Седьмая лабораторная работа. Добавление MailInfo + настройка проекта View

Confectionery/Confectionery/App.config

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<configuration>
+	<appSettings>
+		<add key="SmtpClientHost" value="smtp.gmail.com" />
+		<add key="SmtpClientPort" value="587" />
+		<add key="PopHost" value="pop.gmail.com" />
+		<add key="PopPort" value="995" />
+		<add key="MailLogin" value="rpplab7@gmail.com" />
+		<add key="MailPassword" value="rpplab7password" />
+	</appSettings>
+</configuration>

Confectionery/Confectionery/FormMails.Designer.cs

@@ -0,0 +1,67 @@
+namespace Confectionery
+{
+    partial class FormMails
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            this.dataGridView = new System.Windows.Forms.DataGridView();
+            ((System.ComponentModel.ISupportInitialize)(this.dataGridView)).BeginInit();
+            this.SuspendLayout();
+            // 
+            // dataGridView
+            // 
+            this.dataGridView.BackgroundColor = System.Drawing.Color.White;
+            this.dataGridView.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            this.dataGridView.Location = new System.Drawing.Point(2, 1);
+            this.dataGridView.MultiSelect = false;
+            this.dataGridView.Name = "dataGridView";
+            this.dataGridView.RowHeadersVisible = false;
+            this.dataGridView.RowHeadersWidth = 51;
+            this.dataGridView.RowTemplate.Height = 29;
+            this.dataGridView.SelectionMode = System.Windows.Forms.DataGridViewSelectionMode.FullRowSelect;
+            this.dataGridView.Size = new System.Drawing.Size(809, 292);
+            this.dataGridView.TabIndex = 6;
+            // 
+            // FormMails
+            // 
+            this.AutoScaleDimensions = new System.Drawing.SizeF(8F, 20F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.ClientSize = new System.Drawing.Size(812, 298);
+            this.Controls.Add(this.dataGridView);
+            this.Name = "FormMails";
+            this.Text = "Письма";
+            this.Load += new System.EventHandler(this.FormMails_Load);
+            ((System.ComponentModel.ISupportInitialize)(this.dataGridView)).EndInit();
+            this.ResumeLayout(false);
+
+        }
+
+        #endregion
+
+        private DataGridView dataGridView;
+    }
+}

Confectionery/Confectionery/FormMails.cs

@@ -0,0 +1,47 @@
+using ConfectioneryContracts.BusinessLogicsContracts;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace Confectionery
+{
+    public partial class FormMails : Form
+    {
+        private readonly ILogger _logger;
+        private readonly IMessageInfoLogic _logic;
+        public FormMails(ILogger<FormMails> logger, IMessageInfoLogic logic)
+        {
+            InitializeComponent();
+            _logger = logger;
+            _logic = logic;
+        }
+
+        private void FormMails_Load(object sender, EventArgs e)
+        {
+            try
+            {
+                var list = _logic.ReadList(null);
+                if (list != null)
+                {
+                    dataGridView.DataSource = list;
+                    dataGridView.Columns["MessageId"].Visible = false;
+                    dataGridView.Columns["ClientId"].Visible = false;
+                    dataGridView.Columns["Body"].AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
+                }
+                _logger.LogInformation("Загрузка писем");
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Ошибка загрузки писем");
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+    }
+}

