v0.2.26 (#63)

* added integration test.

* replace listview with listview.builder

* added cache.

* bumped version.

* bumped version.

* updated github action.

* bumped version.

* fixed time machine cubit.

* fixed time machine cubit.

* reverted changes.

* removed keepAliveMixin

.github/workflows/github-actions.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     env:
       JAVA_VERSION: "11.0"
-      FLUTTER_VERSION: "3.0.0"
+      FLUTTER_VERSION: "3.0.3"
     steps:
       - uses: actions/checkout@v2
       - uses: actions/setup-java@v2
@@ -20,7 +20,7 @@ jobs:
           java-version: '17'
       - uses: subosito/flutter-action@v2
         with:
-          flutter-version: '3.0.0'
+          flutter-version: '3.0.3'
           channel: 'stable'
       - run: flutter pub get
       - run: flutter analyze

android/app/build.gradle

@@ -33,7 +33,7 @@ if (keystorePropertiesFile.exists()) {
 
 
 android {
-    compileSdkVersion 31
+    compileSdkVersion 32
 
     compileOptions {
         sourceCompatibility JavaVersion.VERSION_1_8
@@ -49,10 +49,9 @@ android {
     }
 
     defaultConfig {
-        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
         applicationId "com.jiaqifeng.hacki"
         minSdkVersion 26
-        targetSdkVersion 30
+        targetSdkVersion 32
         versionCode flutterVersionCode.toInteger()
         versionName flutterVersionName
     }
@@ -78,5 +77,5 @@ flutter {
 }
 
 dependencies {
-    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlin_version"
 }

android/app/src/main/AndroidManifest.xml

@@ -16,8 +16,10 @@
     </queries>
 
    <application
-        android:label="hacki"
+        android:label="Hacki"
         android:icon="@mipmap/ic_launcher"
+        android:allowBackup="true"
+        android:fullBackupContent="@xml/backup_rules"
         android:usesCleartextTraffic="true">
         <activity
             android:name=".MainActivity"
@@ -25,6 +27,7 @@
             android:theme="@style/LaunchTheme"
             android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
             android:hardwareAccelerated="true"
+            android:exported="true"
             android:windowSoftInputMode="adjustResize">
             <!-- Specifies an Android theme to apply to this Activity as soon as
                  the Android process has started. This theme is visible to the user

android/app/src/main/res/xml/backup_rules.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<full-backup-content>
+    <exclude domain="sharedpref" path="FlutterSecureStorage"/>
+</full-backup-content>

android/build.gradle

@@ -1,12 +1,12 @@
 buildscript {
-    ext.kotlin_version = '1.6.10'
+    ext.kotlin_version = '1.7.0'
     repositories {
         google()
         mavenCentral()
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:7.1.1'
+        classpath 'com.android.tools.build:gradle:7.1.3'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
     }
 }

fastlane/metadata/android/en-US/changelogs/22.txt

@@ -1 +0,0 @@
-- Bugfixes.

fastlane/metadata/android/en-US/changelogs/23.txt

@@ -1 +0,0 @@
-- Updates to UI.

fastlane/metadata/android/en-US/changelogs/24.txt

@@ -1 +0,0 @@
-- Updates to UI.

fastlane/metadata/android/en-US/changelogs/25.txt

@@ -1 +0,0 @@
-- Updates to UI.

fastlane/metadata/android/en-US/changelogs/26.txt

@@ -1 +0,0 @@
-- Tapping on comments in notification and history screen will lead you directly to the comment.

fastlane/metadata/android/en-US/changelogs/27.txt

@@ -1,3 +0,0 @@
-- Tapping on comment in notification or history screen will now lead you directly to the comment.
-- Fixed the bug where reply box cannot be expanded in editing mode.
-- Fixed inconsistent font size in history screen.

fastlane/metadata/android/en-US/changelogs/28.txt

@@ -1 +0,0 @@
-- Added offline mode.

fastlane/metadata/android/en-US/changelogs/29.txt

@@ -1,2 +0,0 @@
-- Added offline mode.
-- Bugfixes.

fastlane/metadata/android/en-US/changelogs/30.txt

@@ -1,2 +0,0 @@
-- Added offline mode.
-- Bugfixes.

fastlane/metadata/android/en-US/changelogs/31.txt

@@ -1,2 +0,0 @@
-- Added offline mode.
-- Bugfixes.

fastlane/metadata/android/en-US/changelogs/34.txt

@@ -1,3 +0,0 @@
-- Pick up where you left off.
-- Swipe left on comment tile to view its parents without scrolling all the way up.
-- Huge performance boost.

fastlane/metadata/android/en-US/changelogs/35.txt

@@ -1,3 +0,0 @@
-- Pick up where you left off.
-- Swipe left on comment tile to view its parents without scrolling all the way up.
-- Huge performance boost.

fastlane/metadata/android/en-US/changelogs/36.txt

@@ -1,3 +0,0 @@
-- Pick up where you left off.
-- Swipe left on comment tile to view its parents without scrolling all the way up.
-- Huge performance boost.

fastlane/metadata/android/en-US/changelogs/37.txt

@@ -1,4 +0,0 @@
-- You can now participate in polls.
-- Pick up where you left off.
-- Swipe left on comment tile to view its parents without scrolling all the way up.
-- Huge performance boost.

fastlane/metadata/android/en-US/changelogs/38.txt

@@ -1,4 +0,0 @@
-- You can now participate in polls.
-- Pick up where you left off.
-- Swipe left on comment tile to view its parents without scrolling all the way up.
-- Huge performance boost.

fastlane/metadata/android/en-US/changelogs/39.txt

@@ -1,4 +0,0 @@
-- You can now participate in polls.
-- Pick up where you left off.
-- Swipe left on comment tile to view its parents without scrolling all the way up.
-- Huge performance boost.

fastlane/metadata/android/en-US/changelogs/40.txt

@@ -1,4 +0,0 @@
-- You can now participate in polls.
-- Pick up where you left off.
-- Swipe left on comment tile to view its parents without scrolling all the way up.
-- Huge performance boost.

fastlane/metadata/android/en-US/changelogs/41.txt

@@ -1,4 +0,0 @@
-- You can now participate in polls.
-- Pick up where you left off.
-- Swipe left on comment tile to view its parents without scrolling all the way up.
-- Huge performance boost.

fastlane/metadata/android/en-US/changelogs/42.txt

@@ -1,4 +0,0 @@
-- You can now participate in polls.
-- Pick up where you left off.
-- Swipe left on comment tile to view its parents without scrolling all the way up.
-- Huge performance boost.

fastlane/metadata/android/en-US/changelogs/43.txt

@@ -1,4 +0,0 @@
-- You can now participate in polls.
-- Pick up where you left off.
-- Swipe left on comment tile to view its parents without scrolling all the way up.
-- Huge performance boost.

fastlane/metadata/android/en-US/changelogs/44.txt

@@ -1,4 +0,0 @@
-- You can now participate in polls.
-- Pick up where you left off.
-- Swipe left on comment tile to view its parents without scrolling all the way up.
-- Huge performance boost.

fastlane/metadata/android/en-US/changelogs/45.txt

@@ -1,4 +0,0 @@
-- You can now participate in polls.
-- Pick up where you left off.
-- Swipe left on comment tile to view its parents without scrolling all the way up.
-- Huge performance boost.

fastlane/metadata/android/en-US/changelogs/46.txt

@@ -1,4 +0,0 @@
-- You can now participate in polls.
-- Pick up where you left off.
-- Swipe left on comment tile to view its parents without scrolling all the way up.
-- Huge performance boost.

fastlane/metadata/android/en-US/changelogs/47.txt

@@ -1,4 +0,0 @@
-- You can now participate in polls.
-- Pick up where you left off.
-- Swipe left on comment tile to view its parents without scrolling all the way up.
-- Huge performance boost.

fastlane/metadata/android/en-US/changelogs/48.txt

@@ -1,4 +0,0 @@
-- You can now participate in polls.
-- Pick up where you left off.
-- Swipe left on comment tile to view its parents without scrolling all the way up.
-- Huge performance boost.

fastlane/metadata/android/en-US/changelogs/49.txt

@@ -1,4 +0,0 @@
-- You can now participate in polls.
-- Pick up where you left off.
-- Swipe left on comment tile to view its parents without scrolling all the way up.
-- Huge performance boost.

fastlane/metadata/android/en-US/changelogs/50.txt

@@ -1,4 +0,0 @@
-- You can now participate in polls.
-- Pick up where you left off.
-- Swipe left on comment tile to view its parents without scrolling all the way up.
-- Huge performance boost.

fastlane/metadata/android/en-US/changelogs/51.txt

@@ -1,4 +0,0 @@
-- You can now participate in polls.
-- Pick up where you left off.
-- Swipe left on comment tile to view its parents without scrolling all the way up.
-- Huge performance boost.

fastlane/metadata/android/en-US/changelogs/52.txt

@@ -1,5 +0,0 @@
-- You can now participate in polls.
-- Pick up where you left off.
-- Swipe left on comment tile to view its parents without scrolling all the way up.
-- Huge performance boost.
-- Bugfixes.

fastlane/metadata/android/en-US/changelogs/53.txt

@@ -1,6 +0,0 @@
-- You can now add filters for searching.
-- You can now participate in polls.
-- Pick up where you left off.
-- Swipe left on comment tile to view its parents without scrolling all the way up.
-- Huge performance boost.
-- Bugfixes.

fastlane/metadata/android/en-US/changelogs/54.txt

@@ -1,6 +0,0 @@
-- You can now add filters for searching.
-- You can now participate in polls.
-- Pick up where you left off.
-- Swipe left on comment tile to view its parents without scrolling all the way up.
-- Huge performance boost.
-- Bugfixes.

fastlane/metadata/android/en-US/changelogs/55.txt

@@ -1,6 +0,0 @@
-- You can now add filters for searching.
-- You can now participate in polls.
-- Pick up where you left off.
-- Swipe left on comment tile to view its parents without scrolling all the way up.
-- Huge performance boost.
-- Bugfixes.

fastlane/metadata/android/en-US/changelogs/56.txt

@@ -1,6 +0,0 @@
-- You can now add filters for searching.
-- You can now participate in polls.
-- Pick up where you left off.
-- Swipe left on comment tile to view its parents without scrolling all the way up.
-- Huge performance boost.
-- Bugfixes.

fastlane/metadata/android/en-US/changelogs/57.txt

@@ -1,7 +0,0 @@
-- You can share links.
-- You can now add filters for searching.
-- You can now participate in polls.
-- Pick up where you left off.
-- Swipe left on comment tile to view its parents without scrolling all the way up.
-- Huge performance boost.
-- Bugfixes.

fastlane/metadata/android/en-US/changelogs/63.txt

@@ -0,0 +1,2 @@
+- Offline mode now includes web pages.
+- You can now sort comments in story screen.

fastlane/metadata/android/en-US/changelogs/64.txt

@@ -0,0 +1,2 @@
+- Offline mode now includes web pages.
+- You can now sort comments in story screen.

fastlane/metadata/android/en-US/changelogs/65.txt

@@ -0,0 +1,2 @@
+- Offline mode now includes web pages.
+- You can now sort comments in story screen.

fastlane/metadata/android/en-US/changelogs/66.txt

@@ -0,0 +1,2 @@
+- Offline mode now includes web pages.
+- You can now sort comments in story screen.

fastlane/metadata/android/en-US/changelogs/67.txt

@@ -0,0 +1,2 @@
+- Offline mode now includes web pages.
+- You can now sort comments in story screen.

fastlane/metadata/android/en-US/changelogs/68.txt

@@ -0,0 +1,2 @@
+- Offline mode now includes web pages.
+- You can now sort comments in story screen.

integration_test/app_test.dart

@@ -0,0 +1,46 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:hacki/main.dart' as app;
+import 'package:hacki/screens/widgets/story_tile.dart';
+import 'package:integration_test/integration_test.dart';
+
+void main() {
+  IntegrationTestWidgetsFlutterBinding.ensureInitialized();
+
+  group('performance test', () {
+    testWidgets('scrolling performance on ItemScreen',
+        (WidgetTester tester) async {
+      await app.main(testing: true);
+      await tester.pump();
+
+      final Finder bestStoryTabFinder = find.text('BEST');
+
+      await tester.tap(bestStoryTabFinder);
+      await tester.pumpAndSettle(const Duration(seconds: 3));
+
+      final Finder storyTileFinder = find.byType(StoryTile);
+
+      await tester.tap(storyTileFinder.first);
+      await tester.pumpAndSettle(const Duration(seconds: 3));
+
+      TestGesture gesture = await tester.startGesture(const Offset(0, 300));
+      await gesture.moveBy(const Offset(0, -300));
+      await tester.pump();
+
+      gesture = await tester.startGesture(const Offset(0, 300));
+      await gesture.moveBy(const Offset(0, -300));
+      await tester.pump();
+
+      gesture = await tester.startGesture(const Offset(0, 300));
+      await gesture.moveBy(const Offset(0, -300));
+      await tester.pump();
+
+      gesture = await tester.startGesture(const Offset(0, 300));
+      await gesture.moveBy(const Offset(0, 900));
+      await tester.pump();
+
+      gesture = await tester.startGesture(const Offset(0, 300));
+      await gesture.moveBy(const Offset(0, -900));
+      await tester.pump();
+    });
+  });
+}

ios/Podfile.lock

@@ -19,6 +19,8 @@ PODS:
   - FMDB (2.7.5):
     - FMDB/standard (= 2.7.5)
   - FMDB/standard (2.7.5)
+  - integration_test (0.0.1):
+    - Flutter
   - OrderedSet (5.0.0)
   - path_provider_ios (0.0.1):
     - Flutter
@@ -50,6 +52,7 @@ DEPENDENCIES:
   - flutter_local_notifications (from `.symlinks/plugins/flutter_local_notifications/ios`)
   - flutter_secure_storage (from `.symlinks/plugins/flutter_secure_storage/ios`)
   - flutter_siri_suggestions (from `.symlinks/plugins/flutter_siri_suggestions/ios`)
+  - integration_test (from `.symlinks/plugins/integration_test/ios`)
   - path_provider_ios (from `.symlinks/plugins/path_provider_ios/ios`)
   - receive_sharing_intent (from `.symlinks/plugins/receive_sharing_intent/ios`)
   - share_plus (from `.symlinks/plugins/share_plus/ios`)
@@ -80,6 +83,8 @@ EXTERNAL SOURCES:
     :path: ".symlinks/plugins/flutter_secure_storage/ios"
   flutter_siri_suggestions:
     :path: ".symlinks/plugins/flutter_siri_suggestions/ios"
+  integration_test:
+    :path: ".symlinks/plugins/integration_test/ios"
   path_provider_ios:
     :path: ".symlinks/plugins/path_provider_ios/ios"
   receive_sharing_intent:
@@ -109,6 +114,7 @@ SPEC CHECKSUMS:
   flutter_secure_storage: 7953c38a04c3fdbb00571bcd87d8e3b5ceb9daec
   flutter_siri_suggestions: 226fb7ef33d25d3fe0d4aa2a8bcf4b72730c466f
   FMDB: 2ce00b547f966261cd18927a3ddb07cb6f3db82a
+  integration_test: a1e7d09bd98eca2fc37aefd79d4f41ad37bdbbe5
   OrderedSet: aaeb196f7fef5a9edf55d89760da9176ad40b93c
   path_provider_ios: 14f3d2fd28c4fdb42f44e0f751d12861c43cee02
   ReachabilitySwift: 985039c6f7b23a1da463388634119492ff86c825

ios/Runner.xcodeproj/project.pbxproj

@@ -568,7 +568,7 @@
 				CODE_SIGN_ENTITLEMENTS = Runner/Runner.entitlements;
 				CODE_SIGN_IDENTITY = "Apple Development";
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 3;
+				CURRENT_PROJECT_VERSION = 2;
 				DEVELOPMENT_TEAM = QMWX3X2NF7;
 				ENABLE_BITCODE = NO;
 				INFOPLIST_FILE = Runner/Info.plist;
@@ -577,7 +577,7 @@
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
-				MARKETING_VERSION = 0.2.20;
+				MARKETING_VERSION = 0.2.26;
 				PRODUCT_BUNDLE_IDENTIFIER = com.jiaqi.hacki;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				PROVISIONING_PROFILE_SPECIFIER = "";
@@ -705,7 +705,7 @@
 				CODE_SIGN_ENTITLEMENTS = Runner/Runner.entitlements;
 				CODE_SIGN_IDENTITY = "Apple Development";
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 3;
+				CURRENT_PROJECT_VERSION = 2;
 				DEVELOPMENT_TEAM = QMWX3X2NF7;
 				ENABLE_BITCODE = NO;
 				INFOPLIST_FILE = Runner/Info.plist;
@@ -714,7 +714,7 @@
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
-				MARKETING_VERSION = 0.2.20;
+				MARKETING_VERSION = 0.2.26;
 				PRODUCT_BUNDLE_IDENTIFIER = com.jiaqi.hacki;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				PROVISIONING_PROFILE_SPECIFIER = "";
@@ -736,7 +736,7 @@
 				CODE_SIGN_ENTITLEMENTS = Runner/Runner.entitlements;
 				CODE_SIGN_IDENTITY = "Apple Development";
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 3;
+				CURRENT_PROJECT_VERSION = 2;
 				DEVELOPMENT_TEAM = QMWX3X2NF7;
 				ENABLE_BITCODE = NO;
 				INFOPLIST_FILE = Runner/Info.plist;
@@ -745,7 +745,7 @@
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
-				MARKETING_VERSION = 0.2.20;
+				MARKETING_VERSION = 0.2.26;
 				PRODUCT_BUNDLE_IDENTIFIER = com.jiaqi.hacki;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				PROVISIONING_PROFILE_SPECIFIER = "";

lib/blocs/stories/stories_bloc.dart

@@ -7,7 +7,9 @@ import 'package:hacki/config/locator.dart';
 import 'package:hacki/cubits/cubits.dart';
 import 'package:hacki/models/models.dart';
 import 'package:hacki/repositories/repositories.dart';
+import 'package:logger/logger.dart';
 import 'package:responsive_builder/responsive_builder.dart';
+import 'package:rxdart/rxdart.dart';
 
 part 'stories_event.dart';
 part 'stories_state.dart';
@@ -15,15 +17,18 @@ part 'stories_state.dart';
 class StoriesBloc extends Bloc<StoriesEvent, StoriesState> {
   StoriesBloc({
     required PreferenceCubit preferenceCubit,
-    CacheRepository? cacheRepository,
+    OfflineRepository? offlineRepository,
     StoriesRepository? storiesRepository,
     PreferenceRepository? preferenceRepository,
+    Logger? logger,
   })  : _preferenceCubit = preferenceCubit,
-        _cacheRepository = cacheRepository ?? locator.get<CacheRepository>(),
+        _offlineRepository =
+            offlineRepository ?? locator.get<OfflineRepository>(),
         _storiesRepository =
             storiesRepository ?? locator.get<StoriesRepository>(),
         _preferenceRepository =
             preferenceRepository ?? locator.get<PreferenceRepository>(),
+        _logger = logger ?? locator.get<Logger>(),
         super(const StoriesState.init()) {
     on<StoriesInitialize>(onInitialize);
     on<StoriesRefresh>(onRefresh);
@@ -39,9 +44,10 @@ class StoriesBloc extends Bloc<StoriesEvent, StoriesState> {
   }
 
   final PreferenceCubit _preferenceCubit;
-  final CacheRepository _cacheRepository;
+  final OfflineRepository _offlineRepository;
   final StoriesRepository _storiesRepository;
   final PreferenceRepository _preferenceRepository;
+  final Logger _logger;
   DeviceScreenType? deviceScreenType;
   StreamSubscription<PreferenceState>? _streamSubscription;
   static const int _smallPageSize = 10;
@@ -71,7 +77,7 @@ class StoriesBloc extends Bloc<StoriesEvent, StoriesState> {
         add(StoriesPageSizeChanged(pageSize: pageSize));
       }
     });
-    final bool hasCachedStories = await _cacheRepository.hasCachedStories;
+    final bool hasCachedStories = await _offlineRepository.hasCachedStories;
     final bool isComplexTile = _preferenceCubit.state.showComplexStoryTile;
     final int pageSize = _getPageSize(isComplexTile: isComplexTile);
     emit(
@@ -90,13 +96,13 @@ class StoriesBloc extends Bloc<StoriesEvent, StoriesState> {
     required Emitter<StoriesState> emit,
   }) async {
     if (state.offlineReading) {
-      final List<int> ids = await _cacheRepository.getCachedStoryIds(of: of);
+      final List<int> ids = await _offlineRepository.getCachedStoryIds(of: of);
       emit(
         state
             .copyWithStoryIdsUpdated(of: of, to: ids)
             .copyWithCurrentPageUpdated(of: of, to: 0),
       );
-      _cacheRepository
+      _offlineRepository
           .getCachedStoriesStream(
         ids: ids.sublist(0, min(ids.length, state.currentPageSize)),
       )
@@ -167,7 +173,7 @@ class StoriesBloc extends Bloc<StoriesEvent, StoriesState> {
       }
 
       if (state.offlineReading) {
-        _cacheRepository
+        _offlineRepository
             .getCachedStoriesStream(
           ids: state.storyIdsByType[event.type]!.sublist(
             lower,
@@ -241,9 +247,9 @@ class StoriesBloc extends Bloc<StoriesEvent, StoriesState> {
       ),
     );
 
