feat: implement admin product management panel with bulk categorization and premium user toggle

flutter/README.md

@@ -5,6 +5,8 @@
 - RecipesScreen är nu body-only, ingen egen Scaffold/AppBar.
 - AppShell visar grid-ikon endast på /recipes.
 - Buggfix: Produktväljaren i pantry/inventarie (ProductPickerField) — bottenark implementeras.
+- Sprint 2: Databas > Produkter har fått en inbäddad produktadminpanel med sök, okategoriserat-filter och bulk-kategorisering.
+- Sprint 2: Admin kan nu slå Premium av/på för användare direkt i Användare-fliken.
 - Kodkvalitet: Inga absoluta Windows-sökvägar.
 - Dokumentation och next_steps uppdaterade.
 # Flutter Frontend - User Guide

flutter/lib/core/api/api_paths.dart

@@ -6,12 +6,17 @@ class ProductApiPaths {
   static const list = '/products';
   static const pending = '/products/pending';
   static String setStatus(int id) => '/products/$id/status';
+  static const bulkUpdate = '/products/bulk-update';
 }
 
 class AiApiPaths {
   static const models = '/ai/models';
 }
 
+class CategoryApiPaths {
+  static const tree = '/categories/tree';
+}
+
 class RecipeApiPaths {
   static const list = '/recipes';
   static String detail(int id) => '/recipes/$id';

flutter/lib/features/admin/data/admin_repository.dart

@@ -3,6 +3,8 @@ import '../../../core/api/api_client.dart';
 import '../../../core/api/api_paths.dart';
 import '../../../core/api/guarded_api_call.dart';
 import '../../auth/data/auth_providers.dart';
+import '../domain/admin_category_node.dart';
+import '../domain/admin_product.dart';
 import '../domain/ai_model_info.dart';
 import '../domain/pending_product.dart';
 import '../domain/user_admin.dart';
@@ -115,4 +117,36 @@ class AdminRepository {
         .map((e) => AiModelInfo.fromJson(e as Map<String, dynamic>))
         .toList();
   }
+
+  Future<List<AdminProduct>> listProducts() async {
+    final data = await guardedApiCall(
+      _ref,
+      () => _apiClient.getJson(ProductApiPaths.list),
+    );
+    return (data as List<dynamic>)
+        .map((e) => AdminProduct.fromJson(e as Map<String, dynamic>))
+        .toList();
+  }
+
+  Future<List<AdminCategoryNode>> listCategoryTree() async {
+    final data = await guardedApiCall(
+      _ref,
+      () => _apiClient.getJson(CategoryApiPaths.tree),
+    );
+    return (data as List<dynamic>)
+        .map((e) => AdminCategoryNode.fromJson(e as Map<String, dynamic>))
+        .toList();
+  }
+
+  Future<void> bulkSetCategory(List<int> ids, {required int? categoryId}) async {
+    final token = await _token();
+    await guardedApiCall(
+      _ref,
+      () => _apiClient.postJson(
+        ProductApiPaths.bulkUpdate,
+        body: {'ids': ids, 'categoryId': categoryId},
+        token: token,
+      ),
+    );
+  }
 }

flutter/lib/features/admin/domain/admin_category_node.dart

@@ -0,0 +1,24 @@
+class AdminCategoryNode {
+  final int id;
+  final String name;
+  final int? parentId;
+  final List<AdminCategoryNode> children;
+
+  const AdminCategoryNode({
+    required this.id,
+    required this.name,
+    required this.parentId,
+    required this.children,
+  });
+
+  factory AdminCategoryNode.fromJson(Map<String, dynamic> json) =>
+      AdminCategoryNode(
+        id: (json['id'] as num).toInt(),
+        name: (json['name'] ?? '').toString(),
+        parentId: (json['parentId'] as num?)?.toInt(),
+        children: ((json['children'] as List<dynamic>?) ?? const [])
+            .map((child) =>
+                AdminCategoryNode.fromJson(child as Map<String, dynamic>))
+            .toList(),
+      );
+}

