Remove missing books from recent list

src/RecentBooksStore.cpp

@@ -30,6 +30,8 @@ void RecentBooksStore::addBook(const std::string& path, const std::string& title
   int8_t bionicReadingOverride = -1;
   int8_t paragraphAlignmentOverride = -1;
 
+  pruneMissing();
+
   // Remove existing entry if present
   auto it =
       std::find_if(recentBooks.begin(), recentBooks.end(), [&](const RecentBook& book) { return book.path == path; });
@@ -66,6 +68,14 @@ void RecentBooksStore::removeBook(const std::string& path) {
   }
 }
 
+bool RecentBooksStore::isMissing(const RecentBook& book) { return !Storage.exists(book.path.c_str()); }
+
+bool RecentBooksStore::pruneMissing() {
+  const size_t before = recentBooks.size();
+  recentBooks.erase(std::remove_if(recentBooks.begin(), recentBooks.end(), &isMissing), recentBooks.end());
+  return recentBooks.size() != before;
+}
+
 void RecentBooksStore::updateBook(const std::string& path, const std::string& title, const std::string& author,
                                   const std::string& series, const std::string& coverBmpPath) {
   auto it =

src/RecentBooksStore.h

@@ -62,6 +62,13 @@ class RecentBooksStore {
   // Get the count of recent books
   int getCount() const { return static_cast<int>(recentBooks.size()); }
 
+  // Returns true if the book's file is missing from storage
+  static bool isMissing(const RecentBook& book);
+
+  // Remove entries whose backing file is no longer on the SD card.
+  // Returns true if any entry was removed. Does not persist — caller decides.
+  bool pruneMissing();
+
   bool saveToFile() const;
 
   bool loadFromFile();

src/activities/home/HomeActivity.cpp

@@ -168,8 +168,7 @@ void HomeActivity::loadRecentBooks(int maxBooks) {
       break;
     }
 
-    // Skip if file no longer exists
-    if (!Storage.exists(book.path.c_str())) {
+    if (RecentBooksStore::isMissing(book)) {
       continue;
     }
 

src/activities/home/RecentBooksActivity.cpp

@@ -68,15 +68,7 @@ std::string gridThumbPath(const std::string& coverBmpPath, int tw, int th) {
 }
 }  // namespace
 
-void RecentBooksActivity::loadRecentBooks() {
-  recentBooks.clear();
-  const auto& books = RECENT_BOOKS.getBooks();
-  recentBooks.reserve(books.size());
-  for (const auto& book : books) {
-    if (!Storage.exists(book.path.c_str())) continue;
-    recentBooks.push_back(book);
-  }
-}
+void RecentBooksActivity::loadRecentBooks() { recentBooks = RECENT_BOOKS.getBooks(); }
 
 bool RecentBooksActivity::loadNextCover() {
   const Rect contentRect = UITheme::getContentRect(renderer, true, true);
@@ -134,6 +126,10 @@ bool RecentBooksActivity::loadNextCover() {
 void RecentBooksActivity::onEnter() {
   Activity::onEnter();
 
+  if (RECENT_BOOKS.pruneMissing()) {
+    RECENT_BOOKS.saveToFile();
+  }
+
   loadRecentBooks();
 
   selectorIndex = 0;