feat: add discover customization (#3182)

src/components/Discover/PlexWatchlistSlider/index.tsx

@@ -0,0 +1,79 @@
+import Slider from '@app/components/Slider';
+import TmdbTitleCard from '@app/components/TitleCard/TmdbTitleCard';
+import { UserType, useUser } from '@app/hooks/useUser';
+import { ArrowCircleRightIcon } from '@heroicons/react/outline';
+import type { WatchlistItem } from '@server/interfaces/api/discoverInterfaces';
+import Link from 'next/link';
+import { defineMessages, useIntl } from 'react-intl';
+import useSWR from 'swr';
+
+const messages = defineMessages({
+  plexwatchlist: 'Your Plex Watchlist',
+  emptywatchlist:
+    'Media added to your <PlexWatchlistSupportLink>Plex Watchlist</PlexWatchlistSupportLink> will appear here.',
+});
+
+const PlexWatchlistSlider = () => {
+  const intl = useIntl();
+  const { user } = useUser();
+
+  const { data: watchlistItems, error: watchlistError } = useSWR<{
+    page: number;
+    totalPages: number;
+    totalResults: number;
+    results: WatchlistItem[];
+  }>(user?.userType === UserType.PLEX ? '/api/v1/discover/watchlist' : null, {
+    revalidateOnMount: true,
+  });
+
+  if (
+    user?.userType !== UserType.PLEX ||
+    (watchlistItems &&
+      watchlistItems.results.length === 0 &&
+      !user?.settings?.watchlistSyncMovies &&
+      !user?.settings?.watchlistSyncTv) ||
+    watchlistError
+  ) {
+    return null;
+  }
+
+  return (
+    <>
+      <div className="slider-header">
+        <Link href="/discover/watchlist">
+          <a className="slider-title">
+            <span>{intl.formatMessage(messages.plexwatchlist)}</span>
+            <ArrowCircleRightIcon />
+          </a>
+        </Link>
+      </div>
+      <Slider
+        sliderKey="watchlist"
+        isLoading={!watchlistItems}
+        isEmpty={!!watchlistItems && watchlistItems.results.length === 0}
+        emptyMessage={intl.formatMessage(messages.emptywatchlist, {
+          PlexWatchlistSupportLink: (msg: React.ReactNode) => (
+            <a
+              href="https://support.plex.tv/articles/universal-watchlist/"
+              className="text-white transition duration-300 hover:underline"
+              target="_blank"
+              rel="noreferrer"
+            >
+              {msg}
+            </a>
+          ),
+        })}
+        items={watchlistItems?.results.map((item) => (
+          <TmdbTitleCard
+            id={item.tmdbId}
+            key={`watchlist-slider-item-${item.ratingKey}`}
+            tmdbId={item.tmdbId}
+            type={item.mediaType}
+          />
+        ))}
+      />
+    </>
+  );
+};
+
+export default PlexWatchlistSlider;