Confectionery/Confectionery/FormMails.resx

@@ -0,0 +1,60 @@
+<root>
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

Confectionery/ConfectioneryBusinessLogic/BusinessLogics/MessageInfoLogic.cs

@@ -0,0 +1,79 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.BusinessLogicsContracts;
+using ConfectioneryContracts.SearchModels;
+using ConfectioneryContracts.StoragesContracts;
+using ConfectioneryContracts.ViewModels;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConfectioneryBusinessLogic.BusinessLogics
+{
+    public class MessageInfoLogic : IMessageInfoLogic
+    {
+        private readonly ILogger _logger;
+        private readonly IMessageInfoStorage _messageStorage;
+
+        public MessageInfoLogic(ILogger logger, IMessageInfoStorage logic)
+        {
+            _logger = logger;
+            _messageStorage = logic;
+        }
+
+        public List<MessageInfoViewModel>? ReadList(MessageInfoSearchModel? model)
+        {
+            _logger.LogInformation("ReadList. MessageId:{MessageId}. ClientId:{ClientId}.", model?.MessageId, model?.ClientId);
+            var list = model == null ? _messageStorage.GetFullList() : _messageStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList. Count:{Count}", list.Count);
+            return list;
+        }
+
+        public bool Create(MessageInfoBindingModel model)
+        {
+            CheckModel(model);
+            if (_messageStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        private void CheckModel(MessageInfoBindingModel model, bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (!withParams)
+            {
+                return;
+            }
+            if (string.IsNullOrEmpty(model.MessageId))
+            {
+                throw new ArgumentNullException("Нет id письма", nameof(model.MessageId));
+            }
+            if (string.IsNullOrEmpty(model.SenderName))
+            {
+                throw new ArgumentNullException("Нет отправителя", nameof(model.SenderName));
+            }
+            if (string.IsNullOrEmpty(model.Subject))
+            {
+                throw new ArgumentNullException("Нет темы", nameof(model.Subject));
+            }
+            if (string.IsNullOrEmpty(model.Body))
+            {
+                throw new ArgumentNullException("Нет текста письма", nameof(model.Subject));
+            }
+            _logger.LogInformation("MessageInfo. MessageId:{MessageId}. SenderName:{SenderName}. Subject:{Subject}. Body:{Body}", model.MessageId, model.SenderName, model.Subject, model.Body);
+        }
+    }
+}

Confectionery/ConfectioneryBusinessLogic/ConfectioneryBusinessLogic.csproj

@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
     <TargetFramework>net6.0</TargetFramework>
@@ -8,6 +8,7 @@
 
   <ItemGroup>
     <PackageReference Include="DocumentFormat.OpenXml" Version="2.19.0" />
+    <PackageReference Include="MailKit" Version="4.0.0" />
     <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="7.0.0" />
     <PackageReference Include="PdfSharp.MigraDoc.Standard" Version="1.51.15" />
   </ItemGroup>

Confectionery/ConfectioneryBusinessLogic/MailWorker/AbstractMailWorker.cs

@@ -0,0 +1,97 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.BusinessLogicsContracts;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConfectioneryBusinessLogic.MailWorker
+{
+    public abstract class AbstractMailWorker
+    {
+        protected string _mailLogin = string.Empty;
+
+        protected string _mailPassword = string.Empty;
+
+        protected string _smtpClientHost = string.Empty;
+
+        protected int _smtpClientPort;
+
+        protected string _popHost = string.Empty;
+
+        protected int _popPort;
+
+        private readonly IMessageInfoLogic _messageInfoLogic;
+
+        private readonly ILogger _logger;
+
+        public AbstractMailWorker(ILogger<AbstractMailWorker> logger, IMessageInfoLogic messageInfoLogic)
+        {
+            _logger = logger;
+            _messageInfoLogic = messageInfoLogic;
+        }
+
+        public void MailConfig(MailConfigBindingModel config)
+        {
+            _mailLogin = config.MailLogin;
+            _mailPassword = config.MailPassword;
+            _smtpClientHost = config.SmtpClientHost;
+            _smtpClientPort = config.SmtpClientPort;
+            _popHost = config.PopHost;
+            _popPort = config.PopPort;
+            _logger.LogDebug("Config: {login}, {password}, {clientHost}, {clientPOrt}, {popHost}, {popPort}", _mailLogin, _mailPassword, _smtpClientHost, _smtpClientPort, _popHost, _popPort);
+        }
+
+        public async void MailSendAsync(MailSendInfoBindingModel info)
+        {
+            if (string.IsNullOrEmpty(_mailLogin) || string.IsNullOrEmpty(_mailPassword))
+            {
+                return;
+            }
+
+            if (string.IsNullOrEmpty(_smtpClientHost) || _smtpClientPort == 0)
+            {
+                return;
+            }
+
+            if (string.IsNullOrEmpty(info.MailAddress) || string.IsNullOrEmpty(info.Subject) || string.IsNullOrEmpty(info.Text))
+            {
+                return;
+            }
+
+            _logger.LogDebug("Send Mail: {To}, {Subject}", info.MailAddress, info.Subject);
+            await SendMailAsync(info);
+        }
+
+        public async void MailCheck()
+        {
+            if (string.IsNullOrEmpty(_mailLogin) || string.IsNullOrEmpty(_mailPassword))
+            {
+                return;
+            }
+
+            if (string.IsNullOrEmpty(_popHost) || _popPort == 0)
+            {
+                return;
+            }
+
+            if (_messageInfoLogic == null)
+            {
+                return;
+            }
+
+            var list = await ReceiveMailAsync();
+            _logger.LogDebug("Check Mail: {Count} new mails", list.Count);
+            foreach (var mail in list)
+            {
+                _messageInfoLogic.Create(mail);
+            }
+        }
+
+        protected abstract Task SendMailAsync(MailSendInfoBindingModel info);
+
+        protected abstract Task<List<MessageInfoBindingModel>> ReceiveMailAsync();
+    }
+}

