/*
 * madc.cpp
 *
 * Copyright (C) 2008 Matthias Schiffer <matthias@gamezock.de>
 *
 * This program is free software: you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program. If not, see <http://www.gnu.org/licenses/>.
 */

#include "Net/ClientConnection.h"
#include "Net/IPAddress.h"
#include "Common/Logger.h"
#include "Common/Backends/ConsoleLogger.h"
#include "Common/RequestManager.h"
#include "Common/Util.h"
#include "Client/CommandParser.h"
#include "Client/InformationManager.h"

#include <iostream>
#include <cstring>
#include <cstdlib>
#include <string>

#include <readline/readline.h>
#include <readline/history.h>

using namespace Mad;


static Client::CommandParser *parser;
static struct pollfd fds[2];


static void usage(const std::string &cmd) {
  std::cerr << "Usage: " << cmd << " address[:port]" << std::endl;
}

static void handleCommand(char *cmd) {
  if(!cmd)
    parser->requestDisconnect();
  else if(!*cmd)
    return;
  else {
    parser->parse(cmd);
    add_history(cmd);
  }

  if(parser->requestsActive()) {
    rl_callback_handler_remove();
    fds[0].events = 0;
  }
}

static void activateReadline() {
  if(parser->willDisconnect())
    return;

  rl_callback_handler_install("mad> ", handleCommand);
  fds[0].events = POLLIN;
}

int main(int argc, char *argv[]) {
  if(argc != 2) {
    usage(argv[0]);
    std::exit(1);
  }

  Common::Backends::ConsoleLogger logger;
  Common::Logger::registerLogger(&logger);

  Net::Connection::init();

  Common::RequestManager::init(false);
  Net::ClientConnection *connection = new Net::ClientConnection;

  try {
    connection->connect(Net::IPAddress(argv[1]));

    std::cerr << "Connecting to " << argv[1] << "..." << std::flush;

    while(connection->isConnecting()) {
      struct pollfd fd = connection->getPollfd();

      if(poll(&fd, 1, 10000) > 0)
        connection->sendReceive(fd.revents);
    }

    std::cerr << " connected." << std::endl;

    Common::RequestManager::getRequestManager()->registerConnection(connection);

    std::cerr << "Receiving host list..." << std::flush;

    Client::InformationManager::init(connection);

    while(!Client::InformationManager::getInformationManager()->isInitialised()) {
      struct pollfd fd = connection->getPollfd();

      if(poll(&fd, 1, 10000) > 0)
        connection->sendReceive(fd.revents);
    }

    std::cerr << " done." << std::endl << std::endl;

    parser = new Mad::Client::CommandParser(connection);
    parser->signalFinished().connect(sigc::ptr_fun(activateReadline));

    fds[0].fd = STDIN_FILENO;

    activateReadline();

    while(connection->isConnected()) {
      fds[1] = connection->getPollfd();

      if(poll(fds, 2, 10000) > 0) {
        if(fds[0].revents & POLLIN)
          rl_callback_read_char();

        connection->sendReceive(fds[1].revents);
      }
    }

    delete parser;

    Common::RequestManager::getRequestManager()->unregisterConnection(connection);
  }
  catch(Mad::Common::Exception &e) {
    Common::Logger::logf(Common::Logger::CRITICAL, "Connection error: %s", e.strerror().c_str());
  }

  delete connection;

  Net::Connection::deinit();

  return 0;
}