initial provider (#2)

framework/medusa/utils/normalizers/normalize-cart.ts

@@ -0,0 +1,77 @@
+import { Cart, LineItem, ProductVariant } from '../../types/cart'
+import {
+  Cart as MedusaCart,
+  Discount as MedusaDiscount,
+  LineItem as MedusaLineItem,
+  ProductVariant as MedusaProductVariant,
+} from '@medusajs/medusa-js/lib/types'
+import { Discount } from '@commerce/types/common'
+
+export function normalizeProductVariant(
+  { id, title: name, sku }: MedusaProductVariant,
+  price: number,
+  thumbnail: string
+): ProductVariant {
+  return {
+    id,
+    name,
+    price: price / 100,
+    sku: sku || id,
+    listPrice: price / 100,
+    requiresShipping: true,
+    image: { url: thumbnail, altText: name },
+  }
+}
+
+export function normalizeLineItem({
+  id,
+  title: name,
+  variant,
+  quantity,
+  unit_price,
+  thumbnail,
+}: MedusaLineItem): LineItem {
+  return {
+    id,
+    name,
+    path: variant?.product.handle || name.replace(' ', '-'),
+    variant: normalizeProductVariant(variant!, unit_price, thumbnail!),
+    variantId: variant!.id,
+    productId: variant!.product.id,
+    discounts: [],
+    quantity,
+  }
+}
+
+export function normalizeDiscount(discount: MedusaDiscount): Discount {
+  return {
+    value: discount.rule.value,
+  }
+}
+
+export function normalizeCart({
+  id,
+  email,
+  created_at,
+  region,
+  items,
+  subtotal,
+  total,
+  tax_total,
+  customer_id,
+  discounts,
+}: MedusaCart): Cart {
+  return {
+    id,
+    email,
+    customerId: customer_id,
+    discounts: discounts.map((discount) => normalizeDiscount(discount)),
+    createdAt: `${created_at}`,
+    currency: { code: region.currency_code },
+    lineItems: items.map((item) => normalizeLineItem(item)),
+    subtotalPrice: subtotal / 100,
+    totalPrice: total / 100,
+    taxesIncluded: tax_total > 0,
+    lineItemsSubtotalPrice: subtotal / 100,
+  }
+}