BusinessLogic/BusinessLogic/UserLogic.cs

@@ -25,11 +25,14 @@ namespace BusinessLogic.BusinessLogic
     {
         private readonly ILogger _logger;
         private readonly IUserStorage _userStorage;
+        private readonly ITwoFactorAuthService _twoFactorAuthService;
 
-        public UserLogic(ILogger<UserLogic> logger, IUserStorage userStorage)
+        public UserLogic(ILogger<UserLogic> logger, IUserStorage userStorage,
+            ITwoFactorAuthService twoFactorAuthService)
         {
             _logger = logger;
             _userStorage = userStorage;
+            _twoFactorAuthService = twoFactorAuthService;
         }
 
         public string Create(UserBindingModel model)
@@ -53,6 +56,9 @@ namespace BusinessLogic.BusinessLogic
 
             MailSender.Send(new MailRegistration(user));
 
+            string code = _twoFactorAuthService.GenerateCode();
+            MailSender.Send(new MailTwoFactorCode(user, code));
+
             return JwtProvider.Generate(user);
         }
 
@@ -132,6 +138,10 @@ namespace BusinessLogic.BusinessLogic
             {
                 throw new AccountException("The passwords don't match.");
             }
+
+            string code = _twoFactorAuthService.GenerateCode();
+            MailSender.Send(new MailTwoFactorCode(user, code));
+
             return JwtProvider.Generate(user);
         }
 
@@ -166,5 +176,10 @@ namespace BusinessLogic.BusinessLogic
                 throw new AccountException("The email is not valid.");
             }
         }
+
+        public bool VerifyCode(string code)
+        {
+            return _twoFactorAuthService.Verify(code);
+        }
     }
 }

BusinessLogic/Tools/Mail/Mail.cs

@@ -6,10 +6,11 @@ using System.Threading.Tasks;
 
 namespace BusinessLogic.Tools.Mail
 {
-	public class Mail
-	{
-		public IEnumerable<string> To { get; set; } = null!;
-		public string Title { get; set; } = null!;
-		public string Body { get; set; } = null!;
-	}
+    public class Mail
+    {
+        public IEnumerable<string> To { get; set; } = null!;
+        public string Title { get; set; } = null!;
+        public string Body { get; set; } = null!;
+        public bool IsSendable { get; set; } = true;
+    }
 }

BusinessLogic/Tools/Mail/MailSender.cs

@@ -8,39 +8,41 @@ using System.Threading.Tasks;
 
 namespace BusinessLogic.Tools.Mail
 {
-	public class MailSender
-	{
-		private static string _email;
-		private static string _password;
-		private static string _smtpClientHost;
-		private static short _smtpClientPort;
+    public class MailSender
+    {
+        private static string _email;
+        private static string _password;
+        private static string _smtpClientHost;
+        private static short _smtpClientPort;
 
-		public void SetupMailOptions(MailOptions options)
-		{
-			_email = options.Email;
-			_password = options.Password;
-			_smtpClientHost = options.SmtpClientHost;
-			_smtpClientPort = options.SmtpClientPort;
-		}
+        public void SetupMailOptions(MailOptions options)
+        {
+            _email = options.Email;
+            _password = options.Password;
+            _smtpClientHost = options.SmtpClientHost;
+            _smtpClientPort = options.SmtpClientPort;
+        }
 
-		public static void Send(Mail mail)
-		{
-			using SmtpClient client = new SmtpClient(_smtpClientHost, _smtpClientPort);
-			client.Credentials = new NetworkCredential(_email, _password);
-			client.EnableSsl = true;
+        public static void Send(Mail mail)
+        {
+            if (!mail.IsSendable) return;
 
-			using MailMessage message = new MailMessage();
+            using SmtpClient client = new SmtpClient(_smtpClientHost, _smtpClientPort);
+            client.Credentials = new NetworkCredential(_email, _password);
+            client.EnableSsl = true;
 
-			message.From = new MailAddress(_email);
-			foreach (string to in mail.To)
-			{
-				message.To.Add(to);
-			}
+            using MailMessage message = new MailMessage();
 
-			message.Subject = mail.Title;
-			message.Body = mail.Body;
+            message.From = new MailAddress(_email);
+            foreach (string to in mail.To)
+            {
+                message.To.Add(to);
+            }
 
-			client.Send(message);
-		}
-	}
+            message.Subject = mail.Title;
+            message.Body = mail.Body;
+
+            client.Send(message);
+        }
+    }
 }

BusinessLogic/Tools/Mail/MailTemplates/MailRegistration.cs

@@ -8,14 +8,18 @@ using System.Threading.Tasks;
 
 namespace BusinessLogic.Tools.Mail.MailTemplates
 {
-	public class MailRegistration : Mail
-	{
-		public MailRegistration(UserBindingModel user)
-		{
-			To = [user.Email];
-			Title = "Приветствуем Вас на нашем сайте!";
-			Body = $"Спасибо, {user.SecondName} {user.FirstName}, что выбрали НАС.\n" +
-				$"Надеемся, что Вам что-то уже приглянулось!";
-		}
-	}
+    public class MailRegistration : Mail
+    {
+        public MailRegistration(UserBindingModel user)
+        {
+            if (user.OnlyImportantMails)
+            {
+                IsSendable = false;
+            }
+            To = [user.Email];
+            Title = "Приветствуем Вас на нашем сайте!";
+            Body = $"Спасибо, {user.SecondName} {user.FirstName}, что выбрали НАС.\n" +
+                $"Надеемся, что Вам что-то уже приглянулось!";
+        }
+    }
 }

BusinessLogic/Tools/Mail/MailTemplates/MailTwoFactorCode.cs

@@ -0,0 +1,21 @@
+using Contracts.BindingModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace BusinessLogic.Tools.Mail.MailTemplates
+{
+    public class MailTwoFactorCode : Mail
+    {
+        public MailTwoFactorCode(UserBindingModel user, string code)
+        {
+            To = [user.Email];
+            Title = "Ваш код для подтверждения";
+            Body = $"Здравствуйте, {user.SecondName} {user.FirstName}! Вот Ваш код для подтверждения:\n" +
+                $"{code}\n" +
+                $"Если это не Вы, игноритруйте это сообщение.";
+        }
+    }
+}