Confectionery/ConfectioneryBusinessLogic/MailWorker/MailKitWorker.cs

@@ -0,0 +1,82 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.BusinessLogicsContracts;
+using MailKit.Net.Pop3;
+using MailKit.Security;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Net.Mail;
+using System.Net;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConfectioneryBusinessLogic.MailWorker
+{
+    public class MailKitWorker : AbstractMailWorker
+    {
+        public MailKitWorker(ILogger<MailKitWorker> logger, IMessageInfoLogic messageInfoLogic) : base(logger, messageInfoLogic) { }
+
+        protected override async Task SendMailAsync(MailSendInfoBindingModel info)
+        {
+            using var objMailMessage = new MailMessage();
+            using var objSmtpClient = new SmtpClient(_smtpClientHost, _smtpClientPort);
+            try
+            {
+                objMailMessage.From = new MailAddress(_mailLogin);
+                objMailMessage.To.Add(new MailAddress(info.MailAddress));
+                objMailMessage.Subject = info.Subject;
+                objMailMessage.Body = info.Text;
+                objMailMessage.SubjectEncoding = Encoding.UTF8;
+                objMailMessage.BodyEncoding = Encoding.UTF8;
+
+                objSmtpClient.UseDefaultCredentials = false;
+                objSmtpClient.EnableSsl = true;
+                objSmtpClient.DeliveryMethod = SmtpDeliveryMethod.Network;
+                objSmtpClient.Credentials = new NetworkCredential(_mailLogin, _mailPassword);
+
+                await Task.Run(() => objSmtpClient.Send(objMailMessage));
+            }
+            catch (Exception)
+            {
+                throw;
+            }
+        }
+
+        protected override async Task<List<MessageInfoBindingModel>> ReceiveMailAsync()
+        {
+            var list = new List<MessageInfoBindingModel>();
+            using var client = new Pop3Client();
+            await Task.Run(() =>
+            {
+                try
+                {
+                    client.Connect(_popHost, _popPort, SecureSocketOptions.SslOnConnect);
+                    client.Authenticate(_mailLogin, _mailPassword);
+                    for (int i = 0; i < client.Count; i++)
+                    {
+                        var message = client.GetMessage(i);
+                        foreach (var mail in message.From.Mailboxes)
+                        {
+                            list.Add(new MessageInfoBindingModel
+                            {
+                                DateDelivery = message.Date.DateTime,
+                                MessageId = message.MessageId,
+                                SenderName = mail.Address,
+                                Subject = message.Subject,
+                                Body = message.TextBody
+                            });
+                        }
+                    }
+                }
+                catch (AuthenticationException)
+                { }
+                finally
+                {
+                    client.Disconnect(true);
+                }
+            });
+            return list;
+        }
+    }
+}

Confectionery/ConfectioneryContracts/BindingModels/MailConfigBindingModel.cs

@@ -0,0 +1,23 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConfectioneryContracts.BindingModels
+{
+    public class MailConfigBindingModel
+    {
+        public string MailLogin { get; set; } = string.Empty;
+
+        public string MailPassword { get; set; } = string.Empty;
+
+        public string SmtpClientHost { get; set; } = string.Empty;
+
+        public int SmtpClientPort { get; set; }
+
+        public string PopHost { get; set; } = string.Empty;
+
+        public int PopPort { get; set; }
+    }
+}

Confectionery/ConfectioneryContracts/BindingModels/MailSendInfoBindingModel.cs

@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConfectioneryContracts.BindingModels
+{
+    public class MailSendInfoBindingModel
+    {
+        public string MailAddress { get; set; } = string.Empty;
+        public string Subject { get; set; } = string.Empty;
+        public string Text { get; set; } = string.Empty;
+    }
+}

Confectionery/ConfectioneryContracts/BindingModels/MessageInfoBindingModel.cs

@@ -0,0 +1,19 @@
+using ConfectioneryDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConfectioneryContracts.BindingModels
+{
+    public class MessageInfoBindingModel : IMessageInfoModel
+    {
+        public string MessageId { get; set; } = string.Empty;
+        public int? ClientId { get; set; }
+        public string SenderName { get; set; } = string.Empty;
+        public DateTime DateDelivery { get; set; }
+        public string Subject { get; set; } = string.Empty;
+        public string Body { get; set; } = string.Empty;
+    }
+}

Confectionery/ConfectioneryContracts/BusinessLogicsContracts/IMessageInfoLogic.cs

