using Microsoft.AspNetCore.Cryptography.KeyDerivation;

namespace HyperBooru.Services;

public interface IUserService {
    public bool ShowNsfw { get; set; }

    public event EventHandler<bool> ShowNsfwChanged;
}

public class UserService : IUserService {
    public bool ShowNsfw {
        get => showNsfw;
        set {
            showNsfw = value;
            ShowNsfwChanged?.Invoke(this, value);
        }
    }

    public event EventHandler<bool> ShowNsfwChanged;

    private bool showNsfw = false;

    public static string HashPassword(string password) =>
        Convert.ToBase64String(
            KeyDerivation.Pbkdf2(
                password,
                Array.Empty<byte>(),
                KeyDerivationPrf.HMACSHA512,
                100_000,
                512 / 8));
}