#!/usr/bin/env node
// 기준선 글을 다시 받아 온다. style_profile.mjs의 BASE 값을 다시 재려면 이 파일로 원문을 받는다.
//
//   npm i playwright-core          # 브라우저 바이너리는 ~/.cache/ms-playwright 에 있어야 한다
//   node scripts/fetch_reference.mjs <출력디렉터리>
//
// techblog.woowahan.com은 curl·fetch·리더 프록시를 403으로 막는다. 실제 브라우저라야 통과한다.
import { chromium } from 'playwright-core';
import { writeFileSync, mkdirSync, readdirSync } from 'node:fs';
import { join } from 'node:path';

const URLS = [
  'https://techblog.woowahan.com/26388/',
  'https://techblog.woowahan.com/17416/',
  'https://techblog.woowahan.com/13429/',
  'https://techblog.woowahan.com/20161/',
  'https://techblog.woowahan.com/11238/',
];

const outDir = process.argv[2] || 'reference-corpus';
mkdirSync(outDir, { recursive: true });

// 설치된 chromium 아무거나 고른다
const root = join(process.env.HOME, '.cache/ms-playwright');
const dir = readdirSync(root).filter(d => d.startsWith('chromium-')).sort().pop();
const exe = join(root, dir, 'chrome-linux64', 'chrome');

const browser = await chromium.launch({ executablePath: exe, headless: true });
const ctx = await browser.newContext({
  locale: 'ko-KR',
  userAgent: 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36',
});

for (const url of URLS) {
  const page = await ctx.newPage();
  try {
    await page.goto(url, { waitUntil: 'domcontentloaded', timeout: 60000 });
    await page.waitForTimeout(2500);
    const text = await page.evaluate(() => {
      const root = document.querySelector('.post-content, .entry-content, article, main') || document.body;
      const out = [];
      const walk = (el) => {
        for (const n of el.children) {
          const tag = n.tagName.toLowerCase();
          if (['script', 'style', 'nav', 'aside', 'footer'].includes(tag)) continue;
          if (/^h[1-6]$/.test(tag)) out.push(`\n## ${n.innerText.trim()}\n`);
          else if (tag === 'p') { const t = n.innerText.trim(); if (t) out.push(t); }
          else if (tag === 'li') { const t = n.innerText.trim(); if (t) out.push('- ' + t); }
          else if (tag === 'pre') out.push('```\n[CODE]\n```');
          else if (tag === 'table') out.push('[TABLE]');
          else walk(n);
        }
      };
      walk(root);
      return out.join('\n\n');
    });
    const id = url.match(/(\d+)/)[1];
    writeFileSync(join(outDir, `woowa-${id}.md`), text);
    console.log(`OK   ${url} (${text.length}자)`);
  } catch (e) {
    console.log(`FAIL ${url}: ${e.message.split('\n')[0]}`);
  }
  await page.close();
}
await browser.close();
console.log(`\n기준선 다시 재기:  node scripts/style_profile.mjs --baseline ${outDir}/*.md`);