scan products

mobile/android/app/src/main/AndroidManifest.xml

@@ -42,4 +42,5 @@
             <data android:mimeType="text/plain"/>
         </intent>
     </queries>
+    <uses-permission android:name="android.permission.CAMERA"/>
 </manifest>

mobile/lib/pages/cart_page.dart

@@ -1,6 +1,11 @@
+import 'package:barcode_scan2/model/android_options.dart';
+import 'package:barcode_scan2/model/scan_options.dart';
+import 'package:barcode_scan2/platform_wrapper.dart';
 import 'package:flutter/material.dart';
 import 'package:mobile/pages/finish_shopping_page.dart';
 import 'package:mobile/repos/cart.dart';
+import 'package:mobile/repos/product.dart';
+import 'package:mobile/results.dart';
 import 'package:mobile/widgets/primary_button.dart';
 import 'package:mobile/widgets/primary_card.dart';
 import 'package:provider/provider.dart';
@@ -181,7 +186,68 @@ class CartPage extends StatelessWidget {
                       child: Container(
                         margin: const EdgeInsets.only(left: 10),
                         child: PrimaryButton(
-                            onPressed: () {}, child: const Text("Skan vare")),
+                            onPressed: () async {
+                              final result = await BarcodeScanner.scan(
+                                  options: const ScanOptions(
+                                      android: AndroidOptions(
+                                          appBarTitle: "Skan varer"),
+                                      strings: {
+                                    "cancel": "Annullér",
+                                    "flash_on": "Lommelygte til",
+                                    "flash_off": "Lommelygte fra"
+                                  }));
+                              switch (result.type.name) {
+                                case "Cancelled":
+                                  final snackBar = const SnackBar(
+                                      content:
+                                          Text("Skanning af varer annulleret"));
+                                  if (context.mounted) {
+                                    ScaffoldMessenger.of(context)
+                                        .showSnackBar(snackBar);
+                                  }
+                                case "Barcode":
+                                  if (!context.mounted) {
+                                    return;
+                                  }
+                                  final CartRepo cartRepo =
+                                      context.read<CartRepo>();
+                                  final ProductRepo productRepo =
+                                      context.read<ProductRepo>();
+                                  final productResult = productRepo
+                                      .productWithBarcode(result.rawContent);
+                                  switch (productResult) {
+                                    case Ok<Product, String>():
+                                      {
+                                        cartRepo.addToCart(productResult.value);
+                                        final snackBar = SnackBar(
+                                            content: Text(
+                                                "Tilføjet ${productResult.value.name} til indkøbskurven"));
+                                        ScaffoldMessenger.of(context)
+                                            .showSnackBar(snackBar);
+                                      }
+                                    case Err<Product, String>():
+                                      final snackBar = const SnackBar(
+                                          content: Text(
+                                              "Varen du prøver at tilføje eksistere ikke"));
+                                      ScaffoldMessenger.of(context)
+                                          .showSnackBar(snackBar);
+                                  }
+
+                                case "Error":
+                                  if (!context.mounted) {
+                                    return;
+                                  }
+                                  final snackBar = const SnackBar(
+                                      content:
+                                          Text("Der skete en fejl, prøv igen"));
+                                  ScaffoldMessenger.of(context)
+                                      .showSnackBar(snackBar);
+
+                                default:
+                                  throw Exception("Unreachable");
+                              }
+                            },
+                            child: const Text("Skan vare")),
                       ),
                     ),
                   ],

mobile/lib/repos/product.dart

@@ -1,4 +1,5 @@
 import 'package:flutter/material.dart';
+import 'package:mobile/results.dart';
 
 class ProductRepo extends ChangeNotifier {
   int _nextId = 0;
@@ -33,6 +34,15 @@ class ProductRepo extends ChangeNotifier {
     notifyListeners();
   }
 
+  Result<Product, String> productWithBarcode(String barcode) {
+    for (var i = 0; i < products.length; i++) {
+      if (products[i].barcode == barcode) {
+        return Ok(products[i]);
+      }
+    }
+    return Err("Product with barcode $barcode doesn't exist");
+  }
+
   void _addAllProducts() {
     products = [
       Product(
@@ -76,6 +86,12 @@ class ProductRepo extends ChangeNotifier {
           name: "Jägermeister 750 ml",
           price: 60,
           description: ""),
+      Product(
+          id: _nextId++,
+          barcode: "5711953068881",
+          name: "Protein Chokoladedrik",
+          price: 15,
+          description: "Arla's protein chokolade drik der giver store muskler"),
     ];
   }
 }
@@ -93,11 +109,13 @@ class Product {
   final String description;
   final int price;
   final Coordinate? location;
+  final String? barcode;
 
   Product(
       {required this.id,
       required this.name,
       required this.price,
       required this.description,
-      this.location});
+      this.location,
+      this.barcode});
 }

mobile/pubspec.lock

@@ -9,6 +9,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.11.0"
+  barcode_scan2:
+    dependency: "direct main"
+    description:
+      name: barcode_scan2
+      sha256: ee34fad7148248f4450652909f5188ad95c9b6f512e75088e96bc3e96ff2e9eb
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.4.0"
   boolean_selector:
     dependency: transitive
     description:
@@ -57,6 +65,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.3.1"
+  fixnum:
+    dependency: transitive
+    description:
+      name: fixnum
+      sha256: b6dc7065e46c974bc7c5f143080a6764ec7a4be6da1285ececdc37be96de53be
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.1.1"
   flutter:
     dependency: "direct main"
     description: flutter
@@ -147,6 +163,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.9.0"
+  protobuf:
+    dependency: transitive
+    description:
+      name: protobuf
+      sha256: "68645b24e0716782e58948f8467fd42a880f255096a821f9e7d0ec625b00c84d"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.1.0"
   provider:
     dependency: "direct main"
     description:

mobile/pubspec.yaml

@@ -35,6 +35,7 @@ dependencies:
   # Use with the CupertinoIcons class for iOS style icons.
   cupertino_icons: ^1.0.8
   provider: ^6.1.2
+  barcode_scan2: ^4.4.0
 
 dev_dependencies:
   flutter_test: