using SnowMaidenContracts.Enums;
using SnowMaidenContracts.Exceptions;
using SnowMaidenContracts.Extensions;
using SnowMaidenContracts.Infrastructure;

namespace SnowMaidenContracts.DataModels;

// 2. Продажа, помимо работника, содержит клиента/покупателя (Buyer -> Sale) и СПИСОК ПРОДУКТОВ (3. SaleProduct -> Sale)

public class SaleDataModel(string id, string workerId, double sum, DiscountType discountType, double discount, bool isCancel, List<SaleProductDataModel> products) : IValidation
{
	public string Id { get; private set; } = id;

	public string WorkerId { get; private set; } = workerId;

	public DateTime SaleDate { get; private set; } = DateTime.UtcNow;

	public double Sum { get; private set; } = sum;

	public DiscountType DiscountType { get; private set; } = discountType;

	public double Discount { get; private set; } = discount;

	public bool IsCancel { get; private set; } = isCancel;

	public List<SaleProductDataModel> Products { get; private set; } = products;

	public void Validate()
	{
		if (Id.IsEmpty())
			throw new ValidationException("Field ID is empty");

		if (!Id.IsGuid())
			throw new ValidationException("The ID is not a unique identifier");

		if (WorkerId.IsEmpty())
			throw new ValidationException("Field Worker ID is empty");

		if (!WorkerId.IsGuid())
			throw new ValidationException("The Worker ID is NOT a unique identifier");

		if (Sum <= 0)
			throw new ValidationException("Field Sum is less than or equal to 0");

		if ((Products?.Count ?? 0) == 0)
			throw new ValidationException("The sale must include products");
	}
}