это работает......

SoftwareInstallation/SoftwareInstallationBusinessLogic/BusinessLogics/ClientLogic.cs

@@ -1,5 +1,6 @@
 using Microsoft.Extensions.Logging;
 using SoftwareInstallationContracts.BindingModels;
+using SoftwareInstallationContracts.BusinessLogicContracts;
 using SoftwareInstallationContracts.BusinessLogicsContracts;
 using SoftwareInstallationContracts.SearchModels;
 using SoftwareInstallationContracts.StoragesContracts;
@@ -8,6 +9,7 @@ using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
+using System.Text.RegularExpressions;
 using System.Threading.Tasks;
 
 namespace SoftwareInstallationBusinessLogic.BusinessLogics
@@ -108,6 +110,15 @@ namespace SoftwareInstallationBusinessLogic.BusinessLogics
                 throw new ArgumentNullException("Нет пароля клиента",
                nameof(model.ClientFIO));
             }
+            if (!Regex.IsMatch(model.Email, @"^[^@\s]+@[^@\s]+\.[^@\s]+$", RegexOptions.IgnoreCase))
+            {
+                throw new ArgumentException("Неправильно введенный email", nameof(model.Email));
+            }
+
+            if (!Regex.IsMatch(model.Password, @"^^((\w+\d+\W+)|(\w+\W+\d+)|(\d+\w+\W+)|(\d+\W+\w+)|(\W+\w+\d+)|(\W+\d+\w+))[\w\d\W]*$", RegexOptions.IgnoreCase))
+            {
+                throw new ArgumentException("Неправильно введенный пароль", nameof(model.Password));
+            }
             _logger.LogInformation("Client. ClientFIO:{ClientFIO}." +
                 "Email:{ Email}. Password:{ Password}. Id: { Id} ", model.ClientFIO, model.Email, model.Password, model.Id);
             var element = _clientStorage.GetElement(new ClientSearchModel

SoftwareInstallation/SoftwareInstallationBusinessLogic/BusinessLogics/MessageInfoLogic.cs

@@ -0,0 +1,101 @@
+using Microsoft.Extensions.Logging;
+using SoftwareInstallationContracts.BindingModels;
+using SoftwareInstallationContracts.BusinessLogicContracts;
+using SoftwareInstallationContracts.SearchModels;
+using SoftwareInstallationContracts.StoragesContracts;
+using SoftwareInstallationContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SoftwareInstallationBusinessLogic.BusinessLogics
+{
+    public class MessageInfoLogic : IMessageInfoLogic
+    {
+        private readonly ILogger _logger;
+        private readonly IMessageInfoStorage _messageStorage;
+		private readonly IClientStorage _clientStorage;
+
+		public MessageInfoLogic(ILogger<MessageInfoLogic> logger, IMessageInfoStorage messageStorage, IClientStorage clientStorage)
+        {
+            _logger = logger;
+            _messageStorage = messageStorage;
+			_clientStorage = clientStorage;
+
+		}
+
+        public bool Create(MessageInfoBindingModel model)
+        {
+			CheckModel(model);
+			if (_messageStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert operation failed");
+
+                return false;
+            }
+
+            return true;
+        }
+
+        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;
+        }
+		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("Не указан id сообщения", nameof(model.MessageId));
+			}
+			if (string.IsNullOrEmpty(model.SenderName))
+			{
+				throw new ArgumentNullException("Не указао почта", nameof(model.SenderName));
+			}
+			if (string.IsNullOrEmpty(model.Subject))
+			{
+				throw new ArgumentNullException("Не указана тема", nameof(model.Subject));
+			}
+			if (string.IsNullOrEmpty(model.Body))
+			{
+				throw new ArgumentNullException("Не указан текст сообщения", nameof(model.Subject));
+			}
+
+			_logger.LogInformation("MessageInfo. MessageId:{MessageId}.SenderName:{SenderName}.Subject:{Subject}.Body:{Body}", model.MessageId, model.SenderName, model.Subject, model.Body);
+			var element = _clientStorage.GetElement(new ClientSearchModel
+			{
+				Email = model.SenderName
+			});
+			if (element == null)
+			{
+				_logger.LogWarning("Не удалоссь найти клиента, отправившего письмо с адреса Email:{Email}", model.SenderName);
+			}
+			else
+			{
+				model.ClientId = element.Id;
+			}
+		}
+
+	}
+}

SoftwareInstallation/SoftwareInstallationBusinessLogic/BusinessLogics/OrderLogic.cs

@@ -1,5 +1,8 @@
-using Microsoft.Extensions.Logging;
+using DocumentFormat.OpenXml.EMMA;
+using Microsoft.Extensions.Logging;
+using SoftwareInstallationBusinessLogic.MailWorker;
 using SoftwareInstallationContracts.BindingModels;
+using SoftwareInstallationContracts.BusinessLogicContracts;
 using SoftwareInstallationContracts.BusinessLogicsContracts;
 using SoftwareInstallationContracts.SearchModels;
 using SoftwareInstallationContracts.StoragesContracts;
@@ -17,12 +20,16 @@ namespace SoftwareInstallationBusinessLogic.BusinessLogics
     {
         private readonly ILogger _logger;
         private readonly IOrderStorage _orderStorage;
+        private readonly AbstractMailWorker _mailWorker;
+        private readonly IClientLogic _clientLogic;
         static readonly object locker = new object();
 
-        public OrderLogic(ILogger<OrderLogic> logger, IOrderStorage orderStorage)
+        public OrderLogic(ILogger<OrderLogic> logger, IOrderStorage orderStorage, AbstractMailWorker mailWorker, IClientLogic clientLogic)
         {
             _logger = logger;
             _orderStorage = orderStorage;
+            _mailWorker = mailWorker;
+            _clientLogic = clientLogic;
         }
 
         public bool CreateOrder(OrderBindingModel model)
@@ -36,14 +43,17 @@ namespace SoftwareInstallationBusinessLogic.BusinessLogics
             }
 
             model.Status = OrderStatus.Принят;
+            var result = _orderStorage.Insert(model);
 
-            if (_orderStorage.Insert(model) == null)
+            if (result == null)
             {
                 model.Status = OrderStatus.Неизвестен;
                 _logger.LogWarning("Insert operation failed");
                 return false;
             }
 
+            SendOrderMessage(result.ClientId, $"Установка ПО, Заказ №{result.Id}", $"Заказ №{result.Id} от {result.DateCreate} на сумму {result.Sum:0.00} принят");
+
             return true;
         }
 
@@ -63,7 +73,7 @@ namespace SoftwareInstallationBusinessLogic.BusinessLogics
 
             model.Status = newStatus;
 
-            if (model.Status == OrderStatus.Готов)
+            if (model.Status == OrderStatus.Выдан)
                 model.DateImplement = DateTime.Now;
 
             if (viewModel.ImplementerId.HasValue)
@@ -73,14 +83,16 @@ namespace SoftwareInstallationBusinessLogic.BusinessLogics
             model.Count = viewModel.Count;
             model.PackageId = viewModel.PackageId;
 
-
+            var result = _orderStorage.Update(model);
-            if (_orderStorage.Update(model) == null)
+            if (result == null)
             {
                 model.Status--;
                 _logger.LogWarning("Неудачная операция обновления статуса");
                 return false;
             }
 
+            SendOrderMessage(result.ClientId, $"Установка ПО, Заказ №{result.Id}", $"Заказ №{model.Id} изменен статус на {result.Status}");
+
             return true;
         }
 
@@ -147,6 +159,7 @@ namespace SoftwareInstallationBusinessLogic.BusinessLogics
 
             _logger.LogInformation("Order. OrderId:{Id}.Sum:{Sum}. PackageId: {PackageId}", model.Id, model.Sum, model.PackageId);
         }
+
         public OrderViewModel? ReadElement(OrderSearchModel model)
         {
             if (model == null)
@@ -168,6 +181,25 @@ namespace SoftwareInstallationBusinessLogic.BusinessLogics
 
             return element;
         }
+
+        private bool SendOrderMessage(int clientId, string subject, string text)
+        {
+            var client = _clientLogic.ReadElement(new() { Id = clientId });
+
+            if (client == null)
+            {
+                return false;
+            }
+
+            _mailWorker.MailSendAsync(new()
+            {
+                MailAddress = client.Email,
+                Subject = subject,
+                Text = text
+            });
+
+            return true;
+        }
     }
 
