using SecuritySystemContracts.BindingModels;
using SecuritySystemContracts.ViewModels;
using SecuritySystemDataModels.Models;
using SecuritySystemFileImplement;
using System.Xml.Linq;

namespace AutomobilePlantFileImplement.Models
{
    public class Shop : IShopModel
    {
        public int Id { get; private set; }
        public string Name { get; private set; } = string.Empty;
        public string Address { get; private set; } = string.Empty;
        public int MaxSecuresCount { get; private set; }
        public DateTime OpeningDate { get; private set; }
        public Dictionary<int, int> Secures { get; private set; } = new();
        private Dictionary<int, (ISecureModel, int)>? _shopSecures = null;
        public Dictionary<int, (ISecureModel, int)> ShopSecures
        {
            get
            {
                if (_shopSecures == null)
                {
                    var source = DataFileSingleton.GetInstance();
                    _shopSecures = Secures.ToDictionary(
                        x => x.Key,
                        y => ((source.Secures.FirstOrDefault(z => z.Id == y.Key) as ISecureModel)!, y.Value)
                    );
                }
                return _shopSecures;
            }
        }

        public static Shop? Create(ShopBindingModel? model)
        {
            if (model == null)
            {
                return null;
            }
            return new Shop()
            {
                Id = model.Id,
                Name = model.Name,
                Address = model.Address,
                MaxSecuresCount = model.MaxSecuresCount,
                OpeningDate = model.OpeningDate,
                Secures = model.ShopSecures.ToDictionary(x => x.Key, x => x.Value.Item2)
            };
        }

        public static Shop? Create(XElement element)
        {
            if (element == null)
            {
                return null;
            }
            return new Shop()
            {
                Id = Convert.ToInt32(element.Attribute("Id")!.Value),
                Name = element.Element("Name")!.Value,
                Address = element.Element("Address")!.Value,
                MaxSecuresCount = Convert.ToInt32(element.Element("MaxSecuresCount")!.Value),
                OpeningDate = Convert.ToDateTime(element.Element("OpeningDate")!.Value),
                Secures = element.Element("ShopSecures")!.Elements("ShopSecure").ToDictionary(
                    x => Convert.ToInt32(x.Element("Key")?.Value),
                    x => Convert.ToInt32(x.Element("Value")?.Value)
                )
            };
        }


        public void Update(ShopBindingModel? model)
        {
            if (model == null)
            {
                return;
            }
            Name = model.Name;
            Address = model.Address;
            MaxSecuresCount = model.MaxSecuresCount;
            OpeningDate = model.OpeningDate;
            if (model.ShopSecures.Count > 0)
            {
                Secures = model.ShopSecures.ToDictionary(x => x.Key, x => x.Value.Item2);
                _shopSecures = null;
            }
        }
        public ShopViewModel GetViewModel => new()
        {
            Id = Id,
            Name = Name,
            Address = Address,
            MaxSecuresCount = MaxSecuresCount,
            OpeningDate = OpeningDate,
            ShopSecures = ShopSecures,
        };

        public XElement GetXElement => new(
            "Shop",
             new XAttribute("Id", Id),
             new XElement("Name", Name),
             new XElement("Address", Address),
             new XElement("MaxSecuresCount", MaxSecuresCount),
             new XElement("OpeningDate", OpeningDate.ToString()),
             new XElement("ShopSecures", Secures.Select(x =>
             new XElement("ShopSecure",
             new XElement("Key", x.Key),
             new XElement("Value", x.Value)))
            .ToArray()));
    }
}