mece request / payment economics

frontend/pshared/lib/data/dto/payment/intent/payment.dart

@@ -7,7 +7,6 @@ import 'package:pshared/data/dto/money.dart';
 
 part 'payment.g.dart';
 
-
 @JsonSerializable()
 class PaymentIntentDTO {
   final String? kind;
@@ -20,9 +19,6 @@ class PaymentIntentDTO {
   @JsonKey(name: 'settlement_mode')
   final String? settlementMode;
 
-  @JsonKey(name: 'settlement_currency')
-  final String? settlementCurrency;
-
   @JsonKey(name: "fee_treatment")
   final String? feeTreatment;
 
@@ -36,12 +32,12 @@ class PaymentIntentDTO {
     this.amount,
     this.fx,
     this.settlementMode,
-    this.settlementCurrency,
     this.attributes,
     this.customer,
     this.feeTreatment,
   });
 
-  factory PaymentIntentDTO.fromJson(Map<String, dynamic> json) => _$PaymentIntentDTOFromJson(json);
+  factory PaymentIntentDTO.fromJson(Map<String, dynamic> json) =>
+      _$PaymentIntentDTOFromJson(json);
   Map<String, dynamic> toJson() => _$PaymentIntentDTOToJson(this);
 }

frontend/pshared/lib/data/mapper/payment/intent/payment.dart

@@ -7,7 +7,6 @@ import 'package:pshared/data/mapper/payment/intent/fx.dart';
 import 'package:pshared/data/mapper/money.dart';
 import 'package:pshared/models/payment/intent.dart';
 
-
 extension PaymentIntentMapper on PaymentIntent {
   PaymentIntentDTO toDTO() => PaymentIntentDTO(
     kind: paymentKindToValue(kind),
@@ -16,7 +15,6 @@ extension PaymentIntentMapper on PaymentIntent {
     amount: amount?.toDTO(),
     fx: fx?.toDTO(),
     settlementMode: settlementModeToValue(settlementMode),
-    settlementCurrency: settlementCurrency,
     attributes: attributes,
     customer: customer?.toDTO(),
     feeTreatment: feeTreatmentToValue(feeTreatment),
@@ -31,7 +29,6 @@ extension PaymentIntentDTOMapper on PaymentIntentDTO {
     amount: amount?.toDomain(),
     fx: fx?.toDomain(),
     settlementMode: settlementModeFromValue(settlementMode),
-    settlementCurrency: settlementCurrency,
     attributes: attributes,
     customer: customer?.toDomain(),
     feeTreatment: feeTreatmentFromValue(feeTreatment),

frontend/pshared/lib/models/payment/intent.dart

@@ -6,7 +6,6 @@ import 'package:pshared/models/payment/methods/data.dart';
 import 'package:pshared/models/money.dart';
 import 'package:pshared/models/payment/settlement_mode.dart';
 
-
 class PaymentIntent {
   final PaymentKind kind;
   final PaymentMethodData? source;
@@ -15,7 +14,6 @@ class PaymentIntent {
   final FxIntent? fx;
   final FeeTreatment feeTreatment;
   final SettlementMode settlementMode;
-  final String? settlementCurrency;
   final Map<String, String>? attributes;
   final Customer? customer;
 
@@ -26,7 +24,6 @@ class PaymentIntent {
     this.amount,
     this.fx,
     this.settlementMode = SettlementMode.unspecified,
-    this.settlementCurrency,
     this.attributes,
     this.customer,
     required this.feeTreatment,

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

@@ -21,7 +21,6 @@ import 'package:pshared/provider/recipient/provider.dart';
 import 'package:pshared/utils/currency.dart';
 import 'package:pshared/utils/payment/fx_helpers.dart';
 
-
 class QuotationIntentBuilder {
   PaymentIntent? build({
     required PaymentAmountProvider payment,
@@ -45,8 +44,10 @@ class QuotationIntentBuilder {
       // TODO: adapt to possible other sources
       currency: sourceCurrency,
     );
-    final isCryptoToCrypto = paymentData is CryptoAddressPaymentMethod &&
-        (paymentData.asset?.tokenSymbol ?? '').trim().toUpperCase() == amount.currency;
+    final isCryptoToCrypto =
+        paymentData is CryptoAddressPaymentMethod &&
+        (paymentData.asset?.tokenSymbol ?? '').trim().toUpperCase() ==
+            amount.currency;
     final fxIntent = FxIntentHelper.buildSellBaseBuyQuote(
       baseCurrency: sourceCurrency,
       quoteCurrency: 'RUB', // TODO: exentd target currencies
@@ -61,15 +62,13 @@ class QuotationIntentBuilder {
         asset: PaymentAsset(
           tokenSymbol: selectedWallet.tokenSymbol ?? '',
           chain: selectedWallet.network ?? ChainNetwork.unspecified,
-        ) 
+        ),
       ),
       fx: fxIntent,
-      feeTreatment: payment.payerCoversFee ? FeeTreatment.addToSource : FeeTreatment.deductFromDestination,
+      feeTreatment: payment.payerCoversFee
+          ? FeeTreatment.addToSource
+          : FeeTreatment.deductFromDestination,
       settlementMode: SettlementMode.fixSource,
-      settlementCurrency: FxIntentHelper.resolveSettlementCurrency(
-        amount: amount,
-        fx: fxIntent,
-      ),
       customer: customer,
     );
   }
@@ -92,8 +91,9 @@ class QuotationIntentBuilder {
         : name.trim().split(RegExp(r'\s+'));
     final firstName = parts.isNotEmpty ? parts.first : null;
     final lastName = parts.length >= 2 ? parts.last : null;
-    final middleName =
-        parts.length > 2 ? parts.sublist(1, parts.length - 1).join(' ') : null;
+    final middleName = parts.length > 2
+        ? parts.sublist(1, parts.length - 1).join(' ')
+        : null;
 
     return Customer(
       id: id,
@@ -120,7 +120,9 @@ class QuotationIntentBuilder {
       return iban.accountHolder.trim();
     }
 
-    final bank = method?.bankAccountData ?? (data is RussianBankAccountPaymentMethod ? data : null);
+    final bank =
+        method?.bankAccountData ??
+        (data is RussianBankAccountPaymentMethod ? data : null);
     if (bank != null && bank.recipientName.trim().isNotEmpty) {
       return bank.recipientName.trim();
     }

frontend/pshared/test/payment/request_dto_format_test.dart

@@ -54,7 +54,6 @@ void main() {
           ),
           amount: MoneyDTO(amount: '10', currency: 'USD'),
           settlementMode: 'fix_received',
-          settlementCurrency: 'USD',
         ),
       );
 
@@ -68,7 +67,7 @@ void main() {
       final intent = json['intent'] as Map<String, dynamic>;
       expect(intent['kind'], equals('payout'));
       expect(intent['settlement_mode'], equals('fix_received'));
-      expect(intent['settlement_currency'], equals('USD'));
+      expect(intent.containsKey('settlement_currency'), isFalse);
 
       final source = intent['source'] as Map<String, dynamic>;
       final destination = intent['destination'] as Map<String, dynamic>;