import assert from 'node:assert/strict';
import fs from 'node:fs';
import os from 'node:os';
import path from 'node:path';
import test from 'node:test';
import {
  buildPageTemplateMandatoryInstruction,
  collectPageTemplateViolations,
  extractStyleSelectors,
  resolveSelectedPageTemplateSkill,
  validatePublishedPageAgainstTemplate,
} from './page-template-enforcement.mjs';

test('resolveSelectedPageTemplateSkill reads latest user selectedChatSkill', () => {
  const skill = resolveSelectedPageTemplateSkill([
    { role: 'user', metadata: { memindRun: { selectedChatSkill: 'page-template-travel' } } },
    { role: 'assistant', content: [{ type: 'text', text: 'done' }] },
  ]);
  assert.equal(skill, 'page-template-travel');
});

test('validatePublishedPageAgainstTemplate rejects extra css selectors', () => {
  const templatePath = path.join(process.cwd(), 'skills/page-template-travel/templates/travel-hero.html');
  const templateHtml = fs.readFileSync(templatePath, 'utf8');
  const driftedHtml = templateHtml
    .replace('{{PAGE_TITLE}}', '标题')
    .replace('{{PAGE_DESCRIPTION}}', '摘要')
    .replace('{{MINDSPACE_COVER_JSON}}', '{}')
    .replace('{{ACCENT}}', '#0ea5e9')
    .replace('{{ACCENT2}}', '#0369a1')
    .replace('{{HERO_EYEBROW}}', '标签')
    .replace('{{HERO_HEADLINE}}', '主标题')
    .replace('{{HERO_SUBTITLE}}', '副标题')
    .replace('{{HERO_IMAGE}}', 'assets/hero.webp')
    .replace('{{MAIN_CONTENT_HTML}}', '<p>正文</p>')
    .replace(
      '.content h2 { color: #fff; margin: 2.5rem 0 1rem; font-size: clamp(22px, 4vw, 28px); letter-spacing: -.01em; }',
      '.content h2 { color: #fff; margin: 2.5rem 0 1rem; font-size: clamp(22px, 4vw, 28px); letter-spacing: -.01em; }\n    .spot-card { padding: 12px; }',
    );

  const result = validatePublishedPageAgainstTemplate({
    skillName: 'page-template-travel',
    html: driftedHtml,
    h5Root: process.cwd(),
  });
  assert.equal(result.ok, false);
  assert.equal(result.reason, 'style_drift');
});

test('validatePublishedPageAgainstTemplate accepts filled travel template', () => {
  const templatePath = path.join(process.cwd(), 'skills/page-template-travel/templates/travel-hero.html');
  let html = fs.readFileSync(templatePath, 'utf8');
  html = html
    .replaceAll('{{PAGE_TITLE}}', '标题')
    .replaceAll('{{PAGE_DESCRIPTION}}', '摘要')
    .replaceAll('{{MINDSPACE_COVER_JSON}}', '{}')
    .replaceAll('{{ACCENT}}', '#0ea5e9')
    .replaceAll('{{ACCENT2}}', '#0369a1')
    .replaceAll('{{HERO_EYEBROW}}', '标签')
    .replaceAll('{{HERO_HEADLINE}}', '主标题')
    .replaceAll('{{HERO_SUBTITLE}}', '副标题')
    .replaceAll('{{HERO_IMAGE}}', 'assets/hero.webp')
    .replaceAll('{{MAIN_CONTENT_HTML}}', '<h2>章节</h2><p>正文</p>');

  const result = validatePublishedPageAgainstTemplate({
    skillName: 'page-template-travel',
    html,
    h5Root: process.cwd(),
  });
  assert.equal(result.ok, true);
});

test('collectPageTemplateViolations scans touched public html files', () => {
  const root = fs.mkdtempSync(path.join(os.tmpdir(), 'page-template-guard-'));
  const publishDir = path.join(root, 'public');
  fs.mkdirSync(publishDir, { recursive: true });
  const xianjuPath = path.join(process.cwd(), 'MindSpace/5331128a-810e-42ef-b4f6-95a075d12787/public/xianju-water-guide.html');
  if (fs.existsSync(xianjuPath)) {
    fs.copyFileSync(xianjuPath, path.join(publishDir, 'xianju-water-guide.html'));
    const violations = collectPageTemplateViolations({
      messages: [
        {
          role: 'user',
          metadata: { memindRun: { selectedChatSkill: 'page-template-travel' } },
        },
      ],
      publishDir: root,
      syncResult: { publicHtmlRelativePaths: ['public/xianju-water-guide.html'] },
      h5Root: process.cwd(),
    });
    assert.ok(violations.length >= 1);
    assert.equal(violations[0].reason, 'style_drift');
  } else {
    assert.match(buildPageTemplateMandatoryInstruction('page-template-travel'), /禁止从零手写/);
  }
});

test('extractStyleSelectors ignores at-rules', () => {
  const selectors = extractStyleSelectors('@media (max-width: 600px) { .hero { color: red; } } .hero { color: blue; }');
  assert.deepEqual([...selectors], ['.hero']);
});