/**

 * @file unicast_fsm.c

 * @brief Unicast client state machine

 * @note Copyright (C) 2018 Richard Cochran <richardcochran@gmail.com>

 *

 * This program 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 2 of the License, or

 * (at your option) any later version.

 *

 * This program 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 this program; if not, write to the Free Software Foundation, Inc.,

 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA.

 */

#include "unicast_fsm.h"

enum unicast_state unicast_fsm(enum unicast_state state, enum unicast_event ev)

{

	enum unicast_state next = state;

	switch (state) {

	case UC_WAIT:

		switch (ev) {

		case UC_EV_GRANT_ANN:

			next = UC_HAVE_ANN;

			break;

		case UC_EV_SELECTED:

		case UC_EV_GRANT_SYDY:

		case UC_EV_UNSELECTED:

		case UC_EV_CANCEL:

			break;

		}

		break;

	case UC_HAVE_ANN:

		switch (ev) {

		case UC_EV_GRANT_ANN:

			break;

		case UC_EV_SELECTED:

			next = UC_NEED_SYDY;

			break;

		case UC_EV_GRANT_SYDY:

		case UC_EV_UNSELECTED:

			break;

		case UC_EV_CANCEL:

			next = UC_WAIT;

			break;

		}

		break;

	case UC_NEED_SYDY:

		switch (ev) {

		case UC_EV_GRANT_ANN:

		case UC_EV_SELECTED:

			break;

		case UC_EV_GRANT_SYDY:

			next = UC_HAVE_SYDY;

			break;

		case UC_EV_UNSELECTED:

			next = UC_HAVE_ANN;

			break;

		case UC_EV_CANCEL:

			next = UC_WAIT;

			break;

		}

		break;

	case UC_HAVE_SYDY:

		switch (ev) {

		case UC_EV_GRANT_ANN:

		case UC_EV_SELECTED:

		case UC_EV_GRANT_SYDY:

			break;

		case UC_EV_UNSELECTED:

			next = UC_HAVE_ANN;

			break;

		case UC_EV_CANCEL:

			next = UC_WAIT;

			break;

		}

		break;

	}

	return next;

}