arch-8.x-1.x-dev/modules/cart/arch_cart.module

<?php
/**
 * @file
 * Cart module file.
 */

use Drupal\arch_product\Entity\ProductType;
use Drupal\Component\Utility\NestedArray;
use Drupal\Core\Entity\Display\EntityViewDisplayInterface;
use Drupal\Core\Entity\EntityInterface;
use Drupal\Core\Template\Attribute;
use Drupal\Core\Url;

/**
 * Implements hook_theme().
 */
function arch_cart_theme($existing, $type, $theme, $path) {
  return [
    'add_to_api_cart' => [
      'variables' => [
        'product' => NULL,
        'text' => NULL,
        'not_available_text' => NULL,
        'attributes' => [],
        'icon_attributes' => [],
        'throbber_attributes' => [],
      ],
    ],
    'api_cart_template' => [
      'variables' => [
        'title' => NULL,
        'grand_total_label' => NULL,
        'cart_link' => NULL,
        'checkout_link' => NULL,
        'settings' => NULL,
      ],
    ],

    'mini_cart' => [
      'variables' => [
        'attributes' => NULL,
        'count' => NULL,
        'url' => NULL,
        'text' => NULL,
        'link_attributes' => NULL,
        'templates' => NULL,
        'settings' => NULL,
      ],
    ],

    'cart_page_totals' => [
      'variables' => [
        'price_format_settings' => [],

        'cart' => NULL,
        'total_price' => NULL,
        'grand_total_price' => NULL,

        'subtotal_price' => NULL,
        'subtotal_vat_price' => NULL,
        'grandtotal_price' => NULL,
        'grandtotal_vat_price' => NULL,

        'hide_subtotal' => NULL,
        'hide_subtotal_vat' => NULL,
        'hide_grandtotal' => NULL,
        'hide_grandtotal_vat' => TRUE,

        'subtotal_label' => NULL,
        'subtotal_vat_label' => NULL,
        'grandtotal_label' => NULL,
        'grandtotal_vat_label' => NULL,

        'attributes' => [],
        'subtotal_attributes' => [],
        'subtotal_vat_attributes' => [],
        'grandtotal_attributes' => [],
        'grandtotal_vat_attributes' => [],

        'subtotal_label_attributes' => [],
        'subtotal_vat_label_attributes' => [],
        'grandtotal_label_attributes' => [],
        'grandtotal_vat_label_attributes' => [],
      ],
    ],
  ];
}

/**
 * Implements hook_preprocess_HOOK().
 */
function template_preprocess_add_to_api_cart(&$variables) {
  /** @var \Drupal\arch_product\Entity\ProductInterface $product */
  $product = &$variables['product'];

  $is_available = $product->availableForSell($variables['user']);
  $has_price = TRUE;
  if (
    !$product->hasPrice()
    || $product->getActivePrice()->getNetPrice() <= 0
  ) {
    $has_price = FALSE;
  }

  $variables['attributes']['class'][] = 'button';
  $variables['attributes']['class'][] = 'form-submit';
  $variables['attributes']['class'][] = 'add-to-api-cart--button';
  $variables['attributes']['data-quantity'] = 1;
  $variables['attributes']['data-product-id'] = $product->id();

  if ($has_price && $is_available) {
    $variables['attributes']['data-enabled'] = TRUE;
  }
  else {
    $variables['attributes']['disabled'] = TRUE;
    $variables['attributes']['data-disabled'] = TRUE;
  }

  $variables['has_price'] = $has_price;
  $variables['available_for_sell'] = $is_available;

  if (!$has_price) {
    $variables['has_price'] = FALSE;
    $variables['attributes']['class'][] = 'add-to-api-cart--button--no-price';
  }

  if (!$is_available) {
    $variables['available_for_sell'] = FALSE;
    $variables['attributes']['class'][] = 'add-to-api-cart--button--not-available-for-sell';
  }

  if (empty($variables['text'])) {
    $variables['text'] = t('Add to cart', [], ['context' => 'arch_cart']);
  }
  if (empty($variables['not_available_text'])) {
    $variables['not_available_text'] = t('Not available', [], ['context' => 'arch_cart']);
  }

  if (empty($variables['icon_attributes'])) {
    $variables['icon_attributes']['class'][] = 'ajax-progress';
    $variables['icon_attributes']['class'][] = 'ajax-progress-throbber';
  }
  if (empty($variables['throbber_attributes'])) {
    $variables['throbber_attributes']['class'][] = 'throbber';
  }

