));
    fs.writeFileSync(path.join(tmpDir, '.planning', 'ROADMAP.md'), roadmapWith(['03']));
    // Marker snapshots scenarios=2 but the file now has 1 — self-invalidation.
    seedUatPhase(tmpDir, '03-probe', [
      'audit_acknowledged:',
      '  milestone: v1.0',
      '  at: 2026-08-24',
      '  gap_snapshot: human_needed::scenarios=2',
    ]);
    const out = runAudit(tmpDir);
    assert.ok(out.summary.total_items > 0,
      'a marker whose snapshot no longer matches must NOT suppress (self-invalidation)');
    assert.equal(out.acknowledged_files, 0, 'a stale marker does not count as acknowledged');
  });

  test('#3805: an acknowledged VERIFICATION file is suppressed (status snapshot)', (t) => {
    const tmpDir = createTempProject('msd-3805-ver-');
    t.after(() => cleanup(tmpDir));
    fs.writeFileSync(path.join(tmpDir, '.planning', 'ROADMAP.md'), roadmapWith(['04']));
    seedVerificationPhase(tmpDir, '04-probe', [
      'audit_acknowledged:',
      '  milestone: v1.0',
      '  at: 2026-08-24',
      '  status: human_needed',
    ]);
    const out = runAudit(tmpDir);
    assert.equal(out.summary.total_items, 0,
      `#3805: the acknowledged VERIFICATION item must be suppressed; got ${JSON.stringify(out.results)}`);
    assert.equal(out.acknowledged_files, 1,
      '#3805: the suppressed VERIFICATION file must be visible in acknowledged_files');
  });

  test('#3805 control: an unacknowledged open UAT file still surfaces', (t) => {
    const tmpDir = createTempProject('msd-3805-ctl-');
    t.after(() => cleanup(tmpDir));
    fs.writeFileSync(path.join(tmpDir, '.planning', 'ROADMAP.md'), roadmapWith(['05']));
    seedUatPhase(tmpDir, '05-probe');
    const out = runAudit(tmpDir);
    assert.ok(out.summary.total_items > 0, 'no marker → item surfaces (pre-existing behavior)');
  });
});