/*
 * Copyright 2024 Google LLC
 *
 * 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.
 */

#pragma once

#include <stdbool.h>

#include <bluetooth/bluetooth_types.h>

typedef struct {
  uint16_t bpm;
  bool is_on_wrist;
} BleHrmServiceMeasurement;

//! @return True if the BT driver lib supports exposing the GATT HRM service.
bool bt_driver_is_hrm_service_supported(void);

//! Adds or removes the HRM service from the GATT database, notifying any connected devices
//! by sending a "Service Changed" indication for the mutated handle range.
void bt_driver_hrm_service_enable(bool enable);

//! Sends the Heart Rate Measurement to all subscribed & connected devices.
void bt_driver_hrm_service_handle_measurement(const BleHrmServiceMeasurement *measurement,
                                              const BTDeviceInternal *permitted_devices,
                                              size_t num_permitted_devices);

//! Called when a connected device (un)subscribes to the GATT HRM service's "Heart Rate Measurement"
//! characteristic.
extern void bt_driver_cb_hrm_service_update_subscription(const BTDeviceInternal *device,
                                                         bool is_subscribed);