"use strict";

const path = require("node:path");

async function main() {
  const modulePath = path.resolve(process.argv[2]);
  const createModule = require(modulePath);
  const module = await createModule({ print() {}, printErr() {} });
  const capabilities = JSON.parse(
    module.ccall("mfem_demo_capabilities", "string", [], []),
  );
  const result = JSON.parse(
    module.ccall("mfem_demo_solve", "string", ["number", "number"], [6, 2]),
  );
  if (!capabilities.wasm || !result.ok || result.trueDofs <= 0 || result.iterations <= 0) {
    throw new Error(`Unexpected MFEM Wasm result: ${JSON.stringify(result)}`);
  }
  process.stdout.write(
    `MFEM ${capabilities.mfemVersion} Wasm solve: dofs=${result.trueDofs} iterations=${result.iterations} l2=${result.l2Error}\n`,
  );
}

main().catch((error) => {
  console.error(error);
  process.exitCode = 1;
});