전역 구조 리팩터링 및 테스트 확장

lib/widgets/app_shell.dart

@@ -1,8 +1,10 @@
 import 'package:flutter/material.dart';
 import 'package:go_router/go_router.dart';
-import 'package:lucide_icons_flutter/lucide_icons.dart';
+import 'package:lucide_icons_flutter/lucide_icons.dart' as lucide;
 
 import '../core/constants/app_sections.dart';
+import '../core/theme/theme_controller.dart';
+import '../core/permissions/permission_manager.dart';
 
 class AppShell extends StatelessWidget {
   const AppShell({
@@ -19,6 +21,13 @@ class AppShell extends StatelessWidget {
     return LayoutBuilder(
       builder: (context, constraints) {
         final isWide = constraints.maxWidth >= 960;
+        final manager = PermissionScope.of(context);
+        final filteredPages = <AppPageDescriptor>[
+          for (final section in appSections)
+            for (final page in section.pages)
+              if (manager.can(page.path, PermissionAction.view)) page,
+        ];
+        final pages = filteredPages.isEmpty ? allAppPages : filteredPages;
         if (isWide) {
           return Scaffold(
             appBar: AppBar(
@@ -26,14 +35,14 @@ class AppShell extends StatelessWidget {
               actions: [
                 IconButton(
                   tooltip: '로그아웃',
-                  icon: const Icon(LucideIcons.logOut),
+                  icon: const Icon(lucide.LucideIcons.logOut),
                   onPressed: () => context.go(loginRoutePath),
                 ),
               ],
             ),
             body: Row(
               children: [
-                _NavigationRail(currentLocation: currentLocation),
+                _NavigationRail(currentLocation: currentLocation, pages: pages),
                 const VerticalDivider(width: 1),
                 Expanded(child: child),
               ],
@@ -47,7 +56,7 @@ class AppShell extends StatelessWidget {
             actions: [
               IconButton(
                 tooltip: '로그아웃',
-                icon: const Icon(LucideIcons.logOut),
+                icon: const Icon(lucide.LucideIcons.logOut),
                 onPressed: () => context.go(loginRoutePath),
               ),
             ],
@@ -60,6 +69,7 @@ class AppShell extends StatelessWidget {
                   Navigator.of(context).pop();
                   context.go(path);
                 },
+                pages: pages,
               ),
             ),
           ),
@@ -71,16 +81,18 @@ class AppShell extends StatelessWidget {
 }
 
 class _NavigationRail extends StatelessWidget {
-  const _NavigationRail({required this.currentLocation});
+  const _NavigationRail({required this.currentLocation, required this.pages});
 
   final String currentLocation;
+  final List<AppPageDescriptor> pages;
 
   @override
   Widget build(BuildContext context) {
-    final pages = allAppPages;
     final selectedIndex = _selectedIndex(currentLocation, pages);
     final theme = Theme.of(context);
     final colorScheme = theme.colorScheme;
+    final themeController = ThemeControllerScope.of(context);
+    final currentThemeMode = themeController.mode;
 
     return Container(
       width: 104,
@@ -151,6 +163,13 @@ class _NavigationRail extends StatelessWidget {
               },
             ),
           ),
+          Padding(
+            padding: const EdgeInsets.fromLTRB(12, 8, 12, 16),
+            child: _ThemeMenuButton(
+              mode: currentThemeMode,
+              onChanged: themeController.update,
+            ),
+          ),
         ],
       ),
     );
@@ -158,19 +177,37 @@ class _NavigationRail extends StatelessWidget {
 }
 
 class _NavigationList extends StatelessWidget {
-  const _NavigationList({required this.currentLocation, required this.onTap});
+  const _NavigationList({
+    required this.currentLocation,
+    required this.onTap,
+    required this.pages,
+  });
 
   final String currentLocation;
   final ValueChanged<String> onTap;
+  final List<AppPageDescriptor> pages;
 
   @override
   Widget build(BuildContext context) {
-    final pages = allAppPages;
     final selectedIndex = _selectedIndex(currentLocation, pages);
+    final themeController = ThemeControllerScope.of(context);
 
     return ListView.builder(
-      itemCount: pages.length,
+      itemCount: pages.length + 1,
       itemBuilder: (context, index) {
+        if (index == pages.length) {
+          return Padding(
+            padding: const EdgeInsets.fromLTRB(16, 12, 16, 16),
+            child: _ThemeMenuButton(
+              mode: themeController.mode,
+              onChanged: (mode) {
+                themeController.update(mode);
+                Navigator.of(context).maybePop();
+              },
+            ),
+          );
+        }
+
         final page = pages[index];
         final selected = index == selectedIndex;
         return ListTile(
@@ -190,6 +227,77 @@ class _NavigationList extends StatelessWidget {
   }
 }
 
+class _ThemeMenuButton extends StatelessWidget {
+  const _ThemeMenuButton({required this.mode, required this.onChanged});
+
+  final ThemeMode mode;
+  final ValueChanged<ThemeMode> onChanged;
+
+  @override
+  Widget build(BuildContext context) {
+    final theme = Theme.of(context);
+    final colorScheme = theme.colorScheme;
+    final label = _label(mode);
+    final icon = _icon(mode);
+
+    return PopupMenuButton<ThemeMode>(
+      tooltip: '테마 변경',
+      onSelected: onChanged,
+      itemBuilder: (context) => ThemeMode.values
+          .map(
+            (value) => PopupMenuItem<ThemeMode>(
+              value: value,
+              child: Row(
+                children: [
+                  Icon(_icon(value), size: 18),
+                  const SizedBox(width: 8),
+                  Text(_label(value)),
+                ],
+              ),
+            ),
+          )
+          .toList(),
+      child: Container(
+        padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 10),
+        decoration: BoxDecoration(
+          borderRadius: BorderRadius.circular(12),
+          border: Border.all(color: colorScheme.outlineVariant),
+        ),
+        child: Row(
+          mainAxisAlignment: MainAxisAlignment.center,
+          children: [
+            Icon(icon, size: 18),
+            const SizedBox(width: 8),
+            Text('테마 · $label', style: theme.textTheme.labelSmall),
+          ],
+        ),
+      ),
+    );
+  }
+
+  static String _label(ThemeMode mode) {
+    switch (mode) {
+      case ThemeMode.system:
+        return '시스템';
+      case ThemeMode.light:
+        return '라이트';
+      case ThemeMode.dark:
+        return '다크';
+    }
+  }
+
+  static IconData _icon(ThemeMode mode) {
+    switch (mode) {
+      case ThemeMode.system:
+        return lucide.LucideIcons.monitorCog;
+      case ThemeMode.light:
+        return lucide.LucideIcons.sun;
+      case ThemeMode.dark:
+        return lucide.LucideIcons.moon;
+    }
+  }
+}
+
 int _selectedIndex(String location, List<AppPageDescriptor> pages) {
   final normalized = location.toLowerCase();
   final exact = pages.indexWhere(