Swap updates

lib/models/exchange/aggregate_currency.dart

@@ -8,9 +8,10 @@
  *
  */
 
+import 'package:tuple/tuple.dart';
+
 import '../isar/exchange_cache/currency.dart';
 import '../isar/exchange_cache/pair.dart';
-import 'package:tuple/tuple.dart';
 
 class AggregateCurrency {
   final Map<String, Currency?> _map = {};
@@ -29,6 +30,8 @@ class AggregateCurrency {
     return _map[exchangeName];
   }
 
+  String? networkFor(String exchangeName) => forExchange(exchangeName)?.network;
+
   String get ticker => _map.values.first!.ticker;
 
   String get name => _map.values.first!.name;

lib/models/exchange/change_now/cn_exchange_transaction.dart

@@ -0,0 +1,174 @@
+/*
+ * This file is part of Stack Wallet.
+ *
+ * Copyright (c) 2025 Cypher Stack
+ * All Rights Reserved.
+ * The code is distributed under GPLv3 license, see LICENSE file for details.
+ * Generated by Cypher Stack on 2025-04-26
+ *
+ */
+
+import 'package:decimal/decimal.dart';
+import 'package:uuid/uuid.dart';
+
+import 'cn_exchange_transaction_status.dart';
+
+class CNExchangeTransaction {
+  /// The amount being sent from the user.
+  final Decimal fromAmount;
+
+  /// The amount the user will receive.
+  final Decimal toAmount;
+
+  /// The type of exchange flow. Either "standard" or "fixed-rate".
+  final String flow;
+
+  /// Direction of the exchange: "direct" or "reverse".
+  final String type;
+
+  /// The address to which the user sends the input currency.
+  final String payinAddress;
+
+  /// The address where the exchanged currency will be sent.
+  final String payoutAddress;
+
+  /// Extra ID for payout address (e.g., memo, tag). Empty string if not used.
+  final String payoutExtraId;
+
+  /// Currency ticker being exchanged from (e.g., "btc").
+  final String fromCurrency;
+
+  /// Currency ticker being exchanged to (e.g., "xmr").
+  final String toCurrency;
+
+  /// Refund address in case of failure or timeout.
+  final String refundAddress;
+
+  /// Extra ID for the refund address (if needed). Empty string if not used.
+  final String refundExtraId;
+
+  /// Deadline until which the estimated rate or transaction is valid.
+  final DateTime validUntil;
+
+  /// Date when transaction was created.
+  final DateTime date;
+
+  /// Unique transaction identifier.
+  final String id;
+
+  /// The user-defined or system-determined amount in a "directed" flow.
+  final Decimal? directedAmount;
+
+  /// Network of the currency being sent.
+  final String fromNetwork;
+
+  /// Network of the currency being received.
+  final String toNetwork;
+
+  final String uuid;
+
+  final CNExchangeTransactionStatus? statusObject;
+
+  const CNExchangeTransaction({
+    required this.fromAmount,
+    required this.toAmount,
+    required this.flow,
+    required this.type,
+    required this.payinAddress,
+    required this.payoutAddress,
+    required this.payoutExtraId,
+    required this.fromCurrency,
+    required this.toCurrency,
+    required this.refundAddress,
+    required this.refundExtraId,
