runable

lib/features/home/data/models/transaction_model.dart

@@ -0,0 +1,123 @@
+import 'package:hive_ce/hive.dart';
+import 'package:retail/core/constants/storage_constants.dart';
+import 'package:retail/features/home/data/models/cart_item_model.dart';
+
+part 'transaction_model.g.dart';
+
+/// Transaction model with Hive CE type adapter
+@HiveType(typeId: StorageConstants.transactionTypeId)
+class TransactionModel extends HiveObject {
+  /// Unique transaction identifier
+  @HiveField(0)
+  final String id;
+
+  /// List of cart items in this transaction
+  @HiveField(1)
+  final List<CartItemModel> items;
+
+  /// Subtotal amount (before tax and discount)
+  @HiveField(2)
+  final double subtotal;
+
+  /// Tax amount
+  @HiveField(3)
+  final double tax;
+
+  /// Discount amount
+  @HiveField(4)
+  final double discount;
+
+  /// Total amount (subtotal + tax - discount)
+  @HiveField(5)
+  final double total;
+
+  /// Transaction completion timestamp
+  @HiveField(6)
+  final DateTime completedAt;
+
+  /// Payment method used (e.g., 'cash', 'card', 'digital')
+  @HiveField(7)
+  final String paymentMethod;
+
+  TransactionModel({
+    required this.id,
+    required this.items,
+    required this.subtotal,
+    required this.tax,
+    required this.discount,
+    required this.total,
+    required this.completedAt,
+    required this.paymentMethod,
+  });
+
+  /// Get total number of items in transaction
+  int get totalItems => items.fold(0, (sum, item) => sum + item.quantity);
+
+  /// Create a copy with updated fields
+  TransactionModel copyWith({
+    String? id,
+    List<CartItemModel>? items,
+    double? subtotal,
+    double? tax,
+    double? discount,
+    double? total,
+    DateTime? completedAt,
+    String? paymentMethod,
+  }) {
+    return TransactionModel(
+      id: id ?? this.id,
+      items: items ?? this.items,
+      subtotal: subtotal ?? this.subtotal,
+      tax: tax ?? this.tax,
+      discount: discount ?? this.discount,
+      total: total ?? this.total,
+      completedAt: completedAt ?? this.completedAt,
+      paymentMethod: paymentMethod ?? this.paymentMethod,
+    );
+  }
+
+  /// Convert to JSON
+  Map<String, dynamic> toJson() {
+    return {
+      'id': id,
+      'items': items.map((item) => item.toJson()).toList(),
+      'subtotal': subtotal,
+      'tax': tax,
+      'discount': discount,
+      'total': total,
+      'completedAt': completedAt.toIso8601String(),
+      'paymentMethod': paymentMethod,
+    };
+  }
+
+  /// Create from JSON
+  factory TransactionModel.fromJson(Map<String, dynamic> json) {
+    return TransactionModel(
+      id: json['id'] as String,
+      items: (json['items'] as List)
+          .map((item) => CartItemModel.fromJson(item as Map<String, dynamic>))
+          .toList(),
+      subtotal: (json['subtotal'] as num).toDouble(),
+      tax: (json['tax'] as num).toDouble(),
+      discount: (json['discount'] as num).toDouble(),
+      total: (json['total'] as num).toDouble(),
+      completedAt: DateTime.parse(json['completedAt'] as String),
+      paymentMethod: json['paymentMethod'] as String,
+    );
+  }
+
+  @override
+  String toString() {
+    return 'TransactionModel(id: $id, total: $total, items: ${items.length}, method: $paymentMethod)';
+  }
+
+  @override
+  bool operator ==(Object other) {
+    if (identical(this, other)) return true;
+
+    return other is TransactionModel && other.id == id;
+  }
+
+  @override
+  int get hashCode => id.hashCode;
+}