#pragma once
#include<Windows.h>
#include"AudioClip.h"
#include"WavFileReader.h"
#include"AudioConfig.h"
#include"../global/Base.h"
#include"../audio3d/FFTFilter.h"
#include"../audio3d/Reberation.h"
#include"../audio3d/HRTF.h"
#pragma comment(lib,"winmm.lib")

class AudioSource
{
public:
	AudioSource();
	~AudioSource();
	void Play();
	void Load(AudioClip* p_clip);
	void Update(double p_deltaTime);
	void StartEnergyDetect();
	void CloseEnergyDetect();
	float GetEnergy();
	short* GetBufferData();
	void PrepareBufferData();
	void SetDirection(int p_elevation, int p_azimuth);

	bool IsActive() { return m_isActive; }
private:
	void HRTFInitialize();
	void ApplyFadeWindow(const std::vector<float>& p_block_last, const std::vector<float>& p_block_next, std::vector<float>* p_fade_result);
private:
	AudioClip* m_audioClip{nullptr};
	WavFileReader* m_wavReader{ nullptr };
	double m_lastingTime = 0;
	bool m_isActive = false;
	bool m_isLoaded = false;
	bool m_isEnergyDetecting = 0;
	long long m_avergeEnergy = 0;
	int m_avergeOldIndex = 0;
	long long m_thisEnergy = 0;
	float m_thisEnergyScale = 0;
	float m_maxEnergyScale = 5.;
	float m_energyRate = 0;
	std::deque<long long> m_historyEnergys{};
	const static int m_bufferSize = AUDIO_BUFFER_SIZE;
	short m_buffer[m_bufferSize] = { 0 };
	int m_sampleIndex = 0;

	int m_elevation = 0;
	int m_azimuth = 0;

	FFTFilter m_filter;
	Reberation m_reberation;
	HRTF m_hrtf;
	FFTFilter m_hrtf_filter_L;
	FFTFilter m_hrtf_filter_R;
	std::vector<float> m_fade_window;
};