multiple receipts in a trip

docs/receipt-parsing.md

@@ -23,21 +23,41 @@ For each receipt:
 | `store` | Best-effort store from the header + `known_stores` |
 | `receiptTotal` | First grand-total amount after the items |
 | `totalDiscount` | Receipt-level `Totaal korting` (and similar) |
-| `validationPassed` | Item sum matches `receiptTotal` within €0.01 |
+| `validationPassed` | Item sum matches `receiptTotal` within €0.01, item count matches when printed, and no line needs manual review |
+| `items[].sourceBounds` | Normalized rect on the receipt photo for tap-to-highlight in Review |
+| `items[].needsManualReview` | Parser could not resolve price/qty confidently |
+| `expectedItemCount` | From `Aantal Artikel`-style lines when found |
+| `ocrImageWidth` / `ocrImageHeight` | Image size used to normalize bounds |
 
-If validation fails, Review shows: *Parsed totals do not match the receipt.*
+If validation fails, Review shows a banner asking you to check items before saving.
 
 ---
 
 ## Pipeline
 
+### Primary: spatial (ML Kit bounding boxes)
+
+Used automatically after scanning a receipt photo.
+
+1. **Extract elements** from ML Kit `RecognizedText` (blocks → lines → elements), keeping each element's pixel bounding box.
+2. **Cluster rows** by Y-center (threshold ≈ 1.2× median element height — see `spatial_parsing` in the JSON config).
+3. **Classify rows** with column logic: right ~25% of content width is the price column; pure `N X price` rows are quantity modifiers (checked first).
+4. **Build items** with a one-row lookahead buffer (Jumbo split layout + Kruidvat inline layout).
+5. **Validate** totals, printed item count, and manual-review flags.
+
+Implementation: `ReceiptOcr`, `ReceiptRowBuilder`, `ReceiptSpatialParser` in `lib/services/`.
+
+### Fallback: flat text
+
+`ReceiptParser.parseReceipt(String)` for tests and when only flattened OCR text exists.
+
 1. **Preprocess** each OCR line: trim, collapse spaces, drop empty lines.
 2. **Choose a layout**
    - **Sequential** (default): name, price, quantity and discount appear in
      reading order. Jumbo (printed), Lidl, Kruidvat, World Toko.
    - **Column OCR fallback:** ML Kit sometimes dumps every name, then every
      amount. Detected when there is a run of 4+ price-only lines *and* enough
-     name-like lines. Used for the Jumbo sample dump in tests.
+     name-like lines.
 3. **Classify** each line (first match wins) using the keyword JSON.
 4. **Build items** (pending name, then quantity/discount/price).
 5. **Validate** against the receipt total when one was found.

lib/models/line_item.dart

@@ -1,6 +1,8 @@
 /// A parsed receipt row shown on the review screen.
 library;
 
+import 'receipt_bounds.dart';
+
 class LineItem {
   LineItem({
     required this.id,
@@ -9,6 +11,8 @@ class LineItem {
     this.quantity,
     this.unitPrice,
     this.discount = 0,
+    this.sourceBounds,
+    this.needsManualReview = false,
   });
 
   final String id;
@@ -22,6 +26,12 @@ class LineItem {
   /// Negative amount when a discount was folded into [price].
   final double discount;
 
+  /// Region on the receipt photo (normalized 0–1) used when parsing this line.
+  final ReceiptBounds? sourceBounds;
+
+  /// True when the parser could not confidently resolve price/qty for this line.
+  final bool needsManualReview;
+
   bool get hasDiscount => discount != 0;
 
   /// List price before a folded discount. Equals [price] when there is none.
@@ -37,7 +47,10 @@ class LineItem {
     int? quantity,
     double? unitPrice,
     double? discount,
+    ReceiptBounds? sourceBounds,
+    bool? needsManualReview,
     bool clearQuantity = false,
+    bool clearSourceBounds = false,
   }) {
     return LineItem(
       id: id ?? this.id,
@@ -46,6 +59,8 @@ class LineItem {
       quantity: clearQuantity ? null : (quantity ?? this.quantity),
       unitPrice: clearQuantity ? null : (unitPrice ?? this.unitPrice),
       discount: discount ?? this.discount,
+      sourceBounds: clearSourceBounds ? null : (sourceBounds ?? this.sourceBounds),
+      needsManualReview: needsManualReview ?? this.needsManualReview,
     );
   }
 }

lib/models/ocr_element.dart

@@ -0,0 +1,61 @@
+/// One OCR text fragment with pixel bounding box on the receipt image.
+library;
+
+class OcrElement {
+  const OcrElement({
+    required this.text,
+    required this.left,
+    required this.top,
+    required this.right,
+    required this.bottom,
+  });
+
+  final String text;
+  final double left;
+  final double top;
+  final double right;
+  final double bottom;
+
+  double get centerX => (left + right) / 2;
+  double get centerY => (top + bottom) / 2;
+  double get height => (bottom - top).abs();
+  double get width => (right - left).abs();
+}
+
+/// One ML Kit text line with its word-level elements.
+class OcrLine {
+  const OcrLine({
+    required this.text,
+    required this.elements,
+    required this.left,
+    required this.top,
+    required this.right,
+    required this.bottom,
+  });
+
+  final String text;
+  final List<OcrElement> elements;
+  final double left;
+  final double top;
+  final double right;
+  final double bottom;
+
+  double get centerY => (top + bottom) / 2;
+}
+
+/// All positioned elements from one ML Kit recognition pass.
+class OcrDocument {
+  const OcrDocument({
+    required this.elements,
+    required this.lines,
+    required this.imageWidth,
+    required this.imageHeight,
+    required this.flattenedText,
+  });
+
+  final List<OcrElement> elements;
+  final List<OcrLine> lines;
+  final double imageWidth;
+  final double imageHeight;
+  final String flattenedText;
+}

lib/models/receipt_bounds.dart

@@ -0,0 +1,57 @@
+/// Normalized rectangle (0–1) on the receipt photo for review highlights.
+library;
+
+class ReceiptBounds {
+  const ReceiptBounds({
+    required this.left,
+    required this.top,
+    required this.right,
+    required this.bottom,
+  });
+
+  final double left;
+  final double top;
+  final double right;
+  final double bottom;
+
+  bool get isEmpty => right <= left || bottom <= top;
+
+  ReceiptBounds union(ReceiptBounds other) {
+    if (isEmpty) return other;
+    if (other.isEmpty) return this;
+    return ReceiptBounds(
+      left: left < other.left ? left : other.left,
+      top: top < other.top ? top : other.top,
+      right: right > other.right ? right : other.right,
+      bottom: bottom > other.bottom ? bottom : other.bottom,
+    );
+  }
+
+  static ReceiptBounds? merge(Iterable<ReceiptBounds> bounds) {
+    ReceiptBounds? merged;
+    for (final box in bounds) {
+      if (box.isEmpty) continue;
+      merged = merged == null ? box : merged.union(box);
+    }
+    return merged;
+  }
+
+  static ReceiptBounds fromPixelRect({
+    required double left,
+    required double top,
+    required double right,
+    required double bottom,
+    required double imageWidth,
+    required double imageHeight,
+  }) {
+    if (imageWidth <= 0 || imageHeight <= 0) {
+      return const ReceiptBounds(left: 0, top: 0, right: 0, bottom: 0);
+    }
+    return ReceiptBounds(
+      left: left / imageWidth,
+      top: top / imageHeight,
+      right: right / imageWidth,
+      bottom: bottom / imageHeight,
+    );
+  }
+}

lib/models/receipt_row.dart

@@ -0,0 +1,39 @@
+/// One visually reconstructed receipt row from clustered OCR elements.
+library;
+
+import 'ocr_element.dart';
+import 'receipt_bounds.dart';
+
+enum ReceiptRowKind {
+  skip,
+  quantityModifier,
+  nameOnly,
+  item,
+  discount,
+  grandTotal,
+  totalDiscount,
+}
+
+class ReceiptRow {
+  const ReceiptRow({
+    required this.kind,
+    required this.text,
+    required this.nameText,
+    this.price,
+    this.quantity,
+    this.unitPrice,
+    this.lineTotal,
+    this.elements = const [],
+    this.bounds,
+  });
+
+  final ReceiptRowKind kind;
+  final String text;
+  final String nameText;
+  final double? price;
+  final int? quantity;
+  final double? unitPrice;
+  final double? lineTotal;
+  final List<OcrElement> elements;
+  final ReceiptBounds? bounds;
+}

lib/products_screen.dart

@@ -263,7 +263,11 @@ class _ProductsScreenState extends State<ProductsScreen> {
         children: [
           Padding(
             padding: const EdgeInsets.fromLTRB(16, 4, 16, 4),
+            child: SizedBox(
+              width: double.infinity,
               child: SegmentedButton<ProductSort>(
+                expandedInsets: EdgeInsets.zero,
+                showSelectedIcon: false,
                 segments: const [
                   ButtonSegment(
                     value: ProductSort.name,
@@ -288,6 +292,7 @@ class _ProductsScreenState extends State<ProductsScreen> {
                 },
               ),
             ),
+          ),
           if (_nameIssues.isNotEmpty && !_editing)
             ProductNameConflictBanner(
               issues: _nameIssues,

lib/review_screen.dart

@@ -8,11 +8,13 @@ import 'package:flutter/material.dart';
 import 'models/line_item.dart';
 import 'services/app_settings.dart';
 import 'services/product_repository.dart';
+import 'services/receipt_capture.dart';
 import 'utils/dates.dart';
 import 'utils/money.dart';
 import 'utils/supermarkets.dart';
 import 'widgets/discounted_price.dart';
 import 'widgets/item_edit_sheet.dart';
+import 'widgets/receipt_highlight_overlay.dart';
 import 'widgets/store_tag.dart';
 import 'widgets/tag_editor.dart';
 
@@ -26,6 +28,8 @@ class ReviewScreen extends StatefulWidget {
     this.supermarketNames = kSupermarkets,
     this.needsReview = false,
     this.detectedStore,
+    this.ocrImageWidth,
+    this.ocrImageHeight,
   });
 
   final List<LineItem> items;
@@ -35,6 +39,8 @@ class ReviewScreen extends StatefulWidget {
   final List<String> supermarketNames;
   final bool needsReview;
   final String? detectedStore;
+  final double? ocrImageWidth;
+  final double? ocrImageHeight;
 
   @override
   State<ReviewScreen> createState() => _ReviewScreenState();
@@ -49,12 +55,21 @@ class _ReviewScreenState extends State<ReviewScreen> {
   final _tripName = TextEditingController();
   List<String> _tags = [];
   List<String> _tagSuggestions = [];
+  String? _highlightedItemId;
+  bool _showTripExtras = false;
+  late String _rawText;
+  String? _imagePath;
+  late bool _needsReview;
+  bool _addingReceipt = false;
 
   @override
   void initState() {
     super.initState();
     _items = List<LineItem>.from(widget.items);
     _shoppedAt = DateTime.now();
+    _rawText = widget.rawText;
+    _imagePath = widget.imagePath;
+    _needsReview = widget.needsReview;
     final detected = detectSupermarket(
       widget.rawText,
       names: widget.supermarketNames,
@@ -88,6 +103,57 @@ class _ReviewScreenState extends State<ReviewScreen> {
     return _supermarket;
   }
 
+  bool get _hasReceipt {
+    final path = _imagePath;
+    return path != null && path.isNotEmpty && File(path).existsSync();
+  }
+
+  Future<void> _addReceipt() async {
+    if (_saving || _addingReceipt) return;
+    setState(() => _addingReceipt = true);
+    try {
+      final captured = await captureAndParseReceipt(context);
+      if (captured == null || !mounted) return;
+
+      final keepExistingPhoto = _hasReceipt;
+      final merged = [
+        for (final item in captured.items)
+          keepExistingPhoto
+              ? item.copyWith(clearSourceBounds: true)
+              : item,
+      ];
+
+      setState(() {
+        _items.addAll(merged);
+        _needsReview = _needsReview || captured.needsReview;
+        if (_rawText.isEmpty) {
+          _rawText = captured.rawText;
+        } else if (captured.rawText.isNotEmpty) {
+          _rawText = '$_rawText\n\n---\n\n${captured.rawText}';
+        }
+        if (!keepExistingPhoto && captured.imagePath != null) {
+          _imagePath = captured.imagePath;
+        }
+        if (_supermarket == null && captured.detectedStore != null) {
+          _supermarket = captured.detectedStore;
+        }
+        _highlightedItemId = null;
+      });
+
+      ScaffoldMessenger.of(context).showSnackBar(
+        SnackBar(
+          content: Text(
+            merged.length == 1
+                ? 'Added 1 item from receipt.'
+                : 'Added ${merged.length} items from receipt.',
+          ),
+        ),
+      );
+    } finally {
+      if (mounted) setState(() => _addingReceipt = false);
+    }
+  }
+
   Future<void> _edit({LineItem? existing}) async {
     final result = await showItemEditSheet(context, item: existing);
     if (result == null || !mounted) return;
@@ -98,9 +164,20 @@ class _ReviewScreenState extends State<ReviewScreen> {
       } else {
         final index = _items.indexWhere((item) => item.id == existing.id);
         if (index >= 0) {
-          _items[index] = result;
+          _items[index] = result.copyWith(
+            sourceBounds: existing.sourceBounds,
+            needsManualReview: false,
+          );
         }
       }
+      _highlightedItemId = null;
+    });
+  }
+
+  void _toggleHighlight(LineItem item) {
+    if (item.sourceBounds == null || !_hasReceipt) return;
+    setState(() {
+      _highlightedItemId = _highlightedItemId == item.id ? null : item.id;
     });
   }
 
@@ -115,19 +192,92 @@ class _ReviewScreenState extends State<ReviewScreen> {
     setState(() => _shoppedAt = picked);
   }
 
-  Future<void> _openReceipt() async {
-    final path = widget.imagePath;
+  Future<void> _openReceiptPanel() async {
+    final path = _imagePath;
     if (path == null || path.isEmpty) return;
     final file = File(path);
     if (!file.existsSync()) return;
+
+    final highlighted = _highlightedItemId == null
+        ? null
+        : _items.cast<LineItem?>().firstWhere(
+            (item) => item?.id == _highlightedItemId,
+            orElse: () => null,
+          );
+
+    await showModalBottomSheet<void>(
+      context: context,
+      isScrollControlled: true,
+      showDragHandle: true,
+      builder: (context) {
+        return SafeArea(
+          child: Padding(
+            padding: const EdgeInsets.fromLTRB(16, 0, 16, 16),
+            child: Column(
+              mainAxisSize: MainAxisSize.min,
+              crossAxisAlignment: CrossAxisAlignment.stretch,
+              children: [
+                Text('Receipt', style: Theme.of(context).textTheme.titleMedium),
+                const SizedBox(height: 12),
+                if (highlighted?.sourceBounds != null)
+                  ReceiptHighlightOverlay(
+                    imagePath: path,
+                    bounds: highlighted!.sourceBounds!,
+                    maxHeight: 360,
+                  )
+                else
+                  GestureDetector(
+                    onTap: () async {
                       await showDialog<void>(
                         context: context,
-      builder: (context) {
-        return Dialog(
+                        builder: (ctx) => Dialog(
                           insetPadding: const EdgeInsets.all(16),
                           child: InteractiveViewer(
                             child: Image.file(file, fit: BoxFit.contain),
                           ),
+                        ),
+                      );
+                    },
+                    child: ClipRRect(
+                      borderRadius: BorderRadius.circular(12),
+                      child: Image.file(file, fit: BoxFit.contain, height: 360),
+                    ),
+                  ),
+              ],
+            ),
+          ),
+        );
+      },
+    );
+  }
+
+  Future<void> _openOcrPanel() async {
+    if (_rawText.isEmpty) return;
+    await showModalBottomSheet<void>(
+      context: context,
+      isScrollControlled: true,
+      showDragHandle: true,
+      builder: (context) {
+        return SafeArea(
+          child: Padding(
+            padding: const EdgeInsets.fromLTRB(16, 0, 16, 16),
+            child: Column(
+              mainAxisSize: MainAxisSize.min,
+              crossAxisAlignment: CrossAxisAlignment.stretch,
+              children: [
+                Text('Raw OCR text', style: Theme.of(context).textTheme.titleMedium),
+                const SizedBox(height: 12),
+                ConstrainedBox(
+                  constraints: BoxConstraints(
+                    maxHeight: MediaQuery.sizeOf(context).height * 0.55,
+                  ),
+                  child: SingleChildScrollView(
+                    child: SelectableText(_rawText),
+                  ),
+                ),
+              ],
+            ),
+          ),
         );
       },
     );
@@ -153,7 +303,7 @@ class _ReviewScreenState extends State<ReviewScreen> {
         supermarket: supermarket,
         shoppedAt: _shoppedAt,
         items: _items,
-        receiptImagePath: widget.imagePath,
+        receiptImagePath: _imagePath,
         name: _tripName.text,
         tags: _tags,
       );
@@ -180,15 +330,19 @@ class _ReviewScreenState extends State<ReviewScreen> {
     if (_supermarket != null && !names.contains(_supermarket)) {
       names.add(_supermarket!);
     }
-    final receiptPath = widget.imagePath;
-    final hasReceipt = receiptPath != null &&
-        receiptPath.isNotEmpty &&
-        File(receiptPath).existsSync();
+    final flaggedCount =
+        _items.where((item) => item.needsManualReview).length;
+    final reviewMessage = flaggedCount > 0
+        ? 'Some lines could not be parsed confidently — '
+            '${flaggedCount == 1 ? '1 item is' : '$flaggedCount items are'} '
+            'marked below. Check them against the receipt before saving.'
+        : 'Item count or totals do not match the receipt. '
+            'Check the items below before saving.';
 
