From 2a6df70f40c78d63745128e1ed312e262751e5fc Mon Sep 17 00:00:00 2001
From: Christiaan Scheermeijer <christiaan@videodock.com>
Date: Wed, 16 Jun 2021 11:26:28 +0200
Subject: [PATCH] feat(project): add structured data for movie and series
 screens

---
 src/components/Layout/Layout.tsx |  1 -
 src/screens/Movie/Movie.tsx      |  5 +++-
 src/screens/Series/Series.tsx    |  3 ++
 src/utils/datetime.ts            | 24 ++++++++++++++++
 src/utils/structuredData.ts      | 49 ++++++++++++++++++++++++++++++++
 types/playlist.d.ts              |  2 ++
 6 files changed, 82 insertions(+), 2 deletions(-)
 create mode 100644 src/utils/datetime.ts
 create mode 100644 src/utils/structuredData.ts

diff --git a/src/components/Layout/Layout.tsx b/src/components/Layout/Layout.tsx
index 0eea79c1a..50e9e33f3 100644
--- a/src/components/Layout/Layout.tsx
+++ b/src/components/Layout/Layout.tsx
@@ -36,7 +36,6 @@ const Layout: FC<LayoutProps> = ({ children }) => {
         <meta name="description" content={description} />
         <meta property="og:description" content={description} />
         <meta property="og:title" content={siteName} />
-        <meta property="og:type" content="video.other" />
         {banner && <meta property="og:image" content={banner?.replace(/^https:/, 'http:')} />}
         {banner && <meta property="og:image:secure_url" content={banner?.replace(/^http:/, 'https:')} />}
         <meta name="twitter:title" content={siteName} />
diff --git a/src/screens/Movie/Movie.tsx b/src/screens/Movie/Movie.tsx
index b88a98c52..061d3c71f 100644
--- a/src/screens/Movie/Movie.tsx
+++ b/src/screens/Movie/Movie.tsx
@@ -6,11 +6,12 @@ import { Helmet } from 'react-helmet';
 import { useFavorites } from '../../stores/FavoritesStore';
 import { ConfigContext } from '../../providers/ConfigProvider';
 import useBlurImageUpdater from '../../hooks/useBlurImageUpdater';
-import { cardUrl, videoUrl } from '../../utils/formatting';
+import { cardUrl, movieURL, videoUrl } from '../../utils/formatting';
 import type { PlaylistItem } from '../../../types/playlist';
 import VideoComponent from '../../components/Video/Video';
 import Shelf from '../../containers/Shelf/Shelf';
 import useMedia from '../../hooks/useMedia';
+import { generateMovieJSONLD } from '../../utils/structuredData';
 
 type MovieRouteParams = {
   id: string;
@@ -49,6 +50,7 @@ const Movie = (
     <React.Fragment>
       <Helmet>
         <title>{item.title} - {config.siteName}</title>
+        {item ? <link rel="canonical" href={`${window.location.origin}${movieURL(item)}`} /> : null}
         <meta name="description" content={item.description} />
         <meta property="og:description" content={item.description} />
         <meta property="og:title" content={`${item.title} - ${config.siteName}`} />
@@ -66,6 +68,7 @@ const Movie = (
         <meta property="og:video:width" content="1280" />
         <meta property="og:video:height" content="720" />
         {item.tags.split(',').map(tag => <meta property="og:video:tag" content={tag} key={tag} />)}
+        {item ? <script type="application/ld+json">{generateMovieJSONLD(item)}</script> : null}
       </Helmet>
       <VideoComponent
         item={item}
diff --git a/src/screens/Series/Series.tsx b/src/screens/Series/Series.tsx
index 66e1f8306..425752326 100644
--- a/src/screens/Series/Series.tsx
+++ b/src/screens/Series/Series.tsx
@@ -12,6 +12,7 @@ import VideoComponent from '../../components/Video/Video';
 import Shelf from '../../containers/Shelf/Shelf';
 import useMedia from '../../hooks/useMedia';
 import usePlaylist from '../../hooks/usePlaylist';
+import { generateEpisodeJSONLD } from '../../utils/structuredData';
 
