save before flutter upgrade

lib/models/customers/customer_details.dart

@@ -0,0 +1,72 @@
+import 'dart:convert';
+
+import 'package:nethive_neo/models/models.dart';
+
+class CustomerDetails {
+  CustomerDetails({
+    required this.id,
+    required this.createdDate,
+    required this.firstName,
+    required this.lastName,
+    required this.email,
+    required this.billingAddress,
+    required this.status,
+    required this.phoneNumber,
+    required this.balance,
+    this.image,
+    required this.billCycle,
+    required this.services,
+    required this.notes,
+    required this.messages,
+  });
+
+  int id;
+  DateTime createdDate;
+  String firstName;
+  String lastName;
+  String email;
+  Address billingAddress;
+  String status;
+  String phoneNumber;
+  num balance;
+  String? image;
+  BillCycle billCycle;
+  List<Service> services;
+  List<Note> notes;
+  List<Message> messages;
+
+  String get fullName => '$firstName $lastName';
+
+  DateTime get billingDate {
+    final now = DateTime.now();
+    return DateTime(now.year, now.month, billCycle.day);
+  }
+
+  factory CustomerDetails.fromJson(String str) =>
+      CustomerDetails.fromMap(json.decode(str));
+
+  factory CustomerDetails.fromMap(Map<String, dynamic> json) {
+    CustomerDetails customer = CustomerDetails(
+      id: json["customer_id"],
+      createdDate: DateTime.parse(json['created_date']),
+      firstName: json['first_name'],
+      lastName: json['last_name'],
+      email: json["email"],
+      billingAddress: Address.fromMap(json['billing_address']),
+      status: json['status'],
+      phoneNumber: json['mobile_phone'],
+      balance: json['balance'] ?? 0.00,
+      image: json['image'],
+      billCycle: BillCycle.fromMap(json['billing_cycle']),
+      services: (json['services'] as List)
+          .map((service) => Service.fromMap(service))
+          .toList(),
+      notes: (json['notes'] as List).map((note) => Note.fromMap(note)).toList(),
+      messages: (json['messages'] as List)
+          .map((note) => Message.fromMap(note))
+          .toList(),
+    );
+
+    return customer;
+  }
+}