/* (C) 2021 by sysmocom - s.f.m.c. GmbH <info@sysmocom.de>
 * Author: Oliver Smith <osmith@sysmocom.de>
 * All Rights Reserved
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Affero 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/lienses/>.
 *
 */

#include "config.h"
#include <unistd.h>
#include <osmocom/vty/command.h>
#include <osmocom/vty/logging.h>
#include <osmocom/vty/telnet_interface.h>
#include <osmocom/bsc_nat/bsc_nat.h>
#include <osmocom/bsc_nat/vty.h>

static struct cmd_node bsc_nat_node = {
	BSC_NAT_NODE,
	"%s(config-bsc-nat)# ",
	1,
};

DEFUN(cfg_bsc_nat,
      cfg_bsc_nat_cmd,
      "bsc-nat", "Configure the BSC NAT\n")
{
	OSMO_ASSERT(g_bsc_nat);
	vty->index = g_bsc_nat;
	vty->node = BSC_NAT_NODE;

	return CMD_SUCCESS;
}

static int config_write_bsc_nat(struct vty *vty)
{
	vty_out(vty, "bsc-nat%s", VTY_NEWLINE);
	vty_out(vty, " cs7-instance-cn %u%s", g_bsc_nat->cn.sccp_inst->ss7_id, VTY_NEWLINE);
	vty_out(vty, " cs7-instance-ran %u%s", g_bsc_nat->ran.sccp_inst->ss7_id, VTY_NEWLINE);

	return CMD_SUCCESS;
}

#define SS7_REF_STR "SS7 instance reference number\n"

DEFUN(cfg_cs7_instance_cn,
      cfg_cs7_instance_cn_cmd,
      "cs7-instance-cn <0-15>",
      "Set SS7 to be used to connect to CN-side\n" SS7_REF_STR)
{
	g_bsc_nat->cn.sccp_inst->ss7_id = atoi(argv[0]);
	return CMD_SUCCESS;
}

DEFUN(cfg_cs7_instance_ran,
      cfg_cs7_instance_ran_cmd,
      "cs7-instance-ran <0-15>",
      "Set SS7 to be used to connect to RAN-side\n" SS7_REF_STR)
{
	g_bsc_nat->ran.sccp_inst->ss7_id = atoi(argv[0]);
	return CMD_SUCCESS;
}

void bsc_nat_vty_init(void)
{
	install_element(CONFIG_NODE, &cfg_bsc_nat_cmd);
	install_node(&bsc_nat_node, config_write_bsc_nat);
	install_element(BSC_NAT_NODE, &cfg_cs7_instance_cn_cmd);
	install_element(BSC_NAT_NODE, &cfg_cs7_instance_ran_cmd);
}