2 files changed, 147 insertions, 29 deletions
diff --git a/src/lib/strings/embed-player.ts b/src/lib/strings/embed-player.ts
new file mode 100644
index 000000000..fdd39280e
--- /dev/null
+++ b/src/lib/strings/embed-player.ts
@@ -0,0 +1,147 @@
+export type EmbedPlayerParams =
+  | {type: 'youtube_video'; videoId: string; playerUri: string}
+  | {type: 'twitch_live'; channelId: string; playerUri: string}
+  | {type: 'spotify_album'; albumId: string; playerUri: string}
+  | {
+      type: 'spotify_playlist'
+      playlistId: string
+      playerUri: string
+    }
+  | {type: 'spotify_song'; songId: string; playerUri: string}
+  | {type: 'soundcloud_track'; user: string; track: string; playerUri: string}
+  | {type: 'soundcloud_set'; user: string; set: string; playerUri: string}
+
+export function parseEmbedPlayerFromUrl(
+  url: string,
+): EmbedPlayerParams | undefined {
+  let urlp
+  try {
+    urlp = new URL(url)
+  } catch (e) {
+    return undefined
+  }
+
+  // youtube
+  if (urlp.hostname === 'youtu.be') {
+    const videoId = urlp.pathname.split('/')[1]
+    if (videoId) {
+      return {
+        type: 'youtube_video',
+        videoId,
+        playerUri: `https://www.youtube.com/embed/${videoId}?autoplay=1`,
+      }
+    }
+  }
+  if (urlp.hostname === 'www.youtube.com' || urlp.hostname === 'youtube.com') {
+    const [_, page, shortVideoId] = urlp.pathname.split('/')
+    const videoId =
+      page === 'shorts' ? shortVideoId : (urlp.searchParams.get('v') as string)
+
+    if (videoId) {
+      return {
+        type: 'youtube_video',
+        videoId,
+        playerUri: `https://www.youtube.com/embed/${videoId}?autoplay=1`,
+      }
+    }
+  }
+
+  // twitch
+  if (urlp.hostname === 'twitch.tv' || urlp.hostname === 'www.twitch.tv') {
+    const parts = urlp.pathname.split('/')
+    if (parts.length === 2 && parts[1]) {
+      return {
+        type: 'twitch_live',
+        channelId: parts[1],
+        playerUri: `https://player.twitch.tv/?volume=0.5&!muted&autoplay&channel=${parts[1]}&parent=localhost`,
+      }
+    }
+  }
+
+  // spotify
+  if (urlp.hostname === 'open.spotify.com') {
+    const [_, type, id] = urlp.pathname.split('/')
+    if (type && id) {
+      if (type === 'playlist') {
+        return {
+          type: 'spotify_playlist',
+          playlistId: id,
+          playerUri: `https://open.spotify.com/embed/playlist/${id}`,
+        }
+      }
+      if (type === 'album') {
+        return {
+          type: 'spotify_album',
+          albumId: id,
+          playerUri: `https://open.spotify.com/embed/album/${id}`,
+        }
+      }
+      if (type === 'track') {
+        return {
+          type: 'spotify_song',
+          songId: id,
+          playerUri: `https://open.spotify.com/embed/track/${id}`,
+        }
+      }
+    }
+  }
+
+  // soundcloud
+  if (
+    urlp.hostname === 'soundcloud.com' ||
+    urlp.hostname === 'www.soundcloud.com'
+  ) {
+    const [_, user, trackOrSets, set] = urlp.pathname.split('/')
+
+    if (user && trackOrSets) {
+      if (trackOrSets === 'sets' && set) {
+        return {
+          type: 'soundcloud_set',
+          user,
+          set: set,
+          playerUri: `https://w.soundcloud.com/player/?url=${url}&auto_play=true&visual=false&hide_related=true`,
+        }
+      }
+
+      return {
+        type: 'soundcloud_track',
+        user,
+        track: trackOrSets,
+        playerUri: `https://w.soundcloud.com/player/?url=${url}&auto_play=true&visual=false&hide_related=true`,
+      }
+    }
+  }
+}
+
+export function getPlayerHeight({
+  type,
+  width,
+  hasThumb,
+}: {
+  type: EmbedPlayerParams['type']
+  width: number
+  hasThumb: boolean
+}) {
+  if (!hasThumb) return (width / 16) * 9
+
+  switch (type) {
+    case 'youtube_video':
+    case 'twitch_live':
+      return (width / 16) * 9
+    case 'spotify_album':
+      return 380
+    case 'spotify_playlist':
+      return 360
+    case 'spotify_song':
+      if (width <= 300) {
+        return 180
+      }
+      return 232
+    case 'soundcloud_track':
+      return 165
+    case 'soundcloud_set':
+      return 360
+    default:
+      return width
+  }
+}
diff --git a/src/lib/strings/url-helpers.ts b/src/lib/strings/url-helpers.ts
index e9bf4111d..8a71718c8 100644
--- a/src/lib/strings/url-helpers.ts
+++ b/src/lib/strings/url-helpers.ts
@@ -139,35 +139,6 @@ export function feedUriToHref(url: string): string {
   }
 }
 
-export function getYoutubeVideoId(link: string): string | undefined {
-  let url
-  try {
-    url = new URL(link)
-  } catch (e) {
-    return undefined
-  }
-
-  if (
-    url.hostname !== 'www.youtube.com' &&
-    url.hostname !== 'youtube.com' &&
-    url.hostname !== 'youtu.be'
-  ) {
-    return undefined
-  }
-  if (url.hostname === 'youtu.be') {
-    const videoId = url.pathname.split('/')[1]
-    if (!videoId) {
-      return undefined
-    }
-    return videoId
-  }
-  const videoId = url.searchParams.get('v') as string
-  if (!videoId) {
-    return undefined
-  }
-  return videoId
-}
-
 /**
  * Checks if the label in the post text matches the host of the link facet.
  *