BusinessLogic/Tools/TwoFactorAuthService.cs

@@ -0,0 +1,42 @@
+using Contracts.BusinessLogicContracts;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace BusinessLogic.Tools
+{
+    public class TwoFactorAuthService : ITwoFactorAuthService
+    {
+        private string _code = string.Empty;
+        private const int LENGTH_CODE = 5;
+
+        public string GenerateCode()
+        {
+            _code = _getCode(LENGTH_CODE);
+            return _code;
+        }
+
+        private string _getCode(int length)
+        {
+            string res = "";
+            var rand = new Random();
+            for (int i = 0; i < length; i++)
+            {
+                res += rand.Next(0, 9).ToString();
+            }
+            return res;
+        }
+
+        public bool Verify(string code)
+        {
+            if (_code == string.Empty)
+            {
+                throw new Exception("Source code is not generated.");
+            }
+
+            return _code == code;
+        }
+    }
+}

Contracts/BindingModels/UserBindingModel.cs

@@ -6,15 +6,16 @@ using System.Threading.Tasks;
 
 namespace Contracts.BindingModels
 {
-	public class UserBindingModel
-	{
-		public Guid Id { get; set; }
-		public string FirstName { get; set; } = string.Empty;
-		public string SecondName { get; set; } = string.Empty;
-		public string Email { get; set; } = string.Empty;
-		public string PasswordHash { get; set; } = string.Empty;
-		public string? Password { get; set; }
-		public DateTime Birthday { get; set; }
-		public RoleBindingModel Role { get; set; } = null!;
-	}
+    public class UserBindingModel
+    {
+        public Guid Id { get; set; }
+        public string FirstName { get; set; } = string.Empty;
+        public string SecondName { get; set; } = string.Empty;
+        public string Email { get; set; } = string.Empty;
+        public string PasswordHash { get; set; } = string.Empty;
+        public string? Password { get; set; }
+        public DateTime Birthday { get; set; }
+        public bool OnlyImportantMails { get; set; }
+        public RoleBindingModel Role { get; set; } = null!;
+    }
 }

Contracts/BusinessLogicContracts/ITwoFactorAuthService.cs

@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Contracts.BusinessLogicContracts
+{
+    public interface ITwoFactorAuthService
+    {
+        string GenerateCode();
+
+        bool Verify(string code);
+    }
+}

Contracts/BusinessLogicContracts/IUserLogic.cs

@@ -10,18 +10,20 @@ using System.Threading.Tasks;
 
 namespace Contracts.BusinessLogicContracts
 {
-	public interface IUserLogic
-	{
-		string Login(string email, string password);
+    public interface IUserLogic
+    {
+        string Login(string email, string password);
 
-		string Create(UserBindingModel model);
+        bool VerifyCode(string code);
 
-		UserViewModel Update(UserBindingModel model);
+        string Create(UserBindingModel model);
 
-		UserViewModel ReadElement(UserSearchModel model);
+        UserViewModel Update(UserBindingModel model);
 
-		IEnumerable<UserViewModel> ReadElements(UserSearchModel? model);
+        UserViewModel ReadElement(UserSearchModel model);
 
-		UserViewModel Delete(UserSearchModel model);
-	}
+        IEnumerable<UserViewModel> ReadElements(UserSearchModel? model);
+
+        UserViewModel Delete(UserSearchModel model);
+    }
 }

Contracts/Converters/UserConverter.cs

@@ -8,26 +8,28 @@ using System.Threading.Tasks;
 
 namespace Contracts.Converters
 {
-	public static class UserConverter
-	{
-		public static UserViewModel ToView(UserBindingModel model) => new()
-		{
-			Id = model.Id,
-			FirstName = model.FirstName,
-			SecondName = model.SecondName,
-			Email = model.Email,
-			Birthday = model.Birthday,
-			Role = RoleConverter.ToView(model.Role),
-		};
+    public static class UserConverter
+    {
+        public static UserViewModel ToView(UserBindingModel model) => new()
+        {
+            Id = model.Id,
+            FirstName = model.FirstName,
+            SecondName = model.SecondName,
+            Email = model.Email,
+            Birthday = model.Birthday,
+            OnlyImportantMails = model.OnlyImportantMails,
+            Role = RoleConverter.ToView(model.Role),
+        };
 
-		public static UserBindingModel ToBinding(UserViewModel model) => new()
-		{
-			Id = model.Id,
-			FirstName = model.FirstName,
-			SecondName = model.SecondName,
-			Email = model.Email,
-			Birthday = model.Birthday,
-			Role = RoleConverter.ToBinding(model.Role),
-		};
-	}
+        public static UserBindingModel ToBinding(UserViewModel model) => new()
+        {
+            Id = model.Id,
+            FirstName = model.FirstName,
+            SecondName = model.SecondName,
+            Email = model.Email,
+            Birthday = model.Birthday,
+            OnlyImportantMails = model.OnlyImportantMails,
+            Role = RoleConverter.ToBinding(model.Role),
+        };
+    }
 }

Contracts/SearchModels/UserSearchModel.cs

@@ -6,9 +6,10 @@ using System.Threading.Tasks;
 
 namespace Contracts.SearchModels
 {
-	public class UserSearchModel
-	{
-		public Guid? Id { get; set; }
-		public string? Email { get; set; }
-	}
+    public class UserSearchModel
+    {
+        public Guid? Id { get; set; }
+        public string? Email { get; set; }
+        public bool? OnlyImportantMails { get; set; }
+    }
 }