 }

SoftwareInstallation/SoftwareInstallationBusinessLogic/MailWorker/AbsractMailWorker.cs

@@ -0,0 +1,85 @@
+using Microsoft.Extensions.Logging;
+using SoftwareInstallationContracts.BindingModels;
+using SoftwareInstallationContracts.BusinessLogicContracts;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SoftwareInstallationBusinessLogic.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();
+    }
+
+}

SoftwareInstallation/SoftwareInstallationBusinessLogic/MailWorker/MailKitWorker.cs

@@ -0,0 +1,83 @@
+using Microsoft.Extensions.Logging;
+using SoftwareInstallationContracts.BindingModels;
+using SoftwareInstallationContracts.BusinessLogicContracts;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Net.Mail;
+using System.Net;
+using System.Security.Authentication;
+using System.Text;
+using System.Threading.Tasks;
+using MailKit.Net.Pop3;
+using MailKit.Security;
+
+namespace SoftwareInstallationBusinessLogic.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 (MailKit.Security.AuthenticationException error)
+                { }
+                finally
+                {
+                    client.Disconnect(true);
+                }
+            });
+            return list;
+        }
+    }
+}

SoftwareInstallation/SoftwareInstallationBusinessLogic/SoftwareInstallationBusinessLogic.csproj

@@ -9,6 +9,7 @@
 
   <ItemGroup>
     <PackageReference Include="DocumentFormat.OpenXml" Version="3.0.2" />
+    <PackageReference Include="MailKit" Version="4.6.0" />
     <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="8.0.0" />
     <PackageReference Include="NLog.Extensions.Logging" Version="5.3.8" />
     <PackageReference Include="PdfSharp.MigraDoc.Standard" Version="1.51.15" />

SoftwareInstallation/SoftwareInstallationClientApp/Controllers/HomeController.cs

@@ -139,5 +139,14 @@ namespace SoftwareInstallationClientApp.Controllers
             var pack = APIClient.GetRequest<PackageViewModel>($"api/main/getpackage?packageId={package}");
             return count * (pack?.Price ?? 1);
         }
+        [HttpGet]
+        public IActionResult Mails()
+        {
+            if (APIClient.Client == null)
+            {
+                return Redirect("~/Home/Enter");
+            }
+            return View(APIClient.GetRequest<List<MessageInfoViewModel>>($"api/client/getmessages?clientId={APIClient.Client.Id}"));
+        }
     }
 }

SoftwareInstallation/SoftwareInstallationClientApp/Views/Home/Mails.cshtml

@@ -0,0 +1,54 @@
+@using SoftwareInstallationContracts.ViewModels
+
+@model List<MessageInfoViewModel>
+
+@{
+	ViewData["Title"] = "Mails";
+}
+
+<div class="text-center">
+	<h1 class="display-4">Письма</h1>
+</div>
+
+
+<div class="text-center">
+	@{
+		if (Model == null)
+		{
+					<h3 class="display-4">Авторизируйтесь</h3>
+			return;
+		}
+
+			<table class="table">
+				<thead>
+					<tr>
+						<th>
+							Дата письма
+						</th>
+						<th>
+							Тема
+						</th>
+						<th>
+							Содержание
+						</th>
+					</tr>
+				</thead>
+				<tbody>
+				@foreach (var item in Model)
+				{
+							<tr>
+								<td>
+							@Html.DisplayFor(modelItem => item.DateDelivery)
+								</td>
+								<td>
+							@Html.DisplayFor(modelItem => item.Subject)
+								</td>
+								<td>
+							@Html.DisplayFor(modelItem => item.Body)
+								</td>
+							</tr>
+				}
+				</tbody>
+			</table>
+	}
+</div>

SoftwareInstallation/SoftwareInstallationClientApp/Views/Shared/_Layout.cshtml

@@ -23,19 +23,22 @@
                 <div class="navbar-collapse collapse d-sm-inline-flex flex-smrow-reverse">
                     <ul class="navbar-nav flex-grow-1">
                         <li class="nav-item">
-                            <a class="nav-link text-dark" asparea="" asp-controller="Home" asp-action="Index">Заказы</a>
+                            <a class="nav-link text-dark" asp-area="" asp-controller="Home" asp-action="Index">Заказы</a>
                         </li>
                         <li class="nav-item">
-                            <a class="nav-link text-dark" asparea="" asp-controller="Home" asp-action="Privacy">
+                            <a class="nav-link text-dark" asp-area="" asp-controller="Home" asp-action="Privacy">
                                 Личные
                                 данные
                             </a>
                         </li>
                         <li class="nav-item">
-                            <a class="nav-link text-dark" asparea="" asp-controller="Home" asp-action="Enter">Вход</a>
+                            <a class="nav-link text-dark" asp-area="" asp-controller="Home" asp-action="Mails">Письма</a>
                         </li>
                         <li class="nav-item">
-                            <a class="nav-link text-dark" asparea="" asp-controller="Home"
+                            <a class="nav-link text-dark" asp-area="" asp-controller="Home" asp-action="Enter">Вход</a>
+                        </li>
+                        <li class="nav-item">
+                            <a class="nav-link text-dark" asp-area="" asp-controller="Home"
                                asp-action="Register">Регистрация</a>
                         </li>
                     </ul>

SoftwareInstallation/SoftwareInstallationContracts/BindingModels/MailConfigBindingModel.cs

@@ -0,0 +1,18 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SoftwareInstallationContracts.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; }
+    }
+}

SoftwareInstallation/SoftwareInstallationContracts/BindingModels/MailSendInfoBindingModel.cs

@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SoftwareInstallationContracts.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;
+    }
+}

SoftwareInstallation/SoftwareInstallationContracts/BindingModels/MessageInfoBindingModel.cs

@@ -0,0 +1,19 @@
+using SoftwareInstallationDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SoftwareInstallationContracts.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 string Subject { get; set; } = string.Empty;
+        public string Body { get; set; } = string.Empty;
+        public DateTime DateDelivery { get; set; }
+    }
+}

SoftwareInstallation/SoftwareInstallationContracts/BusinessLogicsContracts/IMessageInfoLogic.cs

@@ -0,0 +1,18 @@
+using SoftwareInstallationContracts.BindingModels;
+using SoftwareInstallationContracts.SearchModels;
+using SoftwareInstallationContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SoftwareInstallationContracts.BusinessLogicContracts
+{
+    public interface IMessageInfoLogic
+    {
+        List<MessageInfoViewModel>? ReadList(MessageInfoSearchModel? model);
+        bool Create(MessageInfoBindingModel model);
+    }
+
+}

SoftwareInstallation/SoftwareInstallationContracts/SearchModels/MessageInfoSearchModel.cs

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

SoftwareInstallation/SoftwareInstallationContracts/StoragesContracts/IMessageInfoStorage.cs

@@ -0,0 +1,20 @@
+using SoftwareInstallationContracts.BindingModels;
+using SoftwareInstallationContracts.SearchModels;
+using SoftwareInstallationContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SoftwareInstallationContracts.StoragesContracts
+{
+    public interface IMessageInfoStorage
+    {
+        List<MessageInfoViewModel> GetFullList();
+        List<MessageInfoViewModel> GetFilteredList(MessageInfoSearchModel model);
+        MessageInfoViewModel? GetElement(MessageInfoSearchModel model);
+        MessageInfoViewModel? Insert(MessageInfoBindingModel model);
+    }
+
+}

SoftwareInstallation/SoftwareInstallationContracts/ViewModels/MessageInfoViewModel.cs

@@ -0,0 +1,29 @@
+using SoftwareInstallationDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SoftwareInstallationContracts.ViewModels
+{
+    public class MessageInfoViewModel : IMessageInfoModel
+    {
+        public string MessageId { get; set; } = string.Empty;
+
+        public int? ClientId { get; set; }
+
+        [DisplayName("Имя отправителя")]
+        public string SenderName { get; set; } = string.Empty;
+
+        [DisplayName("Дата отправления")]
+        public DateTime DateDelivery { get; set; }
+
+        [DisplayName("Тема")]
+        public string Subject { get; set; } = string.Empty;
+
+        [DisplayName("Содержание")]
+        public string Body { get; set; } = string.Empty;
+    }
+}

