feat: Add bulk delete and merge functionality for inventory items with DTOs and API endpoints

backend/src/inventory/dto/bulk-delete-inventory.dto.ts

@@ -0,0 +1,11 @@
+import { Type } from 'class-transformer';
+import { ArrayMinSize, IsArray, IsInt, Min } from 'class-validator';
+
+export class BulkDeleteInventoryDto {
+  @IsArray()
+  @ArrayMinSize(1)
+  @Type(() => Number)
+  @IsInt({ each: true })
+  @Min(1, { each: true })
+  ids!: number[];
+}

backend/src/inventory/dto/merge-many-inventory.dto.ts

@@ -0,0 +1,15 @@
+import { Type } from 'class-transformer';
+import { ArrayMinSize, IsArray, IsInt, IsOptional, IsString, Min } from 'class-validator';
+
+export class MergeManyInventoryDto {
+  @IsArray()
+  @ArrayMinSize(2)
+  @Type(() => Number)
+  @IsInt({ each: true })
+  @Min(1, { each: true })
+  ids!: number[];
+
+  @IsOptional()
+  @IsString()
+  targetUnit?: string;
+}

backend/src/inventory/inventory.controller.ts

@@ -18,6 +18,8 @@ import { CurrentUser } from '../auth/decorators/current-user.decorator';
 import { Roles } from '../auth/decorators/roles.decorator';
 import { MergeInventoryDto } from './dto/merge-inventory.dto';
 import { CreateAdminInventoryDto } from './dto/create-admin-inventory.dto';
+import { BulkDeleteInventoryDto } from './dto/bulk-delete-inventory.dto';
+import { MergeManyInventoryDto } from './dto/merge-many-inventory.dto';
 
 @Controller('inventory')
 export class InventoryController {
@@ -97,6 +99,22 @@ export class InventoryController {
       targetInventoryId,
     );
   }
+
+  @Post('merge-many')
+  mergeMany(
+    @CurrentUser() user: { userId: number },
+    @Body() body: MergeManyInventoryDto,
+  ) {
+    return this.inventoryService.mergeMany(user.userId, body.ids, body.targetUnit);
+  }
+
+  @Post('bulk-delete')
+  bulkDelete(
+    @CurrentUser() user: { userId: number },
+    @Body() body: BulkDeleteInventoryDto,
+  ) {
+    return this.inventoryService.bulkDelete(user.userId, body.ids);
+  }
  
  @Post(':id/consume')
  consume(

backend/src/inventory/inventory.service.ts

@@ -4,6 +4,7 @@ import { Prisma } from '@prisma/client';
 import { PrismaService } from '../prisma/prisma.service';
 import { CreateInventoryDto } from './dto/create-inventory.dto';
 import { UpdateInventoryDto } from './dto/update-inventory.dto';
+import { convertUnit, normalizeUnit } from '../common/utils/units';
 
 type InventoryQuery = {
   location?: string;
@@ -348,6 +349,132 @@ export class InventoryService {
     return this.prisma.inventoryItem.delete({ where: { id } });
   }
 