@@ -0,0 +1,17 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.SearchModels;
+using ConfectioneryContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConfectioneryContracts.BusinessLogicsContracts
+{
+    public interface IMessageInfoLogic
+    {
+        List<MessageInfoViewModel>? ReadList(MessageInfoSearchModel? model);
+        bool Create(MessageInfoBindingModel model);
+    }
+}

Confectionery/ConfectioneryContracts/SearchModels/MessageInfoSearchModel.cs

@@ -0,0 +1,14 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConfectioneryContracts.SearchModels
+{
+    public class MessageInfoSearchModel
+    {
+        public string? MessageId { get; set; }
+        public int? ClientId { get; set; }
+    }
+}

Confectionery/ConfectioneryContracts/StoragesContracts/IMessageInfoStorage.cs

@@ -0,0 +1,19 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.SearchModels;
+using ConfectioneryContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConfectioneryContracts.StoragesContracts
+{
+    public interface IMessageInfoStorage
+    {
+        List<MessageInfoViewModel> GetFullList();
+        List<MessageInfoViewModel> GetFilteredList(MessageInfoSearchModel model);
+        MessageInfoViewModel? GetElement(MessageInfoSearchModel model);
+        MessageInfoViewModel? Insert(MessageInfoBindingModel model);
+    }
+}

Confectionery/ConfectioneryContracts/ViewModels/MessageInfoViewModel.cs

@@ -0,0 +1,24 @@
+using ConfectioneryDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConfectioneryContracts.ViewModels
+{
+    public class MessageInfoViewModel : IMessageInfoModel
+    {
+        public string MessageId { get; set; } = string.Empty;
+        public int? ClientId { get; set; }
+        [DisplayName("Отправитель")]
+        public string SenderName { get; set; } = string.Empty;
+        [DisplayName("Доставлено")]
+        public DateTime DateDelivery { get; set; }
+        [DisplayName("Заголовок")]
+        public string Subject { get; set; } = string.Empty;
+        [DisplayName("Текст")]
+        public string Body { get; set; } = string.Empty;
+    }
+}

Confectionery/ConfectioneryDataBaseImplement/ConfectioneryDatabase.cs

@@ -25,5 +25,6 @@ namespace ConfectioneryDataBaseImplement
         public virtual DbSet<Order> Orders { set; get; }
         public virtual DbSet<Client> Clients { set; get; }
         public virtual DbSet<Implementer> Implementers { set; get; }
+        public virtual DbSet<MessageInfo> MessageInfos { set; get; }
     }
 }

Confectionery/ConfectioneryDataBaseImplement/Implements/MessageInfoStorage.cs

@@ -0,0 +1,59 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.SearchModels;
+using ConfectioneryContracts.StoragesContracts;
+using ConfectioneryContracts.ViewModels;
+using ConfectioneryDataBaseImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConfectioneryDataBaseImplement.Implements
+{
+    public class MessageInfoStorage : IMessageInfoStorage
+    {
+        public List<MessageInfoViewModel> GetFullList()
+        {
+            using var context = new ConfectioneryDatabase();
+            return context.MessageInfos
+            .Select(x => x.GetViewModel)
+            .ToList();
+        }
+        public List<MessageInfoViewModel> GetFilteredList(MessageInfoSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.MessageId) && !model.ClientId.HasValue)
+            {
+                return new();
+            }
+            using var context = new ConfectioneryDatabase();
+            return context.MessageInfos
+                .Where(x => x.ClientId == model.ClientId)
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+        public MessageInfoViewModel? GetElement(MessageInfoSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.MessageId) && !model.ClientId.HasValue)
+            {
+                return new();
+            }
+            using var context = new ConfectioneryDatabase();
+            return context.MessageInfos
+            .FirstOrDefault(x => x.MessageId.Equals(model.MessageId) && x.ClientId == model.ClientId)
+            ?.GetViewModel;
+        }
+        public MessageInfoViewModel? Insert(MessageInfoBindingModel model)
+        {
+            var newMessageInfo = MessageInfo.Create(model);
+            if (newMessageInfo == null)
+            {
+                return null;
+            }
+            using var context = new ConfectioneryDatabase();
+            context.MessageInfos.Add(newMessageInfo);
+            context.SaveChanges();
+            return newMessageInfo.GetViewModel;
+        }
+    }
+}

Confectionery/ConfectioneryDataBaseImplement/Migrations/20230427212057_AddMessageInfos.Designer.cs