SoftwareInstallation/SoftwareInstallationDataModels/IMessageInfoModel.cs

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

SoftwareInstallation/SoftwareInstallationDatabaseImplement/Client.cs

@@ -24,6 +24,8 @@ namespace SoftwareInstallationDatabaseImplement.Models
         [ForeignKey("ClientId")]
         public virtual List<Order> Orders { get; set; } =
         new();
+        [ForeignKey("ClientId")]
+        public virtual List<MessageInfo> Messages { get; set; } = new();
         public static Client? Create(ClientBindingModel model)
         {
             if (model == null)

SoftwareInstallation/SoftwareInstallationDatabaseImplement/MessageInfo.cs

@@ -0,0 +1,55 @@
+using SoftwareInstallationContracts.BindingModels;
+using SoftwareInstallationContracts.ViewModels;
+using SoftwareInstallationDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SoftwareInstallationDatabaseImplement.Models
+{
+    public class MessageInfo : IMessageInfoModel
+    {
+        [Key]
+        public string MessageId { get; private set; } = string.Empty;
+        public int? ClientId { get; private set; }
+        [Required]
+        public string SenderName { get; private set; } = string.Empty;
+        [Required]
+        public DateTime DateDelivery { get; private set; } = DateTime.Now;
+        [Required]
+        public string Subject { get; private set; } = string.Empty;
+        [Required]
+        public string Body { get; private set; } = string.Empty;
+        public virtual Client? Client { get; set; }
+
+        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,
+        };
+    }
+}

SoftwareInstallation/SoftwareInstallationDatabaseImplement/MessageInfoStorage.cs

@@ -0,0 +1,56 @@
+using SoftwareInstallationContracts.BindingModels;
+using SoftwareInstallationContracts.SearchModels;
+using SoftwareInstallationContracts.StoragesContracts;
+using SoftwareInstallationContracts.ViewModels;
+using SoftwareInstallationDatabaseImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SoftwareInstallationDatabaseImplement.Implements
+{
+    public class MessageInfoStorage : IMessageInfoStorage
+    {
+        public MessageInfoViewModel? GetElement(MessageInfoSearchModel model)
+        {
+            if (model.MessageId == null)
+                return null;
+            using var context = new SoftwareInstallationDatabase();
+            return context.MessageInfos.FirstOrDefault(x => x.MessageId == model.MessageId)?.GetViewModel;
+        }
+
+        public List<MessageInfoViewModel> GetFilteredList(MessageInfoSearchModel model)
+        {
+            if (!model.ClientId.HasValue)
+                return new();
+            using var context = new SoftwareInstallationDatabase();
+            return context.MessageInfos
+                .Where(x => x.ClientId == model.ClientId)
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+
+        public List<MessageInfoViewModel> GetFullList()
+        {
+            using var context = new SoftwareInstallationDatabase();
+            return context.MessageInfos
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+
+        public MessageInfoViewModel? Insert(MessageInfoBindingModel model)
+        {
+            var newMessage = MessageInfo.Create(model);
+            if (newMessage == null)
+            {
+                return null;
+            }
+            using var context = new SoftwareInstallationDatabase();
+            context.MessageInfos.Add(newMessage);
+            context.SaveChanges();
+            return newMessage.GetViewModel;
+        }
+    }
+}

SoftwareInstallation/SoftwareInstallationDatabaseImplement/Migrations/20240424054756_InitialCreate.Designer.cs

@@ -1,210 +0,0 @@
-// <auto-generated />
-using System;
-using Microsoft.EntityFrameworkCore;
-using Microsoft.EntityFrameworkCore.Infrastructure;
-using Microsoft.EntityFrameworkCore.Metadata;
-using Microsoft.EntityFrameworkCore.Migrations;
-using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
-using SoftwareInstallationDatabaseImplement;
-
-#nullable disable
-
-namespace SoftwareInstallationDatabaseImplement.Migrations
-{
-    [DbContext(typeof(SoftwareInstallationDatabase))]
-    [Migration("20240424054756_InitialCreate")]
-    partial class InitialCreate
-    {
-        /// <inheritdoc />
-        protected override void BuildTargetModel(ModelBuilder modelBuilder)
-        {
-#pragma warning disable 612, 618
-            modelBuilder
-                .HasAnnotation("ProductVersion", "7.0.17")
-                .HasAnnotation("Relational:MaxIdentifierLength", 128);
-
-            SqlServerModelBuilderExtensions.UseIdentityColumns(modelBuilder);
-
-            modelBuilder.Entity("SoftwareInstallationDatabaseImplement.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("SoftwareInstallationDatabaseImplement.Component", b =>
-                {
-                    b.Property<int>("Id")
-                        .ValueGeneratedOnAdd()
-                        .HasColumnType("int");
-
-                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
-
-                    b.Property<string>("ComponentName")
-                        .IsRequired()
-                        .HasColumnType("nvarchar(max)");
-
-                    b.Property<double>("Cost")
-                        .HasColumnType("float");
-
-                    b.HasKey("Id");
-
-                    b.ToTable("Components");
-                });
-
-            modelBuilder.Entity("SoftwareInstallationDatabaseImplement.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>("PackageId")
-                        .HasColumnType("int");
-
-                    b.Property<int>("Status")
-                        .HasColumnType("int");
-
-                    b.Property<double>("Sum")
-                        .HasColumnType("float");
-
-                    b.HasKey("Id");
-
-                    b.HasIndex("ClientId");
-
-                    b.HasIndex("PackageId");
-
-                    b.ToTable("Orders");
-                });
-
-            modelBuilder.Entity("SoftwareInstallationDatabaseImplement.Package", b =>
-                {
-                    b.Property<int>("Id")
-                        .ValueGeneratedOnAdd()
-                        .HasColumnType("int");
-
-                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
-
-                    b.Property<string>("PackageName")
-                        .IsRequired()
-                        .HasColumnType("nvarchar(max)");
-
-                    b.Property<double>("Price")
-                        .HasColumnType("float");
-
-                    b.HasKey("Id");
-
-                    b.ToTable("Packages");
-                });
-
-            modelBuilder.Entity("SoftwareInstallationDatabaseImplement.PackageComponent", b =>
-                {
-                    b.Property<int>("Id")
-                        .ValueGeneratedOnAdd()
-                        .HasColumnType("int");
-
-                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
-
-                    b.Property<int>("ComponentId")
-                        .HasColumnType("int");
-
-                    b.Property<int>("Count")
-                        .HasColumnType("int");
-
-                    b.Property<int>("PackageId")
-                        .HasColumnType("int");
-
-                    b.HasKey("Id");
-
-                    b.HasIndex("ComponentId");
-
-                    b.HasIndex("PackageId");
-
-                    b.ToTable("PackageComponents");
-                });
-
-            modelBuilder.Entity("SoftwareInstallationDatabaseImplement.Order", b =>
-                {
-                    b.HasOne("SoftwareInstallationDatabaseImplement.Client", null)
-                        .WithMany("Orders")
-                        .HasForeignKey("ClientId");
-
-                    b.HasOne("SoftwareInstallationDatabaseImplement.Package", "Package")
-                        .WithMany("Orders")
-                        .HasForeignKey("PackageId")
-                        .OnDelete(DeleteBehavior.Cascade)
-                        .IsRequired();
-
-                    b.Navigation("Package");
-                });
-
-            modelBuilder.Entity("SoftwareInstallationDatabaseImplement.PackageComponent", b =>
-                {
-                    b.HasOne("SoftwareInstallationDatabaseImplement.Component", "Component")
-                        .WithMany("PackageComponents")
-                        .HasForeignKey("ComponentId")
-                        .OnDelete(DeleteBehavior.Cascade)
-                        .IsRequired();
-
-                    b.HasOne("SoftwareInstallationDatabaseImplement.Package", "Package")
-                        .WithMany("Components")
-                        .HasForeignKey("PackageId")
-                        .OnDelete(DeleteBehavior.Cascade)
-                        .IsRequired();
-
-                    b.Navigation("Component");
-
-                    b.Navigation("Package");
-                });
-
-            modelBuilder.Entity("SoftwareInstallationDatabaseImplement.Client", b =>
-                {
-                    b.Navigation("Orders");
-                });
-
-            modelBuilder.Entity("SoftwareInstallationDatabaseImplement.Component", b =>
-                {
-                    b.Navigation("PackageComponents");
-                });
-
-            modelBuilder.Entity("SoftwareInstallationDatabaseImplement.Package", b =>
-                {
-                    b.Navigation("Components");
-
-                    b.Navigation("Orders");
-                });
-#pragma warning restore 612, 618
-        }
-    }
-}

