add api

Presence.Api/Controllers/GroupController.cs

@@ -0,0 +1,36 @@
+using domain.Service;
+using domain.UseCase;
+using Microsoft.AspNetCore.Mvc;
+using Presence.Api.Response;
+
+namespace Presence.Api.Controllers
+{
+    [ApiController]
+    [Route("api/[contrtoller]")]
+    public class GroupController: ControllerBase
+    {
+        private readonly IGroupUseCase _groupService;
+
+        public GroupController(IGroupUseCase groupService) { 
+            _groupService = groupService;
+        }
+
+        [HttpGet("/group")]
+        public ActionResult<GroupResponse> GetAllGroups() {
+
+            var result = _groupService
+                .GetGroupsWithStudents()
+                .Select(group => new GroupResponse { 
+                    Id = group.Id, 
+                    Name = group.Name,
+                    Users = group.Users?.Select(
+                        user => new UserResponse { 
+                            Guid = user.Guid,
+                            Name =  user.Name, 
+                        }).Take(10).ToList()
+                }).ToList();
+            return Ok(result);
+
+        }
+    }
+}

Presence.Api/Controllers/WeatherForecastController.cs

@@ -0,0 +1,33 @@
+using Microsoft.AspNetCore.Mvc;
+
+namespace Presence.Api.Controllers
+{
+    [ApiController]
+    [Route("[controller]")]
+    public class WeatherForecastController : ControllerBase
+    {
+        private static readonly string[] Summaries = new[]
+        {
+            "Freezing", "Bracing", "Chilly", "Cool", "Mild", "Warm", "Balmy", "Hot", "Sweltering", "Scorching"
+        };
+
+        private readonly ILogger<WeatherForecastController> _logger;
+
+        public WeatherForecastController(ILogger<WeatherForecastController> logger)
+        {
+            _logger = logger;
+        }
+
+        [HttpGet(Name = "GetWeatherForecast")]
+        public IEnumerable<WeatherForecast> Get()
+        {
+            return Enumerable.Range(1, 5).Select(index => new WeatherForecast
+            {
+                Date = DateOnly.FromDateTime(DateTime.Now.AddDays(index)),
+                TemperatureC = Random.Shared.Next(-20, 55),
+                Summary = Summaries[Random.Shared.Next(Summaries.Length)]
+            })
+            .ToArray();
+        }
+    }
+}

Presence.Api/Extensions/ServiceCollectionsExtension.cs

@@ -0,0 +1,22 @@
+using data;
+using data.Repository;
+using domain.Service;
+using domain.UseCase;
+using Presence.Api.Controllers;
+
+namespace Presence.Api.Extensions
+{
+    public static class ServiceCollectionsExtension
+    {
+        public static void AddCommonServices(this IServiceCollection services) {
+
+            services
+                .AddDbContext<RemoteDatabaseContext>()
+                .AddScoped<IGroupRepository, SQLGroupRepository>()
+                .AddScoped<IGroupUseCase, GroupService>()
+                .AddScoped<GroupController>();
+
+        
+        }
+    }
+}

Presence.Api/Presence.Api.csproj

@@ -0,0 +1,21 @@
+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Swashbuckle.AspNetCore" Version="6.4.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\domain\domain.csproj" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <Folder Include="Request\" />
+  </ItemGroup>
+
+</Project>

Presence.Api/Presence.Api.http

@@ -0,0 +1,6 @@
+@Presence.Api_HostAddress = http://localhost:5137
+
+GET {{Presence.Api_HostAddress}}/weatherforecast/
+Accept: application/json
+
+###

Presence.Api/Program.cs

@@ -0,0 +1,28 @@
+using Presence.Api.Extensions;
+
+var builder = WebApplication.CreateBuilder(args);
+
+// Add services to the container.
+builder.Services.AddCommonServices();
+builder.Services.AddControllers();
+// Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
+builder.Services.AddEndpointsApiExplorer();
+builder.Services.AddSwaggerGen();
+
+
+var app = builder.Build();
+
+// Configure the HTTP request pipeline.
+if (app.Environment.IsDevelopment())
+{
+    app.UseSwagger();
+    app.UseSwaggerUI();
+}
+
+app.UseHttpsRedirection();
+
+app.UseAuthorization();
+
+app.MapControllers();
+
+app.Run();

