/**
 * Issue #2493: Add unified post-planning gap checker for requirements and context
 *
 * Verifies:
 *   1. Step 13e (Post-Planning Gap Analysis) is inserted into plan-phase.md after
 *      Step 13d and before Step 14, gated on workflow.post_planning_gaps.
 *   2. Headless plan-phase variant has an equivalent post_planning_gaps step.
 *   3. The decision parser extracts D-NN entries from CONTEXT.md <decisions> blocks.
 *   4. The gap detector identifies covered vs not-covered items, avoiding
 *      false-positive ID collisions (REQ-1 vs REQ-10).
 *   5. The gap-analysis CLI:
 *        - Returns enabled:false when workflow.post_planning_gaps is false.
 *        - Returns rows + table when enabled, sorting deterministically.
 *        - Skips gracefully when REQUIREMENTS.md or CONTEXT.md is missing/malformed.
 *   6. config-set workflow.post_planning_gaps:
 *        - Accepts true/false.
 *        - Rejects non-boolean values.
 *   7. config-ensure-section materializes workflow.post_planning_gaps default true.
 *   8. config-schema lists workflow.post_planning_gaps in VALID_CONFIG_KEYS and
 *      core CONFIG_DEFAULTS includes it.
 *   9. The existing Requirements Coverage Gate (Step 13) is still present
 *      (no regression — §13e adds, does not replace).
 */

const { describe, test, beforeEach, afterEach } = require('node:test');
const assert = require('node:assert/strict');
const fs = require('fs');
const path = require('path');
const { runGsdTools, createTempProject, cleanup } = require('./helpers.cjs');

const REPO_ROOT = path.join(__dirname, '..');
const PLAN_PHASE_PATH = path.join(REPO_ROOT, 'gsd-core', 'workflows', 'plan-phase.md');
const { parseDecisions } = require('../gsd-core/bin/lib/decisions.cjs');

// ─── Workflow file structure ──────────────────────────────────────────────────

describe('plan-phase.md Step 13e insertion (#2493)', () => {
  test('plan-phase.md exists', () => {
    assert.ok(fs.existsSync(PLAN_PHASE_PATH));
  });

  test('Step 13e (Post-Planning Gap Analysis) heading is present', () => {
    const content = fs.readFileSync(PLAN_PHASE_PATH, 'utf-8');
    assert.match(content, /## 13e\.\s*Post-Planning Gap Analysis/);
  });

  test('Step 13e appears between Step 13d and Step 14', () => {
    const content = fs.readFileSync(PLAN_PHASE_PATH, 'utf-8');
    const i13d = content.indexOf('## 13d.');
    const i13e = content.indexOf('## 13e.');
    const i14 = content.indexOf('## 14.');
    assert.ok(i13d !== -1, '## 13d. must exist');
    assert.ok(i13e !== -1, '## 13e. must exist');
    assert.ok(i14 !== -1, '## 14. must exist');
    assert.ok(i13d < i13e && i13e < i14,
      `Step 13e must be between 13d and 14 (got 13d=${i13d}, 13e=${i13e}, 14=${i14})`);
  });

  test('Step 13e references workflow.post_planning_gaps gate', () => {
    const content = fs.readFileSync(PLAN_PHASE_PATH, 'utf-8');
    const i13e = content.indexOf('## 13e.');
    const i14 = content.indexOf('## 14.');
    const stepBody = content.slice(i13e, i14);
    assert.match(stepBody, /workflow\.post_planning_gaps/);
  });

  test('Step 13e invokes gap-analysis via gsd-tools', () => {
    const content = fs.readFileSync(PLAN_PHASE_PATH, 'utf-8');
    const i13e = content.indexOf('## 13e.');
    const i14 = content.indexOf('## 14.');
    const stepBody = content.slice(i13e, i14);
    assert.match(stepBody, /gap-analysis/);
  });

  test('Existing Requirements Coverage Gate (§13) is still present (no regression)', () => {
    const content = fs.readFileSync(PLAN_PHASE_PATH, 'utf-8');
    assert.match(content, /## 13\.\s*Requirements Coverage Gate/);
  });

  // sdk/prompts/workflows/plan-phase.md removed in 377a6d2 — SDK loads installed workflow directly.
});

