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 GroupRepositoryImpl _repositoryGroupImpl;
        
        public GroupUseCase(GroupRepositoryImpl repositoryGroupImpl)
        {
            _repositoryGroupImpl = repositoryGroupImpl;
        }

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

        public Group UpdateGroupName(Group group) {

            GroupLocalEntity? groupLocalEntity = new GroupLocalEntity { Id = group.Id, Name = group.Name };
            GroupLocalEntity? updatedGroupEntity = _repositoryGroupImpl.UpdateGroupName(groupLocalEntity);
            if (updatedGroupEntity == null) throw new Exception("");

            return new Group { Id = updatedGroupEntity.Id, Name = updatedGroupEntity.Name};

        }

        public Group CreateGroup(Group group) {

            GroupLocalEntity? groupLocalEntity = new GroupLocalEntity { Id = group.Id, Name = group.Name};
            GroupLocalEntity? createdGroupEntity = _repositoryGroupImpl.CreateGroup(groupLocalEntity);

            if (createdGroupEntity == null) throw new Exception("");

            return new Group { Id = createdGroupEntity.Id, Name = createdGroupEntity.Name};
        }
    }
}