Refactor code for improved readability and consistency

- Cleaned up imports and organized them in `image_color_extractor.dart`, `update_service.dart`, `text_style_helper.dart`, `next_abc_contest_widget.dart`, and `custom_sliver_app_bar.dart`.
- Enhanced logging messages for better clarity in `image_color_extractor.dart`.
- Streamlined method parameters and formatting in `update_service.dart` for better readability.
- Removed unnecessary whitespace and improved formatting in `next_abc_contest_widget.dart` for consistency.
- Updated test cases in `build_config_test.dart` and `fdroid_integration_test.dart` for better clarity and consistency in assertions.

Author: yuubinnkyoku

lib/config/build_config.dart

@@ -6,22 +6,20 @@ class BuildConfig {
     'FDROID_BUILD',
     defaultValue: false,
   );
-  
+
   /// Flag to control self-update functionality
   /// Disabled automatically for F-Droid builds
-  static const bool enableSelfUpdate = bool.fromEnvironment(
-    'ENABLE_SELF_UPDATE',
-    defaultValue: true,
-  ) && !isFdroidBuild;
-  
+  static const bool enableSelfUpdate =
+      bool.fromEnvironment('ENABLE_SELF_UPDATE', defaultValue: true) &&
+      !isFdroidBuild;
+
   /// Flag to control online font fetching
   /// Disabled for F-Droid builds to ensure offline-only operation
-  static const bool enableOnlineFonts = bool.fromEnvironment(
-    'ENABLE_ONLINE_FONTS', 
-    defaultValue: true,
-  ) && !isFdroidBuild;
-  
+  static const bool enableOnlineFonts =
+      bool.fromEnvironment('ENABLE_ONLINE_FONTS', defaultValue: true) &&
+      !isFdroidBuild;
+
   /// Repository info for self-updates (only used when enableSelfUpdate is true)
   static const String defaultOwner = 'yuubinnkyoku';
   static const String defaultRepo = 'Shojin_App';
-}
+}

lib/generated/manual_licenses.dart

@@ -17,8 +17,8 @@ const _hackgenFontFamily = Package(
   authors: ['Yuko Otawara'],
   isMarkdown: false,
   isSdk: false,
-    dependencies: [],
-    devDependencies: [],
+  dependencies: [],
+  devDependencies: [],
   homepage: 'https://github.com/yuru7/HackGen',
   version:
       null, // Font version not strictly required; omit to avoid stale info.

lib/main.dart

@@ -27,7 +27,7 @@ void main() async {
 
   // F-Droid ビルド安全性アサート: 自己アップデートが無効であること
   assert(() {
-  if (BuildConfig.isFdroidBuild && BuildConfig.enableSelfUpdate) {
+    if (BuildConfig.isFdroidBuild && BuildConfig.enableSelfUpdate) {
       throw StateError(
         'FDROID_BUILD=true なのに enableSelfUpdate が true です。ビルドフラグ/defines を再確認してください。',
       );
@@ -239,8 +239,7 @@ class MyApp extends StatelessWidget {
               backgroundColor: Colors.transparent,
               surfaceTintColor: Colors.transparent,
               elevation: 0,
-        indicatorColor:
-          lightColorScheme.primary.withValues(alpha: 0.20),
+              indicatorColor: lightColorScheme.primary.withValues(alpha: 0.20),
               iconTheme: WidgetStateProperty.resolveWith((states) {
                 final color = states.contains(WidgetState.selected)
                     ? lightColorScheme.primary
@@ -258,8 +257,8 @@ class MyApp extends StatelessWidget {
               elevation: 2,
               margin: const EdgeInsets.all(8),
               // MaterialYou使用時のコントラスト改善
-        surfaceTintColor: themeProvider.useMaterialYou
-          ? lightColorScheme.primary.withValues(alpha: 0.08)
+              surfaceTintColor: themeProvider.useMaterialYou
+                  ? lightColorScheme.primary.withValues(alpha: 0.08)
                   : null,
             ),
             textTheme: textTheme,
@@ -277,8 +276,7 @@ class MyApp extends StatelessWidget {
               backgroundColor: Colors.transparent,
               surfaceTintColor: Colors.transparent,
               elevation: 0,
-        indicatorColor:
-          darkColorScheme.primary.withValues(alpha: 0.20),
+              indicatorColor: darkColorScheme.primary.withValues(alpha: 0.20),
               iconTheme: WidgetStateProperty.resolveWith((states) {
                 final color = states.contains(WidgetState.selected)
                     ? darkColorScheme.primary
@@ -297,8 +295,8 @@ class MyApp extends StatelessWidget {
               margin: const EdgeInsets.all(8),
               color: themeProvider.isPureBlack ? const Color(0xFF121212) : null,
               // MaterialYou使用時のコントラスト改善
-        surfaceTintColor: themeProvider.useMaterialYou
-          ? darkColorScheme.primary.withValues(alpha: 0.08)
+              surfaceTintColor: themeProvider.useMaterialYou
+                  ? darkColorScheme.primary.withValues(alpha: 0.08)
                   : null,
             ),
             scaffoldBackgroundColor: themeProvider.isPureBlack

