/**************************************************************************
 *                          ___ __  __ ___ _ __                           *
 *                         / _ \\ \/ // _ \ '_ \                          *
 *                        | (_) |>  <|  __/ | | |                         *
 *                         \___//_/\_\\___|_| |_|                         *
 *                                                                        *
 *                             The card game                              *
 *                                                                        *
 *  Copyright (C) 2011, Reiner Herrmann <reiner@reiner-h.de>              *
 *                      Mario Kilies <MarioKilies@GMX.net>                *
 *                                                                        *
 *  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 3 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, see <http://www.gnu.org/licenses/>.  *
 *                                                                        *
 **************************************************************************/

#ifndef OXEN_NET_H
#define OXEN_NET_H

#include <stdint.h>
#include <stdbool.h>

// Specifies the maximum payload length in bytes
#define NET_MSG_MAX_PAYLOAD_LENGTH	255

// Offsets within the receive buffer to easily access the data fields of the received message
#define NET_MSG_OFFSET_TYPE		0
#define NET_MSG_OFFSET_PAYLOAD_LENGTH	1
#define NET_MSG_OFFSET_PAYLOAD		2

typedef enum
{
	// Specify message type identifiers here
	msg_type_hello_c		= 0x0,
	msg_type_hello_s		= 0x1,
	msg_type_start_game		= 0x2,
	msg_type_deal_hand		= 0x3,
	msg_type_initial_stacks		= 0x4,
	msg_type_selected_card		= 0x5,
	msg_type_selected_card_all	= 0x6,
	msg_type_selected_stack_c	= 0x7,
	msg_type_selected_stack_s	= 0x8,
	msg_type_next_action		= 0x9,
} msg_type_t;

// Header format
typedef struct
{
	uint8_t type;
	uint8_t payload_length;
} msg_header_t;

// Message format
typedef struct
{
	msg_header_t hdr;
	uint8_t *payload;
} msg_t;

// generic network functions
bool net_recv(const int sock, const msg_type_t wanted);
bool net_send(const int sock, const msg_type_t type, const void *data);

#endif // OXEN_NET_H