     return Scaffold(
       appBar: AppBar(
         title: Text(
-          widget.rawText.isEmpty && widget.imagePath == null
+          _rawText.isEmpty && _imagePath == null
               ? 'New trip'
               : 'Review items',
         ),
@@ -200,14 +354,14 @@ class _ReviewScreenState extends State<ReviewScreen> {
             child: Column(
               crossAxisAlignment: CrossAxisAlignment.stretch,
               children: [
-                if (widget.needsReview) ...[
+                if (_needsReview) ...[
                   Material(
                     color: theme.colorScheme.errorContainer,
                     borderRadius: BorderRadius.circular(12),
                     child: Padding(
                       padding: const EdgeInsets.all(12),
                       child: Text(
-                        'Parsed totals do not match the receipt. Check the items before saving.',
+                        reviewMessage,
                         style: theme.textTheme.bodyMedium?.copyWith(
                           color: theme.colorScheme.onErrorContainer,
                         ),
@@ -248,23 +402,33 @@ class _ReviewScreenState extends State<ReviewScreen> {
                 const SizedBox(height: 8),
                 ListTile(
                   contentPadding: EdgeInsets.zero,
-                  leading: const Icon(Icons.calendar_today_outlined),
+                  leading: Row(
+                    mainAxisSize: MainAxisSize.min,
+                    children: [
+                      IconButton(
+                        icon: Icon(
+                          _showTripExtras
+                              ? Icons.expand_less
+                              : Icons.edit_note_outlined,
+                        ),
+                        tooltip: _showTripExtras
+                            ? 'Hide trip name & tags'
+                            : 'Trip name & tags',
+                        onPressed: _saving
+                            ? null
+                            : () => setState(
+                                () => _showTripExtras = !_showTripExtras,
+                              ),
+                      ),
+                      const Icon(Icons.calendar_today_outlined),
+                    ],
+                  ),
                   title: Text(formatDate(_shoppedAt)),
                   subtitle: const Text('Shopping date'),
                   onTap: _saving ? null : _pickDate,
                 ),
-              ],
-            ),
-          ),
-          Expanded(
-            child: CustomScrollView(
-              slivers: [
-                SliverPadding(
-                  padding: const EdgeInsets.fromLTRB(16, 0, 16, 8),
-                  sliver: SliverToBoxAdapter(
-                    child: Column(
-                      crossAxisAlignment: CrossAxisAlignment.stretch,
-                      children: [
+                if (_showTripExtras) ...[
+                  const SizedBox(height: 8),
                   TextField(
                     controller: _tripName,
                     enabled: !_saving,
@@ -281,10 +445,14 @@ class _ReviewScreenState extends State<ReviewScreen> {
                     enabled: !_saving,
                     onChanged: (tags) => setState(() => _tags = tags),
                   ),
+                  const SizedBox(height: 8),
+                ],
               ],
             ),
           ),
-                ),
+          Expanded(
+            child: CustomScrollView(
+              slivers: [
                 if (_items.isEmpty)
                   SliverFillRemaining(
                     hasScrollBody: false,
@@ -304,6 +472,8 @@ class _ReviewScreenState extends State<ReviewScreen> {
                       separatorBuilder: (_, _) => const SizedBox(height: 4),
                       itemBuilder: (context, index) {
                         final item = _items[index];
+                        final flagged = item.needsManualReview;
+                        final onReceipt = _highlightedItemId == item.id;
                         return Dismissible(
                           key: ValueKey(item.id),
                           direction: DismissDirection.endToStart,
@@ -325,8 +495,44 @@ class _ReviewScreenState extends State<ReviewScreen> {
                             });
                           },
                           child: ListTile(
+                            shape: RoundedRectangleBorder(
+                              borderRadius: BorderRadius.circular(12),
+                              side: flagged
+                                  ? BorderSide(
+                                      color: theme.colorScheme.error
+                                          .withValues(alpha: 0.55),
+                                    )
+                                  : BorderSide.none,
+                            ),
+                            tileColor: flagged
+                                ? theme.colorScheme.errorContainer
+                                    .withValues(alpha: 0.35)
+                                : onReceipt
+                                    ? theme.colorScheme.primaryContainer
+                                        .withValues(alpha: 0.35)
+                                    : null,
+                            leading: item.sourceBounds != null && _hasReceipt
+                                ? IconButton(
+                                    icon: Icon(
+                                      onReceipt
+                                          ? Icons.visibility
+                                          : Icons.visibility_outlined,
+                                      size: 20,
+                                    ),
+                                    tooltip: 'Show on receipt',
+                                    onPressed: _saving
+                                        ? null
+                                        : () => _toggleHighlight(item),
+                                  )
+                                : flagged
+                                    ? Icon(
+                                        Icons.flag_outlined,
+                                        color: theme.colorScheme.error,
+                                        size: 20,
+                                      )
+                                    : null,
                             title: Text(item.name),
-                            subtitle: _itemSubtitle(item),
+                            subtitle: _itemSubtitle(item, flagged: flagged),
                             trailing: DiscountedPrice(item: item),
                             onTap: _saving ? null : () => _edit(existing: item),
                           ),
@@ -337,54 +543,76 @@ class _ReviewScreenState extends State<ReviewScreen> {
               ],
             ),
           ),
-          if (hasReceipt)
-            ExpansionTile(
-              title: const Text('See receipt'),
-              children: [
+          if (_hasReceipt || _rawText.isNotEmpty)
             Padding(
-                  padding: const EdgeInsets.fromLTRB(16, 0, 16, 16),
-                  child: GestureDetector(
-                    onTap: _openReceipt,
-                    child: ClipRRect(
-                      borderRadius: BorderRadius.circular(12),
-                      child: Image.file(
-                        File(receiptPath),
-                        fit: BoxFit.contain,
-                        height: 220,
-                        width: double.infinity,
-                      ),
-                    ),
-                  ),
-                ),
-              ],
-            ),
-          if (widget.rawText.isNotEmpty)
-            ExpansionTile(
-              title: const Text('Raw OCR text'),
+              padding: const EdgeInsets.fromLTRB(16, 0, 16, 4),
+              child: Row(
                 children: [
-                ConstrainedBox(
-                  constraints: const BoxConstraints(maxHeight: 180),
-                  child: SingleChildScrollView(
-                    padding: const EdgeInsets.fromLTRB(16, 0, 16, 16),
-                    child: SelectableText(widget.rawText),
+                  if (_hasReceipt)
+                    Expanded(
+                      child: OutlinedButton.icon(
+                        onPressed: _saving || _addingReceipt
+                            ? null
+                            : _openReceiptPanel,
+                        icon: const Icon(Icons.receipt_long_outlined, size: 18),
+                        label: const Text('Receipt'),
+                      ),
+                    ),
+                  if (_hasReceipt && _rawText.isNotEmpty)
+                    const SizedBox(width: 8),
+                  if (_rawText.isNotEmpty)
+                    Expanded(
+                      child: OutlinedButton.icon(
+                        onPressed: _saving || _addingReceipt
+                            ? null
+                            : _openOcrPanel,
+                        icon: const Icon(Icons.text_snippet_outlined, size: 18),
+                        label: const Text('OCR text'),
                       ),
                     ),
                 ],
               ),
+            ),
           SafeArea(
             child: Padding(
               padding: const EdgeInsets.fromLTRB(16, 8, 16, 16),
               child: Column(
                 crossAxisAlignment: CrossAxisAlignment.stretch,
                 children: [
-                  OutlinedButton.icon(
-                    onPressed: _saving ? null : () => _edit(),
+                  Row(
+                    children: [
+                      Expanded(
+                        child: OutlinedButton.icon(
+                          onPressed: _saving || _addingReceipt
+                              ? null
+                              : () => _edit(),
                           icon: const Icon(Icons.add),
                           label: const Text('Add item'),
                         ),
+                      ),
+                      const SizedBox(width: 8),
+                      Expanded(
+                        child: OutlinedButton.icon(
+                          onPressed: _saving || _addingReceipt
+                              ? null
+                              : _addReceipt,
+                          icon: _addingReceipt
+                              ? const SizedBox(
+                                  width: 16,
+                                  height: 16,
+                                  child: CircularProgressIndicator(
+                                    strokeWidth: 2,
+                                  ),
+                                )
+                              : const Icon(Icons.receipt_long_outlined),
+                          label: const Text('Add receipt'),
+                        ),
+                      ),
+                    ],
+                  ),
                   const SizedBox(height: 8),
                   FilledButton(
-                    onPressed: _saving ? null : _confirm,
+                    onPressed: _saving || _addingReceipt ? null : _confirm,
                     child: Text(
                       _saving ? 'Saving…' : 'Save trip · ${formatEuro(total)}',
                     ),
@@ -398,8 +626,13 @@ class _ReviewScreenState extends State<ReviewScreen> {
     );
   }
 
-  Widget? _itemSubtitle(LineItem item) {
-    if (item.quantity == null) return null;
-    return Text('${item.quantity} × ${formatEuro(item.unitPrice ?? 0)}');
+  Widget? _itemSubtitle(LineItem item, {bool flagged = false}) {
+    final parts = <String>[];
+    if (flagged) parts.add('Needs review');
+    if (item.quantity != null) {
+      parts.add('${item.quantity} × ${formatEuro(item.unitPrice ?? 0)}');
+    }
+    if (parts.isEmpty) return null;
+    return Text(parts.join(' · '));
   }
 }

lib/scan_screen.dart

@@ -2,6 +2,7 @@
 library;
 
 import 'dart:io';
+import 'dart:ui' as ui;
 
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
@@ -102,12 +103,22 @@ class _ScanScreenState extends State<ScanScreen> {
     });
 
     final recognizer = TextRecognizer(script: TextRecognitionScript.latin);
+    RecognizedText? recognized;
+    double imageWidth = 0;
+    double imageHeight = 0;
     try {
+      final bytes = await File(imagePath).readAsBytes();
+      final codec = await ui.instantiateImageCodec(bytes);
+      final frame = await codec.getNextFrame();
+      imageWidth = frame.image.width.toDouble();
+      imageHeight = frame.image.height.toDouble();
+      frame.image.dispose();
+
       final inputImage = InputImage.fromFilePath(imagePath);
-      final recognized = await recognizer.processImage(inputImage);
+      recognized = await recognizer.processImage(inputImage);
       if (!mounted) return;
       setState(() {
-        _extractedText = recognized.text.trim();
+        _extractedText = recognized!.text.trim();
         if (_extractedText.isEmpty) {
           _error = 'No text found in this image.';
         }
@@ -131,8 +142,14 @@ class _ScanScreenState extends State<ScanScreen> {
       }
     }
 
-    if (mounted && _extractedText.isNotEmpty) {
-      await _openReview(_extractedText);
+    if (mounted && _extractedText.isNotEmpty && recognized != null) {
+      await _openReview(
+        _extractedText,
+        imagePath: imagePath,
+        recognized: recognized,
+        imageWidth: imageWidth,
+        imageHeight: imageHeight,
+      );
     }
   }
 
@@ -150,12 +167,23 @@ class _ScanScreenState extends State<ScanScreen> {
     String rawText, {
     List<LineItem>? items,
     String? imagePath,
+    RecognizedText? recognized,
+    double? imageWidth,
+    double? imageHeight,
   }) async {
     final parsedItems = items;
     ReceiptParseResult? parsed;
     if (parsedItems == null) {
+      if (recognized != null && imageWidth != null && imageHeight != null) {
+        parsed = ReceiptParser.parseRecognizedText(
+          recognized,
+          imageWidth: imageWidth,
+          imageHeight: imageHeight,
+        );
+      } else {
         parsed = ReceiptParser.parseReceipt(rawText);
       }
+    }
     if (!mounted) return;
     final names =
         SettingsScope.maybeOf(context)?.supermarkets.map((s) => s.name) ??
@@ -170,6 +198,8 @@ class _ScanScreenState extends State<ScanScreen> {
           supermarketNames: names.toList(),
           needsReview: parsed != null && !parsed.validationPassed,
           detectedStore: parsed?.store,
+          ocrImageWidth: parsed?.ocrImageWidth,
+          ocrImageHeight: parsed?.ocrImageHeight,
         ),
       ),
     );

