import fs from "node:fs";
import path from "node:path";
import { createRequire } from "node:module";
import { parentPort, workerData } from "node:worker_threads";
import { pathToFileURL } from "node:url";

const facade = await import(workerData.facadePath);
const envelope = await import(workerData.envelopePath);
const build = workerData.buildDirectory;
globalThis.__dirname = `${build}${path.sep}`;
globalThis.require = createRequire(import.meta.url);
const loader = await import(pathToFileURL(path.join(build, "FreeCADWebCAMProbe.js")));
const kernel = await loader.default({
  wasmBinary: fs.readFileSync(path.join(build, "FreeCADWebCAMProbe.wasm")),
  locateFile: (file) => path.join(build, file),
  print: () => {},
  printErr: () => {},
});

let queue = new envelope.FacadeSerialQueue();
parentPort.postMessage({ kind: "ready", action: facade.CAM_PYTHON_FAMILY_BATCH_COMMAND });
parentPort.on("message", async (message) => {
  if (message.kind === "reset") {
    queue = new envelope.FacadeSerialQueue();
    parentPort.postMessage({ kind: "reset", requestId: message.requestId });
    return;
  }
  if (envelope.isFacadeCancel(message)) {
    if (!queue.cancel(message)) parentPort.postMessage(envelope.createFailure(message.requestId, "cancel_rejected", "request is not active"));
    return;
  }
  if (!facade.isCamPythonFamilyBatchRequest(message)) {
    parentPort.postMessage(envelope.createFailure(message.requestId || "invalid", "invalid_request", "CAM Python family batch envelope is invalid"));
    return;
  }
  const source = message.requestId.includes("cancel")
    ? new Promise((resolve) => setTimeout(() => resolve(kernel), 25))
    : kernel;
  parentPort.postMessage(await facade.dispatchCamPythonFamilyBatch(queue, message, source));
});