feat: implement alias strategy for receipt import with user-scoped and global fallback, enhance validation and normalization, and update UI components

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

@@ -173,6 +173,9 @@ class AdminRepository {
   Future<List<AdminProduct>> listProducts() =>
       _getList(ProductApiPaths.mine, AdminProduct.fromJson);
 
+    Future<List<AdminProduct>> listGlobalProducts() =>
+      _getList(ProductApiPaths.list, AdminProduct.fromJson, requiresAuth: false);
+
   Future<List<AdminProduct>> listDeletedProducts() =>
       _getList(ProductApiPaths.deleted, AdminProduct.fromJson);
 

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

@@ -2,6 +2,8 @@ class ReceiptAlias {
   final int id;
   final String receiptName;
   final int productId;
+  final int? ownerId;
+  final bool isGlobal;
   final String? productName;
   final String? productCanonicalName;
 
@@ -9,10 +11,14 @@ class ReceiptAlias {
     required this.id,
     required this.receiptName,
     required this.productId,
+    required this.ownerId,
+    required this.isGlobal,
     this.productName,
     this.productCanonicalName,
   });
 
+  bool get isPrivate => !isGlobal;
+
   String get displayProductName {
     final canonical = productCanonicalName?.trim();
     if (canonical != null && canonical.isNotEmpty) return canonical;
@@ -33,6 +39,8 @@ class ReceiptAlias {
       productId: (json['productId'] as num?)?.toInt() ??
           (productMap['id'] as num?)?.toInt() ??
           0,
+      ownerId: (json['ownerId'] as num?)?.toInt(),
+      isGlobal: json['isGlobal'] == true,
       productName: productMap['name']?.toString(),
       productCanonicalName: productMap['canonicalName']?.toString(),
     );

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

@@ -46,7 +46,7 @@ class _AdminAliasesPanelState extends ConsumerState<AdminAliasesPanel> {
     try {
       final results = await Future.wait<dynamic>([
         ref.read(adminRepositoryProvider).listReceiptAliases(),
-        ref.read(adminRepositoryProvider).listProducts(),
+        ref.read(adminRepositoryProvider).listGlobalProducts(),
       ]);
       if (!mounted) return;
       setState(() {
@@ -67,7 +67,7 @@ class _AdminAliasesPanelState extends ConsumerState<AdminAliasesPanel> {
   }
 
   Future<void> _upsertAlias() async {
-    final rawAlias = _aliasController.text.trim().toLowerCase();
+    final rawAlias = _aliasController.text.trim();
     final productId = _selectedProductId;
     if (rawAlias.isEmpty || productId == null) {
       ScaffoldMessenger.of(context).showSnackBar(
@@ -186,6 +186,11 @@ class _AdminAliasesPanelState extends ConsumerState<AdminAliasesPanel> {
                   color: Theme.of(context).colorScheme.outline,
                 ),
               ),
+              const SizedBox(height: 4),
+              Chip(
+                visualDensity: VisualDensity.compact,
+                label: Text(alias.isGlobal ? 'Global' : 'Privat'),
+              ),
             ],
           ),
           trailing: IconButton(
@@ -198,17 +203,6 @@ class _AdminAliasesPanelState extends ConsumerState<AdminAliasesPanel> {
       );
     }
 
-    Widget buildAliasList({EdgeInsetsGeometry padding = EdgeInsets.zero}) {
-      return ListView.builder(
-        padding: padding,
-        itemCount: filteredAliases.length,
-        itemBuilder: (context, index) {
-          final alias = filteredAliases[index];
-          return buildAliasCard(alias);
-        },
-      );
-    }
-
     final content = Column(
       crossAxisAlignment: CrossAxisAlignment.start,
       children: [

