// Author: David Lawrence  August 23, 2014
//
//
// hdmon.cc
//

#include <DRootSpy.h>

#include "DANA/DApplication.h"
using namespace std;

void Usage(JApplication &app);


//-----------
// main
//-----------
int main(int narg, char *argv[])
{
	// Instantiate an event loop object
	DApplication app(narg, argv);

	if(narg<=1)Usage(app);
	
	// Start RootSpy thread giving it out JApplication's rwlock
	// (to get pointer to it, we must lock and then unlock it)
	app.RootReadLock();
	pthread_rwlock_t *root_rwlock = app.RootUnLock();
	DRootSpy *rs = new DRootSpy(root_rwlock);
	gROOTSPY_PROGRAM_NAME = "hdmon";
	
	// sim-recon contains a large number of histograms to hold
	// covariance matrices. Filter those from responses so they
	// are not seen by remote processes.
	rs->AddNameFilter("covariance_");
	rs->PrintNameFilters();

	// hdmon runs in "ONLINE mode" by default. To make it easy to
	// cut and paste this, create the parameter with SetDefaultParameter
	// but then change the value to be true (this avoids warnings about
	// mismatched default values from plugins that will set the default
	// value to "false".
	bool ONLINE_MODE = false;
	gPARMS->SetDefaultParameter("ONLINE_MODE", ONLINE_MODE, "Sets online mode so plugins may reduce bin sizes or restrict which histograms are defined.");
	gPARMS->SetParameter("ONLINE_MODE", true);
	
	// Make the number of respawns available as a configuration parameter
	// so janactl can pass it to hdmongui.
	int Nrespawns = 0;
	const char *HDLOG_NUM_RESPAWNS = getenv("HDLOG_NUM_RESPAWNS");
	if(HDLOG_NUM_RESPAWNS) Nrespawns = atoi(HDLOG_NUM_RESPAWNS);
	gPARMS->SetDefaultParameter("HDLOG_NUM_RESPAWNS", Nrespawns, "Number of times hdlog has had to respawn this process");

	// Run though all events, calling our event processor's methods
	app.Run(NULL, 1);
	
	delete rs;
	
	// If the exit code is 10, it may mean corrupted data was encountered
	// by the parser. In this case, run the corrupt_data_alarm_set script
	// to set an alarm through ActiveMQ->EPICS to notify shift workers
	if(app.GetExitCode() == 10 ) system("corrupt_data_alarm_set");
	
	return app.GetExitCode();
}

//-----------
// Usage
//-----------
void Usage(JApplication &app)
{
	cout<<endl;
	cout<<"Usage:"<<endl;
	cout<<"    hdmon [options] source1 source2 source3 ..."<<endl;
	cout<<endl;
	app.Usage();
	cout<<endl;
	
	exit(0);
}