-    await _cacheRepository.deleteAllStoryIds();
-    await _cacheRepository.deleteAllStories();
-    await _cacheRepository.deleteAllComments();
+    await _offlineRepository.deleteAllStoryIds();
+    await _offlineRepository.deleteAllStories();
+    await _offlineRepository.deleteAllComments();
 
     final Set<int> prioritizedIds = <int>{};
     final List<StoryType> prioritizedTypes = <StoryType>[...types]
@@ -251,7 +257,7 @@ class StoriesBloc extends Bloc<StoriesEvent, StoriesState> {
 
     for (final StoryType type in prioritizedTypes) {
       final List<int> ids = await _storiesRepository.fetchStoryIds(of: type);
-      await _cacheRepository.cacheStoryIds(of: type, ids: ids);
+      await _offlineRepository.cacheStoryIds(of: type, ids: ids);
       prioritizedIds.addAll(ids);
     }
 
@@ -273,7 +279,7 @@ class StoriesBloc extends Bloc<StoriesEvent, StoriesState> {
       final List<int> ids = await _storiesRepository.fetchStoryIds(
         of: StoryType.latest,
       );
-      await _cacheRepository.cacheStoryIds(of: StoryType.latest, ids: ids);
+      await _offlineRepository.cacheStoryIds(of: StoryType.latest, ids: ids);
       latestIds.addAll(ids);
 
       await fetchAndCacheStories(
@@ -281,12 +287,6 @@ class StoriesBloc extends Bloc<StoriesEvent, StoriesState> {
         includingWebPage: event.includingWebPage,
         isPrioritized: false,
       );
-
-      emit(
-        state.copyWith(
-          downloadStatus: StoriesDownloadStatus.finished,
-        ),
-      );
     } catch (_) {
       emit(
         state.copyWith(
@@ -318,44 +318,53 @@ class StoriesBloc extends Bloc<StoriesEvent, StoriesState> {
         continue;
       }
 
-      await _cacheRepository.cacheStory(story: story);
+      await _offlineRepository.cacheStory(story: story);
 
       if (story.url.isNotEmpty && includingWebPage) {
-        await _cacheRepository.cacheUrl(url: story.url);
+        _logger.i('downloading ${story.url}');
+        await _offlineRepository.cacheUrl(url: story.url);
       }
 
-      final Completer<void> completer = Completer<void>();
       _storiesRepository
           .fetchAllChildrenComments(ids: story.kids)
-          .listen((Comment? comment) async {
-        if (comment != null) {
-          await _cacheRepository.cacheComment(comment: comment);
-        }
-      }).onDone(() {
-        completer.complete();
-        add(StoryDownloaded(skipped: false));
-      });
-
-      await completer.future;
+          .whereType<Comment>()
+          .listen(
+            (Comment comment) => unawaited(
+              _offlineRepository.cacheComment(comment: comment),
+            ),
+          )
+          .onDone(() => add(StoryDownloaded(skipped: false)));
     }
   }
 
   void onStoryDownloaded(StoryDownloaded event, Emitter<StoriesState> emit) {
     if (event.skipped) {
+      final int updatedStoriesToBeDownloaded = state.storiesToBeDownloaded - 1;
+
       emit(
         state.copyWith(
-          storiesToBeDownloaded: state.storiesToBeDownloaded - 1,
+          storiesToBeDownloaded: updatedStoriesToBeDownloaded,
+          downloadStatus:
+              state.storiesDownloaded == updatedStoriesToBeDownloaded
+                  ? StoriesDownloadStatus.finished
+                  : null,
         ),
       );
     } else {
       final int updatedStoriesDownloaded = state.storiesDownloaded + 1;
+      final int updatedStoriesToBeDownloaded =
+          updatedStoriesDownloaded > state.storiesToBeDownloaded
+              ? state.storiesToBeDownloaded + 1
+              : state.storiesToBeDownloaded;
+
       emit(
         state.copyWith(
           storiesDownloaded: updatedStoriesDownloaded,
-          storiesToBeDownloaded:
-              updatedStoriesDownloaded > state.storiesToBeDownloaded
-                  ? state.storiesToBeDownloaded + 1
-                  : state.storiesToBeDownloaded,
+          storiesToBeDownloaded: updatedStoriesToBeDownloaded,
+          downloadStatus:
+              updatedStoriesDownloaded == updatedStoriesToBeDownloaded
+                  ? StoriesDownloadStatus.finished
+                  : null,
         ),
       );
     }
@@ -373,10 +382,10 @@ class StoriesBloc extends Bloc<StoriesEvent, StoriesState> {
     StoriesExitOffline event,
     Emitter<StoriesState> emit,
   ) async {
-    await _cacheRepository.deleteAllStoryIds();
-    await _cacheRepository.deleteAllStories();
-    await _cacheRepository.deleteAllComments();
-    await _cacheRepository.deleteAllWebPages();
+    await _offlineRepository.deleteAllStoryIds();
+    await _offlineRepository.deleteAllStories();
+    await _offlineRepository.deleteAllComments();
+    await _offlineRepository.deleteAllWebPages();
     emit(state.copyWith(offlineReading: false));
     add(StoriesInitialize());
   }

lib/config/custom_log_filter.dart

@@ -0,0 +1,31 @@
+import 'package:logger/logger.dart';
+
+class CustomLogFilter extends LogFilter {
+  @override
+  // ignore: overridden_fields
+  Level? level = Level.verbose;
+
+  /// The minimal level allowed in production.
+  static const Level _minimalLevel = Level.info;
+
+  @override
+  bool shouldLog(LogEvent event) {
+    bool shouldLog = false;
+
+    if (event.level.index >= _minimalLevel.index) {
+      return true;
+    }
+
+    assert(
+      () {
+        if (event.level.index >= level!.index) {
+          shouldLog = true;
+        }
+        return true;
+      }(),
+      '',
+    );
+
+    return shouldLog;
+  }
+}

lib/config/custom_router.dart

@@ -10,8 +10,8 @@ class CustomRouter {
     switch (settings.name) {
       case HomeScreen.routeName:
         return HomeScreen.route();
-      case StoryScreen.routeName:
-        return StoryScreen.route(settings.arguments! as StoryScreenArgs);
+      case ItemScreen.routeName:
+        return ItemScreen.route(settings.arguments! as ItemScreenArgs);
       case SubmitScreen.routeName:
         return SubmitScreen.route();
       default:
@@ -22,8 +22,8 @@ class CustomRouter {
   /// Nested routing for bottom navigation bar.
   static Route<dynamic> onGenerateNestedRoute(RouteSettings settings) {
     switch (settings.name) {
-      case StoryScreen.routeName:
-        return StoryScreen.route(settings.arguments! as StoryScreenArgs);
+      case ItemScreen.routeName:
+        return ItemScreen.route(settings.arguments! as ItemScreenArgs);
       case SubmitScreen.routeName:
         return SubmitScreen.route();
       default:

lib/config/locator.dart

@@ -1,5 +1,6 @@
 import 'package:flutter/material.dart';
 import 'package:get_it/get_it.dart';
+import 'package:hacki/config/custom_log_filter.dart';
 import 'package:hacki/repositories/repositories.dart';
 import 'package:hacki/services/services.dart';
 import 'package:logger/logger.dart';
@@ -10,16 +11,17 @@ final GetIt locator = GetIt.instance;
 /// Set up [GetIt] locator.
 Future<void> setUpLocator() async {
   locator
+    ..registerSingleton<Logger>(Logger(filter: CustomLogFilter()))
     ..registerSingleton<StoriesRepository>(StoriesRepository())
     ..registerSingleton<PreferenceRepository>(PreferenceRepository())
     ..registerSingleton<SearchRepository>(SearchRepository())
     ..registerSingleton<AuthRepository>(AuthRepository())
     ..registerSingleton<PostRepository>(PostRepository())
     ..registerSingleton<SembastRepository>(SembastRepository())
-    ..registerSingleton<CacheRepository>(CacheRepository())
-    ..registerSingleton<CacheService>(CacheService())
+    ..registerSingleton<OfflineRepository>(OfflineRepository())
+    ..registerSingleton<DraftCache>(DraftCache())
+    ..registerSingleton<CommentCache>(CommentCache())
     ..registerSingleton<LocalNotification>(LocalNotification())
-    ..registerSingleton<Logger>(Logger())
     ..registerSingleton<RouteObserver<ModalRoute<dynamic>>>(
       RouteObserver<ModalRoute<dynamic>>(),
     );

lib/cubits/collapse/collapse_cubit.dart

@@ -10,31 +10,31 @@ part 'collapse_state.dart';
 class CollapseCubit extends Cubit<CollapseState> {
   CollapseCubit({
     required int commentId,
-    CacheService? cacheService,
+    CollapseCache? collapseCache,
   })  : _commentId = commentId,
-        _cacheService = cacheService ?? locator.get<CacheService>(),
+        _collapseCache = collapseCache ?? locator.get<CollapseCache>(),
         super(const CollapseState.init());
 
   final int _commentId;
-  final CacheService _cacheService;
+  final CollapseCache _collapseCache;
   late final StreamSubscription<Map<int, Set<int>>> _streamSubscription;
 
   void init() {
     _streamSubscription =
-        _cacheService.hiddenComments.listen(hiddenCommentsStreamListener);
+        _collapseCache.hiddenComments.listen(hiddenCommentsStreamListener);
 
     emit(
       state.copyWith(
-        collapsedCount: _cacheService.totalHidden(_commentId),
-        collapsed: _cacheService.isCollapsed(_commentId),
-        hidden: _cacheService.isHidden(_commentId),
+        collapsedCount: _collapseCache.totalHidden(_commentId),
+        collapsed: _collapseCache.isCollapsed(_commentId),
+        hidden: _collapseCache.isHidden(_commentId),
       ),
     );
   }
 
   void collapse() {
     if (state.collapsed) {
-      _cacheService.uncollapse(_commentId);
+      _collapseCache.uncollapse(_commentId);
 
       emit(
         state.copyWith(
@@ -43,7 +43,7 @@ class CollapseCubit extends Cubit<CollapseState> {
         ),
       );
     } else {
-      final int count = _cacheService.collapse(_commentId);
+      final int count = _collapseCache.collapse(_commentId);
 
       emit(
         state.copyWith(

lib/cubits/comments/comments_cubit.dart

@@ -3,32 +3,39 @@ import 'dart:async';
 import 'package:bloc/bloc.dart';
 import 'package:collection/collection.dart';
 import 'package:equatable/equatable.dart';
+import 'package:flutter/services.dart';
 import 'package:flutter_linkify/flutter_linkify.dart';
 import 'package:hacki/config/locator.dart';
+import 'package:hacki/main.dart';
 import 'package:hacki/models/models.dart';
 import 'package:hacki/repositories/repositories.dart';
+import 'package:hacki/screens/screens.dart';
 import 'package:hacki/services/services.dart';
 
 part 'comments_state.dart';
 
 class CommentsCubit extends Cubit<CommentsState> {
   CommentsCubit({
-    CacheService? cacheService,
-    CacheRepository? cacheRepository,
+    required CollapseCache collapseCache,
+    CommentCache? commentCache,
+    OfflineRepository? offlineRepository,
     StoriesRepository? storiesRepository,
     SembastRepository? sembastRepository,
     required bool offlineReading,
-    required Story story,
-  })  : _cacheService = cacheService ?? locator.get<CacheService>(),
-        _cacheRepository = cacheRepository ?? locator.get<CacheRepository>(),
+    required Item item,
+  })  : _collapseCache = collapseCache,
+        _commentCache = commentCache ?? locator.get<CommentCache>(),
+        _offlineRepository =
+            offlineRepository ?? locator.get<OfflineRepository>(),
         _storiesRepository =
             storiesRepository ?? locator.get<StoriesRepository>(),
         _sembastRepository =
             sembastRepository ?? locator.get<SembastRepository>(),
-        super(CommentsState.init(offlineReading: offlineReading, story: story));
+        super(CommentsState.init(offlineReading: offlineReading, item: item));
 
-  final CacheService _cacheService;
-  final CacheRepository _cacheRepository;
+  final CollapseCache _collapseCache;
+  final CommentCache _commentCache;
+  final OfflineRepository _offlineRepository;
   final StoriesRepository _storiesRepository;
   final SembastRepository _sembastRepository;
   StreamSubscription<Comment>? _streamSubscription;
@@ -44,6 +51,7 @@ class CommentsCubit extends Cubit<CommentsState> {
 
   Future<void> init({
     bool onlyShowTargetComment = false,
+    bool useCommentCache = false,
     List<Comment>? targetParents,
   }) async {
     if (onlyShowTargetComment && (targetParents?.isNotEmpty ?? false)) {
@@ -68,31 +76,25 @@ class CommentsCubit extends Cubit<CommentsState> {
 
     emit(state.copyWith(status: CommentsStatus.loading));
 
-    final Story story = state.story;
-    final Story updatedStory = state.offlineReading
-        ? story
-        : await _storiesRepository.fetchStoryBy(story.id) ?? story;
-    final List<int> kids = () {
-      switch (state.order) {
-        case CommentsOrder.natural:
-          return updatedStory.kids;
-        case CommentsOrder.newestFirst:
-          return updatedStory.kids.sorted((int a, int b) => b.compareTo(a));
-        case CommentsOrder.oldestFirst:
-          return updatedStory.kids.sorted((int a, int b) => a.compareTo(b));
-      }
-    }();
+    final Item item = state.item;
+    final Item updatedItem = state.offlineReading
+        ? item
+        : await _storiesRepository.fetchItemBy(id: item.id) ?? item;
+    final List<int> kids = sortKids(updatedItem.kids);
 
-    emit(state.copyWith(story: updatedStory));
+    emit(state.copyWith(item: updatedItem));
 
     if (state.offlineReading) {
-      _streamSubscription = _cacheRepository
+      _streamSubscription = _offlineRepository
           .getCachedCommentsStream(ids: kids)
           .listen(_onCommentFetched)
         ..onDone(_onDone);
     } else {
       _streamSubscription = _storiesRepository
-          .fetchCommentsStream(ids: kids)
+          .fetchCommentsStream(
+            ids: kids,
+            getFromCache: useCommentCache ? _commentCache.getComment : null,
+          )
           .listen(_onCommentFetched)
         ..onDone(_onDone);
     }
@@ -108,9 +110,7 @@ class CommentsCubit extends Cubit<CommentsState> {
       return;
     }
 
-    _cacheService
-      ..resetComments()
-      ..resetCollapsedComments();
+    _collapseCache.resetCollapsedComments();
 
     emit(
       state.copyWith(
@@ -121,19 +121,10 @@ class CommentsCubit extends Cubit<CommentsState> {
 
     await _streamSubscription?.cancel();
 
-    final Story story = state.story;
-    final Story updatedStory =
-        await _storiesRepository.fetchStoryBy(story.id) ?? story;
-    final List<int> kids = () {
-      switch (state.order) {
-        case CommentsOrder.natural:
-          return updatedStory.kids;
-        case CommentsOrder.newestFirst:
-          return updatedStory.kids.sorted((int a, int b) => b.compareTo(a));
-        case CommentsOrder.oldestFirst:
-          return updatedStory.kids.sorted((int a, int b) => a.compareTo(b));
-      }
-    }();
+    final Item item = state.item;
+    final Item updatedItem =
+        await _storiesRepository.fetchItemBy(id: item.id) ?? item;
+    final List<int> kids = sortKids(updatedItem.kids);
 
     _streamSubscription = _storiesRepository
         .fetchCommentsStream(ids: kids)
@@ -142,18 +133,19 @@ class CommentsCubit extends Cubit<CommentsState> {
 
     emit(
       state.copyWith(
-        story: updatedStory,
+        item: updatedItem,
         status: CommentsStatus.loaded,
       ),
     );
   }
 
   void loadAll(Story story) {
+    HapticFeedback.lightImpact();
     emit(
       state.copyWith(
         onlyShowTargetComment: false,
         comments: <Comment>[],
-        story: story,
+        item: story,
       ),
     );
     init();
@@ -166,6 +158,47 @@ class CommentsCubit extends Cubit<CommentsState> {
     }
   }
 
+  Future<void> loadParentThread() async {
+    unawaited(HapticFeedback.lightImpact());
+    emit(state.copyWith(fetchParentStatus: CommentsStatus.loading));
+    final Story? parent =
+        await _storiesRepository.fetchParentStory(id: state.item.id);
+
+    if (parent == null) {
+      return;
+    } else {
+      await HackiApp.navigatorKey.currentState?.pushNamed(
+        ItemScreen.routeName,
+        arguments: ItemScreenArgs(item: parent),
+      );
+
+      emit(
+        state.copyWith(
+          fetchParentStatus: CommentsStatus.loaded,
+        ),
+      );
+    }
+  }
+
+  void onOrderChanged(CommentsOrder? order) {
+    HapticFeedback.selectionClick();
+    if (order == null) return;
+    _streamSubscription?.cancel();
+    emit(state.copyWith(order: order, comments: <Comment>[]));
+    init(useCommentCache: true);
+  }
+
+  List<int> sortKids(List<int> kids) {
+    switch (state.order) {
+      case CommentsOrder.natural:
+        return kids;
+      case CommentsOrder.newestFirst:
+        return kids.sorted((int a, int b) => b.compareTo(a));
+      case CommentsOrder.oldestFirst:
+        return kids.sorted((int a, int b) => a.compareTo(b));
+    }
+  }
+
   void _onDone() {
     _streamSubscription?.cancel();
     _streamSubscription = null;
@@ -178,9 +211,8 @@ class CommentsCubit extends Cubit<CommentsState> {
 
   void _onCommentFetched(Comment? comment) {
     if (comment != null) {
-      _cacheService
-        ..addKid(comment.id, to: comment.parent)
-        ..cacheComment(comment);
+      _collapseCache.addKid(comment.id, to: comment.parent);
+      _commentCache.cacheComment(comment);
       _sembastRepository.cacheComment(comment);
 
       final List<LinkifyElement> elements = _linkify(
@@ -200,7 +232,7 @@ class CommentsCubit extends Cubit<CommentsState> {
       if (updatedComments.length >= _pageSize + _pageSize * state.currentPage &&
           updatedComments.length <=
               _pageSize * 2 + _pageSize * state.currentPage) {
-        final bool isHidden = _cacheService.isHidden(comment.id);
+        final bool isHidden = _collapseCache.isHidden(comment.id);
 
         if (!isHidden) {
           _streamSubscription?.pause();
@@ -216,13 +248,6 @@ class CommentsCubit extends Cubit<CommentsState> {
     }
   }
 
-  void onOrderChanged(CommentsOrder? order) {
-    if (order == null) return;
-    _streamSubscription?.cancel();
-    emit(state.copyWith(order: order, comments: <Comment>[]));
-    init();
-  }
-
   static List<LinkifyElement> _linkify(
     String text, {
     LinkifyOptions options = const LinkifyOptions(),

lib/cubits/comments/comments_state.dart

@@ -16,9 +16,10 @@ enum CommentsOrder {
 
 class CommentsState extends Equatable {
   const CommentsState({
-    required this.story,
+    required this.item,
     required this.comments,
     required this.status,
+    required this.fetchParentStatus,
     required this.order,
     required this.onlyShowTargetComment,
     required this.offlineReading,
@@ -27,33 +28,37 @@ class CommentsState extends Equatable {
 
   CommentsState.init({
     required this.offlineReading,
-    required this.story,
+    required this.item,
   })  : comments = <Comment>[],
         status = CommentsStatus.init,
+        fetchParentStatus = CommentsStatus.init,
         order = CommentsOrder.natural,
         onlyShowTargetComment = false,
         currentPage = 0;
 
-  final Story story;
+  final Item item;
   final List<Comment> comments;
   final CommentsStatus status;
+  final CommentsStatus fetchParentStatus;
   final CommentsOrder order;
   final bool onlyShowTargetComment;
   final bool offlineReading;
   final int currentPage;
 
   CommentsState copyWith({
-    Story? story,
+    Item? item,
     List<Comment>? comments,
     CommentsStatus? status,
+    CommentsStatus? fetchParentStatus,
     CommentsOrder? order,
     bool? onlyShowTargetComment,
     bool? offlineReading,
     int? currentPage,
   }) {
     return CommentsState(
-      story: story ?? this.story,
+      item: item ?? this.item,
       comments: comments ?? this.comments,
+      fetchParentStatus: fetchParentStatus ?? this.fetchParentStatus,
       status: status ?? this.status,
       order: order ?? this.order,
       onlyShowTargetComment:
@@ -65,9 +70,10 @@ class CommentsState extends Equatable {
 
