#include <common/windows.hpp>
#include <common/block.hpp>
#include <common/systime.hpp>
#include <common/filemap.hpp>
#include <common/pview.hpp>
#include <sgi_stl/map.h>

map<int,int> instanceData;

typedef struct tagTICKDATA
{
  float tradePrice;
	float bidPrice;
	float askPrice;
	SYSTEMTIME systemTime;
	bool isTrade;
}TICKDATA;

FileMap fileMap;

void createTickData(Block<TICKDATA> &tickData);

extern "C"
{
	__declspec(dllexport) bool PASCAL GetTicks(char *pTickers,SYSTEMTIME *pStartDate,SYSTEMTIME *pEndDate,char *pHandle);
}

bool APIENTRY DllMain(HANDLE hModule,DWORD reason,LPVOID lpReserved)
{
  switch(reason)
	{
		case DLL_PROCESS_ATTACH:
		  break;
		case DLL_THREAD_ATTACH:
		  instanceData[(int)::GetCurrentThreadId]=int((int*)new FileMap());
//      MessageBox(0,"DLLTEST","DLL_THREAD_ATTACH",MB_OK);
		  break;
		case DLL_THREAD_DETACH:
//		  ::delete (FileMap*)instanceData[(int)::GetCurrentThreadId];
//      MessageBox(0,"DLLTEST","DLL_THREAD_DETACH",MB_OK);
		  break;
		case DLL_PROCESS_DETACH:
			break;
  }
  return TRUE;
}

bool PASCAL GetTicks(char *pTickers,SYSTEMTIME *pStartDate,SYSTEMTIME *pEndDate,char *pDataHandle)
{
  Block<TICKDATA> tickDataBlock;
	PureViewOfFile pureView;

//  DebugBreak();  
	FileMap *pFileMap=(FileMap*)instanceData[(int)::GetCurrentThreadId()];
	if(!pFileMap){pFileMap=new FileMap();instanceData[(int)::GetCurrentThreadId()]=(int)pFileMap;}
  String str=String(pTickers)+String(" ")+SystemTime(*pStartDate).toString()+String(" ")+SystemTime(*pEndDate).toString();
//  MessageBox(0,"GetTicks",str.str(),MB_OK);
  createTickData(tickDataBlock);
	::sprintf(pDataHandle,"%08lx%08lx",(int)GetCurrentProcessId(),(int)GetCurrentThreadId());
	if(!pFileMap->create((char*)pDataHandle,0,tickDataBlock.size()*sizeof(TICKDATA),FileMap::ReadWrite,FileMap::Commit))return false;
	pureView.createView(*pFileMap);
	pureView.write((int)sizeof(TICKDATA));
	pureView.write((int)tickDataBlock.size());
	for(int index=0;index<tickDataBlock.size();index++)
	{
	  TICKDATA &tickData=tickDataBlock[index];
		pureView.write(tickData.tradePrice);
		pureView.write(tickData.bidPrice);
		pureView.write(tickData.askPrice);
		pureView.write((unsigned char*)&tickData.systemTime,sizeof(tickData.systemTime));
		pureView.write(tickData.isTrade);
	}
	pureView.destroyView();
	return true;
}

void createTickData(Block<TICKDATA> &tickDataBlock)
{
  tickDataBlock.remove();

	tickDataBlock.insert(&TICKDATA());
	TICKDATA *pTickData=&tickDataBlock[tickDataBlock.size()-1];
	pTickData->tradePrice=100;
	pTickData->bidPrice=0;
	pTickData->askPrice=0;
  pTickData->systemTime=SystemTime(2003,5,1).getSYSTEMTIME();
	pTickData->isTrade=true;
	tickDataBlock.insert(&TICKDATA());
	pTickData=&tickDataBlock[tickDataBlock.size()-1];
	pTickData->tradePrice=0;
	pTickData->bidPrice=101.90;
	pTickData->askPrice=0;
  pTickData->systemTime=SystemTime(2003,5,1).getSYSTEMTIME();
	pTickData->isTrade=false;
}