feat: add stellar recovery service (#1549)

Co-authored-by: Kirill Bubochkin <[email protected]>

packages/espressocash_app/lib/features/accounts/models/account.dart

@@ -25,3 +25,9 @@ class AccessMode with _$AccessMode {
   const factory AccessMode.seedInputted() = _SeedInputted;
   const factory AccessMode.created() = _AccountCreated;
 }
+
+extension AccessModeExt on AccessMode {
+  bool get isLoaded => this is _Loaded;
+  bool get isSeedInputted => this is _SeedInputted;
+  bool get isAccountCreated => this is _AccountCreated;
+}

packages/espressocash_app/lib/features/authenticated/widgets/investment_header.dart

@@ -4,6 +4,7 @@ import '../../../l10n/l10n.dart';
 import '../../../ui/button.dart';
 import '../../../ui/colors.dart';
 import '../../../ui/info_icon.dart';
+import '../../stellar_recovery/widgets/stellar_recovery_notice.dart';
 import 'balance_amount.dart';
 
 class InvestmentHeader extends StatefulWidget {
@@ -33,6 +34,7 @@ class _InvestmentHeaderState extends State<InvestmentHeader> {
                 const SizedBox(height: 4),
                 const BalanceAmount(),
                 const SizedBox(height: 12),
+                const StellarRecoveryNotice(),
               ],
             ),
           ),

packages/espressocash_app/lib/features/intercom/services/intercom_service.dart

@@ -36,6 +36,10 @@ class IntercomService implements Disposable {
   void updateCountry(String? countryCode) => Intercom.instance
       .updateUser(customAttributes: {'countryCode': countryCode});
 
+  void updateStellarAddress(String address) => Intercom.instance.updateUser(
+        customAttributes: {'stellarAddress': address},
+      );
+
   @override
   Future<void> onDispose() => Intercom.instance.logout();
 }

packages/espressocash_app/lib/features/stellar/service/stellar_account_service.dart

@@ -3,14 +3,20 @@ import 'package:sentry_flutter/sentry_flutter.dart';
 
 import '../../accounts/auth_scope.dart';
 import '../../analytics/analytics_manager.dart';
+import '../../intercom/services/intercom_service.dart';
 import '../models/stellar_wallet.dart';
 
 @Singleton(scope: authScope)
 class StellarAccountService {
-  const StellarAccountService(this._stellarWallet, this._analyticsManager);
+  const StellarAccountService(
+    this._stellarWallet,
+    this._analyticsManager,
+    this._intercomService,
+  );
 
   final StellarWallet _stellarWallet;
   final AnalyticsManager _analyticsManager;
+  final IntercomService _intercomService;
 
   @postConstruct
   void init() {
@@ -20,6 +26,7 @@ class StellarAccountService {
       (scope) => scope.setExtra('stellarWalletAddress', address),
     );
     _analyticsManager.setStellarAddress(address);
+    _intercomService.updateStellarAddress(address);
   }
 
   @disposeMethod

packages/espressocash_app/lib/features/stellar_recovery/models/recovery_state.dart

@@ -0,0 +1,37 @@
+import 'package:freezed_annotation/freezed_annotation.dart';
+
+import '../../currency/models/amount.dart';
+
+part 'recovery_state.freezed.dart';
+
+@Freezed(map: FreezedMapOptions.none, when: FreezedWhenOptions.none)
+sealed class StellarRecoveryState with _$StellarRecoveryState {
+  const factory StellarRecoveryState.none() = RecoveryNone;
+
+  const factory StellarRecoveryState.pending({
+    required CryptoAmount amount,
+  }) = RecoveryPending;
+
+  const factory StellarRecoveryState.processing({
+    CryptoAmount? amount,
+    String? txId,
+  }) = RecoveryProcessing;
+
+  const factory StellarRecoveryState.completed({
+    required CryptoAmount amount,
+    required String txId,
+  }) = RecoveryCompleted;
+
+  const factory StellarRecoveryState.failed() = RecoveryFailed;
+
+  const factory StellarRecoveryState.dismissed() = RecoveryDismissed;
+}
+
+extension StellarRecoveryStateX on StellarRecoveryState {
+  CryptoAmount? get amount => switch (this) {
+        RecoveryPending(:final amount) => amount,
+        RecoveryProcessing(:final amount) => amount,
+        RecoveryCompleted(:final amount) => amount,
+        _ => null,
+      };
+}

packages/espressocash_app/lib/features/stellar_recovery/screens/recover_stellar_screen.dart

