import { test } from 'node:test';
import { strict as assert } from 'node:assert';
import { validateBriefContent } from '../../lib/validators/brief-validator.mjs';

const GOOD_BRIEF = `---
type: trekbrief
brief_version: "2.0"
created: 2026-04-30
task: "Add JWT auth to API"
slug: jwt-auth
project_dir: .claude/projects/2026-04-30-jwt-auth/
research_topics: 2
research_status: pending
auto_research: false
interview_turns: 5
source: interview
---

# Task: JWT auth

## Intent

Why this matters.

## Goal

What success looks like.

## Success Criteria

- All tests pass.
`;

test('validateBrief — happy path', () => {
  const r = validateBriefContent(GOOD_BRIEF, { strict: true });
  assert.equal(r.valid, true, JSON.stringify(r.errors));
});

test('validateBrief — wrong type rejected', () => {
  const t = GOOD_BRIEF.replace('type: trekbrief', 'type: notabrief');
  const r = validateBriefContent(t);
  assert.equal(r.valid, false);
  assert.ok(r.errors.find(e => e.code === 'BRIEF_WRONG_TYPE'));
});

test('validateBrief — missing required field', () => {
  const t = GOOD_BRIEF.replace(/^research_topics: 2\n/m, '');
  const r = validateBriefContent(t);
  assert.equal(r.valid, false);
  assert.ok(r.errors.find(e => e.code === 'BRIEF_MISSING_FIELD' && /research_topics/.test(e.message)));
});

test('validateBrief — bad research_status value', () => {
  const t = GOOD_BRIEF.replace('research_status: pending', 'research_status: maybe');
  const r = validateBriefContent(t);
  assert.equal(r.valid, false);
  assert.ok(r.errors.find(e => e.code === 'BRIEF_BAD_STATUS'));
});

test('validateBrief — state machine: research_topics > 0 + skipped without partial = error', () => {
  const t = GOOD_BRIEF.replace('research_status: pending', 'research_status: skipped');
  const r = validateBriefContent(t);
  assert.equal(r.valid, false);
  assert.ok(r.errors.find(e => e.code === 'BRIEF_STATE_INCOHERENT'));
});

test('validateBrief — state machine: skipped + brief_quality: partial = warning only', () => {
  const t = GOOD_BRIEF
    .replace('research_status: pending', 'research_status: skipped')
    .replace('source: interview', 'source: interview\nbrief_quality: partial');
  const r = validateBriefContent(t);
  assert.equal(r.valid, true, JSON.stringify(r.errors));
  assert.ok(r.warnings.find(w => w.code === 'BRIEF_PARTIAL_SKIPPED'));
});

test('validateBrief — strict requires body sections', () => {
  const t = GOOD_BRIEF.replace(/## Intent\n\nWhy this matters\.\n\n/, '');
  const r = validateBriefContent(t, { strict: true });
  assert.equal(r.valid, false);
  assert.ok(r.errors.find(e => e.code === 'BRIEF_MISSING_SECTION'));
});

test('validateBrief — soft demotes section errors to warnings', () => {
  const t = GOOD_BRIEF.replace(/## Goal\n\nWhat success looks like\.\n\n/, '');
  const r = validateBriefContent(t, { strict: false });
  assert.equal(r.valid, true);
  assert.ok(r.warnings.find(w => w.code === 'BRIEF_MISSING_SECTION'));
});

test('validateBrief — missing frontmatter is hard error', () => {
  const r = validateBriefContent('# just markdown\n\nno frontmatter\n');
  assert.equal(r.valid, false);
  assert.ok(r.errors.find(e => e.code === 'FM_MISSING'));
});

const REVIEW_AS_BRIEF = `---
type: trekreview
task: "Review delivered trekreview v1.0"
slug: trekreview
project_dir: .claude/projects/2026-05-01-trekreview/
findings:
  - 0123456789abcdef0123456789abcdef01234567
  - fedcba9876543210fedcba9876543210fedcba98
---

# Review brief

## Intent

Adversarial review of delivered trekreview v1.0.

## Goal

Find what was missed.

## Success Criteria

- All BLOCKER findings get a fix-plan.
`;

test('validateBrief — trekreview type accepted with findings array', () => {
  const r = validateBriefContent(REVIEW_AS_BRIEF, { strict: true });
  assert.equal(r.valid, true, JSON.stringify(r.errors));
});

test('validateBrief — trekreview without findings rejected (BRIEF_MISSING_FIELD)', () => {
  const t = REVIEW_AS_BRIEF.replace(/findings:\n  - 0123[\s\S]*?- fedcba[0-9a-f]+\n/, '');
  const r = validateBriefContent(t);
  assert.equal(r.valid, false);
  assert.ok(
    r.errors.find(e => e.code === 'BRIEF_MISSING_FIELD' && /findings/.test(e.message)),
    `expected BRIEF_MISSING_FIELD for findings; got ${JSON.stringify(r.errors)}`,
  );
});

test('validateBrief — trekreview with findings as scalar (not array) rejected (BRIEF_BAD_FINDINGS_TYPE)', () => {
  const t = REVIEW_AS_BRIEF.replace(
    /findings:\n  - 0123[\s\S]*?- fedcba[0-9a-f]+/,
    'findings: not-an-array',
  );
  const r = validateBriefContent(t);
  assert.equal(r.valid, false);
  assert.ok(r.errors.find(e => e.code === 'BRIEF_BAD_FINDINGS_TYPE'));
});

test('validateBrief — wrong-type error message includes accepted set', () => {
  const t = REVIEW_AS_BRIEF.replace('type: trekreview', 'type: somethingelse');
  const r = validateBriefContent(t);
  assert.equal(r.valid, false);
  const wrongType = r.errors.find(e => e.code === 'BRIEF_WRONG_TYPE');
  assert.ok(wrongType);
  assert.ok(/trekbrief/.test(wrongType.message));
  assert.ok(/trekreview/.test(wrongType.message));
});