fix: add PlaylistHeader renderer

#81

lib/parser/contents/classes/PlaylistHeader.js

@@ -0,0 +1,30 @@
+'use strict';
+
+const Text = require('./Text');
+const Thumbnail = require('./Thumbnail');
+const PlaylistAuthor = require('./PlaylistAuthor');
+const Parser = require('..');
+
+class PlaylistHeader {
+  type = 'PlaylistHeader';
+  
+  constructor(data) {
+    this.id = data.playlistId;
+    this.title = new Text(data.title);
+    this.stats = data.stats.map((stat) => new Text(stat));
+    this.brief_stats = data.briefStats.map((stat) => new Text(stat));
+    this.author = new PlaylistAuthor({ ...data.ownerText, navigationEndpoint: data.ownerEndpoint }, data.ownerBadges, null);
+    this.description = new Text(data.descriptionText);
+    this.num_videos = new Text(data.numVideosText);
+    this.view_count = new Text(data.viewCountText);
+    this.can_share = data.shareData.canShare;
+    this.can_delete = data.editableDetails.canDelete;
+    this.is_editable = data.isEditable;
+    this.privacy = data.privacy;
+    this.save_button = Parser.parse(data.saveButton);
+    this.shuffle_play_button = Parser.parse(data.shufflePlayButton);
+    this.menu = Parser.parse(data.moreActionsMenu);
+  }
+}
+
+module.exports = PlaylistHeader;

lib/parser/youtube/Playlist.js

@@ -16,7 +16,11 @@ class Playlist extends Feed {
         thumbnails: primary_info.thumbnail_renderer.thumbnail,
         total_items: this.#getStat(0, primary_info),
         views: this.#getStat(1, primary_info),
-        last_updated: this.#getStat(2, primary_info)
+        last_updated: this.#getStat(2, primary_info),
+        can_share: this.page.header.can_share,
+        can_delete: this.page.header.can_delete,
+        is_editable: this.page.header.is_editable,
+        privacy: this.page.header.privacy
       }
     }