import { CartBaseController } from "./cart_base_controller";

export default class extends CartBaseController {
  static targets = ["methods", "rates", "form"];

  connect() {
    this.formdata_event = this._formdata_event.bind(this);

    this.formTarget.addEventListener("formdata", this.formdata_event);
  }

  disconnect() {
    this.formTarget.removeEventListener("formdata", this.formdata_event);
  }

  _formdata_event(event) {
    this.processShippingAddress(event.formData);
  }

  async rates(event) {
    event.preventDefault();
    event.stopPropagation();

    if (!this.formTarget.checkValidity()) {
      this.adressTarget.classList.add("was-validated");
      return;
    }

    this.formTarget.classList.remove("was-validated");

    // FormDataEvent es muy reciente
    if (window.FormDataEvent) {
      // Esto lanza el evento formdata en el formulario
      new FormData(event.target);
    } else {
      // Fallback
      this.processShippingAddress(new FormData(event.target));
    }
  }

  payment(event) {
    event.preventDefault();
    event.stopPropagation();

    // FormDataEvent es muy reciente
    if (window.FormDataEvent) {
      // Esto lanza el evento formdata en el formulario
      new FormData(event.target);
    } else {
      this.processShippingRate(new FormData(event.target));
    }
  }

  async processShippingAddress(formData) {
    this.formDisabled = true;

    const email = this.email;
    const orderToken = this.token;

    const ship_address_attributes = this.formDataToObject(formData);
    const bill_address_attributes = ship_address_attributes;

    const response = await this.spree.checkout.orderUpdate(
      { orderToken },
      { order: { email, ship_address_attributes, bill_address_attributes } }
    );

    if (response.isFail()) {
      this.handleFailure(response);
      this.formDisabled = false;
      return;
    }

    const shippingMethods = await this.shippingMethods(orderToken);

    if (!shippingMethods) {
      this.formDisabled = false;
      return;
    }

    const shipping_rates = shippingMethods.included.filter(
      (x) => x.type == "shipping_rate"
    );
    // XXX: No hay varios paquetes
    const shipping_method = shippingMethods.data[0];
    const site = window.site;

    await this.render({ shipping_method, shipping_rates, site });

    const nextStep = document.querySelector(
      `#${this.element.dataset.scrollTo}`
    );
    if (nextStep) nextStep.scrollIntoView();
  }

  async processShippingRate(formData) {
    const rate = this.formDataToObject(formData);
    const orderToken = this.token;

    // XXX: Deshabilitar el formulario después del evento FormData, de
    // lo contrario el objeto queda vacío.
    this.ratesTarget.elements.forEach((x) => (x.disabled = true));

    const response = await window.spree.checkout.orderUpdate(
      { orderToken },
      { order: { shipments_attributes: [{ ...rate }] } }
    );

    if (response.isFail()) {
      this.handleFailure(response);
      return;
    }

    this.cart = response;

    // Continue to next step
    try {
      Turbolinks.visit(this.data.get("next"));
    } catch {
      window.location = this.data.get("next");
    }
  }

  async render(data = {}) {
    const template = window.templates[this.data.get("template")];

    this.methodsTarget.innerHTML = await this.engine.parseAndRender(
      template,
      data
    );
    this.ratesTarget.addEventListener("formdata", (event) =>
      this.processShippingRate(event.formData)
    );
  }
}