@@ -0,0 +1,278 @@
+// <auto-generated />
+using System;
+using ConfectioneryDataBaseImplement;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Metadata;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+
+#nullable disable
+
+namespace ConfectioneryDataBaseImplement.Migrations
+{
+    [DbContext(typeof(ConfectioneryDatabase))]
+    [Migration("20230427212057_AddMessageInfos")]
+    partial class AddMessageInfos
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "7.0.3")
+                .HasAnnotation("Relational:MaxIdentifierLength", 128);
+
+            SqlServerModelBuilderExtensions.UseIdentityColumns(modelBuilder);
+
+            modelBuilder.Entity("ConfectioneryDataBaseImplement.Models.Client", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("ClientFIO")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("Email")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("Password")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Clients");
+                });
+
+            modelBuilder.Entity("ConfectioneryDataBaseImplement.Models.Implementer", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("ImplementerFIO")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("Password")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<int>("Qualification")
+                        .HasColumnType("int");
+
+                    b.Property<int>("WorkExperience")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Implementers");
+                });
+
+            modelBuilder.Entity("ConfectioneryDataBaseImplement.Models.Ingredient", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<double>("Cost")
+                        .HasColumnType("float");
+
+                    b.Property<string>("IngredientName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Ingredients");
+                });
+
+            modelBuilder.Entity("ConfectioneryDataBaseImplement.Models.MessageInfo", b =>
+                {
+                    b.Property<string>("MessageId")
+                        .HasColumnType("nvarchar(450)");
+
+                    b.Property<string>("Body")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<int?>("ClientId")
+                        .HasColumnType("int");
+
+                    b.Property<DateTime>("DateDelivery")
+                        .HasColumnType("datetime2");
+
+                    b.Property<string>("SenderName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("Subject")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.HasKey("MessageId");
+
+                    b.ToTable("MessageInfos");
+                });
+
+            modelBuilder.Entity("ConfectioneryDataBaseImplement.Models.Order", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("ClientId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.Property<DateTime>("DateCreate")
+                        .HasColumnType("datetime2");
+
+                    b.Property<DateTime?>("DateImplement")
+                        .HasColumnType("datetime2");
+
+                    b.Property<int?>("ImplementerId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("PastryId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("int");
+
+                    b.Property<double>("Sum")
+                        .HasColumnType("float");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ClientId");
+
+                    b.HasIndex("ImplementerId");
+
+                    b.HasIndex("PastryId");
+
+                    b.ToTable("Orders");
+                });
+
+            modelBuilder.Entity("ConfectioneryDataBaseImplement.Models.Pastry", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("PastryName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<double>("Price")
+                        .HasColumnType("float");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Pastrys");
+                });
+
+            modelBuilder.Entity("ConfectioneryDataBaseImplement.Models.PastryIngredient", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.Property<int>("IngredientId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("PastryId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("IngredientId");
+
+                    b.HasIndex("PastryId");
+
+                    b.ToTable("PastryIngredients");
+                });
+
+            modelBuilder.Entity("ConfectioneryDataBaseImplement.Models.Order", b =>
+                {
+                    b.HasOne("ConfectioneryDataBaseImplement.Models.Client", "Client")
+                        .WithMany()
+                        .HasForeignKey("ClientId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("ConfectioneryDataBaseImplement.Models.Implementer", "Implementer")
+                        .WithMany("Orders")
+                        .HasForeignKey("ImplementerId");
+
+                    b.HasOne("ConfectioneryDataBaseImplement.Models.Pastry", null)
+                        .WithMany("Orders")
+                        .HasForeignKey("PastryId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Client");
+
+                    b.Navigation("Implementer");
+                });
+
+            modelBuilder.Entity("ConfectioneryDataBaseImplement.Models.PastryIngredient", b =>
+                {
+                    b.HasOne("ConfectioneryDataBaseImplement.Models.Ingredient", "Ingredient")
+                        .WithMany("PastryIgredients")
+                        .HasForeignKey("IngredientId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("ConfectioneryDataBaseImplement.Models.Pastry", "Pastry")
+                        .WithMany("Ingredients")
+                        .HasForeignKey("PastryId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Ingredient");
+
+                    b.Navigation("Pastry");
+                });
+
+            modelBuilder.Entity("ConfectioneryDataBaseImplement.Models.Implementer", b =>
+                {
+                    b.Navigation("Orders");
+                });
+
+            modelBuilder.Entity("ConfectioneryDataBaseImplement.Models.Ingredient", b =>
+                {
+                    b.Navigation("PastryIgredients");
+                });
+
+            modelBuilder.Entity("ConfectioneryDataBaseImplement.Models.Pastry", b =>
+                {
+                    b.Navigation("Ingredients");
+
+                    b.Navigation("Orders");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