Contracts/ViewModels/UserViewModel.cs

@@ -6,13 +6,14 @@ using System.Threading.Tasks;
 
 namespace Contracts.ViewModels
 {
-	public class UserViewModel
-	{
-		public Guid Id { get; set; }
-		public string FirstName { get; set; } = string.Empty;
-		public string SecondName { get; set; } = string.Empty;
-		public string Email { get; set; } = string.Empty;
-		public DateTime Birthday { get; set; }
-		public RoleViewModel Role { get; set; } = null!;
-	}
+    public class UserViewModel
+    {
+        public Guid Id { get; set; }
+        public string FirstName { get; set; } = string.Empty;
+        public string SecondName { get; set; } = string.Empty;
+        public string Email { get; set; } = string.Empty;
+        public DateTime Birthday { get; set; }
+        public bool OnlyImportantMails { get; set; }
+        public RoleViewModel Role { get; set; } = null!;
+    }
 }

DataModels/Models/IUser.cs

@@ -6,12 +6,13 @@ using System.Threading.Tasks;
 
 namespace DataModels.Models
 {
-	public interface IUser : IId
-	{
-		string FirstName { get; }
-		string SecondName { get; }
-		string PasswordHash { get; }
-		string Email { get; }
-		DateTime Birthday { get; }
-	}
+    public interface IUser : IId
+    {
+        string FirstName { get; }
+        string SecondName { get; }
+        string PasswordHash { get; }
+        string Email { get; }
+        DateTime Birthday { get; }
+        bool OnlyImportantMails { get; }
+    }
 }

DatabaseImplement/Implements/RoleStorage.cs

@@ -32,7 +32,7 @@ namespace DatabaseImplement.Implements
 
         public RoleBindingModel? GetElement(RoleSearchModel model)
         {
-            if (model.Id is null && string.IsNullOrWhiteSpace(model.Name))
+            if (model.Id is null && string.IsNullOrWhiteSpace(model?.Name))
             {
                 return null;
             }
@@ -46,7 +46,7 @@ namespace DatabaseImplement.Implements
         public IEnumerable<RoleBindingModel> GetList(RoleSearchModel? model)
         {
             var context = new Database();
-            if (model is null && string.IsNullOrWhiteSpace(model.Name))
+            if (model is null && string.IsNullOrWhiteSpace(model?.Name))
             {
                 return context.Roles.Select(r => r.GetBindingModel());
             }

DatabaseImplement/Implements/UserStorage.cs

@@ -12,98 +12,99 @@ using System.Threading.Tasks;
 
 namespace DatabaseImplement.Implements
 {
-	public class UserStorage : IUserStorage
-	{
-		public UserBindingModel? Delete(UserSearchModel model)
-		{
-			if (model.Id is null && model.Email is null)
-			{
-				return null;
-			}
+    public class UserStorage : IUserStorage
+    {
+        public UserBindingModel? Delete(UserSearchModel model)
+        {
+            if (model.Id is null && model.Email is null)
+            {
+                return null;
+            }
 
-			var context = new Database();
-			var user = context.Users.FirstOrDefault(u =>
-				(model.Id.HasValue && u.Id == model.Id)
-				|| (!string.IsNullOrEmpty(u.Email) && u.Email.Contains(model.Email)));
+            var context = new Database();
+            var user = context.Users.FirstOrDefault(u =>
+                (model.Id.HasValue && u.Id == model.Id)
+                || (!string.IsNullOrEmpty(u.Email) && u.Email.Contains(model.Email)));
 
-			if (user is null)
-			{
-				return null;
-			}
-			context.Remove(user);
-			context.SaveChanges();
+            if (user is null)
+            {
+                return null;
+            }
+            context.Remove(user);
+            context.SaveChanges();
 
-			return user.GetBindingModel();
-		}
+            return user.GetBindingModel();
+        }
 
-		public UserBindingModel? GetElement(UserSearchModel model)
-		{
-			if (model.Id is null && model.Email is null)
-			{
-				return null;
-			}
-			var context = new Database();
-			return context.Users
-				.Include(u => u.Role)
-				.FirstOrDefault(u =>
-					(model.Id.HasValue && u.Id == model.Id)
-					|| (!string.IsNullOrEmpty(u.Email) && u.Email.Contains(model.Email)))
-				?.GetBindingModel();
-		}
+        public UserBindingModel? GetElement(UserSearchModel model)
+        {
+            if (model.Id is null && model.Email is null)
+            {
+                return null;
+            }
+            var context = new Database();
+            return context.Users
+                .Include(u => u.Role)
+                .FirstOrDefault(u =>
+                    (model.Id.HasValue && u.Id == model.Id)
+                    || (!string.IsNullOrEmpty(u.Email) && u.Email.Contains(model.Email)))
+                ?.GetBindingModel();
+        }
 
-		public IEnumerable<UserBindingModel> GetList(UserSearchModel? model)
-		{
-			var context = new Database();
-			if (model is null)
-			{
-				return context.Users
-					.Include(u => u.Role)
-					.Select(r => r.GetBindingModel());
-			}
-			if (model.Id is null && model.Email is null)
-			{
-				return [];
-			}
-			return context.Users
-				.Where(u =>
-					(model.Id.HasValue && u.Id == model.Id)
-					|| (!string.IsNullOrEmpty(u.Email) && u.Email.Contains(model.Email)))
-				.Include(u => u.Role)
-				.Select(r => r.GetBindingModel());
-		}
+        public IEnumerable<UserBindingModel> GetList(UserSearchModel? model)
+        {
+            var context = new Database();
+            if (model is null)
+            {
+                return context.Users
+                    .Include(u => u.Role)
+                    .Select(r => r.GetBindingModel());
+            }
+            if (model.Id is null && model.Email is null && !model.OnlyImportantMails is null)
+            {
+                return [];
+            }
+            return context.Users
+                .Where(u =>
+                    (model.Id.HasValue && u.Id == model.Id)
+                    || (!string.IsNullOrEmpty(u.Email) && u.Email.Contains(model.Email))
+                    || (model.OnlyImportantMails.HasValue && u.OnlyImportantMails == model.OnlyImportantMails))
+                .Include(u => u.Role)
+                .Select(r => r.GetBindingModel());
+        }
 