+  async bulkDelete(userId: number, ids: number[]) {
+    const uniqueIds = [...new Set(ids)];
+    if (uniqueIds.length === 0) {
+      throw new BadRequestException('No inventory ids supplied');
+    }
+
+    const items = await this.prisma.inventoryItem.findMany({
+      where: { id: { in: uniqueIds }, userId },
+      select: { id: true },
+    });
+
+    if (items.length !== uniqueIds.length) {
+      throw new ForbiddenException('One or more inventory items are missing or do not belong to current user');
+    }
+
+    const result = await this.prisma.inventoryItem.deleteMany({
+      where: { id: { in: uniqueIds }, userId },
+    });
+
+    return { deletedCount: result.count };
+  }
+
+  async mergeMany(userId: number, ids: number[], targetUnit?: string) {
+    const uniqueIds = [...new Set(ids)];
+    if (uniqueIds.length < 2) {
+      throw new BadRequestException('At least two inventory items are required to merge');
+    }
+
+    const items = await this.prisma.inventoryItem.findMany({
+      where: { id: { in: uniqueIds }, userId },
+      include: {
+        product: this.productWithCategoryInclude,
+      },
+      orderBy: { createdAt: 'asc' },
+    });
+
+    if (items.length !== uniqueIds.length) {
+      throw new ForbiddenException('One or more inventory items are missing or do not belong to current user');
+    }
+
+    const firstProductId = items[0].productId;
+    if (items.some((item) => item.productId !== firstProductId)) {
+      throw new BadRequestException('Selected inventory items must belong to the same product');
+    }
+
+    const normalizedUnits = new Set(items.map((item) => normalizeUnit(item.unit)));
+    const resolvedTargetUnitRaw = targetUnit?.trim();
+
+    if (!resolvedTargetUnitRaw && normalizedUnits.size > 1) {
+      throw new BadRequestException('targetUnit is required when merging different units');
+    }
+
+    const resolvedTargetUnit = normalizeUnit(
+      resolvedTargetUnitRaw && resolvedTargetUnitRaw.length > 0
+        ? resolvedTargetUnitRaw
+        : items[0].unit,
+    );
+
+    if (!items.some((item) => normalizeUnit(item.unit) === resolvedTargetUnit)) {
+      throw new BadRequestException('targetUnit must match one of the selected item units');
+    }
+
+    let mergedQuantity = 0;
+    for (const item of items) {
+      const quantity = Number(item.quantity);
+      try {
+        mergedQuantity += convertUnit(quantity, item.unit, resolvedTargetUnit);
+      } catch {
+        throw new BadRequestException(
+          `Cannot merge item ${item.id}: incompatible unit "${item.unit}" for target unit "${resolvedTargetUnit}"`,
+        );
+      }
+    }
+
+    const target =
+      items.find((item) => normalizeUnit(item.unit) === resolvedTargetUnit) ??
+      items[0];
+    const sourceItems = items.filter((item) => item.id !== target.id);
+
+    const firstNonNull = <T>(values: (T | null | undefined)[]): T | null => {
+      for (const value of values) {
+        if (value !== null && value !== undefined) {
+          return value;
+        }
+      }
+      return null;
+    };
+
+    return this.prisma.$transaction(async (tx) => {
+      const updated = await tx.inventoryItem.update({
+        where: { id: target.id },
+        data: {
+          quantity: new Prisma.Decimal(mergedQuantity),
+          unit: resolvedTargetUnit,
+          location: target.location ?? firstNonNull(sourceItems.map((s) => s.location)),
+          brand: target.brand ?? firstNonNull(sourceItems.map((s) => s.brand)),
+          origin: target.origin ?? firstNonNull(sourceItems.map((s) => s.origin)),
+          receiptName: target.receiptName ?? firstNonNull(sourceItems.map((s) => s.receiptName)),
+          purchaseDate: target.purchaseDate ?? firstNonNull(sourceItems.map((s) => s.purchaseDate)),
+          opened: target.opened,
+          suitableFor: target.suitableFor ?? firstNonNull(sourceItems.map((s) => s.suitableFor)),
+          bestBeforeDate: target.bestBeforeDate ?? firstNonNull(sourceItems.map((s) => s.bestBeforeDate)),
+          comment: target.comment ?? firstNonNull(sourceItems.map((s) => s.comment)),
+        },
+        include: {
+          product: this.productWithCategoryInclude,
+        },
+      });
+
+      const sourceIds = sourceItems.map((item) => item.id);
+
+      if (sourceIds.length > 0) {
+        await tx.inventoryConsumption.updateMany({
+          where: { inventoryItemId: { in: sourceIds } },
+          data: { inventoryItemId: target.id },
+        });
+
+        await tx.inventoryItem.deleteMany({
+          where: { id: { in: sourceIds }, userId },
+        });
+      }
+
+      return updated;
+    });
+  }
+
   private async moveInventoryItemToPantryCore(item: {
     id: number;
     userId: number;

flutter/lib/core/api/api_paths.dart

@@ -59,6 +59,8 @@ class RecipeApiPaths {
 
 class InventoryApiPaths {
   static const list = '/inventory';
+  static const mergeMany = '/inventory/merge-many';
+  static const bulkDelete = '/inventory/bulk-delete';
   static String update(int id) => '/inventory/$id';
   static String remove(int id) => '/inventory/$id';
   static String moveToPantry(int id) => '/inventory/$id/move-to-pantry';

