#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/wait.h>

#include <libxfce4ui/libxfce4ui.h>

static XfceSMClient *sm_client = NULL;
pid_t pid;
int timeout=10;

void alarm_handler(int sig)
{
	g_print("Timeout! killing child\n");
	kill(pid,9);
}

static gboolean
session_die(gpointer user_data)
{
	char * args[] = {NULL};
	int pts;

	pid = fork();

	if(pid==0)
	{
		/* CHILD */
		execv("/usr/bin/xfce-moving-profile-stop.py",args);
	}
	else
	{
		if(pid>0)
		{
			/* FATHER */
			g_print("Succesfully spawned child process: %d\n",pid);
			alarm(timeout);
			wait(&pts);
			g_print("Child process terminated\n");
			signal(SIGALRM,SIG_IGN);
		}
		else
		{
			/* ERROR */
			g_printerr("session_die():Cannot spawn child process\n");
		}
	}


	//gtk_main_quit(); 
	return FALSE;
}

void session_init()
{
	pid_t pid_init;
	char * args[]={NULL};

	pid_init=fork();

	if(pid_init==0)
	{
		/* CHILD */
		execv("/usr/bin/xfce-moving-profile-start.py",args);
	}
	else
	{
		if(pid_init>0)
		{
			/* FATHER */
			g_print("Succesfully spawned child process: %d\n",pid_init);
		}
		else
		{
			/* ERROR */
			g_printerr("session_init():Cannot spawn child process\n");
		}
	}
}

int
main(int argc, char **argv)
{
	GError *error = NULL;

	g_type_init();
	sm_client = xfce_sm_client_get();
	xfce_sm_client_set_restart_style(sm_client, XFCE_SM_CLIENT_RESTART_IMMEDIATELY);
	xfce_sm_client_set_priority(sm_client, XFCE_SM_CLIENT_PRIORITY_DESKTOP);
	g_set_prgname("xfce-moving-profile");
	g_signal_connect(sm_client, "quit-requested", G_CALLBACK(session_die), NULL);

	if(!xfce_sm_client_connect(sm_client, &error) && error) {
		g_printerr("Failed to connect to session manager: %s\n", error->message);
		g_clear_error(&error);
	}

	if(argc>1)
	{
		int tmp =atoi(argv[1]);
		
		if(tmp>0 && tmp<30)
		{
			g_print("Using custom timeout:%d\n",tmp);
			timeout=tmp;
		}
		else
		{
			g_printerr("Invalid timeout value:%s\n",argv[1]);
		}	
	}

	session_init();
	signal(SIGALRM,alarm_handler);
	gtk_main();

	return 0;
}