-		public UserBindingModel? Insert(UserBindingModel model)
-		{
-			var context = new Database();
-			var role = context.Roles.FirstOrDefault(r => r.Id == model.Role.Id);
-			if (role is null)
-			{
-				return null;
-			}
-			var newUser = Models.User.ToUserFromBinding(model, role);
+        public UserBindingModel? Insert(UserBindingModel model)
+        {
+            var context = new Database();
+            var role = context.Roles.FirstOrDefault(r => r.Id == model.Role.Id);
+            if (role is null)
+            {
+                return null;
+            }
+            var newUser = Models.User.ToUserFromBinding(model, role);
 
-			context.Users.Add(newUser);
-			context.SaveChanges();
+            context.Users.Add(newUser);
+            context.SaveChanges();
 
-			return newUser.GetBindingModel();
-		}
+            return newUser.GetBindingModel();
+        }
 
-		public UserBindingModel? Update(UserBindingModel model)
-		{
-			var context = new Database();
-			var user = context.Users
-				.FirstOrDefault(u => u.Id == model.Id);
-			var role = context.Roles.FirstOrDefault(r => r.Id == model.Role.Id);
+        public UserBindingModel? Update(UserBindingModel model)
+        {
+            var context = new Database();
+            var user = context.Users
+                .FirstOrDefault(u => u.Id == model.Id);
+            var role = context.Roles.FirstOrDefault(r => r.Id == model.Role.Id);
 
-			if (user is null || role is null)
-			{
-				return null;
-			}
+            if (user is null || role is null)
+            {
+                return null;
+            }
 
-			user.Update(model, role);
+            user.Update(model, role);
 
-			context.SaveChanges();
-			return user.GetBindingModel();
-		}
-	}
+            context.SaveChanges();
+            return user.GetBindingModel();
+        }
+    }
 }

DatabaseImplement/Migrations/20240622162300_second.Designer.cs

@@ -0,0 +1,326 @@
+// <auto-generated />
+using System;
+using DatabaseImplement;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace DatabaseImplement.Migrations
+{
+    [DbContext(typeof(Database))]
+    [Migration("20240622162300_second")]
+    partial class second
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "8.0.6")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("DatabaseImplement.Models.MediaFile", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("Location")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<Guid>("ProductId")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("MediaFiles");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.Product", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<int>("Amount")
+                        .HasColumnType("integer");
+
+                    b.Property<bool>("IsBeingSold")
+                        .HasColumnType("boolean");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<double>("Price")
+                        .HasColumnType("double precision");
+
+                    b.Property<double>("Rate")
+                        .HasColumnType("double precision");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Products");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.Purchase", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<DateTime>("DatePurchase")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Purchases");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.Role", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Roles");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.Sell", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<DateTime>("DateSell")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Sells");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.Supplier", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<int>("Deals")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Suppliers");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.SupplierProduct", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<Guid>("ProductId")
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid>("SupplierId")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ProductId");
+
+                    b.HasIndex("SupplierId");
+
+                    b.ToTable("SupplierProducts");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.Supply", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<DateTime>("Date")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<double>("Price")
+                        .HasColumnType("double precision");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("integer");
+
+                    b.Property<Guid>("SupplierId")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("SupplierId");
+
+                    b.ToTable("Supplies");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.SupplyProduct", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<Guid>("ProductId")
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid>("SupplyId")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ProductId");
+
+                    b.HasIndex("SupplyId");
+
+                    b.ToTable("SupplyProducts");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.User", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<DateTime>("Birthday")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("Email")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("FirstName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<bool>("OnlyImportantMails")
+                        .HasColumnType("boolean");
+
+                    b.Property<string>("PasswordHash")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<Guid?>("RoleId")
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("SecondName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("RoleId");
+
+                    b.ToTable("Users");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.SupplierProduct", b =>
+                {
+                    b.HasOne("DatabaseImplement.Models.Product", "Product")
+                        .WithMany()
+                        .HasForeignKey("ProductId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("DatabaseImplement.Models.Supplier", "Supplier")
+                        .WithMany("Products")
+                        .HasForeignKey("SupplierId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Product");
+
+                    b.Navigation("Supplier");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.Supply", b =>
+                {
+                    b.HasOne("DatabaseImplement.Models.Supplier", "Supplier")
+                        .WithMany()
+                        .HasForeignKey("SupplierId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Supplier");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.SupplyProduct", b =>
+                {
+                    b.HasOne("DatabaseImplement.Models.Product", "Product")
+                        .WithMany()
+                        .HasForeignKey("ProductId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("DatabaseImplement.Models.Supply", "Supply")
+                        .WithMany("Products")
+                        .HasForeignKey("SupplyId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Product");
+
+                    b.Navigation("Supply");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.User", b =>
+                {
+                    b.HasOne("DatabaseImplement.Models.Role", "Role")
+                        .WithMany()
+                        .HasForeignKey("RoleId");
+
+                    b.Navigation("Role");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.Supplier", b =>
+                {
+                    b.Navigation("Products");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.Supply", b =>
+                {
+                    b.Navigation("Products");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