// ─── Decisions parser ────────────────────────────────────────────────────────

describe('decisions.cjs parser (shared with #2492)', () => {
  test('extracts D-NN entries from a <decisions> block', () => {
    const md = `
<decisions>
## Implementation Decisions

### Auth
- **D-01:** Use OAuth 2.0 with PKCE
- **D-02:** Session storage in Redis

### Storage
- **D-03:** Postgres 15 with pgvector
</decisions>
`;
    const ds = parseDecisions(md);
    assert.deepStrictEqual(ds.map(d => d.id), ['D-01', 'D-02', 'D-03']);
    assert.strictEqual(ds[0].text, 'Use OAuth 2.0 with PKCE');
  });

  test('returns [] when no <decisions> block is present', () => {
    assert.deepStrictEqual(parseDecisions('# Just a header\nno decisions here'), []);
  });

  test('returns [] for empty / null / undefined input', () => {
    assert.deepStrictEqual(parseDecisions(''), []);
    assert.deepStrictEqual(parseDecisions(null), []);
    assert.deepStrictEqual(parseDecisions(undefined), []);
  });

  test('ignores D-IDs outside the <decisions> block', () => {
    const md = `
Top of file. - **D-99:** Not a real decision (outside block).
<decisions>
- **D-01:** Real decision
</decisions>
After the block. - **D-77:** Also not real.
`;
    const ds = parseDecisions(md);
    assert.deepStrictEqual(ds.map(d => d.id), ['D-01']);
  });
});

// ─── Gap analysis CLI ────────────────────────────────────────────────────────

describe('gap-analysis CLI (#2493)', () => {
  let tmpDir;
  let phaseDir;

  function writeRequirements(ids) {
    const lines = ids.map((id, i) => `- [ ] **${id}** Requirement ${i + 1} description`);
    fs.writeFileSync(path.join(tmpDir, '.planning', 'REQUIREMENTS.md'),
      `# Requirements\n\n${lines.join('\n')}\n`);
  }

  function writeContext(decisions) {
    const dLines = decisions.map(d => `- **${d.id}:** ${d.text}`).join('\n');
    fs.writeFileSync(path.join(phaseDir, 'CONTEXT.md'),
      `# Phase Context\n\n<decisions>\n## Implementation Decisions\n\n${dLines}\n</decisions>\n`);
  }

  function writePlan(name, body) {
    fs.writeFileSync(path.join(phaseDir, `${name}-PLAN.md`), body);
  }

  function ensureConfig() {
    const r = runGsdTools('config-ensure-section', tmpDir);
    assert.ok(r.success, `config-ensure-section failed: ${r.error}`);
  }

  beforeEach(() => {
    tmpDir = createTempProject();
    phaseDir = path.join(tmpDir, '.planning', 'phases', '01-test');
    fs.mkdirSync(phaseDir, { recursive: true });
    ensureConfig();
  });

  afterEach(() => {
    cleanup(tmpDir);
  });

  test('marks REQ-01 as covered when a plan body mentions REQ-01', () => {
    writeRequirements(['REQ-01']);
    writePlan('01', '# Plan 1\n\nImplements REQ-01.\n');
    const r = runGsdTools(['gap-analysis', '--phase-dir', phaseDir], tmpDir);
    assert.ok(r.success, `gap-analysis failed: ${r.error}`);
    const out = JSON.parse(r.output);
    const row = out.rows.find(x => x.item === 'REQ-01');
    assert.ok(row, 'REQ-01 row missing');
    assert.strictEqual(row.status, 'Covered');
  });

  test('marks REQ-99 as not covered when no plan mentions it', () => {
    writeRequirements(['REQ-99']);
    writePlan('01', '# Plan 1\n\nImplements something unrelated.\n');
    const r = runGsdTools(['gap-analysis', '--phase-dir', phaseDir], tmpDir);
    assert.ok(r.success);
    const out = JSON.parse(r.output);
    const row = out.rows.find(x => x.item === 'REQ-99');
    assert.strictEqual(row.status, 'Not covered');
  });

