using ConfectioneryDataModels.Enums;
using ConfectioneryDataModels.Models;
using ConfectioneryContracts.BindingModels;
using ConfectioneryContracts.ViewModels;
using System.Xml.Linq;

namespace ConfectioneryFileImplement.Models
{
	public class Order : IOrderModel
	{
		public int Id { get; private set; }
		public int ClientId { get; private set; }
		public int? ImplementerId { get; set; }
		public int PastryId { get; private set; }
		public int Count { get; private set; }
		public double Sum { get; private set; }
		public OrderStatus Status { get; private set; } = OrderStatus.Неизвестен;
		public DateTime DateCreate { get; private set; } = DateTime.Now;
		public DateTime? DateImplement { get; private set; }

		public static Order? Create(OrderBindingModel? model)
		{
			if (model == null)
			{
				return null;
			}
			return new Order()
			{
				Id = model.Id,
				PastryId = model.PastryId,
				ClientId = model.ClientId,
				ImplementerId = model.ImplementerId,
				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;
			}
			string dateImplement = element.Element("DateImplement")!.Value;
			return new Order()
			{
				Id = Convert.ToInt32(element.Attribute("Id")!.Value),
				PastryId = Convert.ToInt32(element.Element("PastryId")!.Value),
				ClientId = Convert.ToInt32(element.Element("ClientId")!.Value),
				ImplementerId = Convert.ToInt32(element.Element("ImplementerId")!.Value),
				Count = Convert.ToInt32(element.Element("Count")!.Value),
				Sum = Convert.ToDouble(element.Element("Sum")!.Value),
				Status = (OrderStatus)(Enum.Parse(typeof(OrderStatus), element.Element("Status")!.Value)),
				DateCreate = Convert.ToDateTime(element.Element("DateCreate")!.Value),
				DateImplement = (dateImplement == "" || dateImplement is null) ? Convert.ToDateTime(null) : Convert.ToDateTime(dateImplement)
			};
		}

		public void Update(OrderBindingModel? model)
		{
			if (model == null)
			{
				return;
			}
			Status = model.Status;
			if (model.Status == OrderStatus.Выдан) DateImplement = model.DateImplement;
		}

		public OrderViewModel GetViewModel => new()
		{
			Id = Id,
			PastryId = PastryId,
			ClientId = ClientId,
			ImplementerId = ImplementerId,
			Count = Count,
			Sum = Sum,
			Status = Status,
			DateCreate = DateCreate,
			DateImplement = DateImplement,
		};

		public XElement GetXElement => new("Order",
		   new XAttribute("Id", Id),
		   new XElement("PastryId", PastryId.ToString()),
		   new XElement("ClientId", ClientId.ToString()),
		   new XElement("ImplementerId", ImplementerId),
		   new XElement("Count", Count.ToString()),
		   new XElement("Sum", Sum.ToString()),
		   new XElement("Status", Status.ToString()),
		   new XElement("DateCreate", DateCreate.ToString()),
		   new XElement("DateImplement", DateImplement.ToString()));
	}
}