DatabaseImplement/Migrations/20240622162300_second.cs

@@ -0,0 +1,221 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace DatabaseImplement.Migrations
+{
+    /// <inheritdoc />
+    public partial class second : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AddColumn<bool>(
+                name: "OnlyImportantMails",
+                table: "Users",
+                type: "boolean",
+                nullable: false,
+                defaultValue: false);
+
+            migrationBuilder.CreateTable(
+                name: "MediaFiles",
+                columns: table => new
+                {
+                    Id = table.Column<Guid>(type: "uuid", nullable: false),
+                    Name = table.Column<string>(type: "text", nullable: false),
+                    Location = table.Column<string>(type: "text", nullable: false),
+                    ProductId = table.Column<Guid>(type: "uuid", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_MediaFiles", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Products",
+                columns: table => new
+                {
+                    Id = table.Column<Guid>(type: "uuid", nullable: false),
+                    Name = table.Column<string>(type: "text", nullable: false),
+                    Price = table.Column<double>(type: "double precision", nullable: false),
+                    Rate = table.Column<double>(type: "double precision", nullable: false),
+                    IsBeingSold = table.Column<bool>(type: "boolean", nullable: false),
+                    Amount = table.Column<int>(type: "integer", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Products", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Purchases",
+                columns: table => new
+                {
+                    Id = table.Column<Guid>(type: "uuid", nullable: false),
+                    DatePurchase = table.Column<DateTime>(type: "timestamp with time zone", nullable: false),
+                    Status = table.Column<int>(type: "integer", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Purchases", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Sells",
+                columns: table => new
+                {
+                    Id = table.Column<Guid>(type: "uuid", nullable: false),
+                    DateSell = table.Column<DateTime>(type: "timestamp with time zone", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Sells", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Suppliers",
+                columns: table => new
+                {
+                    Id = table.Column<Guid>(type: "uuid", nullable: false),
+                    Name = table.Column<string>(type: "text", nullable: false),
+                    Deals = table.Column<int>(type: "integer", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Suppliers", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "SupplierProducts",
+                columns: table => new
+                {
+                    Id = table.Column<Guid>(type: "uuid", nullable: false),
+                    SupplierId = table.Column<Guid>(type: "uuid", nullable: false),
+                    ProductId = table.Column<Guid>(type: "uuid", nullable: false),
+                    Count = table.Column<int>(type: "integer", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_SupplierProducts", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_SupplierProducts_Products_ProductId",
+                        column: x => x.ProductId,
+                        principalTable: "Products",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_SupplierProducts_Suppliers_SupplierId",
+                        column: x => x.SupplierId,
+                        principalTable: "Suppliers",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Supplies",
+                columns: table => new
+                {
+                    Id = table.Column<Guid>(type: "uuid", nullable: false),
+                    Name = table.Column<string>(type: "text", nullable: false),
+                    Price = table.Column<double>(type: "double precision", nullable: false),
+                    SupplierId = table.Column<Guid>(type: "uuid", nullable: false),
+                    Date = table.Column<DateTime>(type: "timestamp with time zone", nullable: false),
+                    Status = table.Column<int>(type: "integer", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Supplies", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_Supplies_Suppliers_SupplierId",
+                        column: x => x.SupplierId,
+                        principalTable: "Suppliers",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "SupplyProducts",
+                columns: table => new
+                {
+                    Id = table.Column<Guid>(type: "uuid", nullable: false),
+                    SupplyId = table.Column<Guid>(type: "uuid", nullable: false),
+                    ProductId = table.Column<Guid>(type: "uuid", nullable: false),
+                    Count = table.Column<int>(type: "integer", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_SupplyProducts", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_SupplyProducts_Products_ProductId",
+                        column: x => x.ProductId,
+                        principalTable: "Products",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_SupplyProducts_Supplies_SupplyId",
+                        column: x => x.SupplyId,
+                        principalTable: "Supplies",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_SupplierProducts_ProductId",
+                table: "SupplierProducts",
+                column: "ProductId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_SupplierProducts_SupplierId",
+                table: "SupplierProducts",
+                column: "SupplierId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Supplies_SupplierId",
+                table: "Supplies",
+                column: "SupplierId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_SupplyProducts_ProductId",
+                table: "SupplyProducts",
+                column: "ProductId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_SupplyProducts_SupplyId",
+                table: "SupplyProducts",
+                column: "SupplyId");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "MediaFiles");
+
+            migrationBuilder.DropTable(
+                name: "Purchases");
+
+            migrationBuilder.DropTable(
+                name: "Sells");
+
+            migrationBuilder.DropTable(
+                name: "SupplierProducts");
+
+            migrationBuilder.DropTable(
+                name: "SupplyProducts");
+
+            migrationBuilder.DropTable(
+                name: "Products");
+
+            migrationBuilder.DropTable(
+                name: "Supplies");
+
+            migrationBuilder.DropTable(
+                name: "Suppliers");
+
+            migrationBuilder.DropColumn(
+                name: "OnlyImportantMails",
+                table: "Users");
+        }
+    }
+}

DatabaseImplement/Migrations/DatabaseModelSnapshot.cs

@@ -22,6 +22,72 @@ namespace DatabaseImplement.Migrations
 
             NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
 
+            modelBuilder.Entity("DatabaseImplement.Models.MediaFile", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("Location")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<Guid>("ProductId")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("MediaFiles");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.Product", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<int>("Amount")
+                        .HasColumnType("integer");
+
+                    b.Property<bool>("IsBeingSold")
+                        .HasColumnType("boolean");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<double>("Price")
+                        .HasColumnType("double precision");
+
+                    b.Property<double>("Rate")
+                        .HasColumnType("double precision");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Products");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.Purchase", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<DateTime>("DatePurchase")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Purchases");
+                });
+
             modelBuilder.Entity("DatabaseImplement.Models.Role", b =>
                 {
                     b.Property<Guid>("Id")
@@ -37,6 +103,115 @@ namespace DatabaseImplement.Migrations
                     b.ToTable("Roles");
                 });
 
+            modelBuilder.Entity("DatabaseImplement.Models.Sell", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<DateTime>("DateSell")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Sells");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.Supplier", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<int>("Deals")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Suppliers");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.SupplierProduct", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<Guid>("ProductId")
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid>("SupplierId")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ProductId");
+
+                    b.HasIndex("SupplierId");
+
+                    b.ToTable("SupplierProducts");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.Supply", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<DateTime>("Date")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<double>("Price")
+                        .HasColumnType("double precision");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("integer");
+
+                    b.Property<Guid>("SupplierId")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("SupplierId");
+
+                    b.ToTable("Supplies");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.SupplyProduct", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<Guid>("ProductId")
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid>("SupplyId")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ProductId");
+
+                    b.HasIndex("SupplyId");
+
+                    b.ToTable("SupplyProducts");
+                });
+
             modelBuilder.Entity("DatabaseImplement.Models.User", b =>
                 {
                     b.Property<Guid>("Id")
@@ -54,6 +229,9 @@ namespace DatabaseImplement.Migrations
                         .IsRequired()
                         .HasColumnType("text");
 
