Add better parsing for youtube embed links (#534)

### Description

Replace the previous hacky regex method with a slightly better link
parser. Add support for timestamps, playlists and youtube music links,
tracking info is still stripped and embeds use the timestamp. Previously
none of these features were supported, this might also be slightly more
robust.

#### Type of change

- [ ] Bug fix (non-breaking change which fixes an issue)
- [X] New feature (non-breaking change which adds functionality)
- [ ] Breaking change (fix or feature that would cause existing
functionality to not work as expected)
- [ ] This change requires a documentation update

### Checklist:

- [ ] My code follows the style guidelines of this project
- [X] I have performed a self-review of my own code
- [ ] I have commented my code, particularly in hard-to-understand areas
- [ ] I have made corresponding changes to the documentation
- [X] My changes generate no new warnings

### AI disclosure:

- [ ] Partially AI assisted (clarify which code was AI assisted and
briefly explain what it does).
- [ ] Fully AI generated (explain what all the generated code does in
moderate detail).

Author: 7w1

.changeset/improve_youtube_embeds.md

@@ -0,0 +1,5 @@
+---
+default: minor
+---
+
+# Add support for timestamps, playlists and youtube music links for the youtube embeds

src/app/components/url-preview/ClientPreview.tsx

@@ -71,14 +71,20 @@ export function EmbedOpenButton({ url }: EmbedOpenButtonProps) {
 }
 
 type YoutubeElementProps = {
-  videoId: string;
+  videoInfo: YoutubeLink;
   embedData: OEmbed;
 };
 
-export const YoutubeElement = as<'div', YoutubeElementProps>(({ videoId, embedData }) => {
-  const thumbnailUrl = `https://i.ytimg.com/vi/${videoId}/hqdefault.jpg`;
-  const iframeSrc = `https://www.youtube-nocookie.com/embed/${encodeURIComponent(videoId)}?autoplay=1`;
-  const videoUrl = `https://youtube.com/watch?v=${videoId}`;
+export const YoutubeElement = as<'div', YoutubeElementProps>(({ videoInfo, embedData }) => {
+  const thumbnailUrl = `https://i.ytimg.com/vi/${videoInfo.videoId}/hqdefault.jpg`;
+
+  const timestamp = videoInfo.timestamp ? `&start=${videoInfo.timestamp}` : '';
+  const playlist = videoInfo.playlist ? `&${videoInfo.playlist}` : '';
+
+  const iframeSrc = `https://www.youtube-nocookie.com/embed/${encodeURIComponent(videoInfo.videoId)}?autoplay=1${timestamp}`;
+  const videoUrl = videoInfo.isMusic
+    ? `https://music.youtube.com/watch?v=${videoInfo.videoId}${timestamp}${playlist}`
+    : `https://youtube.com/watch?v=${videoInfo.videoId}${timestamp}${playlist}`;
 
   const [blurHash, setBlurHash] = useState<string | undefined>();
 
@@ -141,19 +147,56 @@ export const YoutubeElement = as<'div', YoutubeElementProps>(({ videoId, embedDa
 });
 
 export const youtubeUrl = (url: string) =>
-  url.match(/(https:\/\/)(www\.|m\.|)(youtube\.com|youtu\.be)\//);
+  url.match(/(https:\/\/)(www\.|music\.|m\.|)(youtube\.com|youtu\.be)\//);
+
+type YoutubeLink = {
+  videoId: string;
+  timestamp?: string;
+  playlist?: string;
+  isMusic: boolean;
+};
+
+function parseYoutubeLink(url: string): YoutubeLink | null {
+  const urlsplit = url.split('/');
+  const path = urlsplit[urlsplit.length - 1];
+
+  let videoId: string | undefined;
+  let params: string[];
+
+  if (url.includes('youtu.be')) {
+    const split = path.split('?');
+    [videoId] = split;
+    params = split[1].split('&');
+  } else {
+    params = path.split('?')[1].split('&');
+    videoId = params.find((s) => s.startsWith('v='), params)?.split('v=')[1];
+  }
+
+  if (!videoId) return null;
+
+  // playlist is not used for the embed, it can be appended as is
+  const playlist = params.find((s) => s.startsWith('list='), params);
+  const timestamp = params.find((s) => s.startsWith('t='), params)?.split('t=')[1];
+
+  return {
+    videoId,
+    timestamp,
+    playlist,
+    isMusic: url.includes('music.youtube.com'),
+  };
+}
 
 export const ClientPreview = as<'div', { url: string }>(({ url, ...props }, ref) => {
   const [showYoutube] = useSetting(settingsAtom, 'clientPreviewYoutube');
 
   // this component is overly complicated, because it was designed to support more embed types than just youtube
   // i'm leaving this mess here to support later expansion
   const isYoutube = !!youtubeUrl(url);
-  const videoId = isYoutube ? url.match(/(?:shorts\/|watch\?v=|youtu\.be\/)(.{11})/)?.[1] : null;
+  const videoInfo = isYoutube ? parseYoutubeLink(url) : null;
 
   const fetchUrl =
-    isYoutube && videoId
-      ? `https://www.youtube.com/oembed?url=${encodeURIComponent(`https://youtube.com/watch?v=${videoId}`)}`
+    isYoutube && videoInfo
+      ? `https://www.youtube.com/oembed?url=${encodeURIComponent(`https://youtube.com/watch?v=${videoInfo.videoId}`)}`
       : url;
 
   const [embedStatus, loadEmbed] = useAsyncCallback(
@@ -168,12 +211,12 @@ export const ClientPreview = as<'div', { url: string }>(({ url, ...props }, ref)
 
   let previewContent;
 
-  if (isYoutube && videoId) {
+  if (videoInfo) {
     if (showYoutube) {
       if (embedStatus.status === AsyncStatus.Error) return null;
 
       if (embedStatus.status === AsyncStatus.Success && embedStatus.data) {
-        previewContent = <YoutubeElement videoId={videoId} embedData={embedStatus.data} />;
+        previewContent = <YoutubeElement videoInfo={videoInfo} embedData={embedStatus.data} />;
       } else {
         previewContent = (
           <Box grow="Yes" alignItems="Center" justifyContent="Center">