verification before payment and email fixes

frontend/pshared/lib/provider/payment/payments.dart

@@ -17,7 +17,9 @@ class PaymentsProvider with ChangeNotifier {
   bool _isLoaded = false;
   bool _isLoadingMore = false;
   String? _nextCursor;
-
+  Timer? _autoRefreshTimer;
+  int _autoRefreshRefs = 0;
+  Duration _autoRefreshInterval = const Duration(seconds: 15);
   int? _limit;
   String? _sourceRef;
   String? _destinationRef;
@@ -35,6 +37,23 @@ class PaymentsProvider with ChangeNotifier {
   String? get nextCursor => _nextCursor;
   bool get canLoadMore => _nextCursor != null && _nextCursor!.isNotEmpty;
 
+  void beginAutoRefresh({Duration interval = const Duration(seconds: 15)}) {
+    _autoRefreshRefs += 1;
+    if (interval < _autoRefreshInterval) {
+      _autoRefreshInterval = interval;
+      _restartAutoRefreshTimer();
+    }
+    _ensureAutoRefreshTimer();
+  }
+
+  void endAutoRefresh() {
+    if (_autoRefreshRefs == 0) return;
+    _autoRefreshRefs -= 1;
+    if (_autoRefreshRefs == 0) {
+      _stopAutoRefreshTimer();
+    }
+  }
+
   void update(OrganizationsProvider organizations) {
     _organizations = organizations;
     if (!organizations.isOrganizationSet) {
@@ -42,6 +61,10 @@ class PaymentsProvider with ChangeNotifier {
       return;
     }
 
+    if (_autoRefreshRefs > 0) {
+      _ensureAutoRefreshTimer();
+    }
+
     final orgRef = organizations.current.id;
     if (_loadedOrganizationRef != orgRef) {
       _loadedOrganizationRef = orgRef;
@@ -54,6 +77,40 @@ class PaymentsProvider with ChangeNotifier {
     String? sourceRef,
     String? destinationRef,
     List<String>? states,
+  }) async {
+    await _refresh(
+      limit: limit,
+      sourceRef: sourceRef,
+      destinationRef: destinationRef,
+      states: states,
+      showLoading: true,
+      updateError: true,
+    );
+  }
+
+  Future<void> refreshSilently({
+    int? limit,
+    String? sourceRef,
+    String? destinationRef,
+    List<String>? states,
+  }) async {
+    await _refresh(
+      limit: limit,
+      sourceRef: sourceRef,
+      destinationRef: destinationRef,
+      states: states,
+      showLoading: false,
+      updateError: false,
+    );
+  }
+
+  Future<void> _refresh({
+    int? limit,
+    String? sourceRef,
+    String? destinationRef,
+    List<String>? states,
+    required bool showLoading,
+    required bool updateError,
   }) async {
     final org = _organizations;
     if (org == null || !org.isOrganizationSet) return;
@@ -67,7 +124,9 @@ class PaymentsProvider with ChangeNotifier {
 
     final seq = ++_opSeq;
 
-    _applyResource(_resource.copyWith(isLoading: true, error: null), notify: true);
+    if (showLoading) {
+      _applyResource(_resource.copyWith(isLoading: true, error: null), notify: true);
+    }
 
     try {
       final page = await PaymentService.listPage(
@@ -84,16 +143,26 @@ class PaymentsProvider with ChangeNotifier {
       _isLoaded = true;
       _nextCursor = _normalize(page.nextCursor);
       _applyResource(
-        Resource(data: page.items, isLoading: false, error: null),
+        Resource(
+          data: page.items,
+          isLoading: false,
+          error: null,
+        ),
         notify: true,
       );
     } catch (e) {
       if (seq != _opSeq) return;
-
-      _applyResource(
-        _resource.copyWith(isLoading: false, error: toException(e)),
-        notify: true,
-      );
+      if (updateError) {
+        _applyResource(
+          _resource.copyWith(isLoading: false, error: toException(e)),
+          notify: true,
+        );
+      } else if (showLoading) {
+        _applyResource(
+          _resource.copyWith(isLoading: false),
+          notify: true,
+        );
+      }
     }
   }
 
@@ -155,31 +224,10 @@ class PaymentsProvider with ChangeNotifier {
     _destinationRef = null;
     _states = null;
     _resource = Resource(data: []);
+    _pauseAutoRefreshTimer();
     notifyListeners();
   }
 
-  void addPayments(List<Payment> items, {bool prepend = true}) {
-    if (items.isEmpty) return;
-    final current = List<Payment>.from(payments);
-    final existingRefs = <String>{};
-    for (final payment in current) {
-      final ref = payment.paymentRef;
-      if (ref != null && ref.isNotEmpty) {
-        existingRefs.add(ref);
-      }
-    }
-
-    final newItems = items.where((payment) {
-      final ref = payment.paymentRef;
-      if (ref == null || ref.isEmpty) return true;
-      return !existingRefs.contains(ref);
-    }).toList();
-
-    if (newItems.isEmpty) return;
-    final combined = prepend ? [...newItems, ...current] : [...current, ...newItems];
-    _applyResource(_resource.copyWith(data: combined, error: null), notify: true);
-  }
-
   void _applyResource(Resource<List<Payment>> newResource, {required bool notify}) {
     _resource = newResource;
     if (notify) notifyListeners();
@@ -200,4 +248,32 @@ class PaymentsProvider with ChangeNotifier {
     if (normalized.isEmpty) return null;
     return normalized;
   }
+
+
+  void _ensureAutoRefreshTimer() {
+    if (_autoRefreshTimer != null) return;
+    _autoRefreshTimer = Timer.periodic(_autoRefreshInterval, (_) {
+      if (_resource.isLoading || _isLoadingMore) return;
+      unawaited(refreshSilently());
+    });
+  }
+
+  void _restartAutoRefreshTimer() {
+    if (_autoRefreshTimer == null) return;
+    _autoRefreshTimer?.cancel();
+    _autoRefreshTimer = null;
+    _ensureAutoRefreshTimer();
+  }
+
+  void _stopAutoRefreshTimer() {
+    _autoRefreshTimer?.cancel();
+    _autoRefreshTimer = null;
+    _autoRefreshRefs = 0;
+    _autoRefreshInterval = const Duration(seconds: 15);
+  }
+
+  void _pauseAutoRefreshTimer() {
+    _autoRefreshTimer?.cancel();
+    _autoRefreshTimer = null;
+  }
 }