flutter/lib/core/ui/app_shell.dart

@@ -168,12 +168,19 @@ class AppShell extends ConsumerWidget {
           PopupMenuButton<String>(
             tooltip: 'Profil och konto',
             icon: const Icon(Icons.account_circle_outlined),
-            onSelected: (value) {
+            onSelected: (value) async {
               switch (value) {
                 case 'profile':
                   if (location != '/profile' && context.mounted) {
                     onNavigateToPath('/profile');
                   }
+                  break;
+                case 'logout':
+                  await ref.read(authStateProvider.notifier).logout();
+                  if (context.mounted) {
+                    onNavigateToPath('/login');
+                  }
+                  break;
               }
             },
             itemBuilder: (context) => const [
@@ -185,6 +192,15 @@ class AppShell extends ConsumerWidget {
                   contentPadding: EdgeInsets.zero,
                 ),
               ),
+              PopupMenuDivider(),
+              PopupMenuItem<String>(
+                value: 'logout',
+                child: ListTile(
+                  leading: Icon(Icons.logout),
+                  title: Text('Logga ut'),
+                  contentPadding: EdgeInsets.zero,
+                ),
+              ),
             ],
           ),
         ],

flutter/lib/features/inventory/data/inventory_repository.dart

@@ -52,6 +52,31 @@ class InventoryRepository {
     await _api.deleteJson(InventoryApiPaths.remove(id), token: token);
   }
 
+  Future<void> bulkDeleteInventoryItems(List<int> ids, {String? token}) async {
+    await _api.postJson(
+      InventoryApiPaths.bulkDelete,
+      body: {'ids': ids},
+      token: token,
+    );
+  }
+
+  Future<InventoryItem> mergeInventoryItems(
+    List<int> ids, {
+    String? targetUnit,
+    String? token,
+  }) async {
+    final body = <String, dynamic>{'ids': ids};
+    if (targetUnit != null && targetUnit.trim().isNotEmpty) {
+      body['targetUnit'] = targetUnit.trim();
+    }
+    final data = await _api.postJson(
+      InventoryApiPaths.mergeMany,
+      body: body,
+      token: token,
+    );
+    return InventoryItem.fromJson(data as Map<String, dynamic>);
+  }
+
   Future<void> moveInventoryItemToPantry(int id, {String? token}) async {
     await _api.postJson(InventoryApiPaths.moveToPantry(id), body: null, token: token);
   }

flutter/lib/features/inventory/presentation/inventory_screen.dart

@@ -5,13 +5,27 @@ import 'package:go_router/go_router.dart';
 import '../../../core/api/api_error_mapper.dart';
 import '../../../core/l10n/l10n.dart';
 import '../../../core/ui/async_state_views.dart';
+import '../../auth/data/auth_providers.dart';
 import '../data/inventory_providers.dart';
 import 'swipeable_inventory_tile.dart';
 
-class InventoryScreen extends ConsumerWidget {
+class InventoryScreen extends ConsumerStatefulWidget {
   const InventoryScreen({super.key});
 
+  @override
+  ConsumerState<InventoryScreen> createState() => _InventoryScreenState();
+}
+
+class _InventoryScreenState extends ConsumerState<InventoryScreen> {
+  final Set<int> _selectedIds = <int>{};
+
   static const _locationOptions = <String>['', 'Kyl', 'Frys', 'Skafferi'];
+
+  static const _weightOrVolumeUnits = <String>{
+    'g', 'gram', 'mg', 'milligram', 'hg', 'hektogram', 'kg', 'kilo', 'kilogram',
+    'ml', 'milliliter', 'cl', 'centiliter', 'dl', 'deciliter', 'l', 'liter',
+  };
+
   List<({String value, String label})> _sortOptions(BuildContext context) => [
     (value: '', label: context.l10n.inventorySortLatest),
     (value: 'nameAsc', label: context.l10n.inventorySortNameAsc),
@@ -20,6 +34,232 @@ class InventoryScreen extends ConsumerWidget {
     (value: 'l1CategoryAsc', label: 'L1-kategori (A-O)'),
   ];
 
