/*
 * synergy -- mouse and keyboard sharing utility
 * Copyright (C) 2012-2016 Symless Ltd.
 * Copyright (C) 2006 Chris Schoeneman
 *
 * This package is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * found in the file LICENSE that should have accompanied this file.
 *
 * This package 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 "server/ClientProxy1_3.h"

#include "base/IEventQueue.h"
#include "base/Log.h"
#include "base/TMethodEventJob.h"
#include "synergy/ProtocolUtil.h"

#include <cstring>
#include <memory>

//
// ClientProxy1_3
//

ClientProxy1_3::ClientProxy1_3(
    const String &name, synergy::IStream *stream, IEventQueue *events)
    : ClientProxy1_2(name, stream, events),
      m_keepAliveRate(kKeepAliveRate),
      m_keepAliveTimer(NULL),
      m_events(events) {
  setHeartbeatRate(kKeepAliveRate, kKeepAliveRate * kKeepAlivesUntilDeath);
}

ClientProxy1_3::~ClientProxy1_3() {
  // cannot do this in superclass or our override wouldn't get called
  removeHeartbeatTimer();
}

void ClientProxy1_3::mouseWheel(SInt32 xDelta, SInt32 yDelta) {
  LOG(
      (CLOG_DEBUG2 "send mouse wheel to \"%s\" %+d,%+d", getName().c_str(),
       xDelta, yDelta));
  ProtocolUtil::writef(getStream(), kMsgDMouseWheel, xDelta, yDelta);
}

bool ClientProxy1_3::parseMessage(const UInt8 *code) {
  // process message
  if (memcmp(code, kMsgCKeepAlive, 4) == 0) {
    // reset alarm
    resetHeartbeatTimer();
    return true;
  } else {
    return ClientProxy1_2::parseMessage(code);
  }
}

void ClientProxy1_3::resetHeartbeatRate() {
  setHeartbeatRate(kKeepAliveRate, kKeepAliveRate * kKeepAlivesUntilDeath);
}

void ClientProxy1_3::setHeartbeatRate(double rate, double) {
  m_keepAliveRate = rate;
  ClientProxy1_2::setHeartbeatRate(rate, rate * kKeepAlivesUntilDeath);
}

void ClientProxy1_3::resetHeartbeatTimer() {
  // reset the alarm but not the keep alive timer
  ClientProxy1_2::removeHeartbeatTimer();
  ClientProxy1_2::addHeartbeatTimer();
}

void ClientProxy1_3::addHeartbeatTimer() {
  // create and install a timer to periodically send keep alives
  if (m_keepAliveRate > 0.0) {
    m_keepAliveTimer = m_events->newTimer(m_keepAliveRate, NULL);
    m_events->adoptHandler(
        Event::kTimer, m_keepAliveTimer,
        new TMethodEventJob<ClientProxy1_3>(
            this, &ClientProxy1_3::handleKeepAlive, NULL));
  }

  // superclass does the alarm
  ClientProxy1_2::addHeartbeatTimer();
}

void ClientProxy1_3::removeHeartbeatTimer() {
  // remove the timer that sends keep alives periodically
  if (m_keepAliveTimer != NULL) {
    m_events->removeHandler(Event::kTimer, m_keepAliveTimer);
    m_events->deleteTimer(m_keepAliveTimer);
    m_keepAliveTimer = NULL;
  }

  // superclass does the alarm
  ClientProxy1_2::removeHeartbeatTimer();
}

void ClientProxy1_3::handleKeepAlive(const Event &, void *) { keepAlive(); }

void ClientProxy1_3::keepAlive() {
  ProtocolUtil::writef(getStream(), kMsgCKeepAlive);
}