   @override
   List<Object?> get props => <Object?>[
-        story,
+        item,
         comments,
         status,
+        fetchParentStatus,
         order,
         onlyShowTargetComment,
         offlineReading,

lib/cubits/edit/edit_cubit.dart

@@ -8,19 +8,19 @@ import 'package:hacki/utils/debouncer.dart';
 part 'edit_state.dart';
 
 class EditCubit extends Cubit<EditState> {
-  EditCubit({CacheService? cacheService})
-      : _cacheService = cacheService ?? locator.get<CacheService>(),
+  EditCubit({DraftCache? draftCache})
+      : _draftCache = draftCache ?? locator.get<DraftCache>(),
         _debouncer = Debouncer(delay: const Duration(seconds: 1)),
         super(const EditState.init());
 
-  final CacheService _cacheService;
+  final DraftCache _draftCache;
   final Debouncer _debouncer;
 
   void onReplyTapped(Item item) {
     emit(
       EditState(
         replyingTo: item,
-        text: _cacheService.getDraft(replyingTo: item.id),
+        text: _draftCache.getDraft(replyingTo: item.id),
       ),
     );
   }
@@ -44,7 +44,7 @@ class EditCubit extends Cubit<EditState> {
 
   void onReplySubmittedSuccessfully() {
     if (state.replyingTo != null) {
-      _cacheService.removeDraft(replyingTo: state.replyingTo!.id);
+      _draftCache.removeDraft(replyingTo: state.replyingTo!.id);
     }
     emit(const EditState.init());
   }
@@ -54,7 +54,7 @@ class EditCubit extends Cubit<EditState> {
     if (state.replyingTo != null) {
       final int? id = state.replyingTo?.id;
       _debouncer.run(() {
-        _cacheService.cacheDraft(
+        _draftCache.cacheDraft(
           text: text,
           replyingTo: id!,
         );

lib/cubits/fav/fav_cubit.dart

@@ -39,15 +39,15 @@ class FavCubit extends Cubit<FavState> {
           emit(
             state.copyWith(
               favIds: favIds,
-              favStories: <Story>[],
+              favItems: <Item>[],
               currentPage: 0,
             ),
           );
           _storiesRepository
-              .fetchStoriesStream(
+              .fetchItemsStream(
                 ids: favIds.sublist(0, _pageSize.clamp(0, favIds.length)),
               )
-              .listen(_onStoryLoaded)
+              .listen(_onItemLoaded)
               .onDone(() {
             emit(
               state.copyWith(
@@ -73,13 +73,13 @@ class FavCubit extends Cubit<FavState> {
       ),
     );
 
-    final Story? story = await _storiesRepository.fetchStoryBy(id);
+    final Item? item = await _storiesRepository.fetchItemBy(id: id);
 
-    if (story == null) return;
+    if (item == null) return;
 
     emit(
       state.copyWith(
-        favStories: List<Story>.from(state.favStories)..insert(0, story),
+        favItems: List<Item>.from(state.favItems)..insert(0, item),
       ),
     );
 
@@ -96,8 +96,8 @@ class FavCubit extends Cubit<FavState> {
     emit(
       state.copyWith(
         favIds: List<int>.from(state.favIds)..remove(id),
-        favStories: List<Story>.from(state.favStories)
-          ..removeWhere((Story e) => e.id == id),
+        favItems: List<Item>.from(state.favItems)
+          ..removeWhere((Item e) => e.id == id),
       ),
     );
 
@@ -120,13 +120,13 @@ class FavCubit extends Cubit<FavState> {
       }
 
       _storiesRepository
-          .fetchStoriesStream(
+          .fetchItemsStream(
             ids: state.favIds.sublist(
               lower,
               upper,
             ),
           )
-          .listen(_onStoryLoaded)
+          .listen(_onItemLoaded)
           .onDone(() {
         emit(state.copyWith(status: FavStatus.loaded));
       });
@@ -142,7 +142,7 @@ class FavCubit extends Cubit<FavState> {
       state.copyWith(
         status: FavStatus.loading,
         currentPage: 0,
-        favStories: <Story>[],
+        favItems: <Item>[],
         favIds: <int>[],
       ),
     );
@@ -150,20 +150,20 @@ class FavCubit extends Cubit<FavState> {
     _preferenceRepository.favList(of: username).then((List<int> favIds) {
       emit(state.copyWith(favIds: favIds));
       _storiesRepository
-          .fetchStoriesStream(
+          .fetchItemsStream(
             ids: favIds.sublist(0, _pageSize.clamp(0, favIds.length)),
           )
-          .listen(_onStoryLoaded)
+          .listen(_onItemLoaded)
           .onDone(() {
         emit(state.copyWith(status: FavStatus.loaded));
       });
     });
   }
 
-  void _onStoryLoaded(Story story) {
+  void _onItemLoaded(Item item) {
     emit(
       state.copyWith(
-        favStories: List<Story>.from(state.favStories)..add(story),
+        favItems: List<Item>.from(state.favItems)..add(item),
       ),
     );
   }

lib/cubits/fav/fav_state.dart

@@ -10,31 +10,31 @@ enum FavStatus {
 class FavState extends Equatable {
   const FavState({
     required this.favIds,
-    required this.favStories,
+    required this.favItems,
     required this.status,
     required this.currentPage,
   });
 
   FavState.init()
       : favIds = <int>[],
-        favStories = <Story>[],
+        favItems = <Item>[],
         status = FavStatus.init,
         currentPage = 0;
 
   final List<int> favIds;
-  final List<Story> favStories;
+  final List<Item> favItems;
   final FavStatus status;
   final int currentPage;
 
   FavState copyWith({
     List<int>? favIds,
-    List<Story>? favStories,
+    List<Item>? favItems,
     FavStatus? status,
     int? currentPage,
   }) {
     return FavState(
       favIds: favIds ?? this.favIds,
-      favStories: favStories ?? this.favStories,
+      favItems: favItems ?? this.favItems,
       status: status ?? this.status,
       currentPage: currentPage ?? this.currentPage,
     );
@@ -43,7 +43,7 @@ class FavState extends Equatable {
   @override
   List<Object?> get props => <Object?>[
         favIds,
-        favStories,
+        favItems,
         status,
         currentPage,
       ];

lib/cubits/split_view/split_view_cubit.dart

@@ -3,19 +3,25 @@ import 'package:equatable/equatable.dart';
 import 'package:hacki/config/locator.dart';
 import 'package:hacki/screens/screens.dart';
 import 'package:hacki/services/services.dart';
+import 'package:logger/logger.dart';
 
 part 'split_view_state.dart';
 
 class SplitViewCubit extends Cubit<SplitViewState> {
-  SplitViewCubit({CacheService? cacheService})
-      : _cacheService = cacheService ?? locator.get<CacheService>(),
+  SplitViewCubit({
+    CommentCache? commentCache,
+    Logger? logger,
+  })  : _commentCache = commentCache ?? locator.get<CommentCache>(),
+        _logger = logger ?? locator.get<Logger>(),
         super(const SplitViewState.init());
 
-  final CacheService _cacheService;
+  final Logger _logger;
+  final CommentCache _commentCache;
 
-  void updateStoryScreenArgs(StoryScreenArgs args) {
-    _cacheService.resetCollapsedComments();
-    emit(state.copyWith(storyScreenArgs: args));
+  void updateItemScreenArgs(ItemScreenArgs args) {
+    _logger.i('resetting comments in CommentCache');
+    _commentCache.resetComments();
+    emit(state.copyWith(itemScreenArgs: args));
   }
 
   void enableSplitView() => emit(state.copyWith(enabled: true));

lib/cubits/split_view/split_view_state.dart

@@ -2,7 +2,7 @@ part of 'split_view_cubit.dart';
 
 class SplitViewState extends Equatable {
   const SplitViewState({
-    required this.storyScreenArgs,
+    required this.itemScreenArgs,
     required this.expanded,
     required this.enabled,
   });
@@ -10,21 +10,21 @@ class SplitViewState extends Equatable {
   const SplitViewState.init()
       : enabled = false,
         expanded = false,
-        storyScreenArgs = null;
+        itemScreenArgs = null;
 
   final bool enabled;
   final bool expanded;
-  final StoryScreenArgs? storyScreenArgs;
+  final ItemScreenArgs? itemScreenArgs;
 
   SplitViewState copyWith({
     bool? enabled,
     bool? expanded,
-    StoryScreenArgs? storyScreenArgs,
+    ItemScreenArgs? itemScreenArgs,
   }) {
     return SplitViewState(
       enabled: enabled ?? this.enabled,
       expanded: expanded ?? this.expanded,
-      storyScreenArgs: storyScreenArgs ?? this.storyScreenArgs,
+      itemScreenArgs: itemScreenArgs ?? this.itemScreenArgs,
     );
   }
 
@@ -32,6 +32,6 @@ class SplitViewState extends Equatable {
   List<Object?> get props => <Object?>[
         enabled,
         expanded,
-        storyScreenArgs,
+        itemScreenArgs,
       ];
 }

lib/cubits/time_machine/time_machine_cubit.dart

@@ -3,34 +3,34 @@ import 'package:equatable/equatable.dart';
 import 'package:hacki/config/locator.dart';
 import 'package:hacki/models/models.dart' show Comment;
 import 'package:hacki/repositories/repositories.dart';
-import 'package:hacki/services/cache_service.dart';
+import 'package:hacki/services/services.dart';
 
 part 'time_machine_state.dart';
 
 class TimeMachineCubit extends Cubit<TimeMachineState> {
   TimeMachineCubit({
     SembastRepository? sembastRepository,
-    CacheService? cacheService,
+    CommentCache? commentCache,
   })  : _sembastRepository =
             sembastRepository ?? locator.get<SembastRepository>(),
-        _cacheService = cacheService ?? locator.get<CacheService>(),
+        _commentCache = commentCache ?? locator.get<CommentCache>(),
         super(TimeMachineState.init());
 
   final SembastRepository _sembastRepository;
-  final CacheService _cacheService;
+  final CommentCache _commentCache;
 
   Future<void> activateTimeMachine(Comment comment) async {
     emit(state.copyWith(parents: <Comment>[]));
 
     final List<Comment> parents = <Comment>[];
-    Comment? parent = _cacheService.getComment(comment.parent);
+    Comment? parent = _commentCache.getComment(comment.parent);
     parent ??= await _sembastRepository.getCachedComment(id: comment.parent);
 
     while (parent != null) {
       parents.insert(0, parent);
 
       final int parentId = parent.parent;
-      parent = _cacheService.getComment(parentId);
+      parent = _commentCache.getComment(parentId);
       parent ??= await _sembastRepository.getCachedComment(id: parentId);
     }
 

lib/extensions/context_extension.dart

@@ -0,0 +1,12 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
+
+extension TryReadContext on BuildContext {
+  T? tryRead<T>() {
+    try {
+      return read<T>();
+    } catch (_) {
+      return null;
+    }
+  }
+}

lib/extensions/extensions.dart

@@ -1,3 +1,4 @@
+export 'context_extension.dart';
 export 'date_time_extension.dart';
 export 'int_extension.dart';
 export 'list_extension.dart';

lib/extensions/state_extension.dart

@@ -2,7 +2,8 @@ import 'package:flutter/material.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
 import 'package:hacki/cubits/cubits.dart';
 import 'package:hacki/main.dart';
-import 'package:hacki/screens/screens.dart' show StoryScreen, StoryScreenArgs;
+import 'package:hacki/screens/screens.dart' show ItemScreen, ItemScreenArgs;
+import 'package:hacki/styles/styles.dart';
 
 extension StateExtension on State {
   void showSnackBar({
@@ -12,7 +13,7 @@ extension StateExtension on State {
   }) {
     ScaffoldMessenger.of(context).showSnackBar(
       SnackBar(
-        backgroundColor: Colors.deepOrange,
+        backgroundColor: Palette.deepOrange,
         content: Text(content),
         action: action != null && label != null
             ? SnackBarAction(
@@ -26,14 +27,17 @@ extension StateExtension on State {
     );
   }
 
-  Future<void>? goToStoryScreen({required StoryScreenArgs args}) {
+  Future<void>? goToItemScreen({
+    required ItemScreenArgs args,
+    bool forceNewScreen = false,
+  }) {
     final bool splitViewEnabled = context.read<SplitViewCubit>().state.enabled;
 
-    if (splitViewEnabled) {
-      context.read<SplitViewCubit>().updateStoryScreenArgs(args);
+    if (splitViewEnabled && !forceNewScreen) {
+      context.read<SplitViewCubit>().updateItemScreenArgs(args);
     } else {
       return HackiApp.navigatorKey.currentState?.pushNamed(
-        StoryScreen.routeName,
+        ItemScreen.routeName,
         arguments: args,
       );
     }

lib/extensions/string_extension.dart

@@ -1,7 +1,8 @@
 extension StringExtension on String {
   int? getItemId() {
     final RegExp regex = RegExp(r'\d+$');
-    final String match = regex.stringMatch(this) ?? '';
+    final RegExp exception = RegExp(r'\)|].*$');
+    final String match = regex.stringMatch(replaceAll(exception, '')) ?? '';
     return int.tryParse(match);
   }
 

lib/extensions/widget_extension.dart

@@ -1,7 +1,7 @@
 import 'package:flutter/material.dart';
 
 extension WidgetModifier on Widget {
-  Widget padding([EdgeInsetsGeometry value = const EdgeInsets.all(12)]) {
+  Widget padded([EdgeInsetsGeometry value = const EdgeInsets.all(12)]) {
     return Padding(
       padding: value,
       child: this,

lib/main.dart

@@ -3,6 +3,7 @@ import 'dart:io';
 
 import 'package:adaptive_theme/adaptive_theme.dart';
 import 'package:feature_discovery/feature_discovery.dart';
+import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/scheduler.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
@@ -14,7 +15,9 @@ import 'package:hacki/config/locator.dart';
 import 'package:hacki/cubits/cubits.dart';
 import 'package:hacki/repositories/repositories.dart' show PreferenceRepository;
 import 'package:hacki/screens/screens.dart';
+import 'package:hacki/services/custom_bloc_observer.dart';
 import 'package:hacki/services/fetcher.dart';
+import 'package:hacki/styles/styles.dart';
 import 'package:hive/hive.dart';
 import 'package:path_provider/path_provider.dart';
 import 'package:rxdart/rxdart.dart' show BehaviorSubject;
@@ -29,9 +32,13 @@ final BehaviorSubject<String?> selectNotificationSubject =
 final BehaviorSubject<String?> siriSuggestionSubject =
     BehaviorSubject<String?>();
 
-Future<void> main() async {
+late final bool isTesting;
+
+Future<void> main({bool testing = false}) async {
   WidgetsFlutterBinding.ensureInitialized();
 
+  isTesting = testing;
+
   if (Platform.isIOS) {
     unawaited(
       Workmanager().initialize(
@@ -85,25 +92,26 @@ Future<void> main() async {
   final bool trueDarkMode =
       prefs.getBool(PreferenceRepository.trueDarkModeKey) ?? false;
 
-  // Uncomment code below for running with logging.
-  // BlocOverrides.runZoned(
-  //   () {
-  //     runApp(
-  //       HackiApp(
-  //         savedThemeMode: savedThemeMode,
-  //         trueDarkMode: trueDarkMode,
-  //       ),
-  //     );
-  //   },
-  //   blocObserver: CustomBlocObserver(),
-  // );
-
-  runApp(
-    HackiApp(
-      savedThemeMode: savedThemeMode,
-      trueDarkMode: trueDarkMode,
-    ),
-  );
+  if (kReleaseMode) {
+    runApp(
+      HackiApp(
+        savedThemeMode: savedThemeMode,
+        trueDarkMode: trueDarkMode,
+      ),
+    );
+  } else {
+    BlocOverrides.runZoned(
+      () {
+        runApp(
+          HackiApp(
+            savedThemeMode: savedThemeMode,
+            trueDarkMode: trueDarkMode,
+          ),
+        );
+      },
+      blocObserver: CustomBlocObserver(),
+    );
+  }
 }
 
 class HackiApp extends StatelessWidget {
@@ -182,19 +190,19 @@ class HackiApp extends StatelessWidget {
       ],
       child: AdaptiveTheme(
         light: ThemeData(
-          primarySwatch: Colors.orange,
+          primarySwatch: Palette.orange,
         ),
         dark: ThemeData(
           brightness: Brightness.dark,
-          primarySwatch: Colors.orange,
-          canvasColor: trueDarkMode ? Colors.black : null,
+          primarySwatch: Palette.orange,
+          canvasColor: trueDarkMode ? Palette.black : null,
         ),
         initial: savedThemeMode ?? AdaptiveThemeMode.system,
         builder: (ThemeData theme, ThemeData darkTheme) {
           final ThemeData trueDarkTheme = ThemeData(
             brightness: Brightness.dark,
-            primarySwatch: Colors.orange,
-            canvasColor: Colors.black,
+            primarySwatch: Palette.orange,
+            canvasColor: Palette.black,
           );
           return FutureBuilder<AdaptiveThemeMode?>(
             future: AdaptiveTheme.getThemeMode(),

lib/models/comment.dart

@@ -1,6 +1,5 @@
 import 'dart:convert';
 
-import 'package:hacki/extensions/extensions.dart';
 import 'package:hacki/models/item.dart';
 
 class Comment extends Item {
@@ -43,8 +42,7 @@ class Comment extends Item {
 
   final int level;
 
-  String get postedDate =>
-      DateTime.fromMillisecondsSinceEpoch(time * 1000).toReadableString();
+  String get metadata => '''by $by $postedDate''';
 
   Comment copyWith({int? level}) {
     return Comment(

lib/models/item.dart

@@ -1,4 +1,5 @@
 import 'package:equatable/equatable.dart';
+import 'package:hacki/extensions/date_time_extension.dart';
 
 abstract class Item extends Equatable {
   const Item({
@@ -54,6 +55,9 @@ abstract class Item extends Equatable {
   final List<int> kids;
   final List<int> parts;
 
+  String get postedDate =>
+      DateTime.fromMillisecondsSinceEpoch(time * 1000).toReadableString();
+
   bool get isPoll => type == 'poll';
 
   bool get isStory => type == 'story';

lib/models/poll_option.dart

@@ -1,6 +1,5 @@
 import 'dart:convert';
 
-import 'package:hacki/extensions/extensions.dart';
 import 'package:hacki/models/item.dart';
 
 class PollOption extends Item {
@@ -63,9 +62,6 @@ class PollOption extends Item {
 
   final double ratio;
 
-  String get postedDate =>
-      DateTime.fromMillisecondsSinceEpoch(time * 1000).toReadableString();
-
   PollOption copyWith({double? ratio}) {
     return PollOption(
       id: id,

lib/models/story.dart

@@ -1,6 +1,5 @@
 import 'dart:convert';
 
-import 'package:hacki/extensions/extensions.dart';
 import 'package:hacki/models/item.dart';
 
 enum StoryType {
@@ -94,9 +93,6 @@ class Story extends Item {
   String get simpleMetadata =>
       '''$score point${score > 1 ? 's' : ''} $descendants comment${descendants > 1 ? 's' : ''} $postedDate''';
 
-  String get postedDate =>
-      DateTime.fromMillisecondsSinceEpoch(time * 1000).toReadableString();
-
   Map<String, dynamic> toJson() {
     return <String, dynamic>{
       'descendants': descendants,

lib/repositories/auth_repository.dart

@@ -5,16 +5,20 @@ import 'package:hacki/config/locator.dart';
 import 'package:hacki/models/models.dart';
 import 'package:hacki/repositories/postable_repository.dart';
 import 'package:hacki/repositories/repositories.dart';
+import 'package:logger/logger.dart';
 
 class AuthRepository extends PostableRepository {
   AuthRepository({
     Dio? dio,
     PreferenceRepository? preferenceRepository,
+    Logger? logger,
   })  : _preferenceRepository =
             preferenceRepository ?? locator.get<PreferenceRepository>(),
+        _logger = logger ?? locator.get<Logger>(),
         super(dio: dio);
 
   final PreferenceRepository _preferenceRepository;
+  final Logger _logger;
 
   static const String _authority = 'news.ycombinator.com';
 