flutter/lib/features/import/data/import_repository.dart

@@ -265,7 +265,6 @@ class ImportRepository {
   /// - Learning unit mappings
   Future<Map<String, dynamic>> saveReceipt({
     required List<Map<String, dynamic>> items,
-    bool isAdminLearning = false,
     String? token,
   }) async {
     try {
@@ -280,7 +279,6 @@ class ImportRepository {
         },
         body: jsonEncode({
           'items': items,
-          if (isAdminLearning) 'isAdminLearning': true,
         }),
       ).timeout(
         const Duration(seconds: 60),

flutter/lib/features/import/data/receipt_import_session.dart

@@ -16,6 +16,8 @@ enum CategorySelectionSource { ai, manual }
 class ItemEdit {
   final int? productId;
   final String? productName;
+  final bool learnAlias;
+  final bool learnAliasGlobally;
   final int? categoryId;
   final String? categoryPath;
   final CategorySelectionSource? categorySource;
@@ -29,6 +31,8 @@ class ItemEdit {
   const ItemEdit({
     this.productId,
     this.productName,
+    this.learnAlias = false,
+    this.learnAliasGlobally = false,
     this.categoryId,
     this.categoryPath,
     this.categorySource,
@@ -85,6 +89,8 @@ class ReceiptImportSession {
     'edits': edits.map((key, value) => MapEntry(key.toString(), {
       'productId': value.productId,
       'productName': value.productName,
+      'learnAlias': value.learnAlias,
+      'learnAliasGlobally': value.learnAliasGlobally,
       'categoryId': value.categoryId,
       'categoryPath': value.categoryPath,
       'categorySource': value.categorySource?.name,
@@ -114,6 +120,8 @@ class ReceiptImportSession {
       edits[idx] = ItemEdit(
         productId: (value['productId'] as num?)?.toInt(),
         productName: value['productName'] as String?,
+        learnAlias: value['learnAlias'] == true,
+        learnAliasGlobally: value['learnAliasGlobally'] == true,
         categoryId: (value['categoryId'] as num?)?.toInt(),
         categoryPath: value['categoryPath'] as String?,
         categorySource: switch (value['categorySource']) {

flutter/lib/features/import/presentation/edit_dialog.dart

@@ -19,6 +19,7 @@ class EditDialog extends StatefulWidget {
   final List<AdminCategoryNode> categoryTree;
   final Future<ProductOption?> Function(String name, int? categoryId)? onCreate;
   final ImportProductEntryMode? initialEntryMode;
+  final bool canLearnGlobalAlias;
 
   const EditDialog({
     super.key,
@@ -28,6 +29,7 @@ class EditDialog extends StatefulWidget {
     required this.categoryTree,
     this.onCreate,
     this.initialEntryMode,
+    this.canLearnGlobalAlias = false,
   });
 
   @override
@@ -53,6 +55,8 @@ class _EditDialogState extends State<EditDialog> {
   _Destination _destination = _Destination.inventory;
   ImportProductEntryMode _entryMode = ImportProductEntryMode.existing;
   bool _isCreatingProduct = false;
+  bool _learnAlias = false;
+  bool _learnAliasGlobally = false;
 
   // Lokal lista — utökas om nya produkter skapas under dialogen
   late List<ProductOption> _localProducts;
@@ -68,6 +72,8 @@ class _EditDialogState extends State<EditDialog> {
     _productName = widget.current.productName == null
         ? null
         : normalizeProductName(widget.current.productName!);
+    _learnAlias = widget.current.learnAlias;
+    _learnAliasGlobally = widget.current.learnAliasGlobally;
     _destination = widget.current.destination;
     _entryMode = widget.initialEntryMode ??
         (_productId == null
@@ -273,6 +279,8 @@ class _EditDialogState extends State<EditDialog> {
       ItemEdit(
         productId: _productId,
         productName: _productName,
+        learnAlias: _learnAlias,
+        learnAliasGlobally: _learnAlias && widget.canLearnGlobalAlias && _learnAliasGlobally,
         categoryId: _productCategoryId,
         categoryPath: _productCategoryPath,
         categorySource: _productCategorySource,
@@ -358,6 +366,8 @@ class _EditDialogState extends State<EditDialog> {
             else
               _buildCreateProductSection(theme, aiLabel),
             const SizedBox(height: 12),
+            _buildAliasSection(theme, item),
+            const SizedBox(height: 12),
             if (_destination == _Destination.inventory)
               _buildQuantitySection(theme, totalPreview, currentUnit)
             else
@@ -429,6 +439,70 @@ class _EditDialogState extends State<EditDialog> {
         style: const ButtonStyle(visualDensity: VisualDensity.compact),
       );
 