lib/services/receipt_capture.dart

@@ -0,0 +1,188 @@
+/// Shared pick → crop → OCR → parse flow for adding a receipt to a trip.
+library;
+
+import 'dart:io';
+import 'dart:ui' as ui;
+
+import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
+import 'package:google_mlkit_text_recognition/google_mlkit_text_recognition.dart';
+import 'package:image_picker/image_picker.dart';
+
+import '../crop_receipt_screen.dart';
+import '../models/line_item.dart';
+import 'receipt_parser.dart';
+
+class CapturedReceiptParse {
+  const CapturedReceiptParse({
+    required this.items,
+    required this.rawText,
+    this.imagePath,
+    this.needsReview = false,
+    this.detectedStore,
+  });
+
+  final List<LineItem> items;
+  final String rawText;
+  final String? imagePath;
+  final bool needsReview;
+  final String? detectedStore;
+}
+
+/// Asks camera vs gallery, crops, runs OCR, and returns parsed items.
+///
+/// Returns null if the user cancels at any step.
+Future<CapturedReceiptParse?> captureAndParseReceipt(
+  BuildContext context, {
+  ImagePicker? picker,
+}) async {
+  final source = await showModalBottomSheet<ImageSource>(
+    context: context,
+    showDragHandle: true,
+    builder: (context) {
+      return SafeArea(
+        child: Column(
+          mainAxisSize: MainAxisSize.min,
+          children: [
+            ListTile(
+              leading: const Icon(Icons.photo_camera_outlined),
+              title: const Text('Take photo'),
+              onTap: () => Navigator.pop(context, ImageSource.camera),
+            ),
+            ListTile(
+              leading: const Icon(Icons.photo_library_outlined),
+              title: const Text('Pick from gallery'),
+              onTap: () => Navigator.pop(context, ImageSource.gallery),
+            ),
+          ],
+        ),
+      );
+    },
+  );
+  if (source == null || !context.mounted) return null;
+
+  final imagePicker = picker ?? ImagePicker();
+  final file = await imagePicker.pickImage(source: source, imageQuality: 95);
+  if (file == null || !context.mounted) return null;
+
+  final croppedPath = await Navigator.of(context).push<String>(
+    MaterialPageRoute(
+      fullscreenDialog: true,
+      builder: (_) => CropReceiptScreen(imagePath: file.path),
+    ),
+  );
+  if (croppedPath == null || !context.mounted) return null;
+
+  return _runOcrAndParse(context, croppedPath);
+}
+
+Future<CapturedReceiptParse?> _runOcrAndParse(
+  BuildContext context,
+  String imagePath,
+) async {
+  showDialog<void>(
+    context: context,
+    barrierDismissible: false,
+    builder: (context) {
+      return const PopScope(
+        canPop: false,
+        child: Center(
+          child: Card(
+            child: Padding(
+              padding: EdgeInsets.all(24),
+              child: Column(
+                mainAxisSize: MainAxisSize.min,
+                children: [
+                  CircularProgressIndicator(),
+                  SizedBox(height: 16),
+                  Text('Reading receipt…'),
+                ],
+              ),
+            ),
+          ),
+        ),
+      );
+    },
+  );
+
+  final recognizer = TextRecognizer(script: TextRecognitionScript.latin);
+  try {
+    final bytes = await File(imagePath).readAsBytes();
+    final codec = await ui.instantiateImageCodec(bytes);
+    final frame = await codec.getNextFrame();
+    final imageWidth = frame.image.width.toDouble();
+    final imageHeight = frame.image.height.toDouble();
+    frame.image.dispose();
+
+    final recognized = await recognizer.processImage(
+      InputImage.fromFilePath(imagePath),
+    );
+    final rawText = recognized.text.trim();
+    if (rawText.isEmpty) {
+      if (context.mounted) {
+        Navigator.of(context, rootNavigator: true).pop();
+        ScaffoldMessenger.of(context).showSnackBar(
+          const SnackBar(content: Text('No text found in this image.')),
+        );
+      }
+      return null;
+    }
+
+    final parsed = ReceiptParser.parseRecognizedText(
+      recognized,
+      imageWidth: imageWidth,
+      imageHeight: imageHeight,
+    );
+
+    if (context.mounted) {
+      Navigator.of(context, rootNavigator: true).pop();
+    }
+
+    if (parsed.items.isEmpty) {
+      if (context.mounted) {
+        ScaffoldMessenger.of(context).showSnackBar(
+          const SnackBar(content: Text('No products found on this receipt.')),
+        );
+      }
+      return null;
+    }
+
+    // Fresh ids so merged trips never collide with existing item keys.
+    final stamp = DateTime.now().microsecondsSinceEpoch;
+    final items = [
+      for (var i = 0; i < parsed.items.length; i++)
+        parsed.items[i].copyWith(id: 'merged-$stamp-$i'),
+    ];
+
+    return CapturedReceiptParse(
+      items: items,
+      rawText: rawText,
+      imagePath: imagePath,
+      needsReview: !parsed.validationPassed,
+      detectedStore: parsed.store,
+    );
+  } on PlatformException catch (error) {
+    if (context.mounted) {
+      Navigator.of(context, rootNavigator: true).pop();
+      ScaffoldMessenger.of(context).showSnackBar(
+        SnackBar(
+          content: Text(
+            'Could not read text from this image.'
+            '${error.message == null || error.message!.isEmpty ? '' : '\n${error.message}'}',
+          ),
+        ),
+      );
+    }
+    return null;
+  } catch (error) {
+    if (context.mounted) {
+      Navigator.of(context, rootNavigator: true).pop();
+      ScaffoldMessenger.of(context).showSnackBar(
+        SnackBar(content: Text('Could not read text from this image.\n$error')),
+      );
+    }
+    return null;
+  } finally {
+    await recognizer.close();
+  }
+}

lib/services/receipt_ocr.dart

@@ -0,0 +1,81 @@
+/// Extract positioned OCR elements from ML Kit structured output.
+library;
+
+import 'package:google_mlkit_text_recognition/google_mlkit_text_recognition.dart';
+
+import '../models/ocr_element.dart';
+
+class ReceiptOcr {
+  ReceiptOcr._();
+
+  /// Reads blocks → lines → elements. Falls back to line-level boxes when a
+  /// line has no element children.
+  static OcrDocument fromRecognizedText(
+    RecognizedText recognized, {
+    required double imageWidth,
+    required double imageHeight,
+  }) {
+    final elements = <OcrElement>[];
+    final lines = <OcrLine>[];
+    var maxRight = 0.0;
+    var maxBottom = 0.0;
+
+    for (final block in recognized.blocks) {
+      for (final line in block.lines) {
+        final lineElements = <OcrElement>[];
+        if (line.elements.isNotEmpty) {
+          for (final element in line.elements) {
+            final box = element.boundingBox;
+            lineElements.add(
+              OcrElement(
+                text: element.text,
+                left: box.left,
+                top: box.top,
+                right: box.right,
+                bottom: box.bottom,
+              ),
+            );
+            if (box.right > maxRight) maxRight = box.right;
+            if (box.bottom > maxBottom) maxBottom = box.bottom;
+          }
+        } else {
+          final box = line.boundingBox;
+          lineElements.add(
+            OcrElement(
+              text: line.text,
+              left: box.left,
+              top: box.top,
+              right: box.right,
+              bottom: box.bottom,
+            ),
+          );
+          if (box.right > maxRight) maxRight = box.right;
+          if (box.bottom > maxBottom) maxBottom = box.bottom;
+        }
+        elements.addAll(lineElements);
+        final box = line.boundingBox;
+        lines.add(
+          OcrLine(
+            text: line.text,
+            elements: lineElements,
+            left: box.left,
+            top: box.top,
+            right: box.right,
+            bottom: box.bottom,
+          ),
+        );
+      }
+    }
+
+    final width = imageWidth > 0 ? imageWidth : maxRight;
+    final height = imageHeight > 0 ? imageHeight : maxBottom;
+
+    return OcrDocument(
+      elements: elements,
+      lines: lines,
+      imageWidth: width,
+      imageHeight: height,
+      flattenedText: recognized.text.trim(),
+    );
+  }
+}

lib/services/receipt_parse_config.dart

@@ -25,6 +25,8 @@ class ReceiptParseConfig {
     required this.trailingCategoryLetter,
     required this.noiseKeywords,
     required this.itemCountKeywords,
+    this.rowClusterHeightFactor = 0.55,
+    this.priceColumnWidthFraction = 0.25,
   });
 
   final List<String> knownStores;
@@ -44,6 +46,8 @@ class ReceiptParseConfig {
   final RegExp trailingCategoryLetter;
   final List<String> noiseKeywords;
   final List<String> itemCountKeywords;
+  final double rowClusterHeightFactor;
+  final double priceColumnWidthFraction;
 
   factory ReceiptParseConfig.fromJson(Map<String, dynamic> json) {
     List<String> list(String section, [String key = 'list']) {
@@ -99,27 +103,48 @@ class ReceiptParseConfig {
       ),
       noiseKeywords: list('noise_footer_keywords'),
       itemCountKeywords: list('line_item_count_keywords'),
+      rowClusterHeightFactor: _spatialDouble(
+        json,
+        'row_cluster_height_factor',
+        fallback: 0.55,
+      ),
+      priceColumnWidthFraction: _spatialDouble(
+        json,
+        'price_column_width_fraction',
+        fallback: 0.25,
+      ),
     );
   }
 
+  static double _spatialDouble(
+    Map<String, dynamic> json,
+    String key, {
+    required double fallback,
+  }) {
+    final spatial = json['spatial_parsing'];
+    if (spatial is! Map) return fallback;
+    final value = spatial[key];
+    if (value is num && value > 0) return value.toDouble();
+    return fallback;
+  }
+
   static const assetPath = 'receipt-parsing-keywords.json';
 
   /// True if [line] matches a config keyword.
   ///
-  /// Short tokens (3 characters or fewer) use a word boundary so `PIN` does
-  /// not match `SPINAZIE`. Longer tokens use a case-insensitive substring,
-  /// and a letter-only compact form so OCR splits like `Betaal d:` still
-  /// match `BETAALD`.
+  /// Always uses word boundaries so `CHIP` does not match `CHIPS` and `PIN`
+  /// does not match `SPINAZIE`. A letter-only compact form is a fallback for
+  /// OCR splits like `Betaal d:` → `BETAALD` (only for keywords of length ≥ 5,
+  /// so short tokens like `CHIP` cannot match inside longer product words).
   bool matchesKeyword(String line, String keyword) {
     final upper = line.toUpperCase();
     final key = keyword.toUpperCase();
-    if (key.length <= 3) {
-      return RegExp('\\b${RegExp.escape(key)}\\b').hasMatch(upper);
+    if (RegExp('\\b${RegExp.escape(key)}\\b').hasMatch(upper)) {
+      return true;
     }
-    if (upper.contains(key)) return true;
     final compactLine = upper.replaceAll(RegExp(r'[^A-Z0-9]'), '');
     final compactKey = key.replaceAll(RegExp(r'[^A-Z0-9]'), '');
-    return compactKey.length >= 4 && compactLine.contains(compactKey);
+    return compactKey.length >= 5 && compactLine.contains(compactKey);
   }
 
   bool isStandaloneKeywordLine(String line, List<String> keywords) {

lib/services/receipt_parser.dart

@@ -1,590 +1,86 @@
-/// Turns raw OCR text into [LineItem]s using receipt-parsing-keywords.json.
+/// Receipt parsing entry point: spatial OCR pipeline with text fallback.
 library;
 
+import 'package:google_mlkit_text_recognition/google_mlkit_text_recognition.dart';
+
 import '../models/line_item.dart';
-import '../utils/money.dart';
+import '../models/ocr_element.dart';
+import 'receipt_ocr.dart';
 import 'receipt_parse_config.dart';
-
 export 'receipt_parse_config.dart' show loadReceiptParseConfig;
-
-/// Result of a full receipt parse, including totals used for review.
-class ReceiptParseResult {
-  const ReceiptParseResult({
-    required this.items,
-    this.store,
-    this.receiptTotal,
-    this.totalDiscount = 0,
-    this.validationPassed = true,
-  });
-
-  final List<LineItem> items;
-  final String? store;
-  final double? receiptTotal;
-  final double totalDiscount;
-  final bool validationPassed;
-}
-
-class _Qty {
-  const _Qty({required this.count, required this.unitPrice, this.total});
-
-  final int count;
-  final double unitPrice;
-  final double? total;
-
-  double get lineTotal => total ?? roundMoney(count * unitPrice);
-}
-
-class _Pending {
-  _Pending({
-    required this.name,
-    this.unitPrice,
-    this.quantity = 1,
-    this.lineTotal,
-  });
-
-  String name;
-  double? unitPrice;
-  int quantity;
-  double? lineTotal;
-  double discount = 0;
-}
-
-enum _Kind {
-  skip,
-  item,
-  nameOnly,
-  quantity,
-  discount,
-  grandTotal,
-  totalDiscount,
-  priceOnly,
-}
-
-class _Line {
-  const _Line({
-    required this.kind,
-    required this.raw,
-    this.name,
-    this.amount,
-    this.qty,
-  });
-
-  final _Kind kind;
-  final String raw;
-  final String? name;
-  final double? amount;
-  final _Qty? qty;
-}
-
-final _postalPattern = RegExp(r'\d{4}\s*[A-Za-z]{2}\b');
-final _phonePattern = RegExp(r'^\d{8,}$');
-final _streetPattern = RegExp(r"^[A-Za-z. ''-]+\s+\d{1,4}[A-Za-z]?$");
-final _urlPattern = RegExp(r'www\.|\.com|\.nl', caseSensitive: false);
-
-/// Jumbo-style OCR often adds a line total after `N X unit`.
-final _qtyWithTotal = RegExp(
-  r'^\s*(\d+)\s*[xX×]\s*(-?\d+[,.]\d{2})(?:\s+(?:PER\s+STUK|PER\s+KG|ST\.?|STUKS?))?(?:\s+(-?\d+[,.]\d{2}))?\s*$',
-  caseSensitive: false,
-);
+export 'receipt_text_parser.dart' show ReceiptParseResult;
+import 'receipt_spatial_parser.dart';
+import 'receipt_text_parser.dart';
 
 class ReceiptParser {
   ReceiptParser._();
 
-  static int _nextId = 0;
-
-  static String _id() => 'item-${++_nextId}';
-
   static Future<void> loadConfig() => loadReceiptParseConfig();
 
   static List<LineItem> parse(String rawText) => parseReceipt(rawText).items;
 
-  static ReceiptParseResult parseReceipt(String rawText) {
-    final config = receiptParseConfig;
-    final lines = rawText
-        .split('\n')
-        .map(_preprocess)
-        .where((line) => line.isNotEmpty)
-        .toList();
+  /// Fallback when only flattened OCR text is available (tests, re-parse).
+  static ReceiptParseResult parseReceipt(String rawText) =>
+      ReceiptTextParser.parseReceipt(rawText);
 
-    if (_looksLikeColumnOcr(lines, config)) {
-      return _parseColumns(lines, config, rawText);
-    }
-    return _parseSequential(lines, config, rawText);
-  }
+  /// Primary path: positioned ML Kit elements → row clustering → lookahead.
+  static ReceiptParseResult parseReceiptFromOcr(OcrDocument document) =>
+      _parseDocument(document);
 