flutter/lib/features/admin/domain/admin_product.dart

@@ -0,0 +1,44 @@
+class AdminProduct {
+  final int id;
+  final String name;
+  final String? canonicalName;
+  final String? normalizedName;
+  final int? categoryId;
+  final String? categoryPath;
+
+  const AdminProduct({
+    required this.id,
+    required this.name,
+    this.canonicalName,
+    this.normalizedName,
+    this.categoryId,
+    this.categoryPath,
+  });
+
+  String get displayName =>
+      canonicalName != null && canonicalName!.trim().isNotEmpty
+          ? canonicalName!
+          : name;
+
+  factory AdminProduct.fromJson(Map<String, dynamic> json) {
+    final categoryRef = json['categoryRef'];
+    final names = <String>[];
+    dynamic current = categoryRef;
+    while (current is Map<String, dynamic>) {
+      final name = current['name']?.toString().trim();
+      if (name != null && name.isNotEmpty) {
+        names.insert(0, name);
+      }
+      current = current['parent'];
+    }
+
+    return AdminProduct(
+      id: (json['id'] as num).toInt(),
+      name: (json['name'] ?? '').toString(),
+      canonicalName: json['canonicalName']?.toString(),
+      normalizedName: json['normalizedName']?.toString(),
+      categoryId: (json['categoryId'] as num?)?.toInt(),
+      categoryPath: names.isEmpty ? null : names.join(' > '),
+    );
+  }
+}

flutter/lib/features/admin/presentation/admin_products_panel.dart

@@ -0,0 +1,237 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+
+import '../../../core/api/api_error_mapper.dart';
+import '../data/admin_repository.dart';
+import '../domain/admin_category_node.dart';
+import '../domain/admin_product.dart';
+
+class AdminProductsPanel extends ConsumerStatefulWidget {
+  final bool embedded;
+
+  const AdminProductsPanel({super.key, this.embedded = false});
+
+  @override
+  ConsumerState<AdminProductsPanel> createState() =>
+      _AdminProductsPanelState();
+}
+
+class _AdminProductsPanelState extends ConsumerState<AdminProductsPanel> {
+  bool _isLoading = true;
+  bool _isApplying = false;
+  String? _error;
+  String _search = '';
+  bool _showUncategorizedOnly = false;
+  String? _bulkCategoryValue;
+  List<AdminProduct> _products = [];
+  List<AdminCategoryNode> _categories = [];
+  final Set<int> _selectedIds = <int>{};
+
+  @override
+  void initState() {
+    super.initState();
+    _load();
+  }
+
+  Future<void> _load() async {
+    setState(() {
+      _isLoading = true;
+      _error = null;
+    });
+    try {
+      final results = await Future.wait<dynamic>([
+        ref.read(adminRepositoryProvider).listProducts(),
+        ref.read(adminRepositoryProvider).listCategoryTree(),
+      ]);
+      if (!mounted) return;
+      setState(() {
+        _products = results[0] as List<AdminProduct>;
+        _categories = results[1] as List<AdminCategoryNode>;
+      });
+    } catch (e) {
+      if (!mounted) return;
+      setState(() => _error = mapErrorToUserMessage(e, context));
+    } finally {
+      if (mounted) setState(() => _isLoading = false);
+    }
+  }
+
+  List<({String value, String label})> _flattenCategories(
+    List<AdminCategoryNode> nodes, [
+    int depth = 0,
+  ]) {
+    final result = <({String value, String label})>[];
+    final sorted = [...nodes]
+      ..sort((a, b) => a.name.toLowerCase().compareTo(b.name.toLowerCase()));
+    for (final node in sorted) {
+      final prefix = depth == 0 ? '' : '${'  ' * depth}↳ ';
+      result.add((value: node.id.toString(), label: '$prefix${node.name}'));
+      result.addAll(_flattenCategories(node.children, depth + 1));
+    }
+    return result;
+  }
+
+  Future<void> _applyBulkCategory() async {
+    if (_selectedIds.isEmpty || _isApplying) return;
+    setState(() => _isApplying = true);
+    try {
+      await ref.read(adminRepositoryProvider).bulkSetCategory(
+            _selectedIds.toList(),
+            categoryId: _bulkCategoryValue == null ||
+                    _bulkCategoryValue == '__remove__'
+                ? null
+                : int.parse(_bulkCategoryValue!),
+          );
+      if (!mounted) return;
+      setState(() {
+        _selectedIds.clear();
+        _bulkCategoryValue = null;
+      });
+      await _load();
+      if (!mounted) return;
+      ScaffoldMessenger.of(context).showSnackBar(
+        const SnackBar(content: Text('Produkter uppdaterade.')),
+      );
+    } catch (e) {
+      if (!mounted) return;
+      ScaffoldMessenger.of(context).showSnackBar(
+        SnackBar(content: Text(mapErrorToUserMessage(e, context))),
+      );
+    } finally {
+      if (mounted) setState(() => _isApplying = false);
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final theme = Theme.of(context);
+    final categoryOptions = _flattenCategories(_categories);
+    final filtered = _products.where((product) {
+      if (_showUncategorizedOnly && product.categoryId != null) {
+        return false;
+      }
+      final query = _search.trim().toLowerCase();
+      if (query.isEmpty) return true;
+      return product.name.toLowerCase().contains(query) ||
+          (product.canonicalName ?? '').toLowerCase().contains(query) ||
+          (product.normalizedName ?? '').toLowerCase().contains(query);
+    }).toList()
+      ..sort((a, b) => b.id.compareTo(a.id));
+
+    if (_isLoading) return const Center(child: CircularProgressIndicator());
+    if (_error != null) {
+      return Center(
+        child: Column(
+          mainAxisSize: MainAxisSize.min,
+          children: [
+            Text(_error!, style: TextStyle(color: theme.colorScheme.error)),
+            const SizedBox(height: 16),
+            FilledButton(onPressed: _load, child: const Text('Försök igen')),
+          ],
+        ),
+      );
+    }
+
+    final content = Column(
+      crossAxisAlignment: CrossAxisAlignment.start,
+      children: [
+        TextField(
+          decoration: const InputDecoration(
+            labelText: 'Sök produkt',
+            prefixIcon: Icon(Icons.search),
+            border: OutlineInputBorder(),
+          ),
+          onChanged: (value) => setState(() => _search = value),
+        ),
+        const SizedBox(height: 12),
+        Wrap(
+          spacing: 8,
+          runSpacing: 8,
+          children: [
+            FilterChip(
+              label: const Text('Endast okategoriserade'),
+              selected: _showUncategorizedOnly,
+              onSelected: (value) =>
+                  setState(() => _showUncategorizedOnly = value),
+            ),
+            SizedBox(
+              width: 260,
+              child: DropdownButtonFormField<String>(
+                initialValue: _bulkCategoryValue,
+                decoration: const InputDecoration(
+                  labelText: 'Bulk: sätt kategori',
+                  border: OutlineInputBorder(),
+                ),
+                items: [
+                  const DropdownMenuItem<String>(
+                    value: '__remove__',
+                    child: Text('Ta bort kategori'),
+                  ),
+                  ...categoryOptions.map(
+                    (option) => DropdownMenuItem<String>(
+                      value: option.value,
+                      child: Text(option.label),
+                    ),
+                  ),
+                ],
+                onChanged: (value) => setState(() => _bulkCategoryValue = value),
+              ),
+            ),
+            FilledButton(
+              onPressed: _selectedIds.isEmpty || _isApplying
+                  ? null
+                  : _applyBulkCategory,
+              child: _isApplying
+                  ? const SizedBox(
+                      height: 18,
+                      width: 18,
+                      child: CircularProgressIndicator(strokeWidth: 2),
+                    )
+                  : Text('Uppdatera valda (${_selectedIds.length})'),
+            ),
+          ],
+        ),
+        const SizedBox(height: 16),
+        if (filtered.isEmpty)
+          const Text('Inga produkter matchar filtret.')
+        else
+          ...filtered.map(
+            (product) => Card(
+              child: CheckboxListTile(
+                value: _selectedIds.contains(product.id),
+                onChanged: (checked) {
+                  setState(() {
+                    if (checked == true) {
+                      _selectedIds.add(product.id);
+                    } else {
+                      _selectedIds.remove(product.id);
+                    }
+                  });
+                },
+                title: Text(product.displayName),
+                subtitle: Text(
+                  [
+                    if (product.displayName != product.name)
+                      'Original: ${product.name}',
+                    'Kategori: ${product.categoryPath ?? 'Saknas'}',
+                    'ID: ${product.id}',
+                  ].join('\n'),
+                ),
+                isThreeLine: true,
+                controlAffinity: ListTileControlAffinity.leading,
+              ),
+            ),
+          ),
+      ],
+    );
+
+    if (!widget.embedded) {
+      return ListView(
+        padding: const EdgeInsets.all(16),
+        children: [content],
+      );
+    }
+
+    return content;
+  }
+}

