create dummy AdCard

application/lib/infrastructure/use_case/discovery_engine/custom_card/ad_card_injection_use_case.dart

@@ -17,7 +17,10 @@ class AdCardInjectionUseCase extends UseCase<Set<Card>, Set<Card>> {
 
   @override
   Stream<Set<Card>> transaction(Set<Card> param) async* {
-    if (!featureManager.areAdsEnabled) yield param;
+    if (!featureManager.areAdsEnabled) {
+      yield param;
+      return;
+    }
 
     final documents = param
         .where((it) => it.type == CardType.document)

application/lib/presentation/base_discovery/manager/base_discovery_manager.dart

@@ -200,6 +200,10 @@ abstract class BaseDiscoveryManager extends Cubit<DiscoveryState>
 
   void handleSurveyTapped() => handleSurveyBannerClickedUseCase(none);
 
+  void handleAdTapped() {
+    throw UnimplementedError('handleAdTapped was not implemented');
+  }
+
   void handleLoadMore();
 
   void handleShowPaywallIfNeeded(SubscriptionStatus subscriptionStatus);

application/lib/presentation/base_discovery/widget/base_discovery_widget.dart

@@ -14,6 +14,7 @@ import 'package:xayn_discovery_app/presentation/base_discovery/manager/discovery
 import 'package:xayn_discovery_app/presentation/constants/keys.dart';
 import 'package:xayn_discovery_app/presentation/constants/r.dart';
 import 'package:xayn_discovery_app/presentation/discovery_card/manager/card_managers_cache.dart';
+import 'package:xayn_discovery_app/presentation/discovery_card/widget/custom_card/ad_card.dart';
 import 'package:xayn_discovery_app/presentation/discovery_card/widget/custom_card/survey_card.dart';
 import 'package:xayn_discovery_app/presentation/discovery_card/widget/dicovery_feed_card.dart';
 import 'package:xayn_discovery_app/presentation/discovery_card/widget/discovery_card.dart';
@@ -276,21 +277,11 @@ abstract class BaseDiscoveryFeedState<T extends BaseDiscoveryManager,
               )
             : GestureDetector(
                 onTap: isPrimary ? onTapPrimary : onTapSecondary,
-                child: document != null
-                    ? DiscoveryFeedCard(
-                        isPrimary: isPrimary,
-                        document: document,
-                        primaryCardShader: ShaderFactory.fromType(shaderType!),
-                        onTtsData: (it) => setState(() => ttsData =
-                            ttsData.enabled ? TtsData.disabled() : it),
-                        feedType: manager.feedType,
-                      )
-                    : SurveyCard(
-                        cardType: card.type,
-                        onPressed: manager.handleSurveyTapped,
-                        primaryCardShader:
-                            ShaderFactory.fromType(ShaderType.static),
-                      ),
+                child: _buildCard(
+                  card: card,
+                  isPrimary: isPrimary,
+                  shaderType: shaderType,
+                ),
               );
 
         return Semantics(
@@ -315,6 +306,32 @@ abstract class BaseDiscoveryFeedState<T extends BaseDiscoveryManager,
                 : cardWidget);
       };
 
+  Widget _buildCard({
+    required item_renderer.Card card,
+    bool isPrimary = false,
+    ShaderType? shaderType,
+  }) {
+    switch (card.type) {
+      case item_renderer.CardType.document:
+        return DiscoveryFeedCard(
+          isPrimary: isPrimary,
+          document: card.requireDocument,
+          primaryCardShader: ShaderFactory.fromType(shaderType!),
+          onTtsData: (it) => setState(
+              () => ttsData = ttsData.enabled ? TtsData.disabled() : it),
+          feedType: manager.feedType,
+        );
+      case item_renderer.CardType.survey:
+        return SurveyCard(
+          onPressed: manager.handleSurveyTapped,
+        );
+      case item_renderer.CardType.ad:
+        return AdCard(
+          onPressed: manager.handleAdTapped,
+        );
+    }
+  }
+
   ShaderType _getShaderType(NewsResource newsResource) {
     // A document doesn't have a unique 'index',
     // and also, the index within the feed is not static, as older

