update

lib/shared/models/transaction.dart

@@ -2,6 +2,8 @@ import 'package:flutter/foundation.dart';
 
 enum TransactionType { income, expense }
 
+enum RecurrenceType { none, daily, weekly, monthly }
+
 @immutable
 class Transaction {
   final String id;
@@ -10,6 +12,10 @@ class Transaction {
   final TransactionType type;
   final DateTime date;
   final String? note;
+  final RecurrenceType recurrence;
+  final DateTime? lastOccurrence;
+  final String currency;
+  final String currencyCode;
 
   const Transaction({
     required this.id,
@@ -18,6 +24,10 @@ class Transaction {
     required this.type,
     required this.date,
     this.note,
+    this.recurrence = RecurrenceType.none,
+    this.lastOccurrence,
+    this.currency = '\$',
+    this.currencyCode = 'USD',
   });
 
   factory Transaction.fromJson(Map<String, dynamic> json) => Transaction(
@@ -29,6 +39,17 @@ class Transaction {
         ),
         date: DateTime.parse(json['date'] as String),
         note: json['note'] as String?,
+        recurrence: json['recurrence'] != null
+            ? RecurrenceType.values.firstWhere(
+                (e) => e.name == json['recurrence'],
+                orElse: () => RecurrenceType.none,
+              )
+            : RecurrenceType.none,
+        lastOccurrence: json['lastOccurrence'] != null
+            ? DateTime.parse(json['lastOccurrence'] as String)
+            : null,
+        currency: json['currency'] as String? ?? '\$',
+        currencyCode: json['currencyCode'] as String? ?? 'USD',
       );
 
   Map<String, dynamic> toJson() => {
@@ -38,6 +59,10 @@ class Transaction {
         'type': type.name,
         'date': date.toIso8601String(),
         'note': note,
+        'recurrence': recurrence.name,
+        'lastOccurrence': lastOccurrence?.toIso8601String(),
+        'currency': currency,
+        'currencyCode': currencyCode,
       };
 
   Transaction copyWith({
@@ -47,6 +72,10 @@ class Transaction {
     TransactionType? type,
     DateTime? date,
     String? note,
+    RecurrenceType? recurrence,
+    DateTime? lastOccurrence,
+    String? currency,
+    String? currencyCode,
   }) =>
       Transaction(
         id: id ?? this.id,
@@ -55,5 +84,9 @@ class Transaction {
         type: type ?? this.type,
         date: date ?? this.date,
         note: note ?? this.note,
+        recurrence: recurrence ?? this.recurrence,
+        lastOccurrence: lastOccurrence ?? this.lastOccurrence,
+        currency: currency ?? this.currency,
+        currencyCode: currencyCode ?? this.currencyCode,
       );
 }