feat(library): add library view)

lib/app.dart

@@ -1,38 +1,19 @@
-import 'package:epubx/epubx.dart';
-import 'package:flipub/book_service.dart';
-import 'package:flipub/views/book_view.dart';
+import 'package:flipub/views/library_view.dart';
 import 'package:flutter/material.dart';
 
 const sharedPreferencesFontSizeKey = 'fontSize';
 
 class Flipub extends StatelessWidget {
   const Flipub({
     super.key,
-    required this.bookService,
   });
 
-  final BookService bookService;
-
   @override
   Widget build(BuildContext context) {
     return MaterialApp(
       debugShowCheckedModeBanner: false,
       theme: ThemeData.dark(),
-      home: FutureBuilder<EpubBook>(
-        future: bookService.parseBook(
-          'book_1.epub',
-        ),
-        builder: (context, snapshot) {
-          if (snapshot.hasData) {
-            return BookView(
-              book: snapshot.data!,
-            );
-          }
-          return const Center(
-            child: CircularProgressIndicator(),
-          );
-        },
-      ),
+      home: const LibrayView(),
     );
   }
 }

lib/data/book_library.dart

@@ -0,0 +1,7 @@
+class BookLibrary {
+  const BookLibrary({
+    required this.bookFileNames,
+  });
+
+  final List<String> bookFileNames;
+}

lib/main.dart

@@ -1,15 +1,11 @@
-import 'package:flipub/book_service.dart';
 import 'package:flutter/material.dart';
 import 'package:flipub/app.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 
 Future<void> main() async {
-  final BookService bookService = BookService();
   runApp(
-    ProviderScope(
-      child: Flipub(
-        bookService: bookService,
-      ),
+    const ProviderScope(
+      child: Flipub(),
     ),
   );
 }

lib/providers/book_provider.dart

@@ -0,0 +1,15 @@
+import 'dart:async';
+
+import 'package:epubx/epubx.dart';
+import 'package:flutter/services.dart';
+import 'package:riverpod_annotation/riverpod_annotation.dart';
+
+part 'book_provider.g.dart';
+
+@riverpod
+Future<EpubBook> book(BookRef ref, String fileName) async {
+  String fullPath = 'assets/books/$fileName';
+  ByteData byteData = await rootBundle.load(fullPath);
+  List<int> bytes = byteData.buffer.asUint8List();
+  return EpubReader.readBook(bytes);
+}

lib/providers/library_provider.dart

@@ -0,0 +1,17 @@
+import 'dart:async';
+
+import 'package:flipub/data/book_library.dart';
+import 'package:riverpod_annotation/riverpod_annotation.dart';
+
+part 'library_provider.g.dart';
+
+@riverpod
+Future<BookLibrary> bookLibrary(BookLibraryRef ref) async {
+  return const BookLibrary(
+    bookFileNames: [
+      'book_1.epub',
+      'book_2.epub',
+      'book_3.epub',
+    ],
+  );
+}

lib/views/book_cover.dart

@@ -0,0 +1,33 @@
+import 'dart:typed_data';
+
+import 'package:epubx/epubx.dart' show EpubBook;
+import 'package:flutter/material.dart';
+import 'package:image/image.dart' as image;
+
+class BookCover extends StatelessWidget {
+  const BookCover({
+    super.key,
+    required this.book,
+  });
+
+  final EpubBook book;
+
+  @override
+  Widget build(BuildContext context) {
+    return book.CoverImage != null
+        ? Image.memory(
+            Uint8List.fromList(
+              image.encodePng(book.CoverImage!),
+            ),
+            width: 200,
+            height: 200,
+          )
+        : const SizedBox(
+            height: 200,
+            width: 200,
+            child: Center(
+              child: Text('No cover'),
+            ),
+          );
+  }
+}

lib/views/book_view.dart

@@ -1,18 +1,47 @@
 import 'package:epubx/epubx.dart';
+import 'package:flipub/providers/book_provider.dart';
 import 'package:flipub/views/chapter_view.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 
 class BookView extends ConsumerWidget {
-  final EpubBook book;
+  final String bookFileName;
 
   const BookView({
     super.key,
-    required this.book,
+    required this.bookFileName,
   });
 
   @override
   Widget build(BuildContext context, WidgetRef ref) {
+    final AsyncValue<EpubBook> book = ref.watch(bookProvider(bookFileName));
+    return book.when(
+      data: (EpubBook book) {
+        return _BookViewContent(
+          book: book,
+        );
+      },
+      loading: () => const Center(
+        child: CircularProgressIndicator(),
+      ),
+      error: (error, stackTrace) {
+        return Center(
+          child: Text('Error: $error'),
+        );
+      },
+    );
+  }
+}
+
+class _BookViewContent extends StatelessWidget {
+  final EpubBook book;
+
+  const _BookViewContent({
+    required this.book,
+  });
+
+  @override
+  Widget build(BuildContext context) {
     return Scaffold(
       appBar: AppBar(
         title: Text(book.Title ?? 'Unknown title'),