Presence.Api/Properties/launchSettings.json

@@ -0,0 +1,41 @@
+{
+  "$schema": "http://json.schemastore.org/launchsettings.json",
+  "iisSettings": {
+    "windowsAuthentication": false,
+    "anonymousAuthentication": true,
+    "iisExpress": {
+      "applicationUrl": "http://localhost:59027",
+      "sslPort": 44338
+    }
+  },
+  "profiles": {
+    "http": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": true,
+      "launchUrl": "swagger",
+      "applicationUrl": "http://localhost:5137",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "https": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": true,
+      "launchUrl": "swagger",
+      "applicationUrl": "https://localhost:7100;http://localhost:5137",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "IIS Express": {
+      "commandName": "IISExpress",
+      "launchBrowser": true,
+      "launchUrl": "swagger",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    }
+  }
+}

Presence.Api/Response/GroupResponse.cs

@@ -0,0 +1,10 @@
+namespace Presence.Api.Response
+{
+    public class GroupResponse
+    {
+        public int Id { get; set; }
+        public string Name { get; set; }
+        public IEnumerable<UserResponse>? Users { get; set; } = null; 
+
+    }
+}

Presence.Api/Response/UserResponse.cs

@@ -0,0 +1,9 @@
+namespace Presence.Api.Response
+{
+    public class UserResponse
+    {
+        public Guid Guid { get; set; }
+        public string Name { get; set; }
+    }
+}
+ 

Presence.Api/WeatherForecast.cs

@@ -0,0 +1,13 @@
+namespace Presence.Api
+{
+    public class WeatherForecast
+    {
+        public DateOnly Date { get; set; }
+
+        public int TemperatureC { get; set; }
+
+        public int TemperatureF => 32 + (int)(TemperatureC / 0.5556);
+
+        public string? Summary { get; set; }
+    }
+}

Presence.Api/appsettings.Development.json

@@ -0,0 +1,8 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  }
+}

Presence.Api/appsettings.json

@@ -0,0 +1,9 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  },
+  "AllowedHosts": "*"
+}

Presence.Desktop/App.axaml

@@ -0,0 +1,15 @@
+<Application xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             x:Class="Presence.Desktop.App"
+             xmlns:local="using:Presence.Desktop"
+             RequestedThemeVariant="Default">
+             <!-- "Default" ThemeVariant follows system theme variant. "Dark" or "Light" are other available options. -->
+
+    <Application.DataTemplates>
+        <local:ViewLocator/>
+    </Application.DataTemplates>
+  
+    <Application.Styles>
+        <FluentTheme />
+    </Application.Styles>
+</Application>

Presence.Desktop/App.axaml.cs

@@ -0,0 +1,37 @@
+using Avalonia;
+using Avalonia.Controls.ApplicationLifetimes;
+using Avalonia.Markup.Xaml;
+using Microsoft.Extensions.DependencyInjection;
+using Presence.Desktop.DI;
+using Presence.Desktop.ViewModels;
+using Presence.Desktop.Views;
+
+namespace Presence.Desktop
+{
+    public partial class App : Application
+    {
+        public override void Initialize()
+        {
+            AvaloniaXamlLoader.Load(this);
+        }
+
+        public override void OnFrameworkInitializationCompleted()
+        {
+            var serviceCollection = new ServiceCollection();
+            serviceCollection.AddCommonService();
+            var services = serviceCollection.BuildServiceProvider();
+            var mainViewModel = services.GetRequiredService<MainWindowViewModel>();
+
+            if (ApplicationLifetime is IClassicDesktopStyleApplicationLifetime desktop)
+            {
+                desktop.MainWindow = new MainWindow
+                {
+                    DataContext = mainViewModel,
+                };
+            }
+
+            base.OnFrameworkInitializationCompleted();
+        }
+
+    }
+}

