namespace Brizco.Repository.Handlers.Position;

public class UpdatePositionCommandHandler : IRequestHandler<UpdatePositionCommand, bool>
{
    private readonly IRepositoryWrapper _repositoryWrapper;
    private readonly ICurrentUserService _currentUserService;

    public UpdatePositionCommandHandler(IRepositoryWrapper repositoryWrapper, ICurrentUserService currentUserService)
    {
        _repositoryWrapper = repositoryWrapper;
        _currentUserService = currentUserService;
    }

    public async Task<bool> Handle(UpdatePositionCommand request, CancellationToken cancellationToken)
    {
        var shift = await _repositoryWrapper.SetRepository<Domain.Entities.Complex.Position>()
            .TableNoTracking.FirstOrDefaultAsync(s => s.Id == request.Id, cancellationToken);
        if (shift == null)
            throw new AppException("Postion not found", ApiResultStatusCode.NotFound);

        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);

        var newPosition = Domain.Entities.Complex.Position.Create(request.Title,
            request.Description,
            complexId,
            request.SectionId);
        newPosition.Id = request.Id;

        var users = await _repositoryWrapper.SetRepository<PositionUser>().TableNoTracking
            .Where(pu => pu.PositionId == newPosition.Id)
            .ToListAsync(cancellationToken);

        //foreach (var user in users)
        //{
        //    if (!request.UserIds.Contains(user.ApplicationUserId))
        //    {
        //        _repositoryWrapper.SetRepository<PositionUser>()
        //            .Delete(user);
        //        await _repositoryWrapper.SaveChangesAsync(cancellationToken);
        //    }
        //}
        //foreach (var userId in request.UserIds)
        //{
        //    if (users.FirstOrDefault(u => u.ApplicationUserId == userId) == null)
        //    {
        //        newPosition.AddUser(userId);
        //    }
        //}

        _repositoryWrapper.SetRepository<Domain.Entities.Complex.Position>()
            .Update(newPosition);

        await _repositoryWrapper.SaveChangesAsync(cancellationToken);

        return true;
    }
}