SoftwareInstallation/SoftwareInstallationDatabaseImplement/Migrations/20240505115211_AddImplementer.cs

@@ -1,108 +0,0 @@
-using Microsoft.EntityFrameworkCore.Migrations;
-
-#nullable disable
-
-namespace SoftwareInstallationDatabaseImplement.Migrations
-{
-    /// <inheritdoc />
-    public partial class AddImplementer : Migration
-    {
-        /// <inheritdoc />
-        protected override void Up(MigrationBuilder migrationBuilder)
-        {
-            migrationBuilder.DropForeignKey(
-                name: "FK_Orders_Clients_ClientId",
-                table: "Orders");
-
-            migrationBuilder.AlterColumn<int>(
-                name: "ClientId",
-                table: "Orders",
-                type: "int",
-                nullable: false,
-                defaultValue: 0,
-                oldClrType: typeof(int),
-                oldType: "int",
-                oldNullable: true);
-
-            migrationBuilder.AddColumn<int>(
-                name: "ImplementerId",
-                table: "Orders",
-                type: "int",
-                nullable: true);
-
-            migrationBuilder.CreateTable(
-                name: "Implementers",
-                columns: table => new
-                {
-                    Id = table.Column<int>(type: "int", nullable: false)
-                        .Annotation("SqlServer:Identity", "1, 1"),
-                    ImplementerFIO = table.Column<string>(type: "nvarchar(max)", nullable: false),
-                    Password = table.Column<string>(type: "nvarchar(max)", nullable: false),
-                    WorkExperience = table.Column<int>(type: "int", nullable: false),
-                    Qualification = table.Column<int>(type: "int", nullable: false)
-                },
-                constraints: table =>
-                {
-                    table.PrimaryKey("PK_Implementers", x => x.Id);
-                });
-
-            migrationBuilder.CreateIndex(
-                name: "IX_Orders_ImplementerId",
-                table: "Orders",
-                column: "ImplementerId");
-
-            migrationBuilder.AddForeignKey(
-                name: "FK_Orders_Clients_ClientId",
-                table: "Orders",
-                column: "ClientId",
-                principalTable: "Clients",
-                principalColumn: "Id",
-                onDelete: ReferentialAction.Cascade);
-
-            migrationBuilder.AddForeignKey(
-                name: "FK_Orders_Implementers_ImplementerId",
-                table: "Orders",
-                column: "ImplementerId",
-                principalTable: "Implementers",
-                principalColumn: "Id");
-        }
-
-        /// <inheritdoc />
-        protected override void Down(MigrationBuilder migrationBuilder)
-        {
-            migrationBuilder.DropForeignKey(
-                name: "FK_Orders_Clients_ClientId",
-                table: "Orders");
-
-            migrationBuilder.DropForeignKey(
-                name: "FK_Orders_Implementers_ImplementerId",
-                table: "Orders");
-
-            migrationBuilder.DropTable(
-                name: "Implementers");
-
-            migrationBuilder.DropIndex(
-                name: "IX_Orders_ImplementerId",
-                table: "Orders");
-
-            migrationBuilder.DropColumn(
-                name: "ImplementerId",
-                table: "Orders");
-
-            migrationBuilder.AlterColumn<int>(
-                name: "ClientId",
-                table: "Orders",
-                type: "int",
-                nullable: true,
-                oldClrType: typeof(int),
-                oldType: "int");
-
-            migrationBuilder.AddForeignKey(
-                name: "FK_Orders_Clients_ClientId",
-                table: "Orders",
-                column: "ClientId",
-                principalTable: "Clients",
-                principalColumn: "Id");
-        }
-    }
-}

SoftwareInstallation/SoftwareInstallationDatabaseImplement/Migrations/20240519131005_InitialCreate.Designer.cs

@@ -12,8 +12,8 @@ using SoftwareInstallationDatabaseImplement;
 namespace SoftwareInstallationDatabaseImplement.Migrations
 {
     [DbContext(typeof(SoftwareInstallationDatabase))]
-    [Migration("20240505115211_AddImplementer")]
+    [Migration("20240519131005_InitialCreate")]
-    partial class AddImplementer
+    partial class InitialCreate
     {
         /// <inheritdoc />
         protected override void BuildTargetModel(ModelBuilder modelBuilder)
@@ -97,6 +97,36 @@ namespace SoftwareInstallationDatabaseImplement.Migrations
                     b.ToTable("Components");
                 });
 
+            modelBuilder.Entity("SoftwareInstallationDatabaseImplement.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.HasIndex("ClientId");
+
+                    b.ToTable("MessageInfos");
+                });
+
             modelBuilder.Entity("SoftwareInstallationDatabaseImplement.Models.Package", b =>
                 {
                     b.Property<int>("Id")
@@ -186,6 +216,15 @@ namespace SoftwareInstallationDatabaseImplement.Migrations
                     b.ToTable("Orders");
                 });
 
+            modelBuilder.Entity("SoftwareInstallationDatabaseImplement.Models.MessageInfo", b =>
+                {
+                    b.HasOne("SoftwareInstallationDatabaseImplement.Models.Client", "Client")
+                        .WithMany("ClientMessages")
+                        .HasForeignKey("ClientId");
+
+                    b.Navigation("Client");
+                });
+
             modelBuilder.Entity("SoftwareInstallationDatabaseImplement.Models.PackageComponent", b =>
                 {
                     b.HasOne("SoftwareInstallationDatabaseImplement.Models.Component", "Component")
@@ -237,6 +276,8 @@ namespace SoftwareInstallationDatabaseImplement.Migrations
 
             modelBuilder.Entity("SoftwareInstallationDatabaseImplement.Models.Client", b =>
                 {
+                    b.Navigation("ClientMessages");
+
                     b.Navigation("Orders");
                 });
 

SoftwareInstallation/SoftwareInstallationDatabaseImplement/Migrations/20240519131005_InitialCreate.cs

@@ -40,6 +40,22 @@ namespace SoftwareInstallationDatabaseImplement.Migrations
                     table.PrimaryKey("PK_Components", x => x.Id);
                 });
 
+            migrationBuilder.CreateTable(
+                name: "Implementers",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    ImplementerFIO = table.Column<string>(type: "nvarchar(max)", nullable: false),
+                    Password = table.Column<string>(type: "nvarchar(max)", nullable: false),
+                    WorkExperience = table.Column<int>(type: "int", nullable: false),
+                    Qualification = table.Column<int>(type: "int", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Implementers", x => x.Id);
+                });
+
             migrationBuilder.CreateTable(
                 name: "Packages",
                 columns: table => new
@@ -54,6 +70,27 @@ namespace SoftwareInstallationDatabaseImplement.Migrations
                     table.PrimaryKey("PK_Packages", x => x.Id);
                 });
 
+            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);
+                    table.ForeignKey(
+                        name: "FK_MessageInfos_Clients_ClientId",
+                        column: x => x.ClientId,
+                        principalTable: "Clients",
+                        principalColumn: "Id");
+                });
+
             migrationBuilder.CreateTable(
                 name: "Orders",
                 columns: table => new
@@ -61,12 +98,13 @@ namespace SoftwareInstallationDatabaseImplement.Migrations
                     Id = table.Column<int>(type: "int", nullable: false)
                         .Annotation("SqlServer:Identity", "1, 1"),
                     PackageId = table.Column<int>(type: "int", nullable: false),
+                    ClientId = table.Column<int>(type: "int", nullable: false),
+                    ImplementerId = table.Column<int>(type: "int", nullable: true),
                     Count = table.Column<int>(type: "int", nullable: false),
                     Sum = table.Column<double>(type: "float", nullable: false),
                     Status = table.Column<int>(type: "int", nullable: false),
                     DateCreate = table.Column<DateTime>(type: "datetime2", nullable: false),
-                    DateImplement = table.Column<DateTime>(type: "datetime2", nullable: true),
+                    DateImplement = table.Column<DateTime>(type: "datetime2", nullable: true)
-                    ClientId = table.Column<int>(type: "int", nullable: true)
                 },
                 constraints: table =>
                 {
@@ -75,6 +113,12 @@ namespace SoftwareInstallationDatabaseImplement.Migrations
                         name: "FK_Orders_Clients_ClientId",
                         column: x => x.ClientId,
                         principalTable: "Clients",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_Orders_Implementers_ImplementerId",
+                        column: x => x.ImplementerId,
+                        principalTable: "Implementers",
                         principalColumn: "Id");
                     table.ForeignKey(
                         name: "FK_Orders_Packages_PackageId",
@@ -111,11 +155,21 @@ namespace SoftwareInstallationDatabaseImplement.Migrations
                         onDelete: ReferentialAction.Cascade);
                 });
 