+  Widget _buildAliasSection(ThemeData theme, ParsedReceiptItem item) {
+    final alreadyAliasMatch =
+        _entryMode == ImportProductEntryMode.existing &&
+        _productId != null &&
+        item.matchedVia == 'alias' &&
+        item.matchedProductId == _productId;
+
+    if (alreadyAliasMatch) {
+      return Container(
+        width: double.infinity,
+        padding: const EdgeInsets.all(12),
+        decoration: BoxDecoration(
+          color: theme.colorScheme.primaryContainer.withValues(alpha: 0.45),
+          borderRadius: BorderRadius.circular(12),
+        ),
+        child: Text(
+          'Det här kvittonamnet matchades redan via alias. Ingen ny aliasinlärning behövs.',
+          style: theme.textTheme.bodySmall,
+        ),
+      );
+    }
+
+    return Column(
+      crossAxisAlignment: CrossAxisAlignment.start,
+      children: [
+        CheckboxListTile(
+          contentPadding: EdgeInsets.zero,
+          value: _learnAlias,
+          onChanged: (value) => setState(() {
+            _learnAlias = value ?? false;
+            if (!_learnAlias) _learnAliasGlobally = false;
+          }),
+          title: const Text('Lär detta kvittonamn för framtiden'),
+          subtitle: const Text(
+            'Sparar ett alias så att samma kvittonamn kan matchas direkt vid nästa import.',
+          ),
+          controlAffinity: ListTileControlAffinity.leading,
+        ),
+        if (widget.canLearnGlobalAlias && _learnAlias)
+          Padding(
+            padding: const EdgeInsets.only(left: 12),
+            child: SegmentedButton<bool>(
+              segments: const [
+                ButtonSegment<bool>(
+                  value: false,
+                  label: Text('Privat alias'),
+                  icon: Icon(Icons.lock_outline, size: 16),
+                ),
+                ButtonSegment<bool>(
+                  value: true,
+                  label: Text('Global fallback'),
+                  icon: Icon(Icons.public_outlined, size: 16),
+                ),
+              ],
+              selected: {_learnAliasGlobally},
+              onSelectionChanged: (selection) =>
+                  setState(() => _learnAliasGlobally = selection.first),
+              style: const ButtonStyle(visualDensity: VisualDensity.compact),
+            ),
+          ),
+      ],
+    );
+  }
+
   Widget _buildExistingProductSection(
     ThemeData theme,
     ParsedReceiptItem item,

flutter/lib/features/import/presentation/receipt_import_tab.dart

@@ -402,6 +402,7 @@ class _ReceiptImportTabState extends ConsumerState<ReceiptImportTab> {
         products: _products,
         categoryTree: _categoryTree,
         initialEntryMode: initialEntryMode,
+        canLearnGlobalAlias: ref.read(isAdminProvider),
         onCreate: (name, categoryId) async {
           final token = await ref.read(authStateProvider.future);
           final api = ref.read(apiClientProvider);
@@ -478,7 +479,6 @@ class _ReceiptImportTabState extends ConsumerState<ReceiptImportTab> {
     try {
       final token = await ref.read(authStateProvider.future);
       final repo = ref.read(importRepositoryProvider);
-      final canManageAliases = ref.read(isAdminProvider);
 
       // Bygg upp items för saveReceipt endpoint
       final saveItems = <Map<String, dynamic>>[];
@@ -507,10 +507,13 @@ class _ReceiptImportTabState extends ConsumerState<ReceiptImportTab> {
           if (edit.packageCount != null) saveItem['packageCount'] = edit.packageCount;
         }
 
