saleor-dashboard/src/components/Navigator/queries/useCatalogSearch.ts

import gql from "graphql-tag";
import { useState } from "react";

import makeQuery, { UseQueryResult } from "@saleor/hooks/makeQuery";
import useDebounce from "@saleor/hooks/useDebounce";
import { SearchCatalog, SearchCatalogVariables } from "./types/SearchCatalog";

const searchCatalog = gql`
  query SearchCatalog($first: Int!, $query: String!) {
    categories(first: $first, filter: { search: $query }) {
      edges {
        node {
          id
          name
        }
      }
    }

    collections(first: $first, filter: { search: $query }) {
      edges {
        node {
          id
          name
          isPublished
          publicationDate
        }
      }
    }

    products(first: $first, filter: { search: $query }) {
      edges {
        node {
          id
          category {
            id
            name
          }
          name
        }
      }
    }
  }
`;

const useSearchCatalogQuery = makeQuery<SearchCatalog, SearchCatalogVariables>(
  searchCatalog
);

type UseSearchCatalog = [
  UseQueryResult<SearchCatalog, SearchCatalogVariables>,
  (query: string) => void
];
function useSearchCatalog(first: number): UseSearchCatalog {
  const [query, setQuery] = useState("");
  const setQueryDebounced = useDebounce(setQuery);
  const result = useSearchCatalogQuery({
    skip: query === "",
    variables: {
      first,
      query
    }
  });

  return [result, setQueryDebounced];
}
export default useSearchCatalog;