+    required this.validUntil,
+    required this.date,
+    required this.id,
+    required this.directedAmount,
+    required this.fromNetwork,
+    required this.toNetwork,
+    required this.uuid,
+    this.statusObject,
+  });
+
+  factory CNExchangeTransaction.fromJson(Map<String, dynamic> json) {
+    return CNExchangeTransaction(
+      fromAmount: Decimal.parse(json["fromAmount"].toString()),
+      toAmount: Decimal.parse(json["toAmount"].toString()),
+      flow: json["flow"] as String,
+      type: json["type"] as String,
+      payinAddress: json["payinAddress"] as String,
+      payoutAddress: json["payoutAddress"] as String,
+      payoutExtraId: json["payoutExtraId"] as String? ?? "",
+      fromCurrency: json["fromCurrency"] as String,
+      toCurrency: json["toCurrency"] as String,
+      refundAddress: json["refundAddress"] as String,
+      refundExtraId: json["refundExtraId"] as String,
+      validUntil: DateTime.parse(json["validUntil"] as String),
+      date: DateTime.parse(json["date"] as String),
+      id: json["id"] as String,
+      directedAmount: Decimal.tryParse(json["directedAmount"].toString()),
+      fromNetwork: json["fromNetwork"] as String? ?? "",
+      toNetwork: json["toNetwork"] as String? ?? "",
+      uuid: json["uuid"] as String? ?? const Uuid().v1(),
+      statusObject:
+          json["statusObject"] is Map<String, dynamic>
+              ? CNExchangeTransactionStatus.fromMap(
+                json["statusObject"] as Map<String, dynamic>,
+              )
+              : null,
+    );
+  }
+
+  Map<String, dynamic> toMap() {
+    return {
+      "fromAmount": fromAmount,
+      "toAmount": toAmount,
+      "flow": flow,
+      "type": type,
+      "payinAddress": payinAddress,
+      "payoutAddress": payoutAddress,
+      "payoutExtraId": payoutExtraId,
+      "fromCurrency": fromCurrency,
+      "toCurrency": toCurrency,
+      "refundAddress": refundAddress,
+      "refundExtraId": refundExtraId,
+      "validUntil": validUntil.toIso8601String(),
+      "date": date.toIso8601String(),
+      "id": id,
+      "directedAmount": directedAmount,
+      "fromNetwork": fromNetwork,
+      "uuid": uuid,
+      "statusObject": statusObject?.toMap(),
+    };
+  }
+
+  CNExchangeTransaction copyWithStatus(CNExchangeTransactionStatus? status) {
+    return CNExchangeTransaction(
+      fromAmount: fromAmount,
+      toAmount: toAmount,
+      flow: flow,
+      type: type,
+      payinAddress: payinAddress,
+      payoutAddress: payoutAddress,
+      payoutExtraId: payoutExtraId,
+      fromCurrency: fromCurrency,
+      toCurrency: toCurrency,
+      refundAddress: refundAddress,
+      refundExtraId: refundExtraId,
+      validUntil: validUntil,
+      date: date,
+      id: id,
+      directedAmount: directedAmount,
+      fromNetwork: fromNetwork,
+      toNetwork: toNetwork,
+      uuid: uuid,
+      statusObject: status,
+    );
+  }
+
+  @override
+  String toString() {
+    return "CNExchangeTransaction: ${toMap()}";
+  }
+}