-  static String _preprocess(String line) =>
-      line.trim().replaceAll(RegExp(r'\s+'), ' ');
-
-  static String _stripTax(String line, ReceiptParseConfig config) {
-    return line.replaceFirst(config.trailingCategoryLetter, '').trim();
-  }
-
-  static bool _looksLikeColumnOcr(
-    List<String> lines,
-    ReceiptParseConfig config,
-  ) {
-    var run = 0;
-    var maxRun = 0;
-    var prices = 0;
-    var names = 0;
-    for (final line in lines) {
-      final stripped = _stripTax(line, config);
-      if (isPriceOnly(stripped)) {
-        prices++;
-        run++;
-        if (run > maxRun) maxRun = run;
-      } else {
-        run = 0;
-        if (_parseQty(stripped, config) == null &&
-            !_isIgnorable(stripped, config)) {
-          names++;
-        }
-      }
-    }
-    return maxRun >= 4 && prices >= 4 && names >= 4;
-  }
-
-  static ReceiptParseResult _parseSequential(
-    List<String> lines,
-    ReceiptParseConfig config,
-    String rawText,
-  ) {
-    final items = <LineItem>[];
-    _Pending? pending;
-    var receiptTotal = _readAmountAfterKeyword(
-      lines,
-      config,
-      config.grandTotalKeywords,
-      skipIf: (line) => config.matchesAny(line, [
-        ...config.totalDiscountKeywords,
-        ...config.taxInclusiveTotalKeywords,
-        ...config.subtotalKeywords,
-      ]),
-    );
-    var totalDiscount = 0.0;
-    var stop = false;
-
-    void flush() {
-      final current = pending;
-      pending = null;
-      if (current == null) return;
-      final total = current.lineTotal ?? current.unitPrice;
-      if (total == null) return;
-      items.add(_toItem(current, total));
-    }
-
-    for (var i = 0; i < lines.length && !stop; i++) {
-      final classified = _classify(lines[i], config);
-      switch (classified.kind) {
-        case _Kind.skip:
-          continue;
-        case _Kind.item:
-          flush();
-          pending = _Pending(
-            name: classified.name!,
-            unitPrice: classified.amount,
-            quantity: classified.qty?.count ?? 1,
-            lineTotal: classified.qty == null
-                ? classified.amount
-                : classified.qty!.lineTotal,
-          );
-          if (classified.qty != null) {
-            pending!.unitPrice = classified.qty!.unitPrice;
-          }
-        case _Kind.nameOnly:
-          flush();
-          pending = _Pending(name: classified.name ?? classified.raw);
-        case _Kind.quantity:
-          final qty = classified.qty!;
-          if (pending != null) {
-            pending!
-              ..quantity = qty.count
-              ..unitPrice = qty.unitPrice
-              ..lineTotal = qty.lineTotal;
-          }
-        case _Kind.discount:
-          var amount = classified.amount;
-          if (amount == null && i + 1 < lines.length) {
-            amount = tryParsePrice(_stripTax(lines[i + 1], config));
-            if (amount != null) i++;
-          }
-          if (amount == null) continue;
-          if (amount > 0) amount = -amount;
-          if (pending != null) {
-            pending!.discount += amount;
-            pending!.lineTotal = roundMoney(
-              (pending!.lineTotal ?? pending!.unitPrice ?? 0) + amount,
-            );
-          } else {
-            totalDiscount += amount;
-          }
-        case _Kind.totalDiscount:
-          var amount = classified.amount;
-          if (amount == null && i + 1 < lines.length) {
-            amount = tryParsePrice(_stripTax(lines[i + 1], config));
-            if (amount != null) i++;
-          }
-          if (amount != null) {
-            totalDiscount += amount > 0 ? -amount : amount;
-          }
-        case _Kind.grandTotal:
-          flush();
-          if (classified.amount != null) {
-            receiptTotal = classified.amount;
-            stop = true;
-          }
-        case _Kind.priceOnly:
-          final amount = classified.amount!;
-          if (amount < 0 && pending != null) {
-            pending!.discount += amount;
-            pending!.lineTotal = roundMoney(
-              (pending!.lineTotal ?? pending!.unitPrice ?? 0) + amount,
-            );
-          }
-      }
-    }
-    flush();
-
-    return _result(
-      items: items,
-      rawText: rawText,
-      receiptTotal: receiptTotal,
-      totalDiscount: totalDiscount,
-    );
-  }
-
-  static ReceiptParseResult _parseColumns(
-    List<String> lines,
-    ReceiptParseConfig config,
-    String rawText,
-  ) {
-    final names = <({String name, int? quantity, double? unitPrice})>[];
-    final prices = <double>[];
-    final discountSlots = <int>[];
-    final discounts = <double>[];
-
-    for (final raw in lines) {
-      final line = _stripTax(raw, config);
-      if (isPriceOnly(line)) {
-        final price = tryParsePrice(line);
-        if (price == null) continue;
-        if (price < 0) {
-          discounts.add(price);
-        } else {
-          prices.add(price);
-        }
-        continue;
-      }
-      if (_isIgnorable(line, config)) continue;
-      if (config.matchesAny(line, [
-        ...config.grandTotalKeywords,
-        ...config.subtotalKeywords,
-        ...config.taxInclusiveTotalKeywords,
-        ...config.totalDiscountKeywords,
-      ])) {
-        continue;
-      }
-
-      final qty = _parseQty(line, config);
-      if (qty != null) {
-        if (names.isNotEmpty) {
-          final last = names.removeLast();
-          names.add((
-            name: last.name,
-            quantity: qty.count,
-            unitPrice: qty.unitPrice,
-          ));
-        }
-        continue;
-      }
-
-      if (config.matchesAny(line, config.discountKeywords)) {
-        if (names.isNotEmpty) discountSlots.add(names.length - 1);
-        continue;
-      }
-
-      names.add((name: line, quantity: null, unitPrice: null));
-    }
-
-    final count = names.length < prices.length ? names.length : prices.length;
-    final items = <LineItem>[
-      for (var i = 0; i < count; i++)
-        LineItem(
-          id: _id(),
-          name: names[i].name,
-          price: prices[i],
-          quantity: names[i].quantity,
-          unitPrice: names[i].unitPrice,
-        ),
-    ];
-
-    for (var i = 0; i < discountSlots.length && i < discounts.length; i++) {
-      final index = discountSlots[i];
-      if (index < 0 || index >= items.length) continue;
-      final item = items[index];
-      final discount = discounts[i];
-      items[index] = item.copyWith(
-        price: roundMoney(item.price + discount),
-        discount: roundMoney(item.discount + discount),
-      );
-    }
-
-    final receiptTotal = _readAmountAfterKeyword(
-      lines,
-      config,
-      config.grandTotalKeywords,
-      skipIf: (line) => config.matchesAny(line, [
-        ...config.totalDiscountKeywords,
-        ...config.taxInclusiveTotalKeywords,
-        ...config.subtotalKeywords,
-      ]),
-    );
-    var totalDiscount = discounts.fold<double>(0, (sum, value) => sum + value);
-    totalDiscount +=
-        _readAmountAfterKeyword(lines, config, config.totalDiscountKeywords) ??
-        0;
-
-    return _result(
-      items: items,
-      rawText: rawText,
-      receiptTotal: receiptTotal,
-      totalDiscount: totalDiscount,
-    );
-  }
-
-  static LineItem _toItem(_Pending pending, double total) {
-    return LineItem(
-      id: _id(),
-      name: pending.name,
-      price: roundMoney(total),
-      quantity: pending.quantity == 1 ? null : pending.quantity,
-      unitPrice: pending.quantity == 1 ? null : pending.unitPrice,
-      discount: pending.discount == 0 ? 0 : roundMoney(pending.discount),
-    );
-  }
-
-  static ReceiptParseResult _result({
-    required List<LineItem> items,
-    required String rawText,
-    double? receiptTotal,
-    double totalDiscount = 0,
+  static ReceiptParseResult parseRecognizedText(
+    RecognizedText recognized, {
+    required double imageWidth,
+    required double imageHeight,
   }) {
-    final kept = items
-        .where((item) => item.name.trim().isNotEmpty && item.price > 0)
-        .toList();
-    final sum = roundMoney(
-      kept.fold<double>(0, (total, item) => total + item.price),
+    final document = ReceiptOcr.fromRecognizedText(
+      recognized,
+      imageWidth: imageWidth,
+      imageHeight: imageHeight,
     );
-    final passed =
-        receiptTotal == null ||
-        (sum - receiptTotal).abs() <= 0.01 ||
-        (sum + totalDiscount - receiptTotal).abs() <= 0.01;
-    return ReceiptParseResult(
-      items: kept,
-      store: _detectStore(rawText),
-      receiptTotal: receiptTotal,
-      totalDiscount: totalDiscount,
-      validationPassed: passed,
+    return _parseDocument(document);
+  }
+
+  static ReceiptParseResult _parseDocument(OcrDocument document) {
+    if (ReceiptTextParser.looksLikeColumnOcr(document.flattenedText)) {
+      return _withImageDimensions(
+        ReceiptTextParser.parseReceipt(document.flattenedText),
+        document,
       );
     }
 
-  static String? _detectStore(String rawText) {
-    final config = receiptParseConfig;
-    final header = rawText
-        .split('\n')
-        .map(_preprocess)
-        .where((line) => line.isNotEmpty)
-        .take(8)
-        .join('\n')
-        .toUpperCase();
-    final stores = [...config.knownStores]
-      ..sort((a, b) => b.length.compareTo(a.length));
-    for (final store in stores) {
-      if (RegExp('\\b${RegExp.escape(store)}\\b').hasMatch(header)) {
-        return _canonicalStore(store);
-      }
-    }
-    return null;
-  }
-
-  static String _canonicalStore(String raw) {
-    const aliases = {
-      'AH': 'Albert Heijn',
-      'ALBERT HEIJN': 'Albert Heijn',
-      'JUMBO': 'Jumbo',
-      'LIDL': 'Lidl',
-      'KRUIDVAT': 'Kruidvat',
-      'ALDI': 'Aldi',
-      'PLUS': 'Plus',
-      'DIRK': 'Dirk',
-      'COOP': 'Coop',
-      'SPAR': 'SPAR',
-      'VOMAR': 'Vomar',
-      'EKOPLAZA': 'Ekoplaza',
-      'HOOGVLIET': 'Hoogvliet',
-      'ACTION': 'Action',
-      'ETOS': 'Etos',
-      'WORLD TOKO': 'World Toko',
-    };
-    return aliases[raw.toUpperCase()] ?? raw;
-  }
-
-  static double? _readAmountAfterKeyword(
-    List<String> lines,
-    ReceiptParseConfig config,
-    List<String> keywords, {
-    bool Function(String line)? skipIf,
-  }) {
-    for (var i = 0; i < lines.length; i++) {
-      final line = _stripTax(lines[i], config);
-      if (!config.matchesAny(line, keywords)) continue;
-      if (skipIf != null && skipIf(line)) continue;
-      final trailing = _trailingPrice(line, config);
-      if (trailing != null) return trailing;
-      if (i + 1 < lines.length) {
-        final next = tryParsePrice(_stripTax(lines[i + 1], config));
-        if (next != null) return next;
-      }
-    }
-    return null;
-  }
-
-  static _Line _classify(String raw, ReceiptParseConfig config) {
-    final line = _stripTax(raw, config);
-    if (_isIgnorable(line, config)) {
-      return _Line(kind: _Kind.skip, raw: line);
-    }
-    if (config.matchesAny(line, config.totalDiscountKeywords)) {
-      return _Line(
-        kind: _Kind.totalDiscount,
-        raw: line,
-        amount: _trailingPrice(line, config),
+    final spatial = ReceiptSpatialParser.parse(document);
+    if (_shouldFallbackToText(spatial)) {
+      return _withImageDimensions(
+        ReceiptTextParser.parseReceipt(document.flattenedText),
+        document,
       );
     }
-    if (config.matchesAny(line, config.taxInclusiveTotalKeywords) ||
-        config.matchesAny(line, config.subtotalKeywords)) {
-      return _Line(kind: _Kind.skip, raw: line);
-    }
-    if (config.matchesAny(line, config.grandTotalKeywords)) {
-      return _Line(
-        kind: _Kind.grandTotal,
-        raw: line,
-        amount: _trailingPrice(line, config),
-      );
+    return spatial;
   }
 
-    final qty = _parseQty(line, config);
-    if (qty != null) {
-      return _Line(kind: _Kind.quantity, raw: line, qty: qty);
-    }
-
-    final isDiscount =
-        config.matchesAny(line, config.discountKeywords) ||
-        config.negativeAmount.hasMatch(line);
-    if (isDiscount &&
-        (config.matchesAny(line, config.discountKeywords) ||
-            isPriceOnly(line))) {
-      return _Line(
-        kind: _Kind.discount,
-        raw: line,
-        name: line,
-        amount: _trailingPrice(line, config) ?? tryParsePrice(line),
-      );
-    }
-
-    if (isPriceOnly(line)) {
-      return _Line(
-        kind: _Kind.priceOnly,
-        raw: line,
-        amount: tryParsePrice(line),
-      );
-    }
-
-    final inline = config.quantityInline.firstMatch(line);
-    final trailing = _trailingPrice(line, config);
-    if (trailing != null) {
-      var name = line.replaceFirst(RegExp(r'\s+-?\d+[.,]\d{2}\s*$'), '').trim();
-      _Qty? inlineQty;
-      if (inline != null) {
-        name = line.substring(0, inline.start).trim();
-        final count = int.tryParse(inline.group(1)!);
-        final unit = tryParsePrice(inline.group(2)!);
-        if (count != null && unit != null) {
-          inlineQty = _Qty(count: count, unitPrice: unit, total: trailing);
-        }
-      }
-      if (name.isEmpty || _isIgnorable(name, config)) {
-        return _Line(kind: _Kind.skip, raw: line);
-      }
-      return _Line(
-        kind: _Kind.item,
-        raw: line,
-        name: name,
-        amount: trailing,
-        qty: inlineQty,
-      );
-    }
-
-    if (inline != null) {
-      final name = line.substring(0, inline.start).trim();
-      final count = int.tryParse(inline.group(1)!);
-      final unit = tryParsePrice(inline.group(2)!);
-      if (name.isNotEmpty && count != null && unit != null) {
-        return _Line(
-          kind: _Kind.item,
-          raw: line,
-          name: name,
-          amount: roundMoney(count * unit),
-          qty: _Qty(count: count, unitPrice: unit),
-        );
-      }
-    }
-
-    return _Line(kind: _Kind.nameOnly, raw: line, name: line);
-  }
-
-  static bool _isIgnorable(String line, ReceiptParseConfig config) {
-    if (config.separatorPattern.hasMatch(line)) return true;
-    if (_urlPattern.hasMatch(line)) return true;
-    if (_postalPattern.hasMatch(line)) return true;
-    if (_phonePattern.hasMatch(line.replaceAll(RegExp(r'\s'), ''))) {
-      return true;
-    }
-    if (_streetPattern.hasMatch(line)) return true;
-    if (config.categoryRow.hasMatch(line)) return true;
-    if (config.isStandaloneKeywordLine(line, config.columnHeaderKeywords)) {
-      return true;
-    }
-    if (config.isStandaloneKeywordLine(line, config.itemCountKeywords)) {
-      return true;
-    }
-    if (config.matchesAny(line, config.taxKeywords)) return true;
-    if (config.matchesAny(line, config.paymentKeywords)) return true;
-    if (config.matchesAny(line, config.noiseKeywords)) return true;
+  static bool _shouldFallbackToText(ReceiptParseResult spatial) {
+    if (spatial.items.isEmpty) return true;
+    final flagged =
+        spatial.items.where((item) => item.needsManualReview).length;
+    if (flagged > 0) return true;
+    if (spatial.items.any((item) => item.price <= 0)) return true;
+    if (spatial.receiptTotal != null && !spatial.validationPassed) return true;
     return false;
   }
 
-  static double? _trailingPrice(String line, ReceiptParseConfig config) {
-    final match = RegExp(r'(-?\d+[.,]\d{2})\s*$').firstMatch(line);
-    if (match == null) return null;
-    return tryParsePrice(match.group(1)!);
-  }
-
-  static _Qty? _parseQty(String line, ReceiptParseConfig config) {
-    final match =
-        _qtyWithTotal.firstMatch(line) ??
-        config.quantityStandalone.firstMatch(line);
-    if (match == null) return null;
-    final count = int.tryParse(match.group(1)!);
-    final unit = tryParsePrice(match.group(2)!);
-    if (count == null || count < 1 || unit == null) return null;
-    double? total;
-    if (match.groupCount >= 3) {
-      final raw = match.group(3);
-      if (raw != null && RegExp(r'^-?\d+[.,]\d{2}$').hasMatch(raw)) {
-        total = tryParsePrice(raw);
-      }
-    }
-    return _Qty(count: count, unitPrice: unit, total: total);
+  static ReceiptParseResult _withImageDimensions(
+    ReceiptParseResult result,
+    OcrDocument document,
+  ) {
+    return ReceiptParseResult(
+      items: result.items,
+      store: result.store,
+      receiptTotal: result.receiptTotal,
+      totalDiscount: result.totalDiscount,
+      validationPassed: result.validationPassed,
+      expectedItemCount: result.expectedItemCount,
+      ocrImageWidth: document.imageWidth,
+      ocrImageHeight: document.imageHeight,
+    );
   }
 }

