feat: multi select books and update book type

assets/translations/en-US.json

@@ -220,5 +220,8 @@
     "migration_v1_to_v2_retrigger_description": "Click if books are not showing up after update to v2.0.",
     "dark_mode_style": "Dark mode style",
     "dark_mode_natural": "Natural dark mode",
-    "dark_mode_amoled": "AMOLED dark mode"
+    "dark_mode_amoled": "AMOLED dark mode",
+    "selected": "Selected",
+    "change_book_type": "Change book type",
+    "update_successful_message": "Updated successfully!"
 }

lib/database/database_controler.dart

@@ -1,7 +1,11 @@
+import 'dart:io';
+
 import 'package:openreads/database/database_provider.dart';
 import 'package:openreads/model/book.dart';
 import 'package:sqflite/sqflite.dart';
 
+import '../core/constants.dart/enums.dart';
+
 class DatabaseController {
   final dbClient = DatabaseProvider.dbProvider;
 
@@ -125,4 +129,21 @@ class DatabaseController {
     final db = await dbClient.db;
     return await db.delete("booksTable");
   }
+
+  Future<List<Object?>> updateBookType(Set<int> ids, BookType bookType) async {
+    final db = await dbClient.db;
+    var batch = db.batch();
+
+    String bookTypeString = bookType == BookType.audiobook
+          ? 'audiobook'
+          : bookType == BookType.ebook
+              ? 'ebook'
+              : 'paper';
+
+    for (int id in ids) {
+      batch.update("booksTable", {"book_type": bookTypeString},
+      where: "id = ?", whereArgs: [id]);
+    }
+    return await batch.commit();
+  }
 }

lib/generated/locale_keys.g.dart

@@ -227,4 +227,7 @@ abstract class LocaleKeys {
   static const dark_mode_style = 'dark_mode_style';
   static const dark_mode_natural = 'dark_mode_natural';
   static const dark_mode_amoled = 'dark_mode_amoled';
+  static const selected = 'selected';
+  static const change_book_type = 'change_book_type';
+  static const update_successful_message = 'update_successful_message';
 }

lib/logic/cubit/book_cubit.dart

@@ -3,6 +3,8 @@ import 'package:openreads/model/book.dart';
 import 'package:openreads/resources/repository.dart';
 import 'package:rxdart/rxdart.dart';
 
+import '../../core/constants.dart/enums.dart';
+
 class BookCubit extends Cubit {
   final Repository repository = Repository();
 
@@ -115,6 +117,11 @@ class BookCubit extends Cubit {
     getAllBooks();
   }
 
+  updateBookType(Set<int> ids, BookType bookType) async {
+    repository.updateBookType(ids, bookType);
+    getAllBooks();
+  }
+
   deleteBook(int id) async {
     repository.deleteBook(id);
     getAllBooksByStatus();

lib/resources/repository.dart

@@ -1,6 +1,9 @@
 import 'package:openreads/database/database_controler.dart';
 import 'package:openreads/model/book.dart';
 
+import '../core/constants.dart/enums.dart';
+
+
 class Repository {
   final DatabaseController dbController = DatabaseController();
 
@@ -20,6 +23,8 @@ class Repository {
 
   Future updateBook(Book book) => dbController.updateBook(book);
 
+  Future updateBookType(Set<int> ids, BookType bookType) => dbController.updateBookType(ids, bookType);
+
   Future deleteBook(int index) => dbController.deleteBook(index);
 
   Future getBook(int index) => dbController.getBook(index);

lib/ui/books_screen/books_screen.dart

@@ -1,6 +1,7 @@
 import 'package:easy_localization/easy_localization.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
+import 'package:flutter_speed_dial/flutter_speed_dial.dart';
 import 'package:openreads/core/constants.dart/enums.dart';
 import 'package:openreads/core/themes/app_theme.dart';
 import 'package:openreads/generated/locale_keys.g.dart';
@@ -16,6 +17,8 @@ import 'package:openreads/ui/search_page/search_page.dart';
 import 'package:openreads/ui/settings_screen/settings_screen.dart';
 import 'package:openreads/ui/statistics_screen/statistics_screen.dart';
 
+import 'helper/multi_select_helper.dart';
+
 class BooksScreen extends StatefulWidget {
   const BooksScreen({Key? key}) : super(key: key);
 
@@ -26,6 +29,17 @@ class BooksScreen extends StatefulWidget {
 class _BooksScreenState extends State<BooksScreen>
     with AutomaticKeepAliveClientMixin {
   late List<String> moreButtonOptions;
+  Set<int> selectedBookIds = {};
+
+  _onItemSelected(int id) {
+    setState(() {
+      if (selectedBookIds.contains(id)) {
+        selectedBookIds.remove(id);
+      } else {
+        selectedBookIds.add(id);
+      }
+    });
+  }
 
