Updated Saleor Provider (#356)

* Initial work, copied from the Shopify provider

* Added basis setup and type generation for the products queries

* refactor: adjust the types

* task: relax the Node.js constraint

* fix: page/product properties

* disable unknown fields

* mention Saleor in the README

* setup debugging for Next.js

* Check nextjs-commerce bug if no images are added for a product

* fix: client/server pecularities for env visibility

Must prefix with `NEXT_PUBLIC_` so that the API URL is
visible on the client

* re: make search work with Saleor API (WIP)

* task: update deps

* task: move to Webpack 5.x

* saleor: initial cart integration

* update deps

* saleor: shall the cart appear!

* task: remove deprecated packages

* saleor: adding/removing from the cart

* saleor: preliminary signup process

* saleor: fix the prices in the cart

* update deps

* update deps

* Added the options for a variant to the product page

* Mapped options to variants

* Mapped options to variants

* saleor: refine the auth process

* saleor: remove unused code

* saleor: handle customer find via refresh

temporary solution

* saleor: update deps

* saleor: fix the session handling

* saleor: fix the variants

* saleor: simplify the naming for GraphQL statements

* saleor: fix the type for collection

* saleor: arrange the error codes

* saleor: integrate collections

* saleor: fix product sorting

* saleor: set cookie location

* saleor: update the schema

* saleor: attach checkout to customer

* saleor: fix the checkout flow

* saleor: unify GraphQL naming approach

* task: update deps

* Add the env variables for saleor to the template

* task: prettier

* saleor: stub API for build/typescript compilation

thanks @cond0r

* task: temporarily disable for the `build`

* saleor: refactor GraphQL queries

* saleor: adjust the config

* task: update dependencies

* revert: Next.js to `10.0.9`

* saleor: fix the checkout fetch query

* task: update dependencies

* saleor: adapt for displaying featured products

* saleor: update the provider structure

* saleor: make the home page representable

* feature/cart: display the variant name (cond)

Co-authored-by: Patryk Zawadzki <patrys@room-303.com>
Co-authored-by: royderks <10717410+royderks@users.noreply.github.com>

framework/saleor/wishlist/use-add-item.tsx

@@ -0,0 +1,13 @@
+import { useCallback } from 'react'
+
+export function emptyHook() {
+  const useEmptyHook = async (options = {}) => {
+    return useCallback(async function () {
+      return Promise.resolve()
+    }, [])
+  }
+
+  return useEmptyHook
+}
+
+export default emptyHook

framework/saleor/wishlist/use-remove-item.tsx

@@ -0,0 +1,17 @@
+import { useCallback } from 'react'
+
+type Options = {
+  includeProducts?: boolean
+}
+
+export function emptyHook(options?: Options) {
+  const useEmptyHook = async ({ id }: { id: string | number }) => {
+    return useCallback(async function () {
+      return Promise.resolve()
+    }, [])
+  }
+
+  return useEmptyHook
+}
+
+export default emptyHook

framework/saleor/wishlist/use-wishlist.tsx

@@ -0,0 +1,46 @@
+// TODO: replace this hook and other wishlist hooks with a handler, or remove them if
+// Saleor doesn't have a wishlist
+
+import { HookFetcher } from '@commerce/utils/types'
+import { Product } from '../schema'
+
+const defaultOpts = {}
+
+export type Wishlist = {
+  items: [
+    {
+      product_id: number
+      variant_id: number
+      id: number
+      product: Product
+    }
+  ]
+}
+
+export interface UseWishlistOptions {
+  includeProducts?: boolean
+}
+
+export interface UseWishlistInput extends UseWishlistOptions {
+  customerId?: number
+}
+
+export const fetcher: HookFetcher<Wishlist | null, UseWishlistInput> = () => {
+  return null
+}
+
+export function extendHook(
+  customFetcher: typeof fetcher,
+  // swrOptions?: SwrOptions<Wishlist | null, UseWishlistInput>
+  swrOptions?: any
+) {
+  const useWishlist = ({ includeProducts }: UseWishlistOptions = {}) => {
+    return { data: null }
+  }
+
+  useWishlist.extend = extendHook
+
+  return useWishlist
+}
+
+export default extendHook(fetcher)