+  void _startSelection(int id) {
+    setState(() {
+      _selectedIds.add(id);
+    });
+  }
+
+  void _toggleSelection(int id) {
+    setState(() {
+      if (_selectedIds.contains(id)) {
+        _selectedIds.remove(id);
+      } else {
+        _selectedIds.add(id);
+      }
+    });
+  }
+
+  void _clearSelection() {
+    setState(() {
+      _selectedIds.clear();
+    });
+  }
+
+  void _selectAllVisible(List<dynamic> visibleItems) {
+    setState(() {
+      _selectedIds
+        ..clear()
+        ..addAll(visibleItems.map<int>((item) => item.id as int));
+    });
+  }
+
+  bool _isWeightOrVolumeUnit(String unit) {
+    return _weightOrVolumeUnits.contains(unit.trim().toLowerCase());
+  }
+
+  String _preferredUnit(List<String> units) {
+    for (final unit in units) {
+      if (_isWeightOrVolumeUnit(unit)) return unit;
+    }
+    return units.first;
+  }
+
+  Future<String?> _askMergeTargetUnit(BuildContext context, List<String> units) async {
+    if (units.isEmpty) return null;
+    if (units.length == 1) return units.first;
+
+    var selected = _preferredUnit(units);
+
+    return showDialog<String>(
+      context: context,
+      builder: (dialogContext) => StatefulBuilder(
+        builder: (dialogContext, setDialogState) => AlertDialog(
+          title: const Text('Välj enhet för merge'),
+          content: Column(
+            mainAxisSize: MainAxisSize.min,
+            crossAxisAlignment: CrossAxisAlignment.start,
+            children: [
+              const Text(
+                'Poster har olika enhet. Välj vilken enhet den sammanslagna posten ska använda.',
+              ),
+              const SizedBox(height: 12),
+              DropdownButtonFormField<String>(
+                initialValue: selected,
+                decoration: const InputDecoration(
+                  labelText: 'Enhet',
+                  border: OutlineInputBorder(),
+                ),
+                items: units
+                    .map(
+                      (unit) => DropdownMenuItem<String>(
+                        value: unit,
+                        child: Text(unit),
+                      ),
+                    )
+                    .toList(),
+                onChanged: (value) {
+                  if (value == null) return;
+                  setDialogState(() => selected = value);
+                },
+              ),
+            ],
+          ),
+          actions: [
+            TextButton(
+              onPressed: () => Navigator.pop(dialogContext),
+              child: Text(context.l10n.cancelAction),
+            ),
+            FilledButton(
+              onPressed: () => Navigator.pop(dialogContext, selected),
+              child: const Text('Merge'),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+
+  Future<void> _mergeSelected(BuildContext context, List<dynamic> allItems) async {
+    final selectedItems = allItems
+        .where((item) => _selectedIds.contains(item.id))
+        .toList();
+
+    if (selectedItems.length < 2) {
+      ScaffoldMessenger.of(context).showSnackBar(
+        const SnackBar(content: Text('Välj minst två poster för merge.')),
+      );
+      return;
+    }
+
+    final productIds = selectedItems.map((item) => item.productId).toSet();
+    if (productIds.length > 1) {
+      ScaffoldMessenger.of(context).showSnackBar(
+        const SnackBar(content: Text('Valda poster måste ha samma produkt för merge.')),
+      );
+      return;
+    }
+
+    final units = <String>[];
+    final seenUnits = <String>{};
+    for (final item in selectedItems) {
+      final unit = (item.unit as String).trim();
+      final key = unit.toLowerCase();
+      if (seenUnits.add(key)) {
+        units.add(unit);
+      }
+    }
+
+    final targetUnit = await _askMergeTargetUnit(context, units);
+    if (!context.mounted || targetUnit == null) return;
+
+    try {
+      final token = await ref.read(authStateProvider.future);
+      final ids = selectedItems.map<int>((item) => item.id as int).toList();
+      await ref.read(inventoryRepositoryProvider).mergeInventoryItems(
+            ids,
