/*
 * Olive Community Edition - Non-Linear Video Editor
 * Copyright (C) 2025 Olive CE Team
 *
 * 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 RENDERPROCESSOR_H
#define RENDERPROCESSOR_H

#include "node/block/clip/clip.h"
#include "node/traverser.h"
#include "render/renderer.h"
#include "rendercache.h"
#include "renderticket.h"

namespace olive
{

class RenderProcessor : public NodeTraverser {
public:
	virtual NodeValueDatabase GenerateDatabase(const Node *node,
											   const TimeRange &range) override;

	static void Process(RenderTicketPtr ticket, Renderer *render_ctx,
						DecoderCache *decoder_cache, ShaderCache *shader_cache);

	struct RenderedWaveform {
		const ClipBlock *block;
		AudioVisualWaveform waveform;
		TimeRange range;
		bool silence;
	};

protected:
	virtual void ProcessVideoFootage(TexturePtr destination,
									 const FootageJob *stream,
									 const rational &input_time) override;

	virtual void ProcessAudioFootage(SampleBuffer &destination,
									 const FootageJob *stream,
									 const TimeRange &input_time) override;

	virtual void ProcessShader(TexturePtr destination, const Node *node,
							   const ShaderJob *job) override;

	virtual void ProcessSamples(SampleBuffer &destination, const Node *node,
								const TimeRange &range,
								const SampleJob &job) override;

	virtual void ProcessColorTransform(TexturePtr destination, const Node *node,
									   const ColorTransformJob *job) override;

	virtual void ProcessFrameGeneration(TexturePtr destination,
										const Node *node,
										const GenerateJob *job) override;

	virtual TexturePtr ProcessVideoCacheJob(const CacheJob *val) override;

	virtual TexturePtr CreateTexture(const VideoParams &p) override;

	virtual SampleBuffer CreateSampleBuffer(const AudioParams &params,
											int sample_count) override
	{
		return SampleBuffer(params, sample_count);
	}

	virtual void ConvertToReferenceSpace(TexturePtr destination,
										 TexturePtr source,
										 const QString &input_cs) override;

	virtual bool UseCache() const override;

private:
	RenderProcessor(RenderTicketPtr ticket, Renderer *render_ctx,
					DecoderCache *decoder_cache, ShaderCache *shader_cache);

	TexturePtr GenerateTexture(const rational &time,
							   const rational &frame_length);

	FramePtr GenerateFrame(TexturePtr texture, const rational &time);

	void Run();

	DecoderPtr ResolveDecoderFromInput(const QString &decoder_id,
									   const Decoder::CodecStream &stream);

	RenderTicketPtr ticket_;

	Renderer *render_ctx_;

	DecoderCache *decoder_cache_;

	ShaderCache *shader_cache_;
};

}

Q_DECLARE_METATYPE(olive::RenderProcessor::RenderedWaveform)

#endif // RENDERPROCESSOR_H