WIP: integration with ledger

frontend/pweb/lib/pages/wallet_top_up/page.dart

@@ -1,10 +1,15 @@
 import 'package:flutter/material.dart';
 
+import 'package:collection/collection.dart';
 import 'package:provider/provider.dart';
 
 import 'package:pshared/controllers/balance_mask/wallets.dart';
+import 'package:pshared/controllers/payment/source.dart';
+import 'package:pshared/models/payment/source.dart';
+import 'package:pshared/provider/ledger.dart';
 
 import 'package:pweb/pages/wallet_top_up/content.dart';
+import 'package:pweb/pages/wallet_top_up/ledger_content.dart';
 
 import 'package:pweb/generated/i18n/app_localizations.dart';
 
@@ -17,27 +22,55 @@ class WalletTopUpPage extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     final loc = AppLocalizations.of(context)!;
+    final source = context.watch<PaymentSourceController>().selectedSource;
 
-    return Consumer<WalletsController>(builder: (context, provider, child) {
-      if (provider.isLoading) {
-        return const Center(child: CircularProgressIndicator());
-      }
+    if (source == null) {
+      return Center(child: Text(loc.noWalletSelected));
+    }
 
-      if (provider.error != null) {
-        return Center(
-          child: Text(loc.notificationError(provider.error.toString())),
-        );
-      }
+    return switch (source.type) {
+      PaymentSourceType.wallet => Consumer<WalletsController>(
+        builder: (context, provider, child) {
+          if (provider.isLoading) {
+            return const Center(child: CircularProgressIndicator());
+          }
 
-      final wallet = provider.selectedWallet;
-      if (wallet == null) {
-        return Center(child: Text(loc.noWalletSelected));
-      }
+          if (provider.error != null) {
+            return Center(
+              child: Text(loc.notificationError(provider.error.toString())),
+            );
+          }
 
-      return WalletTopUpContent(
-        wallet: wallet,
-        onBack: onBack,
-      );
-    });
+          final wallet = provider.selectedWallet;
+          if (wallet == null) {
+            return Center(child: Text(loc.noWalletSelected));
+          }
+
+          return WalletTopUpContent(wallet: wallet, onBack: onBack);
+        },
+      ),
+      PaymentSourceType.ledger => Consumer<LedgerAccountsProvider>(
+        builder: (context, provider, child) {
+          if (provider.isLoading) {
+            return const Center(child: CircularProgressIndicator());
+          }
+
+          if (provider.error != null) {
+            return Center(
+              child: Text(loc.notificationError(provider.error.toString())),
+            );
+          }
+
+          final account = provider.accounts.firstWhereOrNull(
+            (item) => item.ledgerAccountRef == source.id,
+          );
+          if (account == null) {
+            return Center(child: Text(loc.noWalletSelected));
+          }
+
+          return LedgerTopUpContent(account: account, onBack: onBack);
+        },
+      ),
+    };
   }
 }