import { buildBlockLight } from "./block-light.js";

self.onmessage = ({ data: request }) => {
  try {
    const start = performance.now();
    const result = buildBlockLight(new Map(request.blocks), new Map(request.materials), request.bounds);
    const { min, size, data, sourceCount, blockLevels, skyLevels } = result;
    self.postMessage({ generation: request.generation,
      field: { min, size, data, sourceCount, blockLevels, skyLevels },
      milliseconds: performance.now() - start,
    }, [data.buffer, blockLevels.buffer, skyLevels.buffer]);
  } catch (error) {
    self.postMessage({ generation: request.generation, error: error.message });
  }
};