+            migrationBuilder.CreateIndex(
+                name: "IX_MessageInfos_ClientId",
+                table: "MessageInfos",
+                column: "ClientId");
+
             migrationBuilder.CreateIndex(
                 name: "IX_Orders_ClientId",
                 table: "Orders",
                 column: "ClientId");
 
+            migrationBuilder.CreateIndex(
+                name: "IX_Orders_ImplementerId",
+                table: "Orders",
+                column: "ImplementerId");
+
             migrationBuilder.CreateIndex(
                 name: "IX_Orders_PackageId",
                 table: "Orders",
@@ -135,6 +189,9 @@ namespace SoftwareInstallationDatabaseImplement.Migrations
         /// <inheritdoc />
         protected override void Down(MigrationBuilder migrationBuilder)
         {
+            migrationBuilder.DropTable(
+                name: "MessageInfos");
+
             migrationBuilder.DropTable(
                 name: "Orders");
 
@@ -144,6 +201,9 @@ namespace SoftwareInstallationDatabaseImplement.Migrations
             migrationBuilder.DropTable(
                 name: "Clients");
 
+            migrationBuilder.DropTable(
+                name: "Implementers");
+
             migrationBuilder.DropTable(
                 name: "Components");
 

SoftwareInstallation/SoftwareInstallationDatabaseImplement/Migrations/SoftwareInstallationDatabaseModelSnapshot.cs

@@ -94,6 +94,36 @@ namespace SoftwareInstallationDatabaseImplement.Migrations
                     b.ToTable("Components");
                 });
 
+            modelBuilder.Entity("SoftwareInstallationDatabaseImplement.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.HasIndex("ClientId");
+
+                    b.ToTable("MessageInfos");
+                });
+
             modelBuilder.Entity("SoftwareInstallationDatabaseImplement.Models.Package", b =>
                 {
                     b.Property<int>("Id")
@@ -183,6 +213,15 @@ namespace SoftwareInstallationDatabaseImplement.Migrations
                     b.ToTable("Orders");
                 });
 
+            modelBuilder.Entity("SoftwareInstallationDatabaseImplement.Models.MessageInfo", b =>
+                {
+                    b.HasOne("SoftwareInstallationDatabaseImplement.Models.Client", "Client")
+                        .WithMany("ClientMessages")
+                        .HasForeignKey("ClientId");
+
+                    b.Navigation("Client");
+                });
+
             modelBuilder.Entity("SoftwareInstallationDatabaseImplement.Models.PackageComponent", b =>
                 {
                     b.HasOne("SoftwareInstallationDatabaseImplement.Models.Component", "Component")
@@ -234,6 +273,8 @@ namespace SoftwareInstallationDatabaseImplement.Migrations
 
             modelBuilder.Entity("SoftwareInstallationDatabaseImplement.Models.Client", b =>
                 {
+                    b.Navigation("ClientMessages");
+
                     b.Navigation("Orders");
                 });
 

SoftwareInstallation/SoftwareInstallationDatabaseImplement/SoftwareInstallationDatabase.cs

@@ -15,7 +15,7 @@ namespace SoftwareInstallationDatabaseImplement
         {
             if (optionsBuilder.IsConfigured == false)
             {
-                optionsBuilder.UseSqlServer(@"Data Source=WIN-45522256GVD\SQLEXPRESS;Initial Catalog=SoftwareInstallationDatabase1;Integrated Security=True;MultipleActiveResultSets=True;TrustServerCertificate=True");
+                optionsBuilder.UseSqlServer(@"Data Source=WIN-45522256GVD\SQLEXPRESS;Initial Catalog=SoftwareInstallationDatabase3;Integrated Security=True;MultipleActiveResultSets=True;TrustServerCertificate=True");
             }
             base.OnConfiguring(optionsBuilder);
         }
@@ -25,5 +25,6 @@ namespace SoftwareInstallationDatabaseImplement
         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; }
     }
 }

SoftwareInstallation/SoftwareInstallationDatabaseImplement/SoftwareInstallationDatabaseImplement.csproj

@@ -21,8 +21,4 @@
     <ProjectReference Include="..\SoftwareInstallationDataModels\SoftwareInstallationDataModels.csproj" />
   </ItemGroup>
 
-  <ItemGroup>
-    <Folder Include="Migrations\" />
-  </ItemGroup>
-
 </Project>

SoftwareInstallation/SoftwareInstallationFileImplement/DataFileSingleton.cs

@@ -17,11 +17,13 @@ namespace SoftwareInstallationFileImplement
         private readonly string PackageFileName = "Package.xml";
         private readonly string ClientFileName = "Client.xml";
         private readonly string ImplementerFileName = "Implementer.xml";
+        private readonly string MessageInfoFileName = "MessageInfo.xml";
         public List<Component> Components { get; private set; }
         public List<Order> Orders { get; private set; }
         public List<Package> Packages { get; private set; }
         public List<Client> Clients { get; private set; }
         public List<Implementer> Implementers { get; private set; }
+        public List<MessageInfo> Messages { get; private set; }
         public static DataFileSingleton GetInstance()
         {
             if (instance == null)
@@ -35,6 +37,7 @@ namespace SoftwareInstallationFileImplement
         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 SaveMessages() => SaveData(Orders, ImplementerFileName, "Messages", x => x.GetXElement);
 
         private DataFileSingleton()
         {
@@ -43,6 +46,7 @@ namespace SoftwareInstallationFileImplement
             Orders = LoadData(OrderFileName, "Order", x => Order.Create(x)!)!;
             Clients = LoadData(ClientFileName, "Client", x => Client.Create(x)!)!;
             Implementers = LoadData(ImplementerFileName, "Implementer", x => Implementer.Create(x)!)!;
+            Messages = LoadData(MessageInfoFileName, "MessageInfo", x => MessageInfo.Create(x)!)!;
         }
         private static List<T>? LoadData<T>(string filename, string xmlNodeName, Func<XElement, T> selectFunction)
         {

SoftwareInstallation/SoftwareInstallationFileImplement/Implementer.cs

@@ -1,6 +1,7 @@
 using SoftwareInstallationContracts.BindingModels;
 using SoftwareInstallationContracts.ViewModels;
 using SoftwareInstallationDataModels;
+using SoftwareInstallationDataModels.Models;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -8,71 +9,79 @@ using System.Text;
 using System.Threading.Tasks;
 using System.Xml.Linq;
 
-namespace SoftwareInstallationFileImplement
+namespace SoftwareInstallationFileImplement.Models
 {
     public class Implementer : IImplementerModel
     {
-        public int Id { get; private set; }
         public string ImplementerFIO { get; private set; } = string.Empty;
-        public string Password { get; set; } = string.Empty;
+
-        public int Qualification { get; set; } = 0;
+        public string Password { get; private set; } = string.Empty;
-        public int WorkExperience { get; set; } = 0;
+
-        public static Implementer? Create(ImplementerBindingModel model)
+        public int WorkExperience { get; private set; }
-        {
+
-            if (model == null)
+        public int Qualification { get; private set; }
-            {
+
-                return null;
+        public int Id { get; private set; }
-            }
+
-            return new Implementer()
-            {
-                Id = model.Id,
-                ImplementerFIO = model.ImplementerFIO,
-                Password = model.Password,
-                WorkExperience = model.WorkExperience,
-                Qualification = model.Qualification
-            };
-        }
-        public void Update(ImplementerBindingModel model)
-        {
-            if (model == null)
-            {
-                return;
-            }
-            ImplementerFIO = model.ImplementerFIO;
-            Password = model.Password;
-            WorkExperience = model.WorkExperience;
-            Qualification = model.Qualification;
-        }
-        public ImplementerViewModel GetViewModel => new()
-        {
-            Id = Id,
-            ImplementerFIO = ImplementerFIO,
-            Password = Password,
-            WorkExperience = WorkExperience,
-            Qualification = Qualification
-        };
         public static Implementer? Create(XElement element)
         {
             if (element == null)
             {
                 return null;
             }
-            return new Implementer()
+            return new()
             {
-                Id = Convert.ToInt32(element.Attribute("Id")!.Value),
+                ImplementerFIO = element.Element("FIO")!.Value,
-                ImplementerFIO = element.Element("ImplementerFIO")!.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)
+                WorkExperience = Convert.ToInt32(element.Element("WorkExperience")!.Value),
             };
         }
 
