redesigned payment page + a lot of fixes

frontend/pshared/lib/provider/payment/multiple/quotation.dart

@@ -7,16 +7,20 @@ import 'package:pshared/data/mapper/payment/intent/payment.dart';
 import 'package:pshared/models/payment/intent.dart';
 import 'package:pshared/models/payment/quote/quotes.dart';
 import 'package:pshared/provider/organizations.dart';
+import 'package:pshared/provider/payment/auto_refresh.dart';
 import 'package:pshared/provider/resource.dart';
 import 'package:pshared/service/payment/multiple.dart';
 import 'package:pshared/utils/exception.dart';
 
 
 class MultiQuotationProvider extends ChangeNotifier {
+  static const Duration _autoRefreshLead = Duration(seconds: 5);
+
   OrganizationsProvider? _organizations;
   String? _loadedOrganizationRef;
 
   Resource<PaymentQuotes> _quotation = Resource(data: null);
+  final AutoRefreshScheduler _autoRefresh = AutoRefreshScheduler();
 
   List<PaymentIntent>? _lastIntents;
   bool _lastPreviewOnly = false;
@@ -125,12 +129,32 @@ class MultiQuotationProvider extends ChangeNotifier {
     _lastPreviewOnly = false;
     _lastMetadata = null;
     _quotation = Resource(data: null);
+    _syncAutoRefresh();
     notifyListeners();
   }
 
   void _setResource(Resource<PaymentQuotes> quotation) {
     _quotation = quotation;
+    _syncAutoRefresh();
     notifyListeners();
   }
 
+  void _syncAutoRefresh() {
+    final scheduledAt = quoteExpiresAt?.subtract(_autoRefreshLead);
+    _autoRefresh.setEnabled(true);
+    _autoRefresh.sync(
+      isLoading: isLoading,
+      canRefresh: canRefresh,
+      scheduledAt: scheduledAt,
+      onRefresh: () async {
+        await refreshQuotation();
+      },
+    );
+  }
+
+  @override
+  void dispose() {
+    _autoRefresh.dispose();
+    super.dispose();
+  }
 }