using PlumbingRepairContracts.BindingModels;
using PlumbingRepairContracts.ViewModels;
using PlumbingRepairDataModels.Models;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Xml.Linq;

namespace PlumbingRepairFileImplement.Models
{
    public class Store : IStoreModel
    {
        public string StoreName { get; private set; } = string.Empty;
        public string StoreAdress { get; private set; } = string.Empty;

        public DateTime OpeningDate { get; private set; }
        public Dictionary<int, int> Works { get; private set; } = new();

        public Dictionary<int, (IWorkModel, int)> _storeWorks = null;

        public int Id { get; private set; }

        public int WorkMaxCount { get; private set; }

        public Dictionary<int, (IWorkModel, int)> StoreWorks
        {
            get
            {
                if (_storeWorks == null)
                {
                    var source = DataFileSingleton.GetInstance();
                    _storeWorks = Works.ToDictionary(x => x.Key, y => ((source.Works.FirstOrDefault(z => z.Id == y.Key) as IWorkModel)!, y.Value));
                }
                return _storeWorks;
            }
        }

        public static Store? Create(StoreBindingModel? model)
        {
            if (model == null)
            {
                return null;
            }
            return new Store()
            {
                Id = model.Id,
                StoreName = model.StoreName,
                StoreAdress = model.StoreAdress,
                WorkMaxCount = model.WorkMaxCount,
                OpeningDate = model.OpeningDate,
                Works = model.StoreWorks.ToDictionary(x => x.Key, x => x.Value.Item2)
            };
        }
        public static Store? Create(XElement element)
        {
            if (element == null)
            {
                return null;
            }
            return new()
            {
                Id = Convert.ToInt32(element.Attribute("Id")!.Value),
                StoreName = element.Element("StoreName")!.Value,
                StoreAdress = element.Element("StoreAdress")!.Value,
                OpeningDate = Convert.ToDateTime(element.Element("OpeningDate")!.Value),
                WorkMaxCount = Convert.ToInt32(element.Element("WorkMaxCount")!.Value),
                Works = element.Element("StoreWorks")!.Elements("Work").ToDictionary(
                    x => Convert.ToInt32(x.Element("Key")?.Value),
                    x => Convert.ToInt32(x.Element("Value")?.Value))
            };
        }
        public void Update(StoreBindingModel? model)
        {
            if (model == null)
            {
                return;
            }
            StoreName = model.StoreName;
            StoreAdress = model.StoreAdress;
            OpeningDate = model.OpeningDate;
            WorkMaxCount = model.WorkMaxCount;
            Works = model.StoreWorks.ToDictionary(x => x.Key, x => x.Value.Item2);
            _storeWorks = null;
        }
        public StoreViewModel GetViewModel => new()
        {
            Id = Id,
            StoreName = StoreName,
            StoreAdress = StoreAdress,
            StoreWorks = StoreWorks,
            OpeningDate = OpeningDate,
            WorkMaxCount = WorkMaxCount,
        };
        public XElement GetXElement => new("Store",
             new XAttribute("Id", Id),
             new XElement("StoreName", StoreName),
             new XElement("StoreAdress", StoreAdress),
             new XElement("OpeningDate", OpeningDate),
             new XElement("WorkMaxCount", WorkMaxCount),
             new XElement("StoreWorks", Works
                 .Select(x => new XElement("Work",
                     new XElement("Key", x.Key),
                     new XElement("Value", x.Value))
                 ).ToArray()));
    }
}