using OtpNet;

namespace EnvelopeGenerator.Application.Contracts
{
    public interface IAuthenticator
    {
        string GenerateCode(int length);

        string GenerateTotpSecretKey(int? length = null);

        byte[] GenerateTotpQrCode(string userEmail, string secretKey, string? issuer = null, string? totpUrlFormat = null, int? pixelsPerModule = null);

        byte[] GenerateTotpQrCode(string userEmail, int? length = null, string? issuer = null, string? totpUrlFormat = null, int? pixelsPerModule = null);

        string GenerateTotp(string secretKey, int step = 30);

        bool VerifyTotp(string totpCode, string secretKey, int step = 30, VerificationWindow? window = null);
    }
}