  test('marks D-01 covered when plan mentions D-01', () => {
    writeContext([{ id: 'D-01', text: 'Use OAuth 2.0' }]);
    writePlan('01', '# Plan\n\nImplements D-01 (OAuth).\n');
    const r = runGsdTools(['gap-analysis', '--phase-dir', phaseDir], tmpDir);
    assert.ok(r.success);
    const out = JSON.parse(r.output);
    const row = out.rows.find(x => x.item === 'D-01');
    assert.ok(row);
    assert.strictEqual(row.source, 'CONTEXT.md');
    assert.strictEqual(row.status, 'Covered');
  });

  test('marks D-99 not covered when no plan mentions it', () => {
    writeContext([{ id: 'D-99', text: 'Bit offsets in +OFFSET:BIT format' }]);
    writePlan('01', '# Plan\n\nUnrelated work.\n');
    const r = runGsdTools(['gap-analysis', '--phase-dir', phaseDir], tmpDir);
    assert.ok(r.success);
    const out = JSON.parse(r.output);
    const row = out.rows.find(x => x.item === 'D-99');
    assert.strictEqual(row.status, 'Not covered');
  });

  test('REQ-1 in plan does not falsely mark REQ-10 as covered (word-boundary)', () => {
    writeRequirements(['REQ-1', 'REQ-10']);
    writePlan('01', '# Plan\n\nMentions REQ-1 only.\n');
    const r = runGsdTools(['gap-analysis', '--phase-dir', phaseDir], tmpDir);
    assert.ok(r.success);
    const out = JSON.parse(r.output);
    const row1 = out.rows.find(x => x.item === 'REQ-1');
    const row10 = out.rows.find(x => x.item === 'REQ-10');
    assert.strictEqual(row1.status, 'Covered');
    assert.strictEqual(row10.status, 'Not covered',
      'REQ-10 must not be marked covered by a substring match against REQ-1');
  });

  test('table output contains documented columns', () => {
    writeRequirements(['REQ-01']);
    writePlan('01', '# Plan\n');
    const r = runGsdTools(['gap-analysis', '--phase-dir', phaseDir], tmpDir);
    assert.ok(r.success);
    const out = JSON.parse(r.output);
    assert.match(out.table, /\| Source \| Item \| Status \|/);
    assert.match(out.table, /\|--------\|------\|--------\|/);
    assert.match(out.table, /## Post-Planning Gap Analysis/);
  });

  test('rows sort REQ-02 before REQ-10 (natural sort, deterministic)', () => {
    writeRequirements(['REQ-10', 'REQ-02', 'REQ-01']);
    writePlan('01', '# Plan\n');
    const r = runGsdTools(['gap-analysis', '--phase-dir', phaseDir], tmpDir);
    assert.ok(r.success);
    const out = JSON.parse(r.output);
    const reqRows = out.rows.filter(x => x.source === 'REQUIREMENTS.md').map(x => x.item);
    assert.deepStrictEqual(reqRows, ['REQ-01', 'REQ-02', 'REQ-10']);
  });

  test('parses non-REQ prefixes and ignores traceability header tokens', () => {
    const requirementsMd = [
      '# Requirements',
      '',
      '| REQ-ID | Phase | Plan(s) |',
      '|--------|-------|---------|',
      '| TST-01 | Phase 01 | TBD |',
      '| BACK-07 | Phase 01 | TBD |',
      '',
      '- [ ] **INSP-04** Inspector requirement.',
    ].join('\n');
    fs.writeFileSync(path.join(tmpDir, '.planning', 'REQUIREMENTS.md'), `${requirementsMd}\n`);

    writePlan('01', '# Plan\n\nCovers TST-01, BACK-07, and INSP-04.\n');

    const r = runGsdTools(['gap-analysis', '--phase-dir', phaseDir], tmpDir);
    assert.ok(r.success, r.error);
    const out = JSON.parse(r.output);

    const reqRows = out.rows.filter(x => x.source === 'REQUIREMENTS.md');
    const ids = reqRows.map(x => x.item);

    assert.deepStrictEqual(ids, ['BACK-07', 'INSP-04', 'TST-01']);
    assert.ok(!ids.includes('REQ-ID'), 'traceability header token must not be parsed as a requirement ID');
    assert.ok(reqRows.every(x => x.status === 'Covered'));
  });

