/*
 * 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/>.
 */

#ifndef CURVEWIDGET_H
#define CURVEWIDGET_H

#include <QCheckBox>
#include <QHBoxLayout>
#include <QPushButton>
#include <QWidget>

#include "curveview.h"
#include "widget/nodeparamview/nodeparamviewkeyframecontrol.h"
#include "widget/nodeparamview/nodeparamviewwidgetbridge.h"
#include "widget/nodetreeview/nodetreeview.h"
#include "widget/timebased/timebasedwidget.h"

namespace olive
{

class CurveWidget : public TimeBasedWidget, public TimeTargetObject {
	Q_OBJECT
public:
	CurveWidget(QWidget *parent = nullptr);

	const double &GetVerticalScale();
	void SetVerticalScale(const double &vscale);

	void DeleteSelected();

	void SelectAll()
	{
		view_->SelectAll();
	}

	void DeselectAll()
	{
		view_->DeselectAll();
	}

	Node *GetSelectedNodeWithID(const QString &id);

	virtual bool CopySelected(bool cut) override;

	virtual bool Paste() override;

public slots:
	void SetNodes(const QVector<Node *> &nodes);

protected:
	virtual void TimebaseChangedEvent(const rational &) override;
	virtual void ScaleChangedEvent(const double &) override;

	virtual void TimeTargetChangedEvent(ViewerOutput *target) override;

	virtual void ConnectedNodeChangeEvent(ViewerOutput *n) override;

	virtual const QVector<KeyframeViewInputConnection *> *
	GetSnapKeyframes() const override
	{
		return &view_->GetKeyframeTracks();
	}

	virtual const TimeTargetObject *GetKeyframeTimeTarget() const override
	{
		return view_;
	}

	virtual const std::vector<NodeKeyframe *> *
	GetSnapIgnoreKeyframes() const override
	{
		return &view_->GetSelectedKeyframes();
	}

private:
	void SetKeyframeButtonEnabled(bool enable);

	void SetKeyframeButtonChecked(bool checked);

	void SetKeyframeButtonCheckedFromType(NodeKeyframe::Type type);

	void ConnectInput(Node *node, const QString &input, int element);

	void ConnectInputInternal(Node *node, const QString &input, int element);

	QHash<NodeKeyframeTrackReference, QColor> keyframe_colors_;

	NodeTreeView *tree_view_;

	QPushButton *linear_button_;

	QPushButton *bezier_button_;

	QPushButton *hold_button_;

	CurveView *view_;

	NodeParamViewKeyframeControl *key_control_;

	QVector<Node *> nodes_;

	QVector<NodeKeyframeTrackReference> selected_tracks_;

private slots:
	void SelectionChanged();

	void KeyframeTypeButtonTriggered(bool checked);

	void InputSelectionChanged(const NodeKeyframeTrackReference &ref);

	void KeyframeViewDragged(int x, int y);
	void KeyframeViewReleased();
};

}

#endif // CURVEWIDGET_H
