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import { useEffect, useMemo } from 'react';
import { useDispatch, useSelector } from 'calypso/state';
import { requestUserRecommendedBlogs } from 'calypso/state/reader/lists/actions';
import {
getUserRecommendedBlogs,
hasRequestedUserRecommendedBlogs,
isRequestingUserRecommendedBlogs,
} from 'calypso/state/reader/lists/selectors';
interface QueryOptions {
enabled?: boolean;
}
interface APIFeedRecommendation {
meta: {
data: {
site?: {
name: string;
feed_URL: string;
ID: string;
icon: {
img?: string;
ico?: string;
};
description: string;
};
feed?: {
image: string;
name: string;
feed_URL: string;
blog_ID: string;
};
};
};
feed_ID: string;
}
export interface FeedRecommendation {
ID: string;
image?: string;
name?: string;
feedUrl?: string;
siteId?: string;
feedId: string;
}
// A blog from a list may have either a site or feed object, and the data is structured in different
// property names. This function normalizes the data to a consistent format.
const normalizeFeedRecommendation = ( blog: APIFeedRecommendation ): FeedRecommendation => {
if ( blog.meta?.data?.site ) {
const { name, feed_URL: feedUrl, ID: siteId, icon } = blog.meta.data.site;
return {
ID: blog.meta.data.site.ID,
image: icon?.img || icon?.ico,
name,
feedUrl,
siteId,
feedId: blog.feed_ID,
};
}
const { image, name, feed_URL: feedUrl, blog_ID: siteId } = blog.meta?.data?.feed || {};
return {
ID: blog.meta?.data?.feed?.blog_ID || '',
image,
name,
feedUrl,
siteId,
feedId: blog.feed_ID,
};
};
/**
* Hook to fetch and manage user recommended blogs.
* @param userLogin - The user login to fetch recommendations for
* @param options - Optional configuration
* @param options.enabled - Whether the query should be enabled (default: true)
* @returns Object containing loading state, data, and success status
*/
export const useFeedRecommendationsQuery = ( userLogin?: string, options?: QueryOptions ) => {
const { enabled = true } = options || {};
const dispatch = useDispatch();
const hasRequested = useSelector( ( state ) =>
hasRequestedUserRecommendedBlogs( state, userLogin || '' )
);
const isRequesting = useSelector( ( state ) =>
isRequestingUserRecommendedBlogs( state, userLogin || '' )
);
const recommendedBlogs = useSelector( ( state ) =>
getUserRecommendedBlogs( state, userLogin || '' )
);
useEffect( () => {
if ( ! recommendedBlogs && userLogin && ! hasRequested && enabled ) {
dispatch( requestUserRecommendedBlogs( userLogin ) );
}
}, [ userLogin, recommendedBlogs, dispatch, hasRequested, enabled ] );
const feedRecommendations = useMemo< FeedRecommendation[] >(
() => recommendedBlogs?.map?.( normalizeFeedRecommendation ),
[ recommendedBlogs ]
);
return {
isLoading: isRequesting,
data: feedRecommendations ?? [],
isSuccess: ! isRequesting && hasRequested,
};
};
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