@@ -38,10 +42,15 @@ class AuthRepository extends PostableRepository {
     final bool success = await performDefaultPost(uri, data);
 
     if (success) {
-      await _preferenceRepository.setAuth(
-        username: username,
-        password: password,
-      );
+      try {
+        await _preferenceRepository.setAuth(
+          username: username,
+          password: password,
+        );
+      } catch (_) {
+        _logger.e(_);
+        return false;
+      }
     }
 
     return success;

lib/repositories/cache_repository.dart

@@ -1,167 +0,0 @@
-import 'package:flutter/foundation.dart';
-import 'package:hacki/models/models.dart';
-import 'package:hive/hive.dart';
-import 'package:http/http.dart';
-
-/// [CacheRepository] is for storing stories and comments for offline reading.
-/// It's using [Hive] as its database which is being stored in temp directory.
-class CacheRepository {
-  CacheRepository({
-    Future<Box<List<int>>>? storyIdBox,
-    Future<Box<Map<dynamic, dynamic>>>? storyBox,
-    Future<Box<String>>? webPageBox,
-    Future<LazyBox<Map<dynamic, dynamic>>>? commentBox,
-  })  : _storyIdBox = storyIdBox ?? Hive.openBox<List<int>>(_storyIdBoxName),
-        _storyBox =
-            storyBox ?? Hive.openBox<Map<dynamic, dynamic>>(_storyBoxName),
-        _webPageBox = webPageBox ?? Hive.openBox<String>(_webPageBoxName),
-        _commentBox = commentBox ??
-            Hive.openLazyBox<Map<dynamic, dynamic>>(_commentBoxName);
-
-  static const String _storyIdBoxName = 'storyIdBox';
-  static const String _storyBoxName = 'storyBox';
-  static const String _commentBoxName = 'commentBox';
-  static const String _webPageBoxName = 'webPageBox';
-  final Future<Box<List<int>>> _storyIdBox;
-  final Future<Box<Map<dynamic, dynamic>>> _storyBox;
-  final Future<LazyBox<Map<dynamic, dynamic>>> _commentBox;
-  final Future<Box<String>> _webPageBox;
-
-  Future<bool> get hasCachedStories =>
-      _storyBox.then((Box<Map<dynamic, dynamic>> box) => box.isNotEmpty);
-
-  Future<void> cacheStoryIds({
-    required StoryType of,
-    required List<int> ids,
-  }) async {
-    final Box<List<int>> box = await _storyIdBox;
-    return box.put(of.name, ids);
-  }
-
-  Future<void> cacheStory({required Story story}) async {
-    final Box<Map<dynamic, dynamic>> box = await _storyBox;
-    return box.put(story.id.toString(), story.toJson());
-  }
-
-  Future<void> cacheUrl({required String url}) async {
-    final Box<String> box = await _webPageBox;
-    final String html = await compute(downloadWebPage, url);
-    return box.put(url, html);
-  }
-
-  Future<String?> getHtml({required String url}) async {
-    final Box<String> box = await _webPageBox;
-    return box.get(url);
-  }
-
-  Future<bool> hasCachedWebPage({required String url}) async {
-    final Box<String> box = await _webPageBox;
-    return box.containsKey(url);
-  }
-
-  Future<List<int>> getCachedStoryIds({required StoryType of}) async {
-    final Box<List<int>> box = await _storyIdBox;
-    final List<int>? ids = box.get(of.name);
-    return ids ?? <int>[];
-  }
-
-  Stream<Story> getCachedStoriesStream({required List<int> ids}) async* {
-    final Box<Map<dynamic, dynamic>> box = await _storyBox;
-
-    for (final int id in ids) {
-      final Map<dynamic, dynamic>? json = box.get(id.toString());
-
-      if (json == null) {
-        continue;
-      }
-
-      final Story story = Story.fromJson(json.cast<String, dynamic>());
-      yield story;
-    }
-
-    return;
-  }
-
-  Future<Story?> getCachedStory({required int id}) async {
-    final Box<Map<dynamic, dynamic>> box = await _storyBox;
-    final Map<dynamic, dynamic>? json = box.get(id.toString());
-    if (json == null) {
-      return null;
-    }
-    final Story story = Story.fromJson(json.cast<String, dynamic>());
-    return story;
-  }
-
-  Future<void> cacheComment({required Comment comment}) async {
-    final LazyBox<Map<dynamic, dynamic>> box = await _commentBox;
-    return box.put(comment.id.toString(), comment.toJson());
-  }
-
-  Future<Comment?> getCachedComment({required int id}) async {
-    final LazyBox<Map<dynamic, dynamic>> box = await _commentBox;
-    final Map<dynamic, dynamic>? json = await box.get(id.toString());
-    if (json == null) {
-      return null;
-    }
-    final Comment comment = Comment.fromJson(json.cast<String, dynamic>());
-    return comment;
-  }
-
-  Stream<Comment> getCachedCommentsStream({
-    required List<int> ids,
-    int level = 0,
-  }) async* {
-    final LazyBox<Map<dynamic, dynamic>> box = await _commentBox;
-
-    for (final int id in ids) {
-      final Map<dynamic, dynamic>? json = await box.get(id.toString());
-
-      if (json != null) {
-        final Comment comment =
-            Comment.fromJson(json.cast<String, dynamic>(), level: level);
-
-        yield comment;
-        yield* getCachedCommentsStream(ids: comment.kids, level: level + 1);
-      }
-    }
-  }
-
-  Future<int> deleteAllStoryIds() async {
-    final Box<List<int>> box = await _storyIdBox;
-    return box.clear();
-  }
-
-  Future<int> deleteAllStories() async {
-    final Box<Map<dynamic, dynamic>> box = await _storyBox;
-    return box.clear();
-  }
-
-  Future<int> deleteAllComments() async {
-    final LazyBox<Map<dynamic, dynamic>> box = await _commentBox;
-    return box.clear();
-  }
-
-  Future<int> deleteAllWebPages() async {
-    final Box<String> box = await _webPageBox;
-    return box.clear();
-  }
-
-  Future<int> deleteAll() async {
-    return deleteAllStoryIds()
-        .whenComplete(deleteAllStories)
-        .whenComplete(deleteAllComments)
-        .whenComplete(deleteAllWebPages);
-  }
-
-  static Future<String> downloadWebPage(String link) async {
-    try {
-      final Client client = Client();
-      final Uri url = Uri.parse(link);
-      final Response response = await client.get(url);
-      final String body = response.body;
-      return body;
-    } catch (_) {
-      return '''Web page not available.''';
-    }
-  }
-}

lib/repositories/offline_repository.dart

@@ -0,0 +1,274 @@
+import 'package:flutter/foundation.dart';
+import 'package:hacki/config/locator.dart';
+import 'package:hacki/models/models.dart';
+import 'package:hive/hive.dart';
+import 'package:http/http.dart';
+import 'package:logger/logger.dart';
+
+/// [OfflineRepository] is for storing stories and comments for offline reading.
+/// It's using [Hive] as its database which is being stored in temp directory.
+class OfflineRepository {
+  OfflineRepository({
+    Future<Box<List<int>>>? storyIdBox,
+    Future<Box<Map<dynamic, dynamic>>>? storyBox,
+    Future<LazyBox<String>>? webPageBox,
+    Future<LazyBox<Map<dynamic, dynamic>>>? commentBox,
+    Logger? logger,
+  })  : _storyIdBox = storyIdBox ?? Hive.openBox<List<int>>(_storyIdBoxName),
+        _storyBox =
+            storyBox ?? Hive.openBox<Map<dynamic, dynamic>>(_storyBoxName),
+        _webPageBox = webPageBox ?? Hive.openLazyBox<String>(_webPageBoxName),
+        _commentBox = commentBox ??
+            Hive.openLazyBox<Map<dynamic, dynamic>>(_commentBoxName),
+        _logger = logger ?? locator.get<Logger>();
+
+  static const String _storyIdBoxName = 'storyIdBox';
+  static const String _storyBoxName = 'storyBox';
+  static const String _commentBoxName = 'commentBox';
+  static const String _webPageBoxName = 'webPageBox';
+  final Future<Box<List<int>>> _storyIdBox;
+  final Future<Box<Map<dynamic, dynamic>>> _storyBox;
+  final Future<LazyBox<Map<dynamic, dynamic>>> _commentBox;
+  final Future<LazyBox<String>> _webPageBox;
+  final Logger _logger;
+
+  Future<bool> get hasCachedStories =>
+      _storyBox.then((Box<Map<dynamic, dynamic>> box) => box.isNotEmpty);
+
+  Future<void> cacheStoryIds({
+    required StoryType of,
+    required List<int> ids,
+  }) async {
+    late final Box<List<int>> box;
+
+    try {
+      box = await _storyIdBox;
+    } catch (_) {
+      _logger.e(_);
+      await Hive.deleteBoxFromDisk(_storyIdBoxName);
+      box = await _storyIdBox;
+    }
+
+    return box.put(of.name, ids);
+  }
+
+  Future<void> cacheStory({required Story story}) async {
+    late final Box<Map<dynamic, dynamic>> box;
+
+    try {
+      box = await _storyBox;
+    } catch (_) {
+      _logger.e(_);
+      await Hive.deleteBoxFromDisk(_storyBoxName);
+      box = await _storyBox;
+    }
+
+    return box.put(story.id.toString(), story.toJson());
+  }
+
+  Future<void> cacheUrl({required String url}) async {
+    late final LazyBox<String> box;
+
+    try {
+      box = await _webPageBox;
+    } catch (_) {
+      _logger.e(_);
+      await Hive.deleteBoxFromDisk(_webPageBoxName);
+      box = await _webPageBox;
+    }
+
+    final String html = await compute(_downloadWebPage, url);
+    return box.put(url, html);
+  }
+
+  Future<String?> getHtml({required String url}) async {
+    try {
+      final LazyBox<String> box = await _webPageBox;
+      return box.get(url);
+    } catch (_) {
+      _logger.e(_);
+      await Hive.deleteBoxFromDisk(_webPageBoxName);
+      return null;
+    }
+  }
+
+  Future<bool> hasCachedWebPage({required String url}) async {
+    try {
+      final LazyBox<String> box = await _webPageBox;
+      return box.containsKey(url);
+    } catch (_) {
+      _logger.e(_);
+      await Hive.deleteBoxFromDisk(_webPageBoxName);
+      return false;
+    }
+  }
+
+  Future<List<int>> getCachedStoryIds({required StoryType of}) async {
+    try {
+      final Box<List<int>> box = await _storyIdBox;
+      final List<int>? ids = box.get(of.name);
+      return ids ?? <int>[];
+    } catch (_) {
+      _logger.e(_);
+      await Hive.deleteBoxFromDisk(_storyIdBoxName);
+      return <int>[];
+    }
+  }
+
+  Stream<Story> getCachedStoriesStream({required List<int> ids}) async* {
+    late final Box<Map<dynamic, dynamic>> box;
+
+    try {
+      box = await _storyBox;
+    } catch (_) {
+      _logger.e(_);
+      await Hive.deleteBoxFromDisk(_storyBoxName);
+      return;
+    }
+
+    for (final int id in ids) {
+      final Map<dynamic, dynamic>? json = box.get(id.toString());
+
+      if (json == null) {
+        continue;
+      }
+
+      final Story story = Story.fromJson(json.cast<String, dynamic>());
+      yield story;
+    }
+
+    return;
+  }
+
+  Future<Story?> getCachedStory({required int id}) async {
+    late final Box<Map<dynamic, dynamic>> box;
+
+    try {
+      box = await _storyBox;
+    } catch (_) {
+      _logger.e(_);
+      await Hive.deleteBoxFromDisk(_storyBoxName);
+      return null;
+    }
+
+    final Map<dynamic, dynamic>? json = box.get(id.toString());
+    if (json == null) {
+      return null;
+    }
+    final Story story = Story.fromJson(json.cast<String, dynamic>());
+    return story;
+  }
+
+  Future<void> cacheComment({required Comment comment}) async {
+    late final LazyBox<Map<dynamic, dynamic>> box;
+
+    try {
+      box = await _commentBox;
+    } catch (_) {
+      _logger.e(_);
+      await Hive.deleteBoxFromDisk(_commentBoxName);
+      box = await _commentBox;
+    }
+
+    return box.put(comment.id.toString(), comment.toJson());
+  }
+
+  Future<Comment?> getCachedComment({required int id}) async {
+    try {
+      final LazyBox<Map<dynamic, dynamic>> box = await _commentBox;
+      final Map<dynamic, dynamic>? json = await box.get(id.toString());
+      if (json == null) {
+        return null;
+      }
+      final Comment comment = Comment.fromJson(json.cast<String, dynamic>());
+      return comment;
+    } catch (_) {
+      _logger.e(_);
+      await Hive.deleteBoxFromDisk(_commentBoxName);
+      return null;
+    }
+  }
+
+  Stream<Comment> getCachedCommentsStream({
+    required List<int> ids,
+    int level = 0,
+  }) async* {
+    final LazyBox<Map<dynamic, dynamic>> box = await _commentBox;
+
+    for (final int id in ids) {
+      final Map<dynamic, dynamic>? json = await box.get(id.toString());
+
+      if (json != null) {
+        final Comment comment =
+            Comment.fromJson(json.cast<String, dynamic>(), level: level);
+
+        yield comment;
+        yield* getCachedCommentsStream(ids: comment.kids, level: level + 1);
+      }
+    }
+  }
+
+  Future<int> deleteAllStoryIds() async {
+    try {
+      final Box<List<int>> box = await _storyIdBox;
+      return box.clear();
+    } catch (_) {
+      _logger.e(_);
+      await Hive.deleteBoxFromDisk(_storyIdBoxName);
+      return 0;
+    }
+  }
+
+  Future<int> deleteAllStories() async {
+    try {
+      final Box<Map<dynamic, dynamic>> box = await _storyBox;
+      return box.clear();
+    } catch (_) {
+      _logger.e(_);
+      await Hive.deleteBoxFromDisk(_storyBoxName);
+      return 0;
+    }
+  }
+
+  Future<int> deleteAllComments() async {
+    try {
+      final LazyBox<Map<dynamic, dynamic>> box = await _commentBox;
+      return box.clear();
+    } catch (_) {
+      _logger.e(_);
+      await Hive.deleteBoxFromDisk(_commentBoxName);
+      return 0;
+    }
+  }
+
+  Future<int> deleteAllWebPages() async {
+    try {
+      final LazyBox<String> box = await _webPageBox;
+      return box.clear();
+    } catch (_) {
+      _logger.e(_);
+      await Hive.deleteBoxFromDisk(_webPageBoxName);
+      return 0;
+    }
+  }
+
+  Future<int> deleteAll() async {
+    return deleteAllStoryIds()
+        .whenComplete(deleteAllStories)
+        .whenComplete(deleteAllComments)
+        .whenComplete(deleteAllWebPages);
+  }
+
+  static Future<String> _downloadWebPage(String link) async {
+    try {
+      final Client client = Client();
+      final Uri url = Uri.parse(link);
+      final Response response = await client.get(url);
+      final String body = response.body;
+      client.close();
+      return body;
+    } catch (_) {
+      return '''Web page not available.''';
+    }
+  }
+}

lib/repositories/preference_repository.dart

@@ -2,6 +2,8 @@ import 'dart:async';
 import 'dart:io';
 
 import 'package:flutter_secure_storage/flutter_secure_storage.dart';
+import 'package:hacki/config/locator.dart';
+import 'package:logger/logger.dart';
 import 'package:shared_preferences/shared_preferences.dart';
 import 'package:synced_shared_preferences/synced_shared_preferences.dart';
 
@@ -10,9 +12,11 @@ class PreferenceRepository {
     SyncedSharedPreferences? syncedPrefs,
     Future<SharedPreferences>? prefs,
     FlutterSecureStorage? secureStorage,
+    Logger? logger,
   })  : _syncedPrefs = syncedPrefs ?? SyncedSharedPreferences.instance,
         _prefs = prefs ?? SharedPreferences.getInstance(),
-        _secureStorage = secureStorage ?? const FlutterSecureStorage();
+        _secureStorage = secureStorage ?? const FlutterSecureStorage(),
+        _logger = logger ?? locator.get<Logger>();
 
   static const String _usernameKey = 'username';
   static const String _passwordKey = 'password';
@@ -41,7 +45,8 @@ class PreferenceRepository {
 
   static const bool _notificationModeDefaultValue = true;
   static const bool _displayModeDefaultValue = true;
-  static const bool _navigationModeDefaultValue = true;
+  static const bool _navigationModeDefaultValueIOS = true;
+  static const bool _navigationModeDefaultValueAndroid = false;
   static const bool _eyeCandyModeDefaultValue = false;
   static const bool _trueDarkModeDefaultValue = false;
   static const bool _readerModeDefaultValue = true;
@@ -52,6 +57,7 @@ class PreferenceRepository {
   final SyncedSharedPreferences _syncedPrefs;
   final Future<SharedPreferences> _prefs;
   final FlutterSecureStorage _secureStorage;
+  final Logger _logger;
 
   Future<bool> get loggedIn async => await username != null;
 
@@ -82,7 +88,10 @@ class PreferenceRepository {
 
   Future<bool> get shouldShowWebFirst async => _prefs.then(
         (SharedPreferences prefs) =>
-            prefs.getBool(_navigationModeKey) ?? _navigationModeDefaultValue,
+            prefs.getBool(_navigationModeKey) ??
+            (Platform.isAndroid
+                ? _navigationModeDefaultValueAndroid
+                : _navigationModeDefaultValueIOS),
       );
 
   Future<bool> get shouldShowEyeCandy async => _prefs.then(
@@ -140,8 +149,29 @@ class PreferenceRepository {
     required String username,
     required String password,
   }) async {
-    await _secureStorage.write(key: _usernameKey, value: username);
-    await _secureStorage.write(key: _passwordKey, value: password);
+    const AndroidOptions androidOptions = AndroidOptions(resetOnError: true);
+    try {
+      await _secureStorage.write(
+        key: _usernameKey,
+        value: username,
+        aOptions: androidOptions,
+      );
+      await _secureStorage.write(
+        key: _passwordKey,
+        value: password,
+        aOptions: androidOptions,
+      );
+    } catch (_) {
+      try {
+        await _secureStorage.deleteAll(
+          aOptions: androidOptions,
+        );
+      } catch (_) {
+        _logger.e(_);
+      }
+
+      rethrow;
+    }
   }
 
   Future<void> removeAuth() async {
@@ -165,8 +195,10 @@ class PreferenceRepository {
 
   Future<void> toggleNavigationMode() async {
     final SharedPreferences prefs = await _prefs;
-    final bool currentMode =
-        prefs.getBool(_navigationModeKey) ?? _navigationModeDefaultValue;
+    final bool currentMode = prefs.getBool(_navigationModeKey) ??
+        (Platform.isAndroid
+            ? _navigationModeDefaultValueAndroid
+            : _navigationModeDefaultValueIOS);
     await prefs.setBool(_navigationModeKey, !currentMode);
   }
 

lib/repositories/repositories.dart

@@ -1,5 +1,5 @@
 export 'auth_repository.dart';
-export 'cache_repository.dart';
+export 'offline_repository.dart';
 export 'post_repository.dart';
 export 'preference_repository.dart';
 export 'search_repository.dart';

lib/repositories/stories_repository.dart

@@ -51,9 +51,12 @@ class StoriesRepository {
   Stream<Comment> fetchCommentsStream({
     required List<int> ids,
     int level = 0,
+    Comment? Function(int)? getFromCache,
   }) async* {
     for (final int id in ids) {
-      final Comment? comment = await _firebaseClient
+      Comment? comment = getFromCache?.call(id)?.copyWith(level: level);
+
+      comment ??= await _firebaseClient
           .get('${_baseUrl}item/$id.json')
           .then((dynamic json) => _parseJson(json as Map<String, dynamic>?))
           .then((Map<String, dynamic>? json) async {
@@ -69,6 +72,7 @@ class StoriesRepository {
         yield* fetchCommentsStream(
           ids: comment.kids,
           level: level + 1,
+          getFromCache: getFromCache,
         );
       }
     }
@@ -170,7 +174,7 @@ class StoriesRepository {
       if (json == null) return null;
 
       final String type = json['type'] as String;
-      if (type == 'story' || type == 'job') {
+      if (type == 'story' || type == 'job' || type == 'poll') {
         final Story story = Story.fromJson(json);
         return story;
       } else if (json['type'] == 'comment') {
@@ -192,7 +196,7 @@ class StoriesRepository {
       final Map<String, dynamic> json = val as Map<String, dynamic>;
 
       final String type = json['type'] as String;
-      if (type == 'story' || type == 'job') {
+      if (type == 'story' || type == 'job' || type == 'poll') {
         final Story story = Story.fromJson(json);
         return story;
       } else if (json['type'] == 'comment') {

lib/screens/home_screen.dart

@@ -24,7 +24,9 @@ import 'package:hacki/repositories/repositories.dart';
 import 'package:hacki/screens/screens.dart';
 import 'package:hacki/screens/widgets/widgets.dart';
 import 'package:hacki/services/services.dart';
+import 'package:hacki/styles/styles.dart';
 import 'package:hacki/utils/utils.dart';
+import 'package:logger/logger.dart';
 import 'package:receive_sharing_intent/receive_sharing_intent.dart';
 import 'package:responsive_builder/responsive_builder.dart';
 
@@ -46,7 +48,6 @@ class HomeScreen extends StatefulWidget {
 
 class _HomeScreenState extends State<HomeScreen>
     with SingleTickerProviderStateMixin, RouteAware {
-  final CacheService cacheService = locator.get<CacheService>();
   final Throttle featureDiscoveryDismissThrottle = Throttle(
     delay: _throttleDelay,
   );
@@ -65,9 +66,10 @@ class _HomeScreenState extends State<HomeScreen>
     super.didPopNext();
     if (context.read<StoriesBloc>().deviceScreenType ==
         DeviceScreenType.mobile) {
+      locator.get<Logger>().i('resetting comments in CommentCache');
       Future<void>.delayed(
         const Duration(milliseconds: 500),
-        cacheService.resetCollapsedComments,
+        locator.get<CommentCache>().resetComments,
       );
     }
   }
@@ -101,12 +103,14 @@ class _HomeScreenState extends State<HomeScreen>
 