lib/services/receipt_row_builder.dart

@@ -0,0 +1,362 @@
+/// Cluster OCR elements into rows and classify using column positions.
+library;
+
+import '../models/ocr_element.dart';
+import '../models/receipt_bounds.dart';
+import '../models/receipt_row.dart';
+import '../utils/money.dart';
+import 'receipt_parse_config.dart';
+
+final _postalPattern = RegExp(r'\d{4}\s*[A-Za-z]{2}\b');
+final _phonePattern = RegExp(r'^\d{8,}$');
+final _streetPattern = RegExp(r"^[A-Za-z. ''-]+\s+\d{1,4}[A-Za-z]?$");
+final _urlPattern = RegExp(r'www\.|\.com|\.nl', caseSensitive: false);
+
+/// Pure quantity row — checked before any other row classification.
+final _pureQuantityRow = RegExp(
+  r'^\s*(\d+)\s*[xX×]\s*(\d+[,.]\d{2})\s*(PER\s+STUK|PER\s+KG|ST\.?|STUKS?)?\s*$',
+  caseSensitive: false,
+);
+
+final _priceToken = RegExp(r'^-?\d+[,.]\d{2}$');
+
+class ReceiptRowBuilder {
+  ReceiptRowBuilder(this.config);
+
+  final ReceiptParseConfig config;
+
+  List<ReceiptRow> buildRows(OcrDocument document) {
+    if (document.elements.isEmpty) return const [];
+
+    final contentWidth = _contentWidth(document.elements);
+    final contentLeft = _contentLeft(document.elements);
+    final priceColumnStart =
+        contentLeft + contentWidth * (1 - config.priceColumnWidthFraction);
+
+    // Prefer ML Kit line boundaries — element Y-clustering merges adjacent lines.
+    if (document.lines.isNotEmpty) {
+      return [
+        for (final line in document.lines)
+          _classifyRow(
+            line.elements,
+            priceColumnStart: priceColumnStart,
+            imageWidth: document.imageWidth,
+            imageHeight: document.imageHeight,
+            rowText: line.text,
+          ),
+      ];
+    }
+
+    final rowClusterThreshold = _rowClusterThreshold(document.elements);
+    final clustered = _clusterByY(document.elements, rowClusterThreshold);
+
+    return [
+      for (final rowElements in clustered)
+        _classifyRow(
+          rowElements,
+          priceColumnStart: priceColumnStart,
+          imageWidth: document.imageWidth,
+          imageHeight: document.imageHeight,
+        ),
+    ];
+  }
+
+  double _rowClusterThreshold(List<OcrElement> elements) {
+    final heights = [
+      for (final element in elements)
+        if (element.height > 0) element.height,
+    ]..sort();
+    if (heights.isEmpty) return 12;
+    final median = heights[heights.length ~/ 2];
+    return median * config.rowClusterHeightFactor;
+  }
+
+  List<List<OcrElement>> _clusterByY(
+    List<OcrElement> elements,
+    double threshold,
+  ) {
+    final sorted = [...elements]..sort((a, b) {
+      final dy = a.centerY.compareTo(b.centerY);
+      if (dy != 0) return dy;
+      return a.left.compareTo(b.left);
+    });
+
+    final rows = <List<OcrElement>>[];
+    List<OcrElement>? current;
+    double? anchorY;
+
+    for (final element in sorted) {
+      if (current == null) {
+        current = [element];
+        anchorY = element.centerY;
+        continue;
+      }
+      if ((element.centerY - anchorY!).abs() <= threshold) {
+        current.add(element);
+      } else {
+        current.sort((a, b) => a.left.compareTo(b.left));
+        rows.add(current);
+        current = [element];
+        anchorY = element.centerY;
+      }
+    }
+    if (current != null) {
+      current.sort((a, b) => a.left.compareTo(b.left));
+      rows.add(current);
+    }
+    return rows;
+  }
+
+  double _contentWidth(List<OcrElement> elements) {
+    var minLeft = double.infinity;
+    var maxRight = 0.0;
+    for (final element in elements) {
+      if (element.left < minLeft) minLeft = element.left;
+      if (element.right > maxRight) maxRight = element.right;
+    }
+    if (minLeft == double.infinity) return 1;
+    return (maxRight - minLeft).clamp(1, double.infinity);
+  }
+
+  double _contentLeft(List<OcrElement> elements) {
+    var minLeft = double.infinity;
+    for (final element in elements) {
+      if (element.left < minLeft) minLeft = element.left;
+    }
+    return minLeft == double.infinity ? 0 : minLeft;
+  }
+
+  ReceiptRow _classifyRow(
+    List<OcrElement> rowElements, {
+    required double priceColumnStart,
+    required double imageWidth,
+    required double imageHeight,
+    String? rowText,
+  }) {
+    final text = rowText ?? rowElements.map((e) => e.text).join(' ').trim();
+    final normalized = _preprocess(text);
+    final bounds = _rowBounds(rowElements, imageWidth, imageHeight);
+
+    // 4. Quantity modifier — entire row, checked first.
+    final pureQty = _pureQuantityRow.firstMatch(normalized);
+    if (pureQty != null) {
+      final count = int.tryParse(pureQty.group(1)!);
+      final unit = tryParsePrice(pureQty.group(2)!);
+      return ReceiptRow(
+        kind: ReceiptRowKind.quantityModifier,
+        text: normalized,
+        nameText: '',
+        quantity: count,
+        unitPrice: unit,
+        lineTotal: count != null && unit != null
+            ? roundMoney(count * unit)
+            : null,
+        elements: rowElements,
+        bounds: bounds,
+      );
+    }
+
+    if (_isIgnorable(normalized)) {
+      return ReceiptRow(
+        kind: ReceiptRowKind.skip,
+        text: normalized,
+        nameText: '',
+        elements: rowElements,
+        bounds: bounds,
+      );
+    }
+
+    if (config.matchesAny(normalized, config.totalDiscountKeywords)) {
+      return ReceiptRow(
+        kind: ReceiptRowKind.totalDiscount,
+        text: normalized,
+        nameText: normalized,
+        price: _rowPrice(rowElements, priceColumnStart) ??
+            _trailingPrice(normalized),
+        elements: rowElements,
+        bounds: bounds,
+      );
+    }
+
+    if (config.matchesAny(normalized, config.taxInclusiveTotalKeywords) ||
+        config.matchesAny(normalized, config.subtotalKeywords)) {
+      return ReceiptRow(
+        kind: ReceiptRowKind.skip,
+        text: normalized,
+        nameText: '',
+        elements: rowElements,
+        bounds: bounds,
+      );
+    }
+
+    if (config.matchesAny(normalized, config.grandTotalKeywords)) {
+      return ReceiptRow(
+        kind: ReceiptRowKind.grandTotal,
+        text: normalized,
+        nameText: normalized,
+        price: _rowPrice(rowElements, priceColumnStart) ??
+            _trailingPrice(normalized),
+        elements: rowElements,
+        bounds: bounds,
+      );
+    }
+
+    final isDiscount =
+        config.matchesAny(normalized, config.discountKeywords) ||
+        config.negativeAmount.hasMatch(normalized);
+    if (isDiscount) {
+      return ReceiptRow(
+        kind: ReceiptRowKind.discount,
+        text: normalized,
+        nameText: normalized,
+        price: _rowPrice(rowElements, priceColumnStart) ??
+            _trailingPrice(normalized) ??
+            tryParsePrice(normalized),
+        elements: rowElements,
+        bounds: bounds,
+      );
+    }
+
+    final price = _rowPrice(rowElements, priceColumnStart);
+    final inlineQty = config.quantityInline.firstMatch(normalized);
+    var nameText = _nameFromElements(rowElements, priceColumnStart);
+
+    if (price != null) {
+      if (inlineQty != null) {
+        nameText = normalized.substring(0, inlineQty.start).trim();
+        final count = int.tryParse(inlineQty.group(1)!);
+        final unit = tryParsePrice(inlineQty.group(2)!);
+        if (nameText.isNotEmpty && count != null && unit != null) {
+          return ReceiptRow(
+            kind: ReceiptRowKind.item,
+            text: normalized,
+            nameText: nameText,
+            price: price,
+            quantity: count,
+            unitPrice: unit,
+            lineTotal: price,
+            elements: rowElements,
+            bounds: bounds,
+          );
+        }
+      }
+      if (nameText.isEmpty || _isIgnorable(nameText)) {
+        return ReceiptRow(
+          kind: ReceiptRowKind.skip,
+          text: normalized,
+          nameText: nameText,
+          elements: rowElements,
+          bounds: bounds,
+        );
+      }
+      return ReceiptRow(
+        kind: ReceiptRowKind.item,
+        text: normalized,
+        nameText: nameText,
+        price: price,
+        lineTotal: price,
+        elements: rowElements,
+        bounds: bounds,
+      );
+    }
+
+    if (nameText.isEmpty) nameText = normalized;
+    return ReceiptRow(
+      kind: ReceiptRowKind.nameOnly,
+      text: normalized,
+      nameText: nameText,
+      elements: rowElements,
+      bounds: bounds,
+    );
+  }
+
+  double? _rowPrice(List<OcrElement> elements, double priceColumnStart) {
+    double? best;
+    var bestX = -1.0;
+    for (final element in elements) {
+      if (element.centerX < priceColumnStart) continue;
+      final token = element.text.trim().replaceAll(
+        config.trailingCategoryLetter,
+        '',
+      );
+      if (!_priceToken.hasMatch(token)) continue;
+      final value = tryParsePrice(token);
+      if (value == null) continue;
+      if (element.centerX >= bestX) {
+        bestX = element.centerX;
+        best = value;
+      }
+    }
+    return best;
+  }
+
+  String _nameFromElements(List<OcrElement> elements, double priceColumnStart) {
+    final parts = <String>[];
+    for (final element in elements) {
+      if (element.centerX >= priceColumnStart &&
+          _priceToken.hasMatch(element.text.trim())) {
+        continue;
+      }
+      final cleaned = element.text
+          .replaceFirst(config.trailingCategoryLetter, '')
+          .trim();
+      if (cleaned.isNotEmpty) parts.add(cleaned);
+    }
+    return _preprocess(parts.join(' '));
+  }
+
+  ReceiptBounds? _rowBounds(
+    List<OcrElement> elements,
+    double imageWidth,
+    double imageHeight,
+  ) {
+    if (elements.isEmpty || imageWidth <= 0 || imageHeight <= 0) return null;
+    var left = double.infinity;
+    var top = double.infinity;
+    var right = 0.0;
+    var bottom = 0.0;
+    for (final element in elements) {
+      if (element.left < left) left = element.left;
+      if (element.top < top) top = element.top;
+      if (element.right > right) right = element.right;
+      if (element.bottom > bottom) bottom = element.bottom;
+    }
+    return ReceiptBounds.fromPixelRect(
+      left: left,
+      top: top,
+      right: right,
+      bottom: bottom,
+      imageWidth: imageWidth,
+      imageHeight: imageHeight,
+    );
+  }
+
+  String _preprocess(String line) =>
+      line.trim().replaceAll(RegExp(r'\s+'), ' ');
+
+  double? _trailingPrice(String line) {
+    final stripped = line.replaceFirst(config.trailingCategoryLetter, '').trim();
+    final match = RegExp(r'(-?\d+[.,]\d{2})\s*$').firstMatch(stripped);
+    if (match == null) return null;
+    return tryParsePrice(match.group(1)!);
+  }
+
+  bool _isIgnorable(String line) {
+    if (config.separatorPattern.hasMatch(line)) return true;
+    if (_urlPattern.hasMatch(line)) return true;
+    if (_postalPattern.hasMatch(line)) return true;
+    if (_phonePattern.hasMatch(line.replaceAll(RegExp(r'\s'), ''))) return true;
+    if (_streetPattern.hasMatch(line)) return true;
+    if (config.categoryRow.hasMatch(line)) return true;
+    if (config.isStandaloneKeywordLine(line, config.columnHeaderKeywords)) {
+      return true;
+    }
+    if (config.isStandaloneKeywordLine(line, config.itemCountKeywords)) {
+      return true;
+    }
+    if (config.matchesAny(line, config.taxKeywords)) return true;
+    if (config.matchesAny(line, config.paymentKeywords)) return true;
+    if (config.matchesAny(line, config.noiseKeywords)) return true;
+    return false;
+  }
+}

lib/services/receipt_spatial_parser.dart

@@ -0,0 +1,274 @@
+/// Spatial receipt parser: row clustering, column logic, and lookahead buffer.
+library;
+
+import '../models/line_item.dart';
+import '../models/ocr_element.dart';
+import '../models/receipt_bounds.dart';
+import '../models/receipt_row.dart';
+import '../utils/money.dart';
+import 'receipt_parse_config.dart';
+import 'receipt_row_builder.dart';
+import 'receipt_text_parser.dart';
+
+class _PendingItem {
+  _PendingItem({
+    required this.name,
+    this.unitPrice,
+    this.lineTotal,
+    this.quantity = 1,
+    this.bounds,
+  });
+
+  String name;
+  double? unitPrice;
+  double? lineTotal;
+  int quantity;
+  double discount = 0;
+  ReceiptBounds? bounds;
+
+  void mergeBounds(ReceiptBounds? other) {
+    if (other == null) return;
+    bounds = bounds == null ? other : bounds!.union(other);
+  }
+}
+
+class ReceiptSpatialParser {
+  ReceiptSpatialParser._();
+
+  static int _nextId = 0;
+  static String _id() => 'item-${++_nextId}';
+
+  static ReceiptParseResult parse(OcrDocument document) {
+    _nextId = 0;
+    final config = receiptParseConfig;
+    final rows = ReceiptRowBuilder(config).buildRows(document);
+    return _parseRows(
+      rows,
+      rawText: document.flattenedText,
+      imageWidth: document.imageWidth,
+      imageHeight: document.imageHeight,
+    );
+  }
+
+  static ReceiptParseResult _parseRows(
+    List<ReceiptRow> rows, {
+    required String rawText,
+    required double imageWidth,
+    required double imageHeight,
+  }) {
+    final config = receiptParseConfig;
+    final items = <LineItem>[];
+    _PendingItem? pending;
+    var receiptTotal = _readTotalFromRows(rows, config);
+    var totalDiscount = 0.0;
+    var stop = false;
+
+    void emitPending({required bool needsReview}) {
+      final current = pending;
+      pending = null;
+      if (current == null) return;
+      final total = current.lineTotal ?? current.unitPrice;
+      if (total == null) {
+        items.add(
+          LineItem(
+            id: _id(),
+            name: current.name,
+            price: 0,
+            sourceBounds: current.bounds,
+            needsManualReview: true,
+          ),
+        );
+        return;
+      }
+      items.add(
+        LineItem(
+          id: _id(),
+          name: current.name,
+          price: roundMoney(total),
+          quantity: current.quantity == 1 ? null : current.quantity,
+          unitPrice: current.quantity == 1 ? null : current.unitPrice,
+          discount: current.discount == 0 ? 0 : roundMoney(current.discount),
+          sourceBounds: current.bounds,
+          needsManualReview: needsReview,
+        ),
+      );
+    }
+
+    for (var i = 0; i < rows.length && !stop; i++) {
+      final row = rows[i];
+      switch (row.kind) {
+        case ReceiptRowKind.skip:
+          continue;
+        case ReceiptRowKind.quantityModifier:
+          if (pending != null &&
+              row.quantity != null &&
+              row.unitPrice != null) {
+            pending!
+              ..quantity = row.quantity!
+              ..unitPrice = row.unitPrice
+              ..lineTotal = row.lineTotal ?? roundMoney(row.quantity! * row.unitPrice!);
+            pending!.mergeBounds(row.bounds);
+            emitPending(needsReview: false);
+          }
+          continue;
+        case ReceiptRowKind.nameOnly:
+          emitPending(needsReview: pending?.lineTotal == null);
+          pending = _PendingItem(name: row.nameText, bounds: row.bounds);
+          final next = i + 1 < rows.length ? rows[i + 1] : null;
+          if (next?.kind == ReceiptRowKind.quantityModifier) {
+            continue;
+          }
+          emitPending(needsReview: true);
+          continue;
+        case ReceiptRowKind.item:
+          emitPending(needsReview: pending?.lineTotal == null);
+          pending = _PendingItem(
+            name: row.nameText,
+            unitPrice: row.unitPrice ?? row.price,
+            lineTotal: row.lineTotal ?? row.price,
+            quantity: row.quantity ?? 1,
+            bounds: row.bounds,
+          );
+          if (row.quantity != null) {
+            pending!.unitPrice = row.unitPrice;
+          }
+          final nextItem = i + 1 < rows.length ? rows[i + 1] : null;
+          if (nextItem?.kind == ReceiptRowKind.quantityModifier) {
+            continue;
+          }
+          emitPending(needsReview: false);
+          continue;
+        case ReceiptRowKind.discount:
+          var amount = row.price;
+          if (amount == null && i + 1 < rows.length) {
+            amount = rows[i + 1].price;
+            if (amount != null) i++;
+          }
+          if (amount == null) continue;
+          if (amount > 0) amount = -amount;
+          if (pending != null) {
+            pending!.discount += amount;
+            pending!.lineTotal = roundMoney(
+              (pending!.lineTotal ?? pending!.unitPrice ?? 0) + amount,
+            );
+            pending!.mergeBounds(row.bounds);
+          } else {
+            totalDiscount += amount;
+          }
+          continue;
+        case ReceiptRowKind.totalDiscount:
+          var amount = row.price;
+          if (amount == null && i + 1 < rows.length) {
+            amount = rows[i + 1].price;
+            if (amount != null) i++;
+          }
+          if (amount != null) {
+            totalDiscount += amount > 0 ? -amount : amount;
+          }
+          continue;
+        case ReceiptRowKind.grandTotal:
+          emitPending(needsReview: pending?.lineTotal == null);
+          if (row.price != null) {
+            receiptTotal = row.price;
+            stop = true;
+          }
+          continue;
+      }
+    }
+    emitPending(needsReview: pending?.lineTotal == null);
+
+    final expectedItemCount = _readExpectedItemCount(rows, config);
+    return _finalize(
+      items: items,
+      rawText: rawText,
+      receiptTotal: receiptTotal,
+      totalDiscount: totalDiscount,
+      expectedItemCount: expectedItemCount,
+      imageWidth: imageWidth,
+      imageHeight: imageHeight,
+    );
+  }
+
+  static double? _readTotalFromRows(
+    List<ReceiptRow> rows,
+    ReceiptParseConfig config,
+  ) {
+    for (final row in rows) {
+      if (row.kind != ReceiptRowKind.grandTotal) continue;
+      if (config.matchesAny(row.text, [
+        ...config.totalDiscountKeywords,
+        ...config.taxInclusiveTotalKeywords,
+        ...config.subtotalKeywords,
+      ])) {
+        continue;
+      }
+      return row.price;
+    }
+    return null;
+  }
+
+  static int? _readExpectedItemCount(
+    List<ReceiptRow> rows,
+    ReceiptParseConfig config,
+  ) {
+    final pattern = RegExp(
+      r'(\d+)\s*$',
+      caseSensitive: false,
+    );
+    for (final row in rows) {
+      if (!config.matchesAny(row.text, config.itemCountKeywords)) continue;
+      final match = pattern.firstMatch(row.text);
+      if (match != null) {
+        return int.tryParse(match.group(1)!);
+      }
+    }
+    return null;
+  }
+
+  static ReceiptParseResult _finalize({
+    required List<LineItem> items,
+    required String rawText,
+    double? receiptTotal,
+    double totalDiscount = 0,
+    int? expectedItemCount,
+    required double imageWidth,
+    required double imageHeight,
+  }) {
+    final kept = items
+        .where(
+          (item) =>
+              item.name.trim().isNotEmpty &&
+              (item.price > 0 || item.needsManualReview),
+        )
+        .toList();
+    final sum = roundMoney(
+      kept
+          .where((item) => item.price > 0)
+          .fold<double>(0, (total, item) => total + item.price),
+    );
+
+    var passed = true;
+    if (receiptTotal != null) {
+      passed =
+          (sum - receiptTotal).abs() <= 0.01 ||
+          (sum + totalDiscount - receiptTotal).abs() <= 0.01;
+    }
+    if (expectedItemCount != null && kept.length != expectedItemCount) {
+      passed = false;
+    }
+    if (kept.any((item) => item.needsManualReview)) {
+      passed = false;
+    }
+
+    return ReceiptParseResult(
+      items: kept,
+      store: ReceiptTextParser.detectStore(rawText),
+      receiptTotal: receiptTotal,
+      totalDiscount: totalDiscount,
+      validationPassed: passed,
+      expectedItemCount: expectedItemCount,
+      ocrImageWidth: imageWidth,
+      ocrImageHeight: imageHeight,
+    );
+  }
+}

