From 3499277c2d27520f4526f3de6c6540d336d7efa8 Mon Sep 17 00:00:00 2001
From: John O'Keefe <jrokeefe@protonmail.com>
Date: Thu, 9 Apr 2026 21:16:58 -0400
Subject: [PATCH] refactor(reader): update progress tracking with EPUB location
 data

Simplify and enhance reading progress updates:
- Simplify payload structure by flattening location object
- Add epubcfi field to preserve EPUB reading position
- Add percentage field for normalized progress tracking
- Remove unnecessary nested location structure

This aligns with the updated backend API and provides
better support for reflowable EPUB content position tracking.
---
 web/src/reader/core/reader-services.ts | 29 ++++++--------------------
 1 file changed, 6 insertions(+), 23 deletions(-)

diff --git a/web/src/reader/core/reader-services.ts b/web/src/reader/core/reader-services.ts
index 2342093..afa2844 100644
--- a/web/src/reader/core/reader-services.ts
+++ b/web/src/reader/core/reader-services.ts
@@ -1,9 +1,4 @@
-import { apiPut } from "../../api";
-
-interface ReadingProgress {
-  current_page: number;
-  total_pages: number;
-}
+import { apiPut, ReadingProgress } from "../../api";
 
 interface ExtendedProgress {
   character?: number;
@@ -20,25 +15,13 @@ export async function updateReadingProgress(
     console.warn("Skipping progress update - no valid mediaItemId");
     return;
   }
+
   const payload: any = {
-    location: {
-      page: progress.current_page,
-      total_pages: progress.total_pages,
-    },
+    current_page: progress.current_page,
+    total_pages: progress.total_pages,
+    epubcfi: progress.epubcfi || "", // ADD THIS
+    percentage: extended?.percentage || 0, // ADD THIS
   };
-
-  if (extended) {
-    if (extended.character !== undefined) {
-      payload.location.character = extended.character;
-    }
-    if (extended.chapter !== undefined) {
-      payload.location.chapter = extended.chapter;
-    }
-    if (extended.percentage !== undefined) {
-      payload.location.percentage = extended.percentage;
-    }
-  }
-
   const response = await apiPut(
     `/media-items/${mediaItemId}/progress`,
     payload,