#ifndef _ST_FACE_CACHE_H_
#define _ST_FACE_CACHE_H_

#include <string>
#include "face_daemon_proto.h"

#define FDP_FDR_INVALID FDP_FaceDetectResult(STFS_DBID_INVALID, 0, 0)
#define ENABLE_AUTO_CREATE_STFACEDB
#define ENABLE_DETECT_IN_NEGATIVE_DBID
//#define ENABLE_ADD_TO_TEMPDB_WHEN_NOT_DETECT
#define RESULT_CONFIDENCE 0.70
#define TEMPDB_FACE_COUNT_MAX 10

enum STFSpecialDBID
{
	STFS_DBID_INVALID = 0,
	STFS_DBID_VISITOR_1 = -1,
	STFS_DBID_TEMPDB_1 = -1000
};

struct STFaceImage;

class STFaceCache
{
public:
	STFaceCache(const std::string& _stfacedbPath);
	~STFaceCache();
	
	bool init();
	void finit();
	
	bool load_dbs();
	void close_dbs();
	FDP_FaceDetectResult detect(const STFaceImage& img);
	FDP_FaceDetectResult add(const STFaceImage& img);
	void search(const STFaceImage& img, fdr_vec_t& topResult);
	FDP_FaceDetectResult compare(const STFaceImage& img1, const STFaceImage& img2);
	void delete_db(int dbid);
	
	//#todo need a delete img, if business not linked faceid and its personid
	// they can delete it and save/find again!
	
private:
	FDP_FaceDetectResult detect_neg(const STFaceImage& img);

private:
	const std::string stfacedbPath;
	const std::string stfaceModels;
	void* _dbContext;
	void* _cacheContext;
	
	int tempdbFaceCount;
};

#endif