// mqttcfg.h :
//

#if !defined(AGD_MQTTCFG_H__35CD3AFA_36BC_442B_83B7_D12E407E6B3A__INCLUDED_)
#define AGD_MQTTCFG_H__35CD3AFA_36BC_442B_83B7_D12E407E6B3A__INCLUDED_

#include <string>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <linux/if_arp.h>
#include <netinet/in.h>
#include <ifaddrs.h>
#include <sys/ioctl.h>
#ifndef _LIBBUILD
#include <gfa/svc/common/logfile.h>
#include <gfa/svc/mqttcl/mqttjson.h>
#else	//	_LIBBUILD
#include "common/logfile.h"
#include "mqttjson.h"
#endif	//	_LIBBUILD

#ifdef __cplusplus

/////////////////////////////////////////////////////////////////////////////
// mqttcfg.h - Declarations:

#define MQTTCL_TLS_MODE_OFF		0 // no TLS
#define MQTTCL_TLS_MODE_CRT		1 // TLS using certificates
#define MQTTCL_TLS_MODE_PSK		2 // TLS using preshared key

#define MQTTCL_MIN_QOS			0
#define MQTTCL_MAX_QOS			2
#define MQTTCL_DEFAULT_QOS		MQTTCL_MAX_QOS

#define MQTTCL_DEFAULT_RETAIN	false
#define MQTTCL_DEVICE_PREFIX	"GfA"

/////////////////////////////////////////////////////////////////////////////

class CMqttClConfig
{
public:
	CMqttClConfig(const char *pszShmUuid);
	virtual ~CMqttClConfig(void);
	
	bool LoadCfg(const char *pszCfgFilePath, CLogfile &rlf);

	inline const char* GetBrokerAddr(void) const {
		return m_strBrokerAddr.empty() ? NULL : m_strBrokerAddr.c_str();
	}
	
	inline unsigned short GetBrokerPort(void) const {
		return (unsigned short)m_nBrokerPort;
	}
	
	inline int GetDefaultQOS(void) const {
		return m_nDefaultQOS;
	}
	
	inline int GetTLSMode(void) const {
		return m_nTlsMode;
	}
	
	inline bool GetDefaultRetain(void) const {
		return m_bDefaultRetain;
	}

	inline const char* GetDevicePrefix(void) const {
		return m_strDevicePrefix.empty() ? NULL : m_strDevicePrefix.c_str();
	}

	inline const char* GetTlsCaCrtFile(void) const {
		return m_strTlsCaCrtFile.empty() ? NULL : m_strTlsCaCrtFile.c_str();
	}

	inline const char* GetTlsClCrtFile(void) const {
		return m_strTlsClCrtFile.empty() ? NULL : m_strTlsClCrtFile.c_str();
	}

	inline const char* GetTlsClKeyFile(void) const {
		return m_strTlsClKeyFile.empty() ? NULL : m_strTlsClKeyFile.c_str();
	}

	inline const char* GetTlsPSK(void) const {
		return m_strTlsPSK.empty() ? NULL : m_strTlsPSK.c_str();
	}

	inline const char* GetDeviceID(void) const {
		return m_strDeviceID.empty() ? NULL : m_strDeviceID.c_str();
	}

	inline const char* GetShmID(void) const {
		return m_strShmID.empty() ? NULL : m_strShmID.c_str();
	}

	static sa_family_t GetDevIdInterfaceName(char *pszItfName, size_t nCChItfName, const char *pszRequested);
	static const char* GetMacAddress(std::string &s);
	static std::string CreateDeviceID(const char *pszDevicePrefix);

private:
	bool GetValue(CJson_t &rjtParent, const char *pszKey, CJson_t &rjtVal, std::string &strErr);
	bool GetBoolValue(CJson_t &rjtParent, const char *pszKey, bool &rbVal, std::string &strErr);
	bool GetIntValue(CJson_t &rjtParent, const char *pszKey, int &rnVal, std::string &strErr);
	bool GetStringValue(CJson_t &rjtParent, const char *pszKey, std::string &rstrVal, std::string &strErr);

private:
	std::string	m_strBrokerAddr;
	std::string	m_strDevicePrefix;
	std::string	m_strTlsCaCrtFile;
	std::string	m_strTlsClCrtFile;
	std::string	m_strTlsClKeyFile;
	std::string	m_strTlsPSK;
	std::string	m_strDeviceID;
	std::string	m_strShmID;
	int			m_nBrokerPort;
	int			m_nDefaultQOS;
	bool		m_bDefaultRetain;
	int			m_nTlsMode;
};

/////////////////////////////////////////////////////////////////////////////
#endif	//	__cplusplus
#endif	//	!defined(AGD_MQTTCFG_H__35CD3AFA_36BC_442B_83B7_D12E407E6B3A__INCLUDED_)