-        public XElement GetXElement => new("Implementer",
+        public static Implementer? Create(ImplementerBindingModel model)
-                new XAttribute("Id", Id),
+        {
-                new XElement("ImplementerFIO", ImplementerFIO),
+            if (model == null)
-                new XElement("Password", Password),
+            {
-                new XElement("Qualification", Qualification.ToString()),
+                return null;
-                new XElement("WorkExperience", WorkExperience.ToString())
+            }
+            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,
+            WorkExperience = WorkExperience
+        };
+
+        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)
             );
     }
 }

SoftwareInstallation/SoftwareInstallationFileImplement/ImplementerStorage.cs

@@ -2,81 +2,107 @@
 using SoftwareInstallationContracts.SearchModels;
 using SoftwareInstallationContracts.StoragesContracts;
 using SoftwareInstallationContracts.ViewModels;
+using SoftwareInstallationFileImplement.Models;
 using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 
-namespace SoftwareInstallationFileImplement
+namespace SoftwareInstallationFileImplement.Implements
 {
     public class ImplementerStorage : IImplementerStorage
     {
-        private readonly DataFileSingleton source;
+        private readonly DataFileSingleton _source;
         public ImplementerStorage()
         {
-            source = DataFileSingleton.GetInstance();
+            _source = DataFileSingleton.GetInstance();
-        }
-        public List<ImplementerViewModel> GetFullList()
-        {
-            return source.Implementers
-            .Select(x => x.GetViewModel)
-           .ToList();
-        }
-        public List<ImplementerViewModel> GetFilteredList(ImplementerSearchModel
-       model)
-        {
-            if (string.IsNullOrEmpty(model.ImplementerFIO) && string.IsNullOrEmpty(model.Password))
-            {
-                return new();
-            }
-            return source.Implementers
-            .Where(x => (string.IsNullOrEmpty(model.ImplementerFIO) || x.ImplementerFIO.Contains(model.ImplementerFIO)) &&
-            (string.IsNullOrEmpty(model.Password) || x.Password.Contains(model.Password)))
-           .Select(x => x.GetViewModel)
-           .ToList();
-        }
-        public ImplementerViewModel? GetElement(ImplementerSearchModel model)
-        {
-            return source.Implementers
-            .FirstOrDefault(x => (string.IsNullOrEmpty(model.ImplementerFIO) || x.ImplementerFIO == model.ImplementerFIO) &&
-                                 (!model.Id.HasValue || x.Id == model.Id) && (string.IsNullOrEmpty(model.Password) || x.Password == model.Password))
-            ?.GetViewModel;
-        }
-        public ImplementerViewModel? Insert(ImplementerBindingModel model)
-        {
-            model.Id = source.Implementers.Count > 0 ? source.Implementers.Max(x =>
-           x.Id) + 1 : 1;
-            var newImplementer = Implementer.Create(model);
-            if (newImplementer == null)
-            {
-                return null;
-            }
-            source.Implementers.Add(newImplementer);
-            source.SaveImplementers();
-            return newImplementer.GetViewModel;
-        }
-        public ImplementerViewModel? Update(ImplementerBindingModel model)
-        {
-            var implementer = source.Implementers.FirstOrDefault(x => x.Id == model.Id);
-            if (implementer == null)
-            {
-                return null;
-            }
-            implementer.Update(model);
-            source.SaveImplementers();
-            return implementer.GetViewModel;
         }
         public ImplementerViewModel? Delete(ImplementerBindingModel model)
         {
-            var element = source.Implementers.FirstOrDefault(rec => rec.Id == model.Id);
+            var res = _source.Implementers.FirstOrDefault(x => x.Id == model.Id);
-            if (element != null)
+
+            if (res != null)
             {
-                source.Implementers.Remove(element);
+                _source.Implementers.Remove(res);
-                source.SaveImplementers();
+                _source.SaveImplementers();
-                return element.GetViewModel;
             }
+            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)
+            {
+                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;
+        }
     }
 }

SoftwareInstallation/SoftwareInstallationFileImplement/MessageInfo.cs

@@ -0,0 +1,79 @@
+using SoftwareInstallationContracts.BindingModels;
+using SoftwareInstallationContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Linq;
+
+namespace SoftwareInstallationFileImplement
+{
+    public class MessageInfo
+    {
+        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,
+                DateDelivery = model.DateDelivery,
+                SenderName = model.SenderName,
+                ClientId = model.ClientId,
+                MessageId = model.MessageId
+            };
+        }
+
+        public static MessageInfo? Create(XElement element)
+        {
+            if (element == null)
+            {
+                return null;
+            }
+            return new()
+            {
+                Body = element.Attribute("Body")!.Value,
+                Subject = element.Attribute("Subject")!.Value,
+                DateDelivery = Convert.ToDateTime(element.Attribute("DateDelivery")!.Value),
+                SenderName = element.Attribute("SenderName")!.Value,
+                ClientId = Convert.ToInt32(element.Attribute("ClientId")!.Value),
+                MessageId = element.Attribute("MessageId")!.Value,
+            };
+        }
+
+        public MessageInfoViewModel GetViewModel => new()
+        {
+            Body = Body,
+            Subject = Subject,
+            DateDelivery = DateDelivery,
+            SenderName = SenderName,
+            ClientId = ClientId,
+            MessageId = MessageId
+        };
+
+        public XElement GetXElement => new("MessageInfo",
+            new XAttribute("Subject", Subject),
+            new XAttribute("Body", Body),
+            new XAttribute("ClientId", ClientId),
+            new XAttribute("MessageId", MessageId),
+            new XAttribute("SenderName", SenderName),
+            new XAttribute("DateDelivery", DateDelivery)
+            );
+    }
+}

SoftwareInstallation/SoftwareInstallationFileImplement/MessageInfoStorage.cs

@@ -0,0 +1,57 @@
+using SoftwareInstallationContracts.BindingModels;
+using SoftwareInstallationContracts.SearchModels;
+using SoftwareInstallationContracts.StoragesContracts;
+using SoftwareInstallationContracts.ViewModels;
+using SoftwareInstallationFileImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SoftwareInstallationFileImplement.Implements
+{
+    public class MessageInfoStorage : IMessageInfoStorage
+    {
+        private readonly DataFileSingleton source;
+        public MessageInfoStorage()
+        {
+            source = DataFileSingleton.GetInstance();
+        }
+        public MessageInfoViewModel? GetElement(MessageInfoSearchModel model)
+        {
+            if (model.MessageId == null)
+                return null;
+            return source.Messages.FirstOrDefault(x => x.MessageId == model.MessageId)?.GetViewModel;
+        }
+
+        public List<MessageInfoViewModel> GetFilteredList(MessageInfoSearchModel model)
+        {
+            if (!model.ClientId.HasValue)
+                return new();
+            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;
+        }
+    }
+}

SoftwareInstallation/SoftwareInstallationListImplement/DataListSingleton.cs

@@ -15,6 +15,7 @@ namespace SoftwareInstallationListImplement
         public List<Package> Packages { get; set; }
         public List<Client> Clients { get; set; }
         public List<Implementer> Implementers { get; set; }
+        public List<MessageInfo> Messages { get; set; }
         private DataListSingleton()
         {
             Components = new List<Component>();
@@ -22,6 +23,7 @@ namespace SoftwareInstallationListImplement
             Packages = new List<Package>();
             Clients = new List<Client>();
             Implementers = new List<Implementer>();
+            Messages = new List<MessageInfo>();
         }
         public static DataListSingleton GetInstance()
         {

SoftwareInstallation/SoftwareInstallationListImplement/ImplementerStorage.cs

@@ -2,13 +2,14 @@
 using SoftwareInstallationContracts.SearchModels;
 using SoftwareInstallationContracts.StoragesContracts;
 using SoftwareInstallationContracts.ViewModels;
+using SoftwareInstallationListImplement.Models;
 using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 
-namespace SoftwareInstallationListImplement
+namespace SoftwareInstallationListImplement.Implements
 {
     public class ImplementerStorage : IImplementerStorage
     {
@@ -104,14 +105,13 @@ namespace SoftwareInstallationListImplement
                 }
             }
 
-            var newImplementer = Implementer.Create(model);
+            var res = Implementer.Create(model);
-            if (newImplementer == null)
-            {
-                return null;
-            }
 