Confectionery/ConfectioneryDataBaseImplement/Migrations/20230427212057_AddMessageInfos.cs

@@ -0,0 +1,38 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace ConfectioneryDataBaseImplement.Migrations
+{
+    /// <inheritdoc />
+    public partial class AddMessageInfos : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "MessageInfos",
+                columns: table => new
+                {
+                    MessageId = table.Column<string>(type: "nvarchar(450)", nullable: false),
+                    ClientId = table.Column<int>(type: "int", nullable: true),
+                    SenderName = table.Column<string>(type: "nvarchar(max)", nullable: false),
+                    DateDelivery = table.Column<DateTime>(type: "datetime2", nullable: false),
+                    Subject = table.Column<string>(type: "nvarchar(max)", nullable: false),
+                    Body = table.Column<string>(type: "nvarchar(max)", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_MessageInfos", x => x.MessageId);
+                });
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "MessageInfos");
+        }
+    }
+}

Confectionery/ConfectioneryDataBaseImplement/Migrations/ConfectioneryDatabaseModelSnapshot.cs

@@ -94,6 +94,34 @@ namespace ConfectioneryDataBaseImplement.Migrations
                     b.ToTable("Ingredients");
                 });
 
+            modelBuilder.Entity("ConfectioneryDataBaseImplement.Models.MessageInfo", b =>
+                {
+                    b.Property<string>("MessageId")
+                        .HasColumnType("nvarchar(450)");
+
+                    b.Property<string>("Body")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<int?>("ClientId")
+                        .HasColumnType("int");
+
+                    b.Property<DateTime>("DateDelivery")
+                        .HasColumnType("datetime2");
+
+                    b.Property<string>("SenderName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("Subject")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.HasKey("MessageId");
+
+                    b.ToTable("MessageInfos");
+                });
+
             modelBuilder.Entity("ConfectioneryDataBaseImplement.Models.Order", b =>
                 {
                     b.Property<int>("Id")

Confectionery/ConfectioneryDataBaseImplement/Models/MessageInfo.cs

@@ -0,0 +1,56 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.ViewModels;
+using ConfectioneryDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConfectioneryDataBaseImplement.Models
+{
+    public class MessageInfo : IMessageInfoModel
+    {
+        [Key]
+        [DatabaseGenerated(DatabaseGeneratedOption.None)]
+        public string MessageId { get; set; } = string.Empty;
+        public int? ClientId { get; set; }
+        [Required]
+        public string SenderName { get; set; } = string.Empty;
+        [Required]
+        public DateTime DateDelivery { get; set; }
+        [Required]
+        public string Subject { get; set; } = string.Empty;
+        [Required]
+        public string Body { get; set; } = string.Empty;
+
+        public static MessageInfo? Create(MessageInfoBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new MessageInfo()
+            {
+                MessageId = model.MessageId,
+                ClientId = model.ClientId,
+                SenderName = model.SenderName,
+                Body = model.Body,
+                Subject = model.Subject,
+                DateDelivery = model.DateDelivery
+            };
+        }
+
+        public MessageInfoViewModel GetViewModel => new()
+        {
+            MessageId = MessageId,
+            ClientId = ClientId,
+            SenderName = SenderName,
+            Body = Body,
+            Subject = Subject,
+            DateDelivery = DateDelivery
+        };
+    }
+}

Confectionery/ConfectioneryDataModels/Models/IMessageInfoModel.cs

@@ -0,0 +1,18 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConfectioneryDataModels.Models
+{
+    public interface IMessageInfoModel
+    {
+        string MessageId { get; }
+        int? ClientId { get; }
+        string SenderName { get; }
+        DateTime DateDelivery { get; }
+        string Subject { get; }
+        string Body { get; }
+    }
+}