+                    b.Property<bool>("OnlyImportantMails")
+                        .HasColumnType("boolean");
+
                     b.Property<string>("PasswordHash")
                         .IsRequired()
                         .HasColumnType("text");
@@ -72,6 +250,55 @@ namespace DatabaseImplement.Migrations
                     b.ToTable("Users");
                 });
 
+            modelBuilder.Entity("DatabaseImplement.Models.SupplierProduct", b =>
+                {
+                    b.HasOne("DatabaseImplement.Models.Product", "Product")
+                        .WithMany()
+                        .HasForeignKey("ProductId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("DatabaseImplement.Models.Supplier", "Supplier")
+                        .WithMany("Products")
+                        .HasForeignKey("SupplierId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Product");
+
+                    b.Navigation("Supplier");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.Supply", b =>
+                {
+                    b.HasOne("DatabaseImplement.Models.Supplier", "Supplier")
+                        .WithMany()
+                        .HasForeignKey("SupplierId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Supplier");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.SupplyProduct", b =>
+                {
+                    b.HasOne("DatabaseImplement.Models.Product", "Product")
+                        .WithMany()
+                        .HasForeignKey("ProductId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("DatabaseImplement.Models.Supply", "Supply")
+                        .WithMany("Products")
+                        .HasForeignKey("SupplyId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Product");
+
+                    b.Navigation("Supply");
+                });
+
             modelBuilder.Entity("DatabaseImplement.Models.User", b =>
                 {
                     b.HasOne("DatabaseImplement.Models.Role", "Role")
@@ -80,6 +307,16 @@ namespace DatabaseImplement.Migrations
 
                     b.Navigation("Role");
                 });
+
+            modelBuilder.Entity("DatabaseImplement.Models.Supplier", b =>
+                {
+                    b.Navigation("Products");
+                });
+
+            modelBuilder.Entity("DatabaseImplement.Models.Supply", b =>
+                {
+                    b.Navigation("Products");
+                });
 #pragma warning restore 612, 618
         }
     }

DatabaseImplement/Models/User.cs

@@ -4,6 +4,7 @@ using Contracts.ViewModels;
 using DataModels.Models;
 using System;
 using System.Collections.Generic;
+using System.ComponentModel;
 using System.ComponentModel.DataAnnotations;
 using System.Linq;
 using System.Text;
@@ -11,72 +12,77 @@ using System.Threading.Tasks;
 
 namespace DatabaseImplement.Models
 {
-	public class User : IUser
-	{
-		public Guid Id { get; set; }
+    public class User : IUser
+    {
+        public Guid Id { get; set; }
 
-		[Required]
-		public string FirstName { get; set; } = string.Empty;
+        [Required]
+        public string FirstName { get; set; } = string.Empty;
 
-		[Required]
-		public string SecondName { get; set; } = string.Empty;
+        [Required]
+        public string SecondName { get; set; } = string.Empty;
 
-		[Required]
-		public string PasswordHash { get; set; } = string.Empty;
+        [Required]
+        public string PasswordHash { get; set; } = string.Empty;
 
-		[Required]
-		public string Email { get; set; } = string.Empty;
+        [Required]
+        public string Email { get; set; } = string.Empty;
 
-		[Required]
-		public DateTime Birthday { get; set; }
+        [Required]
+        public DateTime Birthday { get; set; }
 
-		public Role? Role { get; set; }
+        public Role? Role { get; set; }
 
-		public UserBindingModel GetBindingModel() => new()
-		{
-			Id = Id,
-			FirstName = FirstName,
-			SecondName = SecondName,
-			Email = Email,
-			PasswordHash = PasswordHash,
-			Birthday = Birthday,
-			Role = Role?.GetBindingModel() ?? new()
-		};
+        public bool OnlyImportantMails { get; set; } = false;
 
-		public static User ToUserFromView(UserViewModel model, Role role) => new()
-		{
-			Id = model.Id,
-			FirstName = model.FirstName,
-			SecondName = model.SecondName,
-			Email = model.Email,
-			Birthday = model.Birthday,
-			Role = role
-		};
+        public UserBindingModel GetBindingModel() => new()
+        {
+            Id = Id,
+            FirstName = FirstName,
+            SecondName = SecondName,
+            Email = Email,
+            PasswordHash = PasswordHash,
+            Birthday = Birthday,
+            OnlyImportantMails = OnlyImportantMails,
+            Role = Role?.GetBindingModel() ?? new()
+        };
 
-		public static User ToUserFromBinding(UserBindingModel model, Role role) => new()
-		{
-			Id = model.Id,
-			FirstName = model.FirstName,
-			SecondName = model.SecondName,
-			Email = model.Email,
-			PasswordHash = model.PasswordHash,
-			Birthday = model.Birthday,
-			Role = role
-		};
+        public static User ToUserFromView(UserViewModel model, Role role) => new()
+        {
+            Id = model.Id,
+            FirstName = model.FirstName,
+            SecondName = model.SecondName,
+            Email = model.Email,
+            Birthday = model.Birthday,
+            Role = role
+        };
 
-		public void Update(UserBindingModel model, Role role)
-		{
-			if (model is null)
-			{
-				throw new ArgumentNullException("Update user: binding model is null");
-			}
+        public static User ToUserFromBinding(UserBindingModel model, Role role) => new()
+        {
+            Id = model.Id,
+            FirstName = model.FirstName,
+            SecondName = model.SecondName,
+            Email = model.Email,
+            PasswordHash = model.PasswordHash,
+            Birthday = model.Birthday,
+            OnlyImportantMails = model.OnlyImportantMails,
+            Role = role
+        };
 
