Add wallet-backed home page

bdk_demo/lib/core/constants/app_constants.dart

@@ -13,6 +13,10 @@ abstract final class AppConstants {
 
   static const electrumFetchPrevTxouts = false;
 
+  static const syncSlowWarningAfter = Duration(seconds: 10);
+
+  static const syncTimeout = Duration(seconds: 12);
+
   static const maxRecipients = 4;
 
   static const maxLogEntries = 5000;

bdk_demo/lib/core/constants/network_endpoints.dart

@@ -0,0 +1,120 @@
+import 'package:bdk_demo/core/constants/app_constants.dart';
+import 'package:bdk_demo/models/wallet_record.dart';
+
+class NetworkEndpointOption {
+  const NetworkEndpointOption({
+    required this.id,
+    required this.label,
+    required this.url,
+    required this.clientType,
+  });
+
+  final String id;
+  final String label;
+  final String url;
+  final ClientType clientType;
+
+  EndpointConfig get config => EndpointConfig(clientType: clientType, url: url);
+}
+
+const signetEndpointOptions = [
+  NetworkEndpointOption(
+    id: 'mempool-signet',
+    label: 'Mempool.space',
+    url: 'ssl://mempool.space:60602',
+    clientType: ClientType.electrum,
+  ),
+  NetworkEndpointOption(
+    id: 'mutinynet-signet',
+    label: 'Mutinynet',
+    url: 'ssl://mutinynet.com:60602',
+    clientType: ClientType.electrum,
+  ),
+  NetworkEndpointOption(
+    id: 'emzy-signet',
+    label: 'Emzy.de',
+    url: 'ssl://electrum.emzy.de:53002',
+    clientType: ClientType.electrum,
+  ),
+  NetworkEndpointOption(
+    id: 'wakiyamap-signet',
+    label: 'Wakiyamap',
+    url: 'ssl://signet-electrumx.wakiyamap.dev:50002',
+    clientType: ClientType.electrum,
+  ),
+];
+
+const testnetEndpointOptions = [
+  NetworkEndpointOption(
+    id: 'blockstream-testnet',
+    label: 'Blockstream',
+    url: 'ssl://electrum.blockstream.info:60002',
+    clientType: ClientType.electrum,
+  ),
+  NetworkEndpointOption(
+    id: 'aranguren-testnet',
+    label: 'Aranguren.org',
+    url: 'ssl://testnet.aranguren.org:51002',
+    clientType: ClientType.electrum,
+  ),
+  NetworkEndpointOption(
+    id: 'qtornado-testnet',
+    label: 'Qtornado.com',
+    url: 'ssl://testnet.qtornado.com:51002',
+    clientType: ClientType.electrum,
+  ),
+  NetworkEndpointOption(
+    id: 'c3soft-testnet',
+    label: 'C3-soft',
+    url: 'ssl://blackie.c3-soft.com:57006',
+    clientType: ClientType.electrum,
+  ),
+  NetworkEndpointOption(
+    id: 'bestsrv-testnet',
+    label: 'Bestsrv.de',
+    url: 'ssl://v22019051929289916.bestsrv.de:50002',
+    clientType: ClientType.electrum,
+  ),
+];
+
+List<NetworkEndpointOption> endpointOptionsFor(WalletNetwork network) {
+  return switch (network) {
+    WalletNetwork.signet => signetEndpointOptions,
+    WalletNetwork.testnet => testnetEndpointOptions,
+    WalletNetwork.regtest => const [],
+  };
+}
+
+EndpointConfig resolveEndpointConfig(
+  WalletNetwork network, {
+  String? selectedUrl,
+}) {
+  final options = endpointOptionsFor(network);
+  if (selectedUrl != null) {
+    for (final option in options) {
+      if (option.url == selectedUrl) return option.config;
+    }
+  }
+
+  return defaultEndpoints[network] ?? options.first.config;
+}
+
+NetworkEndpointOption? selectedEndpointOption(
+  WalletNetwork network, {
+  String? selectedUrl,
+}) {
+  if (selectedUrl == null) {
+    final options = endpointOptionsFor(network);
+    if (options.isEmpty) return null;
+    final defaultUrl = defaultEndpoints[network]?.url;
+    for (final option in options) {
+      if (option.url == defaultUrl) return option;
+    }
+    return options.first;
+  }
+
+  for (final option in endpointOptionsFor(network)) {
+    if (option.url == selectedUrl) return option;
+  }
+  return null;
+}

bdk_demo/lib/core/router/app_router.dart

@@ -1,11 +1,15 @@
+import 'package:flutter_riverpod/misc.dart';
 import 'package:go_router/go_router.dart';
+import 'package:bdk_demo/features/home/home_page.dart';
 import 'package:bdk_demo/features/transactions/transaction_detail_page.dart';
 import 'package:bdk_demo/features/transactions/transactions_list_page.dart';
 import 'package:bdk_demo/features/shared/widgets/placeholder_page.dart';
 import 'package:bdk_demo/features/wallet_setup/active_wallets_page.dart';
 import 'package:bdk_demo/features/wallet_setup/create_wallet_page.dart';
 import 'package:bdk_demo/features/wallet_setup/recover_wallet_page.dart';
 import 'package:bdk_demo/features/wallet_setup/wallet_choice_page.dart';
+import 'package:bdk_demo/providers/connectivity_provider.dart';
+import 'package:bdk_demo/providers/wallet_providers.dart';
 
 abstract final class AppRoutes {
   static const walletChoice = '/';
@@ -24,7 +28,18 @@ abstract final class AppRoutes {
   static const recoveryData = '/recovery-data';
 }
 
-GoRouter createRouter() => GoRouter(
+typedef RouterRead = T Function<T>(ProviderListenable<T> provider);
+
+String? _sendRouteRedirect(RouterRead read) {
+  final hasActiveWallet =
+      read(activeWalletRecordProvider) != null &&
+      read(activeWalletProvider) != null;
+  if (!hasActiveWallet) return AppRoutes.home;
+  if (!read(isOnlineProvider)) return AppRoutes.home;
+  return null;
+}
+
+GoRouter createRouter(RouterRead read) => GoRouter(
   initialLocation: AppRoutes.walletChoice,
   routes: [
     GoRoute(
@@ -51,7 +66,7 @@ GoRouter createRouter() => GoRouter(
     GoRoute(
       path: AppRoutes.home,
       name: 'home',
-      builder: (context, state) => const PlaceholderPage(title: 'Home'),
+      builder: (context, state) => const HomePage(),
     ),
     GoRoute(
       path: AppRoutes.receive,
@@ -61,6 +76,7 @@ GoRouter createRouter() => GoRouter(
     GoRoute(
       path: AppRoutes.send,
       name: 'send',
+      redirect: (context, state) => _sendRouteRedirect(read),
       builder: (context, state) => const PlaceholderPage(title: 'Send'),
     ),
     GoRoute(