import StreamZip from 'node-stream-zip';
import sharp from 'sharp';

/** @type {import('./$types').RequestHandler} */
export async function GET({ params }) {

  let entryData = null;
  try {
    const zip = new StreamZip.async({ file: `./zip/${params.slug}.zip` });
    const entries = Object.values(await zip.entries()).filter(entry => entry.name.endsWith('.jpg'));
    const entry = entries[Math.floor(Math.random() * entries.length)];
    const content = await zip.entryData(entry.name);
    await zip.close();
    entryData = await sharp(content).resize(400).avif({ quality: 70, effort: 0 }).toBuffer()
  } catch (err) {
    console.error(err);
  }
  return new Response(entryData, {
    headers: {
      'Content-Type': 'image/avif',
      'Content-Disposition': 'inline'
    }
  });
}