19 lines
635 B
JavaScript
19 lines
635 B
JavaScript
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const CACHE_PREFIX = "KOBOPRICE";
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export const initCache = () => {
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if (!localStorage.getItem(CACHE_PREFIX)) {
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setState({ books: {}, rates: null });
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}
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};
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export const getState = () => JSON.parse(localStorage.getItem(CACHE_PREFIX));
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export const setState = (s) =>
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localStorage.setItem(CACHE_PREFIX, JSON.stringify(s));
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export const getRates = () => getState().rates;
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export const cacheRates = (rates) => setState({ ...getState(), rates });
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export const getBookPrice = (url) => getState().books[url];
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export const cacheBookPrice = (price, url) => {
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const state = getState();
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state.books[url] = price;
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setState(state);
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};
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