-			Email = model.Email;
-			FirstName = model.FirstName;
-			SecondName = model.SecondName;
-			PasswordHash = model.PasswordHash;
-			Birthday = model.Birthday;
-			Role = role;
-		}
-	}
+        public void Update(UserBindingModel model, Role role)
+        {
+            if (model is null)
+            {
+                throw new ArgumentNullException("Update user: binding model is null");
+            }
+
+            Email = model.Email ?? Email;
+            FirstName = model.FirstName ?? FirstName;
+            SecondName = model.SecondName ?? SecondName;
+            PasswordHash = model.PasswordHash ?? PasswordHash;
+            Birthday = model.Birthday;
+            OnlyImportantMails = model.OnlyImportantMails;
+            Role = role ?? Role;
+        }
+    }
 }

RestAPI/Controllers/UserController.cs

@@ -46,6 +46,21 @@ namespace RestAPI.Controllers
             }
         }
 
+        [HttpPost]
+        public IResult VerifyCode([FromBody] VerifyCodeData data)
+        {
+            try
+            {
+                var res = _userLogic.VerifyCode(data.code);
+                return Results.Ok(res);
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Error verify code");
+                return Results.Problem(ex.Message);
+            }
+        }
+
         [HttpPost]
         public IResult Registration([FromBody] UserBindingModel model)
         {
@@ -128,4 +143,5 @@ namespace RestAPI.Controllers
     }
 
     public record class UserData(string email, string password);
+    public record class VerifyCodeData(string code);
 }

RestAPI/Program.cs

@@ -20,6 +20,7 @@ builder.Logging.AddLog4Net("log4net.config");
 
 builder.Services.AddTransient<IRoleLogic, RoleLogic>();
 builder.Services.AddTransient<IUserLogic, UserLogic>();
+builder.Services.AddSingleton<ITwoFactorAuthService, TwoFactorAuthService>();
 
 builder.Services.AddTransient<IRoleStorage, RoleStorage>();
 builder.Services.AddTransient<IUserStorage, UserStorage>();
@@ -34,7 +35,7 @@ builder.Services.AddControllers();
 builder.Services.AddEndpointsApiExplorer();
 builder.Services.AddSwaggerGen(c =>
 {
-	c.SwaggerDoc(VERSION, new OpenApiInfo { Title = TITLE, Version = VERSION });
+    c.SwaggerDoc(VERSION, new OpenApiInfo { Title = TITLE, Version = VERSION });
 });
 
 var app = builder.Build();
@@ -46,15 +47,15 @@ var mailSender = app.Services.GetService<MailSender>();
 string? getSection(string section) => builder.Configuration?.GetSection(section)?.Value?.ToString();
 jwtProvider?.SetupJwtOptions(new()
 {
-	SecretKey = getSection("JwtOptions:SecretKey") ?? string.Empty,
-	ExpiresHours = Convert.ToInt16(getSection("JwtOptions:ExpiresHours"))
+    SecretKey = getSection("JwtOptions:SecretKey") ?? string.Empty,
+    ExpiresHours = Convert.ToInt16(getSection("JwtOptions:ExpiresHours"))
 });
 mailSender?.SetupMailOptions(new()
 {
-	Email = getSection("MailOptions:Email") ?? string.Empty,
-	Password = getSection("MailOptions:Password") ?? string.Empty,
-	SmtpClientHost = getSection("MailOptions:SmtpClientHost") ?? string.Empty,
-	SmtpClientPort = Convert.ToInt16(getSection("MailOptions:SmtpClientPort"))
+    Email = getSection("MailOptions:Email") ?? string.Empty,
+    Password = getSection("MailOptions:Password") ?? string.Empty,
+    SmtpClientHost = getSection("MailOptions:SmtpClientHost") ?? string.Empty,
+    SmtpClientPort = Convert.ToInt16(getSection("MailOptions:SmtpClientPort"))
 });
 
 #endregion Setup config
@@ -62,8 +63,8 @@ mailSender?.SetupMailOptions(new()
 // Configure the HTTP request pipeline.
 if (app.Environment.IsDevelopment())
 {
-	app.UseSwagger();
-	app.UseSwaggerUI(c => c.SwaggerEndpoint($"/swagger/{VERSION}/swagger.json", $"{TITLE} {VERSION}"));
+    app.UseSwagger();
+    app.UseSwaggerUI(c => c.SwaggerEndpoint($"/swagger/{VERSION}/swagger.json", $"{TITLE} {VERSION}"));
 }
 
 app.UseHttpsRedirection();

WebApp/Pages/Login.cshtml.cs

@@ -20,9 +20,9 @@ namespace WebApp.Pages
                 throw new Exception("Something wrong LOL!");
             }
 
-            this.SetJWT((string)response);
+            TempData["jwt"] = (string)response;
 
-            return RedirectToPage("Index");
+            return RedirectToPage("TwoFactor");
         }
     }
 }

WebApp/Pages/SignUp.cshtml

@@ -74,6 +74,13 @@
                                 </label>
                             </div>
 
+                            <div class="form-check d-flex justify-content-center mb-4">
+                                <input asp-for="UserModel.OnlyImportantMails" class="form-check-input me-2" type="checkbox" id="policy" />
+                                <label class="form-check-label" for="policy">
+                                    Send only important mails
+                                </label>
+                            </div>
+
                             <!-- Submit button -->
                             <button type="submit" data-mdb-button-init data-mdb-ripple-init class="btn btn-primary btn-block mb-4">
                                 Sign up

WebApp/Pages/SignUp.cshtml.cs

@@ -30,9 +30,9 @@ namespace WebApp.Pages
                 throw new Exception("Something wrong LOL!");
             }
 
-            this.SetJWT((string)response);
+            TempData["jwt"] = (string)response;
 
-            return RedirectToPage("Index");
+            return RedirectToPage("TwoFactor");
         }
     }
 }