+            targetUnit: units.length > 1 ? targetUnit : null,
+            token: token,
+          );
+      ref.invalidate(inventoryProvider);
+      if (!mounted) return;
+      setState(() => _selectedIds.clear());
+      ScaffoldMessenger.of(context).showSnackBar(
+        const SnackBar(content: Text('Poster sammanslagna.')),
+      );
+    } catch (e) {
+      if (!mounted) return;
+      ScaffoldMessenger.of(context).showSnackBar(
+        buildCopyableErrorSnackBar(context, mapErrorToUserMessage(e, context)),
+      );
+    }
+  }
+
+  Future<void> _deleteSelected(BuildContext context, List<dynamic> allItems) async {
+    final ids = allItems
+        .where((item) => _selectedIds.contains(item.id))
+        .map<int>((item) => item.id as int)
+        .toList();
+    if (ids.isEmpty) return;
+
+    final confirmed = await showDialog<bool>(
+      context: context,
+      builder: (dialogContext) => AlertDialog(
+        title: const Text('Ta bort markerade poster'),
+        content: Text('Vill du verkligen ta bort ${ids.length} markerade poster?'),
+        actions: [
+          TextButton(
+            onPressed: () => Navigator.pop(dialogContext, false),
+            child: Text(context.l10n.cancelAction),
+          ),
+          FilledButton(
+            onPressed: () => Navigator.pop(dialogContext, true),
+            child: Text(context.l10n.deleteAction),
+          ),
+        ],
+      ),
+    );
+
+    if (confirmed != true || !context.mounted) return;
+
+    try {
+      final token = await ref.read(authStateProvider.future);
+      await ref.read(inventoryRepositoryProvider).bulkDeleteInventoryItems(ids, token: token);
+      ref.invalidate(inventoryProvider);
+      if (!mounted) return;
+      setState(() => _selectedIds.clear());
+      ScaffoldMessenger.of(context).showSnackBar(
+        SnackBar(content: Text('${ids.length} poster borttagna.')),
+      );
+    } catch (e) {
+      if (!mounted) return;
+      ScaffoldMessenger.of(context).showSnackBar(
+        buildCopyableErrorSnackBar(context, mapErrorToUserMessage(e, context)),
+      );
+    }
+  }
+
+  Future<void> _openBulkActions(BuildContext context, List<dynamic> allItems) async {
+    if (_selectedIds.isEmpty) return;
+    final action = await showDialog<String>(
+      context: context,
+      builder: (dialogContext) => AlertDialog(
+        title: const Text('Hantera markerade poster'),
+        content: Text('Du har markerat ${_selectedIds.length} poster. Välj åtgärd.'),
+        actions: [
+          TextButton(
+            onPressed: () => Navigator.pop(dialogContext),
+            child: Text(context.l10n.cancelAction),
+          ),
+          OutlinedButton(
+            onPressed: () => Navigator.pop(dialogContext, 'delete'),
+            child: Text(context.l10n.deleteAction),
+          ),
+          FilledButton(
+            onPressed: () => Navigator.pop(dialogContext, 'merge'),
+            child: const Text('Merge'),
+          ),
+        ],
+      ),
+    );
+
+    if (action == 'merge') {
+      await _mergeSelected(context, allItems);
+    } else if (action == 'delete') {
+      await _deleteSelected(context, allItems);
+    }
+  }
+
   @override
   Widget build(BuildContext context, WidgetRef ref) {
     final location = ref.watch(inventoryLocationFilterProvider);
@@ -33,6 +273,17 @@ class InventoryScreen extends ConsumerWidget {
         onRetry: () => ref.invalidate(inventoryProvider),
       ),
       data: (items) {
+        final itemIds = items.map((item) => item.id).toSet();
+        final staleIds = _selectedIds.where((id) => !itemIds.contains(id)).toList();
+        if (staleIds.isNotEmpty) {
+          WidgetsBinding.instance.addPostFrameCallback((_) {
+            if (!mounted) return;
+            setState(() {
+              _selectedIds.removeWhere((id) => !itemIds.contains(id));
+            });
+          });
+        }
+
         final visibleItems = [...items];
         if (sort == 'l1CategoryAsc') {
           visibleItems.sort((a, b) {
@@ -125,6 +376,48 @@ class InventoryScreen extends ConsumerWidget {
           ),
         );
 
