#ifndef MS_RTC_AUDIO_LEVEL_OBSERVER_HPP
#define MS_RTC_AUDIO_LEVEL_OBSERVER_HPP

#include "handles/TimerHandleInterface.hpp"
#include "RTC/RtpObserver.hpp"
#include "SharedInterface.hpp"
#include <ankerl/unordered_dense.h>

namespace RTC
{
	class AudioLevelObserver : public RTC::RtpObserver, public TimerHandleInterface::Listener
	{
	private:
		struct DBovs
		{
			uint16_t totalSum{ 0 }; // Sum of dBvos (positive integer).
			size_t count{ 0 };      // Number of dBvos entries in totalSum.
		};

	public:
		AudioLevelObserver(
		  SharedInterface* shared,
		  const std::string& id,
		  RTC::RtpObserver::Listener* listener,
		  const FBS::AudioLevelObserver::AudioLevelObserverOptions* options);
		~AudioLevelObserver() override;

	public:
		void AddProducer(RTC::Producer* producer) override;
		void RemoveProducer(RTC::Producer* producer) override;
		void ReceiveRtpPacket(RTC::Producer* producer, RTC::RTP::Packet* packet) override;
		void ProducerPaused(RTC::Producer* producer) override;
		void ProducerResumed(RTC::Producer* producer) override;

	private:
		void Paused() override;
		void Resumed() override;
		void Update();
		void ResetMapProducerDBovs();

		/* Pure virtual methods inherited from TimerHandleInterface. */
	protected:
		void OnTimer(TimerHandleInterface* timer) override;

	private:
		// Passed by argument.
		uint16_t maxEntries{ 1 };
		int8_t threshold{ -80 };
		int64_t intervalMs{ 1000 };
		// Allocated by this.
		TimerHandleInterface* periodicTimer{ nullptr };
		// Others.
		ankerl::unordered_dense::map<RTC::Producer*, DBovs> mapProducerDBovs;
		bool silence{ true };
	};
} // namespace RTC

#endif