lib/models/exchange/change_now/cn_exchange_transaction_status.dart

@@ -0,0 +1,172 @@
+import 'package:decimal/decimal.dart';
+
+enum ChangeNowTransactionStatus {
+  New,
+  Waiting,
+  Confirming,
+  Exchanging,
+  Sending,
+  Finished,
+  Failed,
+  Refunded,
+  Verifying,
+}
+
+extension ChangeNowTransactionStatusExt on ChangeNowTransactionStatus {
+  String get lowerCaseName => name.toLowerCase();
+}
+
+ChangeNowTransactionStatus changeNowTransactionStatusFromStringIgnoreCase(
+  String string,
+) {
+  for (final value in ChangeNowTransactionStatus.values) {
+    if (value.lowerCaseName == string.toLowerCase()) {
+      return value;
+    }
+  }
+  throw ArgumentError(
+    "String value does not match any known ChangeNowTransactionStatus",
+  );
+}
+
+class CNExchangeTransactionStatus {
+  final String id;
+  final ChangeNowTransactionStatus status;
+  final bool actionsAvailable;
+  final String fromCurrency;
+  final String fromNetwork;
+  final String toCurrency;
+  final String toNetwork;
+  final String? expectedAmountFrom;
+  final String? expectedAmountTo;
+  final String? amountFrom;
+  final String? amountTo;
+  final String payinAddress;
+  final String payoutAddress;
+  final String? payinExtraId;
+  final String? payoutExtraId;
+  final String? refundAddress;
+  final String? refundExtraId;
+  final String createdAt;
+  final String updatedAt;
+  final String? depositReceivedAt;
+  final String? payinHash;
+  final String? payoutHash;
+  final String fromLegacyTicker;
+  final String toLegacyTicker;
+  final String? refundHash;
+  final String? refundAmount;
+  final int? userId;
+  final String? validUntil;
+
+  const CNExchangeTransactionStatus({
+    required this.id,
+    required this.status,
+    required this.actionsAvailable,
+    required this.fromCurrency,
+    required this.fromNetwork,
+    required this.toCurrency,
+    required this.toNetwork,
+    this.expectedAmountFrom,
+    this.expectedAmountTo,
+    this.amountFrom,
+    this.amountTo,
+    required this.payinAddress,
+    required this.payoutAddress,
+    this.payinExtraId,
+    this.payoutExtraId,
+    this.refundAddress,
+    this.refundExtraId,
+    required this.createdAt,
+    required this.updatedAt,
+    this.depositReceivedAt,
+    this.payinHash,
+    this.payoutHash,
+    required this.fromLegacyTicker,
+    required this.toLegacyTicker,
+    this.refundHash,
+    this.refundAmount,
+    this.userId,
+    this.validUntil,
+  });
+
+  factory CNExchangeTransactionStatus.fromMap(Map<String, dynamic> map) {
+    return CNExchangeTransactionStatus(
+      id: map["id"] as String,
+      status: changeNowTransactionStatusFromStringIgnoreCase(
+        map["status"] as String,
+      ),
+      actionsAvailable: map["actionsAvailable"] as bool,
+      fromCurrency: map["fromCurrency"] as String? ?? "",
+      fromNetwork: map["fromNetwork"] as String? ?? "",
+      toCurrency: map["toCurrency"] as String? ?? "",
+      toNetwork: map["toNetwork"] as String? ?? "",
+      expectedAmountFrom: _get(map["expectedAmountFrom"]),
+      expectedAmountTo: _get(map["expectedAmountTo"]),
+      amountFrom: _get(map["amountFrom"]),
+      amountTo: _get(map["amountTo"]),
+      payinAddress: map["payinAddress"] as String? ?? "",
+      payoutAddress: map["payoutAddress"] as String? ?? "",
+      payinExtraId: map["payinExtraId"] as String?,
+      payoutExtraId: map["payoutExtraId"] as String?,
+      refundAddress: map["refundAddress"] as String?,
+      refundExtraId: map["refundExtraId"] as String?,
+      createdAt: map["createdAt"] as String? ?? "",
+      updatedAt: map["updatedAt"] as String? ?? "",
+      depositReceivedAt: map["depositReceivedAt"] as String?,
+      payinHash: map["payinHash"] as String?,
+      payoutHash: map["payoutHash"] as String?,
+      fromLegacyTicker: map["fromLegacyTicker"] as String? ?? "",
+      toLegacyTicker: map["toLegacyTicker"] as String? ?? "",
+      refundHash: map["refundHash"] as String?,
+      refundAmount: _get(map["refundAmount"]),
+      userId:
+          map["userId"] is int
+              ? map["userId"] as int
+              : int.tryParse(map["userId"].toString()),
+      validUntil: map["validUntil"] as String?,
+    );
+  }
+
+  Map<String, dynamic> toMap() {
+    return {
+      "id": id,
+      "status": status,
+      "actionsAvailable": actionsAvailable,
+      "fromCurrency": fromCurrency,
+      "fromNetwork": fromNetwork,
+      "toCurrency": toCurrency,
+      "toNetwork": toNetwork,
+      "expectedAmountFrom": expectedAmountFrom,
+      "expectedAmountTo": expectedAmountTo,
+      "amountFrom": amountFrom,
+      "amountTo": amountTo,
+      "payinAddress": payinAddress,
+      "payoutAddress": payoutAddress,
+      "payinExtraId": payinExtraId,
+      "payoutExtraId": payoutExtraId,
+      "refundAddress": refundAddress,
+      "refundExtraId": refundExtraId,
+      "createdAt": createdAt,
+      "updatedAt": updatedAt,
+      "depositReceivedAt": depositReceivedAt,
+      "payinHash": payinHash,
+      "payoutHash": payoutHash,
+      "fromLegacyTicker": fromLegacyTicker,
+      "toLegacyTicker": toLegacyTicker,
+      "refundHash": refundHash,
+      "refundAmount": refundAmount,
+      "userId": userId,
+      "validUntil": validUntil,
+    };
+  }
+
+  static String? _get(dynamic value) {
+    if (value is String) return value;
+    if (value is num) return Decimal.tryParse(value.toString())?.toString();
+    return null;
+  }
+
+  @override
+  String toString() => "CNExchangeTransactionStatus: ${toMap()}";
+}