From c538af4462b1ebf3a8894da408fb651fae6101ea Mon Sep 17 00:00:00 2001
From: schroda <50052685+schroda@users.noreply.github.com>
Date: Fri, 1 Mar 2024 01:17:03 +0100
Subject: [PATCH] Prevent unnecessary chapter updated due to restoring last
 read page (#621)

When resuming a chapter and restoring the last read page, a chapter update was send for the just restored page
---
 src/screens/Reader.tsx | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/screens/Reader.tsx b/src/screens/Reader.tsx
index b2c3a524..da660fef 100644
--- a/src/screens/Reader.tsx
+++ b/src/screens/Reader.tsx
@@ -355,6 +355,11 @@ export function Reader() {
             return;
         }
 
+        const chapterUpToDate = Chapters.getFromCache<TChapter>(chapter.id);
+        if (curPageDebounced === chapterUpToDate?.lastPageRead) {
+            return;
+        }
+
         // do not mutate the chapter, this will cause the page to jump around due to always scrolling to the last read page
         const updateLastPageRead = curPageDebounced !== -1;
         const updateIsRead = curPageDebounced === chapter.pageCount - 1;