flutter/lib/features/admin/presentation/admin_users_panel.dart

@@ -61,6 +61,26 @@ class _AdminUsersPanelState extends ConsumerState<AdminUsersPanel> {
     }
   }
 
+  Future<void> _togglePremium(UserAdmin user) async {
+    final newValue = !user.isPremium;
+    final confirmed = await _confirm(
+      context,
+      newValue ? 'Ge Premium' : 'Ta bort Premium',
+      '${newValue ? 'Ge' : 'Ta bort'} Premium för ${user.username}?',
+    );
+    if (!confirmed || !mounted) return;
+    try {
+      await ref
+          .read(adminRepositoryProvider)
+          .setPremium(user.id, isPremium: newValue);
+      if (!mounted) return;
+      _load();
+    } catch (e) {
+      if (!mounted) return;
+      _showError(e);
+    }
+  }
+
   Future<void> _resetPassword(UserAdmin user) async {
     final confirmed = await _confirm(
       context,
@@ -252,6 +272,7 @@ class _AdminUsersPanelState extends ConsumerState<AdminUsersPanel> {
       itemBuilder: (ctx, i) => _UserTile(
         user: _users[i],
         onChangeRole: () => _changeRole(_users[i]),
+        onTogglePremium: () => _togglePremium(_users[i]),
         onResetPassword: () => _resetPassword(_users[i]),
         onDelete: () => _deleteUser(_users[i]),
       ),
@@ -295,12 +316,14 @@ class _AdminUsersPanelState extends ConsumerState<AdminUsersPanel> {
 class _UserTile extends StatelessWidget {
   final UserAdmin user;
   final VoidCallback onChangeRole;
+  final VoidCallback onTogglePremium;
   final VoidCallback onResetPassword;
   final VoidCallback onDelete;
 