lib/services/receipt_text_parser.dart

@@ -0,0 +1,649 @@
+/// Flat text-line receipt parser (fallback when spatial OCR is unavailable).
+library;
+
+import '../models/line_item.dart';
+import '../utils/money.dart';
+import 'receipt_parse_config.dart';
+
+/// Result of a full receipt parse, including totals used for review.
+class ReceiptParseResult {
+  const ReceiptParseResult({
+    required this.items,
+    this.store,
+    this.receiptTotal,
+    this.totalDiscount = 0,
+    this.validationPassed = true,
+    this.expectedItemCount,
+    this.ocrImageWidth,
+    this.ocrImageHeight,
+  });
+
+  final List<LineItem> items;
+  final String? store;
+  final double? receiptTotal;
+  final double totalDiscount;
+  final bool validationPassed;
+  final int? expectedItemCount;
+  final double? ocrImageWidth;
+  final double? ocrImageHeight;
+}
+
+class _Qty {
+  const _Qty({required this.count, required this.unitPrice, this.total});
+
+  final int count;
+  final double unitPrice;
+  final double? total;
+
+  double get lineTotal => total ?? roundMoney(count * unitPrice);
+}
+
+class _Pending {
+  _Pending({
+    required this.name,
+    this.unitPrice,
+    this.quantity = 1,
+    this.lineTotal,
+  });
+
+  String name;
+  double? unitPrice;
+  int quantity;
+  double? lineTotal;
+  double discount = 0;
+}
+
+enum _Kind {
+  skip,
+  item,
+  nameOnly,
+  quantity,
+  discount,
+  grandTotal,
+  totalDiscount,
+  priceOnly,
+}
+
+class _Line {
+  const _Line({
+    required this.kind,
+    required this.raw,
+    this.name,
+    this.amount,
+    this.qty,
+  });
+
+  final _Kind kind;
+  final String raw;
+  final String? name;
+  final double? amount;
+  final _Qty? qty;
+}
+
+final _postalPattern = RegExp(r'\d{4}\s*[A-Za-z]{2}\b');
+final _phonePattern = RegExp(r'^\d{8,}$');
+final _streetPattern = RegExp(r"^[A-Za-z. ''-]+\s+\d{1,4}[A-Za-z]?$");
+final _urlPattern = RegExp(r'www\.|\.com|\.nl', caseSensitive: false);
+
+/// Jumbo-style OCR often adds a line total after `N X unit`.
+final _qtyWithTotal = RegExp(
+  r'^\s*(\d+)\s*[xX×]\s*(-?\d+[,.]\d{2})(?:\s+(?:PER\s+STUK|PER\s+KG|ST\.?|STUKS?))?(?:\s+(-?\d+[,.]\d{2}))?\s*$',
+  caseSensitive: false,
+);
+
+class ReceiptTextParser {
+  ReceiptTextParser._();
+
+  static int _nextId = 0;
+
+  static String _id() => 'item-${++_nextId}';
+
+  static Future<void> loadConfig() => loadReceiptParseConfig();
+
+  static List<LineItem> parse(String rawText) => parseReceipt(rawText).items;
+
+  static ReceiptParseResult parseReceipt(String rawText) {
+    final config = receiptParseConfig;
+    final lines = rawText
+        .split('\n')
+        .map(_preprocess)
+        .where((line) => line.isNotEmpty)
+        .toList();
+
+    if (_looksLikeColumnOcr(lines, config)) {
+      return _parseColumns(lines, config, rawText);
+    }
+    return _parseSequential(lines, config, rawText);
+  }
+
+  /// True when OCR dumped an entire name column before a price column (Jumbo-style).
+  static bool looksLikeColumnOcr(String rawText) {
+    final config = receiptParseConfig;
+    final lines = rawText
+        .split('\n')
+        .map(_preprocess)
+        .where((line) => line.isNotEmpty)
+        .toList();
+    return _looksLikeColumnOcr(lines, config);
+  }
+
+  static String _preprocess(String line) =>
+      line.trim().replaceAll(RegExp(r'\s+'), ' ');
+
+  static String _stripTax(String line, ReceiptParseConfig config) {
+    return line.replaceFirst(config.trailingCategoryLetter, '').trim();
+  }
+
+  static bool _looksLikeColumnOcr(
+    List<String> lines,
+    ReceiptParseConfig config,
+  ) {
+    var run = 0;
+    var maxRun = 0;
+    var prices = 0;
+    var names = 0;
+    for (final line in lines) {
+      final stripped = _stripTax(line, config);
+      if (isPriceOnly(stripped)) {
+        prices++;
+        run++;
+        if (run > maxRun) maxRun = run;
+      } else {
+        run = 0;
+        if (_parseQty(stripped, config) == null &&
+            !_isIgnorable(stripped, config) &&
+            !config.matchesAny(stripped, [
+              ...config.grandTotalKeywords,
+              ...config.subtotalKeywords,
+              ...config.taxInclusiveTotalKeywords,
+              ...config.totalDiscountKeywords,
+            ]) &&
+            _trailingPrice(stripped, config) == null) {
+          names++;
+        }
+      }
+    }
+    if (maxRun >= 4 && prices >= 4 && names >= 4) return true;
+    // ML Kit sometimes splits a short receipt into names, then prices (2–3 items).
+    return maxRun >= 2 && prices >= 2 && names >= prices && maxRun >= prices;
+  }
+
+  static ReceiptParseResult _parseSequential(
+    List<String> lines,
+    ReceiptParseConfig config,
+    String rawText,
+  ) {
+    final items = <LineItem>[];
+    _Pending? pending;
+    var receiptTotal = _readAmountAfterKeyword(
+      lines,
+      config,
+      config.grandTotalKeywords,
+      skipIf: (line) => config.matchesAny(line, [
+        ...config.totalDiscountKeywords,
+        ...config.taxInclusiveTotalKeywords,
+        ...config.subtotalKeywords,
+      ]),
+    );
+    var totalDiscount = 0.0;
+    var stop = false;
+
+    void flush() {
+      final current = pending;
+      pending = null;
+      if (current == null) return;
+      final total = current.lineTotal ?? current.unitPrice;
+      if (total == null) return;
+      items.add(_toItem(current, total));
+    }
+
+    for (var i = 0; i < lines.length && !stop; i++) {
+      final classified = _classify(lines[i], config);
+      switch (classified.kind) {
+        case _Kind.skip:
+          continue;
+        case _Kind.item:
+          flush();
+          pending = _Pending(
+            name: classified.name!,
+            unitPrice: classified.amount,
+            quantity: classified.qty?.count ?? 1,
+            lineTotal: classified.qty == null
+                ? classified.amount
+                : classified.qty!.lineTotal,
+          );
+          if (classified.qty != null) {
+            pending!.unitPrice = classified.qty!.unitPrice;
+          }
+        case _Kind.nameOnly:
+          flush();
+          pending = _Pending(name: classified.name ?? classified.raw);
+        case _Kind.quantity:
+          final qty = classified.qty!;
+          if (pending != null) {
+            pending!
+              ..quantity = qty.count
+              ..unitPrice = qty.unitPrice
+              ..lineTotal = qty.lineTotal;
+          }
+        case _Kind.discount:
+          var amount = classified.amount;
+          if (amount == null && i + 1 < lines.length) {
+            amount = tryParsePrice(_stripTax(lines[i + 1], config));
+            if (amount != null) i++;
+          }
+          if (amount == null) continue;
+          if (amount > 0) amount = -amount;
+          if (pending != null) {
+            pending!.discount += amount;
+            pending!.lineTotal = roundMoney(
+              (pending!.lineTotal ?? pending!.unitPrice ?? 0) + amount,
+            );
+          } else {
+            totalDiscount += amount;
+          }
+        case _Kind.totalDiscount:
+          var amount = classified.amount;
+          if (amount == null && i + 1 < lines.length) {
+            amount = tryParsePrice(_stripTax(lines[i + 1], config));
+            if (amount != null) i++;
+          }
+          if (amount != null) {
+            totalDiscount += amount > 0 ? -amount : amount;
+          }
+        case _Kind.grandTotal:
+          flush();
+          if (classified.amount != null) {
+            receiptTotal = classified.amount;
+            stop = true;
+          }
+        case _Kind.priceOnly:
+          final amount = classified.amount!;
+          if (pending != null) {
+            if (amount < 0) {
+              pending!.discount += amount;
+              pending!.lineTotal = roundMoney(
+                (pending!.lineTotal ?? pending!.unitPrice ?? 0) + amount,
+              );
+            } else if (pending!.lineTotal == null &&
+                pending!.unitPrice == null) {
+              pending!.lineTotal = amount;
+              flush();
+            }
+          }
+      }
+    }
+    flush();
+
+    return _result(
+      items: items,
+      rawText: rawText,
+      receiptTotal: receiptTotal,
+      totalDiscount: totalDiscount,
+      lines: lines,
+    );
+  }
+
+  static ReceiptParseResult _parseColumns(
+    List<String> lines,
+    ReceiptParseConfig config,
+    String rawText,
+  ) {
+    final names = <({String name, int? quantity, double? unitPrice})>[];
+    final prices = <double>[];
+    final discountSlots = <int>[];
+    final discounts = <double>[];
+
+    for (final raw in lines) {
+      final line = _stripTax(raw, config);
+      if (isPriceOnly(line)) {
+        final price = tryParsePrice(line);
+        if (price == null) continue;
+        if (price < 0) {
+          discounts.add(price);
+        } else {
+          prices.add(price);
+        }
+        continue;
+      }
+      if (_isIgnorable(line, config)) continue;
+      if (config.matchesAny(line, [
+        ...config.grandTotalKeywords,
+        ...config.subtotalKeywords,
+        ...config.taxInclusiveTotalKeywords,
+        ...config.totalDiscountKeywords,
+      ])) {
+        continue;
+      }
+
+      final qty = _parseQty(line, config);
+      if (qty != null) {
+        if (names.isNotEmpty) {
+          final last = names.removeLast();
+          names.add((
+            name: last.name,
+            quantity: qty.count,
+            unitPrice: qty.unitPrice,
+          ));
+        }
+        continue;
+      }
+
+      if (config.matchesAny(line, config.discountKeywords)) {
+        if (names.isNotEmpty) discountSlots.add(names.length - 1);
+        continue;
+      }
+
+      names.add((name: line, quantity: null, unitPrice: null));
+    }
+
+    final count = names.length < prices.length ? names.length : prices.length;
+    final pairedNames = names.length > count
+        ? names.sublist(names.length - count)
+        : names;
+    final nameOffset = names.length - pairedNames.length;
+    final items = <LineItem>[
+      for (var i = 0; i < count; i++)
+        LineItem(
+          id: _id(),
+          name: pairedNames[i].name,
+          price: prices[i],
+          quantity: pairedNames[i].quantity,
+          unitPrice: pairedNames[i].unitPrice,
+        ),
+    ];
+
+    for (var i = 0; i < discountSlots.length && i < discounts.length; i++) {
+      final index = discountSlots[i] - nameOffset;
+      if (index < 0 || index >= items.length) continue;
+      final item = items[index];
+      final discount = discounts[i];
+      items[index] = item.copyWith(
+        price: roundMoney(item.price + discount),
+        discount: roundMoney(item.discount + discount),
+      );
+    }
+
+    final receiptTotal = _readAmountAfterKeyword(
+      lines,
+      config,
+      config.grandTotalKeywords,
+      skipIf: (line) => config.matchesAny(line, [
+        ...config.totalDiscountKeywords,
+        ...config.taxInclusiveTotalKeywords,
+        ...config.subtotalKeywords,
+      ]),
+    );
+    var totalDiscount = discounts.fold<double>(0, (sum, value) => sum + value);
+    totalDiscount +=
+        _readAmountAfterKeyword(lines, config, config.totalDiscountKeywords) ??
+        0;
+
+    return _result(
+      items: items,
+      rawText: rawText,
+      receiptTotal: receiptTotal,
+      totalDiscount: totalDiscount,
+      lines: lines,
+    );
+  }
+
+  static LineItem _toItem(_Pending pending, double total) {
+    return LineItem(
+      id: _id(),
+      name: pending.name,
+      price: roundMoney(total),
+      quantity: pending.quantity == 1 ? null : pending.quantity,
+      unitPrice: pending.quantity == 1 ? null : pending.unitPrice,
+      discount: pending.discount == 0 ? 0 : roundMoney(pending.discount),
+    );
+  }
+
+  static ReceiptParseResult _result({
+    required List<LineItem> items,
+    required String rawText,
+    double? receiptTotal,
+    double totalDiscount = 0,
+    List<String>? lines,
+  }) {
+    final config = receiptParseConfig;
+    final kept = items
+        .where((item) => item.name.trim().isNotEmpty && item.price > 0)
+        .toList();
+    final sum = roundMoney(
+      kept.fold<double>(0, (total, item) => total + item.price),
+    );
+    final expectedItemCount = lines == null
+        ? null
+        : _readExpectedItemCountFromLines(lines, config);
+    var passed =
+        receiptTotal == null ||
+        (sum - receiptTotal).abs() <= 0.01 ||
+        (sum + totalDiscount - receiptTotal).abs() <= 0.01;
+    if (expectedItemCount != null && kept.length != expectedItemCount) {
+      passed = false;
+    }
+    return ReceiptParseResult(
+      items: kept,
+      store: detectStore(rawText),
+      receiptTotal: receiptTotal,
+      totalDiscount: totalDiscount,
+      validationPassed: passed,
+      expectedItemCount: expectedItemCount,
+    );
+  }
+
+  static int? _readExpectedItemCountFromLines(
+    List<String> lines,
+    ReceiptParseConfig config,
+  ) {
+    final pattern = RegExp(r'(\d+)\s*$', caseSensitive: false);
+    for (final raw in lines) {
+      final line = _preprocess(raw);
+      if (!config.matchesAny(line, config.itemCountKeywords)) continue;
+      final match = pattern.firstMatch(line);
+      if (match != null) return int.tryParse(match.group(1)!);
+    }
+    return null;
+  }
+
+  static String? detectStore(String rawText) {
+    final config = receiptParseConfig;
+    final header = rawText
+        .split('\n')
+        .map(_preprocess)
+        .where((line) => line.isNotEmpty)
+        .take(8)
+        .join('\n')
+        .toUpperCase();
+    final stores = [...config.knownStores]
+      ..sort((a, b) => b.length.compareTo(a.length));
+    for (final store in stores) {
+      if (RegExp('\\b${RegExp.escape(store)}\\b').hasMatch(header)) {
+        return _canonicalStore(store);
+      }
+    }
+    return null;
+  }
+
+  static String _canonicalStore(String raw) {
+    const aliases = {
+      'AH': 'Albert Heijn',
+      'ALBERT HEIJN': 'Albert Heijn',
+      'JUMBO': 'Jumbo',
+      'LIDL': 'Lidl',
+      'KRUIDVAT': 'Kruidvat',
+      'ALDI': 'Aldi',
+      'PLUS': 'Plus',
+      'DIRK': 'Dirk',
+      'COOP': 'Coop',
+      'SPAR': 'SPAR',
+      'VOMAR': 'Vomar',
+      'EKOPLAZA': 'Ekoplaza',
+      'HOOGVLIET': 'Hoogvliet',
+      'ACTION': 'Action',
+      'ETOS': 'Etos',
+      'WORLD TOKO': 'World Toko',
+    };
+    return aliases[raw.toUpperCase()] ?? raw;
+  }
+
+  static double? _readAmountAfterKeyword(
+    List<String> lines,
+    ReceiptParseConfig config,
+    List<String> keywords, {
+    bool Function(String line)? skipIf,
+  }) {
+    for (var i = 0; i < lines.length; i++) {
+      final line = _stripTax(lines[i], config);
+      if (!config.matchesAny(line, keywords)) continue;
+      if (skipIf != null && skipIf(line)) continue;
+      final trailing = _trailingPrice(line, config);
+      if (trailing != null) return trailing;
+      if (i + 1 < lines.length) {
+        final next = tryParsePrice(_stripTax(lines[i + 1], config));
+        if (next != null) return next;
+      }
+    }
+    return null;
+  }
+
+  static _Line _classify(String raw, ReceiptParseConfig config) {
+    final line = _stripTax(raw, config);
+    if (_isIgnorable(line, config)) {
+      return _Line(kind: _Kind.skip, raw: line);
+    }
+    if (config.matchesAny(line, config.totalDiscountKeywords)) {
+      return _Line(
+        kind: _Kind.totalDiscount,
+        raw: line,
+        amount: _trailingPrice(line, config),
+      );
+    }
+    if (config.matchesAny(line, config.taxInclusiveTotalKeywords) ||
+        config.matchesAny(line, config.subtotalKeywords)) {
+      return _Line(kind: _Kind.skip, raw: line);
+    }
+    if (config.matchesAny(line, config.grandTotalKeywords)) {
+      return _Line(
+        kind: _Kind.grandTotal,
+        raw: line,
+        amount: _trailingPrice(line, config),
+      );
+    }
+
+    final qty = _parseQty(line, config);
+    if (qty != null) {
+      return _Line(kind: _Kind.quantity, raw: line, qty: qty);
+    }
+
+    final isDiscount =
+        config.matchesAny(line, config.discountKeywords) ||
+        config.negativeAmount.hasMatch(line);
+    if (isDiscount &&
+        (config.matchesAny(line, config.discountKeywords) ||
+            isPriceOnly(line))) {
+      return _Line(
+        kind: _Kind.discount,
+        raw: line,
+        name: line,
+        amount: _trailingPrice(line, config) ?? tryParsePrice(line),
+      );
+    }
+
+    if (isPriceOnly(line)) {
+      return _Line(
+        kind: _Kind.priceOnly,
+        raw: line,
+        amount: tryParsePrice(line),
+      );
+    }
+
+    final inline = config.quantityInline.firstMatch(line);
+    final trailing = _trailingPrice(line, config);
+    if (trailing != null) {
+      var name = line.replaceFirst(RegExp(r'\s+-?\d+[.,]\d{2}\s*$'), '').trim();
+      _Qty? inlineQty;
+      if (inline != null) {
+        name = line.substring(0, inline.start).trim();
+        final count = int.tryParse(inline.group(1)!);
+        final unit = tryParsePrice(inline.group(2)!);
+        if (count != null && unit != null) {
+          inlineQty = _Qty(count: count, unitPrice: unit, total: trailing);
+        }
+      }
+      if (name.isEmpty || _isIgnorable(name, config)) {
+        return _Line(kind: _Kind.skip, raw: line);
+      }
+      return _Line(
+        kind: _Kind.item,
+        raw: line,
+        name: name,
+        amount: trailing,
+        qty: inlineQty,
+      );
+    }
+
+    if (inline != null) {
+      final name = line.substring(0, inline.start).trim();
+      final count = int.tryParse(inline.group(1)!);
+      final unit = tryParsePrice(inline.group(2)!);
+      if (name.isNotEmpty && count != null && unit != null) {
+        return _Line(
+          kind: _Kind.item,
+          raw: line,
+          name: name,
+          amount: roundMoney(count * unit),
+          qty: _Qty(count: count, unitPrice: unit),
+        );
+      }
+    }
+
+    return _Line(kind: _Kind.nameOnly, raw: line, name: line);
+  }
+
+  static bool _isIgnorable(String line, ReceiptParseConfig config) {
+    if (config.separatorPattern.hasMatch(line)) return true;
+    if (_urlPattern.hasMatch(line)) return true;
+    if (_postalPattern.hasMatch(line)) return true;
+    if (_phonePattern.hasMatch(line.replaceAll(RegExp(r'\s'), ''))) {
+      return true;
+    }
+    if (_streetPattern.hasMatch(line)) return true;
+    if (config.categoryRow.hasMatch(line)) return true;
+    if (config.isStandaloneKeywordLine(line, config.columnHeaderKeywords)) {
+      return true;
+    }
+    if (config.isStandaloneKeywordLine(line, config.itemCountKeywords)) {
+      return true;
+    }
+    if (config.matchesAny(line, config.taxKeywords)) return true;
+    if (config.matchesAny(line, config.paymentKeywords)) return true;
+    if (config.matchesAny(line, config.noiseKeywords)) return true;
+    return false;
+  }
+
+  static double? _trailingPrice(String line, ReceiptParseConfig config) {
+    final match = RegExp(r'(-?\d+[.,]\d{2})\s*$').firstMatch(line);
+    if (match == null) return null;
+    return tryParsePrice(match.group(1)!);
+  }
+
+  static _Qty? _parseQty(String line, ReceiptParseConfig config) {
+    final match =
+        _qtyWithTotal.firstMatch(line) ??
+        config.quantityStandalone.firstMatch(line);
+    if (match == null) return null;
+    final count = int.tryParse(match.group(1)!);
+    final unit = tryParsePrice(match.group(2)!);
+    if (count == null || count < 1 || unit == null) return null;
+    double? total;
+    if (match.groupCount >= 3) {
+      final raw = match.group(3);
+      if (raw != null && RegExp(r'^-?\d+[.,]\d{2}$').hasMatch(raw)) {
+        total = tryParsePrice(raw);
+      }
+    }
+    return _Qty(count: count, unitPrice: unit, total: total);
+  }
+}

