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? result = _repositoryGroupImpl.UpdateGroupName(groupLocalEntity);
            if (result == null)
            {
                throw new Exception("");
            }
            return new Group
            {
                Id = result.Id,
                Name = result.Name
            };

        }

        public bool CreateGroup(Group group) {

            GroupLocalEntity? groupLocalEntity = new GroupLocalEntity{Id = group.Id, Name = group.Name};
            _repositoryGroupImpl.CreateGroup(groupLocalEntity);
            if (groupLocalEntity != null) return false;
            return true;
        }
    }
}