/*
 * DaemonRequestHandlerGroup.cpp
 *
 * Copyright (C) 2009 Matthias Schiffer <matthias@gamezock.de>
 *
 * This program is free software: you can redistribute it and/or modify it
 * under the terms of the GNU Lesser 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License along
 * with this program. If not, see <http://www.gnu.org/licenses/>.
 */

#include "DaemonRequestHandlerGroup.h"
#include "../Application.h"
#include "../ConnectionManager.h"
#include "../Requests/CommandRequest.h"

#include <Common/RequestManager.h>
#include <Common/Requests/FSInfoRequest.h>
#include <Common/Requests/StatusRequest.h>

namespace Mad {
namespace Server {
namespace RequestHandlers {

void DaemonRequestHandlerGroup::DaemonRequestHandler::handlePacket(boost::shared_ptr<const Common::XmlPacket> packet) {
  if(packet->getType() != type) {
    getApplication()->log(Core::Logger::LOG_ERROR, "Received an unexpected packet.");

    Common::XmlPacket ret;
    ret.setType("Error");
    ret.set("ErrorCode", Core::Exception::UNEXPECTED_PACKET);

    sendPacket(ret);

    signalFinished();
    return;
  }

  if(!getConnection()->isAuthenticated())
    throw(Core::Exception(Core::Exception::PERMISSION));

  try {
    ConnectionManager *connectionManager = dynamic_cast<Application&>(*getApplication()).getConnectionManager();

    boost::shared_ptr<Common::Connection> daemonCon = connectionManager->getDaemonConnection(packet->get<const std::string&>("daemon"));
    boost::shared_ptr<Common::Request> request;

    if(type == "DaemonCommand")
      request.reset(new Requests::CommandRequest(getApplication(), (packet->get<const std::string&>("command") == "reboot")));
    else if(type == "DaemonFSInfo")
      request.reset(new Common::Requests::FSInfoRequest(getApplication()));
    else // type == "GetDaemonStatus"
      request.reset(new Common::Requests::StatusRequest(getApplication()));

    request->connectSignalFinished(boost::bind(&DaemonRequestHandlerGroup::DaemonRequestHandler::requestFinished, this, _1, _2));
    getRequestManager()->sendRequest(daemonCon.get(), request);
  }
  catch(Core::Exception &e) {
    Common::XmlPacket ret;
    ret.setType("Error");
    ret.set("ErrorCode", e.getErrorCode());
    ret.set("SubCode", e.getSubCode());
    ret.set("SubSubCode", e.getSubSubCode());
    ret.set("Where", e.getWhere());

    sendPacket(ret);
    signalFinished();
  }
}

void DaemonRequestHandlerGroup::DaemonRequestHandler::requestFinished(boost::shared_ptr<const Common::XmlPacket> packet, Core::Exception error) {
  if(error) {
    Common::XmlPacket ret;
    ret.setType("Error");
    ret.set("ErrorCode", error.getErrorCode());
    ret.set("SubCode", error.getSubCode());
    ret.set("SubSubCode", error.getSubSubCode());
    ret.set("Where", error.getWhere());

    sendPacket(ret);
  }
  else {
    sendPacket(*packet);
  }

  signalFinished();
}


DaemonRequestHandlerGroup::DaemonRequestHandlerGroup() {
  types.insert("DaemonCommand");
  types.insert("DaemonFSInfo");
  types.insert("GetDaemonStatus");
}

boost::shared_ptr<Common::RequestHandler> DaemonRequestHandlerGroup::createRequestHandler(Common::Application *application, const std::string &type) {
  if(types.find(type) == types.end())
    return boost::shared_ptr<Common::RequestHandler>();
  else
    return boost::shared_ptr<DaemonRequestHandler>(new DaemonRequestHandler(application, type));
}

}
}
}