/** @file
 *  @brief DIS Service sample
 */

/*
 * Copyright (c) 2016 Intel Corporation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include <stdint.h>
#include <stddef.h>
#include <string.h>
#include <errno.h>
#include <misc/printk.h>
#include <misc/byteorder.h>
#include <zephyr.h>

#include <bluetooth/bluetooth.h>
#include <bluetooth/hci.h>
#include <bluetooth/conn.h>
#include <bluetooth/uuid.h>
#include <bluetooth/gatt.h>

static const char *dis_model;
static const char *dis_manuf;

static ssize_t read_model(struct bt_conn *conn,
			  const struct bt_gatt_attr *attr, void *buf,
			  uint16_t len, uint16_t offset)
{
	return bt_gatt_attr_read(conn, attr, buf, len, offset, dis_model,
				 strlen(dis_model));
}

static ssize_t read_manuf(struct bt_conn *conn,
			  const struct bt_gatt_attr *attr, void *buf,
			  uint16_t len, uint16_t offset)
{
	return bt_gatt_attr_read(conn, attr, buf, len, offset, dis_manuf,
				 strlen(dis_manuf));
}

/* Device Information Service Declaration */
static struct bt_gatt_attr attrs[] = {
	BT_GATT_PRIMARY_SERVICE(BT_UUID_DIS),
	BT_GATT_CHARACTERISTIC(BT_UUID_DIS_MODEL_NUMBER, BT_GATT_CHRC_READ),
	BT_GATT_DESCRIPTOR(BT_UUID_DIS_MODEL_NUMBER, BT_GATT_PERM_READ,
			   read_model, NULL, NULL),
	BT_GATT_CHARACTERISTIC(BT_UUID_DIS_MANUFACTURER_NAME,
			       BT_GATT_CHRC_READ),
	BT_GATT_DESCRIPTOR(BT_UUID_DIS_MANUFACTURER_NAME, BT_GATT_PERM_READ,
			   read_manuf, NULL, NULL),
};

void dis_init(const char *model, const char *manuf)
{
	dis_model = model;
	dis_manuf = manuf;

	bt_gatt_register(attrs, ARRAY_SIZE(attrs));
}