From 93e26438aef077a906b05a86bdfa397a80e8fbc4 Mon Sep 17 00:00:00 2001
From: shiny-comic <shiny-comic@winPC>
Date: Sat, 14 Mar 2026 19:48:19 +0900
Subject: [PATCH 1/3] fix: Generate thumbnails of subbed playlists

This fix #4015.
---
 config/sql/playlists.sql                             |  3 ++-
 .../migrations/0011_add_thumnail_id_to_playlists.cr  | 12 ++++++++++++
 src/invidious/playlists.cr                           |  4 +++-
 3 files changed, 17 insertions(+), 2 deletions(-)
 create mode 100644 src/invidious/database/migrations/0011_add_thumnail_id_to_playlists.cr

diff --git a/config/sql/playlists.sql b/config/sql/playlists.sql
index 83efce48..47f0742b 100644
--- a/config/sql/playlists.sql
+++ b/config/sql/playlists.sql
@@ -23,7 +23,8 @@ CREATE TABLE IF NOT EXISTS public.playlists
     created timestamptz,
     updated timestamptz,
     privacy privacy,
-    index int8[]
+    index int8[],
+    thumbnail_id text
 );
 
 GRANT ALL ON public.playlists TO current_user;
diff --git a/src/invidious/database/migrations/0011_add_thumnail_id_to_playlists.cr b/src/invidious/database/migrations/0011_add_thumnail_id_to_playlists.cr
new file mode 100644
index 00000000..fc0f8c62
--- /dev/null
+++ b/src/invidious/database/migrations/0011_add_thumnail_id_to_playlists.cr
@@ -0,0 +1,12 @@
+module Invidious::Database::Migrations
+  class AddThumbnailIdToPlaylists < Migration
+    version 11
+
+    def up(conn : DB::Connection)
+      conn.exec <<-SQL
+        ALTER TABLE public.playlists
+          ADD COLUMN IF NOT EXISTS thumbnail_id TEXT;
+      SQL
+    end
+  end
+end
diff --git a/src/invidious/playlists.cr b/src/invidious/playlists.cr
index eb084331..30da92c7 100644
--- a/src/invidious/playlists.cr
+++ b/src/invidious/playlists.cr
@@ -179,7 +179,6 @@ struct InvidiousPlaylist
   property privacy : PlaylistPrivacy = PlaylistPrivacy::Private
   property index : Array(Int64)
 
-  @[DB::Field(ignore: true)]
   property thumbnail_id : String?
 
   module PlaylistPrivacyConverter
@@ -265,6 +264,7 @@ def create_playlist(title, privacy, user)
     updated:     Time.utc,
     privacy:     privacy,
     index:       [] of Int64,
+    thumbnail_id: nil,
   })
 
   Invidious::Database::Playlists.insert(playlist)
@@ -273,6 +273,7 @@ def create_playlist(title, privacy, user)
 end
 
 def subscribe_playlist(user, playlist)
+  thumbnail_id = playlist.thumbnail.try &.match(/vi\/([a-zA-Z0-9_-]{11})/).try &.[1]
   playlist = InvidiousPlaylist.new({
     title:       playlist.title[..150],
     id:          playlist.id,
@@ -283,6 +284,7 @@ def subscribe_playlist(user, playlist)
     updated:     playlist.updated,
     privacy:     PlaylistPrivacy::Private,
     index:       [] of Int64,
+    thumbnail_id: thumbnail_id,
   })
 
   Invidious::Database::Playlists.insert(playlist)

From 8519caf571efe9dc2c1bd71fe7a2923bf1c63288 Mon Sep 17 00:00:00 2001
From: shiny-comic <shiny-comic@winPC>
Date: Mon, 16 Mar 2026 04:20:51 +0900
Subject: [PATCH 2/3] style: adjust align

---
 src/invidious/playlists.cr | 36 ++++++++++++++++++------------------
 1 file changed, 18 insertions(+), 18 deletions(-)

diff --git a/src/invidious/playlists.cr b/src/invidious/playlists.cr
index 30da92c7..9cffdacb 100644
--- a/src/invidious/playlists.cr
+++ b/src/invidious/playlists.cr
@@ -255,15 +255,15 @@ def create_playlist(title, privacy, user)
   plid = "IVPL#{Random::Secure.urlsafe_base64(24)[0, 31]}"
 
   playlist = InvidiousPlaylist.new({
-    title:       title.byte_slice(0, 150),
-    id:          plid,
-    author:      user.email,
-    description: "", # Max 5000 characters
-    video_count: 0,
-    created:     Time.utc,
-    updated:     Time.utc,
-    privacy:     privacy,
-    index:       [] of Int64,
+    title:        title.byte_slice(0, 150),
+    id:           plid,
+    author:       user.email,
+    description:  "", # Max 5000 characters
+    video_count:  0,
+    created:      Time.utc,
+    updated:      Time.utc,
+    privacy:      privacy,
+    index:        [] of Int64,
     thumbnail_id: nil,
   })
 
@@ -275,15 +275,15 @@ end
 def subscribe_playlist(user, playlist)
   thumbnail_id = playlist.thumbnail.try &.match(/vi\/([a-zA-Z0-9_-]{11})/).try &.[1]
   playlist = InvidiousPlaylist.new({
-    title:       playlist.title[..150],
-    id:          playlist.id,
-    author:      user.email,
-    description: "", # Max 5000 characters
-    video_count: playlist.video_count,
-    created:     Time.utc,
-    updated:     playlist.updated,
-    privacy:     PlaylistPrivacy::Private,
-    index:       [] of Int64,
+    title:        playlist.title[..150],
+    id:           playlist.id,
+    author:       user.email,
+    description:  "", # Max 5000 characters
+    video_count:  playlist.video_count,
+    created:      Time.utc,
+    updated:      playlist.updated,
+    privacy:      PlaylistPrivacy::Private,
+    index:        [] of Int64,
     thumbnail_id: thumbnail_id,
   })
 

From f00a727c7d389dc28ddc744a3f75f49e05ebf16b Mon Sep 17 00:00:00 2001
From: shiny-comic <shiny-comic@users.noreply.github.com>
Date: Mon, 16 Mar 2026 11:24:10 +0900
Subject: [PATCH 3/3] Fix typo

---
 ...l_id_to_playlists.cr => 0011_add_thumbnail_id_to_playlists.cr} | 0
 1 file changed, 0 insertions(+), 0 deletions(-)
 rename src/invidious/database/migrations/{0011_add_thumnail_id_to_playlists.cr => 0011_add_thumbnail_id_to_playlists.cr} (100%)

diff --git a/src/invidious/database/migrations/0011_add_thumnail_id_to_playlists.cr b/src/invidious/database/migrations/0011_add_thumbnail_id_to_playlists.cr
similarity index 100%
rename from src/invidious/database/migrations/0011_add_thumnail_id_to_playlists.cr
rename to src/invidious/database/migrations/0011_add_thumbnail_id_to_playlists.cr