#pragma once

#include <JuceHeader.h>
#include "Params.h"
#include "Filter.h"

namespace serum
{

// ===========================================================================
// Snapshot of the two-slot filter section.
// ===========================================================================
struct FilterBankParams
{
    bool  f1On = false, f2On = false;
    int   f1Type = 0, f2Type = 0;
    float f1Cutoff = 0.5f, f2Cutoff = 0.5f;
    float f1Res = 0.0f, f2Res = 0.0f;
    float f1Drive = 0.0f, f2Drive = 0.0f;
    float f1Key = 0.0f, f2Key = 0.0f;
    int   f1Slope = 2, f2Slope = 2;
    int   route = 0;
    float mix   = 0.5f;
    float out   = 1.0f;
};

// ===========================================================================
// Two filter slots with serial / parallel / split routing, processed stereo.
// ===========================================================================
class FilterBank
{
public:
    void prepare (double sampleRate, int maxBlockSize);
    void reset();

    void process (float* l, float* r, int numSamples, const FilterBankParams& p, float noteHz) noexcept;

private:
    Filter f1L, f1R, f2L, f2R;

    static void applySlot (Filter& f, float* buf, int n, bool on, int type, float cutoff,
                           float res, float drive, float key, int slope, float noteHz) noexcept;
};

} // namespace serum