/*
 * AEvent.cpp
 *
 *  Created on: Dec 28, 2016
 *      Author: daria
 */

#include "AEvent.h"

AEvent::AEvent() : fNPoints(1024) {	//fNPoints is number of points in one event, 1024 or 1000

	Init();
	Reset();

}

AEvent::AEvent(const Int_t npoints) : fNPoints(npoints) {

	Init();
	Reset();
}

AEvent::~AEvent() {
	// TODO Auto-generated destructor stub
	delete gSignal;
	delete gCFD;
	delete fInputEvent;
}

void AEvent::SetRawDataFile(const char* inprawfile, const char* treename) {

	TString iFileName = inprawfile;
	TFile *fraw = new TFile(iFileName.Data());
	if ( !fraw->IsOpen() ) {
		Error("SetRawDataFile", "File %s was not opened and won't be processed", iFileName.Data());
	}
	TTree *traw = (TTree*)fraw->Get(treename);
	if (!traw) {
		Error("SetRawDataFile", "Tree %s was not found in file %s", treename, iFileName.Data());
	}
}

void AEvent::ProcessEvent() {

	if (fInputEvent == NULL) {
		Warning("AEvent::ProcessEvent", "Input event wasn't set. Function won't be processed.");
		return;
	}

	const Double_t *amp = fInputEvent->GetAmp();
	const Double_t *time = fInputEvent->GetTime();

	for(Int_t j = 0; j < fNPoints; j++) {
		fAmpPos[j] = amp[j]*(-1.);
		fTime[j] = time[j];
	}

	Double_t maxAmp = 0.;
	Double_t maxAmpT = 0.;

	maxAmp = fAmpPos[0];
	for(Int_t j=0; j < fNPoints; j++) {
		if(fAmpPos[j] > maxAmp) {
			maxAmp = fAmpPos[j];
			maxAmpT = fTime[j];
		}
	}
	fAmpMax = maxAmp;
	fTimeAmpMax = maxAmpT;

	SetGraphs();

	SetCFD();

	return;

}

void AEvent::Reset() {

	for (Int_t i = 0; i < fNPoints; i++) {
		fAmpPos[i] = 0;
		fTime[i] = 0;
		fAmpCFD[i] = 0;
	}

	fAmpMax = 0.;
	fTimeAmpMax = 0.;
}

void AEvent::SetInputEvent(RawEvent** event) {

	if (event == 0) {
		Warning("AEvent::SetInputEvent", "Input event was set as 0.");
	}
	fInputEvent = *event;

}

void AEvent::Init() {

	fAmpPos.Set(fNPoints);
	fTime.Set(fNPoints);
	fAmpCFD.Set(fNPoints);

	gSignal = new TGraph();
	gCFD = new TGraph();
	fInputEvent = 0;

}

void AEvent::SetGraphs() {

	gSignal->Set(fNPoints);

	for (Int_t i=0; i<fNPoints; i++) {
		gSignal->SetPoint(i, fTime[i], fAmpPos[i]);
	}

	return;
}

void AEvent::SetCFD(/*Double_t c, Int_t td*/) {

	gCFD->Set(fNPoints);
	Double_t c = 0.5; //attenuation coefficient
	Int_t td = 5;	//time of delay in points
	Double_t maxCFD, minCFD, imax, imin, tmax, tmin, level;
	maxCFD = 0.;
	minCFD = 0.;
	level = 100.;
	for (Int_t i=0; i<fNPoints; i++) {

	//CFD method
		if(i>td) {
			fAmpCFD[i] = fAmpPos[i]*c*(-1);
			fAmpCFD[i] = fAmpCFD[i] + fAmpPos[i - td];
			gCFD->SetPoint(i, fTime[i], fAmpCFD[i]);
		}

	//point for max CFD amplitude	
		if(fAmpCFD[i] > maxCFD) {
				maxCFD = fAmpCFD[i];
				imax = i;
				tmax = fTime[i];
		}

	//point for min CFD amplitude	
		if(fAmpCFD[i] < minCFD) {
				minCFD = fAmpCFD[i];
				imin = i;
				tmin = fTime[i];	
		}

	}

	//finding "zero" of CFD amplitude
	for(Int_t j = imin; j < imax; j++) {   
		if(abs(fAmpCFD[j]) < level) {level = abs(fAmpCFD[j]); fCFD = fTime[j];}	
	}

	return;


}