 type SeriesRouteParams = {
   id: string;
@@ -60,6 +61,7 @@ const Series = (
     <React.Fragment>
       <Helmet>
         <title>{item.title} - {config.siteName}</title>
+        {seriesPlaylist && item ? <link rel="canonical" href={`${window.location.origin}${episodeURL(seriesPlaylist, item.mediaid)}`} /> : null}
         <meta name="description" content={item.description} />
         <meta property="og:description" content={item.description} />
         <meta property="og:title" content={`${item.title} - ${config.siteName}`} />
@@ -77,6 +79,7 @@ const Series = (
         <meta property="og:video:width" content="1280" />
         <meta property="og:video:height" content="720" />
         {item.tags.split(',').map(tag => <meta property="og:video:tag" content={tag} key={tag} />)}
+        {seriesPlaylist && item ? <script type="application/ld+json">{generateEpisodeJSONLD(seriesPlaylist, item)}</script> : null}
       </Helmet>
       <VideoComponent
         item={item}
diff --git a/src/utils/datetime.ts b/src/utils/datetime.ts
new file mode 100644
index 000000000..006da4b33
--- /dev/null
+++ b/src/utils/datetime.ts
@@ -0,0 +1,24 @@
+/**
+ * Seconds to ISO8601 duration or date string
+ */
+export function secondsToISO8601 (input: number, timeOnly: boolean = false): string {
+  if (!input) {
+    return '';
+  }
+
+  const date = new Date(input ? input * 1000 : 0);
+  const hours = date.getUTCHours();
+  const minutes = date.getUTCMinutes();
+  const seconds = date.getUTCSeconds();
+
+  if (!timeOnly) {
+    return date.toISOString();
+  }
+
+  let isoString = 'PT';
+  if (hours > 0) isoString += hours + 'H';
+  if (minutes > 0) isoString += minutes + 'M';
+  if (seconds > 0) isoString += seconds + 'S';
+
+  return isoString;
+}
diff --git a/src/utils/structuredData.ts b/src/utils/structuredData.ts
new file mode 100644
index 000000000..79af7c326
--- /dev/null
+++ b/src/utils/structuredData.ts
@@ -0,0 +1,49 @@
+import type { Playlist, PlaylistItem } from '../../types/playlist';
+
+import { episodeURL, movieURL } from './formatting';
+import { secondsToISO8601 } from './datetime';
+
+export const generateSeriesMetadata = (seriesPlaylist: Playlist) => {
+  const seriesCanonical = `${window.location.origin}/${episodeURL(seriesPlaylist)}`;
+
+  return {
+    '@type': 'TVSeries',
+    '@id': seriesCanonical,
+    name: seriesPlaylist.title,
+    numberOfEpisodes: seriesPlaylist.playlist.length,
+    numberOfSeasons: seriesPlaylist.playlist.reduce(function (list, playlistItem) {
+      return !playlistItem.seasonNumber || list.includes(playlistItem.seasonNumber) ? list : list.concat(playlistItem.seasonNumber);
+    }, [] as string[]).length
+  };
+}
+
+export const generateEpisodeJSONLD = (seriesPlaylist: Playlist, episode: PlaylistItem) => {
+  const episodeCanonical = `${window.location.origin}/${episodeURL(seriesPlaylist, episode.mediaid)}`;
+  const seriesMetadata = generateSeriesMetadata(seriesPlaylist);
+
+  return JSON.stringify({
+    '@context': 'http://schema.org/',
+    '@type': 'TVEpisode',
+    '@id': episodeCanonical,
+    episodeNumber: episode.episodeNumber,
+    seasonNumber: episode.seasonNumber,
+    name: episode.title,
+    uploadDate: secondsToISO8601(episode.pubdate),
+    partOfSeries: seriesMetadata,
+  });
+}
+
+export const generateMovieJSONLD = (item: PlaylistItem) => {
+  const movieCanonical = `${window.location.origin}/${movieURL(item)}`;
+
+  return JSON.stringify({
+    '@context': 'http://schema.org/',
+    '@type': 'VideoObject',
+    '@id': movieCanonical,
+    name: item.title,
+    description: item.description,
+    duration: secondsToISO8601(item.duration, true),
+    thumbnailUrl: item.image,
+    uploadDate: secondsToISO8601(item.pubdate)
+  });
+}
diff --git a/types/playlist.d.ts b/types/playlist.d.ts
index e82e38f08..362281b5c 100644
--- a/types/playlist.d.ts
+++ b/types/playlist.d.ts
@@ -28,6 +28,8 @@ export type PlaylistItem = {
   rating: string;
   sources: Source[];
   seriesId?: string;
+  episodeNumber?: string;
+  seasonNumber?: string;
   tags: string;
   title: string;
   tracks: Track[];