added random string generator to create challenge to stamp ticket and…

… its implementation in repository.dart remote_data_store.dart owner_view_view_model.dart mobile_scanner.dart
Raviramnani1 · Aug 28, 2024 · ff2566b · ff2566b
1 parent 955f961
commit ff2566b
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Showing 6 changed files with 94 additions and 15 deletions.
diff --git a/wallet/lib/pages/detailed_asset_view/owner_view_view_model.dart b/wallet/lib/pages/detailed_asset_view/owner_view_view_model.dart
@@ -518,11 +518,17 @@ class OwnerViewViewModel extends ChangeNotifier {
     }
   }
 
-  Future<void> stampTicket({required bool enabled}) async {
+  Future<void> stampTicket({
+    required bool enabled,
+    required String cookbookId,
+    required String recipeId,
+    required String challenge,
+  }) async {
     final response = await repository.stampTicket(
-      cookBookId: CookbookId(events.cookbookID),
-      recipeId: RecipeId(events.recipeID),
+      cookBookId: CookbookId(cookbookId),
+      recipeId: RecipeId(recipeId),
       creatorAddress: Address(events.ownerAddress),
+      challenge: challenge,
     );
 
     if (response.isLeft()) {
@@ -533,6 +539,7 @@ class OwnerViewViewModel extends ChangeNotifier {
     notifyListeners();
   }
 
+
   void logEvent() {
     repository.logUserJourney(screenName: AnalyticsScreenEvents.ownerView);
   }

diff --git a/wallet/lib/pages/events/event_qr_code_screen.dart b/wallet/lib/pages/events/event_qr_code_screen.dart
@@ -12,7 +12,6 @@ import 'package:pylons_wallet/model/event.dart';
 import 'package:pylons_wallet/pages/detailed_asset_view/widgets/nft_image_asset.dart';
 import 'package:pylons_wallet/utils/constants.dart';
 import 'package:qr_flutter/qr_flutter.dart';
-import 'package:pylons_wallet/utils/extension.dart';
 
 import '../../providers/account_provider.dart';
 
@@ -29,7 +28,7 @@ class EventQrCodeScreen extends StatefulWidget {
 }
 
 class _EventQrCodeScreenState extends State<EventQrCodeScreen> {
-  String link = "";
+  String qrdata = "";
   GlobalKey renderObjectKey = GlobalKey();
 
 
@@ -48,7 +47,10 @@ class _EventQrCodeScreenState extends State<EventQrCodeScreen> {
     if (wallet == null) {
       return;
     }
-    link = widget.events.recipeID;
+    qrdata = jsonEncode({
+      'cookbookId': widget.events.cookbookID,
+      'recipeId': widget.events.recipeID,
+    });
   }
 
     @override
@@ -83,7 +85,7 @@ class _EventQrCodeScreenState extends State<EventQrCodeScreen> {
                   key: renderObjectKey,
                   child: QrImageView(
                     padding: EdgeInsets.zero,
-                    data: link,
+                    data: qrdata,
                     size: 200,
                     dataModuleStyle: const QrDataModuleStyle(
                         color: AppColors.kWhite),

diff --git a/wallet/lib/pages/events/mobile_scanner.dart b/wallet/lib/pages/events/mobile_scanner.dart
@@ -2,6 +2,7 @@ import 'package:flutter/material.dart';
 import 'package:get_it/get_it.dart';
 import 'package:mobile_scanner/mobile_scanner.dart';
 
+import '../../utils/string_utils.dart';
 import '../detailed_asset_view/owner_view_view_model.dart';
 
 class MobileQrScanner extends StatefulWidget {
@@ -39,22 +40,39 @@ class _MobileQrScannerState extends State<MobileQrScanner> {
         _barcode = barcodes.barcodes.firstOrNull;
 
         if (_barcode != null) {
+          final qrData = _barcode!.displayValue ?? '';
+          final dataParts = qrData.split(',');
 
-          final String eventId = _barcode!.displayValue ?? '';
+          if (dataParts.length >= 2) {
+            final cookbookId = dataParts[0];
+            final recipeId = dataParts[1];
 
-          // Use the QR code data to stamp the ticket
-          _stampTicket(eventId);
+
+            final challenge = StringUtils.generateRandomString(16);
+
+
+            stampTicket(cookbookId, recipeId, challenge);
+          } else {
+            ScaffoldMessenger.of(context).showSnackBar(
+              const SnackBar(content: Text('Invalid QR code data.')),
+            );
+          }
         }
       });
     }
   }
 
-  Future<void> stampTicket(String eventId) async {
+  Future<void> stampTicket(String cookbookId, String recipeId, String challenge) async {
     try {
+      await ownerViewViewModel.stampTicket(
+        enabled: true,
+        cookbookId: cookbookId,
+        recipeId: recipeId,
+        challenge: challenge,
+      );
 
