import { RpcProvider } from "worker-rpc";
import ChartDownloaderWorker from "./chartDownloader.worker?worker";
import { dbClient, getDbClient } from "../db/client";
import type { BindParams } from "sql.js";

const worker = new ChartDownloaderWorker();
const rpcProvider = new RpcProvider((message, transfer) =>
  worker.postMessage(message, transfer),
);
worker.onmessage = (e) => rpcProvider.dispatch(e.data);

export const chartDownloaderEvent = new Event("startDownloadingCharts");

document.addEventListener("startDownloadingCharts", async () => {
  rpcProvider.registerRpcHandler("db", async ({ cmd, ...args }) =>
    dbClient.rpc(cmd, args),
  );

  rpcProvider.signal("start");
});

interface Args {
  s: string;
  p?: BindParams;
}