sutty-base-jekyll-theme/_packs/controllers/contact_controller.js

import { Controller } from "stimulus";

/*
 * Sólo permite enviar el formulario de contacto después de unos
 * segundos, para evitar el spam.
 */
export default class extends Controller {
  static targets = ["submit"];

  connect() {
    if (!this.hasSubmitTarget) return;

    this.submitTarget.disabled = true;

    this._value = this.submitTarget.value;

    // Esperar un minuto desde que se carga la página hasta que se
    // permite enviar.
    this._interval = setInterval(() => {
      const delay = this.delay;

      if (this.delay == 0) {
        clearInterval(this._interval);
        this.submitTarget.disabled = false;
        this.submitTarget.value = this._value;
      } else {
        this.delay = delay - 1;
      }
    }, 1000);
  }

  get delay() {
    const delay = parseInt(this.element.dataset.delay);

    return isNaN(delay) ? 0 : delay;
  }

  set delay(value) {
    this.element.dataset.delay = value;
    this.submitTarget.value = `${this._value} (${value})`;
  }
}