sick_scan_common_nw.h

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//
// Created by michael on 1/22/18.
//

#ifndef SICK_SCAN_SICK_SCAN_COMMON_NW_H
#define SICK_SCAN_SICK_SCAN_COMMON_NW_H

#include "sick_scan/tcp/BasicDatatypes.hpp"
#include "sick_scan/tcp/tcp.hpp"
#include <map>  // for std::map

//
// SickScanCommonNw.cpp
//
//  Created on: 18.07.2011
//      Author: sick
//
#include "sick_scan/tcp/tcp.hpp"
#include "sick_scan/tcp/errorhandler.hpp"
#include "sick_scan/tcp/toolbox.hpp"
#include "sick_scan/tcp/Mutex.hpp"


#include <string>

class SopasEventMessage;

class SopasAnswer;

enum SopasProtocol
{
  CoLa_A, 
  CoLa_B,  
  CoLa_Unknown  
};


class SickScanCommonNw
{
public:


  SickScanCommonNw();

  ~SickScanCommonNw();

  bool init(std::string ipAddress,
            unsigned short portNumber,
            Tcp::DisconnectFunction disconnectFunction,
            void *obj);

  bool setReadCallbackFunction(Tcp::ReadFunction readFunction,
                               void *obj);

  bool connect();

  bool isConnected();

  bool disconnect();

  void sendCommandBuffer(UINT8 *buffer, UINT16 len);

private:
  // TCP
  bool openTcpConnection();

  void closeTcpConnection();

  static void readCallbackFunctionS(void *obj, UINT8 *buffer, UINT32 &numOfBytes);

  void readCallbackFunction(UINT8 *buffer, UINT32 &numOfBytes);

  SopasEventMessage findFrameInReceiveBuffer();

  void processFrame(SopasEventMessage &frame);

  bool m_beVerbose;


  // Response buffer
  UINT32 m_numberOfBytesInResponseBuffer; 
  UINT8 m_responseBuffer[1024]; 
  Mutex m_receiveDataMutex; 

  // Receive buffer
  UINT32 m_numberOfBytesInReceiveBuffer; 
  UINT8 m_receiveBuffer[25000]; 



  // TCP
  Tcp m_tcp;
  std::string m_ipAddress;
  UINT16 m_portNumber;
  SopasProtocol m_protocol;


  void copyFrameToResposeBuffer(UINT32 frameLength);

  void removeFrameFromReceiveBuffer(UINT32 frameLength);

protected:
  enum State
  {
    CONSTRUCTED
    ,
    CONNECTED
    //          , RUNNING
  };

  State m_state;
};

class SopasEventMessage
{
public:
  SopasEventMessage();

  ~SopasEventMessage()
  {}

  SopasEventMessage(BYTE *buffer, SopasProtocol protocol, UINT32 frameLength);

  SopasProtocol getProtocolType() const
  {
    return m_protocol;
  }


  UINT32 size() const
  {
    return m_frameLength;
  }

  UINT32 getPayLoadLength() const;

  std::string getCommandString() const;

  BYTE *getPayLoad();

  BYTE *getRawData();

  INT32 getVariableIndex();

  std::string getVariableName();

  bool isValid() const
  { return (m_buffer != NULL); }

private:
  void detectEncoding();

  void detectMessageType();

private:
  BYTE *m_buffer;
  SopasProtocol m_protocol;
  UINT32 m_frameLength;
};

class SopasAnswer
{
public:
  SopasAnswer(const BYTE *answer, UINT32 answerLength);

  ~SopasAnswer();

  BYTE *getBuffer()
  { return m_answerBuffer; }

  UINT32 size()
  { return m_answerLength; }

  bool isValid()
  { return (m_answerBuffer != NULL); }

private:
  UINT32 m_answerLength;
  BYTE *m_answerBuffer;
};

#endif //SICK_SCAN_SICK_SCAN_COMMON_NW_H