  test('does not parse requirement-like IDs from non-first table columns', () => {
    const requirementsMd = [
      '# Requirements',
      '',
      '| REQ-ID | Phase | Plan(s) |',
      '|--------|-------|---------|',
      '| TST-01 | Phase 01 | PLAN-01 |',
      '| BACK-07 | Phase 01 | PLAN-02 |',
    ].join('\n');
    fs.writeFileSync(path.join(tmpDir, '.planning', 'REQUIREMENTS.md'), `${requirementsMd}\n`);

    writePlan('01', '# Plan\n\nCovers TST-01 and BACK-07 only.\n');

    const r = runGsdTools(['gap-analysis', '--phase-dir', phaseDir], tmpDir);
    assert.ok(r.success, r.error);
    const out = JSON.parse(r.output);

    const ids = out.rows
      .filter(x => x.source === 'REQUIREMENTS.md')
      .map(x => x.item);

    assert.deepStrictEqual(ids, ['BACK-07', 'TST-01']);
    assert.ok(!ids.includes('PLAN-01'));
    assert.ok(!ids.includes('PLAN-02'));
  });

  test('REQUIREMENTS.md missing → CONTEXT-only run still works', () => {
    writeContext([{ id: 'D-01', text: 'foo' }]);
    writePlan('01', '# Plan mentioning D-01\n');
    const r = runGsdTools(['gap-analysis', '--phase-dir', phaseDir], tmpDir);
    assert.ok(r.success, r.error);
    const out = JSON.parse(r.output);
    assert.strictEqual(out.rows.length, 1);
    assert.strictEqual(out.rows[0].source, 'CONTEXT.md');
  });

  test('CONTEXT.md missing → REQ-only run still works', () => {
    writeRequirements(['REQ-01']);
    writePlan('01', '# Plan REQ-01\n');
    const r = runGsdTools(['gap-analysis', '--phase-dir', phaseDir], tmpDir);
    assert.ok(r.success, r.error);
    const out = JSON.parse(r.output);
    assert.strictEqual(out.rows.length, 1);
    assert.strictEqual(out.rows[0].source, 'REQUIREMENTS.md');
  });

  test('both REQUIREMENTS.md and CONTEXT.md missing → no error, empty rows', () => {
    writePlan('01', '# Plan\n');
    const r = runGsdTools(['gap-analysis', '--phase-dir', phaseDir], tmpDir);
    assert.ok(r.success, r.error);
    const out = JSON.parse(r.output);
    assert.deepStrictEqual(out.rows, []);
    assert.match(out.summary, /no requirements or decisions/i);
  });

  test('malformed CONTEXT.md (no <decisions> block) treated as zero decisions', () => {
    fs.writeFileSync(path.join(phaseDir, 'CONTEXT.md'), '# Just plain prose, no decisions block.\n');
    writeRequirements(['REQ-01']);
    writePlan('01', '# Plan REQ-01\n');
    const r = runGsdTools(['gap-analysis', '--phase-dir', phaseDir], tmpDir);
    assert.ok(r.success, r.error);
    const out = JSON.parse(r.output);
    assert.strictEqual(out.rows.length, 1);
    assert.strictEqual(out.rows[0].source, 'REQUIREMENTS.md');
  });

  test('gate flag false → enabled:false, no scanning', () => {
    runGsdTools(['config-set', 'workflow.post_planning_gaps', 'false'], tmpDir);
    writeRequirements(['REQ-01']);
    const r = runGsdTools(['gap-analysis', '--phase-dir', phaseDir], tmpDir);
    assert.ok(r.success);
    const out = JSON.parse(r.output);
    assert.strictEqual(out.enabled, false);
    assert.deepStrictEqual(out.rows, []);
  });

  test('gate flag true (default) → enabled:true, rows present', () => {
    writeRequirements(['REQ-01']);
    writePlan('01', '# Plan REQ-01\n');
    const r = runGsdTools(['gap-analysis', '--phase-dir', phaseDir], tmpDir);
    assert.ok(r.success);
    const out = JSON.parse(r.output);
    assert.strictEqual(out.enabled, true);
    assert.ok(out.rows.length >= 1);
  });
});

