feat: add mock pfi verification widget

frontend/ios/Podfile.lock

@@ -5,16 +5,13 @@ PODS:
   - path_provider_foundation (0.0.1):
     - Flutter
     - FlutterMacOS
-  - url_launcher_ios (0.0.1):
-    - Flutter
   - webview_flutter_wkwebview (0.0.1):
     - Flutter
 
 DEPENDENCIES:
   - Flutter (from `Flutter`)
   - flutter_secure_storage (from `.symlinks/plugins/flutter_secure_storage/ios`)
   - path_provider_foundation (from `.symlinks/plugins/path_provider_foundation/darwin`)
-  - url_launcher_ios (from `.symlinks/plugins/url_launcher_ios/ios`)
   - webview_flutter_wkwebview (from `.symlinks/plugins/webview_flutter_wkwebview/ios`)
 
 EXTERNAL SOURCES:
@@ -24,16 +21,13 @@ EXTERNAL SOURCES:
     :path: ".symlinks/plugins/flutter_secure_storage/ios"
   path_provider_foundation:
     :path: ".symlinks/plugins/path_provider_foundation/darwin"
-  url_launcher_ios:
-    :path: ".symlinks/plugins/url_launcher_ios/ios"
   webview_flutter_wkwebview:
     :path: ".symlinks/plugins/webview_flutter_wkwebview/ios"
 
 SPEC CHECKSUMS:
   Flutter: f04841e97a9d0b0a8025694d0796dd46242b2854
   flutter_secure_storage: 23fc622d89d073675f2eaa109381aefbcf5a49be
   path_provider_foundation: 29f094ae23ebbca9d3d0cec13889cd9060c0e943
-  url_launcher_ios: bf5ce03e0e2088bad9cc378ea97fa0ed5b49673b
   webview_flutter_wkwebview: 2e2d318f21a5e036e2c3f26171342e95908bd60a
 
 PODFILE CHECKSUM: 70d9d25280d0dd177a5f637cdb0f0b0b12c6a189

frontend/lib/features/home/home_page.dart

@@ -1,7 +1,7 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_starter/features/pfis/pfi_providers.dart';
+import 'package:flutter_starter/features/pfis/pfi_verification_page.dart';
 import 'package:hooks_riverpod/hooks_riverpod.dart';
-import 'package:url_launcher/url_launcher.dart';
 
 class HomePage extends HookConsumerWidget {
   const HomePage({super.key});
@@ -14,23 +14,21 @@ class HomePage extends HookConsumerWidget {
       body: ListView(
         children: [
           ...pfis.map(
-            (e) => ListTile(
-              title: Text(e.name),
-              subtitle: Text(e.id),
+            (pfi) => ListTile(
+              title: Text(pfi.name),
+              subtitle: Text(pfi.id),
               trailing: const Icon(Icons.chevron_right),
               onTap: () {
-                _launchUrl(e.widgetUrl);
+                Navigator.of(context).push(
+                  MaterialPageRoute(
+                    builder: (_) => PfiVerificationPage(pfi: pfi),
+                  ),
+                );
               },
             ),
           )
         ],
       ),
     );
   }
-
-  Future<void> _launchUrl(String url) async {
-    if (!await launchUrl(Uri.parse(url))) {
-      throw Exception('Could not launch $url');
-    }
-  }
 }

frontend/lib/features/pfis/pfi_providers.dart

@@ -3,7 +3,16 @@ import 'package:hooks_riverpod/hooks_riverpod.dart';
 
 final pfisProvider = Provider<List<Pfi>>(
   (ref) => [
-    Pfi(id: 'africa', name: 'Africa', widgetUrl: 'https://tbd.website'),
-    Pfi(id: 'mexico', name: 'Mexico', widgetUrl: 'https://block.xyz'),
+    Pfi(
+      id: 'africa',
+      name: 'Africa',
+      widgetUrl: 'https://tbd.website',
+    ),
+    Pfi(
+      id: 'mexico',
+      name: 'Mexico',
+      widgetUrl:
+          'https://robustdisastrousstartups.wesbillman.repl.co/?proof=moeisreal&callback_uri=didpay://wes',
+    ),
   ],
 );