Confectionery/ConfectioneryFileImplements/DataFileSingleton.cs

@@ -17,11 +17,13 @@ namespace ConfectioneryFileImplement
         private readonly string PastryFileName = "Pastry.xml";
         private readonly string ClientFileName = "Client.xml";
         private readonly string ImplementerFileName = "Client.xml";
+        private readonly string MessageInfoFileName = "MessageInfo.xml";
         public List<Ingredient> Ingredients { 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 List<MessageInfo> MessageInfos { get; private set; }
         public static DataFileSingleton GetInstance()
         {
             if (instance == null)
@@ -35,6 +37,7 @@ namespace ConfectioneryFileImplement
         public void SaveOrders() => SaveData(Orders, OrderFileName, "Orders", x => x.GetXElement);
         public void SaveClients() => SaveData(Clients, ClientFileName, "Clients", x => x.GetXElement);
         public void SaveImplementers() => SaveData(Implementers, ImplementerFileName, "Implementers", x => x.GetXElement);
+        public void SaveMessageInfos() => SaveData(MessageInfos, MessageInfoFileName, "MessageInfos", x => x.GetXElement);
         private DataFileSingleton()
         {
             Ingredients = LoadData(IngredientFileName, "Ingredient", x => Ingredient.Create(x)!)!;
@@ -42,6 +45,7 @@ namespace ConfectioneryFileImplement
             Orders = LoadData(OrderFileName, "Order", x => Order.Create(x)!)!;
             Clients = LoadData(ClientFileName, "Client", x => Client.Create(x)!)!;
             Implementers = LoadData(ImplementerFileName, "Implementer", x => Implementer.Create(x)!)!;
+            MessageInfos = LoadData(MessageInfoFileName, "MessageInfo", x => MessageInfo.Create(x)!)!;
         }
         private static List<T>? LoadData<T>(string filename, string xmlNodeName, Func<XElement, T> selectFunction)
         {

Confectionery/ConfectioneryFileImplements/Implements/MessageInfoStorage.cs

@@ -0,0 +1,61 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.SearchModels;
+using ConfectioneryContracts.StoragesContracts;
+using ConfectioneryContracts.ViewModels;
+using ConfectioneryFileImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConfectioneryFileImplement.Implements
+{
+    public class MessageInfoStorage : IMessageInfoStorage
+    {
+        private readonly DataFileSingleton source;
+        public MessageInfoStorage()
+        {
+            source = DataFileSingleton.GetInstance();
+        }
+        public List<MessageInfoViewModel> GetFullList()
+        {
+            return source.MessageInfos
+            .Select(x => x.GetViewModel)
+            .ToList();
+        }
+        public List<MessageInfoViewModel> GetFilteredList(MessageInfoSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.MessageId) && !model.ClientId.HasValue)
+            {
+                return new();
+            }
+            return source.MessageInfos
+                .Where(x => x.ClientId == model.ClientId)
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+        public MessageInfoViewModel? GetElement(MessageInfoSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.MessageId) && !model.ClientId.HasValue)
+            {
+                return new();
+            }
+            return source.MessageInfos
+            .FirstOrDefault(x => x.MessageId.Equals(model.MessageId) && x.ClientId == model.ClientId)
+            ?.GetViewModel;
+        }
+
+        public MessageInfoViewModel? Insert(MessageInfoBindingModel model)
+        {
+            var newMessageInfo = MessageInfo.Create(model);
+            if (newMessageInfo == null)
+            {
+                return null;
+            }
+            source.MessageInfos.Add(newMessageInfo);
+            source.SaveMessageInfos();
+            return newMessageInfo.GetViewModel;
+        }
+    }
+}

Confectionery/ConfectioneryFileImplements/Models/MessageInfo.cs

@@ -0,0 +1,74 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.ViewModels;
+using ConfectioneryDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Linq;
+
+namespace ConfectioneryFileImplement.Models
+{
+    public class MessageInfo : IMessageInfoModel
+    {
+        public string MessageId { get; set; } = string.Empty;
+        public int? ClientId { get; set; }
+        public string SenderName { get; set; } = string.Empty;
+        public DateTime DateDelivery { get; set; }
+        public string Subject { get; set; } = string.Empty;
+        public string Body { get; set; } = string.Empty;
+
+        public static MessageInfo? Create(MessageInfoBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new MessageInfo()
+            {
+                MessageId = model.MessageId,
+                ClientId = model.ClientId,
+                SenderName = model.SenderName,
+                Body = model.Body,
+                Subject = model.Subject,
+                DateDelivery = model.DateDelivery
+            };
+        }
+
+        public static MessageInfo? Create(XElement element)
+        {
+            if (element == null)
+            {
+                return null;
+            }
+            return new MessageInfo()
+            {
+                MessageId = element.Attribute("MessageId")!.Value,
+                ClientId = Convert.ToInt32(element.Element("ClientId")!.Value),
+                SenderName = element.Element("SenderName")!.Value,
+                Body = element.Element("Body")!.Value,
+                Subject = element.Element("Subject")!.Value,
+                DateDelivery = Convert.ToDateTime(element.Element("DateDelivery")!.Value)
+            };
+        }
+
+        public MessageInfoViewModel GetViewModel => new()
+        {
+            MessageId = MessageId,
+            ClientId = ClientId,
+            SenderName = SenderName,
+            Body = Body,
+            Subject = Subject,
+            DateDelivery = DateDelivery
+        };
+
+        public XElement GetXElement => new("MessageInfo",
+        new XAttribute("MessageId", MessageId),
+        new XElement("ClientId", ClientId.ToString()),
+        new XElement("SenderName", SenderName),
+        new XElement("Subject", Subject),
+        new XElement("Body", Body),
+        new XElement("DateDelivery", DateDelivery.ToString()));
+    }
+}

