refactoring

Pizzeria/PizzeriaListImplement/DataListSingleton.cs

@@ -9,11 +9,13 @@ namespace PizzeriaListImplement
         public List<Component> Components { get; set; }
         public List<Order> Orders { get; set; }
         public List<Pizza> Pizzas { get; set; }
+        public List<MessageInfo> Messages { get; set; }
         private DataListSingleton()
         {
             Components = new List<Component>();
             Orders = new List<Order>();
             Pizzas = new List<Pizza>();
+            Messages = new List<MessageInfo>();
         }
         public static DataListSingleton GetInstance()
         {

Pizzeria/PizzeriaListImplement/Implements/MessageInfoStorage.cs

@@ -0,0 +1,72 @@
+using PizzeriaContracts.BindingModels;
+using PizzeriaContracts.SearchModels;
+using PizzeriaContracts.StoragesContracts;
+using PizzeriaContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PizzeriaListImplement.Implements
+{
+    public class MessageInfoStorage : IMessageInfoStorage
+    {
+        private readonly DataListSingleton _source;
+
+        public MessageInfoStorage()
+        {
+            _source = DataListSingleton.GetInstance();
+        }
+
+        public MessageInfoViewModel? GetElement(MessageInfoSearchModel model)
+        {
+            foreach (var message in _source.Messages)
+            {
+                if (model.MessageId != null && model.MessageId.Equals(message.MessageId)) return message.GetViewModel;
+            }
+
+            return null;
+        }
+
+        public List<MessageInfoViewModel> GetFilteredList(MessageInfoSearchModel model)
+        {
+            List<MessageInfoViewModel> result = new();
+
+            foreach (var item in _source.Messages)
+            {
+                if (item.ClientId.HasValue && item.ClientId == model.ClientId)
+                {
+                    result.Add(item.GetViewModel);
+                }
+            }
+
+            return result;
+        }
+
+        public List<MessageInfoViewModel> GetFullList()
+        {
+            List<MessageInfoViewModel> result = new();
+
+            foreach (var item in _source.Messages)
+            {
+                result.Add(item.GetViewModel);
+            }
+
+            return result;
+        }
+
+        public MessageInfoViewModel? Insert(MessageInfoBindingModel model)
+        {
+            var newMessage = MessageInfo.Create(model);
+            if (newMessage == null)
+            {
+                return null;
+            }
+
+            _source.Messages.Add(newMessage);
+
+            return newMessage.GetViewModel;
+        }
+    }
+}

Pizzeria/PizzeriaListImplement/Models/MessageInfo.cs

@@ -0,0 +1,49 @@
+using PizzeriaContracts.BindingModels;
+using PizzeriaContracts.ViewModels;
+using PizzeriaDataModels.Models;
+
+namespace PizzeriaListImplement.Models
+{
+    public class MessageInfo : IMessageInfoModel
+    {
+        public string MessageId { get; private set; } = string.Empty;
+
+        public int? ClientId { get; private set; }
+
+        public string SenderName { get; private set; } = string.Empty;
+
+        public DateTime DateDelivery { get; private set; } = DateTime.Now;
+
+        public string Subject { get; private set; } = string.Empty;
+
+        public string Body { get; private set; } = string.Empty;
+
+        public static MessageInfo? Create(MessageInfoBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+
+            return new()
+            {
+                Body = model.Body,
+                Subject = model.Subject,
+                ClientId = model.ClientId,
+                MessageId = model.MessageId,
+                SenderName = model.SenderName,
+                DateDelivery = model.DateDelivery,
+            };
+        }
+
+        public MessageInfoViewModel GetViewModel => new()
+        {
+            Body = Body,
+            Subject = Subject,
+            ClientId = ClientId,
+            MessageId = MessageId,
+            SenderName = SenderName,
+            DateDelivery = DateDelivery,
+        };
+    }
+}

Pizzeria/PizzeriaShopFileImplement/DataFileSingleton.cs

@@ -9,9 +9,11 @@ namespace PizzeriaFileImplement
         private readonly string ComponentFileName = "Component.xml";
         private readonly string OrderFileName = "Order.xml";
         private readonly string PizzaFileName = "Pizza.xml";
+        private readonly string MessageFileName = "Message.xml";
         public List<Component> Components { get; private set; }
         public List<Order> Orders { get; private set; }
         public List<Pizza> Pizzas { get; private set; }
+        public List<MessageInfo> Messages { get; private set; }
         public static DataFileSingleton GetInstance()
         {
             if (instance == null)
@@ -23,6 +25,7 @@ namespace PizzeriaFileImplement
         public void SaveComponents() => SaveData(Components, ComponentFileName, "Components", x => x.GetXElement);
         public void SavePizzas() => SaveData(Pizzas, PizzaFileName, "Pizzas", x => x.GetXElement);
         public void SaveOrders() => SaveData(Orders, OrderFileName, "Orders", x => x.GetXElement);
+        public void SaveMessages() => SaveData(Messages, MessageFileName, "Messages", x => x.GetXElement);
         private DataFileSingleton()
         {
             Components = LoadData(ComponentFileName, "Component", x =>
@@ -30,6 +33,7 @@ namespace PizzeriaFileImplement
             Pizzas = LoadData(PizzaFileName, "Pizza", x =>
            Pizza.Create(x)!)!;
             Orders = LoadData(OrderFileName, "Order", x => Order.Create(x)!)!;
+            Messages = LoadData(MessageFileName, "Message", x => MessageInfo.Create(x)!)!;
         }
         private static List<T>? LoadData<T>(string filename, string xmlNodeName, Func<XElement, T> selectFunction)
         {