Presence.Desktop/DI/ServiceColletionExtensions.cs

@@ -0,0 +1,26 @@
+using data;
+using data.Repository;
+using domain.Service;
+using domain.UseCase;
+using Microsoft.Extensions.DependencyInjection;
+using Presence.Desktop.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Runtime.CompilerServices;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Presence.Desktop.DI
+{
+    public static class ServiceColletionExtensions
+    {
+        public static void AddCommonService(this IServiceCollection collection) {
+            collection
+             .AddDbContext<RemoteDatabaseContext>()
+             .AddSingleton<IGroupRepository, SQLGroupRepository>()
+             .AddTransient<IGroupUseCase, GroupService>()
+             .AddTransient<MainWindowViewModel>();
+        }
+    }
+}

Presence.Desktop/Presence.Desktop.csproj

@@ -0,0 +1,34 @@
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <OutputType>WinExe</OutputType>
+    <TargetFramework>net8.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <BuiltInComInteropSupport>true</BuiltInComInteropSupport>
+    <ApplicationManifest>app.manifest</ApplicationManifest>
+    <AvaloniaUseCompiledBindingsByDefault>true</AvaloniaUseCompiledBindingsByDefault>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <Folder Include="Models\" />
+    <AvaloniaResource Include="Assets\**" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Avalonia" Version="11.2.1" />
+    <PackageReference Include="Avalonia.Desktop" Version="11.2.1" />
+    <PackageReference Include="Avalonia.Themes.Fluent" Version="11.2.1" />
+    <PackageReference Include="Avalonia.Fonts.Inter" Version="11.2.1" />
+    <!--Condition below is needed to remove Avalonia.Diagnostics package from build output in Release configuration.-->
+    <PackageReference Include="Avalonia.Diagnostics" Version="11.2.1">
+      <IncludeAssets Condition="'$(Configuration)' != 'Debug'">None</IncludeAssets>
+      <PrivateAssets Condition="'$(Configuration)' != 'Debug'">All</PrivateAssets>
+    </PackageReference>
+    <PackageReference Include="Avalonia.ReactiveUI" Version="11.2.1" />
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="9.0.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\data\data.csproj" />
+    <ProjectReference Include="..\domain\domain.csproj" />
+  </ItemGroup>
+</Project>

Presence.Desktop/Program.cs

@@ -0,0 +1,24 @@
+using Avalonia;
+using Avalonia.ReactiveUI;
+using System;
+
+namespace Presence.Desktop
+{
+    internal sealed class Program
+    {
+        // Initialization code. Don't use any Avalonia, third-party APIs or any
+        // SynchronizationContext-reliant code before AppMain is called: things aren't initialized
+        // yet and stuff might break.
+        [STAThread]
+        public static void Main(string[] args) => BuildAvaloniaApp()
+            .StartWithClassicDesktopLifetime(args);
+
+        // Avalonia configuration, don't remove; also used by visual designer.
+        public static AppBuilder BuildAvaloniaApp()
+            => AppBuilder.Configure<App>()
+                .UsePlatformDetect()
+                .WithInterFont()
+                .LogToTrace()
+                .UseReactiveUI();
+    }
+}

Presence.Desktop/ViewLocator.cs

@@ -0,0 +1,32 @@
+using Avalonia.Controls;
+using Avalonia.Controls.Templates;
+using Presence.Desktop.ViewModels;
+using System;
+
+namespace Presence.Desktop
+{
+    public class ViewLocator : IDataTemplate
+    {
+
+        public Control? Build(object? param)
+        {
+            if (param is null)
+                return null;
+
+            var name = param.GetType().FullName!.Replace("ViewModel", "View", StringComparison.Ordinal);
+            var type = Type.GetType(name);
+
+            if (type != null)
+            {
+                return (Control)Activator.CreateInstance(type)!;
+            }
+
+            return new TextBlock { Text = "Not Found: " + name };
+        }
+
+        public bool Match(object? data)
+        {
+            return data is ViewModelBase;
+        }
+    }
+}

