using ComputersShopContracts.BindingModels;
using ComputersShopContracts.ViewModels;
using ComputersShopDataModels.Enums;
using ComputersShopDataModels.Models;
using System.Xml.Linq;

namespace ComputersShopFileImplement.Models
{
    public class Order : IOrderModel
    {
        public int Id { get; private set; }

        public int ComputerId { get; private set; }

        public int Count { get; private set; }

        public double Sum { get; private set; }

        public OrderStatus Status { get; set; } = OrderStatus.Неизвестен;

        public DateTime DateCreate { get; set; } = DateTime.Now;

        public DateTime? DateImplement { get; set; }

        public static Order? Create(OrderBindingModel? model)
        {
            if (model == null)
            {
                return null;
            }
            return new Order()
            {
                Id = model.Id,
                ComputerId = model.ComputerId,
                Count = model.Count,
                Sum = model.Sum,
                Status = model.Status,
                DateCreate = model.DateCreate,
                DateImplement = model.DateImplement
            };
        }

        public static Order? Create(XElement element)
        {
            if (element == null)
            {
                return null;
            }
            DateTime? dateImplement = null;
            if (element.Element("DateImplement")!.Value != "")
            {
                dateImplement = Convert.ToDateTime(element.Element("DateImplement")!.Value);
            }
            return new Order()
            {
                Id = Convert.ToInt32(element.Attribute("Id")!.Value),
                ComputerId = Convert.ToInt32(element.Element("ComputerId")!.Value),
                Count = Convert.ToInt32(element.Element("Count")!.Value),
                Sum = Convert.ToDouble(element.Element("Sum")!.Value),
                Status = (OrderStatus)Convert.ToInt32(element.Element("Status")!.Value),
                DateCreate = Convert.ToDateTime(element.Element("DateCreate")!.Value),
                DateImplement = dateImplement
            };
        }

        public void Update(OrderBindingModel? model)
        {
            if (model == null)
            {
                return;
            }
            Status = model.Status;
            if (model.DateImplement != null)
            {
                DateImplement = model.DateImplement;
            }
        }
        public OrderViewModel GetViewModel => new()
        {
            Id = Id,
            ComputerId = ComputerId,
            Count = Count,
            Sum = Sum,
            Status = Status,
            DateCreate = DateCreate,
            DateImplement = DateImplement
        };

        public XElement GetXElement => new
       (
       "Order",
       new XAttribute("Id", Id),
       new XElement("ComputerId", ComputerId),
       new XElement("Count", Count),
       new XElement("Sum", Sum),
       new XElement("Status", (int)Status),
       new XElement("DateCreate", DateCreate),
       new XElement("DateImplement", DateImplement)
       );
    }
}