/***

  Olive - Non-Linear Video Editor
  Copyright (C) 2022 Olive Team
  Modifications Copyright (C) 2025 mikesolar

  This program is free software: you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation, either version 3 of the License, or
  (at your option) any later version.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with this program.  If not, see <http://www.gnu.org/licenses/>.

***/

#ifndef OAK_AUDIOWAVEFORMCACHE_H
#define OAK_AUDIOWAVEFORMCACHE_H

#include "audio/audiovisualwaveform.h"
#include "playbackcache.h"

namespace olive
{

class AudioWaveformCache : public PlaybackCache {
	Q_OBJECT
public:
	AudioWaveformCache(QObject *parent = nullptr);

	void write_waveform(const TimeRange &range,
					   const TimeRangeList &valid_ranges,
					   const AudioVisualWaveform *waveform);

	const AudioParams &get_parameters() const
	{
		return params_;
	}
	void set_parameters(const AudioParams &p)
	{
		params_ = p;
		waveforms_->set_channel_count(p.channel_count());
	}

	void Draw(QPainter *painter, const QRect &rect, const double &scale,
			  const Rational &start_time) const;

	AudioVisualWaveform::Sample
	get_summary_from_time(const Rational &start, const Rational &length) const;

	Rational length() const;

	virtual void set_passthrough(PlaybackCache *cache) override;

protected:
	virtual void InvalidateEvent(const TimeRange &range) override;

private:
	using WaveformPtr = std::shared_ptr<AudioVisualWaveform>;

	WaveformPtr waveforms_;

	AudioParams params_;

	class WaveformPassthrough : public TimeRange {
	public:
		WaveformPassthrough(const TimeRange &r)
			: TimeRange(r)
		{
		}

		WaveformPtr waveform;
	};

	std::vector<WaveformPassthrough> passthroughs_;
};

}

#endif // OAK_AUDIOWAVEFORMCACHE_H