/**
  * @RDE_HEADER@
  * The ClientMessage class is an abstract base class for concrete ClientMessage objects
  * $Id$
  * $HeadURL$
  * $Author$
  * Created by Hannes Fritsche, SLSE, 2017-09-07
  */
#include "client_message.h"
#include "reply_message.h"
#include "exercise_manager.h"
#include "WebSocketInterface/Messages/message_transmitter.h"
#include "WebSocketInterface/Messages/reply_message.h"
#include "WebSocketInterface/json_keys.h"

#include <QtCore/QJsonDocument>
#include <QtCore/QUuid>
#include <chrono>

/*
 *python testing:

import websocket
import json
import time
ws = websocket.create_connection("ws://127.0.0.1:2081")
d = { 'type' : 'getEssentials', 'uuid': 'blub' }
ws.send(json.dumps(d))
d = { 'type' : 'getConfigCNR', 'uuid': 'blub' }
ws.send(json.dumps(d))
d = { 'type' : 'getPositionsCNR', 'uuid': 'blub', 'data': {'repeat': 10}}
ws.send(json.dumps(d))
while True:
  ws.recv()

*/

namespace CombatNetRadio
{
namespace WebSocketInterface
{

using namespace JsonKeys;

namespace Messages
{

// ####### ClientMessage begin #######
ClientMessage *ClientMessage::create(const QString &message, NGL::INGLLogger &logger)
{
  ClientMessage *result = nullptr;
  QJsonParseError error;
  QJsonDocument doc = QJsonDocument::fromJson(message.toUtf8(), &error);

  if (error.error != QJsonParseError::NoError)
  {
    ERROR_LOG(logger) << "Got message which is not JSON conform: " << message;
    return new InvalidMessage(QString(), QStringLiteral("Got message which is not JSON conform"));
  }

  QJsonObject obj       = doc.object();

  QJsonObject dataPart  = obj.value(DATA()).toObject();
  QString type          = obj.value(TYPE()).toString();
  QString uuid          = obj.value(UUID_()).toString();

  if (type.isEmpty())
  {
    ERROR_LOG(logger) << "Got message without type: " << message;
    result = new InvalidMessage(uuid, QStringLiteral("Message has no type"));
  }
  else if (type == ERROR_() && dataPart.contains(ERROR_MESSAGE()) && dataPart.contains(ERROR_CLASS()) && dataPart.contains(UUID_()))
  {
    ERROR_LOG(logger) << "Got error message: " << QJsonDocument(dataPart).toJson();
    return nullptr;
  }
  else if (uuid.isEmpty())
  {
    ERROR_LOG(logger) << "Got message without uuid: " << message;
    result = new InvalidMessage(QString(), QStringLiteral("Got message without uuid"));
  }
  else if (type == GET_ESSENTIALS())
    result = new GetEssentialsMessage(type, uuid, dataPart);
  else if (type == GET_CONFIG_CNR())
    result = new GetConfigCnrMessage(type, uuid, dataPart);
  else if (type == GET_POSITIONS_CNR())
    result = new GetPositionsCnrMessage(type, uuid, dataPart);
  else if (type == ALIVE_REQUEST())
    result = new AliveRequest(type, uuid, dataPart);
  else if (type == OK())
    result = new OkMessageC(type, uuid, dataPart);
  else if (type == CONFIG_CNR())
    result = new ConfigCnrMessageC(type, uuid, dataPart);

  if (result == nullptr)
  {
    ERROR_LOG(logger) << "Got message with invalid type: " << message;
    result = new InvalidMessage(uuid, QStringLiteral("Invalid type"));
  }

  if (!result->hasValidData())
  {
    ERROR_LOG(logger) << "Got message with invalid data part: " << message;
    delete result;
    result = new InvalidMessage(uuid, QStringLiteral("Has invalid data part"));
  }

  return result;
}

ClientMessage::ClientMessage(const QString &type, const QString &uuid, const QJsonObject &data)
  : m_type(type)
  , m_uuid(uuid)
  , m_data(data)
{
}

// ####### ClientMessage end #######

// ####### InvalidMessage begin #######
void InvalidMessage::process(ExerciseManager *exerciseManager, MessageTransmitter *transmitter)
{
  Q_UNUSED(exerciseManager);
  ErrorMessage::ErrorData errorData;

  errorData.errorClass    = 1; // ??????????
  errorData.errorMessage  = m_errorText;
  errorData.uuid          = m_uuid;

  transmitter->addMessage(ErrorMessage(errorData));
}

bool InvalidMessage::hasValidData() const
{
  // always true because there is no data part
  return true;
}

// ####### InvalidMessage end #######


// ####### GetEssentialsMessage begin #######
void GetEssentialsMessage::process(ExerciseManager *exerciseManager, MessageTransmitter *transmitter)
{
  using namespace Messages;
  transmitter->addMessage(exerciseManager->trainingAreaData(m_uuid));

  for (const ReplyMessage &currentMessage : exerciseManager->radioStations(m_uuid))
    transmitter->addMessage(currentMessage);

  QString requester      = m_data.value(REQUESTER()).toString();
  bool    isActiveClient = m_data.value(ISACTIVECLIENT()).toBool();

  transmitter->addMessage(exerciseManager->configCnr(m_uuid));
  exerciseManager->onConfigCnrSent((qint64) transmitter, m_uuid, requester, isActiveClient);
}

// ####### GetEssentialsMessage end #######

// ####### GetConfigCnrMessage begin #######
void GetConfigCnrMessage::process(ExerciseManager *exerciseManager, MessageTransmitter *transmitter)
{
  QString requester      = m_data.value(REQUESTER()).toString();
  bool    isActiveClient = m_data.value(ISACTIVECLIENT()).toBool();
  transmitter->addMessage(exerciseManager->configCnr(m_uuid));
  exerciseManager->onConfigCnrSent((qint64) transmitter, m_uuid, requester, isActiveClient);
}

// ####### GetConfigCnrMessage end #######

void OkMessageC::process(ExerciseManager *exerciseManager, MessageTransmitter *transmitter)
{
  exerciseManager->onConfigCnrReceived((qint64) transmitter, m_uuid);
}

// ####### GetPositionsCnrMessage begin #######
void GetPositionsCnrMessage::process(ExerciseManager *exerciseManager, MessageTransmitter *transmitter)
{
  transmitter->addMessage(exerciseManager->positionsCnr(m_uuid));

  int   updateInterval = m_data.value(REPEAT()).toInt();
  if (updateInterval > 0)
    exerciseManager->setPositionsUpdateInterval(std::chrono::seconds(updateInterval));
  else
    exerciseManager->stopPositionsUpdate();
}

bool GetPositionsCnrMessage::hasValidData() const
{
  return m_data.contains(REPEAT());
}

// ####### GetPositionsCnrMessage end #######

// ####### GetPositionsCnrMessage begin #######
void AliveRequest::process(ExerciseManager *exerciseManager, MessageTransmitter *transmitter)
{
  Q_UNUSED(exerciseManager);
  transmitter->addMessage(AliveResponse(m_uuid));
}

void ConfigCnrMessageC::process(ExerciseManager *exerciseManager, MessageTransmitter *transmitter)
{
  exerciseManager->onConfigCnrProcessed((qint64) transmitter, m_uuid, m_data);
}

// ####### GetPositionsCnrMessage end #######
} // namespace Messages
} // namespace WebSocketInterface
} // namespace CombatNetRadio