Реализация хранения исполнителя для xmlfile

ConfectionaryFileImplement/DataFileSingleton.cs

@@ -10,10 +10,12 @@ namespace ConfectioneryFileImplement
         private readonly string OrderFileName = "Order.xml";
         private readonly string PastryFileName = "Pastry.xml";
         private readonly string ClientFileName = "Client.xml";
+        private readonly string ImplementerFileName = "Implementer.xml";
         public List<Component> Components { get; private set; }
         public List<Order> Orders { get; private set; }
         public List<Pastry> Pastries { get; private set; }
         public List<Client> Clients { get; private set; }
+        public List<Implementer> Implementers { get; private set; }
 
         public static DataFileSingleton GetInstance()
         {
@@ -27,6 +29,7 @@ namespace ConfectioneryFileImplement
         public void SavePastries() => SaveData(Pastries, PastryFileName, "Pastries", x => x.GetXElement);
         public void SaveOrders() => SaveData(Orders, OrderFileName, "Orders", x => x.GetXElement);
         public void SaveClients() => SaveData(Orders, OrderFileName, "Clients", x => x.GetXElement);
+        public void SaveImplementers() => SaveData(Orders, ImplementerFileName, "Implementers", x => x.GetXElement);
 
         private DataFileSingleton()
         {
@@ -34,6 +37,7 @@ namespace ConfectioneryFileImplement
             Pastries = LoadData(PastryFileName, "Pastry", x => Pastry.Create(x)!)!;
             Orders = LoadData(OrderFileName, "Order", x => Order.Create(x)!)!;
             Clients = LoadData(ClientFileName, "Client", x => Client.Create(x)!)!;
+            Implementers = LoadData(ImplementerFileName, "Impleneter", x => Implementer.Create(x)!)!;
         }
         private static List<T>? LoadData<T>(string filename, string xmlNodeName, Func<XElement, T> selectFunction)
         {

ConfectionaryFileImplement/Implementer.cs

@@ -0,0 +1,88 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.ViewModels;
+using ConfectioneryDataModels;
+using System;
+using System.Collections.Generic;
+using System.Data;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Linq;
+
+namespace ConfectioneryFileImplement
+{
+	public class Implementer : IImplementerModel
+	{
+		public int Id { get; private set; }
+
+		public string ImplementerFIO { get; private set; } = string.Empty;
+
+		public string Password { get; private set; } = string.Empty;
+
+		public int WorkExperience { get; private set; }
+
+		public int Qualification { get; private set; }
+
+		public static Implementer? Create(XElement element)
+		{
+			if (element == null)
+			{
+				return null;
+			}
+			return new()
+			{
+				ImplementerFIO = element.Element("FIO")!.Value,
+				Password       = element.Element("Password")!.Value,
+				Id             = Convert.ToInt32(element.Attribute("Id")!.Value),
+				Qualification  = Convert.ToInt32(element.Element("Qualification")!.Value),
+				WorkExperience = Convert.ToInt32(element.Element("WorkExperience")!.Value),
+			};
+		}
+
+		public static Implementer? Create(ImplementerBindingModel model)
+		{
+			if (model == null)
+			{
+				return null;
+			}
+			return new()
+			{ 
+				Id = model.Id,
+				Password = model.Password,
+				Qualification = model.Qualification,
+				ImplementerFIO = model.ImplementerFIO,
+				WorkExperience = model.WorkExperience,
+			};
+		}
+
+
+
+		public void Update(ImplementerBindingModel model)
+		{
+			if (model == null)
+			{
+				return;
+			}
+			Password = model.Password;
+			Qualification = model.Qualification;
+			ImplementerFIO = model.ImplementerFIO;
+			WorkExperience = model.WorkExperience;
+		}
+
+		public ImplementerViewModel GetViewModel => new()
+		{ 
+			Id = Id, 
+			Password = Password, 
+			Qualification = Qualification, 
+			ImplementerFIO = ImplementerFIO, 
+		};
+
+		public XElement GetXElement => new("Client",
+			new XAttribute("Id", Id),
+			new XElement("Password", Password),
+			new XElement("FIO", ImplementerFIO),
+			new XElement("Qualification", Qualification),
+			new XElement("WorkExperience", WorkExperience)
+			);
+	}
+}

ConfectionaryFileImplement/ImplementerStorage.cs

@@ -0,0 +1,90 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.SearchModels;
+using ConfectioneryContracts.StoragesContract;
+using ConfectioneryContracts.ViewModels;
+
+namespace ConfectioneryFileImplement
+{
+	public class ImplementerStorage : IImplementerStorage
+	{
+		private readonly DataFileSingleton _source;
+		public ImplementerStorage()
+		{
+			_source = DataFileSingleton.GetInstance();
+		}
+
+		public ImplementerViewModel? Delete(ImplementerBindingModel model)
+		{
+			var res = _source.Implementers.FirstOrDefault(x => x.Id == model.Id);
+			if (res != null)
+			{
+				_source.Implementers.Remove(res);
+				_source.SaveImplementers();
+			}
+			return res?.GetViewModel;
+		}
+
+		public ImplementerViewModel? GetElement(ImplementerSearchModel model)
+		{
+			if (model.Id.HasValue)
+				return _source.Implementers.FirstOrDefault(x => x.Id == model.Id)?.GetViewModel;
+			if (model.ImplementerFIO != null && model.Password != null)
+				return _source.Implementers
+					.FirstOrDefault(x => x.ImplementerFIO.Equals(model.ImplementerFIO)
+									  && x.Password.Equals(model.Password))
+					?.GetViewModel;
+			if (model.ImplementerFIO != null)
+				return _source.Implementers.FirstOrDefault(x => x.ImplementerFIO.Equals(model.ImplementerFIO))?.GetViewModel;
+			return null;
+		}
+
+		public List<ImplementerViewModel> GetFilteredList(ImplementerSearchModel model)
+		{
+			if (model == null)
+			{
+				return new();
+			}
+			if (model.Id.HasValue)
+			{
+				var res = GetElement(model);
+				return res != null ? new() { res } : new();
+			}
+			if (model.ImplementerFIO != null) // На случай если фио не будет уникальным (по заданию оно уникально)
+			{
+				return _source.Implementers
+					.Where(x => x.ImplementerFIO.Equals(model.ImplementerFIO))
+					.Select(x => x.GetViewModel)
+					.ToList();
+			}
+			return new();
+		}
+
+		public List<ImplementerViewModel> GetFullList()
+		{
+			return _source.Implementers.Select(x => x.GetViewModel).ToList();
+		}
+
+		public ImplementerViewModel? Insert(ImplementerBindingModel model)
+		{
+			model.Id = _source.Implementers.Count > 0 ? _source.Implementers.Max(x => x.Id) + 1 : 1;
+			var res = Implementer.Create(model);
+			if (res != null)
+			{
+				_source.Implementers.Add(res);
+				_source.SaveImplementers();
+			}
+			return res?.GetViewModel;	
+		}
+
+		public ImplementerViewModel? Update(ImplementerBindingModel model)
+		{
+			var res = _source.Implementers.FirstOrDefault(x => x.Id == model.Id);
+			if (res != null)
+			{
+				res.Update(model);
+				_source.SaveImplementers();
+			}
+			return res?.GetViewModel;
+		}
+	}
+}