#pragma once
// 下列 ifdef 块是创建使从 DLL 导出更简单的
// 宏的标准方法。此 DLL 中的所有文件都是用命令行上定义的 SCF_EXPORTS
// 符号编译的。在使用此 DLL 的
// 任何其他项目上不应定义此符号。这样，源文件中包含此文件的任何其他项目都会将
// SCF_API 函数视为是从 DLL 导入的，而此 DLL 则将用此宏定义的
// 符号视为是被导出的。

#ifndef SCF_EXPORTS
#ifdef _WIN64
#ifdef _DEBUG
#pragma comment(lib, "SCFX64D.lib")
#else
#pragma comment(lib, "SCFX64.lib")
#endif
#else
#ifdef _DEBUG
#pragma comment(lib, "SCFD.lib")
#else
#pragma comment(lib, "SCF.lib")
#endif
#endif
#endif

#ifdef SCF_EXPORTS
#define SCF_API __declspec(dllexport)
#define SCF_C_API extern "C" __declspec(dllexport)
#else
#define SCF_API __declspec(dllimport)
#define SCF_C_API extern "C" __declspec(dllimport)
#endif

#include "ResDataObject.h"
#include "DiosLock.h"
#include "logger.h"
#include "DiosThread.h"

typedef enum _SCF_Error {
	SCF_UNKNOWN=-99,
	SCF_NOMEMORY,
	SCF_OPEN_FAILED,//打开端口失败
	SCF_READ_FAILED,//读失败
	SCF_WRITE_FAILED,//写失败
	SCF_DISCONNETED,//连接断开
	SCF_LOCK_FAILED,//锁失败
	SCF_BUSY,//被占用
	SCF_PARAMETER_ERR,//连接参数不对
	SCF_OVERFLOW,
	SCF_NOPACKET ,
	SCF_TIMEOUT,

	SCF_FAILED = 0,
	SCF_SUCCEED

}SCF_ERR;
typedef enum _Packet_Result {
	PACKET_USELESS = -1,//不需要的数据包，直接丢弃
	PACKET_NOPACKET,//没有数据包
	PACKET_ISPACKET//有数据包

}PACKET_RET;

typedef enum _SCF_Transfertype {
	SCF_PACKET_TRANSFER = 0,//使用DeQueNotifyPacket&QueNotifyPacket
	SCF_NORMAL_TRANSFER  //使用通用读取方式

}SCF_TRANSFERTYPE;

typedef PACKET_RET(*PacketParser)(const char * pRecData, DWORD nLength, DWORD & PacketLength);

SCF_C_API PVOID MallocSCFPacket();//申请SCFPACKET
SCF_C_API void ReleaseSCFPacket(PVOID pObj);//释放SCFPACKET

// 此类是从 SCF.dll 导出的
class SCF_API SCFPacket
{
protected:
	char* m_PacketBuff;
	DWORD m_PacketBuffLen;

	DWORD m_PacketLength;

	bool ReAlloc(DWORD BaseLen);

public:
	SCFPacket();
	SCFPacket(char* pData, DWORD Length);

	virtual ~SCFPacket();

	bool SetBuffLen(DWORD Len);
	DWORD GetBuffLen();

	SCFPacket& operator = (const SCFPacket &tValue);

	int SetPacket(const char* pData, DWORD Length);

	int AddTail(const char* pData, DWORD Length);

	void SetPacketLen(DWORD Len);
	DWORD GetPacketLen();
	operator char*();

	int GetPacket(char* pData, DWORD Length);
};

class SCF_API SCFBuffer : public DiosLock
{
	DWORD m_CurPacketIdx;
	SCFPacket *m_pPacket[2];
public:
	SCFBuffer();

	~SCFBuffer();

	bool SetBuff(DWORD Len);

	int Add(const char * data, DWORD len);
	int Del(DWORD len);

	const char *GetBuff();
	DWORD GetPacketLen();

	void ClearData();

};




class SCF_API SCF : public DiosLock, public Dios_Thread
{
public:
	SCF(void);
	virtual ~SCF();
	HMODULE m_LibHandle;
	Logger *m_pSCFLogger;
	PacketParser m_pPacketParser;
	SCF_TRANSFERTYPE m_TransferType;

	//根路径是SCF路径,pFileName是偏移值，如 "COM\COM2.log"
	void InitSCF(const char *pLogFileName = NULL);

