feat(meta): Implement removing tracking items

lib/src/data/type.dart

@@ -17,6 +17,9 @@ enum MediumTrackingState {
 
 /// Interface for the Anime and Manga data classes
 abstract class TrackingMedium {
+  /// The ID of the medium
+  final String id = '';
+
   /// The title of the medium
   final String title = '';
 

lib/src/service/database.dart

@@ -76,6 +76,14 @@ class DatabaseService {
     );
   }
 
+  Future<void> deleteAnime(String id) async {
+    await _db.delete(
+      animeTable,
+      where: 'id = ?',
+      whereArgs: [id],
+    );
+  }
+  
   Future<void> addManga(MangaTrackingData data) async {
     await _db.insert(
       mangaTable,
@@ -91,4 +99,12 @@ class DatabaseService {
       whereArgs: [data.id],
     );
   }
+
+  Future<void> deleteManga(String id) async {
+    await _db.delete(
+      mangaTable,
+      where: 'id = ?',
+      whereArgs: [id],
+    );
+  }
 }

lib/src/ui/bloc/anime_list_bloc.dart

@@ -24,6 +24,8 @@ class AnimeListBloc extends Bloc<AnimeListEvent, AnimeListState> {
     on<MangaChapterDecrementedEvent>(_onMangaDecremented);
     on<AnimeUpdatedEvent>(_onAnimeUpdated);
     on<MangaUpdatedEvent>(_onMangaUpdated);
+    on<AnimeRemovedEvent>(_onAnimeRemoved);
+    on<MangaRemovedEvent>(_onMangaRemoved);
   }
 
   Future<void> _onAnimeAdded(AnimeAddedEvent event, Emitter<AnimeListState> emit) async {
@@ -206,4 +208,30 @@ class AnimeListBloc extends Bloc<AnimeListEvent, AnimeListState> {
       ),
     );
   }
+
+  Future<void> _onAnimeRemoved(AnimeRemovedEvent event, Emitter<AnimeListState> emit) async {
+    emit(
+      state.copyWith(
+        animes: List.from(
+          state.animes.where((anime) => anime.id != event.id),
+        ),
+      ),
+    );
+
+    // Update the database
+    await GetIt.I.get<DatabaseService>().deleteAnime(event.id);
+  }
+  
+  Future<void> _onMangaRemoved(MangaRemovedEvent event, Emitter<AnimeListState> emit) async {
+    emit(
+      state.copyWith(
+        mangas: List.from(
+          state.mangas.where((manga) => manga.id != event.id),
+        ),
+      ),
+    );
+
+    // Update the database
+    await GetIt.I.get<DatabaseService>().deleteManga(event.id);
+  }
 }

lib/src/ui/bloc/anime_list_event.dart

@@ -48,6 +48,13 @@ class AnimeUpdatedEvent extends AnimeListEvent {
   final AnimeTrackingData anime;
 }
 
+class AnimeRemovedEvent extends AnimeListEvent {
+  AnimeRemovedEvent(this.id);
+
+  /// The ID of the anime to be removed from the list.
+  final String id;
+}
+
 class MangaAddedEvent extends AnimeListEvent {
   MangaAddedEvent(this.data);
   
@@ -82,3 +89,10 @@ class MangaUpdatedEvent extends AnimeListEvent {
 
   final MangaTrackingData manga;
 }
+
+class MangaRemovedEvent extends AnimeListEvent {
+  MangaRemovedEvent(this.id);
+
+  /// The ID of the manga to be removed from the list.
+  final String id;
+}

lib/src/ui/bloc/details_bloc.dart

@@ -18,6 +18,7 @@ class DetailsBloc extends Bloc<DetailsEvent, DetailsState> {
     on<AnimeDetailsRequestedEvent>(_onAnimeRequested);
     on<MangaDetailsRequestedEvent>(_onMangaRequested);
     on<DetailsUpdatedEvent>(_onDetailsUpdated);
+    on<ItemRemovedEvent>(_onItemRemoved);
   }
 
