#pragma once

#include "connection.hpp"
#include "ref.hpp"

#include <boost/signals2/connection.hpp>

#include <memory>
#include <string>

/// @brief Implements the CHALLENGE command protocol to identify as an operator.
class Challenge : std::enable_shared_from_this<Challenge>
{
    Ref<EVP_PKEY> key_;
    Connection &connection_;
    boost::signals2::scoped_connection slot_;
    std::string buffer_;

    auto on_ircmsg(IrcCommand cmd, const IrcMsg &msg) -> void;
    auto finish_challenge() -> void;

public:
    Challenge(Ref<EVP_PKEY>, Connection &);

    /// @brief Starts the CHALLENGE protocol.
    /// @param connection Registered connection.
    /// @param user Operator username
    /// @param key Operator private RSA key
    /// @return Handle to the challenge object.
    static auto start(Connection &, std::string_view user, Ref<EVP_PKEY> key) -> std::shared_ptr<Challenge>;
};