Studety/Demo/Domain/UseCase/GroupUseCase.cs

using Demo.Data.Repository;
using Demo.domain.Models;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Demo.Domain.UseCase
{
    public class GroupUseCase
    {
        private UserRepositoryImpl _repositoryUserImpl;
        private GroupRepositoryImpl _repositoryGroupImpl;

        public List<Group> GetAllGroups() => _repositoryGroupImpl.GetAllGroups()
            .Select(it => new Group { Id = it.Id, Name = it.Name }).ToList();

        public GroupUseCase(UserRepositoryImpl repositoryImpl, GroupRepositoryImpl repositoryGroupImpl)
        {
            _repositoryUserImpl = repositoryImpl;
            _repositoryGroupImpl = repositoryGroupImpl;
        }

        public void AddGroup(Group group)
        {
            _repositoryGroupImpl.AddGroup(group: group);
        }

        public void UpdateGroupName(int groupId, string newName)
{
    _repositoryGroupImpl.UpdateGroupName(groupId, newName);
}

    }
}