xbot/main.cpp

#include <boost/asio.hpp>
#include <boost/asio/ssl.hpp>

#include "connection.hpp"
#include "ircmsg.hpp"
#include "linebuffer.hpp"
#include "settings.hpp"
#include "thread.hpp"

#include "irc_parse_thread.hpp"
#include "ping_thread.hpp"
#include "registration_thread.hpp"

#include <algorithm>
#include <chrono>
#include <fstream>
#include <coroutine>
#include <iostream>
#include <limits>
#include <list>
#include <memory>
#include <string>
#include <string_view>
#include <tuple>
#include <utility>
#include <variant>
#include <vector>
#include <unordered_map>
#include <unordered_set>

using namespace std::chrono_literals;


struct ChatThread : public Thread
{
    auto priority() const -> priority_type override
    {
        return 100;
    }
    auto on_event(Event const& event) -> callback_result override
    {
        if (auto const* irc_event = dynamic_cast<IrcMsgEvent const*>(&event))
        {
            auto const& irc = irc_event->irc;
            if (irc.command == "PRIVMSG" && 2 == irc.args.size())
            {
                std::cout << "Chat from " << irc.source << ": " << irc.args[1] << std::endl;
                return { ThreadOutcome::Continue, EventOutcome::Consume };
            }
        }
        return {};
    }
};

struct UnhandledThread : public Thread
{
    auto priority() const -> priority_type override
    {
        return std::numeric_limits<Thread::priority_type>::max();
    }

    auto on_event(Event const& event) -> callback_result override
    {
        if (auto irc_event = dynamic_cast<IrcMsgEvent const*>(&event))
        {
            auto& irc = irc_event->irc;
            std::cout << "Unhandled message " << irc.command;
            for (auto const arg : irc.args)
            {
                std::cout << " " << arg;
            }
            std::cout << "\n";
        }
        return {};
    }
};

auto start(boost::asio::io_context & io, Settings const& settings) -> void
{
    auto connection = std::make_shared<Connection>(io);

    connection->add_thread(std::make_shared<IrcParseThread>(connection.get()));
    connection->add_thread(std::make_shared<PingThread>(connection.get()));
    connection->add_thread(std::make_shared<RegistrationThread>(connection.get(), settings.password, settings.username, settings.realname, settings.nickname));
    connection->add_thread(std::make_shared<ChatThread>());
    connection->add_thread(std::make_shared<UnhandledThread>());

    boost::asio::co_spawn(
        io,
        connection->connect(io, settings.host, settings.service),
        [&io, &settings](std::exception_ptr e)
        {
            auto timer = std::make_shared<boost::asio::steady_timer>(io);
            timer->expires_from_now(5s);
            timer->async_wait([&io, &settings, timer](auto) {
                start(io, settings);
            });
        });
}

auto get_settings() -> Settings
{
    if (auto config_stream = std::ifstream {"config.toml"})
    {
        return Settings::from_stream(config_stream);
    }
    else
    {
        std::cerr << "Unable to open config.toml\n";
        std::exit(1);
    }
}

auto main() -> int
{
    auto const settings = get_settings();
    auto io = boost::asio::io_context{};
    start(io, settings);
    io.run();
}