Presence.Desktop/ViewModels/MainWindowViewModel.cs

@@ -0,0 +1,13 @@
+using domain.UseCase;
+
+namespace Presence.Desktop.ViewModels
+{
+    public class MainWindowViewModel : ViewModelBase
+    {
+        private readonly IGroupUseCase _groupService;
+        public MainWindowViewModel(IGroupUseCase groupUseCase) {
+        _groupService = groupUseCase;
+        }
+        public string Greeting { get; } = "Welcome to Avalonia!";
+    }
+}

Presence.Desktop/ViewModels/ViewModelBase.cs

@@ -0,0 +1,8 @@
+using ReactiveUI;
+
+namespace Presence.Desktop.ViewModels
+{
+    public class ViewModelBase : ReactiveObject
+    {
+    }
+}

Presence.Desktop/Views/MainWindow.axaml

@@ -0,0 +1,33 @@
+<Window xmlns="https://github.com/avaloniaui"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:vm="using:Presence.Desktop.ViewModels"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
+        x:Class="Presence.Desktop.Views.MainWindow"
+        x:DataType="vm:MainWindowViewModel"
+        Icon="/Assets/avalonia-logo.ico"
+        Title="Presence.Desktop">
+
+    <Design.DataContext>
+        <vm:MainWindowViewModel/>
+    </Design.DataContext>
+	<DockPanel Background="Azure">
+		<StackPanel DockPanel.Dock="Bottom">
+			<TextBlock Text="List ↑" HorizontalAlignment="Center"/>
+		</StackPanel>
+		<StackPanel 
+			Spacing="10"
+			HorizontalAlignment="Center"
+			DockPanel.Dock="Top"
+			Orientation="Horizontal">
+			<TextBlock Text="Combobox ->"/>
+			<ComboBox/>
+			<ComboBox/>
+			<ComboBox/>
+		</StackPanel>
+		<Border>
+			<ListBox Background="Bisque"/>
+		</Border>
+	</DockPanel>
+</Window>

Presence.Desktop/Views/MainWindow.axaml.cs

@@ -0,0 +1,12 @@
+using Avalonia.Controls;
+
+namespace Presence.Desktop.Views
+{
+    public partial class MainWindow : Window
+    {
+        public MainWindow()
+        {
+            InitializeComponent();
+        }
+    }
+}

Presence.Desktop/app.manifest

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<assembly manifestVersion="1.0" xmlns="urn:schemas-microsoft-com:asm.v1">
+  <!-- This manifest is used on Windows only.
+       Don't remove it as it might cause problems with window transparency and embedded controls.
+       For more details visit https://learn.microsoft.com/en-us/windows/win32/sbscs/application-manifests -->
+  <assemblyIdentity version="1.0.0.0" name="Presence.Desktop.Desktop"/>
+
+  <compatibility xmlns="urn:schemas-microsoft-com:compatibility.v1">
+    <application>
+      <!-- A list of the Windows versions that this application has been tested on
+           and is designed to work with. Uncomment the appropriate elements
+           and Windows will automatically select the most compatible environment. -->
+
+      <!-- Windows 10 -->
+      <supportedOS Id="{8e0f7a12-bfb3-4fe8-b9a5-48fd50a15a9a}" />
+    </application>
+  </compatibility>
+</assembly>

console_ui/GroupUI.cs

@@ -0,0 +1,40 @@
+using domain.Request;
+using domain.Service;
+using domain.UseCase;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace console_ui
+{
+    class GroupUI
+    {
+        private readonly IGroupUseCase _groupService;
+        public GroupUI(IGroupUseCase groupService)
+        {
+            _groupService = groupService;
+        }
+
+        public void AddGroup() {
+            Console.WriteLine("Введите имя группы");
+            _groupService.AddGroup(new AddGroupRequest { Name = Console.ReadLine() });
+        }
+        public void AddGroupWithStudents() {
+            Console.WriteLine("Введите имя группы");
+            AddGroupRequest addGroupRequest = new AddGroupRequest { Name = Console.ReadLine()};
+            List<AddStudentRequest> addStudentRequests = new List<AddStudentRequest>() { 
+                new AddStudentRequest{StudentName = "123" },
+                new AddStudentRequest{StudentName = "312" },
+                new AddStudentRequest{StudentName = "222" },
+                new AddStudentRequest{StudentName = "444" },
+            };
+            AddGroupWithStudentsRequest addGroupWithStudents = new AddGroupWithStudentsRequest {  
+                addGroupRequest = addGroupRequest,
+                AddStudentRequests = addStudentRequests
+            };
+            _groupService.AddGroupWithSutdents(addGroupWithStudents);
+        }
+    }
+}

