feat: upcoming/trending list views and larger title cards

src/components/Discover/Trending.tsx

@@ -0,0 +1,81 @@
+import React, { useContext } from 'react';
+import { useSWRInfinite } from 'swr';
+import type {
+  MovieResult,
+  TvResult,
+  PersonResult,
+} from '../../../server/models/Search';
+import ListView from '../Common/ListView';
+import { LanguageContext } from '../../context/LanguageContext';
+import { defineMessages, FormattedMessage } from 'react-intl';
+import Header from '../Common/Header';
+
+const messages = defineMessages({
+  trending: 'Trending',
+});
+
+interface SearchResult {
+  page: number;
+  totalResults: number;
+  totalPages: number;
+  results: (MovieResult | TvResult | PersonResult)[];
+}
+
+const Trending: React.FC = () => {
+  const { locale } = useContext(LanguageContext);
+  const { data, error, size, setSize } = useSWRInfinite<SearchResult>(
+    (pageIndex: number, previousPageData: SearchResult | null) => {
+      if (previousPageData && pageIndex + 1 > previousPageData.totalPages) {
+        return null;
+      }
+
+      return `/api/v1/discover/trending?page=${
+        pageIndex + 1
+      }&language=${locale}`;
+    },
+    {
+      initialSize: 3,
+    }
+  );
+
+  const isLoadingInitialData = !data && !error;
+  const isLoadingMore =
+    isLoadingInitialData ||
+    (size > 0 && data && typeof data[size - 1] === 'undefined');
+
+  const fetchMore = () => {
+    setSize(size + 1);
+  };
+
+  if (error) {
+    return <div>{error}</div>;
+  }
+
+  const titles = data?.reduce(
+    (a, v) => [...a, ...v.results],
+    [] as (MovieResult | TvResult | PersonResult)[]
+  );
+
+  const isEmpty = !isLoadingInitialData && titles?.length === 0;
+  const isReachingEnd =
+    isEmpty || (data && data[data.length - 1]?.results.length < 20);
+
+  return (
+    <>
+      <Header>
+        <FormattedMessage {...messages.trending} />
+      </Header>
+      <ListView
+        items={titles}
+        isEmpty={isEmpty}
+        isLoading={
+          isLoadingInitialData || (isLoadingMore && (titles?.length ?? 0) > 0)
+        }
+        isReachingEnd={isReachingEnd}
+        onScrollBottom={fetchMore}
+      />
+    </>
+  );
+};
+
+export default Trending;