MC-20244: Pricing :: FPT calculation

- initial schema

Author: cpartica

app/code/Magento/WeeeGraphQl/Model/Resolver/FptResolver.php

@@ -0,0 +1,29 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\CatalogGraphQl\Model\Resolver;
+
+use Magento\Framework\GraphQl\Schema\Type\ResolveInfo;
+use Magento\Framework\GraphQl\Config\Element\Field;
+use Magento\Framework\GraphQl\Query\ResolverInterface;
+
+class FptResolver implements ResolverInterface
+{
+    /**
+     * @inheritdoc
+     */
+    public function resolve(
+        Field $field,
+        $context,
+        ResolveInfo $info,
+        array $value = null,
+        array $args = null
+    ) {
+
+        return [];
+    }
+}

app/code/Magento/WeeeGraphQl/etc/schema.graphqls

@@ -2,6 +2,15 @@
 # See COPYING.txt for license details.
 
 enum PriceAdjustmentCodesEnum {
-    WEE
-    WEETAX
+    WEEE
+    WEEETAX
+}
+
+type ProductPrice {
+    fixed_product_taxes: [FixedProductTax] @doc(description: "The multiple FPTs that can be applied to a product price.")  @resolver(class: "Magento\\WeeeGraphQl\\Model\\Resolver\\FptResolver")
+}
+
+type FixedProductTax @doc(description: "A single FPT that can be applied to a product price.") {
+    amount: Money @doc(description: "Amount of the FPT as a money object.")
+    label: String @doc(description: "The label assigned to the FPT to be displayed on the frontend.")
 }