import { waitForWu } from 'wu-framework/adapters/shared';

const wu = await waitForWu();

let release;

wu.define('sumador', {
  mount(container, context) {
    container.innerHTML = `
      <link rel="stylesheet" href="/mf-sumador/styles.css">
      <section aria-labelledby="service-title">
        <h2 id="service-title">Servicio de suma</h2>
        <p role="status">Listo para recibir solicitudes.</p>
      </section>
    `;
    const status = container.querySelector('[role="status"]');

    release = context.wu.handle('ejemplo:suma', ({ a, b }, request) => {
      if (!Number.isFinite(a) || !Number.isFinite(b)) {
        throw new TypeError('Escribe dos números finitos.');
      }
      const total = a + b;
      if (!Number.isFinite(total)) {
        throw new RangeError('La suma excede el rango numérico.');
      }
      status.textContent = `Respondí a ${request.caller.appName}: ${a} + ${b} = ${total}`;
      return total;
    }, {
      version: '1.0.0',
      allow: ['cliente-suma'],
    });
  },

  unmount(container) {
    release?.();
    release = undefined;
    container.replaceChildren();
  },
});