jiu/client/lib/models/stock_in.dart

class StockInItem {
  final int? orderId;
  final int productId;
  final double quantity;
  final double unitPrice;
  final double totalPrice;
  final String? batchNo;
  // Denormalized for display
  final String? productName;
  final String? productCode;
  final String? productSeries;
  final String? productSpec;
  final String? productUnit;

  const StockInItem({
    this.orderId,
    required this.productId,
    required this.quantity,
    required this.unitPrice,
    required this.totalPrice,
    this.batchNo,
    this.productName,
    this.productCode,
    this.productSeries,
    this.productSpec,
    this.productUnit,
  });

  factory StockInItem.fromJson(Map<String, dynamic> json) => StockInItem(
        orderId: json['order_id'] != null
            ? (json['order_id'] as num).toInt()
            : null,
        productId: (json['product_id'] as num).toInt(),
        quantity: (json['quantity'] as num).toDouble(),
        unitPrice: (json['unit_price'] as num).toDouble(),
        totalPrice: (json['total_price'] as num).toDouble(),
        batchNo: json['batch_no'] as String?,
        productName: (json['product'] as Map<String, dynamic>?)?['name'] as String?,
        productCode: (json['product'] as Map<String, dynamic>?)?['code'] as String?,
        productSeries: (json['product'] as Map<String, dynamic>?)?['series'] as String?,
        productSpec: (json['product'] as Map<String, dynamic>?)?['spec'] as String?,
        productUnit: (json['product'] as Map<String, dynamic>?)?['unit'] as String?,
      );

  Map<String, dynamic> toJson() => {
        'product_id': productId,
        'quantity': quantity,
        'unit_price': unitPrice,
        'total_price': totalPrice,
        if (batchNo != null) 'batch_no': batchNo,
      };
}

class StockInOrder {
  final int id;
  final String orderNo;
  final String? type;
  final int warehouseId;
  final String? warehouseName;
  final int? partnerId;
  final String? partnerName;
  final int? operatorId;
  final String? operatorName;
  final int? reviewerId;
  final String? reviewerName;
  final String status; // draft | pending | approved | rejected
  final String? orderDate;
  final double? totalAmount;
  final String? remark;
  final List<StockInItem> items;

  const StockInOrder({
    required this.id,
    required this.orderNo,
    this.type,
    required this.warehouseId,
    this.warehouseName,
    this.partnerId,
    this.partnerName,
    this.operatorId,
    this.operatorName,
    this.reviewerId,
    this.reviewerName,
    required this.status,
    this.orderDate,
    this.totalAmount,
    this.remark,
    this.items = const [],
  });

  factory StockInOrder.fromJson(Map<String, dynamic> json) => StockInOrder(
        id: (json['id'] as num).toInt(),
        orderNo: json['order_no'] as String,
        type: json['type'] as String?,
        warehouseId: (json['warehouse_id'] as num).toInt(),
        warehouseName: (json['warehouse'] as Map<String, dynamic>?)?['name'] as String?,
        partnerId: json['partner_id'] != null
            ? (json['partner_id'] as num).toInt()
            : null,
        partnerName: (json['partner'] as Map<String, dynamic>?)?['name'] as String?,
        operatorId: json['operator_id'] != null
            ? (json['operator_id'] as num).toInt()
            : null,
        operatorName: (json['operator'] as Map<String, dynamic>?)?['real_name'] as String?,
        reviewerId: json['reviewer_id'] != null
            ? (json['reviewer_id'] as num).toInt()
            : null,
        reviewerName: (json['reviewer'] as Map<String, dynamic>?)?['real_name'] as String?,
        status: json['status'] as String,
        orderDate: json['order_date'] as String?,
        totalAmount: json['total_amount'] != null
            ? (json['total_amount'] as num).toDouble()
            : null,
        remark: json['remark'] as String?,
        items: json['items'] != null
            ? (json['items'] as List)
                .map((e) =>
                    StockInItem.fromJson(e as Map<String, dynamic>))
                .toList()
            : [],
      );
}