Confectionery/ConfectioneryListImplement/DataListSingleton.cs

@@ -16,6 +16,7 @@ namespace ConfectioneryListImplement
         public List<Pastry> Pastries { get; set; }
         public List<Client> Clients { get; set; }
         public List<Implementer> Implementers { get; set; }
+        public List<MessageInfo> MessageInfos { get; set; }
         private DataListSingleton()
         {
             Ingredients = new List<Ingredient>();
@@ -23,6 +24,7 @@ namespace ConfectioneryListImplement
             Pastries = new List<Pastry>();
             Clients = new List<Client>();
             Implementers = new List<Implementer>();
+            MessageInfos = new List<MessageInfo>();
         }
         public static DataListSingleton GetInstance()
         {

Confectionery/ConfectioneryListImplement/Implements/MessageInfoStorage.cs

@@ -0,0 +1,77 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.SearchModels;
+using ConfectioneryContracts.StoragesContracts;
+using ConfectioneryContracts.ViewModels;
+using ConfectioneryListImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConfectioneryListImplement.Implements
+{
+    public class MessageInfoStorage : IMessageInfoStorage
+    {
+        private readonly DataListSingleton _source;
+
+        public MessageInfoStorage(DataListSingleton source)
+        {
+            _source = source;
+        }
+
+        public List<MessageInfoViewModel> GetFullList()
+        {
+            var result = new List<MessageInfoViewModel>();
+            foreach (var messageInfo in _source.MessageInfos)
+            {
+                result.Add(messageInfo.GetViewModel);
+            }
+            return result;
+        }
+
+        public List<MessageInfoViewModel> GetFilteredList(MessageInfoSearchModel model)
+        {
+            var result = new List<MessageInfoViewModel>();
+            if (string.IsNullOrEmpty(model.MessageId) && !model.ClientId.HasValue)
+            {
+                return result;
+            }
+            foreach (var messageInfo in _source.MessageInfos)
+            {
+                if (messageInfo.ClientId == model.ClientId)
+                {
+                    result.Add(messageInfo.GetViewModel);
+                }
+            }
+            return result;
+        }
+
+        public MessageInfoViewModel? GetElement(MessageInfoSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.MessageId) && !model.ClientId.HasValue)
+            {
+                return null;
+            }
+            foreach (var messageInfo in _source.MessageInfos)
+            {
+                if (!string.IsNullOrEmpty(model.MessageId) && model.ClientId.HasValue && messageInfo.MessageId == model.MessageId && messageInfo.ClientId == model.ClientId)
+                {
+                    return messageInfo.GetViewModel;
+                }
+            }
+            return null;
+        }
+
+        public MessageInfoViewModel? Insert(MessageInfoBindingModel model)
+        {
+            var newMessageInfo = MessageInfo.Create(model);
+            if (newMessageInfo == null)
+            {
+                return null;
+            }
+            _source.MessageInfos.Add(newMessageInfo);
+            return newMessageInfo.GetViewModel;
+        }
+    }
+}

Confectionery/ConfectioneryListImplement/Models/MessageInfo.cs

@@ -0,0 +1,48 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.ViewModels;
+using ConfectioneryDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConfectioneryListImplement.Models
+{
+    public class MessageInfo : IMessageInfoModel
+    {
+        public string MessageId { get; set; } = string.Empty;
+        public int? ClientId { get; set; }
+        public string SenderName { get; set; } = string.Empty;
+        public DateTime DateDelivery { get; set; }
+        public string Subject { get; set; } = string.Empty;
+        public string Body { get; set; } = string.Empty;
+
+        public static MessageInfo? Create(MessageInfoBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new MessageInfo()
+            {
+                MessageId = model.MessageId,
+                ClientId = model.ClientId,
+                SenderName = model.SenderName,
+                Body = model.Body,
+                Subject = model.Subject,
+                DateDelivery = model.DateDelivery
+            };
+        }
+
+        public MessageInfoViewModel GetViewModel => new()
+        {
+            MessageId = MessageId,
+            ClientId = ClientId,
+            SenderName = SenderName,
+            Body = Body,
+            Subject = Subject,
+            DateDelivery = DateDelivery
+        };
+    }
+}