refactor category and brand filtering logic

Signed-off-by: Loan Laux <loan@outgrow.io>

framework/reactioncommerce/product/use-search.tsx

@@ -3,34 +3,31 @@ import useSearch, { UseSearch } from '@commerce/product/use-search'
 
 export default useSearch as UseSearch<typeof handler>
 
-export type SearchProductsInput = {
-  search?: string
-  categoryId?: number | string
-  brandId?: number
-  sort?: string
-  locale?: string
-}
-
 export const handler: SWRHook<any> = {
   fetchOptions: {
     url: '/api/catalog/products',
     method: 'GET',
   },
-  fetcher({ input: { search, categoryId, brandId, sort }, options, fetch }) {
+  async fetcher({ input: { search, categoryId, brandId, sort }, options, fetch }) {
     // Use a dummy base as we only care about the relative path
     const url = new URL(options.url!, 'http://a')
 
     if (search) url.searchParams.set('search', search)
-    if (Number.isInteger(categoryId))
+    if (categoryId)
       url.searchParams.set('categoryId', String(categoryId))
-    if (Number.isInteger(brandId))
+    if (brandId)
       url.searchParams.set('brandId', String(brandId))
     if (sort) url.searchParams.set('sort', sort)
 
-    return fetch({
+    const results = await fetch({
       url: url.pathname + url.search,
       method: options.method,
     })
+
+    return {
+      products: results?.products ?? [],
+      found: results?.products?.length > 0 ?? false,
+    }
   },
   useHook:
     ({ useData }) =>