namespace ChatApi.Services.Bot.Structs
{
    public class ChatBot
    {
        private readonly List<Question> _questions;
        private readonly ChatPersistence _persistence;
        private readonly Dictionary<int, string> _answers;
        private readonly Guid _usuarioId;
        private int _indiceAtual;

        public ChatBot(ChatPersistence persistence, Guid usuarioId)
        {
            _questions = new List<Question>();
            _answers = new Dictionary<int, string>();
            _indiceAtual = 0;
            _persistence = persistence;
            _usuarioId = usuarioId;

            var estado = _persistence.GetState(_usuarioId);
            if (estado != null)
            {
                _indiceAtual = estado.IndicePerguntaAtual;
                _answers = estado.Respostas;
            }
            else
            {
                _indiceAtual = 0;
            }
        }

        public void AddQuestion(Question Question)
        {
            _questions.Add(Question);
        }

        public bool InformarResposta(string resposta)
        {
            var perguntaAtual = _questions[_indiceAtual];
            if (perguntaAtual.Validator(resposta))
            {
                _answers[_indiceAtual] = resposta;
                _indiceAtual++;

                _persistence.SaveState(new ChatState
                {
                    UsuarioId = _usuarioId,
                    IndicePerguntaAtual = _indiceAtual,
                    Respostas = new Dictionary<int, string>(_answers)
                });

                return true;
            }

            Console.WriteLine("Resposta inválida. Tente novamente.");
            return false;
        }
        public void Iniciar()
        {
            while (_indiceAtual < _questions.Count)
            {
                var QuestionAtual = _questions[_indiceAtual];
                if (QuestionAtual.TryToAnswer(out _))
                {
                    _indiceAtual++;
                }
                else
                {
                    _indiceAtual = 0; // Reinicia o fluxo
                }
            }

            Console.WriteLine("Obrigado por responder a todas as perguntas!");
        }
    }
}