-            _source.Implementers.Add(newImplementer);
+            if (res != null)
-            return newImplementer.GetViewModel;
+            {
+                _source.Implementers.Add(res);
+            }
+            return res?.GetViewModel;
         }
 
         public ImplementerViewModel? Update(ImplementerBindingModel model)

SoftwareInstallation/SoftwareInstallationListImplement/MessageInfo.cs

@@ -0,0 +1,53 @@
+using SoftwareInstallationContracts.BindingModels;
+using SoftwareInstallationContracts.ViewModels;
+using SoftwareInstallationDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SoftwareInstallationListImplement.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,
+                DateDelivery = model.DateDelivery,
+                SenderName = model.SenderName,
+                ClientId = model.ClientId,
+                MessageId = model.MessageId
+            };
+        }
+
+        public MessageInfoViewModel GetViewModel => new()
+        {
+            Body = Body,
+            Subject = Subject,
+            DateDelivery = DateDelivery,
+            SenderName = SenderName,
+            ClientId = ClientId,
+            MessageId = MessageId
+        };
+    }
+}

SoftwareInstallation/SoftwareInstallationListImplement/MessageInfoStorage.cs

@@ -0,0 +1,73 @@
+using SoftwareInstallationContracts.BindingModels;
+using SoftwareInstallationContracts.SearchModels;
+using SoftwareInstallationContracts.StoragesContracts;
+using SoftwareInstallationContracts.ViewModels;
+using SoftwareInstallationListImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SoftwareInstallationListImplement.Implements
+{
+    public class MessageInfoStorage : IMessageInfoStorage
+    {
+        private readonly DataListSingleton _source;
+        public MessageInfoStorage()
+        {
+            _source = DataListSingleton.GetInstance();
+        }
+        public MessageInfoViewModel? GetElement(MessageInfoSearchModel model)
+        {
+            if (model.MessageId == null)
+            {
+                return null;
+            }
+            foreach (var message in _source.Messages)
+            {
+                if (model.MessageId.Equals(message.MessageId))
+                    return message.GetViewModel;
+            }
+            return null;
+        }
+
+        public List<MessageInfoViewModel> GetFilteredList(MessageInfoSearchModel model)
+        {
+            if (!model.ClientId.HasValue)
+            {
+                return new();
+            }
+            var result = new List<MessageInfoViewModel>();
+            foreach (var item in _source.Messages)
+            {
+                if (item.ClientId == model.ClientId)
+                {
+                    result.Add(item.GetViewModel);
+                }
+            }
+            return result;
+        }
+
+        public List<MessageInfoViewModel> GetFullList()
+        {
+            var result = new List<MessageInfoViewModel>();
+            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;
+        }
+    }
+}

SoftwareInstallation/SoftwareInstallationRestApi/Controllers/ClientController.cs

@@ -1,5 +1,6 @@
 using Microsoft.AspNetCore.Mvc;
 using SoftwareInstallationContracts.BindingModels;
+using SoftwareInstallationContracts.BusinessLogicContracts;
 using SoftwareInstallationContracts.BusinessLogicsContracts;
 using SoftwareInstallationContracts.SearchModels;
 using SoftwareInstallationContracts.ViewModels;
@@ -12,11 +13,12 @@ namespace SoftwareInstallationRestApi.Controllers
     {
         private readonly ILogger _logger;
         private readonly IClientLogic _logic;
-        public ClientController(IClientLogic logic, ILogger<ClientController>
+        private readonly IMessageInfoLogic _mailLogic;
-       logger)
+        public ClientController(IClientLogic logic, IMessageInfoLogic mailLogic, ILogger<ClientController> logger)
         {
             _logger = logger;
             _logic = logic;
+            _mailLogic = mailLogic;
         }
         [HttpGet]
         public ClientViewModel? Login(string login, string password)
@@ -61,5 +63,21 @@ namespace SoftwareInstallationRestApi.Controllers
                 throw;
             }
         }
+        [HttpGet]
+        public List<MessageInfoViewModel>? GetMessages(int clientId)
+        {
+            try
+            {
+                return _mailLogic.ReadList(new MessageInfoSearchModel
+                {
+                    ClientId = clientId
+                });
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Error receiving client's emails");
+                throw;
+            }
+        }
     }
 }

SoftwareInstallation/SoftwareInstallationRestApi/Program.cs

@@ -1,5 +1,8 @@
 using Microsoft.OpenApi.Models;
 using SoftwareInstallationBusinessLogic.BusinessLogics;
+using SoftwareInstallationBusinessLogic.MailWorker;
+using SoftwareInstallationContracts.BindingModels;
+using SoftwareInstallationContracts.BusinessLogicContracts;
 using SoftwareInstallationContracts.BusinessLogicsContracts;
 using SoftwareInstallationContracts.StoragesContracts;
 using SoftwareInstallationDatabaseImplement;
@@ -13,10 +16,15 @@ builder.Services.AddTransient<IClientStorage, ClientStorage>();
 builder.Services.AddTransient<IOrderStorage, OrderStorage>();
 builder.Services.AddTransient<IPackageStorage, PackageStorage>();
 builder.Services.AddTransient<IImplementerStorage, ImplementerStorage>();
+builder.Services.AddTransient<IMessageInfoStorage, MessageInfoStorage>();
+
 builder.Services.AddTransient<IOrderLogic, OrderLogic>();
 builder.Services.AddTransient<IClientLogic, ClientLogic>();
 builder.Services.AddTransient<IPackageLogic, PackageLogic>();
 builder.Services.AddTransient<IImplementerLogic, ImplementerLogic>();
+builder.Services.AddTransient<IMessageInfoLogic, MessageInfoLogic>();
+
+builder.Services.AddSingleton<AbstractMailWorker, MailKitWorker>();
 builder.Services.AddControllers();
 // Learn more about configuring Swagger/OpenAPI at
 https://aka.ms/aspnetcore/swashbuckle
@@ -30,6 +38,19 @@ builder.Services.AddSwaggerGen(c =>
     });
 });
 var app = builder.Build();
+
+var mailSender = app.Services.GetService<AbstractMailWorker>();
+
+mailSender?.MailConfig(new MailConfigBindingModel
+{
+    MailLogin = builder.Configuration?.GetSection("MailLogin")?.Value?.ToString() ?? string.Empty,
+    MailPassword = builder.Configuration?.GetSection("MailPassword")?.Value?.ToString() ?? string.Empty,
+    SmtpClientHost = builder.Configuration?.GetSection("SmtpClientHost")?.Value?.ToString() ?? string.Empty,
+    SmtpClientPort = Convert.ToInt32(builder.Configuration?.GetSection("SmtpClientPort")?.Value?.ToString()),
+    PopHost = builder.Configuration?.GetSection("PopHost")?.Value?.ToString() ?? string.Empty,
+    PopPort = Convert.ToInt32(builder.Configuration?.GetSection("PopPort")?.Value?.ToString())
+});
+
 // Configure the HTTP request pipeline.
 if (app.Environment.IsDevelopment())
 {

SoftwareInstallation/SoftwareInstallationRestApi/appsettings.json

@@ -5,5 +5,11 @@
       "Microsoft.AspNetCore": "Warning"
     }
   },
-  "AllowedHosts": "*"
+  "AllowedHosts": "*",
+  "SmtpClientHost": "smtp.gmail.com",
+  "SmtpClientPort": "587",
+  "PopHost": "pop.gmail.com",
+  "PopPort": "995",
+  "MailLogin": "klkaznacheeva77@gmail.com",
+  "MailPassword": "cvtw wtje cfws bhjd"
 }

SoftwareInstallation/SoftwareInstallationView/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="klkaznacheeva77@gmail.com" />
+		<add key ="MailPassword" value="cvtw wtje cfws bhjd"/>
+	</appSettings>
+</configuration>

SoftwareInstallation/SoftwareInstallationView/FormMails.Designer.cs

@@ -0,0 +1,59 @@
+namespace SoftwareInstallationView
+{
+    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()
+        {
+            DataGridView = new DataGridView();
+            ((System.ComponentModel.ISupportInitialize)DataGridView).BeginInit();
+            SuspendLayout();
+            // 
+            // DataGridView
+            // 
+            DataGridView.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            DataGridView.Location = new Point(3, 2);
+            DataGridView.Name = "DataGridView";
+            DataGridView.Size = new Size(794, 445);
+            DataGridView.TabIndex = 1;
+            // 
+            // FormMails
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(800, 450);
+            Controls.Add(DataGridView);
+            Name = "FormMails";
+            Text = "Эл. письма";
+            ((System.ComponentModel.ISupportInitialize)DataGridView).EndInit();
+            ResumeLayout(false);
+        }
+
+        #endregion
+
+        private DataGridView DataGridView;
+    }
+}