-      await ownerViewViewModel.stampTicket(enabled: true);
       ScaffoldMessenger.of(context).showSnackBar(
-        SnackBar(content: Text('Ticket $eventId stamped successfully!')),
+        SnackBar(content: Text('Ticket with challenge $challenge stamped successfully!')),
       );
     } catch (e) {
       ScaffoldMessenger.of(context).showSnackBar(
@@ -63,6 +81,7 @@ class _MobileQrScannerState extends State<MobileQrScanner> {
     }
   }
 
+
   @override
   Widget build(BuildContext context) {
     return Scaffold(

diff --git a/wallet/lib/services/data_stores/remote_data_store.dart b/wallet/lib/services/data_stores/remote_data_store.dart
@@ -361,6 +361,13 @@ abstract class RemoteDataStore {
   /// Input : [address] the address & [Event] against which the invite link to be generated
   /// Output: [String] return the generated dynamic link else will throw error
   Future<String> createDynamicLinkForRecipeEventShare({required String address, required Events events});
+
+  Future<String> stampTicket({
+    required CookbookId cookBookId,
+    required RecipeId recipeId,
+    required Address creatorAddress,
+    required String challenge,
+  });
 }
 
 class RemoteDataStoreImp implements RemoteDataStore {
@@ -1305,25 +1312,31 @@ class RemoteDataStoreImp implements RemoteDataStore {
     return _signAndBroadcast(msgUpdateRecipe);
   }
 
+  @override
   Future<String> stampTicket({
     required CookbookId cookBookId,
     required RecipeId recipeId,
     required Address creatorAddress,
+    required String challenge,
   }) async {
     final recipe = await getRecipe(cookBookId: cookBookId, recipeId: recipeId);
 
     final recipeProto3Json = recipe.toProto3Json()! as Map;
     recipeProto3Json.remove(kCreatedAtCamelCase);
     recipeProto3Json.remove(kUpdatedAtCamelCase);
-    recipeProto3Json.putIfAbsent("isStamped", true as Function());
+    recipeProto3Json.putIfAbsent("isStamped", () => true);
 
-    final msgUpdateRecipe = pylons.MsgUpdateRecipe.create()..mergeFromProto3Json(recipeProto3Json);
+    final msgUpdateRecipe = pylons.MsgUpdateRecipe.create()
+      ..mergeFromProto3Json(recipeProto3Json);
+
+    msgUpdateRecipe.extraInfo = challenge;
     msgUpdateRecipe.version = msgUpdateRecipe.version.incrementRecipeVersion();
     msgUpdateRecipe.creator = creatorAddress.toString();
 
     return _signAndBroadcast(msgUpdateRecipe);
   }
 
+
   @override
   Future<String> createDynamicLinkForItemNftShare({
     required String address,

diff --git a/wallet/lib/services/repository/repository.dart b/wallet/lib/services/repository/repository.dart
@@ -581,6 +581,7 @@ abstract class Repository {
     required CookbookId cookBookId,
     required RecipeId recipeId,
     required Address creatorAddress,
+    required String challenge,
   });
 
   Future<Either<Failure, void>> createTrade({required pylons.MsgCreateTrade msgCreateTrade});
@@ -2428,6 +2429,28 @@ class RepositoryImp implements Repository {
     }
   }
 
+  @override
+  Future<Either<Failure, void>> stampTicket({
+    required CookbookId cookBookId,
+    required RecipeId recipeId,
+    required Address creatorAddress,
+    required String challenge,
+  }) async {
+    try {
+      await remoteDataStore.stampTicket(
+        cookBookId: cookBookId,
+        recipeId: recipeId,
+        creatorAddress: creatorAddress,
+        challenge: challenge,
+      );
+      return const Right(null);
+    } on Exception catch (e) {
+      recordErrorInCrashlytics(e);
+      return Left(ServerFailure(e.toString()));
+    }
+  }
+
+
   @override
   Future<Either<Failure, void>> createTrade({required pylons.MsgCreateTrade msgCreateTrade}) async {
     try {

diff --git a/wallet/lib/utils/string_utils.dart b/wallet/lib/utils/string_utils.dart
@@ -0,0 +1,15 @@
+import 'dart:math';
+
+class StringUtils {
+  static String generateRandomString(int length) {
+    const String _chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
+    Random _rnd = Random();
+
+    return String.fromCharCodes(
+      Iterable.generate(
+        length,
+            (_) => _chars.codeUnitAt(_rnd.nextInt(_chars.length)),
+      ),
+    );
+  }
+}