   List<Book> _sortReadList({
     required SetSortState state,
@@ -429,10 +443,23 @@ class _BooksScreenState extends State<BooksScreen>
         if (state is SetThemeState) {
           AppTheme.init(state, context);
 
-          return Scaffold(
-            appBar: _buildAppBar(context),
-            floatingActionButton: _buildFAB(context),
-            body: _buildScaffoldBody(),
+          return WillPopScope(
+            child: Scaffold(
+              appBar: selectedBookIds.isNotEmpty
+                  ? _buildMultiSelectAppBar(context)
+                  : _buildAppBar(context),
+              floatingActionButton: selectedBookIds.isNotEmpty
+                  ? _buildMultiSelectFAB(state)
+                  : _buildFAB(context),
+              body: _buildScaffoldBody(),
+            ),
+            onWillPop: () {
+              if (selectedBookIds.isNotEmpty) {
+                _resetMultiselectMode();
+                return Future.value(false);
+              }
+              return Future.value(true);
+            },
           );
         } else {
           return const SizedBox();
@@ -441,6 +468,54 @@ class _BooksScreenState extends State<BooksScreen>
     );
   }
 
+  AppBar _buildMultiSelectAppBar(BuildContext context) {
+    return AppBar(
+        title: Row(
+      children: [
+        IconButton(
+          icon: const Icon(Icons.close),
+          onPressed: () {
+            _resetMultiselectMode();
+          },
+        ),
+        Text(
+          '${LocaleKeys.selected.tr()} ${selectedBookIds.length}',
+          style: const TextStyle(fontSize: 18, fontWeight: FontWeight.bold),
+        ),
+      ],
+    ));
+  }
+
+  void _resetMultiselectMode() {
+    setState(() {
+      selectedBookIds = {};
+    });
+  }
+
+  Padding? _buildMultiSelectFAB(SetThemeState state) {
+    return selectedBookIds.isNotEmpty ? Padding(
+        padding: const EdgeInsets.only(bottom: 50),
+        child: SpeedDial(
+          spacing: 3,
+          dialRoot: (ctx, open, toggleChildren) {
+            return FloatingActionButton(
+                onPressed: toggleChildren, child: const Icon(Icons.create));
+          },
+          childPadding: const EdgeInsets.all(5),
+          spaceBetweenChildren: 4,
+          children: [
+            SpeedDialChild(
+                child: const Icon(Icons.menu_book_outlined),
+                backgroundColor:
+                    Theme.of(context).colorScheme.secondaryContainer,
+                label: LocaleKeys.change_book_type.tr(),
+                onTap: () {
+                  showEditBookTypeBottomSheet(context, selectedBookIds);
+                }),
+          ],
+        )): null;
+  }
+
   BlocBuilder<ThemeBloc, ThemeState> _buildScaffoldBody() {
     return BlocBuilder<ThemeBloc, ThemeState>(
       builder: (context, state) {
@@ -656,6 +731,8 @@ class _BooksScreenState extends State<BooksScreen>
                           list: snapshot.data!,
                         ),
                         listNumber: 2,
+                        selectedBookIds: selectedBookIds,
+                        onBookSelected: _onItemSelected,
                       );
                     } else {
                       return BooksList(
@@ -664,6 +741,8 @@ class _BooksScreenState extends State<BooksScreen>
                           list: snapshot.data!,
                         ),
                         listNumber: 2,
+                        selectedBookIds: selectedBookIds,
+                        onBookSelected: _onItemSelected,
                       );
                     }
                   },
@@ -717,6 +796,8 @@ class _BooksScreenState extends State<BooksScreen>
                           list: snapshot.data!,
                         ),
                         listNumber: 1,
+                        selectedBookIds: selectedBookIds,
+                        onBookSelected: _onItemSelected,
                       );
                     } else {
                       return BooksList(
@@ -725,6 +806,8 @@ class _BooksScreenState extends State<BooksScreen>
                           list: snapshot.data!,
                         ),
                         listNumber: 1,
+                        selectedBookIds: selectedBookIds,
+                        onBookSelected: _onItemSelected,
                       );
                     }
                   },
@@ -778,6 +861,8 @@ class _BooksScreenState extends State<BooksScreen>
                           list: snapshot.data!,
                         ),
                         listNumber: 0,
+                        selectedBookIds: selectedBookIds,
+                        onBookSelected: _onItemSelected,
                       );
                     } else {
                       return BooksList(
@@ -786,6 +871,8 @@ class _BooksScreenState extends State<BooksScreen>
                           list: snapshot.data!,
                         ),
                         listNumber: 0,
+                        selectedBookIds: selectedBookIds,
+                        onBookSelected: _onItemSelected,
                       );
                     }
                   },