console_ui/Program.cs

@@ -1,2 +1,31 @@
-// See https://aka.ms/new-console-template for more information
+using console_ui;
-Console.WriteLine("Hello, World!");
+using data;
+using data.Repository;
+using domain.Service;
+using domain.UseCase;
+using Microsoft.Extensions.DependencyInjection;
+
+void printAllGroups(IGroupRepository groupRepository)
+{
+    foreach (var item in groupRepository.getAllGroup())
+    {
+        Console.WriteLine($"{item.Id} {item.Name}");
+    }
+}
+
+IServiceCollection serviceCollection = new ServiceCollection();
+
+serviceCollection
+    .AddDbContext<RemoteDatabaseContext>()
+    .AddSingleton<IGroupRepository, SQLGroupRepository>()
+    .AddSingleton<IGroupUseCase, GroupService>()
+    .AddSingleton<GroupUI>();
+
+
+var serivceProvider = serviceCollection.BuildServiceProvider();
+
+var groupUi  = serivceProvider.GetService<GroupUI>();
+
+groupUi?.AddGroup();
+
+

data/RemoteDatabaseContext.cs

@@ -15,9 +15,9 @@ namespace data
             optionsBuilder.UseNpgsql("Host=localhost;Port=5432;Password=123;Username=postgres;Database=presence");
         }
 
-        DbSet<GroupDAO> groups { get;set;}  
+        public DbSet<GroupDAO> groups { get;set;}  
 
-        DbSet<UserDAO> users { get;set;}
+        public DbSet<UserDAO> users { get;set;}
 
         protected override void OnModelCreating(ModelBuilder modelBuilder)
         {

data/Repository/IGroupRepository.cs

@@ -0,0 +1,17 @@
+using data.DAO;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace data.Repository
+{
+    public interface IGroupRepository
+    {
+        public IEnumerable<GroupDAO> getAllGroup();
+        public bool addGroup(GroupDAO group);
+
+        public bool addGroupWithStudents(GroupDAO groupDAO, IEnumerable<UserDAO> userDAOs);
+    }
+}

data/Repository/SQLGroupRepository.cs

@@ -0,0 +1,50 @@
+using data.DAO;
+using Microsoft.EntityFrameworkCore;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace data.Repository
+{
+    public class SQLGroupRepository : IGroupRepository
+    {
+        private readonly RemoteDatabaseContext _dbContext;
+        public SQLGroupRepository(RemoteDatabaseContext remoteDatabaseContext) {
+            _dbContext = remoteDatabaseContext;
+        }
+        public bool addGroup(GroupDAO group)
+        {
+            _dbContext.groups.Add(group);
+            return _dbContext.SaveChanges() > 1;
+        }
+
+        public bool addGroupWithStudents(GroupDAO groupDAO, IEnumerable<UserDAO> userDAOs)
+        {
+            using var transaction = _dbContext.Database.BeginTransaction();
+            try {
+                _dbContext.groups.Add(groupDAO);
+                _dbContext.SaveChanges();
+                foreach (var item in userDAOs)
+                {
+                    item.Group = groupDAO;
+                    _dbContext.users.Add(item);
+                }
+                _dbContext.SaveChanges();
+                transaction.Commit();
+                return true;
+            }
+            catch (Exception ex) { 
+                transaction.Rollback();
+
+            }
+            return false;
+        }
+
+        public IEnumerable<GroupDAO> getAllGroup()
+        {
+            return _dbContext.groups.Include(group => group.Users).ToList();
+        }
+    }
+}

