feat(parser): Update LiveChatTickerPaidMessageItem (#845)

* Change `duration_sec` property type from `string` to `number`
* Change `full_duration_sec` property type from `string` to `number`
* Handle the scenario where the author's name is represented as `authUsername`
* Mark `amount` property as optional
* Add `start_background_color` property
* Add `amount_text_color` property
* Add `end_background_color` property
* Add `animation_origin` property
* Add `open_engagement_panel_command` property

src/parser/classes/livechat/items/LiveChatTickerPaidMessageItem.ts

@@ -9,28 +9,42 @@ import type { RawNode } from '../../../index.js';
 export default class LiveChatTickerPaidMessageItem extends YTNode {
   static type = 'LiveChatTickerPaidMessageItem';
 
+  id: string;
   author: Author;
-  amount: Text;
-  duration_sec: string;
-  full_duration_sec: string;
+  amount?: Text;
+  amount_text_color: number;
+  start_background_color: number;
+  end_background_color: number;
+  duration_sec: number;
+  full_duration_sec: number;
   show_item: YTNode;
   show_item_endpoint: NavigationEndpoint;
-  id: string;
+  animation_origin: string;
+  open_engagement_panel_command: NavigationEndpoint;
 
   constructor(data: RawNode) {
     super();
+    this.id = data.id;
+
     this.author = new Author(
-      data.authorName,
+      data.authorName || data.authorUsername,
       data.authorBadges,
       data.authorPhoto,
       data.authorExternalChannelId
     );
 
-    this.amount = new Text(data.amount);
+    if (Reflect.has(data, 'amount')) {
+      this.amount = new Text(data.amount);
+    }
+
+    this.amount_text_color = data.amountTextColor;
+    this.start_background_color = data.startBackgroundColor;
+    this.end_background_color = data.endBackgroundColor;
     this.duration_sec = data.durationSec;
     this.full_duration_sec = data.fullDurationSec;
     this.show_item = Parser.parseItem(data.showItemEndpoint?.showLiveChatItemEndpoint?.renderer);
     this.show_item_endpoint = new NavigationEndpoint(data.showItemEndpoint);
-    this.id = data.id;
+    this.animation_origin = data.animationOrigin;
+    this.open_engagement_panel_command = new NavigationEndpoint(data.openEngagementPanelCommand);
   }
 }