class Customer {
  final int? id;
  final int? userId;
  final String name;
  final String? email;
  final String? phone;
  final String? address;
  final String? gstin;
  final String? idNumber;
  final int? stateId;
  final String? photoUrl;
  final DateTime? createdAt;
  
  // New fields
  final String? fatherName;
  final String? gender;
  final int? age;

  Customer({
    this.id,
    this.userId,
    required this.name,
    this.email,
    this.phone,
    this.address,
    this.gstin,
    this.idNumber,
    this.stateId,
    this.photoUrl,
    this.createdAt,
    this.fatherName,
    this.gender,
    this.age,
  });

  factory Customer.fromJson(Map<String, dynamic> json) {
    return Customer(
      id: json['id'],
      userId: json['userId'],
      name: json['name'],
      email: json['email'],
      phone: json['phone'],
      address: json['address'],
      gstin: json['gstin'],
      idNumber: json['idNumber'],
      stateId: json['stateId'],
      photoUrl: json['photoUrl'],
      fatherName: json['fatherName'],
      gender: json['gender'],
      age: json['age'],
      createdAt: json['createdAt'] != null ? DateTime.parse(json['createdAt']) : null,
    );
  }

  Map<String, dynamic> toJson() {
    final Map<String, dynamic> data = {};
    if (id != null) data['id'] = id;
    if (userId != null) data['userId'] = userId;
    data['name'] = name;
    if (email != null) data['email'] = email;
    if (phone != null) data['phone'] = phone;
    if (address != null) data['address'] = address;
    if (gstin != null) data['gstin'] = gstin;
    if (idNumber != null) data['idNumber'] = idNumber;
    if (stateId != null) data['stateId'] = stateId;
    if (photoUrl != null) data['photoUrl'] = photoUrl;
    if (fatherName != null) data['fatherName'] = fatherName;
    if (gender != null) data['gender'] = gender;
    if (age != null) data['age'] = age;
    return data;
  }
}