// ─── Config integration ──────────────────────────────────────────────────────

describe('workflow.post_planning_gaps config (#2493)', () => {
  let tmpDir;

  beforeEach(() => { tmpDir = createTempProject(); });
  afterEach(() => { cleanup(tmpDir); });

  test('workflow.post_planning_gaps is owned by the gap-analysis capability (ADR-857 federation)', () => {
    // After ADR-857 phase-6 migration, workflow.post_planning_gaps is federally owned by
    // the gap-analysis capability — it must NOT be in the central VALID_CONFIG_KEYS schema
    // and MUST appear in the capability registry configKeys map.
    const { VALID_CONFIG_KEYS } = require('../gsd-core/bin/lib/config-schema.cjs');
    const registry = require('../gsd-core/bin/lib/capability-registry.cjs');
    assert.equal(
      VALID_CONFIG_KEYS.has('workflow.post_planning_gaps'),
      false,
      'workflow.post_planning_gaps must NOT be in central VALID_CONFIG_KEYS after ADR-857 federation',
    );
    assert.equal(
      registry.configKeys['workflow.post_planning_gaps'],
      'gap-analysis',
      'workflow.post_planning_gaps must be owned by gap-analysis capability in the registry',
    );
  });

  test('CONFIG_DEFAULTS contains post_planning_gaps default true', () => {
    // CONFIG_DEFAULTS is exported from core.cjs
    const { CONFIG_DEFAULTS } = require('../gsd-core/bin/lib/config-loader.cjs');
    assert.strictEqual(CONFIG_DEFAULTS.post_planning_gaps, true);
  });

  test('config-ensure-section materializes workflow.post_planning_gaps:true', () => {
    runGsdTools('config-ensure-section', tmpDir);
    const config = JSON.parse(fs.readFileSync(path.join(tmpDir, '.planning', 'config.json'), 'utf-8'));
    assert.strictEqual(config.workflow.post_planning_gaps, true);
  });

  test('config-set workflow.post_planning_gaps true → persisted as boolean', () => {
    runGsdTools('config-ensure-section', tmpDir);
    const r = runGsdTools(['config-set', 'workflow.post_planning_gaps', 'true'], tmpDir);
    assert.ok(r.success, r.error);
    const config = JSON.parse(fs.readFileSync(path.join(tmpDir, '.planning', 'config.json'), 'utf-8'));
    assert.strictEqual(config.workflow.post_planning_gaps, true);
  });

  test('config-set workflow.post_planning_gaps false → persisted as boolean', () => {
    runGsdTools('config-ensure-section', tmpDir);
    const r = runGsdTools(['config-set', 'workflow.post_planning_gaps', 'false'], tmpDir);
    assert.ok(r.success, r.error);
    const config = JSON.parse(fs.readFileSync(path.join(tmpDir, '.planning', 'config.json'), 'utf-8'));
    assert.strictEqual(config.workflow.post_planning_gaps, false);
  });

  test('config-set workflow.post_planning_gaps yes → rejected', () => {
    runGsdTools('config-ensure-section', tmpDir);
    const r = runGsdTools(['config-set', 'workflow.post_planning_gaps', 'yes'], tmpDir);
    assert.ok(!r.success, 'non-boolean value must be rejected');
    assert.match(r.error || r.output, /boolean|true|false/i);
  });

  // CodeRabbit PR #2610 (comment 3127977404): loadConfig() must surface post_planning_gaps
  // in its return so callers can read config.post_planning_gaps regardless of whether
  // config.json exists, has the workflow section, or sets the flat key.
  test('loadConfig() returns post_planning_gaps default true when key absent', () => {
    const { loadConfig } = require('../gsd-core/bin/lib/config-loader.cjs');
    runGsdTools('config-ensure-section', tmpDir);
    // Remove the key to simulate older configs that pre-date the toggle
    const cfgPath = path.join(tmpDir, '.planning', 'config.json');
    const raw = JSON.parse(fs.readFileSync(cfgPath, 'utf-8'));
    delete raw.workflow.post_planning_gaps;
    fs.writeFileSync(cfgPath, JSON.stringify(raw, null, 2));
    const config = loadConfig(tmpDir);
    assert.strictEqual(config.post_planning_gaps, true);
  });

