using DinerContracts.BindingModels;
using DinerContracts.ViewModels;
using DinerDataModels.Enums;
using DinerDataModels.Models;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Xml.Linq;

namespace DinerFileImplement.Models
{
    internal class Order : IOrderModel
    {
        public int SnackID { get; private set; }

        public int Count { get; set; }

        public double Sum { get; private set; }

        public OrderStatus Status { get; set; }

        public DateTime DateCreate { get; private set; }

        public DateTime? DateImplement { get; set; }

        public int ID { get; private set; }


        public static Order? Create(OrderBindingModel? model)
        {
            if (model == null) return null;
            return new Order()
            {
                ID = model.ID,
                SnackID = model.SnackID,
                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;
            return new Order()
            {
                ID = Convert.ToInt32(element.Attribute("ID")!.Value),
                SnackID = Convert.ToInt32(element.Element("SnackID")!.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 = string.IsNullOrEmpty(element.Element("DateImplement")!.Value) ? null : 
                                Convert.ToDateTime(element.Element("DateImplement")!.Value),
            };
		}
		public void Update(OrderBindingModel? model)
        {
            if (model == null) return;
            Status = model.Status;
            DateImplement = model?.DateImplement;
        }
        public OrderViewModel GetViewModel => new()
        {
            ID = ID,
            SnackID = SnackID,
            Count = Count,
            Sum = Sum,
            Status = Status,
            DateCreate = DateCreate,
            DateImplement = DateImplement,
        };
        public XElement GetXElement => new("Order", new XAttribute("ID", ID),
                                        new XElement("SnackID", SnackID),
                                        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()));
                
    }
}