using NexusReader.Application.Queries.Quiz;

namespace NexusReader.UI.Shared.Services;

public sealed class QuizStateService : IQuizStateService
{
    public string? CurrentQuizBlockId { get; private set; }
    public QuizDto? CurrentQuiz { get; private set; }
    public bool IsHydrating { get; private set; }
    public bool HasNewQuiz { get; private set; }

    public event Action<string>? OnQuizRequested;
    public event Action? OnQuizUpdated;

    public void RequestQuiz(string blockId)
    {
        CurrentQuizBlockId = blockId;
        OnQuizRequested?.Invoke(blockId);
    }

    public void SetQuiz(string blockId, QuizDto quiz)
    {
        CurrentQuizBlockId = blockId;
        CurrentQuiz = quiz;
        IsHydrating = false;
        HasNewQuiz = true;
        OnQuizUpdated?.Invoke();
    }

    public void SetHydrating(bool hydrating)
    {
        IsHydrating = hydrating;
        OnQuizUpdated?.Invoke();
    }

    public void MarkQuizAsSeen()
    {
        if (!HasNewQuiz) return;
        HasNewQuiz = false;
        OnQuizUpdated?.Invoke();
    }
}