  test('loadConfig() returns post_planning_gaps:false when workflow.post_planning_gaps=false', () => {
    const { loadConfig } = require('../gsd-core/bin/lib/config-loader.cjs');
    runGsdTools('config-ensure-section', tmpDir);
    runGsdTools(['config-set', 'workflow.post_planning_gaps', 'false'], tmpDir);
    const config = loadConfig(tmpDir);
    assert.strictEqual(config.post_planning_gaps, false);
  });

  test('loadConfig() returns post_planning_gaps:true when workflow.post_planning_gaps=true', () => {
    const { loadConfig } = require('../gsd-core/bin/lib/config-loader.cjs');
    runGsdTools('config-ensure-section', tmpDir);
    runGsdTools(['config-set', 'workflow.post_planning_gaps', 'true'], tmpDir);
    const config = loadConfig(tmpDir);
    assert.strictEqual(config.post_planning_gaps, true);
  });
});

// ─── #1343 regression suite ──────────────────────────────────────────────────

// helper shared across #1343 cases
function wrapDecisions(body) {
  return `<decisions>\n## Decisions\n\n${body}\n</decisions>\n`;
}

describe('#1343 — parseDecisions tolerates freeform text before the colon (regressions)', () => {
  // ── 1. Parenthetical before colon now parses ─────────────────────────────

  test('all three ids extracted when one bullet has a parenthetical before :**', () => {
    const md = wrapDecisions(
      '- **D-01:** a\n' +
      '- **D-02 (note before colon):** b\n' +
      '- **D-03 [robust]:** c\n'
    );
    const ds = parseDecisions(md);
    assert.deepStrictEqual(
      ds.map(d => d.id),
      ['D-01', 'D-02', 'D-03'],
      'D-02 with parenthetical must not be dropped'
    );
    assert.strictEqual(ds.length, 3);
  });

  test('text is preserved for parenthetical bullet', () => {
    const md = wrapDecisions('- **D-02 (note before colon):** b\n');
    const ds = parseDecisions(md);
    assert.strictEqual(ds[0].id, 'D-02');
    assert.strictEqual(ds[0].text, 'b');
  });

  // ── 2. Bracket tags still captured + drive trackable ────────────────────

  test('[informational] tag makes trackable:false', () => {
    const md = wrapDecisions(
      '- **D-04 [informational]:** x\n' +
      '- **D-05:** y\n'
    );
    const ds = parseDecisions(md);
    const d04 = ds.find(d => d.id === 'D-04');
    const d05 = ds.find(d => d.id === 'D-05');
    assert.ok(d04, 'D-04 must be present');
    assert.ok(d04.tags.includes('informational'), 'D-04 tags must include informational');
    assert.strictEqual(d04.trackable, false, 'D-04 must be non-trackable');
    assert.ok(d05, 'D-05 must be present');
    assert.strictEqual(d05.trackable, true, 'D-05 must be trackable');
  });

  // ── 3. Bracket + parenthetical together ─────────────────────────────────

  test('D-06 [robust] (note) parses correctly', () => {
    const md = wrapDecisions('- **D-06 [robust] (note):** z\n');
    const ds = parseDecisions(md);
    assert.strictEqual(ds.length, 1);
    assert.strictEqual(ds[0].id, 'D-06');
    assert.ok(ds[0].tags.includes('robust'), 'tags must include robust');
    assert.strictEqual(ds[0].text, 'z');
  });

  // ── 4. Parse-miss WARN floor ─────────────────────────────────────────────

  test('genuinely unparseable bullet (colon inside pre-colon run) is excluded and warns', () => {
    // `D-07 ratio 3:1` has a colon in the pre-colon run; after [^:*]* matches up
    // to the first colon, the `:**` anchor fails → bulletRe does not match → falls
    // through to the parse-miss guard, which must warn and skip.
    const md = wrapDecisions('- **D-07 ratio 3:1:** w\n');

    const warnMessages = [];
    const origWarn = console.warn;
    try {
      console.warn = (...args) => {
        warnMessages.push(args.join(' '));
      };
      const ds = parseDecisions(md);
      assert.strictEqual(ds.length, 0, 'unparseable bullet must be excluded from results');
    } finally {
      console.warn = origWarn;
    }

    assert.ok(
      warnMessages.some(m => m.includes('D-07')),
      `expected a console.warn mentioning D-07, got: ${JSON.stringify(warnMessages)}`
    );
  });

