/**
 * /ship → /document-release Step 18 dispatch stays wired AND visible.
 *
 * The v1.54.0.0 carve (46c1fae7) moved Step 18 (documentation sync) out of
 * the ship skeleton into sections/pr-body.md. The wiring survived, but on
 * the Claude host the skeleton stopped saying "document-release" anywhere
 * in the workflow body — the dispatch became invisible at the decision
 * points and "the idea of running document-release as part of ship got
 * lost". This tripwire pins both halves so neither can silently regress:
 *
 *  - the carved section keeps the full dispatch contract (imperative,
 *    subagent_type, JSON return keys, non-blocking failure), and
 *  - the Claude skeleton names "the /document-release subagent" at its
 *    three touchpoints (manifest trigger via section-index + STOP pointer,
 *    Step 17 handoff, hoisted doc-sync invariant) while the imperative
 *    itself stays carved.
 *
 * Structural backstop lives in test/helpers/carve-guards.ts (ship entry);
 * this named test documents the regression story. Behavioral proof is the
 * ship-docsync E2E (test/skill-e2e-ship-docsync.test.ts).
 */
import { describe, test, expect } from 'bun:test';
import * as fs from 'fs';
import * as path from 'path';

const ROOT = path.join(import.meta.dir, '..');

const SECTION_SITES = [
  path.join(ROOT, 'ship', 'sections', 'pr-body.md'),
  path.join(ROOT, 'ship', 'sections', 'pr-body.md.tmpl'),
];

// ship/SKILL.md only — NOT the claude golden: test/host-config.test.ts
// already enforces golden == generated byte-for-byte, so substring asserts
// on the golden would be pure duplication. The codex/factory goldens ARE
// asserted below because for them the check is content (the inlined
// section survived generation), which byte-equality alone doesn't prove.
const CLAUDE_SKELETON = path.join(ROOT, 'ship', 'SKILL.md');
const INLINED_GOLDENS = [
  path.join(ROOT, 'test', 'fixtures', 'golden', 'codex-ship-SKILL.md'),
  path.join(ROOT, 'test', 'fixtures', 'golden', 'factory-ship-SKILL.md'),
];

const CARVED_IMPERATIVE = 'Dispatch /document-release as a subagent';

describe('/ship Step 18 dispatches /document-release (carve visibility)', () => {
  test('carved section carries the full dispatch contract', () => {
    for (const file of SECTION_SITES) {
      const content = fs.readFileSync(file, 'utf-8');
      expect(content).toContain(
        '## Step 18: Documentation sync (via subagent, before PR creation)'
      );
      expect(content).toContain(CARVED_IMPERATIVE);
      expect(content).toContain('subagent_type: "general-purpose"');
      // The JSON return contract Step 19 bakes into the PR body.
      expect(content).toContain('"files_updated"');
      expect(content).toContain('"commit_sha"');
      expect(content).toContain('"pushed"');
      expect(content).toContain('"documentation_section"');
      // Deliberate design: docs sync never holds a ship hostage.
      expect(content).toContain('Do not block /ship on subagent failure');
      // These four strings are the ship-docsync E2E's dispatch-matcher markers
      // (test/skill-e2e-ship-docsync.test.ts): the first two are INCLUSION
      // markers (verbatim from the dictated Step 18 subagent prompt); the last
      // two are EXCLUSION markers (section scaffolding that disqualifies a
      // whole-section paste). Rewording any of them in pr-body.md.tmpl silently
      // deadens the paid matcher; update all four in lockstep.
      expect(content).toContain('You are executing the /document-release workflow');
      expect(content).toContain('.claude/skills/gstack/document-release/SKILL.md');
      expect(content).toContain('## Step 19: Create PR/MR');
      expect(content).toContain('Parent processing:');
    }
  });

  test('claude skeleton names the subagent at all three touchpoints', () => {
    const content = fs.readFileSync(CLAUDE_SKELETON, 'utf-8');
    // Manifest trigger — renders into the section-index row AND the STOP
    // pointer, so it must appear at least twice.
    const trigger =
      'dispatching the /document-release subagent to sync docs (Step 18) and then creating or updating the PR/MR (Step 19)';
    expect(content.split(trigger).length - 1).toBeGreaterThanOrEqual(2);
    // Step 17 handoff.
    expect(content).toContain(
      'Step 18 (dispatch the /document-release subagent to sync docs)'
    );
    // Hoisted doc-sync invariant (beside the PR-title invariant).
    expect(content).toContain('**Doc-sync invariant');
    expect(content).toContain('dispatches the /document-release subagent');
    // The STOP-Read pointer still routes to the carved section.
    expect(content).toMatch(
      /> \*\*STOP\.\*\*[^\n]*Read `[^`]*ship\/sections\/pr-body\.md`/
    );
    // Ordering pin: the hoisted invariant must sit ABOVE the pr-body STOP
    // pointer (mustStayInSkeleton asserts presence only — a future edit could
    // drift the paragraph below the STOP with every registry check green).
    const invariantIdx = content.indexOf('**Doc-sync invariant');
    const stopIdx = content.indexOf(
      '> **STOP.** Before dispatching the /document-release subagent'
    );
    expect(invariantIdx).toBeGreaterThan(-1);
    expect(stopIdx).toBeGreaterThan(invariantIdx);
  });

  test('the dispatch imperative stays carved out of the claude skeleton', () => {
    const content = fs.readFileSync(CLAUDE_SKELETON, 'utf-8');
    expect(content).not.toContain(CARVED_IMPERATIVE);
  });

  test('manifest trigger names the subagent', () => {
    const manifest = JSON.parse(
      fs.readFileSync(
        path.join(ROOT, 'ship', 'sections', 'manifest.json'),
        'utf-8'
      )
    );
    const prBody = manifest.sections.find(
      (s: { id: string }) => s.id === 'pr-body'
    );
    expect(prBody).toBeDefined();
    expect(prBody.trigger).toContain('the /document-release subagent');
  });

  test('codex + factory goldens inline Step 18 before Step 19', () => {
    for (const file of INLINED_GOLDENS) {
      const content = fs.readFileSync(file, 'utf-8');
      const step18 = content.indexOf(
        '## Step 18: Documentation sync (via subagent, before PR creation)'
      );
      const step19 = content.indexOf('## Step 19: Create PR/MR');
      expect(step18).toBeGreaterThan(-1);
      expect(step19).toBeGreaterThan(step18);
      expect(content).toContain(CARVED_IMPERATIVE);
    }
  });
});