/*
 *  server_example5.c
 *
 *  Copyright 2013 Michael Zillgith
 *
 *  This file is part of libIEC61850.
 *
 *  libIEC61850 is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  libIEC61850 is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with libIEC61850.  If not, see <http://www.gnu.org/licenses/>.
 *
 *  See COPYING file for the complete license text.
 */

#include "iec61850_server.h"
#include "hal_thread.h"
#include <signal.h>
#include <stdlib.h>
#include <stdio.h>

#include "static_model.h"

/* import IEC 61850 device model created from SCL-File */
extern IedModel iedModel;

static int running = 0;
static IedServer iedServer = NULL;

void sigint_handler(int signalId)
{
	running = 0;
}

void
observerCallback(DataAttribute* dataAttribute, ClientConnection connection)
{
    if (dataAttribute == IEDMODEL_GenericIO_GGIO1_NamPlt_vendor) {
        printf("GGIO.NamPlt.vendor changed to %s\n",
                MmsValue_toString(dataAttribute->mmsValue));
    }
    else if (dataAttribute == IEDMODEL_GenericIO_GGIO1_NamPlt_swRev) {
        printf("GGIO.NamPlt.swRef changed to %s\n",
                MmsValue_toString(dataAttribute->mmsValue));
    }
}

int main(int argc, char** argv) {

	iedServer = IedServer_create(&iedModel);

	/* MMS server will be instructed to start listening to client connections. */
	IedServer_start(iedServer, 102);

	/* Instruct the server that we will be informed if a clients writes to a
	 * certain variables we are interested in.
	 */
	IedServer_observeDataAttribute(iedServer, IEDMODEL_GenericIO_GGIO1_NamPlt_vendor,
	        observerCallback);

	IedServer_observeDataAttribute(iedServer, IEDMODEL_GenericIO_GGIO1_NamPlt_swRev,
	        observerCallback);

	if (!IedServer_isRunning(iedServer)) {
		printf("Starting server failed! Exit.\n");
		IedServer_destroy(iedServer);
		exit(-1);
	}

	running = 1;

	signal(SIGINT, sigint_handler);

	while (running) {
		Thread_sleep(1);
	}

	/* stop MMS server - close TCP server socket and all client sockets */
	IedServer_stop(iedServer);

	/* Cleanup - free all resources */
	IedServer_destroy(iedServer);
} /* main() */