feat(parser): Add AddToPlaylist node

src/parser/classes/AddToPlaylist.ts

@@ -0,0 +1,18 @@
+import { type ObservedArray, YTNode } from '../helpers.js';
+import { Parser, type RawNode } from '../index.js';
+import Button from './Button.js';
+import MenuTitle from './MenuTitle.js';
+import PlaylistAddToOption from './PlaylistAddToOption.js';
+
+export default class AddToPlaylist extends YTNode {
+  static type = 'AddToPlaylist';
+
+  public actions: ObservedArray<MenuTitle | Button>;
+  public playlists: ObservedArray<PlaylistAddToOption>;
+
+  constructor(data: RawNode) {
+    super();
+    this.actions = Parser.parseArray(data.actions, [ MenuTitle, Button ]);
+    this.playlists = Parser.parseArray(data.playlists, PlaylistAddToOption);
+  }
+}

src/parser/classes/MenuTitle.ts

@@ -0,0 +1,14 @@
+import { YTNode } from '../helpers.js';
+import { Text } from '../misc.js';
+import type { RawNode } from '../index.js';
+
+export default class MenuTitle extends YTNode {
+  static type = 'MenuTitle';
+
+  public title: Text;
+
+  constructor(data: RawNode) {
+    super();
+    this.title = new Text(data.title);
+  }
+}

src/parser/classes/PlaylistAddToOption.ts

@@ -0,0 +1,31 @@
+import { YTNode } from '../helpers.js';
+import { Text } from '../misc.js';
+import NavigationEndpoint from './NavigationEndpoint.js';
+import type { RawNode } from '../index.js';
+
+export type PrivacyIcon = {
+  icon_type: string | null;
+};
+
+export default class PlaylistAddToOption extends YTNode {
+  static type = 'PlaylistAddToOption';
+
+  public add_to_playlist_service_endpoint: NavigationEndpoint;
+  public contains_selected_videos: boolean;
+  public playlist_id: string;
+  public privacy: string;
+  public privacy_icon: PrivacyIcon;
+  public remove_from_playlist_service_endpoint: NavigationEndpoint;
+  public title: Text;
+
+  constructor(data: RawNode) {
+    super();
+    this.add_to_playlist_service_endpoint = new NavigationEndpoint(data.addToPlaylistServiceEndpoint);
+    this.contains_selected_videos = data.containsSelectedVideos;
+    this.playlist_id = data.playlistId;
+    this.privacy = data.privacy;
+    this.privacy_icon = { icon_type: data.privacyIcon?.iconType || null };
+    this.remove_from_playlist_service_endpoint = new NavigationEndpoint(data.removeFromPlaylistServiceEndpoint);
+    this.title = new Text(data.title);
+  }
+}