#pragma once

#include "../FXProcessor.h"
#include "Biquad.h"

namespace serum
{

// ===========================================================================
// Hyper — an OTT-style three-band upward/downward compressor. p[0]=intensity,
// p[1]=low amount, p[2]=high amount, p[3]=output.
// ===========================================================================
class HyperUnit : public FXUnit
{
public:
    void prepare (double sampleRate, int maxBlockSize) override;
    void reset() override;
    void process (float* l, float* r, int numSamples, const float p[4]) override;

private:
    struct Band
    {
        float env  = 0.0f;
        float gain = 1.0f;
    };

    double sr = 44100.0;
    Biquad lpL, lpR, hpL, hpR;
    Band   bL[3], bR[3];

    float computeGain (Band& band, float absIn, float intensity) noexcept;
};

} // namespace serum