refactor: handle challenge templates

mobile-app/lib/app/app.dart

@@ -16,7 +16,7 @@ import 'package:freecodecamp/service/dio_service.dart';
 import 'package:freecodecamp/service/news/api_service.dart';
 
 import 'package:freecodecamp/ui/views/code_radio/code_radio_view.dart';
-import 'package:freecodecamp/ui/views/learn/challenge/challenge_view.dart';
+import 'package:freecodecamp/ui/views/learn/challenge/templates/template_view.dart';
 import 'package:freecodecamp/ui/views/learn/landing/landing_view.dart';
 import 'package:freecodecamp/ui/views/learn/superblock/superblock_view.dart';
 import 'package:freecodecamp/ui/views/login/native_login_view.dart';
@@ -48,7 +48,7 @@ import 'package:stacked_services/stacked_services.dart';
     MaterialRoute(page: NewsAuthorView),
     MaterialRoute(page: NewsImageView),
     MaterialRoute(page: CodeRadioView),
-    MaterialRoute(page: ChallengeView),
+    MaterialRoute(page: ChallengeTemplateView),
     MaterialRoute(page: ProfileView),
     MaterialRoute(page: LearnLandingView, initial: true),
     MaterialRoute(page: NativeLoginView),

mobile-app/lib/service/firebase/analytics_observer.dart

@@ -28,8 +28,9 @@ class AnalyticsObserver extends RouteObserver {
               route.settings.arguments as NewsBookmarkTutorialViewArguments;
           screenName += '/${routeArgs.tutorial.tutorialTitle}';
           break;
-        case ChallengeViewArguments:
-          final routeArgs = route.settings.arguments as ChallengeViewArguments;
+        case ChallengeTemplateViewArguments:
+          final routeArgs =
+              route.settings.arguments as ChallengeTemplateViewArguments;
           screenName += '/${routeArgs.challengeId}';
           break;
         default:

mobile-app/lib/service/learn/learn_service.dart

@@ -172,17 +172,13 @@ class LearnService {
     if (challengeIndex == maxChallenges - 1) {
       _navigationService.back();
     } else {
-      String challenge = block.challengeTiles[challengeIndex + 1].id;
-      String url = LearnService.baseUrl;
       _navigationService.replaceWith(
-        Routes.challengeView,
-        arguments: ChallengeViewArguments(
-            url:
-                '$url/challenges/${block.superBlock.dashedName}/${block.dashedName}/$challenge.json',
-            block: block,
-            challengeId: block.challengeTiles[challengeIndex + 1].id,
-            challengesCompleted: challengesCompleted + 1,
-            isProject: block.challenges.length == 1),
+        Routes.challengeTemplateView,
+        arguments: ChallengeTemplateViewArguments(
+          challengeId: block.challengeTiles[challengeIndex + 1].id,
+          block: block,
+          challengesCompleted: challengesCompleted + 1,
+        ),
       );
     }
   }

mobile-app/lib/ui/views/learn/block/block_view.dart

@@ -1,7 +1,6 @@
 import 'package:flutter/material.dart';
 import 'package:freecodecamp/extensions/i18n_extension.dart';
 import 'package:freecodecamp/models/learn/curriculum_model.dart';
-import 'package:freecodecamp/service/learn/learn_service.dart';
 import 'package:freecodecamp/ui/views/learn/block/block_viewmodel.dart';
 import 'package:freecodecamp/ui/views/learn/utils/learn_globals.dart';
 import 'package:freecodecamp/ui/views/learn/widgets/download_button_widget.dart';
@@ -243,10 +242,7 @@ class BlockView extends StatelessWidget {
             onTap: () async {
               String challengeId = block.challengeTiles[i].id;
 
-              String url = LearnService.baseUrl;
-
               model.routeToChallengeView(
-                '$url/challenges/${block.superBlock.dashedName}/${block.dashedName}/$challengeId.json',
                 block,
                 challengeId,
               );
@@ -380,13 +376,7 @@ class ChallengeTile extends StatelessWidget {
         width: 70,
         child: InkWell(
           onTap: () async {
-            String url = LearnService.baseUrl;
-
-            String fullUrl =
-                '$url/challenges/${block.superBlock.dashedName}/${block.dashedName}/$challengeId.json';
-
             model.routeToChallengeView(
-              fullUrl,
               block,
               challengeId,
             );

mobile-app/lib/ui/views/learn/block/block_viewmodel.dart

@@ -82,26 +82,21 @@ class BlockViewModel extends BaseViewModel {
     notifyListeners();
   }
 
-  void routeToChallengeView(String url, Block block, String challengeId) {
+  void routeToChallengeView(Block block, String challengeId) {
     _navigationService.navigateTo(
-      Routes.challengeView,
-      arguments: ChallengeViewArguments(
-        url: url,
-        block: block,
+      Routes.challengeTemplateView,
+      arguments: ChallengeTemplateViewArguments(
         challengeId: challengeId,
+        block: block,
         challengesCompleted: _challengesCompleted,
-        isProject: block.challenges.length == 1,
       ),
     );
   }
 
   Future<void> routeToCertification(Block block) async {
     String challengeId = block.challengeTiles[0].id;
 
-    String url = LearnService.baseUrl;
-
     routeToChallengeView(
-      '$url/challenges/${block.superBlock.dashedName}/${block.dashedName}/$challengeId.json',
       block,
       challengeId,
     );