chore(deps): bump actions/checkout from 6 to 7

Bumps [actions/checkout](https://github.com/actions/checkout) from 6 to 7.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](https://github.com/actions/checkout/compare/v6...v7)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/build-nightly-container.yml

@@ -36,7 +36,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
 
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v4

.github/workflows/build-stable-container.yml

@@ -27,7 +27,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
 
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v4

.github/workflows/ci.yml

@@ -50,7 +50,7 @@ jobs:
             stable: false
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
         with:
           submodules: true
 
@@ -98,7 +98,7 @@ jobs:
     runs-on: ${{ matrix.os }}
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - name: Build Docker
         run: docker compose build
@@ -126,7 +126,7 @@ jobs:
     continue-on-error: true
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
         with:
           submodules: true
 

src/invidious/playlists.cr

@@ -454,10 +454,6 @@ def get_playlist_videos(playlist : InvidiousPlaylist | Playlist, offset : Int32,
   end
 end
 
-# TODO (2026-06-24): Migrate this function to use parsers instead, as it uses,
-# the same LockupViewModel used in Channel videos and Youtube playlists that
-# appears on searches (Invidious /search endpoint).
-# Related to https://github.com/iv-org/invidious/pull/5736
 def extract_playlist_videos(playlist_id : String, initial_data : Hash(String, JSON::Any))
   videos = [] of PlaylistVideo | ProblematicTimelineItem
 
@@ -471,7 +467,8 @@ def extract_playlist_videos(playlist_id : String, initial_data : Hash(String, JS
       tabs_contents = tabs_renderer.["contents"]? || tabs_renderer.["content"]
 
       list_renderer = tabs_contents.["sectionListRenderer"]["contents"][0]
-      contents = list_renderer.["itemSectionRenderer"]["contents"].as_a
+      item_renderer = list_renderer.["itemSectionRenderer"]["contents"][0]
+      contents = item_renderer.["playlistVideoListRenderer"]["contents"].as_a
     else
       # Continuation data
       contents = initial_data["onResponseReceivedActions"][0]?
@@ -482,39 +479,15 @@ def extract_playlist_videos(playlist_id : String, initial_data : Hash(String, JS
   end
 
   contents.try &.each do |item|
-    if i = item["lockupViewModel"]?
-      thumbnail_view_model = i.dig?(
-        "contentImage", "thumbnailViewModel"
-      )
-
-      watch_endpoint = i.dig?("rendererContext", "commandContext", "onTap", "innertubeCommand", "watchEndpoint")
-      video_id = watch_endpoint.try &.["videoId"]?.try &.as_s
-      plid = watch_endpoint.try &.["playlistId"]?.try &.as_s || playlist_id
-      index = watch_endpoint.try &.["index"]?.try &.as_i64
-
-      metadata = i["metadata"]?
-      lockup_metadata_view_model = metadata.try &.dig?("lockupMetadataViewModel")
-      title = lockup_metadata_view_model.try &.dig?("title", "content").try &.as_s
-      lockup_metadata = lockup_metadata_view_model.try &.dig?("metadata")
-      metadata_rows = lockup_metadata.try &.dig?("contentMetadataViewModel", "metadataRows").try &.as_a
-
-      # Find the metadataParts with commandRuns inside, which contains author
-      # information.
-      metadata_parts = metadata_rows.try &.find { |row|
-        parts = row["metadataParts"]?.try &.as_a
-        parts && parts.any? { |item2| item2.dig?("text", "commandRuns").try &.as_a }
-      }.try &.["metadataParts"].as_a
-
-      if author_info = metadata_parts.try &.find(&.dig?("text", "commandRuns"))
-           .try &.["text"]
-        author = author_info["content"].as_s
-        ucid = author_info.dig?("commandRuns", 0, "onTap", "innertubeCommand", "browseEndpoint", "browseId")
-          .try &.as_s
-      end
-
-      length = thumbnail_view_model.try &.dig?("overlays", 0, "thumbnailBottomOverlayViewModel", "badges", 0, "thumbnailBadgeViewModel", "text").try &.as_s
-      length_seconds = decode_length_seconds(length) if length
+    if i = item["playlistVideoRenderer"]?
+      video_id = i.dig?("navigationEndpoint", "watchEndpoint", "videoId").try &.as_s || i.dig("videoId").as_s
+      plid = i.dig?("navigationEndpoint", "watchEndpoint", "playlistId").try &.as_s || playlist_id
+      index = i.dig?("navigationEndpoint", "watchEndpoint", "index").try &.as_i64 || i.dig("index", "simpleText").as_s.to_i64
 
+      title = i["title"].try { |t| t["simpleText"]? || t["runs"]?.try &.[0]["text"]? }.try &.as_s || ""
+      author = i["shortBylineText"]?.try &.["runs"][0]["text"].as_s || ""
+      ucid = i["shortBylineText"]?.try &.["runs"][0]["navigationEndpoint"]["browseEndpoint"]["browseId"].as_s || ""
+      length_seconds = i["lengthSeconds"]?.try &.as_s.to_i
       live = false
 
       if !length_seconds
@@ -523,15 +496,15 @@ def extract_playlist_videos(playlist_id : String, initial_data : Hash(String, JS
       end
 
       videos << PlaylistVideo.new({
-        title:          title || "",
-        id:             video_id || "",
-        author:         author || "",
-        ucid:           ucid || "",
+        title:          title,
+        id:             video_id,
+        author:         author,
+        ucid:           ucid,
         length_seconds: length_seconds,
         published:      Time.utc,
         plid:           plid,
         live_now:       live,
-        index:          index || -1_i64,
+        index:          index,
       })
     end
   rescue ex