#pragma once

#include "effects/video_effect.hpp"

namespace effector {

// The pixel sort in motion: only pixels inside a window of brightness are
// sorted, and the window sweeps from the dark end to the bright end and back,
// so the sorted streaks spread over one part of the picture after another,
// melt away and return.
//
// Which lines are sorted, and how their runs are cut, is drawn from
// at.steady() and stays put; the window alone moves, there and back once a
// cycle, so the clip loops without a jump.
class SweepEffect : public VideoEffect {
public:
    std::string name() const override { return "sweep"; }
    std::string title() const override { return "Sort sweep"; }
    std::string description() const override {
        return "Sorts runs of pixels as Pixel sort does, only within a window of brightness that "
               "sweeps from dark to bright and back.";
    }
    const std::vector<ParamSpec>& params() const override;

protected:
    Image animate(Image input, const ParamValues& values, const Moment& at) const override;
};

}  // namespace effector