   const _UserTile({
     required this.user,
     required this.onChangeRole,
+    required this.onTogglePremium,
     required this.onResetPassword,
     required this.onDelete,
   });
@@ -356,10 +379,16 @@ class _UserTile extends StatelessWidget {
             switch (action) {
               case 'role':
                 onChangeRole();
+                break;
+              case 'premium':
+                onTogglePremium();
+                break;
               case 'reset':
                 onResetPassword();
+                break;
               case 'delete':
                 onDelete();
+                break;
             }
           },
           itemBuilder: (_) => [
@@ -369,6 +398,10 @@ class _UserTile extends StatelessWidget {
                 user.isAdmin ? 'Nedgradera till user' : 'Uppgradera till admin',
               ),
             ),
+            PopupMenuItem(
+              value: 'premium',
+              child: Text(user.isPremium ? 'Ta bort Premium' : 'Ge Premium'),
+            ),
             const PopupMenuItem(
               value: 'reset',
               child: Text('Återställ lösenord'),

flutter/lib/features/profile/presentation/profile_screen.dart

@@ -5,6 +5,7 @@ import 'package:go_router/go_router.dart';
 import '../../../core/api/api_error_mapper.dart';
 import '../../admin/presentation/admin_ai_panel.dart';
 import '../../admin/presentation/admin_pending_products_panel.dart';
+import '../../admin/presentation/admin_products_panel.dart';
 import '../../admin/presentation/admin_users_panel.dart';
 import '../../auth/data/auth_providers.dart';
 import '../data/profile_repository.dart';
@@ -297,14 +298,7 @@ class _ProfileScreenState extends ConsumerState<ProfileScreen> {
           buttonLabel: 'Öppna baslager',
         );
       case _DatabaseTab.products:
-        activeSection = sectionCard(
+        activeSection = const AdminProductsPanel(embedded: true);
-          icon: Icons.category_outlined,
-          title: 'Produkter',
-          description:
-              'Adminhantering av produktkatalogen, inklusive standardisering och vidare produktadministration.',
-          onPressed: () => context.go('/admin'),
-          buttonLabel: 'Öppna Admin',
-        );
     }
 
     return Column(
@@ -338,32 +332,6 @@ class _ProfileScreenState extends ConsumerState<ProfileScreen> {
     );
   }
 
-  Widget _buildAdminPlaceholder(
-    BuildContext context, {
-    required String title,
-    required String description,
-  }) {
-    return Card(
-      child: Padding(
-        padding: const EdgeInsets.all(16),
-        child: Column(
-          crossAxisAlignment: CrossAxisAlignment.start,
-          children: [
-            Text(title, style: Theme.of(context).textTheme.titleMedium),
-            const SizedBox(height: 8),
-            Text(description),
-            const SizedBox(height: 12),
-            FilledButton.icon(
-              onPressed: () => context.go('/admin'),
-              icon: const Icon(Icons.admin_panel_settings_outlined),
-              label: const Text('Öppna Admin'),
-            ),
-          ],
-        ),
-      ),
-    );
-  }
-
   Widget _buildActiveTabContent(BuildContext context, ThemeData theme) {
     switch (_activeTab) {
       case _ProfileTab.profile:

flutter/next_steps_flutter.md

@@ -5,6 +5,8 @@
 - RecipesScreen är nu body-only, ingen egen Scaffold/AppBar.
 - AppShell visar grid-ikon endast på /recipes.
 - Buggfix: Produktväljaren i pantry/inventarie (ProductPickerField) — bottenark implementeras.
+- Sprint 2: Databas > Produkter visar nu en riktig adminpanel i profilflödet med sök, okategoriserat-filter och bulk-kategorisering.
+- Sprint 2: Användare-fliken stödjer nu Premium av/på direkt från användarmenyn.
 - Kodkvalitet: Inga absoluta Windows-sökvägar.
 - Dokumentation och next_steps uppdaterade.
 # Next Steps: Flutter-migrering