// Version: 1.0.0
import '../services/database_helper.dart';

class Product {
  int? id;
  String productCode;
  String name;
  int price; // 単価（税込）
  int stock;
  String? category;
  String? unit;
  int isDeleted = 0; // Soft delete flag

  Product({
    this.id,
    required this.productCode,
    required this.name,
    required this.price,
    this.stock = 0,
    this.category,
    this.unit,
    this.isDeleted = 0,
  });

  Map<String, dynamic> toMap() {
    return {
      'id': id,
      'product_code': productCode,
      'name': name,
      'price': price,
      'stock': stock,
      'category': category ?? '',
      'unit': unit ?? '',
      'is_deleted': isDeleted,
    };
  }

  factory Product.fromMap(Map<String, dynamic> map) {
    return Product(
      id: map['id'] as int?,
      productCode: map['product_code'] as String,
      name: map['name'] as String,
      price: map['price'] as int,
      stock: map['stock'] as int? ?? 0,
      category: map['category'] as String?,
      unit: map['unit'] as String?,
      isDeleted: map['is_deleted'] as int? ?? 0,
    );
  }

  Product copyWith({
    int? id,
    String? productCode,
    String? name,
    int? price,
    int? stock,
    String? category,
    String? unit,
    int? isDeleted,
  }) {
    return Product(
      id: id ?? this.id,
      productCode: productCode ?? this.productCode,
      name: name ?? this.name,
      price: price ?? this.price,
      stock: stock ?? this.stock,
      category: category ?? this.category,
      unit: unit ?? this.unit,
      isDeleted: isDeleted ?? this.isDeleted,
    );
  }

  // 税込価格（引数にない場合は自身）
  int get taxPrice => price;
}