namespace Brizco.Repository.Handlers.Shifts;

public class CreateShiftCommandHandler : IRequestHandler<CreateShiftCommand, ShiftSDto>
{
    private readonly IRepositoryWrapper _repositoryWrapper;
    private readonly ICurrentUserService _currentUserService;

    public CreateShiftCommandHandler(IRepositoryWrapper repositoryWrapper, ICurrentUserService currentUserService)
    {
        _repositoryWrapper = repositoryWrapper;
        _currentUserService = currentUserService;
    }
    public async Task<ShiftSDto> Handle(CreateShiftCommand request, CancellationToken cancellationToken)
    {

        if (_currentUserService.ComplexId == null)
            throw new AppException("ComplexId is null", ApiResultStatusCode.NotFound);
        if (!Guid.TryParse(_currentUserService.ComplexId, out Guid complexId))
            throw new AppException("ComplexId is wrong", ApiResultStatusCode.NotFound);

        try
        {
            await _repositoryWrapper.BeginTransaction(cancellationToken);
            var shift = Shift
                .Create(request.Title,
                    request.Description,
                    request.StartAt,
                    request.EndAt,
                    complexId);
            if (request.DayOfWeeks.Count == 0)
                throw new AppException("روزهای شیفت را انتخاب کنید");
            request.DayOfWeeks.ForEach(d => shift.SetDay(d));
            if (request.Routines.Count == 0)
                throw new AppException("روتین شیفت را انتخاب کنید");
            request.Routines.ForEach(r=>shift.AddRoutine(r));

            _repositoryWrapper.SetRepository<Shift>().Add(shift);
            await _repositoryWrapper.SaveChangesAsync(cancellationToken);
            await _repositoryWrapper.CommitAsync(cancellationToken);
            return shift.AdaptToSDto();
        }
        catch (Exception)
        {
            await _repositoryWrapper.RollBackAsync(cancellationToken);
            throw;
        }
    }
}