	//设置本地属性 特定通信情况下需要，串口，网络，USB的连接不需要设置
	bool SetSourceAttribute(ResDataObject & Sourceprameters) ;

	//设置连接，参数也由json传过来
	/* -- 串口类型
	{
		"type":"COM",
		"port":"COM1",
		"baudrate":"3200",
		"bytesize":"8",
		"parity":"1",
		"stopbits":"1"
	}
	*/
	/* -- 网络类型
	{
		"type":"TCPIP",
		"ip":"192.168.2.77",
		"port":"2020"
	}
	*/
	void SetBuffersize(DWORD NormalPackSize, DWORD MaxBuffLimit);

	virtual int Connect(ResDataObject & Connectprameters, PacketParser callback, SCF_TRANSFERTYPE TransferType = SCF_NORMAL_TRANSFER, DWORD CommunicateTimeout = 0);
	//断开连接
	virtual void Disconnect();
	//判断是否连接
	virtual bool isConnected() ;
	//获取连接类型，由继承类实现
	virtual const char* GetConnectionType();
	//获取连接参数
	ResDataObject GetConnectionAttributes();

	//发数据
	virtual int SendPacket(const char *pPacket, DWORD length, DWORD timeout);
	virtual int SendPacket(SCFPacket *pPacket, DWORD timeout);

	//读数据
	int ReceivePacket(char *pPacket, DWORD length, DWORD timeout);
	int ReceivePacket(SCFPacket *pPacket, DWORD timeout);

	DWORD GetReceivePacketSize();
	DWORD GetNotifyPacketSize();

	HANDLE GetScfNotifyHandle() ;//获取SCF收到Notify后通知的事件句柄
	////将不需要的数据包存入Notify数据缓存队列
	int QueNotifyPacket(const char *pPacket, DWORD length);
	int QueNotifyPacket(SCFPacket *pPacket);

	//读取Notify数据缓存中的数据包，当SCF处于解锁状态下接收的数据都会放入Notify缓存中，需要调用DeQueNotifyPacket来读取缓存中的数据包，读取成功返回接收数据的实际长度，失败返回SCF_ERR
	int DeQueNotifyPacket(char *pPacket, DWORD length, DWORD timeout);
	int DeQueNotifyPacket(SCFPacket *pPacket, DWORD timeout);
	//SCF的锁
	DWORD SCFLock(DWORD timeout);
	void SCFUnLock();

	//被动掉线事件
	void SetPassiveDisconnectEvt(HANDLE evt);
	void PassiveDisconnected();

	DWORD GetCommunicateTimeout();

protected:

	HANDLE m_PassiveDisconEvt;

	OVERLAPPED m_osRead;
	OVERLAPPED m_osWrite;
	// TODO:  在此添加您的方法。
	virtual int ReadData(char *pPacket, DWORD length, DWORD timeout);
	//virtual int ReadData(SCFPacket *pPacket, DWORD timeout);

	DWORD m_CommunicateTimeout;
	ResDataObject m_ConnectionParams;
	//---------------server part
	DWORD MaxComLen;
	DWORD NormalPackLen;

	DWORD ReadWaitTime;

	SCFBuffer m_RawBuffer;

	SCFPacket* m_pTransferBuffer;//将Receive数据转入Notify
	SCFPacket* m_pRtoNBuffer;//将Receive数据转入Notify

	bool StartSCFServer();//开启读线程
	void StopSCFServer();//关闭读线程

	int ProcessCmd(const char * data, int datalength);

	int ReceivetoNotify();
	int ReceivetoNotify_Ex();

	int WritetoNotify(const char *pPacket, int length);

	virtual bool Exec();


	PVOID m_pNotifybuffer;
	PVOID m_pReceivebuffer;

	HANDLE m_hNotifyhandle;
	HANDLE m_hReceivehandle;

	HANDLE	EventHandleWrite;	// 当命令写入时,发送事件
	HANDLE	EventHandleRead;	// 当读取到命令时,发送事件

	HANDLE	ThreadHandleRead;
	DWORD	ThreadIDRead;		// 读线程ID

};

SCF_C_API SCF* LoadScf(const char *pFilename);
SCF_C_API void UnLoadScf(SCF* pHandle);

typedef SCF * (*GetSCF_Proc)();
typedef void (*ReleaseSCF_Proc)(SCF *);