27 lines
925 B
TypeScript
27 lines
925 B
TypeScript
// Copyright 2017-2020 @polkadot/react-hooks authors & contributors
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// This software may be modified and distributed under the terms
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// of the Apache-2.0 license. See the LICENSE file for details.
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import { useCallback, useState } from 'react';
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import useCacheKey from './useCacheKey';
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// hook for favorites with local storage
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export default function useFavorites (storageKeyBase: string): [string[], (address: string) => void] {
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const [getCache, setCache] = useCacheKey<string[]>(storageKeyBase);
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const [favorites, setFavorites] = useState<string[]>(getCache() || []);
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const toggleFavorite = useCallback(
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(address: string): void => setFavorites(
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(favorites: string[]) => setCache(
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favorites.includes(address)
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? favorites.filter((accountId): boolean => address !== accountId)
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: [...favorites, address]
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)
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),
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[setCache]
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);
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return [favorites, toggleFavorite];
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}
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