#ifndef _Timer
#define _Timer

/* Utility for timing in c++ */

class Timer
{

	public:

	int PrintLevel;
	clock_t StartTime;
	clock_t StopTime;
	double CpuTimeUsed;
	string Name;

	/* Constructor 1 */
	Timer()
	{
		PrintLevel = 1;
		CpuTimeUsed = 0.0;
		Name = "NoName";
	}

	/* Constructor 2 */
	Timer(int PrintLevel) : PrintLevel(PrintLevel)
	{
		CpuTimeUsed = 0.0;
		Name = "NoName";
	}

	/* Set the Start Time */
	void Start()
	{
		if(PrintLevel) cout << "Start Timer " << Name << "\n";
		StartTime = clock();
	}

	void Pause()
	{
		if(PrintLevel) cout << "Pause Timer " << Name << "\n";
		StopTime = clock();
		CpuTimeUsed += ((double)(StopTime - StartTime)) / CLOCKS_PER_SEC;
	}

	/* Set the End Time */
	double Stop()
	{
		StopTime = clock();
		CpuTimeUsed += ((double)(StopTime - StartTime)) / CLOCKS_PER_SEC;
		if(PrintLevel) cout << "End Timer " << Name << ". CPU Time Used: " << CpuTimeUsed << "s (" << CpuTimeUsed/60.0 << "m)";
		double Temp = CpuTimeUsed;
		CpuTimeUsed = 0.0;
		return Temp;
	}

};

#endif