From f3517708ff34093a544c09d6f5f1ec806130d5cc Mon Sep 17 00:00:00 2001
From: LuanRT <luan.lrt4@gmail.com>
Date: Wed, 8 Mar 2023 17:43:20 -0300
Subject: [PATCH] fix(MultiMarkersPlayerBar): avoid observing undefined objects

---
 src/parser/classes/DecoratedPlayerBar.ts    |  3 ++-
 src/parser/classes/MultiMarkersPlayerBar.ts | 10 +++++++---
 2 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/src/parser/classes/DecoratedPlayerBar.ts b/src/parser/classes/DecoratedPlayerBar.ts
index e45c03179..842679d90 100644
--- a/src/parser/classes/DecoratedPlayerBar.ts
+++ b/src/parser/classes/DecoratedPlayerBar.ts
@@ -2,6 +2,7 @@ import Parser from '../index.js';
 import { YTNode } from '../helpers.js';
 import type Button from './Button.js';
 import type MultiMarkersPlayerBar from './MultiMarkersPlayerBar.js';
+import type { RawNode } from '../index.js';
 
 class DecoratedPlayerBar extends YTNode {
   static type = 'DecoratedPlayerBar';
@@ -9,7 +10,7 @@ class DecoratedPlayerBar extends YTNode {
   player_bar: MultiMarkersPlayerBar | null;
   player_bar_action_button: Button | null;
 
-  constructor(data: any) {
+  constructor(data: RawNode) {
     super();
     this.player_bar = Parser.parseItem<MultiMarkersPlayerBar>(data.playerBar);
     this.player_bar_action_button = Parser.parseItem<Button>(data.playerBarActionButton);
diff --git a/src/parser/classes/MultiMarkersPlayerBar.ts b/src/parser/classes/MultiMarkersPlayerBar.ts
index 9b9da014a..d6868eb3e 100644
--- a/src/parser/classes/MultiMarkersPlayerBar.ts
+++ b/src/parser/classes/MultiMarkersPlayerBar.ts
@@ -1,6 +1,7 @@
 import Parser from '../index.js';
 import type Chapter from './Chapter.js';
 import type Heatmap from './Heatmap.js';
+import type { RawNode } from '../index.js';
 
 import { observe, ObservedArray, YTNode } from '../helpers.js';
 
@@ -13,7 +14,7 @@ class Marker extends YTNode {
     chapters?: Chapter[];
   };
 
-  constructor (data: any) {
+  constructor (data: RawNode) {
     super();
     this.marker_key = data.key;
 
@@ -34,9 +35,12 @@ class MultiMarkersPlayerBar extends YTNode {
 
   markers_map: ObservedArray<Marker>;
 
-  constructor(data: any) {
+  constructor(data: RawNode) {
     super();
-    this.markers_map = observe(data.markersMap?.map((marker: { key: string; value: { [key: string ]: any }}) => new Marker(marker)));
+    this.markers_map = observe(data.markersMap?.map((marker: {
+      key: string;
+      value: { [key: string ]: any
+    }}) => new Marker(marker)) || []);
   }
 }