// supporters/(뷰성형외과 샘플) → templates/supporters-astro/ 내보내기.
// 병원 고유 데이터(글·데이터 JSON·이미지·home_text·구조 기준선)를 빼고 빈 데이터 세트(scripts/template/data)를 넣는다.
// 멱등: 대상 폴더를 지우고 다시 만든다.
//   node scripts/export_template.mjs [--dest ../templates/supporters-astro]
import { cpSync, rmSync, mkdirSync, readdirSync, readFileSync, writeFileSync, existsSync } from 'node:fs';
import { join, relative, sep } from 'node:path';
import { fileURLToPath } from 'node:url';

const SRC = fileURLToPath(new URL('../', import.meta.url)).replace(/\/$/, '');
const argDest = process.argv.indexOf('--dest');
const DEST = argDest > -1 ? process.argv[argDest + 1] : join(SRC, '..', 'templates', 'supporters-astro');
const TPL = join(SRC, 'scripts', 'template');

// 복사에서 뺄 경로 (SRC 기준 상대). 디렉터리는 하위 전부.
const EXCLUDE = [
  'node_modules', 'dist', '.astro', '.vercel', 'docs',
  'src/content/posts', 'public/img', 'scripts/home_text.txt', 'scripts/gate/layout-baseline.json', 'scripts/template', 'README.md',
];
const excluded = (abs) => {
  const rel = relative(SRC, abs).split(sep).join('/');
  return EXCLUDE.some((e) => rel === e || rel.startsWith(e + '/'));
};

rmSync(DEST, { recursive: true, force: true });
mkdirSync(DEST, { recursive: true });
cpSync(SRC, DEST, { recursive: true, filter: (s) => !excluded(s) });

// 빈 데이터 세트
for (const f of readdirSync(join(TPL, 'data'))) cpSync(join(TPL, 'data', f), join(DEST, 'src', 'data', f));
mkdirSync(join(DEST, 'src', 'content', 'posts'), { recursive: true });
writeFileSync(join(DEST, 'src', 'content', 'posts', '.gitkeep'), '');
mkdirSync(join(DEST, 'public', 'img'), { recursive: true });
writeFileSync(join(DEST, 'public', 'img', '.gitkeep'), '');
writeFileSync(join(DEST, 'scripts', 'home_text.txt'), '');
cpSync(join(TPL, 'README.template.md'), join(DEST, 'README.md'));

// 배포 주소 자리표시자
const sub = (rel, from, to) => { const p = join(DEST, rel); const s = readFileSync(p, 'utf8'); if (!s.includes(from)) throw new Error(`${rel}: "${from}" 없음`); writeFileSync(p, s.split(from).join(to)); };
sub('astro.config.mjs', 'https://view-supporters-sample.vercel.app', 'https://supporters-__CLINIC_ID__.vercel.app');
sub('vercel.json', 'https://view-supporters-sample.vercel.app', 'https://supporters-__CLINIC_ID__.vercel.app');
const pkgPath = join(DEST, 'package.json');
const pkg = JSON.parse(readFileSync(pkgPath, 'utf8'));
pkg.name = 'supporters-template';
writeFileSync(pkgPath, JSON.stringify(pkg, null, 2) + '\n');

// 남은 병원 고유 문자열 검사
const CLINIC_RE = /뷰성형외과|viewclinic|ViewclinicKR|안성민|o2oteam/;
const leaks = [];
const walk = (d) => { for (const f of readdirSync(d, { withFileTypes: true })) { const p = join(d, f.name); if (f.isDirectory()) { if (f.name !== 'node_modules') walk(p); } else if (/\.(astro|ts|mjs|json|css)$/.test(f.name) && !p.endsWith('export_template.mjs') && !p.includes('/scripts/gate/fixtures/') && CLINIC_RE.test(readFileSync(p, 'utf8'))) leaks.push(relative(DEST, p)); } };
walk(DEST);
if (leaks.length) { console.error('병원 고유 문자열이 남은 파일:\n  ' + leaks.join('\n  ')); process.exit(1); }
console.log(`템플릿 내보내기 완료: ${DEST}${existsSync(join(DEST, 'node_modules')) ? '' : ' (npm ci 필요)'}`);