Update the lastUpdated timestamp in library when book is opened

apps/readest-app/src/app/reader/page.tsx

@@ -21,11 +21,17 @@ const ReaderPage = () => {
 
   useEffect(() => {
     envConfig.appService().then((appService) => {
-      appService.loadSettings().then(() => {
-        if (id && !bookState.content) {
-          fetchBook(appService, id);
-        }
-      });
+      appService
+        .loadSettings()
+        .then(() => {
+          return id && !bookState.content ? fetchBook(appService, id) : null;
+        })
+        .then((book) => {
+          if (book) {
+            book.lastUpdated = Date.now();
+            appService.updateLibraryBook(book);
+          }
+        });
     });
   }, [id, fetchBook, bookState.content, envConfig]);
 

apps/readest-app/src/store/readerStore.ts

@@ -1,6 +1,6 @@
 import { create } from 'zustand';
 
-import { BookNote, BookContent } from '@/types/book';
+import { BookNote, BookContent, Book } from '@/types/book';
 import { AppService } from '@/types/system';
 
 interface BookState {
@@ -12,7 +12,7 @@ interface BookState {
 
 interface ReaderStore {
   books: Record<string, BookState>;
-  fetchBook: (appService: AppService, id: string) => Promise<void>;
+  fetchBook: (appService: AppService, id: string) => Promise<Book | null>;
   addNote: (id: string, note: BookNote) => void;
 }
 
@@ -42,6 +42,7 @@ export const useReaderStore = create<ReaderStore>((set) => {
             [id]: { ...state.books[id], loading: false, content },
           },
         }));
+        return book;
       } catch (error) {
         console.error(error);
         set((state) => ({
@@ -50,6 +51,7 @@ export const useReaderStore = create<ReaderStore>((set) => {
             [id]: { ...state.books[id], loading: false, error: 'Failed to load book.' },
           },
         }));
+        return null;
       }
     },
 

apps/readest-app/src/types/system.ts

@@ -31,5 +31,6 @@ export interface AppService {
   loadBookContent(book: Book): Promise<BookContent>;
   loadLibraryBooks(): Promise<Book[]>;
   saveLibraryBooks(books: Book[]): Promise<void>;
+  updateLibraryBook(book: Book): Promise<void>;
   getCoverImageUrl(book: Book): string;
 }