lib/ui/books_screen/helper/multi_select_helper.dart

@@ -0,0 +1,60 @@
+import 'package:easy_localization/easy_localization.dart';
+import 'package:flutter/cupertino.dart';
+import 'package:flutter/material.dart';
+
+import '../../../core/constants.dart/enums.dart';
+import '../../../generated/locale_keys.g.dart';
+import '../../../main.dart';
+import '../../add_book_screen/widgets/book_type_dropdown.dart';
+
+List<String> bookTypes = [
+  LocaleKeys.book_type_paper.tr(),
+  LocaleKeys.book_type_ebook.tr(),
+  LocaleKeys.book_type_audiobook.tr(),
+];
+
+showEditBookTypeBottomSheet(BuildContext context, Set<int> selectedBookIds) {
+  return showModalBottomSheet(
+      context: context,
+      builder: (context) {
+        return Padding(
+          padding:
+              const EdgeInsets.only(left: 20, right: 20, top: 20, bottom: 40),
+          child: Column(
+            mainAxisSize: MainAxisSize.min,
+            children: [
+              Text(
+                LocaleKeys.change_book_type.tr(),
+                style: const TextStyle(fontSize: 18, fontWeight: FontWeight.bold),
+              ),
+              const SizedBox(height: 20),
+              BookTypeDropdown(
+                bookType: BookType.paper,
+                bookTypes: bookTypes,
+                changeBookType: (bookType) {
+                  if (bookType == null) return;
+                  _updateBooks(bookType, selectedBookIds);
+                  Navigator.pop(context);
+                  ScaffoldMessenger.of(context).showSnackBar(
+                      SnackBar(content: Text(LocaleKeys.update_successful_message.tr())));
+                },
+              ),
+            ],
+          ),
+        );
+      });
+}
+
+void _updateBooks(String bookType, Set<int> selectedIds) async {
+  BookType selectedBookType = BookType.paper;
+  if (bookType == bookTypes[0]) {
+    selectedBookType = BookType.paper;
+  } else if (bookType == bookTypes[1]) {
+    selectedBookType = BookType.ebook;
+  } else if (bookType == bookTypes[2]) {
+    selectedBookType = BookType.audiobook;
+  } else {
+    selectedBookType = BookType.paper;
+  }
+  bookCubit.updateBookType(selectedIds, selectedBookType);
+}

lib/ui/books_screen/widgets/book_card.dart

@@ -17,12 +17,16 @@ class BookCard extends StatelessWidget {
     required this.onPressed,
     required this.heroTag,
     required this.addBottomPadding,
+    this.onLongPressed,
+    this.cardColor,
   }) : super(key: key);
 
   final Book book;
   final String heroTag;
   final bool addBottomPadding;
   final Function() onPressed;
+  final Function()? onLongPressed;
+  final Color? cardColor;
 
   Widget _buildSortAttribute() {
     return BlocBuilder<SortBloc, SortState>(
@@ -156,6 +160,7 @@ class BookCard extends StatelessWidget {
     return Padding(
       padding: EdgeInsets.fromLTRB(10, 0, 10, addBottomPadding ? 90 : 5),
       child: Card(
+        color: cardColor,
         shadowColor: Colors.transparent,
         shape: RoundedRectangleBorder(
           side: BorderSide(color: dividerColor, width: 1),
@@ -165,6 +170,7 @@ class BookCard extends StatelessWidget {
           borderRadius: BorderRadius.circular(cornerRadius),
           child: InkWell(
             onTap: onPressed,
+            onLongPress: onLongPressed,
             child: Padding(
               padding: const EdgeInsets.symmetric(vertical: 10, horizontal: 15),
               child: Row(

lib/ui/books_screen/widgets/book_grid_card.dart

@@ -9,17 +9,20 @@ class BookGridCard extends StatelessWidget {
     required this.onPressed,
     required this.heroTag,
     required this.addBottomPadding,
+    this.onLongPressed,
   }) : super(key: key);
 
   final Book book;
   final String heroTag;
   final bool addBottomPadding;
   final Function() onPressed;
+  final Function()? onLongPressed;
 
   @override
   Widget build(BuildContext context) {
     return InkWell(
       onTap: onPressed,
+      onLongPress: onLongPressed,
       child: book.cover != null
           ? ClipRRect(
               borderRadius: BorderRadius.circular(3),