#pragma once

#include "envoy/common/time.h"

#include "envoy/extensions/resource_monitors/cpu_utilization/v3/cpu_utilization.pb.h"

#include "envoy/server/resource_monitor.h"

#include "source/common/runtime/runtime_features.h"

#include "source/extensions/resource_monitors/cpu_utilization/cpu_stats_reader.h"

namespace Envoy {

namespace Extensions {

namespace ResourceMonitors {

namespace CpuUtilizationMonitor {

class CpuUtilizationMonitor : public Server::ResourceMonitor {

public:

  CpuUtilizationMonitor(

      const envoy::extensions::resource_monitors::cpu_utilization::v3::CpuUtilizationConfig& config,

      std::unique_ptr<CpuStatsReader> cpu_stats_reader);

  void updateResourceUsage(Server::ResourceUpdateCallbacks& callbacks) override;

private:

  double utilization_ = 0.0;

  std::unique_ptr<CpuStatsReader> cpu_stats_reader_;

};

} // namespace CpuUtilizationMonitor

} // namespace ResourceMonitors

} // namespace Extensions

} // namespace Envoy