using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using RomashkiContracts.Enums;
using RomashkiContracts.Extensions;
using RomashkiContracts.Infrastructure;
using System.Xml;
using RomashkiContracts.Exceptions;

namespace RomashkiContracts.DataModels;

public class SaleDataModel(string id, string workerId, string? buyerId, 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 string? BuyerId { get; private set; } = buyerId;
    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 value in the field Id is not a unique identifier");
        if (WorkerId.IsEmpty())
            throw new ValidationException("Field WorkerId is empty");
        if (!WorkerId.IsGuid())
            throw new ValidationException("The value in the field WorkerId is not a unique identifier");
        if (!BuyerId?.IsGuid() ?? !BuyerId?.IsEmpty() ?? false)
            throw new ValidationException("The value in the field BuyerId 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");
    }
}