lib/shop_detail_screen.dart

@@ -9,6 +9,7 @@ import 'models/line_item.dart';
 import 'models/shop.dart';
 import 'product_detail_screen.dart';
 import 'services/product_repository.dart';
+import 'services/receipt_capture.dart';
 import 'utils/dates.dart';
 import 'utils/money.dart';
 import 'widgets/confirm_dialog.dart';
@@ -37,6 +38,7 @@ class _ShopDetailScreenState extends State<ShopDetailScreen> {
   bool _editing = false;
   List<String> _tagSuggestions = [];
   int _loadToken = 0;
+  bool _addingReceipt = false;
 
   @override
   void initState() {
@@ -150,6 +152,42 @@ class _ShopDetailScreenState extends State<ShopDetailScreen> {
     }
   }
 
+  Future<void> _addFromReceipt() async {
+    final shop = _shop;
+    if (shop == null || _addingReceipt) return;
+    setState(() => _addingReceipt = true);
+    try {
+      final captured = await captureAndParseReceipt(context);
+      if (captured == null || !mounted) return;
+
+      var added = 0;
+      for (final item in captured.items) {
+        await widget.repository.addShopItem(shopId: shop.id, item: item);
+        added++;
+      }
+      if (!mounted) return;
+      await _load();
+      if (!mounted) return;
+      ScaffoldMessenger.of(context).showSnackBar(
+        SnackBar(
+          content: Text(
+            added == 1
+                ? 'Added 1 item from receipt.'
+                : 'Added $added items from receipt.',
+          ),
+        ),
+      );
+    } catch (_) {
+      if (!mounted) return;
+      ScaffoldMessenger.of(context).showSnackBar(
+        const SnackBar(content: Text('Could not add items from this receipt.')),
+      );
+      _load();
+    } finally {
+      if (mounted) setState(() => _addingReceipt = false);
+    }
+  }
+
   Future<void> _editItem(ShopItem item) async {
     final result = await showItemEditSheet(
       context,
@@ -299,11 +337,41 @@ class _ShopDetailScreenState extends State<ShopDetailScreen> {
           ),
         ],
       ),
+      floatingActionButtonLocation: FloatingActionButtonLocation.centerFloat,
       floatingActionButton: _editing
-          ? FloatingActionButton.extended(
-              onPressed: _addItem,
+          ? Padding(
+              padding: const EdgeInsets.symmetric(horizontal: 16),
+              child: Row(
+                children: [
+                  Expanded(
+                    child: FilledButton.tonalIcon(
+                      onPressed: _addingReceipt ? null : _addFromReceipt,
+                      icon: _addingReceipt
+                          ? const SizedBox(
+                              width: 18,
+                              height: 18,
+                              child: CircularProgressIndicator(strokeWidth: 2),
+                            )
+                          : const Icon(Icons.receipt_long_outlined),
+                      label: const Text('Add receipt'),
+                      style: FilledButton.styleFrom(
+                        minimumSize: const Size.fromHeight(52),
+                      ),
+                    ),
+                  ),
+                  const SizedBox(width: 12),
+                  Expanded(
+                    child: FilledButton.icon(
+                      onPressed: _addingReceipt ? null : _addItem,
                       icon: const Icon(Icons.add),
                       label: const Text('Add product'),
+                      style: FilledButton.styleFrom(
+                        minimumSize: const Size.fromHeight(52),
+                      ),
+                    ),
+                  ),
+                ],
+              ),
             )
           : null,
       body: Builder(

lib/widgets/item_edit_sheet.dart

@@ -170,6 +170,8 @@ class _ItemEditSheetState extends State<ItemEditSheet> {
         discount: widget.item?.price == roundMoney(resolvedTotal)
             ? widget.item?.discount ?? 0
             : 0,
+        sourceBounds: widget.item?.sourceBounds,
+        needsManualReview: false,
       ),
     );
   }

lib/widgets/receipt_highlight_overlay.dart

@@ -0,0 +1,91 @@
+/// Overlays a highlight on the receipt photo for a parsed line item.
+library;
+
+import 'dart:io';
+
+import 'package:flutter/material.dart';
+
+import '../models/receipt_bounds.dart';
+
+class ReceiptHighlightOverlay extends StatelessWidget {
+  const ReceiptHighlightOverlay({
+    super.key,
+    required this.imagePath,
+    required this.bounds,
+    this.maxHeight = 280,
+  });
+
+  final String imagePath;
+  final ReceiptBounds bounds;
+  final double maxHeight;
+
+  @override
+  Widget build(BuildContext context) {
+    final scheme = Theme.of(context).colorScheme;
+    return ClipRRect(
+      borderRadius: BorderRadius.circular(12),
+      child: LayoutBuilder(
+        builder: (context, constraints) {
+          return Stack(
+            fit: StackFit.passthrough,
+            children: [
+              Image.file(
+                File(imagePath),
+                fit: BoxFit.contain,
+                height: maxHeight,
+                width: constraints.maxWidth,
+              ),
+              Positioned.fill(
+                child: CustomPaint(
+                  painter: _BoundsPainter(
+                    bounds: bounds,
+                    color: scheme.primary.withValues(alpha: 0.35),
+                    stroke: scheme.primary,
+                  ),
+                ),
+              ),
+            ],
+          );
+        },
+      ),
+    );
+  }
+}
+
+class _BoundsPainter extends CustomPainter {
+  _BoundsPainter({
+    required this.bounds,
+    required this.color,
+    required this.stroke,
+  });
+
+  final ReceiptBounds bounds;
+  final Color color;
+  final Color stroke;
+
+  @override
+  void paint(Canvas canvas, Size size) {
+    if (bounds.isEmpty) return;
+    final rect = Rect.fromLTRB(
+      bounds.left * size.width,
+      bounds.top * size.height,
+      bounds.right * size.width,
+      bounds.bottom * size.height,
+    );
+    canvas.drawRect(rect, Paint()..color = color);
+    canvas.drawRect(
+      rect,
+      Paint()
+        ..color = stroke
+        ..style = PaintingStyle.stroke
+        ..strokeWidth = 2,
+    );
+  }
+
+  @override
+  bool shouldRepaint(covariant _BoundsPainter oldDelegate) {
+    return oldDelegate.bounds != bounds ||
+        oldDelegate.color != color ||
+        oldDelegate.stroke != stroke;
+  }
+}

receipt-parsing-keywords.json

@@ -182,5 +182,11 @@
       "ART.",
       "ARTIKELEN"
     ]
+  },
+
+  "spatial_parsing": {
+    "_comment": "Bounding-box pipeline settings. row_cluster_height_factor multiplies median element height when grouping elements into rows (only used when ML Kit lines are unavailable — keep below 0.6 so adjacent receipt lines stay separate). price_column_width_fraction is the right-hand slice of receipt content width treated as the price column.",
+    "row_cluster_height_factor": 0.55,
+    "price_column_width_fraction": 0.25
   }
 }

receipt-parsing-spec.md

@@ -16,30 +16,53 @@ without assuming a single fixed format.
 
 ## 1. Input assumptions
 
-- Input is raw OCR text, one line per detected text line, in top-to-bottom
-  order as it appeared on the receipt.
+- Input is structured OCR from ML Kit: **blocks → lines → elements**, each
+  element carrying its own pixel bounding box (`left`, `top`, `right`,
+  `bottom`) on the receipt image. Do **not** rely on the flattened `.text`
+  property for parsing — it discards the two-column layout.
 - Prices use European format: comma as decimal separator (e.g. `2,89`),
   period as thousands separator if present (rare on receipts this size).
 - OCR may introduce noise: misread characters, extra/missing spaces,
   occasional dropped or merged lines. The parser should be tolerant of
   minor spacing irregularities but does not need to do spell-correction.
+- Receipt photos vary in resolution and crop; all column thresholds must be
+  computed **relative to the detected content width**, not as fixed pixels.
 
 ## 2. Preprocessing (run before classification)
 
-1. Trim leading/trailing whitespace on every line; collapse multiple
-   internal spaces to one.
-2. Normalize decimal separators: treat `,` as the decimal point in any
-   number matching `\d+[,.]\d{2}`. Convert to a standard `.` internally
-   for numeric storage, but remember the original format was comma-based
-   (useful for locale-aware re-parsing if needed).
-3. Drop fully empty lines.
-4. Do NOT drop short lines outright (e.g. a lone `BROCCOLI` or a lone
+1. Extract every text **element** with its bounding box from ML Kit.
+2. **Rebuild rows** — do not trust ML Kit's line segmentation:
+   - Sort elements by Y-center (top to bottom).
+   - Cluster into rows where Y-centers fall within one line height of each
+     other. Threshold = `median_element_height × row_cluster_height_factor`
+     (default factor **1.2**, configurable in `spatial_parsing`).
+   - Within each row, sort elements left-to-right by X position.
+3. Join element text within a row (single spaces) for keyword/regex checks.
+4. Trim leading/trailing whitespace; collapse multiple internal spaces to one.
+5. Normalize decimal separators: treat `,` as the decimal point in any number
+   matching `\d+[,.]\d{2}`. Convert to `.` internally for storage.
+6. Do NOT drop short rows outright (e.g. a lone `BROCCOLI` or a lone
    `2 X 0,95`) — both are meaningful in different receipt layouts.
 
-## 3. Core line classification
+## 3. Core row classification
 
-Classify every line into one of these categories, in this priority order
-(check top-down, first match wins):
+Classify every **row** (not flat OCR line) into one of these categories.
+Within a row, use **X-position column logic** alongside regex:
+
+- Compute content width = rightmost − leftmost element across the receipt.
+- **Price column** = rightmost `price_column_width_fraction` (default **25%**)
+  of that width. A row has a price when a token in the price column matches
+  `\d+[,.]\d{2}`. Everything left of the price column is the candidate name.
+- A row with no price-column match is **name-only**.
+
+Check categories in this priority order (first match wins):
+
+### 3.0 QUANTITY_MODIFIER (checked first — unconditional)
+
+- If the **entire row** matches (not a substring):
+  `^\d+\s*[xX]\s*\d+[,.]\d{2}\s*(PER\s+STUK|PER\s+KG|ST\.?|STUKS?)?$`
+- Classify as QUANTITY_MODIFIER **unconditionally**. A pure `N X price` row
+  can never be a standalone product, even if a price-column token is present.
 
