#pragma once

namespace scdriver
{
/**************************************
 *
 *  class: C B u l k I m p o r t
 * 
 **************************************
 *
 * Functional description
 *	
 *	Export table data to a file located
 *	on clients machine
 **************************************/
class __declspec( dllexport ) CBulkImport
{
public:
	CBulkImport(void);
	~CBulkImport(void);

	/**************************************
	 *
	 *  function: I m p o r t
	 * 
	 **************************************
	 *
	 * Functional description
	 *
	 *	export table's data to file
	 **************************************/
	void Import(CConnection	*conn, const char *table, const char *format);

	/**************************************
	 *
	 *  function: O n R e a d
	 * 
	 **************************************
	 *
	 * Functional description
	 *
	 *	callback read data to import
	 **************************************/
	virtual void OnRead(void *data, int &size);

private:
	CConnection *m_conn;
};

/**************************************
 *
 *  class: C B u l k I m p o r t F i l e
 * 
 **************************************
 *
 * Functional description
 *	
 *	Import data from file to the table
 **************************************/
class __declspec( dllexport ) CBulkImportFile: public CBulkImport
{
public:

	int get_class_size();

	CBulkImportFile(void);
	~CBulkImportFile(void);

	/**************************************
	 *
	 *  function: I m p o r t
	 * 
	 **************************************
	 *
	 * Functional description
	 *
	 *	import table's data from file
	 **************************************/
	void Import(CConnection	*conn, const char *table, const char *filename, const char *format, BULK_TRANSFER_CALLBACK *callback = 0);

	/**************************************
	*
	*  function: O n R e a d
	* 
	**************************************
	*
	* Functional description
	*
	*	save output
	**************************************/
	virtual void OnRead(void *data,int &size);

private:
	unsigned long m_err; // write to file error code
	HANDLE		  m_hfile;
	unsigned long m_total;// total number of bytes transferred to server
	BULK_TRANSFER_CALLBACK *m_transfer;
};
}