  $variables['attributes'] = new Attribute($variables['attributes']);
  $variables['icon_attributes'] = new Attribute($variables['icon_attributes']);
  $variables['throbber_attributes'] = new Attribute($variables['throbber_attributes']);

  $variables['#attached']['library'][] = 'arch_cart/add-to-api-cart';
  $variables['#attached']['drupalSettings']['arch_api_cart']['api'] = _arch_cart_api_cart_endpoints();

  $variables['#cache']['tags'][] = 'product';
  $variables['#cache']['tags'][] = 'product:' . $product->id();
}

/**
 * Implements hook_preprocess_HOOK().
 */
function template_preprocess_api_cart_template(&$variables) {
  if (empty($variables['title'])) {
    $variables['title'] = t('Cart', [], ['context' => 'arch_cart']);
  }
  if (empty($variables['grand_total_label'])) {
    $variables['grand_total_label'] = t('Grand total', [], ['context' => 'arch_cart']);
  }
  if (empty($variables['remove_title'])) {
    $variables['remove_title'] = t('Remove', [], ['context' => 'arch_cart']);
  }

  if (empty($variables['cart_link'])) {
    $variables['cart_link'] = [
      '#type' => 'link',
      '#url' => Url::fromRoute('arch_cart.content'),
      '#title' => t('Cart', [], ['context' => 'arch_cart']),
      '#attributes' => [
        'class' => [
          'btn',
          'btn-default',
        ],
      ],
    ];
  }

  if (empty($variables['checkout_link'])) {
    $variables['checkout_link'] = [
      '#type' => 'link',
      '#url' => Url::fromRoute('arch_checkout.checkout'),
      '#title' => t('Checkout', [], ['context' => 'arch_cart']),
      '#attributes' => [
        'class' => [
          'btn',
          'btn-default',
        ],
      ],
    ];
  }

  $variables['#attached']['drupalSettings']['arch_api_cart']['templates'] = [
    'cart' => '#arch-cart--api-cart',
    'message' => '#arch-cart--message',
    'item' => '#arch-cart--api-cart--item',
    'itemQuantity' => '#arch-cart--api-cart--item--quantity',
    'itemRemove' => '#arch-cart--api-cart--item--remove',
    'count' => '#arch-cart--api-cart--count',
  ];
}

/**
 * Implements hook_preprocess_HOOK().
 */
function template_preprocess_mini_cart(&$variables) {
  if (!isset($variables['text'])) {
    $variables['text'] = t('Cart', [], ['context' => 'arch_cart']);
  }

  $variables['link_attributes'] = new Attribute($variables['link_attributes']);
  $variables['#attached']['library'][] = 'arch_cart/api-cart';
  $variables['#attached']['drupalSettings']['arch_api_cart']['api'] = _arch_cart_api_cart_endpoints();
  $variables['#attached']['drupalSettings']['arch_api_cart']['settings'] = [
    'theme' => !empty($variables['settings']['theme']) ? $variables['settings']['theme'] : NULL,
    'allow_modify_quantity' => !empty($variables['settings']['allow_modify_quantity']),
    'allow_remove' => !empty($variables['settings']['allow_remove']),
    'show_cart_item_count' => !empty($variables['settings']['show_cart_item_count']),
    'click_event' => !empty($variables['settings']['click_event']) ? $variables['settings']['click_event'] : 'open',
  ];
  $variables['templates']['#settings'] = (array) $variables['settings'];
}

/**
 * Implements hook_preprocess_HOOK().
 */
function template_preprocess_cart_page_totals(&$variables) {
  $labels = [
    'subtotal_label' => t('Subtotal', [], ['context' => 'arch_cart']),
    'subtotal_vat_label' => t('VAT', [], ['context' => 'arch_price']),
    'grandtotal_label' => t('Grand total', [], ['context' => 'arch_cart']),
    'grandtotal_vat_label' => t('Grand total VAT', [], ['context' => 'arch_cart']),
  ];
  foreach ($labels as $variable => $label) {
    if (empty($variables[$variable])) {
      $variables[$variable] = $label;
    }
  }

