#include "NBody.hpp"

//----------------------
 extern int numBodies;					

 void* me;								// Pointing to NBody class; 

 FILE *snapshotsFile, *diagnosticsFile;	// Represent the files that will retain the snapshots 
										// and diagnostics;
 FILE *inputDataFile;					// Represents the file for inputData for paricles;

//----------------------
extern void startOpenGLSimulation(int argc, char * argv[]);


/////////////////////////////////// MAIN Func \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
//
// Here starts the application
//
/////////////////////////////////// MAIN Func \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\

int main(int argc, char * argv[])
{
    NBody clNBody("OpenCL NBody");
    me = &clNBody;
	
	//--------------------------------
	// Open file for input data if this option is
	// activated:
	if (readInputData){
		inputDataFile = fopen(inputDataFileName, "r");
		if(inputDataFile == NULL)
		{
			std::cout << "Error opening inputData file." << std::endl;
			return 1;
		}
	}

	//--------------------------------
	// Open files for output data:
	snapshotsFile = fopen(snapshotFileName, "w");
	if(snapshotsFile == NULL)
	{
		std::cout << "Error opening snapshots file." << std::endl;
		return 1;
	}

	diagnosticsFile = fopen(diagnosticFileName, "w");
	if(diagnosticsFile == NULL)
	{
		std::cout << "Error opening diagnostics file." << std::endl;
		return 1;
	}

	//--------------------------------
	// Initialize particles:
	if(clNBody.setupNBody()!= 0){		// SDK_SUCCESS == 0;
        return 1;
	}

	//--------------------------------
	// Initialize OpenCL env:
	if(clNBody.setupCL()!= 0){			// SDK_SUCCESS == 0;
        return 1;
	}

	//--------------------------------
	// Build CL kernel program executable:
	if(clNBody.setupCLProgram() != 0){	// SDK_SUCCESS == 0;
        return 1;
	}

	//--------------------------------
    // Create kernels and set arguments to Kernels:
	if(clNBody.setupCLKernels()!= 0){	// SDK_SUCCESS == 0;
		return 1;
    }

	//--------------------------------
	// Start the simulation:
	std::cout << std::endl;
	std::cout << "============================" << std::endl;
	std::cout << "Simulation started..." << std::endl;
	std::cout << std::endl;

	time ( &rawtime );
	timeinfo = localtime ( &rawtime );
	std::cout << "Start time and date: " << asctime (timeinfo) << std::endl;

	startOpenGLSimulation(argc, argv);

	//--------------------------------
	// Clean memory allocation:
	if(clNBody.cleanup() != 0){			// SDK_SUCCESS == 0;
		return 1;
	}

	fclose(snapshotsFile);
	fclose(diagnosticsFile);

	return 0;
}