added categories, import export, settings

lib/review_screen.dart

@@ -1,12 +1,15 @@
-/// Editable list of parsed receipt lines before they are saved as products.
+/// Editable list of parsed receipt lines before they are saved as a shop trip.
 library;
 
 import 'package:flutter/material.dart';
 
 import 'models/line_item.dart';
-import 'products_screen.dart';
+import 'services/app_settings.dart';
 import 'services/product_repository.dart';
+import 'utils/dates.dart';
 import 'utils/money.dart';
+import 'utils/supermarkets.dart';
+import 'widgets/store_tag.dart';
 
 class ReviewScreen extends StatefulWidget {
   const ReviewScreen({
@@ -14,11 +17,15 @@ class ReviewScreen extends StatefulWidget {
     required this.items,
     required this.rawText,
     required this.repository,
+    this.imagePath,
+    this.supermarketNames = kSupermarkets,
   });
 
   final List<LineItem> items;
   final String rawText;
   final ProductRepository repository;
+  final String? imagePath;
+  final List<String> supermarketNames;
 
   @override
   State<ReviewScreen> createState() => _ReviewScreenState();
@@ -26,12 +33,33 @@ class ReviewScreen extends StatefulWidget {
 
 class _ReviewScreenState extends State<ReviewScreen> {
   late List<LineItem> _items;
+  late DateTime _shoppedAt;
+  String? _supermarket;
+  String? _customStore;
   bool _saving = false;
 
   @override
   void initState() {
     super.initState();
     _items = List<LineItem>.from(widget.items);
+    _shoppedAt = DateTime.now();
+    final detected = detectSupermarket(
+      widget.rawText,
+      names: widget.supermarketNames,
+    );
+    if (detected != null) {
+      _supermarket = detected;
+    }
+  }
+
+  String? get _resolvedSupermarket {
+    if (_supermarket == null) return null;
+    if (_supermarket == kOtherSupermarket) {
+      final custom = _customStore?.trim();
+      if (custom == null || custom.isEmpty) return null;
+      return custom;
+    }
+    return _supermarket;
   }
 
   Future<void> _edit({LineItem? existing}) async {
@@ -55,25 +83,47 @@ class _ReviewScreenState extends State<ReviewScreen> {
     });
   }
 
+  Future<void> _pickDate() async {
+    final picked = await showDatePicker(
+      context: context,
+      initialDate: _shoppedAt,
+      firstDate: DateTime(2018),
+      lastDate: DateTime.now().add(const Duration(days: 1)),
+    );
+    if (picked == null || !mounted) return;
+    setState(() => _shoppedAt = picked);
+  }
+
   Future<void> _confirm() async {
+    final supermarket = _resolvedSupermarket;
+    if (supermarket == null) {
+      ScaffoldMessenger.of(context).showSnackBar(
+        const SnackBar(content: Text('Select a supermarket.')),
+      );
+      return;
+    }
+    if (_items.isEmpty) {
+      ScaffoldMessenger.of(context).showSnackBar(
+        const SnackBar(content: Text('Add at least one product.')),
+      );
+      return;
+    }
+
     setState(() => _saving = true);
     try {
-      await widget.repository.upsertItems(_items);
-      if (!mounted) return;
-      Navigator.of(context).pushAndRemoveUntil(
-        MaterialPageRoute<void>(
-          builder: (_) => ProductsScreen(
-            repository: widget.repository,
-            savedCount: _items.length,
-          ),
-        ),
-        (route) => route.isFirst,
+      await widget.repository.saveShop(
+        supermarket: supermarket,
+        shoppedAt: _shoppedAt,
+        items: _items,
+        receiptImagePath: widget.imagePath,
       );
+      if (!mounted) return;
+      Navigator.of(context).pop(true);
     } catch (_) {
       if (!mounted) return;
       setState(() => _saving = false);
       ScaffoldMessenger.of(context).showSnackBar(
-        const SnackBar(content: Text('Could not save products.')),
+        const SnackBar(content: Text('Could not save this shopping trip.')),
       );
     }
   }
@@ -81,11 +131,69 @@ class _ReviewScreenState extends State<ReviewScreen> {
   @override
   Widget build(BuildContext context) {
     final theme = Theme.of(context);
+    final total = _items.fold<double>(0, (sum, item) => sum + item.price);
+    final settings = SettingsScope.maybeOf(context);
+    final stores = settings?.supermarkets ?? kDefaultSupermarkets;
+    final names = [
+      ...{...widget.supermarketNames, ...stores.map((s) => s.name)},
+    ];
+    if (_supermarket != null && !names.contains(_supermarket)) {
+      names.add(_supermarket!);
+    }
 
     return Scaffold(
       appBar: AppBar(title: const Text('Review items')),
       body: Column(
         children: [
+          Padding(
+            padding: const EdgeInsets.fromLTRB(16, 8, 16, 0),
+            child: Column(
+              crossAxisAlignment: CrossAxisAlignment.stretch,
+              children: [
+                DropdownButtonFormField<String>(
+                  key: ValueKey(_supermarket),
+                  initialValue: _supermarket,
+                  hint: const Text('Select supermarket'),
+                  decoration: const InputDecoration(
+                    labelText: 'Supermarket',
+                  ),
+                  items: [
+                    for (final store in names)
+                      DropdownMenuItem(
+                        value: store,
+                        child: StoreTag(
+                          name: store,
+                          stores: stores,
+                          compact: true,
+                        ),
+                      ),
+                  ],
+                  onChanged: _saving
+                      ? null
+                      : (value) => setState(() => _supermarket = value),
+                ),
+                if (_supermarket == kOtherSupermarket) ...[
+                  const SizedBox(height: 12),
+                  TextField(
+                    enabled: !_saving,
+                    textCapitalization: TextCapitalization.words,
+                    decoration: const InputDecoration(
+                      labelText: 'Store name',
+                    ),
+                    onChanged: (value) => _customStore = value,
+                  ),
+                ],
+                const SizedBox(height: 8),
+                ListTile(
+                  contentPadding: EdgeInsets.zero,
+                  leading: const Icon(Icons.calendar_today_outlined),
+                  title: Text(formatDate(_shoppedAt)),
+                  subtitle: const Text('Shopping date'),
+                  onTap: _saving ? null : _pickDate,
+                ),
+              ],
+            ),
+          ),
           Expanded(
             child: _items.isEmpty
                 ? Center(
@@ -166,7 +274,9 @@ class _ReviewScreenState extends State<ReviewScreen> {
                   FilledButton(
                     onPressed: _saving ? null : _confirm,
                     child: Text(
-                      _saving ? 'Saving…' : 'Confirm',
+                      _saving
+                          ? 'Saving…'
+                          : 'Save trip · ${formatEuro(total)}',
                     ),
                   ),
                 ],