lib/models/test_result.dart

@@ -25,14 +25,22 @@ class TestResult {
 
   String get statusLabel {
     switch (status) {
-      case JudgeStatus.pending: return 'Pending';
-      case JudgeStatus.running: return 'Running';
-      case JudgeStatus.ac: return 'AC';
-      case JudgeStatus.wa: return 'WA';
-      case JudgeStatus.re: return 'RE';
-      case JudgeStatus.tle: return 'TLE'; // TLEはWandboxのレスポンスからは直接判断難しい場合あり
-      case JudgeStatus.ce: return 'CE'; // Compile Error
-      case JudgeStatus.ie: return 'IE'; // Internal Error
+      case JudgeStatus.pending:
+        return 'Pending';
+      case JudgeStatus.running:
+        return 'Running';
+      case JudgeStatus.ac:
+        return 'AC';
+      case JudgeStatus.wa:
+        return 'WA';
+      case JudgeStatus.re:
+        return 'RE';
+      case JudgeStatus.tle:
+        return 'TLE'; // TLEはWandboxのレスポンスからは直接判断難しい場合あり
+      case JudgeStatus.ce:
+        return 'CE'; // Compile Error
+      case JudgeStatus.ie:
+        return 'IE'; // Internal Error
     }
   }
 }

lib/screens/browser_screen.dart

@@ -1,5 +1,6 @@
 // filepath: d:\GitHub_yuubinnkyoku\shojin_app\lib\screens\browser_screen.dart
 import 'dart:developer' as developer;
+
 import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
 import 'package:webview_flutter/webview_flutter.dart';
@@ -308,10 +309,7 @@ class _BrowserScreenState extends State<BrowserScreen>
                       );
                       if (mounted) {
                         scaffoldMessenger.showSnackBar(
-                          SnackBar(
-                            content:
-                                Text('サイトメタデータの取得に失敗しました: $e'),
-                          ),
+                          SnackBar(content: Text('サイトメタデータの取得に失敗しました: $e')),
                         );
                       }
                     }
@@ -493,7 +491,7 @@ class _BrowserScreenState extends State<BrowserScreen>
       // MaterialYou使用時はプライマリカラーで軽いティントを追加してコントラストを向上
       final themeProvider = Provider.of<ThemeProvider>(context, listen: false);
       if (themeProvider.useMaterialYou) {
-  backgroundColor = backgroundColor.withValues(alpha: 0.9);
+        backgroundColor = backgroundColor.withValues(alpha: 0.9);
       }
     }
 
@@ -573,7 +571,11 @@ class _BrowserScreenState extends State<BrowserScreen>
                 ),
               )
             else
-              Icon(Icons.public, size: 18, color: textColor.withValues(alpha: 0.8)),
+              Icon(
+                Icons.public,
+                size: 18,
+                color: textColor.withValues(alpha: 0.8),
+              ),
             const SizedBox(width: 8),
             Text(
               title,
@@ -687,7 +689,9 @@ class _BrowserScreenState extends State<BrowserScreen>
 
               if (_isControllerReady && _isLoadingWebView && !_loadFailed)
                 Container(
-                  color: Theme.of(context).colorScheme.surface.withValues(alpha: 0.3),
+                  color: Theme.of(
+                    context,
+                  ).colorScheme.surface.withValues(alpha: 0.3),
                   child: const Center(child: CircularProgressIndicator()),
                 ),
             ],

lib/screens/code_history_screen.dart

@@ -1,5 +1,6 @@
 import 'package:flutter/material.dart';
 import 'package:intl/intl.dart';
+
 import '../models/code_history.dart';
 import '../services/code_history_service.dart';
 
@@ -25,9 +26,7 @@ class _CodeHistoryScreenState extends State<CodeHistoryScreen> {
   @override
   Widget build(BuildContext context) {
     return Scaffold(
-      appBar: AppBar(
-        title: const Text('Code History'),
-      ),
+      appBar: AppBar(title: const Text('Code History')),
       body: FutureBuilder<List<CodeHistory>>(
         future: _historyFuture,
         builder: (context, snapshot) {
@@ -44,7 +43,9 @@ class _CodeHistoryScreenState extends State<CodeHistoryScreen> {
               itemBuilder: (context, index) {
                 final history = historyList[index];
                 return ListTile(
-                  title: Text(DateFormat.yMMMd().add_jms().format(history.timestamp)),
+                  title: Text(
+                    DateFormat.yMMMd().add_jms().format(history.timestamp),
+                  ),
                   subtitle: Text(
                     history.content,
                     maxLines: 2,
@@ -65,9 +66,7 @@ class _CodeHistoryScreenState extends State<CodeHistoryScreen> {
       context: context,
       builder: (context) => AlertDialog(
         title: Text(DateFormat.yMMMd().add_jms().format(history.timestamp)),
-        content: SingleChildScrollView(
-          child: SelectableText(history.content),
-        ),
+        content: SingleChildScrollView(child: SelectableText(history.content)),
         actions: [
           TextButton(
             onPressed: () => Navigator.of(context).pop(),
@@ -76,7 +75,9 @@ class _CodeHistoryScreenState extends State<CodeHistoryScreen> {
           TextButton(
             onPressed: () {
               Navigator.of(context).pop(); // Close the dialog
-              Navigator.of(context).pop(history.content); // Pop the screen and return the code
+              Navigator.of(
+                context,
+              ).pop(history.content); // Pop the screen and return the code
             },
             child: const Text('Restore'),
           ),