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import useSWR from 'swr';
import {
type FetchTopicsListInput,
fetchTopicsList,
} from '../../../services/graphql';
import type { GraphQLConnection, Maybe, WPTopicPreview } from '../../../types';
export type UseTopicsListReturn<
T extends Maybe<GraphQLConnection<WPTopicPreview>>,
> = {
isError: boolean;
isLoading: boolean;
isValidating: boolean;
topics: T extends undefined
? Maybe<GraphQLConnection<WPTopicPreview>>
: GraphQLConnection<WPTopicPreview>;
};
export type UseTopicsListConfig<
T extends Maybe<GraphQLConnection<WPTopicPreview>>,
> = {
input?: FetchTopicsListInput;
fallback?: T;
};
export const useTopicsList = <
T extends Maybe<GraphQLConnection<WPTopicPreview>>,
>(
config?: UseTopicsListConfig<T>
): UseTopicsListReturn<T> => {
const { fallback, input } = config ?? {};
const { data, error, isLoading, isValidating } = useSWR(
input ?? {},
fetchTopicsList,
{ fallbackData: fallback }
);
if (error) console.error(error);
return {
isError: !!error,
isLoading: isLoading && !data,
isValidating,
topics: data,
} as UseTopicsListReturn<T>;
};
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