let exports;

async function init() {
    const resp = await fetch("./chess.wasm");
    if (!resp.ok) {
        throw new Error("fetch wasm failed ${resp.status} ${resp.statusText}");
    }

    const { instance } =
        await WebAssembly.instantiateStreaming(resp, {});

    exports = instance.exports;
}
await init();
self.postMessage({ type: "ready" });

self.onmessage = (e) => {
    const { id, method, args = [] } = e.data;
    try {
        const value = exports[method](...args);
        self.postMessage({ id, ok: true, value });
    } catch (err) {
        self.postMessage({ id, ok: false, error: String(err?.message ?? err) });
    }
};