application/lib/presentation/discovery_card/widget/custom_card/ad_card.dart

@@ -0,0 +1,74 @@
+import 'package:flutter/widgets.dart';
+import 'package:xayn_design/xayn_design.dart';
+import 'package:xayn_discovery_app/presentation/constants/r.dart';
+import 'package:xayn_discovery_app/presentation/images/widget/cached_image.dart';
+import 'package:xayn_discovery_app/presentation/images/widget/shader/shader.dart';
+import 'package:xayn_discovery_app/presentation/images/widget/shader/static/static_painter.dart';
+import 'package:xayn_discovery_app/presentation/widget/animation_player.dart';
+
+class AdCard extends StatelessWidget {
+  late final ShaderBuilder primaryCardShader =
+      ShaderFactory.fromType(ShaderType.static);
+  final VoidCallback onPressed;
+
+  AdCard({
+    Key? key,
+    required this.onPressed,
+  }) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    final children = <Widget>[
+      SizedBox(height: R.dimen.unit),
+      Expanded(child: _buildAnimation()),
+      SizedBox(height: R.dimen.unit2),
+      Text(
+        'Buy buy buy!',
+        textAlign: TextAlign.center,
+        style: R.styles.lBoldStyle.copyWith(color: R.colors.brightText),
+      ),
+      SizedBox(height: R.dimen.unit2),
+      Text(
+        'click this ad for great success!!',
+        textAlign: TextAlign.center,
+        style: R.styles.mStyle.copyWith(color: R.colors.brightText),
+      ),
+      SizedBox(height: R.dimen.unit2_5),
+      _buildTakeSurveyBtn(),
+    ];
+
+    return Stack(
+      children: [
+        Positioned.fill(
+          child: CustomPaint(
+            painter: StaticPainter(
+              shadowColor: R.colors.shadow,
+            ),
+          ),
+        ),
+        Padding(
+          padding: EdgeInsets.symmetric(
+            horizontal: R.dimen.unit4,
+            vertical: R.dimen.unit6,
+          ),
+          child: Column(
+            mainAxisSize: MainAxisSize.min,
+            mainAxisAlignment: MainAxisAlignment.center,
+            children: children,
+          ),
+        ),
+      ],
+    );
+  }
+
+  Widget _buildAnimation() =>
+      AnimationPlayer.assetUnrestrictedSize(R.assets.lottie.bookmarkClick);
+
+  Widget _buildTakeSurveyBtn() => SizedBox(
+        width: double.maxFinite,
+        child: AppRaisedButton.text(
+          text: 'OMG I WANT THIS NOW!!!',
+          onPressed: onPressed,
+        ),
+      );
+}

application/lib/presentation/discovery_card/widget/custom_card/survey_card.dart

@@ -1,25 +1,20 @@
 import 'package:flutter/widgets.dart';
 import 'package:xayn_design/xayn_design.dart';
-import 'package:xayn_discovery_app/domain/item_renderer/card.dart';
 import 'package:xayn_discovery_app/presentation/constants/r.dart';
 import 'package:xayn_discovery_app/presentation/images/widget/cached_image.dart';
 import 'package:xayn_discovery_app/presentation/images/widget/shader/shader.dart';
 import 'package:xayn_discovery_app/presentation/images/widget/shader/static/static_painter.dart';
 import 'package:xayn_discovery_app/presentation/widget/animation_player.dart';
 
 class SurveyCard extends StatelessWidget {
-  final CardType cardType;
-  final ShaderBuilder primaryCardShader;
+  late final ShaderBuilder primaryCardShader =
+      ShaderFactory.fromType(ShaderType.static);
   final VoidCallback onPressed;
 
   SurveyCard({
     Key? key,
-    required this.cardType,
     required this.onPressed,
-    ShaderBuilder? primaryCardShader,
-  })  : primaryCardShader =
-            primaryCardShader ?? ShaderFactory.fromType(ShaderType.static),
-        super(key: key);
+  }) : super(key: key);
 
   @override
   Widget build(BuildContext context) {