SoftwareInstallation/SoftwareInstallationView/FormMails.cs

@@ -0,0 +1,55 @@
+using Microsoft.Extensions.Logging;
+using SoftwareInstallationContracts.BusinessLogicContracts;
+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 SoftwareInstallationView
+{
+    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;
+            LoadData();
+        }
+
+        private void LoadData()
+        {
+            try
+            {
+                var list = _logic.ReadList(null);
+                if (list != null)
+                {
+                    DataGridView.DataSource = list;
+                    DataGridView.Columns["ClientId"].Visible = false;
+                    DataGridView.Columns["MessageId"].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);
+            }
+        }
+
+        private void FormMails_Load(object sender, EventArgs e)
+        {
+            LoadData();
+        }
+    }
+}

SoftwareInstallation/SoftwareInstallationView/FormMails.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!--
+    Microsoft ResX Schema 
+
+    Version 2.0
+
+    The primary goals of this format is to allow a simple XML format
+    that is mostly human readable. The generation and parsing of the
+    various data types are done through the TypeConverter classes
+    associated with the data types.
+
+    Example:
+
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+
+    There are any number of "resheader" rows that contain simple
+    name/value pairs.
+
+    Each data row contains a name, and value. The row also contains a
+    type or mimetype. Type corresponds to a .NET class that support
+    text/value conversion through the TypeConverter architecture.
+    Classes that don't support this are serialized and stored with the
+    mimetype set.
+
+    The mimetype is used for serialized objects, and tells the
+    ResXResourceReader how to depersist the object. This is currently not
+    extensible. For a given mimetype the value must be set accordingly:
+
+    Note - application/x-microsoft.net.object.binary.base64 is the format
+    that the ResXResourceWriter will generate, however the reader can
+    read any of the formats listed below.
+
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <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>

SoftwareInstallation/SoftwareInstallationView/FormMain.Designer.cs

@@ -43,13 +43,14 @@
             buttonCreateOrder = new Button();
             buttonIssuedOrder = new Button();
             buttonRefresh = new Button();
+            почтаToolStripMenuItem = new ToolStripMenuItem();
             menuStrip.SuspendLayout();
             ((System.ComponentModel.ISupportInitialize)dataGridView).BeginInit();
             SuspendLayout();
             // 
             // menuStrip
             // 
-            menuStrip.Items.AddRange(new ToolStripItem[] { справочникиToolStripMenuItem, отчетыToolStripMenuItem, запускРаботToolStripMenuItem });
+            menuStrip.Items.AddRange(new ToolStripItem[] { справочникиToolStripMenuItem, отчетыToolStripMenuItem, запускРаботToolStripMenuItem, почтаToolStripMenuItem });
             menuStrip.Location = new Point(0, 0);
             menuStrip.Name = "menuStrip";
             menuStrip.Size = new Size(1180, 24);
@@ -164,6 +165,13 @@
             buttonRefresh.UseVisualStyleBackColor = true;
             buttonRefresh.Click += buttonRefresh_Click;
             // 
+            // почтаToolStripMenuItem
+            // 
+            почтаToolStripMenuItem.Name = "почтаToolStripMenuItem";
+            почтаToolStripMenuItem.Size = new Size(53, 20);
+            почтаToolStripMenuItem.Text = "Почта";
+            почтаToolStripMenuItem.Click += почтаToolStripMenuItem_Click;
+            // 
             // FormMain
             // 
             AutoScaleDimensions = new SizeF(7F, 15F);
@@ -202,5 +210,6 @@
         private ToolStripMenuItem запускРаботToolStripMenuItem;
         private ToolStripMenuItem клиентыToolStripMenuItem;
         private ToolStripMenuItem исполнителиToolStripMenuItem;
+        private ToolStripMenuItem почтаToolStripMenuItem;
     }
 }

SoftwareInstallation/SoftwareInstallationView/FormMain.cs

@@ -182,5 +182,14 @@ namespace SoftwareInstallationView
             _workProcess.DoWork((Program.ServiceProvider?.GetService(typeof(IImplementerLogic)) as IImplementerLogic)!, _orderLogic);
             MessageBox.Show("Процесс обработки запущен", "Сообщение", MessageBoxButtons.OK, MessageBoxIcon.Information);
         }
+
+        private void почтаToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(typeof(FormMails));
+            if (service is FormMails form)
+            {
+                form.ShowDialog();
+            }
+        }
     }
 }

SoftwareInstallation/SoftwareInstallationView/Program.cs

@@ -9,6 +9,9 @@ using SoftwareInstallationContracts.StoragesContracts;
 using SoftwareInstallationDatabaseImplement;
 using SoftwareInstallationView;
 using SoftwareInstallationDatabaseImplement.Implements;
+using SoftwareInstallationBusinessLogic.MailWorker;
+using SoftwareInstallationContracts.BindingModels;
+using SoftwareInstallationContracts.BusinessLogicContracts;
 
 namespace SoftwareInstallation
 {
@@ -28,6 +31,26 @@ namespace SoftwareInstallation
             var services = new ServiceCollection();
             ConfigureServices(services);
             _serviceProvider = services.BuildServiceProvider();
+            try
+            {
+                var mailSender = _serviceProvider.GetService<AbstractMailWorker>();
+                mailSender?.MailConfig(new MailConfigBindingModel
+                {
+                    MailLogin = System.Configuration.ConfigurationManager.AppSettings["MailLogin"] ?? string.Empty,
+                    MailPassword = System.Configuration.ConfigurationManager.AppSettings["MailPassword"] ?? string.Empty,
+                    SmtpClientHost = System.Configuration.ConfigurationManager.AppSettings["SmtpClientHost"] ?? string.Empty,
+                    SmtpClientPort = Convert.ToInt32(System.Configuration.ConfigurationManager.AppSettings["SmtpClientPort"]),
+                    PopHost = System.Configuration.ConfigurationManager.AppSettings["PopHost"] ?? string.Empty,
+                    PopPort = Convert.ToInt32(System.Configuration.ConfigurationManager.AppSettings["PopPort"])
+                });
+
+                var timer = new System.Threading.Timer(new TimerCallback(MailCheck!), null, 0, 100000);
+            }
+            catch (Exception ex)
+            {
+                var logger = _serviceProvider.GetService<ILogger>();
+                logger?.LogError(ex, "Mails Problem");
+            }
             Application.Run(_serviceProvider.GetRequiredService<FormMain>());
         }
         private static void ConfigureServices(ServiceCollection services)
@@ -42,6 +65,7 @@ namespace SoftwareInstallation
             services.AddTransient<IPackageStorage, PackageStorage>();
             services.AddTransient<IClientStorage, ClientStorage>();
             services.AddTransient<IImplementerStorage, ImplementerStorage>();
+            services.AddTransient<IMessageInfoStorage, MessageInfoStorage>();
 
             services.AddTransient<IComponentLogic, ComponentLogic>();
             services.AddTransient<IClientLogic, ClientLogic>();
@@ -50,7 +74,9 @@ namespace SoftwareInstallation
             services.AddTransient<IReportLogic, ReportLogic>();
             services.AddTransient<IImplementerLogic, ImplementerLogic>();
             services.AddTransient<IWorkProcess, WorkModeling>();
+            services.AddTransient<IMessageInfoLogic, MessageInfoLogic>();
 
+            services.AddSingleton<AbstractMailWorker, MailKitWorker>();
             services.AddTransient<AbstractSaveToWord, SaveToWord>();
             services.AddTransient<AbstractSaveToExcel, SaveToExcel>();
             services.AddTransient<AbstractSaveToPdf, SaveToPdf>();
@@ -66,6 +92,9 @@ namespace SoftwareInstallation
             services.AddTransient<FormImplementers>();
             services.AddTransient<FormReportPackageComponents>();
             services.AddTransient<FormReportOrders>();
+            services.AddTransient<FormMails>();
+
         }
+        private static void MailCheck(object obj) => ServiceProvider?.GetService<AbstractMailWorker>()?.MailCheck();
     }
 }