domain/Class1.cs

@@ -1,6 +0,0 @@
-namespace domain;
-
-public class Class1
-{
-
-}

domain/Entity/GroupEntity.cs

@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace domain.Entity
+{
+    public class GroupEntity
+    {
+        public int Id { get; set; }
+        public string Name { get; set; }
+        public IEnumerable<UserEntity>? Users { get; set; } = null;
+    }
+}

domain/Entity/UserEntity.cs

@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace domain.Entity
+{
+    public class UserEntity
+    {
+        public Guid  Guid { get; set; }
+        public string Name { get; set; }
+        public GroupEntity Group { get; set; }
+    }
+}

domain/Request/AddGroupRequest.cs

@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace domain.Request
+{
+    public class AddGroupRequest
+    {
+        public string Name { get; set; } 
+    }
+}

domain/Request/AddGroupWithStudent.cs

@@ -0,0 +1,14 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace domain.Request
+{
+    public class AddGroupWithStudentsRequest
+    {
+        public AddGroupRequest addGroupRequest { get; set; }
+        public IEnumerable<AddStudentRequest> AddStudentRequests { get; set; }
+    }
+}

domain/Request/AddStudentRequest.cs

@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace domain.Request
+{
+    public class AddStudentRequest
+    {
+        public string StudentName { get; set; }
+    }
+}

domain/Service/GroupService.cs

@@ -0,0 +1,59 @@
+using data.DAO;
+using data.Repository;
+using domain.Entity;
+using domain.Request;
+using domain.UseCase;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace domain.Service
+{
+    public class GroupService : IGroupUseCase
+    {
+        private readonly IGroupRepository _groupRepository;
+        public GroupService(IGroupRepository groupRepository)
+        {
+            _groupRepository = groupRepository;
+        }
+        public void AddGroup(AddGroupRequest addGroupRequest)
+        {
+            _groupRepository.addGroup(new GroupDAO { Name = addGroupRequest.Name });
+        }
+
+
+
+        public void AddGroupWithSutdents(AddGroupWithStudentsRequest addGroupWithStudents)
+        {
+            GroupDAO groupDAO = new GroupDAO { Name = addGroupWithStudents.addGroupRequest.Name };
+            List<UserDAO> users = addGroupWithStudents
+                .AddStudentRequests
+                .Select(it => new UserDAO { Name = it.StudentName })
+                .ToList();
+            _groupRepository.addGroupWithStudents(groupDAO, users);
+        }
+
+        public IEnumerable<GroupEntity> GetGroupsWithStudents()
+        {
+            return _groupRepository.getAllGroup().Select(
+                group => new GroupEntity
+                {
+                    Id = group.Id,
+                    Name = group.Name,
+                    Users = group.Users.Select(
+                        user => new UserEntity
+                        {
+                            Guid = user.Guid,
+                            Name = user.Name,
+                            Group = new GroupEntity
+                            {
+                                Id = group.Id,
+                                Name = group.Name,
+                            }
+                        }).ToList()
+                }).ToList();
+        }
+    }
+}

domain/UseCase/IGroupUseCase.cs

@@ -0,0 +1,17 @@
+using domain.Entity;
+using domain.Request;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace domain.UseCase
+{
+    public interface IGroupUseCase
+    {
+        public IEnumerable<GroupEntity> GetGroupsWithStudents();
+        public void AddGroup(AddGroupRequest addGroupRequest); 
+        public void AddGroupWithSutdents(AddGroupWithStudentsRequest addGroupWithStudents); 
+    }
+}

domain/domain.csproj

@@ -4,6 +4,10 @@
     <ProjectReference Include="..\data\data.csproj" />
   </ItemGroup>
 
