scan to list working fine

2026-08-29 11:23:24 +02:00
parent 2d8fc46a30
commit 2a5a922aab
13 changed files with 1233 additions and 8 deletions
@@ -0,0 +1,93 @@
+/// Local SQLite store of confirmed products.
+library;
+
+import 'package:path/path.dart' as p;
+import 'package:path_provider/path_provider.dart';
+import 'package:sqflite/sqflite.dart';
+
+import '../models/line_item.dart';
+import '../models/product.dart';
+
+class ProductRepository {
+  Database? _db;
+
+  Future<Database> get _database async {
+    _db ??= await _open();
+    return _db!;
+  }
+
+  Future<Database> _open() async {
+    final dir = await getApplicationDocumentsDirectory();
+    return openDatabase(
+      p.join(dir.path, 'receipity.db'),
+      version: 1,
+      onCreate: (db, version) async {
+        await db.execute('''
+          CREATE TABLE products (
+            id INTEGER PRIMARY KEY AUTOINCREMENT,
+            name TEXT NOT NULL,
+            normalized_name TEXT NOT NULL UNIQUE,
+            last_price REAL NOT NULL,
+            times_seen INTEGER NOT NULL DEFAULT 1,
+            created_at TEXT NOT NULL,
+            updated_at TEXT NOT NULL
+          )
+        ''');
+      },
+    );
+  }
+
+  static String normalizeName(String name) =>
+      name.trim().toUpperCase().replaceAll(RegExp(r'\s+'), ' ');
+
+  Future<void> upsertItems(List<LineItem> items) async {
+    final db = await _database;
+    final now = DateTime.now().toIso8601String();
+
+    await db.transaction((txn) async {
+      for (final item in items) {
+        final key = normalizeName(item.name);
+        if (key.isEmpty) continue;
+
+        final existing = await txn.query(
+          'products',
+          where: 'normalized_name = ?',
+          whereArgs: [key],
+          limit: 1,
+        );
+
+        if (existing.isEmpty) {
+          await txn.insert('products', {
+            'name': item.name.trim(),
+            'normalized_name': key,
+            'last_price': item.price,
+            'times_seen': 1,
+            'created_at': now,
+            'updated_at': now,
+          });
+        } else {
+          await txn.update(
+            'products',
+            {
+              'name': item.name.trim(),
+              'last_price': item.price,
+              'times_seen': (existing.first['times_seen']! as int) + 1,
+              'updated_at': now,
+            },
+            where: 'id = ?',
+            whereArgs: [existing.first['id']],
+          );
+        }
+      }
+    });
+  }
+
+  Future<List<Product>> getAll() async {
+    final db = await _database;
+    final rows = await db.query(
+      'products',
+      orderBy: 'name COLLATE NOCASE ASC',
+    );
+    return rows.map(Product.fromMap).toList();
+  }
+}