minor fixes

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

@@ -96,13 +96,12 @@ class QuotationIntentBuilder {
 
     if (name != null && name.isNotEmpty) {
       final parts = name.split(RegExp(r'\s+'));
-      if (parts.length == 1) {
-        firstName = parts.first;
-      } else if (parts.length == 2) {
+      if (parts.isNotEmpty) {
         firstName = parts.first;
+      }
+      if (parts.length == 2) {
         lastName = parts.last;
-      } else {
-        firstName = parts.first;
+      } else if (parts.length > 2) {
         lastName = parts.last;
         middleName = parts.sublist(1, parts.length - 1).join(' ');
       }

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

@@ -1,7 +1,7 @@
 import 'package:flutter/foundation.dart';
 
 import 'package:logging/logging.dart';
-import 'package:collection/collection.dart';
+import 'dart:convert';
 
 import 'package:uuid/uuid.dart';
 
@@ -23,6 +23,7 @@ import 'package:pshared/provider/resource.dart';
 import 'package:pshared/provider/payment/quotation/auto_refresh.dart';
 import 'package:pshared/provider/payment/quotation/intent_builder.dart';
 import 'package:pshared/service/payment/quotation.dart';
+import 'package:pshared/utils/exception.dart';
 
 
 class QuotationProvider extends ChangeNotifier {
@@ -36,6 +37,11 @@ class QuotationProvider extends ChangeNotifier {
       QuotationAutoRefreshController();
   AutoRefreshMode _autoRefreshMode = AutoRefreshMode.on;
 
+  QuotationProvider() {
+    addListener(_handleStateChanged);
+    _syncAutoRefresh();
+  }
+
   void update(
     OrganizationsProvider venue, 
     PaymentAmountProvider payment,
@@ -53,11 +59,10 @@ class QuotationProvider extends ChangeNotifier {
       methods: methods,
     );
     if (intent == null) return;
-    final lastIntentDto = _lastIntent?.toDTO().toJson();
-    final isSameIntent = lastIntentDto != null &&
-        const DeepCollectionEquality().equals(intent.toDTO().toJson(), lastIntentDto);
-    if (isSameIntent) return;
-    getQuotation(intent);
+    final intentKey = _buildIntentKey(intent);
+    final lastIntent = _lastIntent;
+    if (lastIntent != null && intentKey == _buildIntentKey(lastIntent)) return;
+    getQuotation(intent, idempotencyKey: intentKey);
   }
 
   PaymentQuote? get quotation => _quotation.data;
@@ -86,7 +91,7 @@ class QuotationProvider extends ChangeNotifier {
     return timeLeft <= Duration.zero;
   }
 
-  QuoteStatusType get quoteStatusType {
+  QuoteStatusType get quoteStatus {
     if (isLoading) return QuoteStatusType.loading;
     if (error != null) return QuoteStatusType.error;
     if (quotation == null) return QuoteStatusType.missing;
@@ -103,34 +108,37 @@ class QuotationProvider extends ChangeNotifier {
     return createAsset(money.currency, money.amount);
   }
 
+  void _handleStateChanged() {
+    _syncAutoRefresh();
+  }
+
   void _setResource(Resource<PaymentQuote> quotation) {
     _quotation = quotation;
-    _syncAutoRefresh();
     notifyListeners();
   }
 
   void setAutoRefreshMode(AutoRefreshMode mode) {
     if (_autoRefreshMode == mode) return;
     _autoRefreshMode = mode;
-    _syncAutoRefresh();
     notifyListeners();
   }
 
   Future<PaymentQuote?> refreshQuotation() async {
     final intent = _lastIntent;
     if (intent == null) return null;
-    return getQuotation(intent);
+    return getQuotation(intent, idempotencyKey: _buildIntentKey(intent));
   }
 
-  Future<PaymentQuote?> getQuotation(PaymentIntent intent) async {
+  Future<PaymentQuote?> getQuotation(PaymentIntent intent, {String? idempotencyKey}) async {
     if (!_organizations.isOrganizationSet) throw StateError('Organization is not set');
     _lastIntent = intent;
+    final intentKey = idempotencyKey ?? _buildIntentKey(intent);
     try {
       _setResource(_quotation.copyWith(isLoading: true, error: null));
       final response = await QuotationService.getQuotation(
         _organizations.current.id, 
         QuotePaymentRequest(
-          idempotencyKey: Uuid().v4(),
+          idempotencyKey: intentKey,
           intent: intent.toDTO(),
         ),
       );
@@ -140,7 +148,7 @@ class QuotationProvider extends ChangeNotifier {
       _logger.warning('Failed to get quotation', e, st);
       _setResource(_quotation.copyWith(
         data: null,
-        error: e is Exception ? e : Exception(e.toString()),
+        error: toException(e),
         isLoading: false,
       ));
     }
@@ -169,7 +177,13 @@ class QuotationProvider extends ChangeNotifier {
 
   @override
   void dispose() {
+    removeListener(_handleStateChanged);
     _autoRefreshController.dispose();
     super.dispose();
   }
+
+  String _buildIntentKey(PaymentIntent intent) {
+    final payload = jsonEncode(intent.toDTO().toJson());
+    return Uuid().v5(Uuid.NAMESPACE_URL, 'quote:$payload');
+  }
 }