/**
 * SpiceKernelMgr.hh
 *
 *  Created on: 08 jul. 2016
 *      Author: AKKA IS
 */

#ifndef SPICEKERNELMGR_HH_
#define SPICEKERNELMGR_HH_

#include <string>

#include "dsgpatt_Singleton.hh"
#include "SpiceKernelConfig.hh"
#include "SpiceKernelLogger.hh"

namespace AMDA {
namespace SpiceKernel {

/**
 * @class SpiceKernelMgr
 * @brief Singleton to manage spice kernel
 * @details
 */
class SpiceKernelMgr : public ::Singleton<SpiceKernelMgr> {
public:
	template<typename T>
	bool transform(const char* fromFrame, const char* toFrame, bool isPosition, double time, const std::vector<T>& input, std::vector<T>& output) {
		if (!SpiceKernelMgr::getInstance()->loadDataFilesForFrameName(fromFrame)) {
			LOG4CXX_ERROR(gLogger, "SpiceKernelMgr::transform - Error to load data files for frame " << fromFrame);
			return false;
		}

		if (!SpiceKernelMgr::getInstance()->loadDataFilesForFrameName(toFrame)) {
			LOG4CXX_ERROR(gLogger, "SpiceKernelMgr::transform - Error to load data files for frame " << toFrame);
			return false;
		}

		double et = timeStampToEt(time);

		double rotation[3][3];
		if (!getRotationMatrix(fromFrame, toFrame, et, rotation))
			return false;

		double translation[3] = {0,0,0};
		if (!getTranslation(fromFrame, toFrame, isPosition, et, translation))
			return false;



		double vin[3] = {(double)input[0] - translation[0], (double)input[1] - translation[1], (double)input[2] - translation[2]};
		double vout[3];

		if (!computeTransformation(vin, translation, rotation, vout))
			return false;

		output.reserve(3);
		output[0] = (T)vout[0];
		output[1] = (T)vout[1];
		output[2] = (T)vout[2];

		return true;
	}

	double timeStampToEt(double timeStamp);

	double timeStampToJulianDate(double timeStamp);

protected:
	friend class ::Singleton<SpiceKernelMgr>;

	SpiceKernelMgr();

	virtual ~SpiceKernelMgr();

private:
	void loadConfig();

	int getBodyCenterFromFrameName(const char *frameName);

	int getFrameIdFromFrameName(const char *frameName);

	bool isDataFileLoaded(const char* filePath);

	bool loadListOfDataFiles(std::list<std::string> dataFilesList);

	bool loadDataFilesForFrameName(const char *frameName);

	bool loadGenericDataFiles();

	bool getRotationMatrix(const char* fromFrame, const char* toChar, double et, double rotate[3][3]);

	bool getTranslation(const char* fromFrame, const char* toFrame, bool isPosition, double et, double translation[3]);

	bool computeTransformation(double input[3], double translation[3], double rotation[3][3], double output[3]);

	bool _genericDataFilesLoaded;

	boost::shared_ptr<SpiceKernelConfig> _config;

	std::list<std::string> _loadedDataFiles;

	std::list<std::string> _DataFilesLoadedForFrameName;

	std::map<std::string, int> _bodyCenterFromFrameNameMap;

	std::map<std::string, int> _frameIdFromFrameNameMap;


};


} /* SpiceKernelMgr */
} /* AMDA */

#endif // SPICEKERNELMGR_HH_