Add 'playlistThumbnail' to playlist objects

src/invidious.cr

@@ -4101,8 +4101,10 @@ get "/api/v1/playlists/:plid" do |env|
 
   response = JSON.build do |json|
     json.object do
+      json.field "type", "playlist"
       json.field "title", playlist.title
       json.field "playlistId", playlist.id
+      json.field "playlistThumbnail", playlist.thumbnail
 
       json.field "author", playlist.author
       json.field "authorId", playlist.ucid

src/invidious/helpers/helpers.cr

@@ -331,18 +331,8 @@ def extract_items(nodeset, ucid = nil, author_name = nil)
       next
     end
 
-    anchor = node.xpath_node(%q(.//div[contains(@class, "yt-lockup-byline")]/a))
-    if anchor
-      author = anchor.content.strip
-      author_id = anchor["href"].split("/")[-1]
-    end
-
-    author ||= author_name
-    author_id ||= ucid
-
-    author ||= ""
-    author_id ||= ""
-
+    author_id = node.xpath_node(%q(.//div[contains(@class, "yt-lockup-byline")]/a)).try &.["href"].split("/")[-1] || ucid || ""
+    author = node.xpath_node(%q(.//div[contains(@class, "yt-lockup-byline")]/a)).try &.content.strip || author_name || ""
     description_html = node.xpath_node(%q(.//div[contains(@class, "yt-lockup-description")])).try &.to_s || ""
 
     tile = node.xpath_node(%q(.//div[contains(@class, "yt-lockup-tile")]))
@@ -401,13 +391,13 @@ def extract_items(nodeset, ucid = nil, author_name = nil)
       playlist_thumbnail ||= node.xpath_node(%q(.//span/img)).try &.["src"]
 
       items << SearchPlaylist.new(
-        title,
-        plid,
-        author,
-        author_id,
-        video_count,
-        videos,
-        playlist_thumbnail
+        title: title,
+        id: plid,
+        author: author,
+        ucid: author_id,
+        video_count: video_count,
+        videos: videos,
+        thumbnail: playlist_thumbnail
       )
     when .includes? "yt-lockup-channel"
       author = title.strip
@@ -577,13 +567,13 @@ def extract_shelf_items(nodeset, ucid = nil, author_name = nil)
         end
 
         items << SearchPlaylist.new(
-          playlist_title,
-          plid,
-          author_name,
-          ucid,
-          video_count,
-          videos,
-          playlist_thumbnail
+          title: playlist_title,
+          id: plid,
+          author: author_name,
+          ucid: ucid,
+          video_count: video_count,
+          videos: videos,
+          thumbnail: playlist_thumbnail
         )
       end
     end
@@ -592,13 +582,13 @@ def extract_shelf_items(nodeset, ucid = nil, author_name = nil)
       plid = HTTP::Params.parse(URI.parse(id).query.not_nil!)["list"]
 
       items << SearchPlaylist.new(
-        title,
-        plid,
-        author_name,
-        ucid,
-        videos.size,
-        videos,
-        "/vi/#{videos[0].id}/mqdefault.jpg"
+        title: title,
+        id: plid,
+        author: author_name,
+        ucid: ucid,
+        video_count: videos.size,
+        videos: videos,
+        thumbnail: "https://i.ytimg.com/vi/#{videos[0].id}/mqdefault.jpg"
       )
     end
   end

src/invidious/playlists.cr

@@ -51,6 +51,7 @@ struct Playlist
     video_count:      Int32,
     views:            Int64,
     updated:          Time,
+    thumbnail:        String?,
   })
 end
 
@@ -223,6 +224,9 @@ def fetch_playlist(plid, locale)
   description_html = document.xpath_node(%q(//span[@class="pl-header-description-text"]/div/div[1])).try &.to_s ||
                      document.xpath_node(%q(//span[@class="pl-header-description-text"])).try &.to_s || ""
 
+  playlist_thumbnail = document.xpath_node(%q(//div[@class="pl-header-thumb"]/img)).try &.["data-thumb"]? ||
+                       document.xpath_node(%q(//div[@class="pl-header-thumb"]/img)).try &.["src"]
+
   # YouTube allows anonymous playlists, so most of this can be empty or optional
   anchor = document.xpath_node(%q(//ul[@class="pl-header-details"]))
   author = anchor.try &.xpath_node(%q(.//li[1]/a)).try &.content
@@ -234,15 +238,12 @@ def fetch_playlist(plid, locale)
 
   video_count = anchor.try &.xpath_node(%q(.//li[2])).try &.content.gsub(/\D/, "").to_i?
   video_count ||= 0
-  views = anchor.try &.xpath_node(%q(.//li[3])).try &.content.delete("No views, ").to_i64?
+
+  views = anchor.try &.xpath_node(%q(.//li[3])).try &.content.gsub(/\D/, "").to_i64?
   views ||= 0_i64
 
-  updated = anchor.try &.xpath_node(%q(.//li[4])).try &.content.lchop("Last updated on ").lchop("Updated ")
-  if updated
-    updated = decode_date(updated)
-  else
-    updated = Time.utc
-  end
+  updated = anchor.try &.xpath_node(%q(.//li[4])).try &.content.lchop("Last updated on ").lchop("Updated ").try { |date| decode_date(date) }
+  updated ||= Time.utc
 
   playlist = Playlist.new(
     title: title,
@@ -253,7 +254,8 @@ def fetch_playlist(plid, locale)
     description_html: description_html,
     video_count: video_count,
     views: views,
-    updated: updated
+    updated: updated,
+    thumbnail: playlist_thumbnail,
   )
 
   return playlist

src/invidious/search.cr

@@ -117,6 +117,7 @@ struct SearchPlaylist
       json.field "type", "playlist"
       json.field "title", self.title
       json.field "playlistId", self.id
+      json.field "playlistThumbnail", self.thumbnail
 
       json.field "author", self.author
       json.field "authorId", self.ucid