     SchedulerBinding.instance
       ..addPostFrameCallback((_) {
-        FeatureDiscovery.discoverFeatures(
-          context,
-          const <String>{
-            Constants.featureLogIn,
-          },
-        );
+        if (!isTesting) {
+          FeatureDiscovery.discoverFeatures(
+            context,
+            const <String>{
+              Constants.featureLogIn,
+            },
+          );
+        }
       })
       ..addPostFrameCallback((_) {
         final ModalRoute<dynamic>? route = ModalRoute.of(context);
@@ -171,8 +175,8 @@ class _HomeScreenState extends State<HomeScreen>
                               HapticFeedback.lightImpact();
                               context.read<PinCubit>().unpinStory(story);
                             },
-                            backgroundColor: Colors.red,
-                            foregroundColor: Colors.white,
+                            backgroundColor: Palette.red,
+                            foregroundColor: Palette.white,
                             icon: preferenceState.showComplexStoryTile
                                 ? Icons.close
                                 : null,
@@ -181,7 +185,7 @@ class _HomeScreenState extends State<HomeScreen>
                         ],
                       ),
                       child: Container(
-                        color: Colors.orangeAccent.withOpacity(0.2),
+                        color: Palette.orangeAccent.withOpacity(0.2),
                         child: StoryTile(
                           key: ValueKey<String>('${story.id}-PinnedStoryTile'),
                           story: story,
@@ -194,9 +198,9 @@ class _HomeScreenState extends State<HomeScreen>
                   ),
                 if (state.pinnedStories.isNotEmpty)
                   const Padding(
-                    padding: EdgeInsets.symmetric(horizontal: 12),
+                    padding: EdgeInsets.symmetric(horizontal: Dimens.pt12),
                     child: Divider(
-                      color: Colors.orangeAccent,
+                      color: Palette.orangeAccent,
                     ),
                   ),
               ],
@@ -209,27 +213,32 @@ class _HomeScreenState extends State<HomeScreen>
           child: Scaffold(
             resizeToAvoidBottomInset: false,
             appBar: PreferredSize(
-              preferredSize: const Size(0, 40),
+              preferredSize: const Size(
+                Dimens.zero,
+                Dimens.pt40,
+              ),
               child: Column(
                 children: <Widget>[
                   SizedBox(
-                    height: MediaQuery.of(context).padding.top - 8,
+                    height: MediaQuery.of(context).padding.top - Dimens.pt8,
                   ),
                   Theme(
                     data: ThemeData(
-                      highlightColor: Colors.transparent,
-                      splashColor: Colors.transparent,
+                      highlightColor: Palette.transparent,
+                      splashColor: Palette.transparent,
                       primaryColor: Theme.of(context).primaryColor,
                     ),
                     child: TabBar(
                       isScrollable: true,
                       controller: tabController,
-                      indicatorColor: Colors.orange,
+                      indicatorColor: Palette.orange,
                       indicator: CircleTabIndicator(
-                        color: Colors.orange,
-                        radius: 2,
+                        color: Palette.orange,
+                        radius: Dimens.pt2,
+                      ),
+                      indicatorPadding: const EdgeInsets.only(
+                        bottom: Dimens.pt8,
                       ),
-                      indicatorPadding: const EdgeInsets.only(bottom: 8),
                       onTap: (_) {
                         HapticFeedback.selectionClick();
                       },
@@ -242,10 +251,12 @@ class _HomeScreenState extends State<HomeScreen>
                             child: Text(
                               StoriesBloc.types.elementAt(i).label,
                               style: TextStyle(
-                                fontSize: currentIndex == i ? 14 : 10,
+                                fontSize: currentIndex == i
+                                    ? TextDimens.pt14
+                                    : TextDimens.pt10,
                                 color: currentIndex == i
-                                    ? Colors.orange
-                                    : Colors.grey,
+                                    ? Palette.orange
+                                    : Palette.grey,
                               ),
                             ),
                           ),
@@ -263,8 +274,8 @@ class _HomeScreenState extends State<HomeScreen>
                             targetColor: Theme.of(context).primaryColor,
                             tapTarget: const Icon(
                               Icons.person,
-                              size: 16,
-                              color: Colors.white,
+                              size: TextDimens.pt16,
+                              color: Palette.white,
                             ),
                             featureId: Constants.featureLogIn,
                             title: const Text('Log in for more'),
@@ -274,7 +285,7 @@ class _HomeScreenState extends State<HomeScreen>
                               'posted in the past, and get in-app '
                               'notification when there is new reply to '
                               'your comments or stories.',
-                              style: TextStyle(fontSize: 16),
+                              style: TextStyle(fontSize: TextDimens.pt16),
                             ),
                             child: BlocBuilder<NotificationCubit,
                                 NotificationState>(
@@ -292,19 +303,21 @@ class _HomeScreenState extends State<HomeScreen>
                                   showBadge: state.unreadCommentsIds.isNotEmpty,
                                   borderRadius: BorderRadius.circular(100),
                                   badgeContent: Container(
-                                    height: 3,
-                                    width: 3,
+                                    height: Dimens.pt3,
+                                    width: Dimens.pt3,
                                     decoration: const BoxDecoration(
                                       shape: BoxShape.circle,
-                                      color: Colors.white,
+                                      color: Palette.white,
                                     ),
                                   ),
                                   child: Icon(
                                     Icons.person,
-                                    size: currentIndex == 5 ? 16 : 12,
+                                    size: currentIndex == 5
+                                        ? TextDimens.pt16
+                                        : TextDimens.pt12,
                                     color: currentIndex == 5
-                                        ? Colors.orange
-                                        : Colors.grey,
+                                        ? Palette.orange
+                                        : Palette.grey,
                                   ),
                                 );
                               },
@@ -375,16 +388,16 @@ class _HomeScreenState extends State<HomeScreen>
     if (isJobWithLink) {
       context.read<ReminderCubit>().removeLastReadStoryId();
     } else {
-      final StoryScreenArgs args = StoryScreenArgs(story: story);
+      final ItemScreenArgs args = ItemScreenArgs(item: story);
 
       context.read<ReminderCubit>().updateLastReadStoryId(story.id);
 
       if (splitViewEnabled) {
-        context.read<SplitViewCubit>().updateStoryScreenArgs(args);
+        context.read<SplitViewCubit>().updateItemScreenArgs(args);
       } else {
         HackiApp.navigatorKey.currentState
             ?.pushNamed(
-          StoryScreen.routeName,
+          ItemScreen.routeName,
           arguments: args,
         )
             .whenComplete(() {
@@ -436,13 +449,10 @@ class _HomeScreenState extends State<HomeScreen>
     final int? id = event.getItemId();
 
     if (id != null) {
-      locator
-          .get<StoriesRepository>()
-          .fetchParentStory(id: id)
-          .then((Story? story) {
+      locator.get<StoriesRepository>().fetchItemBy(id: id).then((Item? item) {
         if (mounted) {
-          if (story != null) {
-            goToStoryScreen(args: StoryScreenArgs(story: story));
+          if (item != null) {
+            goToItemScreen(args: ItemScreenArgs(item: item));
           }
         }
       });
@@ -462,8 +472,8 @@ class _HomeScreenState extends State<HomeScreen>
         showSnackBar(content: 'Something went wrong...');
         return;
       }
-      final StoryScreenArgs args = StoryScreenArgs(story: story);
-      goToStoryScreen(args: args);
+      final ItemScreenArgs args = ItemScreenArgs(item: story);
+      goToItemScreen(args: args);
     });
   }
 
@@ -487,8 +497,8 @@ class _HomeScreenState extends State<HomeScreen>
           showSnackBar(content: 'Something went wrong...');
           return;
         }
-        final StoryScreenArgs args = StoryScreenArgs(story: story);
-        goToStoryScreen(args: args);
+        final ItemScreenArgs args = ItemScreenArgs(item: story);
+        goToItemScreen(args: args);
       });
     }
   }
@@ -509,10 +519,10 @@ class _MobileHomeScreen extends StatelessWidget {
         Positioned.fill(child: homeScreen),
         if (!context.read<ReminderCubit>().state.hasShown)
           const Positioned(
-            left: 24,
-            right: 24,
-            bottom: 36,
-            height: 40,
+            left: Dimens.pt24,
+            right: Dimens.pt24,
+            bottom: Dimens.pt36,
+            height: Dimens.pt40,
             child: CountdownReminder(),
           ),
       ],
@@ -536,7 +546,7 @@ class _TabletHomeScreen extends StatelessWidget {
         double homeScreenWidth = 428;
 
         if (sizeInfo.screenSize.width < homeScreenWidth * 2) {
-          homeScreenWidth = 345.0;
+          homeScreenWidth = 345;
         }
 
         return BlocBuilder<SplitViewCubit, SplitViewState>(
@@ -546,26 +556,26 @@ class _TabletHomeScreen extends StatelessWidget {
             return Stack(
               children: <Widget>[
                 AnimatedPositioned(
-                  left: 0,
-                  top: 0,
-                  bottom: 0,
-                  width: state.expanded ? 0 : homeScreenWidth,
+                  left: Dimens.zero,
+                  top: Dimens.zero,
+                  bottom: Dimens.zero,
+                  width: state.expanded ? Dimens.zero : homeScreenWidth,
                   duration: const Duration(milliseconds: 300),
                   curve: Curves.elasticOut,
                   child: homeScreen,
                 ),
                 Positioned(
-                  left: 24,
-                  bottom: 36,
-                  height: 40,
-                  width: homeScreenWidth - 24,
+                  left: Dimens.pt24,
+                  bottom: Dimens.pt36,
+                  height: Dimens.pt40,
+                  width: homeScreenWidth - Dimens.pt24,
                   child: const CountdownReminder(),
                 ),
                 AnimatedPositioned(
-                  right: 0,
-                  top: 0,
-                  bottom: 0,
-                  left: state.expanded ? 0 : homeScreenWidth,
+                  right: Dimens.zero,
+                  top: Dimens.zero,
+                  bottom: Dimens.zero,
+                  left: state.expanded ? Dimens.zero : homeScreenWidth,
                   duration: const Duration(milliseconds: 300),
                   curve: Curves.elasticOut,
                   child: const _TabletStoryView(),
@@ -586,10 +596,10 @@ class _TabletStoryView extends StatelessWidget {
   Widget build(BuildContext context) {
     return BlocBuilder<SplitViewCubit, SplitViewState>(
       buildWhen: (SplitViewState previous, SplitViewState current) =>
-          previous.storyScreenArgs != current.storyScreenArgs,
+          previous.itemScreenArgs != current.itemScreenArgs,
       builder: (BuildContext context, SplitViewState state) {
-        if (state.storyScreenArgs != null) {
-          return StoryScreen.build(context, state.storyScreenArgs!);
+        if (state.itemScreenArgs != null) {
+          return ItemScreen.build(context, state.itemScreenArgs!);
         }
 
         return Material(

lib/screens/item/widgets/custom_app_bar.dart

@@ -2,16 +2,14 @@ import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'package:flutter_feather_icons/flutter_feather_icons.dart';
 import 'package:hacki/models/models.dart';
-import 'package:hacki/screens/story/widgets/fav_icon_button.dart';
-import 'package:hacki/screens/story/widgets/link_icon_button.dart';
-import 'package:hacki/screens/story/widgets/pin_icon_button.dart';
-import 'package:hacki/screens/story/widgets/scroll_up_icon_button.dart';
+import 'package:hacki/screens/item/widgets/widgets.dart';
+import 'package:hacki/styles/styles.dart';
 
 class CustomAppBar extends AppBar {
   CustomAppBar({
     Key? key,
     required ScrollController scrollController,
-    required Story story,
+    required Item item,
     required Color backgroundColor,
     required Future<bool> Function() onBackgroundTap,
     required Future<bool> Function() onDismiss,
@@ -21,7 +19,7 @@ class CustomAppBar extends AppBar {
   }) : super(
           key: key,
           backgroundColor: backgroundColor,
-          elevation: 0,
+          elevation: Dimens.zero,
           actions: <Widget>[
             if (splitViewEnabled) ...<Widget>[
               IconButton(
@@ -29,7 +27,7 @@ class CustomAppBar extends AppBar {
                   expanded ?? false
                       ? FeatherIcons.minimize2
                       : FeatherIcons.maximize2,
-                  size: 20,
+                  size: TextDimens.pt20,
                 ),
                 onPressed: () {
                   HapticFeedback.lightImpact();
@@ -41,18 +39,19 @@ class CustomAppBar extends AppBar {
             ScrollUpIconButton(
               scrollController: scrollController,
             ),
-            PinIconButton(
-              story: story,
-              onBackgroundTap: onBackgroundTap,
-              onDismiss: onDismiss,
-            ),
+            if (item is Story)
+              PinIconButton(
+                story: item,
+                onBackgroundTap: onBackgroundTap,
+                onDismiss: onDismiss,
+              ),
             FavIconButton(
-              storyId: story.id,
+              storyId: item.id,
               onBackgroundTap: onBackgroundTap,
               onDismiss: onDismiss,
             ),
             LinkIconButton(
-              storyId: story.id,
+              storyId: item.id,
               onBackgroundTap: onBackgroundTap,
               onDismiss: onDismiss,
             ),

lib/screens/item/widgets/fav_icon_button.dart

@@ -6,6 +6,7 @@ import 'package:flutter/services.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
 import 'package:hacki/config/constants.dart';
 import 'package:hacki/cubits/cubits.dart';
+import 'package:hacki/styles/styles.dart';
 
 class FavIconButton extends StatelessWidget {
   const FavIconButton({
@@ -37,17 +38,17 @@ class FavIconButton extends StatelessWidget {
             targetColor: Theme.of(context).primaryColor,
             tapTarget: Icon(
               isFav ? Icons.favorite : Icons.favorite_border,
-              color: Colors.white,
+              color: Palette.white,
             ),
             featureId: Constants.featureAddStoryToFavList,
             title: const Text('Fav a Story'),
             description: const Text(
               'Add it to your favorites.',
-              style: TextStyle(fontSize: 16),
+              style: TextStyle(fontSize: TextDimens.pt16),
             ),
             child: Icon(
               isFav ? Icons.favorite : Icons.favorite_border,
-              color: isFav ? Colors.orange : Theme.of(context).iconTheme.color,
+              color: isFav ? Palette.orange : Theme.of(context).iconTheme.color,
             ),
           ),
           onPressed: () {

lib/screens/item/widgets/link_icon_button.dart

@@ -4,6 +4,7 @@ import 'package:feature_discovery/feature_discovery.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'package:hacki/config/constants.dart';
+import 'package:hacki/styles/styles.dart';
 import 'package:hacki/utils/utils.dart';
 
 class LinkIconButton extends StatelessWidget {
@@ -33,7 +34,7 @@ class LinkIconButton extends StatelessWidget {
         targetColor: Theme.of(context).primaryColor,
         tapTarget: const Icon(
           Icons.stream,
-          color: Colors.white,
+          color: Palette.white,
         ),
         featureId: Constants.featureOpenStoryInWebView,
         title: const Text('Open in Browser'),
@@ -41,7 +42,7 @@ class LinkIconButton extends StatelessWidget {
           'Want more than just reading and replying? '
           'You can tap here to open this story in a '
           'browser.',
-          style: TextStyle(fontSize: 16),
+          style: TextStyle(fontSize: TextDimens.pt16),
         ),
         child: const Icon(
           Icons.stream,

lib/screens/item/widgets/pin_icon_button.dart

@@ -8,6 +8,7 @@ import 'package:flutter_bloc/flutter_bloc.dart';
 import 'package:hacki/config/constants.dart';
 import 'package:hacki/cubits/cubits.dart';
 import 'package:hacki/models/models.dart';
+import 'package:hacki/styles/styles.dart';
 
 class PinIconButton extends StatelessWidget {
   const PinIconButton({
@@ -43,7 +44,7 @@ class PinIconButton extends StatelessWidget {
                 targetColor: Theme.of(context).primaryColor,
                 tapTarget: Icon(
                   pinned ? Icons.push_pin : Icons.push_pin_outlined,
-                  color: Colors.white,
+                  color: Palette.white,
                 ),
                 featureId: Constants.featurePinToTop,
                 title: const Text('Pin a Story'),
@@ -51,12 +52,12 @@ class PinIconButton extends StatelessWidget {
                   'Pin this story to the top of your '
                   'home screen so that you can come'
                   ' back later.',
-                  style: TextStyle(fontSize: 16),
+                  style: TextStyle(fontSize: TextDimens.pt16),
                 ),
                 child: Icon(
                   pinned ? Icons.push_pin : Icons.push_pin_outlined,
                   color: pinned
-                      ? Colors.orange
+                      ? Palette.orange
                       : Theme.of(context).iconTheme.color,
                 ),
               ),

lib/screens/item/widgets/poll_view.dart

@@ -5,6 +5,7 @@ import 'package:flutter_fadein/flutter_fadein.dart';
 import 'package:hacki/blocs/auth/auth_bloc.dart';
 import 'package:hacki/cubits/cubits.dart';
 import 'package:hacki/models/models.dart';
+import 'package:hacki/styles/styles.dart';
 
 class PollView extends StatelessWidget {
   const PollView({
@@ -21,29 +22,29 @@ class PollView extends StatelessWidget {
         return Column(
           children: <Widget>[
             const SizedBox(
-              height: 24,
+              height: Dimens.pt24,
             ),
             if (state.status == PollStatus.loading) ...<Widget>[
               const LinearProgressIndicator(),
               const SizedBox(
-                height: 24,
+                height: Dimens.pt24,
               ),
             ] else ...<Widget>[
               Row(
                 children: <Widget>[
                   const SizedBox(
-                    width: 24,
+                    width: Dimens.pt24,
                   ),
                   Text(
                     'Total votes: ${state.totalVotes}',
                     style: const TextStyle(
-                      fontSize: 14,
+                      fontSize: TextDimens.pt14,
                     ),
                   ),
                 ],
               ),
               const SizedBox(
-                height: 12,
+                height: Dimens.pt12,
               ),
             ],
             for (final PollOption option in state.pollOptions)
@@ -97,9 +98,9 @@ class PollView extends StatelessWidget {
                     builder: (BuildContext context, VoteState voteState) {
                       return Padding(
                         padding: const EdgeInsets.only(
-                          left: 12,
-                          right: 24,
-                          bottom: 4,
+                          left: Dimens.pt12,
+                          right: Dimens.pt24,
+                          bottom: Dimens.pt4,
                         ),
                         child: Row(
                           children: <Widget>[
@@ -111,9 +112,9 @@ class PollView extends StatelessWidget {
                               icon: Icon(
                                 Icons.arrow_drop_up,
                                 color: voteState.vote == Vote.up
-                                    ? Colors.orange
-                                    : Colors.grey,
-                                size: 36,
+                                    ? Palette.orange
+                                    : Palette.grey,
+                                size: TextDimens.pt36,
                               ),
                             ),
                             Expanded(
@@ -126,16 +127,16 @@ class PollView extends StatelessWidget {
                                   Text(
                                     '''${option.score} vote${option.score > 1 ? 's' : ''}''',
                                     style: const TextStyle(
-                                      color: Colors.grey,
-                                      fontSize: 12,
+                                      color: Palette.grey,
+                                      fontSize: TextDimens.pt12,
                                     ),
                                   ),
                                   const SizedBox(
-                                    height: 4,
+                                    height: Dimens.pt4,
                                   ),
                                   LinearProgressIndicator(
                                     value: option.ratio,
-                                    color: Colors.deepOrange,
+                                    color: Palette.deepOrange,
                                   ),
                                 ],
                               ),
@@ -161,7 +162,7 @@ class PollView extends StatelessWidget {
   }) {
     ScaffoldMessenger.of(context).showSnackBar(
       SnackBar(
-        backgroundColor: Colors.deepOrange,
+        backgroundColor: Palette.deepOrange,
         content: Text(content),
         action: action != null && label != null
             ? SnackBarAction(

lib/screens/item/widgets/reply_box.dart

@@ -6,6 +6,7 @@ import 'package:flutter_feather_icons/flutter_feather_icons.dart';
 import 'package:flutter_linkify/flutter_linkify.dart';
 import 'package:hacki/cubits/cubits.dart';
 import 'package:hacki/models/item.dart';
+import 'package:hacki/styles/styles.dart';
 import 'package:hacki/utils/link_util.dart';
 
 class ReplyBox extends StatefulWidget {
@@ -34,6 +35,8 @@ class _ReplyBoxState extends State<ReplyBox> {
   bool expanded = false;
   double? expandedHeight;
 
