From e9ed0812b95b04b82d5d3474f202176b008ade05 Mon Sep 17 00:00:00 2001
From: Xmader <xmader@outlook.com>
Date: Wed, 27 Jan 2021 11:20:29 -0500
Subject: [PATCH] fix: PDF page count

This will emit a malformed 642 byte PDF file.
---
 src/scoreinfo.ts | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/scoreinfo.ts b/src/scoreinfo.ts
index 4d99ec1..4056800 100644
--- a/src/scoreinfo.ts
+++ b/src/scoreinfo.ts
@@ -106,7 +106,12 @@ export class SheetInfoInPage extends SheetInfo {
   constructor (private document: Document) { super() }
 
   get pageCount (): number {
-    return this.document.querySelectorAll('._2uWw4').length
+    const sheet0Img = this.document.querySelector('img[src*=score_]')
+    const sheet0Div = sheet0Img?.parentElement
+    if (!sheet0Div) {
+      throw new Error('no sheet images found')
+    }
+    return this.document.getElementsByClassName(sheet0Div.className).length
   }
 
   get thumbnailUrl (): string {