@@ -0,0 +1,111 @@
+import 'package:flutter/material.dart';
+
+import '../../../di.dart';
+import '../../../gen/assets.gen.dart';
+import '../../../l10n/device_locale.dart';
+import '../../../l10n/l10n.dart';
+import '../../../ui/app_bar.dart';
+import '../../../ui/button.dart';
+import '../../../ui/colors.dart';
+import '../../conversion_rates/widgets/extensions.dart';
+import '../models/recovery_state.dart';
+import '../service/recovery_service.dart';
+
+class RecoverStellarScreen extends StatelessWidget {
+  const RecoverStellarScreen({super.key, required this.onConfirmed});
+
+  final VoidCallback onConfirmed;
+
+  static void push(
+    BuildContext context, {
+    required VoidCallback onConfirmed,
+  }) =>
+      Navigator.of(context).push<void>(
+        MaterialPageRoute(
+          builder: (context) => RecoverStellarScreen(
+            onConfirmed: onConfirmed,
+          ),
+        ),
+      );
+
+  void _handleRecoverPressed() {
+    sl<StellarRecoveryService>().recover();
+    onConfirmed();
+  }
+
+  @override
+  Widget build(BuildContext context) => Scaffold(
+        backgroundColor: CpColors.yellowSplashBackgroundColor,
+        appBar: CpAppBar(
+          scrolledUnderColor: CpColors.yellowSplashBackgroundColor,
+          title: Text(context.l10n.moneyRecoveryTitle),
+        ),
+        extendBodyBehindAppBar: true,
+        extendBody: true,
+        bottomNavigationBar: SafeArea(
+          child: Padding(
+            padding: const EdgeInsets.all(32),
+            child: CpButton(
+              onPressed: _handleRecoverPressed,
+              text: context.l10n.moneyRecoveryBtn,
+            ),
+          ),
+        ),
+        body: Stack(
+          children: [
+            Align(
+              child: Assets.images.dollarBg.image(
+                fit: BoxFit.fitHeight,
+                height: double.infinity,
+              ),
+            ),
+            Padding(
+              padding: const EdgeInsets.symmetric(horizontal: 24),
+              child: Column(
+                mainAxisAlignment: MainAxisAlignment.center,
+                children: [
+                  Assets.icons.money.svg(
+                    height: 90,
+                    width: 90,
+                  ),
+                  const SizedBox(height: 24),
+                  Text(
+                    context.l10n.moneyRecoveryContent(
+                      sl<StellarRecoveryService>()
+                              .value
+                              .amount
+                              ?.format(context.locale, maxDecimals: 2) ??
+                          '-',
+                    ),
+                    textAlign: TextAlign.center,
+                    style: const TextStyle(
+                      fontWeight: FontWeight.w600,
+                      fontSize: 32,
+                      height: 0.95,
+                    ),
+                  ),
+                  const SizedBox(height: 12),
+                  Text(
+                    context.l10n.moneyRecoverySubContent,
+                    textAlign: TextAlign.center,
+                    style: const TextStyle(
+                      fontWeight: FontWeight.w500,
+                      fontSize: 18,
+                    ),
+                  ),
+                  const SizedBox(height: 6),
+                  Text(
+                    context.l10n.moneyRecoveryDisclaimer,
+                    textAlign: TextAlign.center,
+                    style: const TextStyle(
+                      fontWeight: FontWeight.w400,
+                      fontSize: 14,
+                    ),
+                  ),
+                ],
+              ),
+            ),
+          ],
+        ),
+      );
+}