"use strict";
const fs = require("fs");
const path = require("path");

// Patch fetch before loading the module so the WASM loader never reaches it
const wasmPath = path.join(
  path.dirname(require.resolve("@pybricks/mpy-cross-v6/build/mpy-cross-v6.js")),
  "mpy-cross-v6.wasm",
);
const wasmBinary = fs.readFileSync(wasmPath);

// Monkey-patch the Emscripten module to inject wasmBinary
const originalMpyCross = require("@pybricks/mpy-cross-v6/build/mpy-cross-v6");
const MpyCross = (opts) => originalMpyCross({ ...opts, wasmBinary });

function compile(fileName, fileContents, options) {
  return new Promise(function (resolve, reject) {
    try {
      const args = [...(options || []), fileName];
      MpyCross({
        arguments: ["-o", "main.mpy", "__main__.py"],
        inputFileContents: fileContents,
        callback: function (status, mpy, out, err) {
          resolve({ status, mpy, out, err });
        },
      });
    } catch (err) {
      reject(err);
    }
  });
}

const myCode = `
from pybricks.hubs import PrimeHub
from pybricks.parameters import Color
hub = PrimeHub()
hub.light.on(Color.GREEN)
`;

compile("main.py", myCode, []).then((result) => {
  if (result.status === 0) {
    fs.writeFileSync("main.mpy", result.mpy);
    console.log("Success! Written to main.mpy");
  } else {
    console.error("Compiler error:", result.err);
  }
});