using SmallSoftwareContracts.Exceptions;
using SmallSoftwareContracts.Extensions;
using SmallSoftwareContracts.Infrastructure;
using System.Text.RegularExpressions;
using System.Xml;


namespace SmallSoftwareContracts.DataModels;


public class RequestDataModel : IValidation
{
    private readonly WorkerDataModel? _worker;
    public string Id { get; private set; }
    public string WorkerId { get; private set; }
    public DateTime RequestDate { get; private set; } = DateTime.UtcNow;
    public string Email { get; private set; }
    public double Sum { get; private set; }
    public bool IsCancel { get; private set; }
    public List<InstallationRequestDataModel>? Softwares { get; private set; }
    public string WorkerFIO => _worker?.FIO ?? string.Empty;
    public RequestDataModel(string id, string workerId, string email, bool isCancel, List<InstallationRequestDataModel> installationRequests, DateTime requestDate)
    {
        Id = id;
        WorkerId = workerId;
        Email = email;
        IsCancel = isCancel;
        Softwares = installationRequests;
        Sum = Softwares?.Sum(x => x.Price * x.Count) ?? 0;
    }

    public RequestDataModel(string id, string workerId, string email, double sum, bool isCancel,
    List<InstallationRequestDataModel> installationRequests, WorkerDataModel worker, DateTime requestDate)
    : this(id, workerId, email, isCancel, installationRequests, requestDate)
    {
        Sum = sum;
        _worker = worker;
    }


    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 (Sum <= 0)
            throw new ValidationException("Field Sum is less than or equal to 0");
        if ((Softwares?.Count ?? 0) == 0)
            throw new ValidationException("The request must include products");
        if (!Regex.IsMatch(Email, @"^[^@\s]+@[^@\s]+\.[^@\s]+$"))
        {
            throw new ValidationException("Invalid email format");
        }
    }
}