⚠️ Breaking Changes en PrestaShop 9.1

// En tu modulo, verifica la version de PHP si necesitas
if (PHP_VERSION_ID < 80100) {
    throw new PrestaShopException('Este modulo requiere PHP 8.1 o superior');
}

// Nuevas features de PHP 8.5 que puedes usar:
// - pipe operator |>
// - Closures in const expressions
// - Asymmetric visibility (readonly promoted props)

// ANTES (PS 8) — funciona pero deprecated en PS 9
class MyAdminController extends FrameworkBundleAdminController
{
    public function indexAction()
    {
        $formHandler = $this->get('my_module.form.handler');
        $twig = $this->get('twig');
        // ...
    }
}

// AHORA (PS 9) — usar constructor injection
class MyAdminController extends FrameworkBundleAdminController
{
    public function __construct(
        private readonly FormHandlerInterface $formHandler,
        private readonly Environment $twig,
    ) {
        parent::__construct();
    }

    public function indexAction()
    {
        $form = $this->formHandler->getForm();
        // ...
    }
}

// ❌ ANTES — asumir que siempre es 'classic'
if (Theme::getDefaultTheme() === 'classic') {
    // logica especifica...
}

// ✅ AHORA — comparar contra el tema activo
$currentTheme = $this->context->shop->theme_name;
if ($currentTheme === 'hummingbird') {
    // Logica para Hummingbird (Bootstrap 5, Twig-ready)
} else {
    // Logica para Classic u otros temas
}

// ❌ ANTES (jQuery)
$(document).ready(function() {
    $('.add-to-cart').on('click', function() {
        $.ajax({
            url: prestashop.urls.base_url + 'module/mymodule/ajax',
            type: 'POST',
            data: { action: 'add', id_product: $(this).data('id') },
            success: function(response) {
                prestashop.emit('updateCart', { reason: response });
            }
        });
    });
});

// ✅ AHORA (Vanilla JS + eventos PS nativos)
document.addEventListener('DOMContentLoaded', () => {
    document.querySelectorAll('[data-ps-action="add-to-cart"]').forEach(btn => {
        btn.addEventListener('click', async (e) => {
            const response = await fetch(
                `${prestashop.urls.base_url}module/mymodule/ajax`,
                {
                    method: 'POST',
                    body: JSON.stringify({ action: 'add', id_product: btn.dataset.psRef }),
                    headers: { 'Content-Type': 'application/json' }
                }
            );
            const data = await response.json();
            prestashop.emit('updateCart', { reason: data });
        });
    });
});

<!-- ❌ PS 8 — selectores CSS -->
<button class="add-to-cart js-add-to-cart" data-id="42">

<!-- ✅ PS 9 — atributos data-ps-* -->
<button data-ps-action="add-to-cart" data-ps-ref="42">

services:
    MyModule\Controller\AdminMyController:
        arguments:
            $formHandler: '@my_module.form.handler'
            $translator: '@translator'
            $entityManager: '@doctrine.orm.entity_manager'
        tags:
            - { name: 'controller.service_arguments' }