+  static const double _collapsedHeight = 100;
+
   @override
   Widget build(BuildContext context) {
     expandedHeight ??= MediaQuery.of(context).size.height;
@@ -53,20 +56,21 @@ class _ReplyBoxState extends State<ReplyBox> {
               return Padding(
                 padding: EdgeInsets.only(
                   bottom: expanded
-                      ? 0
+                      ? Dimens.zero
                       : widget.splitViewEnabled
                           ? MediaQuery.of(context).viewInsets.bottom
-                          : 0,
+                          : Dimens.zero,
                 ),
                 child: AnimatedContainer(
-                  height: expanded ? expandedHeight : 100,
+                  height: expanded ? expandedHeight : _collapsedHeight,
                   duration: const Duration(milliseconds: 200),
                   decoration: BoxDecoration(
                     boxShadow: <BoxShadow>[
                       if (!context.read<SplitViewCubit>().state.enabled)
                         BoxShadow(
-                          color: expanded ? Colors.transparent : Colors.black26,
-                          blurRadius: 40,
+                          color:
+                              expanded ? Palette.transparent : Palette.black26,
+                          blurRadius: Dimens.pt40,
                         ),
                     ],
                   ),
@@ -75,28 +79,32 @@ class _ReplyBoxState extends State<ReplyBox> {
                       children: <Widget>[
                         if (context.read<SplitViewCubit>().state.enabled)
                           const Divider(
-                            height: 0,
+                            height: Dimens.zero,
                           ),
                         AnimatedContainer(
-                          height: expanded ? 36 : 0,
+                          height: expanded ? Dimens.pt36 : Dimens.zero,
                           duration: const Duration(milliseconds: 200),
                         ),
                         Row(
                           children: <Widget>[
-                            Padding(
-                              padding: const EdgeInsets.symmetric(
-                                horizontal: 12,
-                                vertical: 8,
-                              ),
-                              child: Text(
-                                replyingTo == null
-                                    ? 'Editing'
-                                    : 'Replying '
-                                        '${replyingTo.by}',
-                                style: const TextStyle(color: Colors.grey),
+                            Expanded(
+                              child: Padding(
+                                padding: const EdgeInsets.only(
+                                  left: Dimens.pt12,
+                                  top: Dimens.pt8,
+                                  bottom: Dimens.pt8,
+                                ),
+                                child: Text(
+                                  replyingTo == null
+                                      ? 'Editing'
+                                      : 'Replying '
+                                          '${replyingTo.by}',
+                                  style: const TextStyle(color: Palette.grey),
+                                  maxLines: 1,
+                                  overflow: TextOverflow.ellipsis,
+                                ),
                               ),
                             ),
-                            const Spacer(),
                             if (!isLoading) ...<Widget>[
                               ...<Widget>[
                                 if (replyingTo != null)
@@ -107,8 +115,8 @@ class _ReplyBoxState extends State<ReplyBox> {
                                       key: const Key('quote'),
                                       icon: const Icon(
                                         FeatherIcons.code,
-                                        color: Colors.orange,
-                                        size: 18,
+                                        color: Palette.orange,
+                                        size: TextDimens.pt18,
                                       ),
                                       onPressed:
                                           expanded ? showTextPopup : null,
@@ -120,8 +128,8 @@ class _ReplyBoxState extends State<ReplyBox> {
                                     expanded
                                         ? FeatherIcons.minimize2
                                         : FeatherIcons.maximize2,
-                                    color: Colors.orange,
-                                    size: 18,
+                                    color: Palette.orange,
+                                    size: TextDimens.pt18,
                                   ),
                                   onPressed: () {
                                     setState(() {
@@ -134,7 +142,7 @@ class _ReplyBoxState extends State<ReplyBox> {
                                 key: const Key('close'),
                                 icon: const Icon(
                                   Icons.close,
-                                  color: Colors.orange,
+                                  color: Palette.orange,
                                 ),
                                 onPressed: () {
                                   widget.onCloseTapped();
@@ -145,15 +153,15 @@ class _ReplyBoxState extends State<ReplyBox> {
                             if (isLoading)
                               const Padding(
                                 padding: EdgeInsets.symmetric(
-                                  vertical: 12,
-                                  horizontal: 16,
+                                  vertical: Dimens.pt12,
+                                  horizontal: Dimens.pt16,
                                 ),
                                 child: SizedBox(
-                                  height: 24,
-                                  width: 24,
+                                  height: Dimens.pt24,
+                                  width: Dimens.pt24,
                                   child: CircularProgressIndicator(
-                                    color: Colors.orange,
-                                    strokeWidth: 2,
+                                    color: Palette.orange,
+                                    strokeWidth: Dimens.pt2,
                                   ),
                                 ),
                               )
@@ -162,7 +170,7 @@ class _ReplyBoxState extends State<ReplyBox> {
                                 key: const Key('send'),
                                 icon: const Icon(
                                   Icons.send,
-                                  color: Colors.orange,
+                                  color: Palette.orange,
                                 ),
                                 onPressed: () {
                                   widget.onSendTapped();
@@ -173,7 +181,9 @@ class _ReplyBoxState extends State<ReplyBox> {
                         ),
                         Expanded(
                           child: Padding(
-                            padding: const EdgeInsets.symmetric(horizontal: 16),
+                            padding: const EdgeInsets.symmetric(
+                              horizontal: Dimens.pt16,
+                            ),
                             child: TextField(
                               focusNode: widget.focusNode,
                               controller: widget.textEditingController,
@@ -183,7 +193,7 @@ class _ReplyBoxState extends State<ReplyBox> {
                                 contentPadding: EdgeInsets.zero,
                                 hintText: '...',
                                 hintStyle: TextStyle(
-                                  color: Colors.grey,
+                                  color: Palette.grey,
                                 ),
                                 focusedBorder: InputBorder.none,
                                 border: InputBorder.none,
@@ -216,8 +226,8 @@ class _ReplyBoxState extends State<ReplyBox> {
       builder: (_) {
         return AlertDialog(
           insetPadding: const EdgeInsets.symmetric(
-            horizontal: 12,
-            vertical: 24,
+            horizontal: Dimens.pt12,
+            vertical: Dimens.pt24,
           ),
           contentPadding: EdgeInsets.zero,
           content: ConstrainedBox(
@@ -229,14 +239,14 @@ class _ReplyBoxState extends State<ReplyBox> {
               children: <Widget>[
                 Padding(
                   padding: const EdgeInsets.only(
-                    left: 12,
-                    top: 6,
+                    left: Dimens.pt12,
+                    top: Dimens.pt6,
                   ),
                   child: Row(
                     children: <Widget>[
                       Text(
                         replyingTo?.by ?? '',
-                        style: const TextStyle(color: Colors.grey),
+                        style: const TextStyle(color: Palette.grey),
                       ),
                       const Spacer(),
                       TextButton(
@@ -248,8 +258,8 @@ class _ReplyBoxState extends State<ReplyBox> {
                       IconButton(
                         icon: const Icon(
                           Icons.close,
-                          color: Colors.orange,
-                          size: 18,
+                          color: Palette.orange,
+                          size: TextDimens.pt18,
                         ),
                         onPressed: () => Navigator.pop(context),
                       ),
@@ -261,17 +271,17 @@ class _ReplyBoxState extends State<ReplyBox> {
                     thumbVisibility: true,
                     child: Padding(
                       padding: const EdgeInsets.only(
-                        left: 12,
-                        right: 6,
-                        top: 6,
+                        left: Dimens.pt12,
+                        right: Dimens.pt6,
+                        top: Dimens.pt6,
                       ),
                       child: SingleChildScrollView(
                         child: SelectableLinkify(
                           scrollPhysics: const NeverScrollableScrollPhysics(),
                           linkStyle: TextStyle(
-                            fontSize:
-                                MediaQuery.of(context).textScaleFactor * 15,
-                            color: Colors.orange,
+                            fontSize: MediaQuery.of(context).textScaleFactor *
+                                TextDimens.pt15,
+                            color: Palette.orange,
                           ),
                           onOpen: (LinkableElement link) =>
                               LinkUtil.launch(link.url),

lib/screens/item/widgets/scroll_up_icon_button.dart

@@ -1,5 +1,6 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_feather_icons/flutter_feather_icons.dart';
+import 'package:hacki/styles/styles.dart';
 
 class ScrollUpIconButton extends StatefulWidget {
   const ScrollUpIconButton({
@@ -35,8 +36,8 @@ class _ScrollUpIconButtonState extends State<ScrollUpIconButton> {
         child: IconButton(
           icon: const Icon(
             FeatherIcons.chevronsUp,
-            color: Colors.orange,
-            size: 26,
+            color: Palette.orange,
+            size: TextDimens.pt26,
           ),
           onPressed: () {
             final double curPos = widget.scrollController.offset;

lib/screens/profile/profile_screen.dart

@@ -18,6 +18,7 @@ import 'package:hacki/repositories/repositories.dart';
 import 'package:hacki/screens/profile/widgets/widgets.dart';
 import 'package:hacki/screens/screens.dart';
 import 'package:hacki/screens/widgets/widgets.dart';
+import 'package:hacki/styles/styles.dart';
 import 'package:hacki/utils/utils.dart';
 import 'package:pull_to_refresh/pull_to_refresh.dart';
 import 'package:tuple/tuple.dart';
@@ -91,7 +92,7 @@ class _ProfileScreenState extends State<ProfileScreen>
                 return Stack(
                   children: <Widget>[
                     Positioned.fill(
-                      top: 50,
+                      top: Dimens.pt50,
                       child: Visibility(
                         visible: pageType == _PageType.history,
                         child: BlocConsumer<HistoryCubit, HistoryState>(
@@ -135,8 +136,8 @@ class _ProfileScreenState extends State<ProfileScreen>
                               },
                               onTap: (Item item) {
                                 if (item is Story) {
-                                  goToStoryScreen(
-                                    args: StoryScreenArgs(story: item),
+                                  goToItemScreen(
+                                    args: ItemScreenArgs(item: item),
                                   );
                                 } else if (item is Comment) {
                                   onCommentTapped(item);
@@ -148,7 +149,7 @@ class _ProfileScreenState extends State<ProfileScreen>
                       ),
                     ),
                     Positioned.fill(
-                      top: 50,
+                      top: Dimens.pt50,
                       child: Visibility(
                         visible: pageType == _PageType.fav,
                         child: BlocConsumer<FavCubit, FavState>(
@@ -160,7 +161,7 @@ class _ProfileScreenState extends State<ProfileScreen>
                             }
                           },
                           builder: (BuildContext context, FavState favState) {
-                            if (favState.favStories.isEmpty &&
+                            if (favState.favItems.isEmpty &&
                                 favState.status != FavStatus.loading) {
                               return const CenteredMessageView(
                                 content:
@@ -169,12 +170,13 @@ class _ProfileScreenState extends State<ProfileScreen>
                                     'News account if you are logged in.',
                               );
                             }
-                            return ItemsListView<Story>(
+                            return ItemsListView<Item>(
                               showWebPreview:
                                   preferenceState.showComplexStoryTile,
                               showMetadata: preferenceState.showMetadata,
+                              useCommentTile: true,
                               refreshController: refreshControllerFav,
-                              items: favState.favStories,
+                              items: favState.favItems,
                               onRefresh: () {
                                 HapticFeedback.lightImpact();
                                 context.read<FavCubit>().refresh();
@@ -182,8 +184,8 @@ class _ProfileScreenState extends State<ProfileScreen>
                               onLoadMore: () {
                                 context.read<FavCubit>().loadMore();
                               },
-                              onTap: (Story story) => goToStoryScreen(
-                                args: StoryScreenArgs(story: story),
+                              onTap: (Item item) => goToItemScreen(
+                                args: ItemScreenArgs(item: item),
                               ),
                             );
                           },
@@ -191,7 +193,7 @@ class _ProfileScreenState extends State<ProfileScreen>
                       ),
                     ),
                     Positioned.fill(
-                      top: 50,
+                      top: Dimens.pt50,
                       child: Visibility(
                         visible: pageType == _PageType.search,
                         maintainState: true,
@@ -199,7 +201,7 @@ class _ProfileScreenState extends State<ProfileScreen>
                       ),
                     ),
                     Positioned.fill(
-                      top: 50,
+                      top: Dimens.pt50,
                       child: Visibility(
                         visible: pageType == _PageType.notification,
                         child: notificationState.comments.isEmpty
@@ -240,7 +242,7 @@ class _ProfileScreenState extends State<ProfileScreen>
                       ),
                     ),
                     Positioned.fill(
-                      top: 50,
+                      top: Dimens.pt50,
                       child: Visibility(
                         visible: pageType == _PageType.settings,
                         child: SingleChildScrollView(
@@ -279,7 +281,7 @@ class _ProfileScreenState extends State<ProfileScreen>
                                       .read<PreferenceCubit>()
                                       .toggleNotificationMode();
                                 },
-                                activeColor: Colors.orange,
+                                activeColor: Palette.orange,
                               ),
                               SwitchListTile(
                                 title: const Text('Complex Story Tile'),
@@ -293,7 +295,7 @@ class _ProfileScreenState extends State<ProfileScreen>
                                       .read<PreferenceCubit>()
                                       .toggleDisplayMode();
                                 },
-                                activeColor: Colors.orange,
+                                activeColor: Palette.orange,
                               ),
                               SwitchListTile(
                                 title: const Text('Show Metadata'),
@@ -308,7 +310,7 @@ class _ProfileScreenState extends State<ProfileScreen>
                                       .read<PreferenceCubit>()
                                       .toggleMetadataMode();
                                 },
-                                activeColor: Colors.orange,
+                                activeColor: Palette.orange,
                               ),
                               SwitchListTile(
                                 title: const Text('Show Web Page First'),
@@ -323,7 +325,7 @@ class _ProfileScreenState extends State<ProfileScreen>
                                       .read<PreferenceCubit>()
                                       .toggleNavigationMode();
                                 },
-                                activeColor: Colors.orange,
+                                activeColor: Palette.orange,
                               ),
                               if (Platform.isIOS)
                                 SwitchListTile(
@@ -339,7 +341,7 @@ class _ProfileScreenState extends State<ProfileScreen>
                                         .read<PreferenceCubit>()
                                         .toggleReaderMode();
                                   },
-                                  activeColor: Colors.orange,
+                                  activeColor: Palette.orange,
                                 ),
                               SwitchListTile(
                                 title: const Text('Mark Read Stories'),
@@ -360,7 +362,7 @@ class _ProfileScreenState extends State<ProfileScreen>
                                       .read<PreferenceCubit>()
                                       .toggleMarkReadStoriesMode();
                                 },
-                                activeColor: Colors.orange,
+                                activeColor: Palette.orange,
                               ),
                               SwitchListTile(
                                 title: const Text('Eye Candy'),
@@ -372,7 +374,7 @@ class _ProfileScreenState extends State<ProfileScreen>
                                       .read<PreferenceCubit>()
                                       .toggleEyeCandyMode();
                                 },
-                                activeColor: Colors.orange,
+                                activeColor: Palette.orange,
                               ),
                               SwitchListTile(
                                 title: const Text('True Dark Mode'),
@@ -386,7 +388,7 @@ class _ProfileScreenState extends State<ProfileScreen>
                                       .read<PreferenceCubit>()
                                       .toggleTrueDarkMode();
                                 },
-                                activeColor: Colors.orange,
+                                activeColor: Palette.orange,
                               ),
                               ListTile(
                                 title: const Text(
@@ -408,15 +410,17 @@ class _ProfileScreenState extends State<ProfileScreen>
                                   showAboutDialog(
                                     context: context,
                                     applicationName: 'Hacki',
-                                    applicationVersion: 'v0.2.20',
+                                    applicationVersion: 'v0.2.26',
                                     applicationIcon: ClipRRect(
                                       borderRadius: const BorderRadius.all(
-                                        Radius.circular(12),
+                                        Radius.circular(
+                                          Dimens.pt12,
+                                        ),
                                       ),
                                       child: Image.asset(
                                         Constants.hackiIconPath,
-                                        height: 50,
-                                        width: 50,
+                                        height: Dimens.pt50,
+                                        width: Dimens.pt50,
                                       ),
                                     ),
                                     children: <Widget>[
@@ -430,7 +434,7 @@ class _ProfileScreenState extends State<ProfileScreen>
                                               FontAwesomeIcons.addressCard,
                                             ),
                                             SizedBox(
-                                              width: 12,
+                                              width: Dimens.pt12,
                                             ),
                                             Text('Developer'),
                                           ],
@@ -446,7 +450,7 @@ class _ProfileScreenState extends State<ProfileScreen>
                                               FontAwesomeIcons.github,
                                             ),
                                             SizedBox(
-                                              width: 12,
+                                              width: Dimens.pt12,
                                             ),
                                             Text('Source code'),
                                           ],
@@ -464,7 +468,7 @@ class _ProfileScreenState extends State<ProfileScreen>
                                               Icons.thumb_up,
                                             ),
                                             SizedBox(
-                                              width: 12,
+                                              width: Dimens.pt12,
                                             ),
                                             Text('Like the app?'),
                                           ],
@@ -480,7 +484,7 @@ class _ProfileScreenState extends State<ProfileScreen>
                                               FeatherIcons.coffee,
                                             ),
                                             SizedBox(
-                                              width: 12,
+                                              width: Dimens.pt12,
                                             ),
                                             Text('Buy me a coffee'),
                                           ],
@@ -491,7 +495,7 @@ class _ProfileScreenState extends State<ProfileScreen>
                                 },
                               ),
                               const SizedBox(
-                                height: 48,
+                                height: Dimens.pt48,
                               ),
                             ],
                           ),
@@ -506,7 +510,7 @@ class _ProfileScreenState extends State<ProfileScreen>
                         child: Row(
                           children: <Widget>[
                             const SizedBox(
-                              width: 12,
+                              width: Dimens.pt12,
                             ),
                             CustomChip(
                               label: 'Submit',
@@ -525,7 +529,7 @@ class _ProfileScreenState extends State<ProfileScreen>
                               },
                             ),
                             const SizedBox(
-                              width: 12,
+                              width: Dimens.pt12,
                             ),
                             CustomChip(
                               label: 'Inbox : '
@@ -541,7 +545,7 @@ class _ProfileScreenState extends State<ProfileScreen>
                               },
                             ),
                             const SizedBox(
-                              width: 12,
+                              width: Dimens.pt12,
                             ),
                             CustomChip(
                               label: 'Favorite',
@@ -555,7 +559,7 @@ class _ProfileScreenState extends State<ProfileScreen>
                               },
                             ),
                             const SizedBox(
-                              width: 12,
+                              width: Dimens.pt12,
                             ),
                             CustomChip(
                               label: 'Submitted',
@@ -569,7 +573,7 @@ class _ProfileScreenState extends State<ProfileScreen>
                               },
                             ),
                             const SizedBox(
-                              width: 12,
+                              width: Dimens.pt12,
                             ),
                             CustomChip(
                               label: 'Search',
@@ -583,7 +587,7 @@ class _ProfileScreenState extends State<ProfileScreen>
                               },
                             ),
                             const SizedBox(
-                              width: 12,
+                              width: Dimens.pt12,
                             ),
                             CustomChip(
                               label: 'Settings',
@@ -597,7 +601,7 @@ class _ProfileScreenState extends State<ProfileScreen>
                               },
                             ),
                             const SizedBox(
-                              width: 12,
+                              width: Dimens.pt12,
                             ),
                           ],
                         ),
@@ -665,7 +669,7 @@ class _ProfileScreenState extends State<ProfileScreen>
               child: const Text(
                 'Cancel',
                 style: TextStyle(
-                  color: Colors.orange,
+                  color: Palette.orange,
                 ),
               ),
             ),
@@ -676,7 +680,7 @@ class _ProfileScreenState extends State<ProfileScreen>
                     .get<SembastRepository>()
                     .deleteAllCachedComments()
                     .whenComplete(
-                      locator.get<CacheRepository>().deleteAll,
+                      locator.get<OfflineRepository>().deleteAll,
                     )
                     .whenComplete(
                       locator.get<PreferenceRepository>().clearAllReadStories,
@@ -705,9 +709,9 @@ class _ProfileScreenState extends State<ProfileScreen>
           .fetchParentStoryWithComments(id: comment.parent)
           .then((Tuple2<Story, List<Comment>>? tuple) {
         if (tuple != null && mounted) {
-          goToStoryScreen(
-            args: StoryScreenArgs(
-              story: tuple.item1,
+          goToItemScreen(
+            args: ItemScreenArgs(
+              item: tuple.item1,
               targetComments: tuple.item2.isEmpty
                   ? <Comment>[comment]
                   : <Comment>[
@@ -742,64 +746,64 @@ class _ProfileScreenState extends State<ProfileScreen>
               children: <Widget>[
                 if (state.status == AuthStatus.loading)
                   const SizedBox(
-                    height: 36,
-                    width: 36,
+                    height: Dimens.pt36,
+                    width: Dimens.pt36,
                     child: Center(
                       child: CircularProgressIndicator(
-                        color: Colors.orange,
+                        color: Palette.orange,
                       ),
                     ),
                   )
                 else if (!state.isLoggedIn) ...<Widget>[
                   Padding(
                     padding: const EdgeInsets.symmetric(
-                      horizontal: 18,
+                      horizontal: Dimens.pt18,
                     ),
                     child: TextField(
                       controller: usernameController,
-                      cursorColor: Colors.orange,
+                      cursorColor: Palette.orange,
                       autocorrect: false,
                       decoration: const InputDecoration(
                         hintText: 'Username',
                         focusedBorder: UnderlineInputBorder(
-                          borderSide: BorderSide(color: Colors.orange),
+                          borderSide: BorderSide(color: Palette.orange),
                         ),
                       ),
                     ),
                   ),
                   const SizedBox(
-                    height: 16,
+                    height: Dimens.pt16,
                   ),
                   Padding(
                     padding: const EdgeInsets.symmetric(
-                      horizontal: 18,
+                      horizontal: Dimens.pt18,
                     ),
                     child: TextField(
                       controller: passwordController,
-                      cursorColor: Colors.orange,
+                      cursorColor: Palette.orange,
                       obscureText: true,
                       autocorrect: false,
                       decoration: const InputDecoration(
                         hintText: 'Password',
                         focusedBorder: UnderlineInputBorder(
-                          borderSide: BorderSide(color: Colors.orange),
+                          borderSide: BorderSide(color: Palette.orange),
                         ),
                       ),
                     ),
                   ),
                   const SizedBox(
-                    height: 16,
+                    height: Dimens.pt16,
                   ),
                   if (state.status == AuthStatus.failure)
                     const Padding(
                       padding: EdgeInsets.only(
-                        left: 18,
+                        left: Dimens.pt18,
                       ),
                       child: Text(
                         'Something went wrong...',
                         style: TextStyle(
-                          color: Colors.grey,
-                          fontSize: 12,
+                          color: Palette.grey,
+                          fontSize: TextDimens.pt12,
                         ),
                       ),
                     ),
@@ -813,8 +817,8 @@ class _ProfileScreenState extends State<ProfileScreen>
                               ? Icons.check_box
                               : Icons.check_box_outline_blank,
                           color: state.agreedToEULA
-                              ? Colors.deepOrange
-                              : Colors.grey,
+                              ? Palette.deepOrange
+                              : Palette.grey,
                         ),
                         onPressed: () => context
                             .read<AuthBloc>()
@@ -839,7 +843,7 @@ class _ProfileScreenState extends State<ProfileScreen>
                                   child: const Text(
                                     'End User Agreement',
                                     style: TextStyle(
-                                      color: Colors.deepOrange,
+                                      color: Palette.deepOrange,
                                       decoration: TextDecoration.underline,
                                       fontWeight: FontWeight.w600,
                                     ),
@@ -854,7 +858,7 @@ class _ProfileScreenState extends State<ProfileScreen>
                   ),
                   Padding(
                     padding: const EdgeInsets.only(
-                      right: 12,
+                      right: Dimens.pt12,
                     ),
                     child: ButtonBar(
                       children: <Widget>[
@@ -885,15 +889,15 @@ class _ProfileScreenState extends State<ProfileScreen>
                           style: ButtonStyle(
                             backgroundColor: MaterialStateProperty.all(
                               state.agreedToEULA
-                                  ? Colors.deepOrange
-                                  : Colors.grey,
+                                  ? Palette.deepOrange
+                                  : Palette.grey,
                             ),
                           ),
                           child: const Text(
                             'Log in',
                             style: TextStyle(
                               fontWeight: FontWeight.bold,
-                              color: Colors.white,
+                              color: Palette.white,
                             ),
                           ),
                         ),
@@ -920,7 +924,7 @@ class _ProfileScreenState extends State<ProfileScreen>
           content: Text(
             'Log out as ${authBloc.state.username}?',
             style: const TextStyle(
-              fontSize: 16,
+              fontSize: TextDimens.pt16,
             ),
           ),
           actions: <Widget>[