+  <ItemGroup>
+    <Folder Include="Response\" />
+  </ItemGroup>
+
   <PropertyGroup>
     <TargetFramework>net8.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>

presnce.sln

@@ -3,31 +3,28 @@ Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio Version 17
 VisualStudioVersion = 17.0.31903.59
 MinimumVisualStudioVersion = 10.0.40219.1
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "data", "data\data.csproj", "{FFE39EC0-DDC4-4670-A991-075ADF2B4C95}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "data", "data\data.csproj", "{FFE39EC0-DDC4-4670-A991-075ADF2B4C95}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "domain", "domain\domain.csproj", "{633650E7-0BAB-49D7-B72A-64A5D5A22E26}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ui", "ui\ui.csproj", "{2CDB8D72-14C6-47D8-9DA0-852E72FE1663}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ui", "ui\ui.csproj", "{2CDB8D72-14C6-47D8-9DA0-852E72FE1663}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "console_ui", "console_ui\console_ui.csproj", "{1DEBFFB8-8F9B-4E2D-881C-A65AE0A206C3}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "console_ui", "console_ui\console_ui.csproj", "{1DEBFFB8-8F9B-4E2D-881C-A65AE0A206C3}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "domain", "domain\domain.csproj", "{8B7BA538-FFE9-4A67-A48B-0ECC957B2315}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Presence.Desktop", "Presence.Desktop\Presence.Desktop.csproj", "{48DA7873-9A3C-458C-8D52-F9156A3E66A6}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Presence.Api", "Presence.Api\Presence.Api.csproj", "{EC8CE801-1EEE-4AC1-808D-BF39A8C20ED9}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
 		Release|Any CPU = Release|Any CPU
 	EndGlobalSection
-	GlobalSection(SolutionProperties) = preSolution
-		HideSolutionNode = FALSE
-	EndGlobalSection
 	GlobalSection(ProjectConfigurationPlatforms) = postSolution
 		{FFE39EC0-DDC4-4670-A991-075ADF2B4C95}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{FFE39EC0-DDC4-4670-A991-075ADF2B4C95}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{FFE39EC0-DDC4-4670-A991-075ADF2B4C95}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{FFE39EC0-DDC4-4670-A991-075ADF2B4C95}.Release|Any CPU.Build.0 = Release|Any CPU
-		{633650E7-0BAB-49D7-B72A-64A5D5A22E26}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{633650E7-0BAB-49D7-B72A-64A5D5A22E26}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{633650E7-0BAB-49D7-B72A-64A5D5A22E26}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{633650E7-0BAB-49D7-B72A-64A5D5A22E26}.Release|Any CPU.Build.0 = Release|Any CPU
 		{2CDB8D72-14C6-47D8-9DA0-852E72FE1663}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{2CDB8D72-14C6-47D8-9DA0-852E72FE1663}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{2CDB8D72-14C6-47D8-9DA0-852E72FE1663}.Release|Any CPU.ActiveCfg = Release|Any CPU
@@ -36,5 +33,23 @@ Global
 		{1DEBFFB8-8F9B-4E2D-881C-A65AE0A206C3}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{1DEBFFB8-8F9B-4E2D-881C-A65AE0A206C3}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{1DEBFFB8-8F9B-4E2D-881C-A65AE0A206C3}.Release|Any CPU.Build.0 = Release|Any CPU
+		{8B7BA538-FFE9-4A67-A48B-0ECC957B2315}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{8B7BA538-FFE9-4A67-A48B-0ECC957B2315}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{8B7BA538-FFE9-4A67-A48B-0ECC957B2315}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{8B7BA538-FFE9-4A67-A48B-0ECC957B2315}.Release|Any CPU.Build.0 = Release|Any CPU
+		{48DA7873-9A3C-458C-8D52-F9156A3E66A6}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{48DA7873-9A3C-458C-8D52-F9156A3E66A6}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{48DA7873-9A3C-458C-8D52-F9156A3E66A6}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{48DA7873-9A3C-458C-8D52-F9156A3E66A6}.Release|Any CPU.Build.0 = Release|Any CPU
+		{EC8CE801-1EEE-4AC1-808D-BF39A8C20ED9}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{EC8CE801-1EEE-4AC1-808D-BF39A8C20ED9}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{EC8CE801-1EEE-4AC1-808D-BF39A8C20ED9}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{EC8CE801-1EEE-4AC1-808D-BF39A8C20ED9}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {013CA6C5-A281-4520-BCE1-70ACD7E0196A}
 	EndGlobalSection
 EndGlobal