+        final selectedSection = _selectedIds.isEmpty
+            ? const SizedBox.shrink()
+            : Padding(
+                padding: const EdgeInsets.fromLTRB(12, 4, 12, 4),
+                child: Card(
+                  child: Padding(
+                    padding: const EdgeInsets.all(12),
+                    child: Column(
+                      crossAxisAlignment: CrossAxisAlignment.start,
+                      children: [
+                        Text(
+                          '${_selectedIds.length} markerade poster',
+                          style: Theme.of(context).textTheme.titleSmall,
+                        ),
+                        const SizedBox(height: 8),
+                        Wrap(
+                          spacing: 8,
+                          runSpacing: 8,
+                          children: [
+                            FilledButton.icon(
+                              onPressed: () => _openBulkActions(context, items),
+                              icon: const Icon(Icons.playlist_add_check),
+                              label: const Text('Hantera markerade'),
+                            ),
+                            OutlinedButton.icon(
+                              onPressed: () => _selectAllVisible(visibleItems),
+                              icon: const Icon(Icons.select_all),
+                              label: const Text('Markera alla synliga'),
+                            ),
+                            OutlinedButton.icon(
+                              onPressed: _clearSelection,
+                              icon: const Icon(Icons.deselect),
+                              label: const Text('Avmarkera'),
+                            ),
+                          ],
+                        ),
+                      ],
+                    ),
+                  ),
+                ),
+              );
+
         if (visibleItems.isEmpty) {
           return Stack(
             children: [
@@ -133,6 +426,7 @@ class InventoryScreen extends ConsumerWidget {
                 padding: const EdgeInsets.only(bottom: 88),
                 children: [
                   headerSection,
+                  selectedSection,
                   filterSection,
                   EmptyStateView(title: context.l10n.inventoryEmpty),
                 ],
@@ -155,13 +449,26 @@ class InventoryScreen extends ConsumerWidget {
             ListView.separated(
               key: const PageStorageKey<String>('inventory-main-list'),
               padding: const EdgeInsets.only(bottom: 88),
-              itemCount: visibleItems.length + 2,
+              itemCount: visibleItems.length + (_selectedIds.isEmpty ? 2 : 3),
               separatorBuilder: (_, __) => const Divider(height: 1),
               itemBuilder: (context, index) {
                 if (index == 0) return filterSection;
                 if (index == 1) return headerSection;
-                final item = visibleItems[index - 2];
+                if (_selectedIds.isNotEmpty && index == 2) return selectedSection;
-                return SwipeableInventoryTile(item: item);
+                final item = visibleItems[index - (_selectedIds.isEmpty ? 2 : 3)];
+                return SwipeableInventoryTile(
+                  item: item,
+                  selectableMode: _selectedIds.isNotEmpty,
+                  selected: _selectedIds.contains(item.id),
+                  onToggleSelected: () => _toggleSelection(item.id),
+                  onLongPress: () {
+                    if (_selectedIds.isEmpty) {
+                      _startSelection(item.id);
+                    } else {
+                      _toggleSelection(item.id);
+                    }
+                  },
+                );
               },
             ),
             Positioned(

