using FurnitureAssemblyContracts.BindingModels;
using FurnitureAssemblyContracts.ViewModels;
using FurnitureAssemblyDataModels.Enums;
using FurnitureAssemblyDataModels.Models;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Reflection;
using System.Runtime.Serialization;
using System.Text;
using System.Threading.Tasks;
using System.Xml.Linq;

namespace FurnitureAssemblyFileImplement.Models
{
    [DataContract]
    public class Order : IOrderModel
    {
        [DataMember]
        public int FurnitureId { get; private set; }
        [DataMember]
        public string FurnitureName { get; private set; } = string.Empty;
        [DataMember]
        public int Count { get; private set; }
        [DataMember]
        public double Sum { get; private set; }
        [DataMember]
        public OrderStatus Status { get; private set; } = OrderStatus.Неизвестен;
        [DataMember]
        public DateTime DateCreate { get; private set; } = DateTime.Now;
        [DataMember]
        public DateTime? DateImplement { get; private set; }
        [DataMember]
        public int ClientId { get; private set; }
        [DataMember]
        public int Id { get; private set; }
        [DataMember]
        public int? ImplementerId { get; private set; } = null;

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

        public static Order? Create(XElement element)
        {
            if (element == null)
            {
                return null;
            }
            var order = new Order()
            {
                Id = Convert.ToInt32(element.Attribute("Id")!.Value),
                FurnitureId = Convert.ToInt32(element.Element("FurnitureId")!.Value),
                FurnitureName = element.Element("FurnitureName")!.Value,
                Count = Convert.ToInt32(element.Element("Count")!.Value),
                Sum = Convert.ToDouble(element.Element("Sum")!.Value),                
                DateCreate = DateTime.ParseExact(element.Element("DateCreate")!.Value, "G", null),
                ClientId = Convert.ToInt32(element.Element("ClientId")!.Value),
                ImplementerId = Convert.ToInt32(element.Element("ImplementerId")?.Value)
            };
            DateTime.TryParse(element.Element("DateImplement")!.Value, out DateTime dateImpl);
            
            order.DateImplement = dateImpl;

            if (!Enum.TryParse(element.Element("Status")!.Value, out OrderStatus status))
            {
                return null;
            }
            order.Status = status;
            return order;
        }

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

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

        public XElement GetXElement => new("Order",
          new XAttribute("Id", Id),
          new XElement("ClientId", ClientId),
          new XElement("FurnitureId", FurnitureId),
          new XElement("FurnitureName", FurnitureName),
          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()),
          new XElement("ImplemwenterId", ImplementerId.ToString()));
    }
}