tlbmc/sensors/nic_sensor.h

#ifndef THIRD_PARTY_MILOTIC_EXTERNAL_CC_TLBMC_SENSORS_NIC_SENSOR_H_
#define THIRD_PARTY_MILOTIC_EXTERNAL_CC_TLBMC_SENSORS_NIC_SENSOR_H_

#include <memory>
#include <optional>
#include <string>

#include "absl/container/flat_hash_map.h"
#include "absl/functional/any_invocable.h"
#include "absl/status/statusor.h"
#include "boost/asio.hpp"  //NOLINT: boost::asio is commonly used in BMC
#include "nic_telemetry_config.pb.h"
#include "tlbmc/hal/nic_veeprom/interface.h"
#include "sensor.pb.h"
#include "tlbmc/sensors/sensor.h"

namespace milotic_tlbmc {

class NicSensor : public Sensor,
                  public std::enable_shared_from_this<NicSensor> {
 private:
  class Token;

 public:
  static absl::StatusOr<std::shared_ptr<NicSensor>> Create(
      const std::string& sensor_name,
      nic_veeprom::NicTelemetryName telemetry_name, SensorUnit sensor_unit,
      const EntityCommonConfig& entity_common_config,
      const ThresholdConfigs& threshold_configs,
      const ReadingRangeConfigs& reading_range_configs,
      const std::shared_ptr<boost::asio::io_context>& io_context,
      const nic_veeprom::Accessor& accessor,
      std::optional<NotificationCb> on_batch_notify = std::nullopt);

  NicSensor(Token token, const std::string& sensor_name,
            nic_veeprom::NicTelemetryName telemetry_name,
            SensorUnit sensor_unit,
            const EntityCommonConfig& entity_common_config,
            const ThresholdConfigs& threshold_configs,
            const ReadingRangeConfigs& reading_range_configs,
            const std::shared_ptr<boost::asio::io_context>& io_context,
            const nic_veeprom::Accessor& accessor,
            std::optional<NotificationCb> on_batch_notify = std::nullopt);

  ~NicSensor() override = default;

  void RefreshOnceAsync(
      absl::AnyInvocable<void(const std::shared_ptr<const SensorValue>&)>
          callback) override;

 protected:
  absl::StatusOr<const std::shared_ptr<const SensorValue>> GetSensorValue() {
    return accessor_.GetSensorValue(telemetry_name_);
  }

 private:
  class Token {
   private:
    explicit Token() = default;
    friend NicSensor;
  };

  const nic_veeprom::NicTelemetryName telemetry_name_;
  const SensorUnit sensor_unit_;
  std::shared_ptr<boost::asio::io_context> io_context_;
  const nic_veeprom::Accessor& accessor_;
};

}  // namespace milotic_tlbmc

#endif  // THIRD_PARTY_MILOTIC_EXTERNAL_CC_TLBMC_SENSORS_NIC_SENSOR_H_