Pizzeria/PizzeriaShopFileImplement/Implements/MessageInfoStorage.cs

@@ -0,0 +1,51 @@
+using PizzeriaContracts.BindingModels;
+using PizzeriaContracts.SearchModels;
+using PizzeriaContracts.StoragesContracts;
+using PizzeriaContracts.ViewModels;
+
+namespace PizzeriaFileImplement.Implements
+{
+    public class MessageInfoStorage : IMessageInfoStorage
+    {
+        private readonly DataFileSingleton _source;
+
+        public MessageInfoStorage()
+        {
+            _source = DataFileSingleton.GetInstance();
+        }
+
+        public MessageInfoViewModel? GetElement(MessageInfoSearchModel model)
+        {
+            if (model.MessageId != null)
+            {
+                return _source.Messages.FirstOrDefault(x => x.MessageId == model.MessageId)?.GetViewModel;
+            }
+
+            return null;
+        }
+
+        public List<MessageInfoViewModel> GetFilteredList(MessageInfoSearchModel model)
+        {
+            return _source.Messages.Where(x => x.ClientId == model.ClientId).Select(x => x.GetViewModel).ToList();
+        }
+
+        public List<MessageInfoViewModel> GetFullList()
+        {
+            return _source.Messages.Select(x => x.GetViewModel).ToList();
+        }
+
+        public MessageInfoViewModel? Insert(MessageInfoBindingModel model)
+        {
+            var newMessage = MessageInfo.Create(model);
+            if (newMessage == null)
+            {
+                return null;
+            }
+
+            _source.Messages.Add(newMessage);
+            _source.SaveMessages();
+
+            return newMessage.GetViewModel;
+        }
+    }
+}

Pizzeria/PizzeriaShopFileImplement/models/MessageInfo.cs

@@ -0,0 +1,77 @@
+using PizzeriaContracts.BindingModels;
+using PizzeriaContracts.ViewModels;
+using PizzeriaDataModels.Models;
+using System.Xml.Linq;
+
+namespace PizzeriaFileImplement.models
+{
+    public class MessageInfo : IMessageInfoModel
+    {
+        public string MessageId { get; private set; } = string.Empty;
+
+        public int? ClientId { get; private set; }
+
+        public string SenderName { get; private set; } = string.Empty;
+
+        public DateTime DateDelivery { get; private set; } = DateTime.Now;
+
+        public string Subject { get; private set; } = string.Empty;
+
+        public string Body { get; private set; } = string.Empty;
+
+        public static MessageInfo? Create(MessageInfoBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+
+            return new()
+            {
+                Body = model.Body,
+                Subject = model.Subject,
+                ClientId = model.ClientId,
+                MessageId = model.MessageId,
+                SenderName = model.SenderName,
+                DateDelivery = model.DateDelivery,
+            };
+        }
+
+        public static MessageInfo? Create(XElement element)
+        {
+            if (element == null)
+            {
+                return null;
+            }
+
+            return new()
+            {
+                Body = element.Attribute("Body")!.Value,
+                Subject = element.Attribute("Subject")!.Value,
+                ClientId = Convert.ToInt32(element.Attribute("ClientId")!.Value),
+                MessageId = element.Attribute("MessageId")!.Value,
+                SenderName = element.Attribute("SenderName")!.Value,
+                DateDelivery = Convert.ToDateTime(element.Attribute("DateDelivery")!.Value),
+            };
+        }
+
+        public MessageInfoViewModel GetViewModel => new()
+        {
+            Body = Body,
+            Subject = Subject,
+            ClientId = ClientId,
+            MessageId = MessageId,
+            SenderName = SenderName,
+            DateDelivery = DateDelivery,
+        };
+
+        public XElement GetXElement => new("MessageInfo",
+            new XAttribute("Body", Body),
+            new XAttribute("Subject", Subject),
+            new XAttribute("ClientId", ClientId),
+            new XAttribute("MessageId", MessageId),
+            new XAttribute("SenderName", SenderName),
+            new XAttribute("DateDelivery", DateDelivery)
+        );
+    }
+}