Added framework folder

framework/bigcommerce/wishlist/use-wishlist.tsx

@@ -0,0 +1,76 @@
+import { HookFetcher } from '@commerce/utils/types'
+import { SwrOptions } from '@commerce/utils/use-data'
+import useCommerceWishlist from '@commerce/wishlist/use-wishlist'
+import type { Wishlist } from '../api/wishlist'
+import useCustomer from '../use-customer'
+
+const defaultOpts = {
+  url: '/api/bigcommerce/wishlist',
+  method: 'GET',
+}
+
+export type { Wishlist }
+
+export interface UseWishlistOptions {
+  includeProducts?: boolean
+}
+
+export interface UseWishlistInput extends UseWishlistOptions {
+  customerId?: number
+}
+
+export const fetcher: HookFetcher<Wishlist | null, UseWishlistInput> = (
+  options,
+  { customerId, includeProducts },
+  fetch
+) => {
+  if (!customerId) return null
+
+  // Use a dummy base as we only care about the relative path
+  const url = new URL(options?.url ?? defaultOpts.url, 'http://a')
+
+  if (includeProducts) url.searchParams.set('products', '1')
+
+  return fetch({
+    url: url.pathname + url.search,
+    method: options?.method ?? defaultOpts.method,
+  })
+}
+
+export function extendHook(
+  customFetcher: typeof fetcher,
+  swrOptions?: SwrOptions<Wishlist | null, UseWishlistInput>
+) {
+  const useWishlist = ({ includeProducts }: UseWishlistOptions = {}) => {
+    const { data: customer } = useCustomer()
+    const response = useCommerceWishlist(
+      defaultOpts,
+      [
+        ['customerId', customer?.entityId],
+        ['includeProducts', includeProducts],
+      ],
+      customFetcher,
+      {
+        revalidateOnFocus: false,
+        ...swrOptions,
+      }
+    )
+
+    // Uses a getter to only calculate the prop when required
+    // response.data is also a getter and it's better to not trigger it early
+    Object.defineProperty(response, 'isEmpty', {
+      get() {
+        return (response.data?.items?.length || 0) <= 0
+      },
+      set: (x) => x,
+    })
+
+    return response
+  }
+
+  useWishlist.extend = extendHook
+
+  return useWishlist
+}
+
+export default extendHook(fetcher)