   Future<void> _onAnimeRequested(AnimeDetailsRequestedEvent event, Emitter<DetailsState> emit) async {
@@ -77,4 +78,26 @@ class DetailsBloc extends Bloc<DetailsEvent, DetailsState> {
       );
     }
   }
+
+  Future<void> _onItemRemoved(ItemRemovedEvent event, Emitter<DetailsState> emit) async {
+    emit(
+      state.copyWith(
+        data: null,
+      ),
+    );
+
+    /// Remove the item from the database
+    final bloc = GetIt.I.get<AnimeListBloc>();
+    switch (event.trackingType) {
+      case TrackingMediumType.anime:
+        bloc.add(AnimeRemovedEvent(event.id));
+        break;
+      case TrackingMediumType.manga:
+        bloc.add(MangaRemovedEvent(event.id));
+        break;
+    }
+
+    // Navigate back
+    GetIt.I.get<NavigationBloc>().add(PoppedRouteEvent());
+  }
 }

lib/src/ui/bloc/details_event.dart

@@ -19,5 +19,15 @@ class MangaDetailsRequestedEvent extends DetailsEvent {
 class DetailsUpdatedEvent extends DetailsEvent {
   DetailsUpdatedEvent(this.data);
 
-  final dynamic data;
+  final TrackingMedium data;
+}
+
+class ItemRemovedEvent extends DetailsEvent {
+  ItemRemovedEvent(this.id, this.trackingType);
+
+  /// The ID of the item to be removed
+  final String id;
+
+  /// The type of medium of the item
+  final TrackingMediumType trackingType;
 }

lib/src/ui/pages/about.dart

@@ -1,16 +1,15 @@
-import 'dart:io';
 import 'package:anitrack/licenses.g.dart';
 import 'package:anitrack/src/ui/constants.dart';
 import 'package:flutter/material.dart';
 import 'package:url_launcher/url_launcher.dart';
 
 class AboutPage extends StatelessWidget {
-  AboutPage({
+  const AboutPage({
     super.key,
   });
 
   static MaterialPageRoute<dynamic> get route => MaterialPageRoute<dynamic>(
-    builder: (_) => AboutPage(),
+    builder: (_) => const AboutPage(),
     settings: const RouteSettings(
       name: aboutRoute,
     ),
@@ -20,7 +19,7 @@ class AboutPage extends StatelessWidget {
   Widget build(BuildContext context) {
     return Scaffold(
       appBar: AppBar(
-        title: Text('About'),
+        title: const Text('About'),
       ),
       body: ListView.builder(
         itemCount: ossLicenses.length + 1,
@@ -29,7 +28,6 @@ class AboutPage extends StatelessWidget {
             return Padding(
               padding: const EdgeInsets.all(16),
               child: Column(
-                crossAxisAlignment: CrossAxisAlignment.center,
                 mainAxisSize: MainAxisSize.min,
                 children: [
                   Text(
@@ -44,7 +42,7 @@ class AboutPage extends StatelessWidget {
                         mode: LaunchMode.externalApplication,
                       );
                     },
-                    child: Text('Source')
+                    child: const Text('Source'),
                   ),
                 ],
               ),

lib/src/ui/pages/anime_list.dart

@@ -101,7 +101,7 @@ class AnimeListPage extends StatelessWidget {
           drawer: Drawer(
             child: ListView(
               children: [
-                DrawerHeader(
+                const DrawerHeader(
                   decoration: BoxDecoration(
                     color: Color(0xffcf4aff),
                   ),
@@ -115,8 +115,8 @@ class AnimeListPage extends StatelessWidget {
                 ),
 
                 ListTile(
-                  leading: Icon(Icons.info),
+                  leading: const Icon(Icons.info),
-                  title: Text('About'),
+                  title: const Text('About'),
                   onTap: () {
                     Navigator.of(context).pushNamed(aboutRoute);
                   },

