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76 lines
1.9 KiB
76 lines
1.9 KiB
import React, { useContext } from 'react';
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import { useSWRInfinite } from 'swr';
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import type { MovieResult } from '../../../server/models/Search';
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import ListView from '../Common/ListView';
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import { LanguageContext } from '../../context/LanguageContext';
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import { defineMessages, FormattedMessage } from 'react-intl';
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import Header from '../Common/Header';
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const messages = defineMessages({
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discovermovies: 'Popular Movies',
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});
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interface SearchResult {
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page: number;
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totalResults: number;
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totalPages: number;
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results: MovieResult[];
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}
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const DiscoverMovies: React.FC = () => {
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const { locale } = useContext(LanguageContext);
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const { data, error, size, setSize } = useSWRInfinite<SearchResult>(
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(pageIndex: number, previousPageData: SearchResult | null) => {
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if (previousPageData && pageIndex + 1 > previousPageData.totalPages) {
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return null;
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}
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return `/api/v1/discover/movies?page=${pageIndex + 1}&language=${locale}`;
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},
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{
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initialSize: 3,
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}
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);
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const isLoadingInitialData = !data && !error;
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const isLoadingMore =
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isLoadingInitialData ||
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(size > 0 && data && typeof data[size - 1] === 'undefined');
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const fetchMore = () => {
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setSize(size + 1);
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};
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if (error) {
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return <div>{error}</div>;
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}
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const titles = data?.reduce(
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(a, v) => [...a, ...v.results],
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[] as MovieResult[]
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);
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const isEmpty = !isLoadingInitialData && titles?.length === 0;
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const isReachingEnd =
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isEmpty || (data && data[data.length - 1]?.results.length < 20);
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return (
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<>
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<Header>
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<FormattedMessage {...messages.discovermovies} />
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</Header>
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<ListView
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items={titles}
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isEmpty={isEmpty}
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isLoading={
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isLoadingInitialData || (isLoadingMore && (titles?.length ?? 0) > 0)
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}
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isReachingEnd={isReachingEnd}
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onScrollBottom={fetchMore}
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/>
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</>
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);
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};
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export default DiscoverMovies;
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