import { optimizeImage } from 'wasm-image-optimization';
export interface Env {}

const handleRequest = async (
  request: Request,
  _env: Env,
  _ctx: ExecutionContext
): Promise<Response> => {
  const params = new URL(request.url).searchParams;
  const url = params.get('url');
  if (!url) {
    return new Response('url is required', { status: 400 });
  }
  const width = params.get('w');
  const quality = params.get('q');
  const srcImage = await fetch(url).then((res) => res.arrayBuffer());
  const image = await optimizeImage({
    image: srcImage,
    width: width ? parseInt(width) : undefined,
    quality: quality ? parseInt(quality) : undefined,
  });
  return new Response(image, {
    headers: {
      'Content-Type': 'image/webp',
      'Cache-Control': 'public, max-age=31536000, immutable',
    },
  });
};

export default {
  fetch: handleRequest,
};