 ### 3.1 STORE_HEADER
 - The first 1–5 lines of the receipt, before the first recognizable
@@ -72,13 +95,13 @@ Classify every line into one of these categories, in this priority order
 - This is the "complete" case: name + price on the same line, quantity
   of 1 implied unless a QUANTITY_MODIFIER line follows (section 3.4).
 
-### 3.4 QUANTITY_MODIFIER (sub-line, belongs to previous or next ITEM)
-- A line matching the pattern: `<int> X <price>` optionally followed by
-  a unit word (e.g. `PER STUK`), e.g.:
-  - `2 X 2,79`
-  - `2 X 3,99 PER STUK`
-- This line does NOT introduce a new product — it modifies the item on
-  an adjacent line.
+### 3.4 QUANTITY_MODIFIER (sub-row, belongs to previous or next ITEM)
+
+See **§3.0** — pure `N X price` rows are detected before any other type.
+The rules below describe how they attach to items:
+
+- This row does NOT introduce a new product — it modifies the item on
+  an adjacent row.
 - Two observed variants — the parser must detect which applies:
   - **Variant A (Jumbo-style):** product name appears on its own line
     with NO price. The next line is `N X unit_price`. The line total
@@ -154,66 +177,71 @@ Classify every line into one of these categories, in this priority order
 
 ## 4. Item construction algorithm (pseudocode)
 
+Uses a **one-row lookahead buffer** — do not emit an item until the next
+row is inspected (or the receipt ends).
+
 ```
 items = []
 pending_item = None   # name found, price/qty not yet resolved
 
-for line in classified_lines:
-    if line.type == ITEM:
-        if pending_item:
-            items.append(pending_item)   # close out previous item first
-        pending_item = { name: line.name, unit_price: line.price,
-                          quantity: 1, line_total: line.price,
-                          discount: 0 }
-
-    elif line.type == QUANTITY_MODIFIER:
-        if pending_item and pending_item.unit_price is None:
-            # Variant A: name-only line was pending, this line completes it
-            pending_item.quantity = line.qty
-            pending_item.unit_price = line.price
-            pending_item.line_total = line.qty * line.price
-        elif pending_item:
-            # Variant B: name+price already set, this line refines/
-            # confirms it (overwrite quantity/unit price, recompute total)
-            pending_item.quantity = line.qty
-            pending_item.unit_price = line.price
-            pending_item.line_total = line.qty * line.price
-        else:
-            # Orphan quantity line with no preceding item — flag for
-            # manual review rather than silently dropping
-            flag_for_review(line)
-
-    elif line.type == DISCOUNT:
-        if pending_item:
-            pending_item.discount += line.amount   # amount is negative
-            pending_item.line_total += line.amount
-        else:
-            receipt.total_discount += line.amount
-
-    elif line.type in (SUBTOTAL, TOTAL):
+for row in classified_rows:
+    if row.type == QUANTITY_MODIFIER:
         if pending_item:
+            pending_item.quantity = row.qty
+            pending_item.unit_price = row.price
+            pending_item.line_total = row.qty * row.price
+            merge bounding boxes from row into pending_item
             items.append(pending_item)
             pending_item = None
-        if is_grand_total(line):
-            receipt.total = line.amount
-            break   # stop item parsing here
+        continue   # orphan modifier without pending → ignore
 
-# catch any trailing pending item if receipt ended oddly
-if pending_item:
-    items.append(pending_item)
+    if row.type == NAME_ONLY:
+        if pending_item:
+            items.append(pending_item with needs_review if no price)
+        pending_item = { name: row.name, unit_price: None, quantity: 1,
+                          line_total: None, discount: 0, bounds: row.bounds }
+        peek next row:
+            if next.type == QUANTITY_MODIFIER → defer emit (handled above)
+            else → append pending_item flagged needs_review, clear pending
+        continue
+
+    if row.type == ITEM:
+        if pending_item:
+            items.append(pending_item with needs_review if no price)
+        pending_item = { name: row.name, unit_price: row.price,
+                          quantity: 1, line_total: row.price,
+                          discount: 0, bounds: row.bounds }
+        peek next row:
+            if next.type == QUANTITY_MODIFIER → defer emit (modifier overrides qty/unit)
+            else → append pending_item, clear pending
+        continue
+
+    if row.type == DISCOUNT:
+        ... (unchanged: attach to pending_item or receipt.total_discount)
+
+    if row.type in (SUBTOTAL, TOTAL):
+        flush pending_item
+        if is_grand_total(row):
+            receipt.total = row.amount
+            break
+
+flush any trailing pending_item
 ```
 
+Each emitted item keeps **source bounding box(es)** (normalized 0–1 on the
+receipt image) for highlight overlays in the review UI.
+
 ## 5. Validation pass (do this after parsing, before showing results to user)
 
 1. Sum `line_total` across all parsed items.
 2. Add `receipt.total_discount` if it wasn't already folded into
    individual item discounts.
 3. Compare the result to `receipt.total` (the grand total line).
-4. If they match within 0.01 → high confidence, no flags needed.
-5. If they don't match → mark the WHOLE receipt as "needs review" and
-   surface it clearly in the review/edit screen (don't just flag
-   individual lines — a mismatch means something in the whole parse is
-   probably off, e.g. a missed line or a misclassified discount).
+4. If the receipt prints an item count (e.g. `Aantal Artikel: N`), compare
+   `N` to the number of parsed items.
+5. If totals match within 0.01 **and** item count matches (when present)
+   **and** no item is flagged `needs_manual_review` → high confidence.
+6. If any check fails → mark the **whole receipt** as "needs review".
 
 ## 6. Known store-specific quirks to encode as configurable rules
 

test/receipt_parser_test.dart

@@ -1,4 +1,5 @@
 import 'package:flutter_test/flutter_test.dart';
+import 'package:groci/models/ocr_element.dart';
 import 'package:groci/services/receipt_parser.dart';
 
 void main() {
@@ -15,6 +16,35 @@ CHANGE 1.50
     expect(items.map((item) => item.price), [1.50, 2.00]);
   });
 
+  test('parses name on one line and price on the next', () {
+    final items = ReceiptParser.parse('''
+MILK
+1,50
+BREAD
+2,00
+Totaal 3,50
+''');
+
+    expect(items, hasLength(2));
+    expect(items.map((item) => item.name), ['MILK', 'BREAD']);
+    expect(items.map((item) => item.price), [1.50, 2.00]);
+  });
+
+  test('pairs two name lines with two price lines from short column OCR', () {
+    final items = ReceiptParser.parse('''
+Jumbo
+MILK
+BREAD
+1,50
+2,00
+Totaal 3,50
+''');
+
+    expect(items, hasLength(2));
+    expect(items.map((item) => item.name), ['MILK', 'BREAD']);
+    expect(items.map((item) => item.price), [1.50, 2.00]);
+  });
+
   test('uses the next line when quantity and total are split', () {
     final items = ReceiptParser.parse('''
 EGGS
@@ -123,6 +153,72 @@ Bedr.Incl 2,09
     expect(items.last.price, 6.20);
     expect(items, hasLength(26));
   });
+
+  test('does not treat CHIPS as payment keyword CHIP', () {
+    final items = ReceiptParser.parse('''
+AH Protein
+AH Chips
+1,49
+0.69
+''');
+
+    expect(items, hasLength(2));
+    expect(items.map((item) => item.name), ['AH Protein', 'AH Chips']);
+    expect(items.map((item) => item.price), [1.49, 0.69]);
+  });
+
+  test('scan path uses column parser for Jumbo name-then-price OCR dump', () {
+    const ocr = '''
+BIO VASTKOKEND AARD
+2 X 1,99
+AARDBEIEN
+2 X 3,99
+ACTIE AARDBEIEN
+BROCCOLII
+PREI
+CITROENEN
+KOMKOMMER
+2 X 0,95
+ACTIE KOMKOMMER
+BOL KNOFLOOK
+BROODSTICKS OLIJF
+4 X 1.25
+3,98
+7,98
+-2,00
+1,24
+0,69
+2,11
+1,90
+-0,21
+1,79
+5,00
+''';
+
+    final result = ReceiptParser.parseReceiptFromOcr(
+      OcrDocument(
+        elements: const [],
+        lines: const [],
+        imageWidth: 800,
+        imageHeight: 1200,
+        flattenedText: ocr,
+      ),
+    );
+
+    expect(result.items, hasLength(8));
+    expect(result.items[0].name, 'BIO VASTKOKEND AARD');
+    expect(result.items[0].quantity, 2);
+    expect(result.items[0].price, 3.98);
+    expect(result.items[1].name, 'AARDBEIEN');
+    expect(result.items[1].price, 5.98);
+    expect(result.items[1].discount, -2.00);
+    expect(result.items[5].name, 'KOMKOMMER');
+    expect(result.items[5].price, 1.69);
+    expect(result.items.last.name, 'BROODSTICKS OLIJF');
+    expect(result.items.last.quantity, 4);
+    expect(result.items.last.price, 5.00);
+    expect(result.items.every((item) => !item.needsManualReview), isTrue);
+  });
 }
 
 const _jumboColumnOcr = '''

test/receipt_spatial_parser_test.dart

@@ -0,0 +1,195 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:groci/models/ocr_element.dart';
+import 'package:groci/services/receipt_parse_config.dart';
+import 'package:groci/services/receipt_parser.dart';
+import 'package:groci/services/receipt_row_builder.dart';
+import 'package:groci/services/receipt_spatial_parser.dart';
+
+/// Synthetic two-column receipt layout (800×1200 image).
+const _imageWidth = 800.0;
+const _imageHeight = 1200.0;
+const _nameLeft = 40.0;
+const _priceLeft = 620.0;
+const _rowHeight = 24.0;
+const _rowGap = 8.0;
+
+OcrElement _word(String text, double row, {bool price = false}) {
+  final y = row * (_rowHeight + _rowGap) + 100;
+  final left = price ? _priceLeft : _nameLeft;
+  final width = text.length * 10.0 + 20;
+  return OcrElement(
+    text: text,
+    left: left,
+    top: y,
+    right: left + width,
+    bottom: y + _rowHeight,
+  );
+}
+
+OcrLine _line(List<OcrElement> elements) {
+  var left = double.infinity;
+  var top = double.infinity;
+  var right = 0.0;
+  var bottom = 0.0;
+  for (final e in elements) {
+    if (e.left < left) left = e.left;
+    if (e.top < top) top = e.top;
+    if (e.right > right) right = e.right;
+    if (e.bottom > bottom) bottom = e.bottom;
+  }
+  return OcrLine(
+    text: elements.map((e) => e.text).join(' '),
+    elements: elements,
+    left: left,
+    top: top,
+    right: right,
+    bottom: bottom,
+  );
+}
+
+OcrDocument _document(
+  List<List<OcrElement>> rows, {
+  String? flattened,
+}) {
+  final elements = [for (final row in rows) ...row];
+  final lines = [for (final row in rows) _line(row)];
+  return OcrDocument(
+    elements: elements,
+    lines: lines,
+    imageWidth: _imageWidth,
+    imageHeight: _imageHeight,
+    flattenedText: flattened ?? lines.map((l) => l.text).join('\n'),
+  );
+}
+
+void main() {
+  setUpAll(() async {
+    await ReceiptParser.loadConfig();
+  });
+
+  group('ReceiptRowBuilder', () {
+    test('clusters name and price on the same row by Y position', () {
+      final rows = ReceiptRowBuilder(receiptParseConfig).buildRows(
+        _document([
+          [_word('MILK', 0), _word('1,50', 0, price: true)],
+        ]),
+      );
+
+      expect(rows, hasLength(1));
+      expect(rows.single.kind.name, 'item');
+      expect(rows.single.nameText, 'MILK');
+      expect(rows.single.price, 1.50);
+    });
+
+    test('classifies pure quantity row before item logic', () {
+      final rows = ReceiptRowBuilder(receiptParseConfig).buildRows(
+        _document([
+          [_word('2', 1), _word('X', 1), _word('2,99', 1, price: true)],
+        ], flattened: '2 X 2,99'),
+      );
+
+      expect(rows, hasLength(1));
+      expect(rows.single.kind.name, 'quantityModifier');
+      expect(rows.single.quantity, 2);
+      expect(rows.single.unitPrice, 2.99);
+    });
+
+    test('treats row without price-column token as name-only', () {
+      final rows = ReceiptRowBuilder(receiptParseConfig).buildRows(
+        _document([
+          [_word('BROCCOLI', 0)],
+        ]),
+      );
+
+      expect(rows.single.kind.name, 'nameOnly');
+      expect(rows.single.nameText, 'BROCCOLI');
+    });
+
+    test('does not merge adjacent ML Kit lines into one row', () {
+      final rows = ReceiptRowBuilder(receiptParseConfig).buildRows(
+        _document([
+          [_word('BIO', 0), _word('VASTKOKEND', 0), _word('AARD', 0)],
+          [_word('2', 1), _word('X', 1), _word('1,99', 1, price: true)],
+        ]),
+      );
+
+      expect(rows, hasLength(2));
+      expect(rows[0].nameText, contains('BIO'));
+      expect(rows[1].kind.name, 'quantityModifier');
+    });
+  });
+
+  group('ReceiptSpatialParser lookahead', () {
+    test('merges Jumbo-style name row with following quantity modifier', () {
+      final result = ReceiptSpatialParser.parse(
+        _document([
+          [_word('AARDBEIEN', 0)],
+          [_word('2', 1), _word('X', 1), _word('3,99', 1, price: true)],
+          [_word('Totaal', 2), _word('7,98', 2, price: true)],
+        ]),
+      );
+
+      expect(result.items, hasLength(1));
+      expect(result.items.single.name, 'AARDBEIEN');
+      expect(result.items.single.quantity, 2);
+      expect(result.items.single.unitPrice, 3.99);
+      expect(result.items.single.price, 7.98);
+      expect(result.items.single.sourceBounds, isNotNull);
+    });
+
+    test('overrides inline price when quantity modifier follows (Kruidvat)', () {
+      final result = ReceiptSpatialParser.parse(
+        _document([
+          [_word('ZEEPTABLET', 0), _word('NEUTRAL', 0), _word('7,98', 0, price: true)],
+          [_word('2', 1), _word('X', 1), _word('3,99', 1, price: true)],
+        ]),
+      );
+
+      expect(result.items, hasLength(1));
+      expect(result.items.single.quantity, 2);
+      expect(result.items.single.unitPrice, 3.99);
+      expect(result.items.single.price, 7.98);
+    });
+
+    test('flags name-only row without following modifier for manual review', () {
+      final result = ReceiptSpatialParser.parse(
+        _document([
+          [_word('MILK', 0)],
+          [_word('BREAD', 1), _word('2,00', 1, price: true)],
+        ]),
+      );
+
+      expect(result.items, hasLength(2));
+      expect(result.items[0].name, 'MILK');
+      expect(result.items[0].needsManualReview, isTrue);
+      expect(result.items[1].name, 'BREAD');
+      expect(result.items[1].price, 2.00);
+    });
+
+    test('parses two side-by-side items without cross-assigning prices', () {
+      final result = ReceiptSpatialParser.parse(
+        _document([
+          [_word('MILK', 0), _word('1,50', 0, price: true)],
+          [_word('BREAD', 1), _word('2,00', 1, price: true)],
+          [_word('Totaal', 2), _word('3,50', 2, price: true)],
+        ]),
+      );
+
+      expect(result.items.map((i) => i.name), ['MILK', 'BREAD']);
+      expect(result.items.map((i) => i.price), [1.50, 2.00]);
+      expect(result.validationPassed, isTrue);
+    });
+
+    test('fails validation when printed item count does not match', () {
+      final result = ReceiptSpatialParser.parse(
+        _document([
+          [_word('MILK', 0), _word('1,50', 0, price: true)],
+          [_word('Aantal Artikel: 3', 1)],
+        ]),
+      );
+
+      expect(result.expectedItemCount, 3);
+      expect(result.validationPassed, isFalse);
+    });
+  });
+}