frontend/lib/features/pfis/pfi_verification_page.dart

@@ -0,0 +1,49 @@
+import 'package:webview_flutter/webview_flutter.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_starter/features/pfis/pfi.dart';
+
+class PfiVerificationPage extends StatelessWidget {
+  final Pfi pfi;
+
+  const PfiVerificationPage({required this.pfi, super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    final controller = WebViewController()
+      ..setBackgroundColor(Theme.of(context).colorScheme.background)
+      ..setNavigationDelegate(
+        NavigationDelegate(
+          onProgress: (int progress) {
+            // Update loading bar.
+          },
+          onPageStarted: (String url) {},
+          onPageFinished: (String url) {},
+          onWebResourceError: (WebResourceError error) {},
+          onNavigationRequest: (NavigationRequest request) {
+            if (request.url.startsWith('didpay://')) {
+              _handleDidPay(context, request.url);
+              return NavigationDecision.prevent;
+            }
+            return NavigationDecision.navigate;
+          },
+        ),
+      )
+      ..loadRequest(Uri.parse(pfi.widgetUrl));
+
+    return Scaffold(
+      appBar: AppBar(title: const Text('PFI Verification')),
+      body: WebViewWidget(
+        controller: controller,
+      ),
+    );
+  }
+
+  void _handleDidPay(BuildContext context, String url) {
+    final snackBar = SnackBar(
+      content: Text('Received custom URL callback: $url'),
+    );
+
+    ScaffoldMessenger.of(context).showSnackBar(snackBar);
+    Navigator.of(context).pop();
+  }
+}

frontend/pubspec.lock

@@ -387,70 +387,6 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.3.2"
-  url_launcher:
-    dependency: "direct main"
-    description:
-      name: url_launcher
-      sha256: e9aa5ea75c84cf46b3db4eea212523591211c3cf2e13099ee4ec147f54201c86
-      url: "https://pub.dev"
-    source: hosted
-    version: "6.2.2"
-  url_launcher_android:
-    dependency: transitive
-    description:
-      name: url_launcher_android
-      sha256: "31222ffb0063171b526d3e569079cf1f8b294075ba323443fdc690842bfd4def"
-      url: "https://pub.dev"
-    source: hosted
-    version: "6.2.0"
-  url_launcher_ios:
-    dependency: transitive
-    description:
-      name: url_launcher_ios
-      sha256: bba3373219b7abb6b5e0d071b0fe66dfbe005d07517a68e38d4fc3638f35c6d3
-      url: "https://pub.dev"
-    source: hosted
-    version: "6.2.1"
-  url_launcher_linux:
-    dependency: transitive
-    description:
-      name: url_launcher_linux
-      sha256: ab360eb661f8879369acac07b6bb3ff09d9471155357da8443fd5d3cf7363811
-      url: "https://pub.dev"
-    source: hosted
-    version: "3.1.1"
-  url_launcher_macos:
-    dependency: transitive
-    description:
-      name: url_launcher_macos
-      sha256: b7244901ea3cf489c5335bdacda07264a6e960b1c1b1a9f91e4bc371d9e68234
-      url: "https://pub.dev"
-    source: hosted
-    version: "3.1.0"
-  url_launcher_platform_interface:
-    dependency: transitive
-    description:
-      name: url_launcher_platform_interface
-      sha256: "980e8d9af422f477be6948bdfb68df8433be71f5743a188968b0c1b887807e50"
-      url: "https://pub.dev"
-    source: hosted
-    version: "2.2.0"
-  url_launcher_web:
-    dependency: transitive
-    description:
-      name: url_launcher_web
-      sha256: "7286aec002c8feecc338cc33269e96b73955ab227456e9fb2a91f7fab8a358e9"
-      url: "https://pub.dev"
-    source: hosted
-    version: "2.2.2"
-  url_launcher_windows:
-    dependency: transitive
-    description:
-      name: url_launcher_windows
-      sha256: ecf9725510600aa2bb6d7ddabe16357691b6d2805f66216a97d1b881e21beff7
-      url: "https://pub.dev"
-    source: hosted
-    version: "3.1.1"
   vector_math:
     dependency: transitive
     description:
@@ -516,5 +452,5 @@ packages:
     source: hosted
     version: "1.0.3"
 sdks:
-  dart: ">=3.2.0 <4.0.0"
-  flutter: ">=3.16.0"
+  dart: ">=3.2.0-194.0.dev <4.0.0"
+  flutter: ">=3.10.0"

frontend/pubspec.yaml

@@ -21,7 +21,6 @@ dependencies:
   flutter_secure_storage: ^9.0.0
   hooks_riverpod: ^2.4.9
   intl: ^0.18.1
-  url_launcher: ^6.2.2
   webview_flutter: ^4.4.2
 
 dev_dependencies: