presence/Presence.API/Controllers/GroupController.cs

using domain.Request;
using domain.UseCase;
using Microsoft.AspNetCore.Mvc;
using Presence.API.Response;

namespace Presence.API.Controllers
{
    [ApiController]
    [Route("api/[controller]")]
    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
                        {
                            Id = user.Id,
                            LastName = user.LastName,
                            FirstName = user.FirstName,
                            Patronymic = user.Patronymic
                        }).ToList()
                }).ToList();
            return Ok(result);
        }

        [HttpDelete("/group/{id}")]
        public IActionResult DeleteGroup(int id)
        {
            RemoveGroupRequest removeGroupRequest = new() { GroupId = id };
            _groupService.RemoveGroup(removeGroupRequest);
            return NoContent();
        }
        
    }
}