  /** @var \Drupal\arch_price\Price\PriceFormatterInterface $price_formatter */
  $price_formatter = \Drupal::service('price_formatter');

  /** @var \Drupal\arch_price\Price\PriceInterface $total_cart_price */
  $total_cart_price = $variables['total_price'];
  /** @var \Drupal\arch_price\Price\PriceInterface $grand_total_price */
  $grand_total_price = $variables['grand_total_price'];
  $price_format_settings = $variables['price_format_settings'];

  $variables['subtotal_price'] = $price_formatter->buildNet($total_cart_price, $price_format_settings);
  $variables['subtotal_vat_price'] = $price_formatter->buildVat($total_cart_price, $price_format_settings);
  $variables['grandtotal_price'] = $price_formatter->buildGross($grand_total_price, $price_format_settings);
  $variables['grandtotal_vat_price'] = $price_formatter->buildVat($grand_total_price, $price_format_settings);

  $attributes = [
    'attributes' => [
      'class' => [
        'totals',
      ],
    ],
    'subtotal_attributes' => [
      'class' => [
        'total-item',
        'total-item--subtotal',
        'clearfix',
      ],
    ],
    'subtotal_vat_attributes' => [
      'class' => [
        'total-item',
        'total-item--subtotal-vat',
        'clearfix',
      ],
    ],
    'grandtotal_attributes' => [
      'class' => [
        'total-item',
        'total-item--grandtotal',
        'clearfix',
      ],
    ],
    'grandtotal_vat_attributes' => [
      'class' => [
        'total-item',
        'total-item--grandtotal-vat',
        'clearfix',
      ],
    ],

    'subtotal_label_attributes' => [
      'class' => [
        'total-item-label',
        'total-item-label--subtotal',
        'clearfix',
      ],
    ],
    'subtotal_vat_label_attributes' => [
      'class' => [
        'total-item-label',
        'total-item-label--subtotal-vat',
        'clearfix',
      ],
    ],
    'grandtotal_label_attributes' => [
      'class' => [
        'total-item-label',
        'total-item-label--grandtotal',
        'clearfix',
      ],
    ],
    'grandtotal_vat_label_attributes' => [
      'class' => [
        'total-item-label',
        'total-item-label--grandtotal-vat',
        'clearfix',
      ],
    ],
  ];
  foreach ($attributes as $variable => $defaults) {
    $attribute = NestedArray::mergeDeep($defaults, $variables[$variable]);
    $variables[$variable] = new Attribute($attribute);
  }
}

/**
 * Get list of API endpoints.
 *
 * @return array
 *   Endpoints.
 */
function _arch_cart_api_cart_endpoints() {
  $endpoints = [];

  $cart = Url::fromRoute('arch_cart.api.cart');
  $endpoints['cart'] = $cart->toString();

  $cart_add = Url::fromRoute('arch_cart.api.cart_add');
  $endpoints['add'] = $cart_add->toString();

  $quantity = Url::fromRoute('arch_cart.api.cart_quantity');
  $endpoints['quantity'] = $quantity->toString();

  $remove = Url::fromRoute('arch_cart.api.cart_remove');
  $endpoints['remove'] = $remove->toString();

  return $endpoints;
}

/**
 * Implements hook_entity_extra_field_info().
 */
function arch_cart_entity_extra_field_info() {
  $extra = [];

  /** @var \Drupal\arch_product\Entity\ProductTypeInterface $bundle */
  foreach (ProductType::loadMultiple() as $bundle) {
    $extra['product'][$bundle->id()]['display']['add_to_api_cart'] = [
      'label' => t('Cart API: Add to cart', [], ['context' => 'arch_cart']),
      'visible' => FALSE,
    ];
  }

  return $extra;
}

/**
 * Implements hook_entity_view().
 */
function arch_cart_entity_view(array &$build, EntityInterface $entity, EntityViewDisplayInterface $display, $view_mode) {
  if ($entity->getEntityTypeId() !== 'product') {
    return;
  }

  /** @var \Drupal\arch_product\Entity\ProductInterface $entity */
  if ($display->getComponent('add_to_api_cart')) {
    $build['add_to_api_cart'] = [
      '#theme' => 'add_to_api_cart',
      '#product' => $entity,
    ];
  }
}