flutter/lib/features/inventory/presentation/swipeable_inventory_tile.dart

@@ -52,8 +52,19 @@ String _fmtStep(double step) =>
 /// know the gesture is available without any extra instruction.
 class SwipeableInventoryTile extends ConsumerStatefulWidget {
   final InventoryItem item;
+  final bool selectableMode;
+  final bool selected;
+  final VoidCallback? onToggleSelected;
+  final VoidCallback? onLongPress;
 
-  const SwipeableInventoryTile({super.key, required this.item});
+  const SwipeableInventoryTile({
+    super.key,
+    required this.item,
+    this.selectableMode = false,
+    this.selected = false,
+    this.onToggleSelected,
+    this.onLongPress,
+  });
 
   @override
   ConsumerState<SwipeableInventoryTile> createState() =>
@@ -74,14 +85,14 @@ class _SwipeableInventoryTileState
   // ── Gesture handlers ────────────────────────────────────────────────────
 
   void _onUpdate(DragUpdateDetails d) {
-    if (_acting) return;
+    if (_acting || widget.selectableMode) return;
     setState(() {
       _drag = (_drag + d.delta.dx).clamp(-_maxReveal, _maxReveal);
     });
   }
 
   void _onEnd(DragEndDetails d) {
-    if (_acting) return;
+    if (_acting || widget.selectableMode) return;
     if (_drag > _threshold) {
       _adjust(1);
     } else if (_drag < -_threshold) {
@@ -144,10 +155,28 @@ class _SwipeableInventoryTileState
     final stepLabel = _fmtStep(step);
     final unit = widget.item.unit;
 
+    final foreground = _ForegroundTile(
+      item: widget.item,
+      acting: _acting,
+      selectableMode: widget.selectableMode,
+      selected: widget.selected,
+      onToggleSelected: widget.onToggleSelected,
+      onLongPress: widget.onLongPress,
+    );
+
+    if (widget.selectableMode) {
+      return GestureDetector(
+        onLongPress: widget.onLongPress,
+        behavior: HitTestBehavior.opaque,
+        child: foreground,
+      );
+    }
+
     return GestureDetector(
       onHorizontalDragUpdate: _onUpdate,
       onHorizontalDragEnd: _onEnd,
       onHorizontalDragCancel: _snapBack,
+      onLongPress: widget.onLongPress,
       behavior: HitTestBehavior.opaque,
       child: ClipRect(
         child: Stack(
@@ -226,7 +255,7 @@ class _SwipeableInventoryTileState
             // ── Foreground tile ─────────────────────────────────────────
             Transform.translate(
               offset: Offset(_drag, 0),
-              child: _ForegroundTile(item: widget.item, acting: _acting),
+              child: foreground,
             ),
           ],
         ),
@@ -240,8 +269,19 @@ class _SwipeableInventoryTileState
 class _ForegroundTile extends ConsumerWidget {
   final InventoryItem item;
   final bool acting;
+  final bool selectableMode;
+  final bool selected;
+  final VoidCallback? onToggleSelected;
+  final VoidCallback? onLongPress;
 
-  const _ForegroundTile({required this.item, required this.acting});
+  const _ForegroundTile({
+    required this.item,
+    required this.acting,
+    this.selectableMode = false,
+    this.selected = false,
+    this.onToggleSelected,
+    this.onLongPress,
+  });
 
   @override
   Widget build(BuildContext context, WidgetRef ref) {
@@ -258,16 +298,24 @@ class _ForegroundTile extends ConsumerWidget {
       // Opaque background so the tile sits on top of the reveal panels.
       color: theme.colorScheme.surface,
       child: ListTile(
-        title: Text(item.productName),
+        leading: selectableMode
+            ? Checkbox(
+                value: selected,
+                onChanged: (_) => onToggleSelected?.call(),
+              )
+            : null,
+        title: Text(item.displayName),
         // Subtitle: small swipe-hint icon + text on the same row.
         subtitle: Row(
           children: [
-            Icon(
+            if (!selectableMode) ...[
-              Icons.swap_horiz,
+              Icon(
-              size: 13,
+                Icons.swap_horiz,
-              color: theme.colorScheme.outline,
+                size: 13,
-            ),
+                color: theme.colorScheme.outline,
-            const SizedBox(width: 3),
+              ),
+              const SizedBox(width: 3),
+            ],
             Expanded(
               child: Text(
                 subtitleText,
@@ -282,8 +330,11 @@ class _ForegroundTile extends ConsumerWidget {
                 height: 24,
                 child: CircularProgressIndicator(strokeWidth: 2),
               )
-            : _TrailingActions(item: item),
+            : (selectableMode ? null : _TrailingActions(item: item)),
-        onTap: () => context.push('/inventory/${item.id}'),
+        onTap: selectableMode
+            ? onToggleSelected
+            : () => context.push('/inventory/${item.id}'),
+        onLongPress: onLongPress,
       ),
     );
   }