lib/screens/profile/widgets/centered_message_view.dart

@@ -1,4 +1,5 @@
 import 'package:flutter/material.dart';
+import 'package:hacki/styles/styles.dart';
 
 class CenteredMessageView extends StatelessWidget {
   const CenteredMessageView({
@@ -12,14 +13,14 @@ class CenteredMessageView extends StatelessWidget {
   Widget build(BuildContext context) {
     return Padding(
       padding: const EdgeInsets.only(
-        top: 120,
-        left: 40,
-        right: 40,
+        top: Dimens.pt120,
+        left: Dimens.pt40,
+        right: Dimens.pt40,
       ),
       child: Text(
         content,
         textAlign: TextAlign.center,
-        style: const TextStyle(color: Colors.grey),
+        style: const TextStyle(color: Palette.grey),
       ),
     );
   }

lib/screens/profile/widgets/inbox_view.dart

@@ -3,6 +3,7 @@ import 'package:flutter_fadein/flutter_fadein.dart';
 import 'package:flutter_linkify/flutter_linkify.dart';
 import 'package:hacki/models/models.dart';
 import 'package:hacki/screens/widgets/widgets.dart';
+import 'package:hacki/styles/styles.dart';
 import 'package:hacki/utils/link_util.dart';
 import 'package:pull_to_refresh/pull_to_refresh.dart';
 
@@ -29,8 +30,8 @@ class InboxView extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     final Color textColor = Theme.of(context).brightness == Brightness.dark
-        ? Colors.white
-        : Colors.black;
+        ? Palette.white
+        : Palette.black;
     return Column(
       children: <Widget>[
         if (unreadCommentsIds.isNotEmpty)
@@ -42,12 +43,14 @@ class InboxView extends StatelessWidget {
           child: SmartRefresher(
             enablePullUp: true,
             header: const WaterDropMaterialHeader(
-              backgroundColor: Colors.orange,
+              backgroundColor: Palette.orange,
             ),
             footer: CustomFooter(
               loadStyle: LoadStyle.ShowWhenLoading,
               builder: (BuildContext context, LoadStatus? mode) {
-                Widget body;
+                const double height = 55;
+                late final Widget body;
+
                 if (mode == LoadStatus.loading) {
                   body = const CustomCircularProgressIndicator();
                 } else if (mode == LoadStatus.failed) {
@@ -58,7 +61,7 @@ class InboxView extends StatelessWidget {
                   body = const SizedBox.shrink();
                 }
                 return SizedBox(
-                  height: 55,
+                  height: height,
                   child: Center(child: body),
                 );
               },
@@ -72,7 +75,9 @@ class InboxView extends StatelessWidget {
                   return <Widget>[
                     FadeIn(
                       child: Padding(
-                        padding: const EdgeInsets.only(left: 6),
+                        padding: const EdgeInsets.only(
+                          left: Dimens.pt6,
+                        ),
                         child: InkWell(
                           onTap: () => onCommentTapped(e),
                           child: Padding(
@@ -87,8 +92,8 @@ class InboxView extends StatelessWidget {
                                     Expanded(
                                       child: Padding(
                                         padding: const EdgeInsets.symmetric(
-                                          vertical: 8,
-                                          horizontal: 6,
+                                          vertical: Dimens.pt8,
+                                          horizontal: Dimens.pt6,
                                         ),
                                         child: Linkify(
                                           text: '${e.by} : ${e.text}',
@@ -96,13 +101,13 @@ class InboxView extends StatelessWidget {
                                             color:
                                                 unreadCommentsIds.contains(e.id)
                                                     ? textColor
-                                                    : Colors.grey,
+                                                    : Palette.grey,
                                           ),
                                           linkStyle: TextStyle(
                                             color:
                                                 unreadCommentsIds.contains(e.id)
-                                                    ? Colors.orange
-                                                    : Colors.orange
+                                                    ? Palette.orange
+                                                    : Palette.orange
                                                         .withOpacity(0.6),
                                           ),
                                           maxLines: 4,
@@ -116,18 +121,18 @@ class InboxView extends StatelessWidget {
                                         Text(
                                           e.postedDate,
                                           style: const TextStyle(
-                                            color: Colors.grey,
+                                            color: Palette.grey,
                                           ),
                                         ),
                                         const SizedBox(
-                                          width: 12,
+                                          width: Dimens.pt12,
                                         ),
                                       ],
                                     ),
                                   ],
                                 ),
                                 const Divider(
-                                  height: 0,
+                                  height: Dimens.zero,
                                 ),
                               ],
                             ),
@@ -136,12 +141,12 @@ class InboxView extends StatelessWidget {
                       ),
                     ),
                     const Divider(
-                      height: 0,
+                      height: Dimens.zero,
                     ),
                   ];
                 }).expand((List<Widget> element) => element),
                 const SizedBox(
-                  height: 40,
+                  height: Dimens.pt40,
                 ),
               ],
             ),

lib/screens/profile/widgets/offline_list_tile.dart

@@ -3,6 +3,7 @@ import 'package:flutter/material.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
 import 'package:hacki/blocs/blocs.dart';
 import 'package:hacki/screens/widgets/widgets.dart';
+import 'package:hacki/styles/styles.dart';
 import 'package:wakelock/wakelock.dart';
 
 class OfflineListTile extends StatelessWidget {
@@ -32,8 +33,8 @@ class OfflineListTile extends StatelessWidget {
         final Widget trailingWidget = () {
           if (downloading) {
             return const SizedBox(
-              height: 24,
-              width: 24,
+              height: Dimens.pt24,
+              width: Dimens.pt24,
               child: CustomCircularProgressIndicator(),
             );
           } else if (downloaded) {

lib/screens/screens.dart

@@ -1,6 +1,6 @@
 export 'home_screen.dart';
+export 'item/item_screen.dart';
 export 'profile/profile_screen.dart';
 export 'search/search_screen.dart';
-export 'story/story_screen.dart';
 export 'submit/submit_screen.dart';
 export 'web_view/web_view_screen.dart';

lib/screens/search/search_screen.dart

@@ -7,6 +7,7 @@ import 'package:hacki/models/models.dart';
 import 'package:hacki/screens/screens.dart';
 import 'package:hacki/screens/search/widgets/widgets.dart';
 import 'package:hacki/screens/widgets/widgets.dart';
+import 'package:hacki/styles/styles.dart';
 import 'package:hacki/utils/utils.dart';
 import 'package:pull_to_refresh/pull_to_refresh.dart';
 
@@ -38,14 +39,16 @@ class _SearchScreenState extends State<SearchScreen> {
                 mainAxisSize: MainAxisSize.min,
                 children: <Widget>[
                   Padding(
-                    padding: const EdgeInsets.symmetric(horizontal: 12),
+                    padding: const EdgeInsets.symmetric(
+                      horizontal: Dimens.pt12,
+                    ),
                     child: TextField(
-                      cursorColor: Colors.orange,
+                      cursorColor: Palette.orange,
                       autocorrect: false,
                       decoration: const InputDecoration(
                         hintText: 'Search Hacker News',
                         focusedBorder: UnderlineInputBorder(
-                          borderSide: BorderSide(color: Colors.orange),
+                          borderSide: BorderSide(color: Palette.orange),
                         ),
                       ),
                       onChanged: (String val) {
@@ -58,7 +61,7 @@ class _SearchScreenState extends State<SearchScreen> {
                     ),
                   ),
                   const SizedBox(
-                    height: 6,
+                    height: Dimens.pt6,
                   ),
                   SingleChildScrollView(
                     scrollDirection: Axis.horizontal,
@@ -83,7 +86,7 @@ class _SearchScreenState extends State<SearchScreen> {
                               .removeFilter<DateTimeRangeFilter>,
                         ),
                         const SizedBox(
-                          width: 8,
+                          width: Dimens.pt8,
                         ),
                         CustomChip(
                           onSelected: (_) =>
@@ -92,7 +95,7 @@ class _SearchScreenState extends State<SearchScreen> {
                           label: '''newest first''',
                         ),
                         const SizedBox(
-                          width: 8,
+                          width: Dimens.pt8,
                         ),
                         for (final CustomDateTimeRange range
                             in CustomDateTimeRange.values) ...<Widget>[
@@ -107,7 +110,7 @@ class _SearchScreenState extends State<SearchScreen> {
                                     ),
                           ),
                           const SizedBox(
-                            width: 8,
+                            width: Dimens.pt8,
                           ),
                         ],
                       ],
@@ -116,7 +119,7 @@ class _SearchScreenState extends State<SearchScreen> {
                   if (state.status == SearchStatus.loading &&
                       state.results.isEmpty) ...<Widget>[
                     const SizedBox(
-                      height: 100,
+                      height: Dimens.pt100,
                     ),
                     const CustomCircularProgressIndicator(),
                   ],
@@ -125,12 +128,14 @@ class _SearchScreenState extends State<SearchScreen> {
                       enablePullDown: false,
                       enablePullUp: true,
                       header: const WaterDropMaterialHeader(
-                        backgroundColor: Colors.orange,
+                        backgroundColor: Palette.orange,
                       ),
                       footer: CustomFooter(
                         loadStyle: LoadStyle.ShowWhenLoading,
                         builder: (BuildContext context, LoadStatus? mode) {
-                          Widget body;
+                          const double height = 55;
+                          late final Widget body;
+
                           if (mode == LoadStatus.loading) {
                             body = const CustomCircularProgressIndicator();
                           } else if (mode == LoadStatus.failed) {
@@ -140,8 +145,9 @@ class _SearchScreenState extends State<SearchScreen> {
                           } else {
                             body = const SizedBox.shrink();
                           }
+
                           return SizedBox(
-                            height: 55,
+                            height: height,
                             child: Center(child: body),
                           );
                         },
@@ -162,21 +168,21 @@ class _SearchScreenState extends State<SearchScreen> {
                                           prefState.showComplexStoryTile,
                                       showMetadata: prefState.showMetadata,
                                       story: e,
-                                      onTap: () => goToStoryScreen(
-                                        args: StoryScreenArgs(story: e),
+                                      onTap: () => goToItemScreen(
+                                        args: ItemScreenArgs(item: e),
                                       ),
                                     ),
                                   ),
                                   if (!prefState.showComplexStoryTile)
                                     const Divider(
-                                      height: 0,
+                                      height: Dimens.zero,
                                     ),
                                 ],
                               )
                               .expand((List<Widget> e) => e)
                               .toList(),
                           const SizedBox(
-                            height: 40,
+                            height: Dimens.pt40,
                           ),
                         ],
                       ),

lib/screens/submit/submit_screen.dart

@@ -3,6 +3,7 @@ import 'package:flutter/services.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
 import 'package:hacki/cubits/cubits.dart';
 import 'package:hacki/extensions/extensions.dart';
+import 'package:hacki/styles/styles.dart';
 
 class SubmitScreen extends StatefulWidget {
   const SubmitScreen({super.key});
@@ -58,7 +59,7 @@ class _SubmitScreenState extends State<SubmitScreen> {
         return Scaffold(
           appBar: AppBar(
             backgroundColor: Theme.of(context).canvasColor,
-            elevation: 0,
+            elevation: Dimens.zero,
             leading: IconButton(
               icon: const Icon(Icons.close),
               onPressed: () {
@@ -78,7 +79,7 @@ class _SubmitScreenState extends State<SubmitScreen> {
                           child: const Text(
                             'Yes',
                             style: TextStyle(
-                              color: Colors.red,
+                              color: Palette.red,
                             ),
                           ),
                         ),
@@ -99,14 +100,14 @@ class _SubmitScreenState extends State<SubmitScreen> {
               if (state.status == SubmitStatus.submitting)
                 const Padding(
                   padding: EdgeInsets.symmetric(
-                    vertical: 18,
-                    horizontal: 16,
+                    vertical: Dimens.pt18,
+                    horizontal: Dimens.pt16,
                   ),
                   child: SizedBox(
-                    height: 20,
-                    width: 20,
+                    height: Dimens.pt20,
+                    width: Dimens.pt20,
                     child: CircularProgressIndicator(
-                      color: Colors.orange,
+                      color: Palette.orange,
                       strokeWidth: 2,
                     ),
                   ),
@@ -115,7 +116,7 @@ class _SubmitScreenState extends State<SubmitScreen> {
                 IconButton(
                   icon: const Icon(
                     Icons.send,
-                    color: Colors.orange,
+                    color: Palette.orange,
                   ),
                   onPressed: context.read<SubmitCubit>().onSubmitTapped,
                 )
@@ -123,7 +124,7 @@ class _SubmitScreenState extends State<SubmitScreen> {
                 IconButton(
                   icon: const Icon(
                     Icons.send,
-                    color: Colors.grey,
+                    color: Palette.grey,
                   ),
                   onPressed: () {},
                 ),
@@ -132,50 +133,58 @@ class _SubmitScreenState extends State<SubmitScreen> {
           body: Column(
             children: <Widget>[
               Padding(
-                padding: const EdgeInsets.symmetric(horizontal: 12),
+                padding: const EdgeInsets.symmetric(
+                  horizontal: Dimens.pt12,
+                ),
                 child: TextField(
                   controller: titleEditingController,
-                  cursorColor: Colors.orange,
+                  cursorColor: Palette.orange,
                   autocorrect: false,
                   maxLength: 80,
                   decoration: const InputDecoration(
                     hintText: 'Title',
                     focusedBorder: UnderlineInputBorder(
-                      borderSide: BorderSide(color: Colors.orange),
+                      borderSide: BorderSide(color: Palette.orange),
                     ),
                   ),
                   onChanged: context.read<SubmitCubit>().onTitleChanged,
                 ),
               ),
               Padding(
-                padding: const EdgeInsets.symmetric(horizontal: 12),
+                padding: const EdgeInsets.symmetric(
+                  horizontal: Dimens.pt12,
+                ),
                 child: TextField(
                   enabled: textEditingController.text.isEmpty,
                   controller: urlEditingController,
-                  cursorColor: Colors.orange,
+                  cursorColor: Palette.orange,
                   autocorrect: false,
                   decoration: const InputDecoration(
                     hintText: 'Url',
                     focusedBorder: UnderlineInputBorder(
-                      borderSide: BorderSide(color: Colors.orange),
+                      borderSide: BorderSide(color: Palette.orange),
                     ),
                   ),
                   onChanged: context.read<SubmitCubit>().onUrlChanged,
                 ),
               ),
               const Padding(
-                padding: EdgeInsets.symmetric(vertical: 12),
+                padding: EdgeInsets.symmetric(
+                  vertical: Dimens.pt12,
+                ),
                 child: Center(
                   child: Text('or'),
                 ),
               ),
               Expanded(
                 child: Padding(
-                  padding: const EdgeInsets.symmetric(horizontal: 12),
+                  padding: const EdgeInsets.symmetric(
+                    horizontal: Dimens.pt12,
+                  ),
                   child: TextField(
                     enabled: urlEditingController.text.isEmpty,
                     controller: textEditingController,
-                    cursorColor: Colors.orange,
+                    cursorColor: Palette.orange,
                     maxLines: 200,
                     decoration: const InputDecoration(
                       hintText: 'Text',

lib/screens/web_view/web_view_screen.dart

@@ -1,6 +1,7 @@
 import 'package:flutter/material.dart';
 import 'package:hacki/config/locator.dart';
 import 'package:hacki/repositories/repositories.dart';
+import 'package:hacki/styles/styles.dart';
 import 'package:webview_flutter/webview_flutter.dart';
 
 class WebViewScreen extends StatefulWidget {
@@ -24,7 +25,7 @@ class _WebViewScreenState extends State<WebViewScreen> {
         title: Text(
           humanize(widget.url),
           style: const TextStyle(
-            fontSize: 12,
+            fontSize: TextDimens.pt12,
           ),
           overflow: TextOverflow.ellipsis,
           textAlign: TextAlign.center,
@@ -33,7 +34,7 @@ class _WebViewScreenState extends State<WebViewScreen> {
       ),
       body: WebView(
         onWebViewCreated: (WebViewController controller) async {
-          final String? html = await locator.get<CacheRepository>().getHtml(
+          final String? html = await locator.get<OfflineRepository>().getHtml(
                 url: widget.url,
               );
 

lib/screens/widgets/comment_tile.dart

@@ -7,6 +7,8 @@ import 'package:hacki/blocs/blocs.dart';
 import 'package:hacki/cubits/cubits.dart';
 import 'package:hacki/extensions/extensions.dart';
 import 'package:hacki/models/models.dart';
+import 'package:hacki/services/services.dart';
+import 'package:hacki/styles/styles.dart';
 import 'package:hacki/utils/utils.dart';
 
 class CommentTile extends StatelessWidget {
@@ -18,7 +20,7 @@ class CommentTile extends StatelessWidget {
     this.onReplyTapped,
     this.onMoreTapped,
     this.onEditTapped,
-    this.onTimeMachineActivated,
+    this.onRightMoreTapped,
     this.opUsername,
     this.actionable = true,
     this.level = 0,
@@ -32,7 +34,7 @@ class CommentTile extends StatelessWidget {
   final Function(Comment)? onReplyTapped;
   final Function(Comment)? onMoreTapped;
   final Function(Comment)? onEditTapped;
-  final Function(Comment)? onTimeMachineActivated;
+  final Function(Comment)? onRightMoreTapped;
   final Function(String) onStoryLinkTapped;
 