lib/src/ui/pages/details.dart

@@ -60,6 +60,48 @@ class DetailsPage extends StatelessWidget {
                               softWrap: true,
                               overflow: TextOverflow.ellipsis,
                             ),
+
+                            ElevatedButton(
+                              onPressed: () async {
+                                final result = await showDialog<bool>(
+                                  context: context,
+                                  builder: (context) {
+                                    return AlertDialog(
+                                      title: Text('Remove "${state.data!.title}"?'),
+                                      content: Text('Are you sure you want to remove "${state.data!.title}" from the list?'),
+                                      actions: [
+                                        TextButton(
+                                          onPressed: () {
+                                            Navigator.of(context).pop(true);
+                                          },
+                                          style: TextButton.styleFrom(
+                                            foregroundColor: Colors.red,
+                                          ),
+                                          child: const Text('Remove'),
+                                        ),
+                                        TextButton(
+                                          onPressed: () {
+                                            Navigator.of(context).pop(false);
+                                          },
+                                          child: const Text('Cancel'),
+                                        ),
+                                      ],
+                                    );
+                                  },
+                                );
+
+                                if (result != true) return;
+
+                                // ignore: use_build_context_synchronously
+                                context.read<DetailsBloc>().add(
+                                  ItemRemovedEvent(
+                                    state.data!.id,
+                                    state.trackingType,
+                                  ),
+                                );
+                              },
+                              child: const Icon(Icons.delete),
+                            ),
                           ],
                         ),
                       ),
@@ -79,7 +121,7 @@ class DetailsPage extends StatelessWidget {
                       if (state.trackingType == TrackingMediumType.anime) {
                         context.read<DetailsBloc>().add(
                           DetailsUpdatedEvent(
-                            (state.data as AnimeTrackingData).copyWith(
+                            (state.data! as AnimeTrackingData).copyWith(
                               state: newState,
                             ),
                           ),
@@ -87,7 +129,7 @@ class DetailsPage extends StatelessWidget {
                       } else if (state.trackingType == TrackingMediumType.manga) {
                         context.read<DetailsBloc>().add(
                           DetailsUpdatedEvent(
-                            (state.data as MangaTrackingData).copyWith(
+                            (state.data! as MangaTrackingData).copyWith(
                               state: newState,
                             ),
                           ),
@@ -127,7 +169,7 @@ class DetailsPage extends StatelessWidget {
                     onChanged: (value) {
                       switch (state.trackingType) {
                         case TrackingMediumType.anime:
-                          final data = state.data as AnimeTrackingData;
+                          final data = state.data! as AnimeTrackingData;
                           context.read<DetailsBloc>().add(
                             DetailsUpdatedEvent(
                               data.copyWith(
@@ -137,7 +179,7 @@ class DetailsPage extends StatelessWidget {
                           );
                           break;
                         case TrackingMediumType.manga:
-                          final data = state.data as MangaTrackingData;
+                          final data = state.data! as MangaTrackingData;
                           context.read<DetailsBloc>().add(
                             DetailsUpdatedEvent(
                               data.copyWith(
@@ -149,8 +191,8 @@ class DetailsPage extends StatelessWidget {
                       }
                     },
                     initialValue: state.trackingType == TrackingMediumType.anime ?
-                      (state.data as AnimeTrackingData).episodesWatched :
+                      (state.data! as AnimeTrackingData).episodesWatched :
-                      (state.data as MangaTrackingData).chaptersRead,
+                      (state.data! as MangaTrackingData).chaptersRead,
                   ),
                 ),
                 
@@ -162,7 +204,7 @@ class DetailsPage extends StatelessWidget {
                     child: IntegerInput(
                       labelText: 'Volumes owned',
                       onChanged: (value) {
-                        final data = state.data as MangaTrackingData;
+                        final data = state.data! as MangaTrackingData;
                         context.read<DetailsBloc>().add(
                           DetailsUpdatedEvent(
                             data.copyWith(
@@ -171,7 +213,7 @@ class DetailsPage extends StatelessWidget {
                           ),
                         );
                       },
-                      initialValue: (GetIt.I.get<DetailsBloc>().state.data as MangaTrackingData).volumesOwned,
+                      initialValue: (GetIt.I.get<DetailsBloc>().state.data! as MangaTrackingData).volumesOwned,
                     ),
                   ),
               ],

pubspec.yaml

@@ -19,9 +19,9 @@ dependencies:
   get_it: ^7.2.0
   jikan_api: ^2.0.0
   json_annotation: 4.6.0
-  url_launcher: ^6.1.8
   sqflite: ^2.2.4+1
   swipeable_tile: ^2.0.0+3
+  url_launcher: ^6.1.8
 
 dev_dependencies:
   build_runner: ^2.1.11