using SmallSoftwareContracts.Exceptions;
using SmallSoftwareContracts.Extensions;
using SmallSoftwareContracts.Infrastructure;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace SmallSoftwareContracts.DataModels;

public class SoftwareHistoryDataModel(string softwareId, double oldPrice) : IValidation
{
    private readonly SoftwareDataModel? _software;
    public string SoftwareId { get; private set; } = softwareId;
    public double OldPrice { get; private set; } = oldPrice;
    public DateTime ChangeDate { get; private set; } = DateTime.UtcNow;

    public string SoftwareName => _software?.SoftwareName ?? string.Empty;
    public SoftwareHistoryDataModel(string softwareId, double oldPrice, DateTime
    changeDate, SoftwareDataModel software) : this(softwareId, oldPrice) 
    {
    ChangeDate = changeDate;
    _software = software;
    }

    public void Validate()
    {
        if (SoftwareId.IsEmpty())
            throw new ValidationException("Field SoftwareId is empty");
        if (!SoftwareId.IsGuid())
            throw new ValidationException("The value in the field SoftwareId is not a unique identifier");
        if (OldPrice <= 0)
            throw new ValidationException("Field OldPrice is less than or equal to 0");
    }
}