PIbd-23-Radaev-A.V.-GiftShop/GiftShop/GiftShopFileImplement/Models/Component.cs

using GiftShopContracts.BindingModels;
using GiftShopContracts.ViewModels;
using GiftShopDataModels.Models;
using System.Runtime.Serialization;
using System.Xml.Linq;

namespace GiftShopFileImplement.Models
{
	[DataContract]
	public class Component : IComponentModel
    {
		[DataMember]
		public int Id { get; private set; }

		[DataMember]
		public string ComponentName { get; private set; } = string.Empty;

		[DataMember]
		public double Cost { get; set; }

        public static Component? Create(ComponentBindingModel model) 
        {
            if (model == null)
            {
                return null;
            }
            return new Component()
            {
                Id = model.Id,
                ComponentName = model.ComponentName,
                Cost = model.Cost
            };
        }

        public static Component? Create(XElement element)
        {
            if (element == null)
            {
                return null;
            }
            return new Component()
            {
                Id = Convert.ToInt32(element.Attribute("Id")!.Value),
                ComponentName = element.Element("ComponentName")!.Value,
                Cost = Convert.ToDouble(element.Element("Cost")!.Value)
            };
        }

        public void Update(ComponentBindingModel? model)
        {
            if (model == null)
            {
                return;
            }
            ComponentName = model.ComponentName;
            Cost = model.Cost;
        }
        
        public ComponentViewModel GetViewModel => new()
        {
            Id = Id,
            ComponentName = ComponentName,
            Cost = Cost
        };

        public XElement GetXElement => new("Component",
                        new XAttribute("Id", Id),
                        new XElement("ComponentName", ComponentName),
                        new XElement("Cost", Cost.ToString()));
    }
}