/*
 * Oak Video Editor - 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/>.
 */

#include "generatorwithmerge.h"

#include "node/math/merge/merge.h"

namespace olive
{

#define super Node

const QString GeneratorWithMerge::kBaseInput = QStringLiteral("base_in");

GeneratorWithMerge::GeneratorWithMerge()
{
	AddInput(kBaseInput, NodeValue::kTexture,
			 InputFlags(kInputFlagNotKeyframable));
	SetEffectInput(kBaseInput);
	SetFlag(kVideoEffect);
}

void GeneratorWithMerge::Retranslate()
{
	super::Retranslate();

	SetInputName(kBaseInput, tr("Base"));
}

ShaderCode GeneratorWithMerge::GetShaderCode(const ShaderRequest &request) const
{
	if (request.id == QStringLiteral("mrg")) {
		return ShaderCode(
			FileFunctions::ReadFileAsString(":/shaders/alphaover.frag"));
	}

	return ShaderCode();
}

void GeneratorWithMerge::PushMergableJob(const NodeValueRow &value,
										 TexturePtr job,
										 NodeValueTable *table) const
{
	if (TexturePtr base = value[kBaseInput].toTexture()) {
		// Push as merge node
		ShaderJob merge;

		merge.SetShaderID(QStringLiteral("mrg"));
		merge.Insert(MergeNode::kBaseIn, value[kBaseInput]);
		merge.Insert(MergeNode::kBlendIn,
					 NodeValue(NodeValue::kTexture, job, this));

		table->Push(NodeValue::kTexture, base->toJob(merge), this);
	} else {
		// Just push generate job
		table->Push(NodeValue::kTexture, job, this);
	}
}

}