-        // Lär in alias om den inte redan matchades via alias
+        // Lär in alias bara om användaren uttryckligen valt det
         final alreadyAliasMatch = item.matchedVia == 'alias' && item.matchedProductId == pid;
-        if (item.rawName.trim().isNotEmpty && !alreadyAliasMatch) {
+        if (edit.learnAlias && item.rawName.trim().isNotEmpty && !alreadyAliasMatch) {
           saveItem['learnAlias'] = true;
+          if (edit.learnAliasGlobally) {
+            saveItem['learnAliasGlobally'] = true;
+          }
         }
 
         // Lär in enhetsmappning för inventory
@@ -528,7 +531,6 @@ class _ReceiptImportTabState extends ConsumerState<ReceiptImportTab> {
       // Gör ett enda anrop till saveReceipt
       final response = await repo.saveReceipt(
         items: saveItems,
-        isAdminLearning: canManageAliases,
         token: token,
       );
 

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

@@ -31,7 +31,11 @@ class _UserAliasesScreenState extends ConsumerState<UserAliasesScreen> {
       final aliases = await ref.read(adminRepositoryProvider).listReceiptAliases();
       if (!mounted) return;
       setState(() {
-        _aliases = aliases;
+        _aliases = [...aliases]
+          ..sort((a, b) {
+            if (a.isGlobal != b.isGlobal) return a.isGlobal ? 1 : -1;
+            return a.receiptName.compareTo(b.receiptName);
+          });
       });
     } catch (e) {
       if (!mounted) return;
@@ -118,7 +122,7 @@ class _UserAliasesScreenState extends ConsumerState<UserAliasesScreen> {
                   ),
                   const SizedBox(height: 8),
                   Text(
-                    'Alias skapas automatiskt när du sparar kvittorader i inventariet.',
+                    'Alias skapas när du väljer att lära in dem under kvittoimporten.',
                     style: theme.textTheme.bodySmall?.copyWith(color: theme.colorScheme.onSurfaceVariant),
                     textAlign: TextAlign.center,
                   ),
@@ -135,23 +139,41 @@ class _UserAliasesScreenState extends ConsumerState<UserAliasesScreen> {
             final alias = _aliases[i];
             return ListTile(
               leading: Icon(
-                Icons.link_outlined,
+                alias.isGlobal ? Icons.public_outlined : Icons.link_outlined,
                 color: theme.colorScheme.primary,
               ),
               title: Text(
                 alias.receiptName,
                 style: theme.textTheme.bodyMedium?.copyWith(fontWeight: FontWeight.w500),
               ),
-              subtitle: Text(
-                '→ ${alias.displayProductName}',
-                style: theme.textTheme.bodySmall,
-              ),
-              trailing: IconButton(
-                icon: const Icon(Icons.delete_outline),
-                tooltip: 'Ta bort alias',
-                color: theme.colorScheme.error,
-                onPressed: () => _delete(alias),
+              subtitle: Column(
+                crossAxisAlignment: CrossAxisAlignment.start,
+                mainAxisSize: MainAxisSize.min,
+                children: [
+                  Text(
+                    '→ ${alias.displayProductName}',
+                    style: theme.textTheme.bodySmall,
+                  ),
+                  const SizedBox(height: 4),
+                  Wrap(
+                    spacing: 8,
+                    children: [
+                      Chip(
+                        visualDensity: VisualDensity.compact,
+                        label: Text(alias.isGlobal ? 'Global fallback' : 'Privat alias'),
+                      ),
+                    ],
+                  ),
+                ],
               ),
+              trailing: alias.isPrivate
+                  ? IconButton(
+                      icon: const Icon(Icons.delete_outline),
+                      tooltip: 'Ta bort alias',
+                      color: theme.colorScheme.error,
+                      onPressed: () => _delete(alias),
+                    )
+                  : null,
             );
           },
         );