Update Swell Provider (#359)

* fix update cart item

* update types

* update checkout

* update get-page, cleanup types

* revert change to incorrect file

* cleanup

Co-authored-by: Greg Hoskin <greghoskin@Gregs-MacBook-Pro.local>

framework/swell/api/operations/get-product.ts

@@ -0,0 +1,33 @@
+import { normalizeProduct } from '../../utils'
+
+import { Product } from '@commerce/types/product'
+import { OperationContext } from '@commerce/api/operations'
+import { Provider, SwellConfig } from '../'
+
+export default function getProductOperation({
+  commerce,
+}: OperationContext<Provider>) {
+  async function getProduct({
+    variables,
+    config: cfg,
+  }: {
+    query?: string
+    variables: { slug: string }
+    config?: Partial<SwellConfig>
+    preview?: boolean
+  }): Promise<Product | {} | any> {
+    const config = commerce.getConfig(cfg)
+
+    const product = await config.fetch('products', 'get', [variables.slug])
+
+    if (product && product.variants) {
+      product.variants = product.variants?.results
+    }
+
+    return {
+      product: product ? normalizeProduct(product) : null,
+    }
+  }
+
+  return getProduct
+}