WebApp/Pages/TwoFactor.cshtml

@@ -0,0 +1,128 @@
+@page
+@model WebApp.Pages.TwoFactorModel
+
+<div class="row justify-content-center mt-7">
+    <style>
+        .icon-circle[class*=text-] [fill]:not([fill=none]), .icon-circle[class*=text-] svg:not([fill=none]), .svg-icon[class*=text-] [fill]:not([fill=none]), .svg-icon[class*=text-] svg:not([fill=none]) {
+            fill: currentColor !important;
+        }
+
+        .svg-icon-xl > svg {
+            width: 3.25rem;
+            height: 3.25rem;
+        }
+
+        .hover-lift-light {
+            transition: box-shadow .25s ease,transform .25s ease,color .25s ease,background-color .15s ease-in;
+        }
+
+        .mt-4 {
+            margin-top: 1.5rem !important;
+        }
+
+        .w-100 {
+            width: 100% !important;
+        }
+
+        .btn-group-lg > .btn, .btn-lg {
+            padding: 0.8rem 1.85rem;
+            font-size: 1.1rem;
+            border-radius: 0.3rem;
+        }
+
+        .btn-purple {
+            color: #fff;
+            background-color: #6672e8;
+            border-color: #6672e8;
+        }
+
+        .text-center {
+            text-align: center !important;
+        }
+
+        .py-4 {
+            padding-top: 1.5rem !important;
+            padding-bottom: 1.5rem !important;
+        }
+
+        .form-control-lg {
+            min-height: calc(1.5em + 1rem + 2px);
+            padding: 0.5rem 1rem;
+            font-size: 1.25rem;
+            border-radius: 0.3rem;
+        }
+
+        .form-control {
+            display: block;
+            width: 100%;
+            padding: 0.375rem 0.75rem;
+            font-size: 1rem;
+            font-weight: 400;
+            line-height: 1.5;
+            color: #1e2e50;
+            background-color: #f6f9fc;
+            background-clip: padding-box;
+            border: 1px solid #dee2e6;
+            -webkit-appearance: none;
+            -moz-appearance: none;
+            appearance: none;
+            border-radius: 0.25rem;
+            transition: border-color .15s ease-in-out,box-shadow .15s ease-in-out;
+        }
+    </style>
+    <div class="col-lg-5 text-center">
+        <a href="index.html">
+            <img src="assets/img/svg/logo.svg" alt="">
+        </a>
+        <div class="card mt-5">
+            <div class="card-body py-5 px-lg-5">
+                <div class="svg-icon svg-icon-xl text-purple">
+                    <svg xmlns="http://www.w3.org/2000/svg" width="512" height="512" viewBox="0 0 512 512"><title>ionicons-v5-g</title><path d="M336,208V113a80,80,0,0,0-160,0v95" style="fill:none;stroke:#000;stroke-linecap:round;stroke-linejoin:round;stroke-width:32px"></path><rect x="96" y="208" width="320" height="272" rx="48" ry="48" style="fill:none;stroke:#000;stroke-linecap:round;stroke-linejoin:round;stroke-width:32px"></rect></svg>
+                </div>
+                <h3 class="fw-normal text-dark mt-4">
+                    2-step verification
+                </h3>
+                <p class="mt-4 mb-1">
+                    We sent a verification code to your email.
+                </p>
+                <p>
+                    Please enter the code in the field below.
+                </p>
+                <form method="post">
+                    <div class="row mt-4 pt-2">
+                        <div class="col">
+                            <input type="text" maxlength="1" class="form-control form-control-lg text-center py-4" 
+                                name="code" required autofocus>
+                        </div>
+                        <div class="col">
+                            <input type="text" maxlength="1" class="form-control form-control-lg text-center py-4" 
+                                name="code" required>
+                        </div>
+                        <div class="col">
+                            <input type="text" maxlength="1" class="form-control form-control-lg text-center py-4" 
+                                name="code" required>
+                        </div>
+                        <div class="col">
+                            <input type="text" maxlength="1" class="form-control form-control-lg text-center py-4" 
+                                name="code" required>
+                        </div>
+                        <div class="col">
+                            <input type="text" maxlength="1" class="form-control form-control-lg text-center py-4" 
+                                name="code" required>
+                        </div>
+                    </div>
+                    <button type="submit" class="btn btn-purple btn-lg w-100 hover-lift-light mt-4">
+                        Verify my account
+                    </button>
+                </form>
+            </div>
+        </div>
+
+        <p class="text-center text-muted mt-4">
+            Didn't receive it?
+            <a href="#!" class="text-decoration-none ms-2">
+                Resend code
+            </a>
+        </p>
+    </div>
+</div>

WebApp/Pages/TwoFactor.cshtml.cs

@@ -0,0 +1,35 @@
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Mvc.RazorPages;
+
+namespace WebApp.Pages
+{
+    public class TwoFactorModel : PageModel
+    {
+        [BindProperty]
+        public int[] Code { get; set; } = [];
+
+        public void OnGet()
+        {
+        }
+
+        public IActionResult OnPost(string[] code)
+        {
+            var stringCode = string.Join(string.Empty, Code);
+            if (string.IsNullOrEmpty(stringCode))
+            {
+                throw new Exception("Looo");
+            }
+            var response = (string)APIClient.PostRequest("user/verifycode", new { code = stringCode });
+            var isCorrect = Convert.ToBoolean(response);
+            if (isCorrect)
+            {
+                this.SetJWT((string)TempData["jwt"]);
+                return RedirectToPage("Index");
+            }
+            else
+            {
+                throw new Exception("Wrong code! Please retry");
+            }
+        }
+    }
+}

WebApp/Pages/User/Settings.cshtml

@@ -37,6 +37,12 @@
                 <input asp-for="UserModel.Birthday" type="date" id="birthday" class="form-control" />
                 <label class="form-label" for="birthday">Birthday</label>
             </div>
+            
+            <!-- Sending Policy input -->
+            <div class="form-outline mb-4">
+                <input asp-for="UserModel.OnlyImportantMails" type="checkbox" id="policy" />
+                <label class="form-label" for="policy">Send only important mails</label>
+            </div>
 
             <!-- Hidden inputs -->
             <input type="hidden" asp-for="UserModel.Id" />