#include <unistd.h>
#include <pthread.h>
#include <TGApplication.h>

#include "fcal11view.h"
#include "MyProcessor.h"

int GO = 0; // 1=continuously display events 0=wait for user

TCanvas *maincanvas=NULL;
extern JApplication *japp;
JEventLoop *eventloop =NULL;
MyProcessor *myproc = NULL;

void ParseCommandLineArguments(int &narg, char *argv[], JApplication *japp);
void Usage(JApplication *japp);

//-------------------
// main
//-------------------
int main(int narg, char *argv[])
{
	// Parse the command line arguments
	ParseCommandLineArguments(narg, argv, japp);
	
	// Instantiate a JApplication object. This has to be done BEFORE
	// creating the TApplication object since that modifies the argument list.
	japp = new JApplication(narg, argv);
	
	// Create a ROOT TApplication object
	TApplication app("FCAL 2011 Beam Test Data Viewier", &narg, argv);
	
	// This is done AFTER creating the TApplication object so when the
	// init routine is called, the window will be mapped and it can
	// draw the detectors.
	myproc = new MyProcessor();
	japp->AddProcessor(myproc);

	// Call the JApplication's Init() routine to attach any plugins
	japp->Init();

	// Create the JEventLoop object explicitly.
	eventloop = new JEventLoop(japp);
	eventloop->SetAutoFree(0); // prevent auto-freeing of event after OneEvent is called

	// We need to re-call myproc->init here (it was already called from the japp->Init()
	// call above). This is because the previous call was done before the JEventLoop
	// object existed and so the hdv_mainframe object wasn't created etc... We have
	// to call japp->Init() before instantiated the JEventLoop so that the plugins
	// are attached and the JEventLoop can capture the full list of factories and
	// processors.
	myproc->init();

	// Process the first event
	jerror_t err =eventloop->OneEvent();

	// Hand control to the ROOT "event" loop
	japp->GetJParameterManager()->PrintParameters();
	app.SetReturnFromRun(true);
	if(err==NOERROR)app.Run();
	
	// Clean-up the app (call erun and fini methods, delete sources)
	//japp->Fini(); // This now actually done in hdv_mainframe::DoQuit()
		
	if(japp)delete japp;

	return 0;
}


//-----------
// ParseCommandLineArguments
//-----------
void ParseCommandLineArguments(int &narg, char *argv[], JApplication *japp)
{
	if(narg==1)Usage(japp);

	for(int i=1;i<narg;i++){
		if(argv[i][0] != '-')continue;
		switch(argv[i][1]){
			case 'h':
				Usage(japp);
				break;
		}
	}
}

//-----------
// Usage
//-----------
void Usage(JApplication *japp)
{
	cout<<"Usage:"<<endl;
	cout<<"       fcal11view [options] source1 source2 ..."<<endl;
	cout<<endl;
	cout<<"Graphical viewer for browsing data in a file from the"<<endl;
	cout<<"2011 FCAL Beam Test."<<endl;
	cout<<endl;
	cout<<"Options:"<<endl;
	cout<<endl;
	cout<<"   -h        Print this message"<<endl;
	cout<<endl;
	cout<<"JANA options:"<<endl;
	cout<<endl;
	japp->Usage();
	cout<<endl;

	exit(0);
}