commerce_variation_bundle.module

<?php

/**
 * @file
 * Main module file.
 */

use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Render\Element;
use Drupal\commerce_product\Entity\ProductVariationType;
use Drupal\commerce_variation_bundle\Entity\BundleItemType;
use Drupal\commerce_variation_bundle\Entity\VariationBundle;

/**
 * Implements hook_theme().
 */
function commerce_variation_bundle_theme() {
  return [
    'commerce_bundle_item' => [
      'render element' => 'elements',
    ],
  ];
}

/**
 * Prepares variables for bundle item templates.
 *
 * Default template: commerce-bundle-item.html.twig.
 *
 * @param array $variables
 *   An associative array containing:
 *   - elements: An associative array containing rendered fields.
 *   - attributes: HTML attributes for the containing element.
 */
function template_preprocess_commerce_bundle_item(array &$variables) {
  /** @var \Drupal\commerce_variation_bundle\Entity\BundleItemInterface $bundle_item */
  $bundle_item = $variables['elements']['#commerce_bundle_item'];

  $variables['view_mode'] = $variables['elements']['#view_mode'];
  $variables['bundle_item'] = $bundle_item;
  // Helpful $content variable for templates.
  $variables['content'] = [];
  foreach (Element::children($variables['elements']) as $key) {
    $variables['content'][$key] = $variables['elements'][$key];
  }
}

/**
 * Implements hook_entity_bundle_info_alter().
 */
function commerce_variation_bundle_entity_bundle_info_alter(array &$bundles): void {
  $enabled_types = commerce_variation_bundle_enabled_types();

  if (!empty($bundles['commerce_product_variation'])) {
    foreach ($bundles['commerce_product_variation'] as $type => $bundle) {
      if (in_array($type, $enabled_types)) {
        $bundles['commerce_product_variation'][$type]['class'] = VariationBundle::class;
      }
    }
  }
}

/**
 * Get list of product variation types with bundle option enabled.
 *
 * @return array
 *   List of product variation types.
 */
function commerce_variation_bundle_enabled_types(): array {
  $types = [];
  $product_variation_types = ProductVariationType::loadMultiple();
  foreach ($product_variation_types as $product_variation_type) {
    if ($product_variation_type->hasTrait('purchasable_entity_variation_bundle')) {
      $types[] = $product_variation_type->id();
    }
  }

  return $types;
}

/**
 * Implements hook_inline_entity_form_entity_form_alter().
 */
function commerce_variation_bundle_inline_entity_form_entity_form_alter(array &$entity_form, FormStateInterface &$form_state) {
  if ($entity_form['#entity_type'] == 'commerce_bundle_item') {
    $entity_bundle = $entity_form['#bundle'];
    if ($bundle_item_type = BundleItemType::load($entity_bundle)) {
      if ($bundle_item_type->shouldGenerateTitle()) {
        $entity_form['title']['#access'] = FALSE;
      }
    }
  }
}

/**
 * Implements hook_inline_entity_form_table_fields_alter().
 */
function commerce_variation_bundle_inline_entity_form_table_fields_alter(array &$fields, array $context) {
  if ($context['entity_type'] == 'commerce_bundle_item' && $context['field_name'] == 'bundle_items') {
    $fields['quantity'] = [
      'type' => 'field',
      'label' => t('Quantity'),
      'weight' => 10,
    ];
    $fields['price'] = [
      'type' => 'field',
      'label' => t('Price'),
      'weight' => 10,
    ];
  }
}