корзина кеш

app/Repositories/ProductRepository.php

@@ -211,6 +211,145 @@ final class ProductRepository extends BaseRepository
         return $statement->fetchAll();
     }
 
+    /**
+     * @param array<int, array<string, mixed>> $items
+     * @return array<int, array<string, mixed>>
+     */
+    public function cartSnapshots(array $items): array
+    {
+        $result = [];
+
+        foreach ($items as $item) {
+            $key = (string) ($item['key'] ?? '');
+            $productId = (int) ($item['productId'] ?? 0);
+            $variantId = (int) ($item['variantId'] ?? 0);
+            $desiredPackageQuantity = (float) ($item['packageQuantity'] ?? 0);
+
+            if ($key === '' || $productId <= 0) {
+                continue;
+            }
+
+            $variantJoin = $variantId > 0
+                ? 'v.product_id = p.id AND v.id = :variant_id'
+                : 'v.id = (
+                    SELECT pv.id
+                    FROM product_variants pv
+                    WHERE pv.product_id = p.id
+                    ORDER BY pv.is_default DESC, pv.sort_order, pv.id
+                    LIMIT 1
+                )';
+
+            $statement = $this->pdo()->prepare(
+                'SELECT
+                    p.id AS product_id,
+                    p.name,
+                    p.slug,
+                    p.main_image_path,
+                    p.is_published AS product_is_published,
+                    p.is_available AS product_is_available,
+                    v.id AS variant_id,
+                    v.name AS variant_name,
+                    v.unit,
+                    v.package_quantity,
+                    v.price_per_unit,
+                    v.package_price,
+                    v.is_published AS variant_is_published,
+                    v.is_available AS variant_is_available
+                 FROM products p
+                 LEFT JOIN product_variants v ON ' . $variantJoin . '
+                 WHERE p.id = :product_id
+                 LIMIT 1'
+            );
+            $params = ['product_id' => $productId];
+            if ($variantId > 0) {
+                $params['variant_id'] = $variantId;
+            }
+            $statement->execute($params);
+            $row = $statement->fetch();
+
+            if (!$row) {
+                $result[] = [
+                    'key' => $key,
+                    'isAvailable' => false,
+                    'reason' => 'Товар больше не найден в каталоге.',
+                ];
+                continue;
+            }
+
+            if (empty($row['variant_id'])) {
+                $fallbackStatement = $this->pdo()->prepare(
+                    'SELECT
+                        p.id AS product_id,
+                        p.name,
+                        p.slug,
+                        p.main_image_path,
+                        p.is_published AS product_is_published,
+                        p.is_available AS product_is_available,
+                        v.id AS variant_id,
+                        v.name AS variant_name,
+                        v.unit,
+                        v.package_quantity,
+                        v.price_per_unit,
+                        v.package_price,
+                        v.is_published AS variant_is_published,
+                        v.is_available AS variant_is_available
+                     FROM products p
+                     INNER JOIN product_variants v ON v.product_id = p.id
+                     WHERE p.id = :product_id
+                     ORDER BY
+                        (v.is_published = 1 AND v.is_available = 1 AND v.package_price > 0) DESC,
+                        CASE WHEN :package_quantity_check > 0 THEN ABS(v.package_quantity - :package_quantity) ELSE 0 END,
+                        v.is_default DESC,
+                        v.sort_order,
+                        v.id
+                     LIMIT 1'
+                );
+                $fallbackStatement->execute([
+                    'product_id' => $productId,
+                    'package_quantity' => $desiredPackageQuantity,
+                    'package_quantity_check' => $desiredPackageQuantity,
+                ]);
+                $fallbackRow = $fallbackStatement->fetch();
+
+                if ($fallbackRow) {
+                    $row = $fallbackRow;
+                }
+            }
+
+            $productIsAvailable = (int) ($row['product_is_published'] ?? 0) === 1
+                && (int) ($row['product_is_available'] ?? 0) === 1;
+            $variantIsAvailable = !empty($row['variant_id'])
+                && (int) ($row['variant_is_published'] ?? 0) === 1
+                && (int) ($row['variant_is_available'] ?? 0) === 1
+                && (float) ($row['package_price'] ?? 0) > 0;
+
+            $reason = '';
+            if (!$productIsAvailable) {
+                $reason = 'Товар сейчас не опубликован или отсутствует в наличии.';
+            } elseif (!$variantIsAvailable) {
+                $reason = 'Выбранная фасовка сейчас недоступна.';
+            }
+
+            $result[] = [
+                'key' => $key,
+                'productId' => (int) $row['product_id'],
+                'variantId' => !empty($row['variant_id']) ? (int) $row['variant_id'] : $variantId,
+                'name' => (string) ($row['name'] ?? ''),
+                'slug' => (string) ($row['slug'] ?? ''),
+                'image' => (string) ($row['main_image_path'] ?? ''),
+                'variantName' => (string) ($row['variant_name'] ?? 'Фасовка'),
+                'unit' => (string) ($row['unit'] ?? ''),
+                'packageQuantity' => (float) ($row['package_quantity'] ?? 0),
+                'baseUnitPrice' => (float) ($row['price_per_unit'] ?? 0),
+                'basePackagePrice' => (float) ($row['package_price'] ?? 0),
+                'isAvailable' => $productIsAvailable && $variantIsAvailable,
+                'reason' => $reason,
+            ];
+        }
+
+        return $result;
+    }
+
     /**
      * @return array<int, array<string, mixed>>
      */