// Version: 2.0 - Customer モデル定義（リッチフィールド対応拡張）
import '../services/database_helper.dart';

/// 得意先情報モデル（リッチ編集機能拡張）
class Customer {
  int? id;
  String? customerCode; // データベースでは 'customer_code' カラム
  String name = '';
  String? email;
  String? phone;
  String? address;
  DateTime? createdAt;
  bool? enableEmail; // メール通知可フラグ（拡張）
  int? discountRate; // 割引率（％、拡張）

  Customer({
    this.id,
    required this.customerCode,
    required this.name,
    this.email,
    this.phone,
    this.address,
    DateTime? createdAt,
    this.enableEmail = false,
    this.discountRate,
  }) : createdAt = createdAt ?? DateTime.now();

  /// マップから Customer オブジェクトへ変換
  factory Customer.fromMap(Map<String, dynamic> map) {
    return Customer(
      id: map['id'] as int?,
      customerCode: map['customer_code'] as String? ?? '',
      name: map['name'] as String? ?? '',
      email: map['email'] as String?,
      phone: map['phone'] as String?,
      address: map['address'] as String?,
      createdAt: DateTime.parse(map['created_at'] as String),
      enableEmail: map['enable_email'] as bool?,
      discountRate: map['discount_rate'] as int?,
    );
  }

  /// Map に変換
  Map<String, dynamic> toMap() {
    return {
      'id': id,
      'customer_code': customerCode ?? '',
      'name': name,
      'email': email ?? '',
      'phone': phone ?? '',
      'address': address ?? '',
      'created_at': createdAt?.toIso8601String(),
      'enable_email': enableEmail ?? false,
      'discount_rate': discountRate,
    };
  }

  /// カピービルダ
  Customer copyWith({
    int? id,
    String? customerCode,
    String? name,
    String? email,
    String? phone,
    String? address,
    DateTime? createdAt,
    bool? enableEmail,
    int? discountRate,
  }) {
    return Customer(
      id: id ?? this.id,
      customerCode: customerCode ?? this.customerCode,
      name: name ?? this.name,
      email: email ?? this.email,
      phone: phone ?? this.phone,
      address: address ?? this.address,
      createdAt: createdAt ?? this.createdAt,
      enableEmail: enableEmail ?? this.enableEmail,
      discountRate: discountRate ?? this.discountRate,
    );
  }
}