   @override
@@ -42,6 +44,7 @@ class CommentTile extends StatelessWidget {
       lazy: false,
       create: (_) => CollapseCubit(
         commentId: comment.id,
+        collapseCache: context.tryRead<CollapseCache>() ?? CollapseCache(),
       )..init(),
       child: BlocBuilder<CollapseCubit, CollapseState>(
         builder: (BuildContext context, CollapseState state) {
@@ -67,8 +70,8 @@ class CommentTile extends StatelessWidget {
                                     SlidableAction(
                                       onPressed: (_) =>
                                           onReplyTapped?.call(comment),
-                                      backgroundColor: Colors.orange,
-                                      foregroundColor: Colors.white,
+                                      backgroundColor: Palette.orange,
+                                      foregroundColor: Palette.white,
                                       icon: Icons.message,
                                     ),
                                     if (context
@@ -80,29 +83,29 @@ class CommentTile extends StatelessWidget {
                                       SlidableAction(
                                         onPressed: (_) =>
                                             onEditTapped?.call(comment),
-                                        backgroundColor: Colors.orange,
-                                        foregroundColor: Colors.white,
+                                        backgroundColor: Palette.orange,
+                                        foregroundColor: Palette.white,
                                         icon: Icons.edit,
                                       ),
                                     SlidableAction(
                                       onPressed: (_) =>
                                           onMoreTapped?.call(comment),
-                                      backgroundColor: Colors.orange,
-                                      foregroundColor: Colors.white,
+                                      backgroundColor: Palette.orange,
+                                      foregroundColor: Palette.white,
                                       icon: Icons.more_horiz,
                                     ),
                                   ],
                                 )
                               : null,
-                          endActionPane: actionable && level != 0
+                          endActionPane: actionable
                               ? ActionPane(
                                   motion: const StretchMotion(),
                                   children: <Widget>[
                                     SlidableAction(
                                       onPressed: (_) =>
-                                          onTimeMachineActivated?.call(comment),
-                                      backgroundColor: Colors.orange,
-                                      foregroundColor: Colors.white,
+                                          onRightMoreTapped?.call(comment),
+                                      backgroundColor: Palette.orange,
+                                      foregroundColor: Palette.white,
                                       icon: Icons.av_timer,
                                     ),
                                   ],
@@ -111,7 +114,7 @@ class CommentTile extends StatelessWidget {
                           child: InkWell(
                             onTap: () {
                               if (actionable) {
-                                HapticFeedback.lightImpact();
+                                HapticFeedback.selectionClick();
                                 context.read<CollapseCubit>().collapse();
                               }
                             },
@@ -120,9 +123,9 @@ class CommentTile extends StatelessWidget {
                               children: <Widget>[
                                 Padding(
                                   padding: const EdgeInsets.only(
-                                    left: 6,
-                                    right: 6,
-                                    top: 6,
+                                    left: Dimens.pt6,
+                                    right: Dimens.pt6,
+                                    top: Dimens.pt6,
                                   ),
                                   child: Row(
                                     children: <Widget>[
@@ -145,7 +148,7 @@ class CommentTile extends StatelessWidget {
                                       Text(
                                         comment.postedDate,
                                         style: const TextStyle(
-                                          color: Colors.grey,
+                                          color: Palette.grey,
                                         ),
                                       ),
                                     ],
@@ -154,13 +157,14 @@ class CommentTile extends StatelessWidget {
                                 if (actionable && state.collapsed)
                                   Center(
                                     child: Padding(
-                                      padding:
-                                          const EdgeInsets.only(bottom: 12),
+                                      padding: const EdgeInsets.only(
+                                        bottom: Dimens.pt12,
+                                      ),
                                       child: Text(
                                         'collapsed '
                                         '(${state.collapsedCount + 1})',
                                         style: const TextStyle(
-                                          color: Colors.orangeAccent,
+                                          color: Palette.orangeAccent,
                                         ),
                                       ),
                                     ),
@@ -168,11 +172,13 @@ class CommentTile extends StatelessWidget {
                                 else if (comment.deleted)
                                   const Center(
                                     child: Padding(
-                                      padding: EdgeInsets.only(bottom: 12),
+                                      padding: EdgeInsets.only(
+                                        bottom: Dimens.pt12,
+                                      ),
                                       child: Text(
                                         'deleted',
                                         style: TextStyle(
-                                          color: Colors.grey,
+                                          color: Palette.grey,
                                         ),
                                       ),
                                     ),
@@ -180,11 +186,13 @@ class CommentTile extends StatelessWidget {
                                 else if (comment.dead)
                                   const Center(
                                     child: Padding(
-                                      padding: EdgeInsets.only(bottom: 12),
+                                      padding: EdgeInsets.only(
+                                        bottom: Dimens.pt12,
+                                      ),
                                       child: Text(
                                         'dead',
                                         style: TextStyle(
-                                          color: Colors.grey,
+                                          color: Palette.grey,
                                         ),
                                       ),
                                     ),
@@ -193,11 +201,13 @@ class CommentTile extends StatelessWidget {
                                     .contains(comment.by))
                                   const Center(
                                     child: Padding(
-                                      padding: EdgeInsets.only(bottom: 12),
+                                      padding: EdgeInsets.only(
+                                        bottom: Dimens.pt12,
+                                      ),
                                       child: Text(
                                         'blocked',
                                         style: TextStyle(
-                                          color: Colors.grey,
+                                          color: Palette.grey,
                                         ),
                                       ),
                                     ),
@@ -205,10 +215,10 @@ class CommentTile extends StatelessWidget {
                                 else
                                   Padding(
                                     padding: const EdgeInsets.only(
-                                      left: 8,
-                                      right: 8,
-                                      top: 6,
-                                      bottom: 12,
+                                      left: Dimens.pt8,
+                                      right: Dimens.pt8,
+                                      top: Dimens.pt6,
+                                      bottom: Dimens.pt12,
                                     ),
                                     child: comment is BuildableComment
                                         ? SelectableText.rich(
@@ -219,15 +229,15 @@ class CommentTile extends StatelessWidget {
                                               style: TextStyle(
                                                 fontSize: MediaQuery.of(context)
                                                         .textScaleFactor *
-                                                    15,
+                                                    TextDimens.pt15,
                                               ),
                                               linkStyle: TextStyle(
                                                 fontSize: MediaQuery.of(context)
                                                         .textScaleFactor *
-                                                    15,
+                                                    TextDimens.pt15,
                                                 decoration:
                                                     TextDecoration.underline,
-                                                color: Colors.orange,
+                                                color: Palette.orange,
                                               ),
                                               onOpen: (LinkableElement link) {
                                                 if (link.url.contains(
@@ -247,13 +257,13 @@ class CommentTile extends StatelessWidget {
                                             style: TextStyle(
                                               fontSize: MediaQuery.of(context)
                                                       .textScaleFactor *
-                                                  15,
+                                                  TextDimens.pt15,
                                             ),
                                             linkStyle: TextStyle(
                                               fontSize: MediaQuery.of(context)
                                                       .textScaleFactor *
-                                                  15,
-                                              color: Colors.orange,
+                                                  TextDimens.pt15,
+                                              color: Palette.orange,
                                             ),
                                             onOpen: (LinkableElement link) {
                                               if (link.url.contains(
@@ -268,7 +278,7 @@ class CommentTile extends StatelessWidget {
                                           ),
                                   ),
                                 const Divider(
-                                  height: 0,
+                                  height: Dimens.zero,
                                 ),
                               ],
                             ),
@@ -285,14 +295,14 @@ class CommentTile extends StatelessWidget {
 
                   final Color commentColor = prefState.showEyeCandy
                       ? color.withOpacity(commentBackgroundColorOpacity)
-                      : Colors.transparent;
+                      : Palette.transparent;
                   final bool isMyComment = myUsername == comment.by;
 
                   Widget? wrapper = child;
 
                   if (isMyComment && level == 0) {
                     return Container(
-                      color: Colors.orange.withOpacity(0.2),
+                      color: Palette.orange.withOpacity(0.2),
                       child: wrapper,
                     );
                   }
@@ -301,7 +311,9 @@ class CommentTile extends StatelessWidget {
                     final Color wrapperBorderColor = _getColor(i);
                     final bool shouldHighlight = isMyComment && i == level;
                     wrapper = Container(
-                      margin: const EdgeInsets.only(left: 12),
+                      margin: const EdgeInsets.only(
+                        left: Dimens.pt12,
+                      ),
                       decoration: BoxDecoration(
                         border: i != 0
                             ? Border(
@@ -311,7 +323,7 @@ class CommentTile extends StatelessWidget {
                               )
                             : null,
                         color: shouldHighlight
-                            ? Colors.orange.withOpacity(0.2)
+                            ? Palette.orange.withOpacity(0.2)
                             : commentColor,
                       ),
                       child: wrapper,
@@ -328,7 +340,12 @@ class CommentTile extends StatelessWidget {
     );
   }
 
+  static final Map<int, Color> _colors = <int, Color>{};
+
   Color _getColor(int level) {
+    final int initialLevel = level;
+    if (_colors[initialLevel] != null) return _colors[initialLevel]!;
+
     while (level >= 10) {
       level = level - 10;
     }
@@ -349,6 +366,7 @@ class CommentTile extends StatelessWidget {
       1,
     );
 
+    _colors[initialLevel] = color;
     return color;
   }
 }

lib/screens/widgets/countdown_reminder.dart

@@ -7,6 +7,7 @@ import 'package:hacki/extensions/extensions.dart';
 import 'package:hacki/models/story.dart';
 import 'package:hacki/repositories/repositories.dart';
 import 'package:hacki/screens/screens.dart';
+import 'package:hacki/styles/styles.dart';
 
 class CountdownReminder extends StatefulWidget {
   const CountdownReminder({super.key});
@@ -95,9 +96,13 @@ class _CountDownReminderState extends State<CountdownReminder>
             animation: animationController,
             child: FadeIn(
               child: Material(
-                color: Colors.deepOrange,
+                color: Palette.deepOrange,
                 clipBehavior: Clip.hardEdge,
-                borderRadius: const BorderRadius.all(Radius.circular(4)),
+                borderRadius: const BorderRadius.all(
+                  Radius.circular(
+                    Dimens.pt4,
+                  ),
+                ),
                 child: InkWell(
                   onTap: () {
                     if (state.storyId != null) {
@@ -109,9 +114,8 @@ class _CountDownReminderState extends State<CountdownReminder>
                           showSnackBar(content: 'Something went wrong...');
                           return;
                         }
-                        final StoryScreenArgs args =
-                            StoryScreenArgs(story: story);
-                        goToStoryScreen(args: args);
+                        final ItemScreenArgs args = ItemScreenArgs(item: story);
+                        goToItemScreen(args: args);
 
                         context.read<ReminderCubit>().removeLastReadStoryId();
                       });
@@ -123,24 +127,24 @@ class _CountDownReminderState extends State<CountdownReminder>
                     children: <Widget>[
                       Padding(
                         padding: const EdgeInsets.only(
-                          left: 12,
-                          top: 10,
-                          right: 10,
+                          left: Dimens.pt12,
+                          top: Dimens.pt10,
+                          right: Dimens.pt10,
                         ),
                         child: Row(
                           children: const <Widget>[
                             Text(
                               'Pick up where you left off',
                               style: TextStyle(
-                                color: Colors.white,
-                                fontSize: 12,
+                                color: Palette.white,
+                                fontSize: TextDimens.pt12,
                               ),
                             ),
                             Spacer(),
                             Icon(
                               Icons.arrow_forward_ios,
-                              size: 12,
-                              color: Colors.white,
+                              size: TextDimens.pt12,
+                              color: Palette.white,
                             ),
                           ],
                         ),

lib/screens/widgets/custom_chip.dart

@@ -1,4 +1,5 @@
 import 'package:flutter/material.dart';
+import 'package:hacki/styles/styles.dart';
 
 class CustomChip extends StatelessWidget {
   CustomChip({
@@ -15,16 +16,16 @@ class CustomChip extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     return FilterChip(
-      shadowColor: Colors.transparent,
-      selectedShadowColor: Colors.transparent,
-      backgroundColor: Colors.transparent,
+      shadowColor: Palette.transparent,
+      selectedShadowColor: Palette.transparent,
+      backgroundColor: Palette.transparent,
       shape: const StadiumBorder(
-        side: BorderSide(color: Colors.orange),
+        side: BorderSide(color: Palette.orange),
       ),
       label: Text(label),
       selected: selected,
       onSelected: onSelected,
-      selectedColor: Colors.orange,
+      selectedColor: Palette.orange,
     );
   }
 }

lib/screens/widgets/custom_circular_progress_indicator.dart

@@ -1,4 +1,5 @@
 import 'package:flutter/material.dart';
+import 'package:hacki/styles/styles.dart';
 
 /// Circular progress indicator with color.
 /// Changing `colorScheme`'s `primary` color doesn't work because it changes
@@ -17,7 +18,7 @@ class CustomCircularProgressIndicator extends StatelessWidget {
   Widget build(BuildContext context) {
     return CircularProgressIndicator(
       strokeWidth: strokeWidth,
-      valueColor: const AlwaysStoppedAnimation<Color>(Colors.orange),
+      valueColor: const AlwaysStoppedAnimation<Color>(Palette.orange),
     );
   }
 }

lib/screens/widgets/items_list_view.dart

@@ -7,6 +7,7 @@ import 'package:flutter_slidable/flutter_slidable.dart';
 import 'package:hacki/blocs/blocs.dart';
 import 'package:hacki/models/models.dart';
 import 'package:hacki/screens/widgets/widgets.dart';
+import 'package:hacki/styles/styles.dart';
 import 'package:hacki/utils/utils.dart';
 import 'package:pull_to_refresh/pull_to_refresh.dart';
 
@@ -18,6 +19,8 @@ class ItemsListView<T extends Item> extends StatelessWidget {
     required this.items,
     required this.onTap,
     required this.refreshController,
+    this.useCommentTile = false,
+    this.showCommentBy = false,
     this.enablePullDown = true,
     this.pinnable = false,
     this.markReadStories = false,
@@ -32,6 +35,8 @@ class ItemsListView<T extends Item> extends StatelessWidget {
           'onPinned cannot be null when pinnable is true',
         );
 
+  final bool useCommentTile;
+  final bool showCommentBy;
   final bool showWebPreview;
   final bool showMetadata;
   final bool enablePullDown;
@@ -76,8 +81,8 @@ class ItemsListView<T extends Item> extends StatelessWidget {
                                 HapticFeedback.lightImpact();
                                 onPinned?.call(e);
                               },
-                              backgroundColor: Colors.orange,
-                              foregroundColor: Colors.white,
+                              backgroundColor: Palette.orange,
+                              foregroundColor: Palette.white,
                               icon: showWebPreview
                                   ? Icons.push_pin_outlined
                                   : null,
@@ -93,20 +98,38 @@ class ItemsListView<T extends Item> extends StatelessWidget {
                     showWebPreview: showWebPreview,
                     showMetadata: showMetadata,
                     hasRead: markReadStories && hasRead,
-                    simpleTileFontSize: useConsistentFontSize ? 14 : 16,
+                    simpleTileFontSize: useConsistentFontSize
+                        ? TextDimens.pt14
+                        : TextDimens.pt16,
                   ),
                 ),
               ),
               if (!showWebPreview)
                 const Divider(
-                  height: 0,
+                  height: Dimens.zero,
                 ),
             ];
           } else if (e is Comment) {
+            if (useCommentTile) {
+              return <Widget>[
+                if (showWebPreview)
+                  const Divider(
+                    height: Dimens.zero,
+                  ),
+                _CommentTile(
+                  comment: e,
+                  onTap: () => onTap(e),
+                  fontSize: showWebPreview ? TextDimens.pt14 : TextDimens.pt16,
+                ),
+                const Divider(
+                  height: Dimens.zero,
+                ),
+              ];
+            }
             return <Widget>[
               FadeIn(
                 child: Padding(
-                  padding: const EdgeInsets.only(left: 6),
+                  padding: const EdgeInsets.only(left: Dimens.pt6),
                   child: InkWell(
                     onTap: () => onTap(e),
                     child: Padding(
@@ -117,10 +140,12 @@ class ItemsListView<T extends Item> extends StatelessWidget {
                           if (e.deleted)
                             const Center(
                               child: Padding(
-                                padding: EdgeInsets.only(top: 6),
+                                padding: EdgeInsets.only(
+                                  top: Dimens.pt6,
+                                ),
                                 child: Text(
                                   'deleted',
-                                  style: TextStyle(color: Colors.grey),
+                                  style: TextStyle(color: Palette.grey),
                                 ),
                               ),
                             ),
@@ -131,14 +156,15 @@ class ItemsListView<T extends Item> extends StatelessWidget {
                               Expanded(
                                 child: Padding(
                                   padding: const EdgeInsets.symmetric(
-                                    vertical: 8,
-                                    horizontal: 6,
+                                    vertical: Dimens.pt8,
+                                    horizontal: Dimens.pt6,
                                   ),
                                   child: Linkify(
-                                    text: e.text,
+                                    text:
+                                        '''${showCommentBy ? '${e.by}: ' : ''}${e.text}''',
                                     maxLines: 4,
                                     linkStyle: const TextStyle(
-                                      color: Colors.orange,
+                                      color: Palette.orange,
                                     ),
                                     onOpen: (LinkableElement link) =>
                                         LinkUtil.launch(link.url),
@@ -150,18 +176,18 @@ class ItemsListView<T extends Item> extends StatelessWidget {
                                   Text(
                                     e.postedDate,
                                     style: const TextStyle(
-                                      color: Colors.grey,
+                                      color: Palette.grey,
                                     ),
                                   ),
                                   const SizedBox(
-                                    width: 12,
+                                    width: Dimens.pt12,
                                   ),
                                 ],
                               ),
                             ],
                           ),
                           const Divider(
-                            height: 0,
+                            height: Dimens.zero,
                           ),
                         ],
                       ),
@@ -170,7 +196,7 @@ class ItemsListView<T extends Item> extends StatelessWidget {
                 ),
               ),
               const Divider(
-                height: 0,
+                height: Dimens.zero,
               ),
             ];
           }
@@ -178,7 +204,7 @@ class ItemsListView<T extends Item> extends StatelessWidget {
           return <Widget>[Container()];
         }).expand((List<Widget> element) => element),
         const SizedBox(
-          height: 40,
+          height: Dimens.pt40,
         ),
       ],
     );
@@ -187,12 +213,14 @@ class ItemsListView<T extends Item> extends StatelessWidget {
       enablePullUp: true,
       enablePullDown: enablePullDown,
       header: const WaterDropMaterialHeader(
-        backgroundColor: Colors.orange,
+        backgroundColor: Palette.orange,
       ),
       footer: CustomFooter(
         loadStyle: LoadStyle.ShowWhenLoading,
         builder: (BuildContext context, LoadStatus? mode) {
-          Widget body;
+          const double height = 55;
+          late final Widget body;
+
           if (mode == LoadStatus.loading) {
             body = const CustomCircularProgressIndicator();
           } else if (mode == LoadStatus.failed) {
@@ -203,7 +231,7 @@ class ItemsListView<T extends Item> extends StatelessWidget {
             body = const SizedBox.shrink();
           }
           return SizedBox(
-            height: 55,
+            height: height,
             child: Center(child: body),
           );
         },
@@ -215,3 +243,67 @@ class ItemsListView<T extends Item> extends StatelessWidget {
     );
   }
 }
+
+class _CommentTile extends StatelessWidget {
+  const _CommentTile({
+    Key? key,
+    required this.comment,
+    required this.onTap,
+    this.fontSize = 16,
+  }) : super(key: key);
+
+  final Comment comment;
+  final VoidCallback onTap;
+  final double fontSize;
+
+  @override
+  Widget build(BuildContext context) {
+    return InkWell(
+      onTap: onTap,
+      child: Padding(
+        padding: const EdgeInsets.only(
+          left: Dimens.pt12,
+        ),
+        child: Column(
+          crossAxisAlignment: CrossAxisAlignment.start,
+          children: <Widget>[
+            const SizedBox(
+              height: Dimens.pt8,
+            ),
+            Row(
+              children: <Widget>[
+                Expanded(
+                  child: Text(
+                    comment.text,
+                    style: TextStyle(
+                      fontSize: fontSize,
+                    ),
+                    overflow: TextOverflow.ellipsis,
+                    maxLines: 2,
+                  ),
+                ),
+              ],
+            ),
+            Row(
+              children: <Widget>[
+                Expanded(
+                  child: Text(
+                    comment.metadata,
+                    style: TextStyle(
+                      color: Palette.grey,
+                      fontSize: fontSize - 2,
+                    ),
+                    maxLines: 1,
+                  ),
+                ),
+              ],
+            ),
+            const SizedBox(
+              height: Dimens.pt8,
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+}