  // ── Test A — malformed D-bullet must not corrupt previous decision's text ─

  test('D-02 malformed flush: D-01 text stays clean, continuation does not attach', () => {
    // D-02 has a colon inside the pre-colon run ("ratio 3:1"), so bulletRe rejects
    // it and the parse-miss guard fires. Before this fix the guard skipped WITHOUT
    // flushing, leaving current=D-01; the following indented continuation line was
    // then mis-appended to D-01's text.
    const md = wrapDecisions(
      '- **D-01:** first decision\n' +
      '- **D-02 ratio 3:1:** malformed (unparseable, has colon in pre-colon run)\n' +
      '    indented continuation that must NOT attach to D-01\n' +
      '- **D-03:** third decision\n'
    );

    const warnMessages = [];
    const origWarn = console.warn;
    try {
      console.warn = (...args) => { warnMessages.push(args.join(' ')); };
      const ds = parseDecisions(md);

      assert.deepStrictEqual(
        ds.map(d => d.id),
        ['D-01', 'D-03'],
        'only D-01 and D-03 should be present (D-02 dropped)'
      );

      const d01 = ds.find(d => d.id === 'D-01');
      assert.ok(d01, 'D-01 must be present');
      assert.strictEqual(
        d01.text,
        'first decision',
        'D-01 text must be exactly "first decision", not polluted by continuation'
      );
      assert.ok(!d01.text.includes('indented'), 'D-01 text must NOT contain "indented"');

      const d03 = ds.find(d => d.id === 'D-03');
      assert.ok(d03, 'D-03 must be present');
    } finally {
      console.warn = origWarn;
    }

    assert.ok(
      warnMessages.some(m => m.includes('D-02')),
      `expected a console.warn mentioning D-02, got: ${JSON.stringify(warnMessages)}`
    );
  });

  // ── Test B — malformed/unterminated bracket tag: safe tagless trackable ──

  test('D-09 [informational: (missing ]) yields tags=[] and trackable=true', () => {
    // "- **D-09 [informational:** body" has no closing `]` so the optional bracket
    // group in bulletRe does not match, leaving tags=[]. The decision is still
    // captured because the ID and `:**` are intact.
    //
    // This is the intentional SAFE DIRECTION for the coverage gate: a tagless
    // trackable decision can only make the gate STRICTER (it counts toward required
    // decisions), never produce a false pass. An alternative that silently turned
    // the decision non-trackable could allow a gate bypass.
    const md = wrapDecisions('- **D-09 [informational:** body\n');
    const ds = parseDecisions(md);
    assert.strictEqual(ds.length, 1, 'D-09 should be present');
    assert.strictEqual(ds[0].id, 'D-09');
    assert.deepStrictEqual(ds[0].tags, [], 'tags must be empty (unclosed bracket not parsed)');
    assert.strictEqual(ds[0].trackable, true, 'trackable must be true (no non-trackable tag matched)');
  });

  // ── 5. Non-regression: plain bullet + continuation ───────────────────────

  test('D-08 with continuation line parses correctly', () => {
    const md = wrapDecisions(
      '- **D-08:** ok\n' +
      '  continuation text here\n'
    );
    const ds = parseDecisions(md);
    assert.strictEqual(ds.length, 1);
    assert.strictEqual(ds[0].id, 'D-08');
    assert.ok(ds[0].text.includes('ok'), 'text must include bullet text');
    assert.ok(ds[0].text.includes('continuation'), 'text must include continuation');
  });

  test('existing numeric and bracket forms unchanged', () => {
    const md = wrapDecisions(
      '- **D-42:** numeric id\n' +
      '- **D-INFRA-01 [deferred]:** alphanumeric id\n'
    );
    const ds = parseDecisions(md);
    assert.deepStrictEqual(ds.map(d => d.id), ['D-42', 'D-INFRA-01']);
    assert.ok(ds[1].tags.includes('deferred'));
    assert.strictEqual(ds[1].trackable, false);
  });
});