/**
 * باندل تک‌فایل برای Docker (release/app.js) بعد از nest build.
 * Prisma client + engines را در release/vendor می‌گذارد (نه node_modules تا gitignore نخورد).
 */
const esbuild = require('esbuild');
const {
  existsSync,
  mkdirSync,
  rmSync,
  cpSync,
  realpathSync,
} = require('fs');
const path = require('path');

const root = path.join(__dirname, '..');
const config = require(path.join(root, 'esbuild.release.config.cjs'));
const releaseDir = path.join(root, 'release');
const vendorDir = path.join(releaseDir, 'vendor');

function resolvePkg(name) {
  return path.dirname(require.resolve(`${name}/package.json`, { paths: [root] }));
}

function copyPrismaIntoRelease() {
  const prismaClientSrc = resolvePkg('@prisma/client');
  const prismaClientDest = path.join(vendorDir, '@prisma', 'client');
  mkdirSync(path.dirname(prismaClientDest), { recursive: true });
  cpSync(prismaClientSrc, prismaClientDest, { recursive: true });

  const candidates = [
    path.join(root, 'node_modules', '.prisma', 'client'),
    path.join(prismaClientSrc, '..', '.prisma', 'client'),
    path.join(path.dirname(prismaClientSrc), '.prisma', 'client'),
    path.join(prismaClientSrc, '..', '..', '.prisma', 'client'),
  ];

  const prismaEngineSrc = candidates.find((p) => existsSync(p));
  if (!prismaEngineSrc) {
    throw new Error(
      'Prisma generated client (.prisma/client) یافت نشد. ابتدا: pnpm --filter api exec prisma generate',
    );
  }

  const prismaEngineDest = path.join(vendorDir, '.prisma', 'client');
  mkdirSync(path.dirname(prismaEngineDest), { recursive: true });
  cpSync(realpathSync(prismaEngineSrc), prismaEngineDest, { recursive: true });
}

async function main() {
  const entry = config.entryPoints[0];
  const fallbackEntry = path.join(root, 'dist', 'src', 'main.js');
  if (!existsSync(entry)) {
    if (existsSync(fallbackEntry)) {
      config.entryPoints = [fallbackEntry];
    } else {
      console.error('dist/main.js یافت نشد. ابتدا اجرا کنید: pnpm --filter api build');
      process.exit(1);
    }
  }

  rmSync(releaseDir, { recursive: true, force: true });
  mkdirSync(releaseDir, { recursive: true });

  await esbuild.build(config);
  copyPrismaIntoRelease();

  console.log('نوشت:', config.outfile);
  console.log('Prisma client در release/vendor کپی شد.');
}

main().catch((err) => {
  console.error(err);
  process.exit(1);
});