// Copyright (C) 2024 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only

#ifndef QQUICK3DXRORIGIN_H
#define QQUICK3DXRORIGIN_H

//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists purely as an
// implementation detail.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//


#include <QtQuick3DXr/qtquick3dxrglobal.h>

#include <QtQuick3D/private/qquick3dnode_p.h>
#include <QtQuick3DXr/private/qquick3dxrcamera_p.h>
#include <QtQml/QQmlEngine>
#include <QtQml/qqml.h>

QT_BEGIN_NAMESPACE

class QQuick3DXrView;

class Q_QUICK3DXR_EXPORT QQuick3DXrOrigin : public QQuick3DNode
{
    Q_OBJECT
    Q_PROPERTY(QQuick3DXrCamera *camera READ camera WRITE setCamera NOTIFY cameraChanged)
    QML_NAMED_ELEMENT(XrOrigin)
    QML_ADDED_IN_VERSION(6, 8)

public:
    explicit QQuick3DXrOrigin(QQuick3DNode *parent = nullptr);
    ~QQuick3DXrOrigin() override;

    QQuick3DXrCamera *camera() const;
    void setCamera(QQuick3DXrCamera *newCamera);

Q_SIGNALS:
    void cameraChanged();

private:
    QQuick3DXrEyeCamera *eyeCamera(int index) const;

    void syncCameraSettings();
    void resetCameraSettings();

    void updateTrackedCamera(const QMatrix4x4 &transform);
    void updateTrackedCamera(QVector3D position, QQuaternion rotation);

    QQuick3DXrCamera *m_camera = nullptr;
    std::array<QQuick3DXrEyeCamera *, 2> m_eyeCameras;

    friend class QQuick3DXrCamera;
    friend class QQuick3DXrManager;
    friend class QQuick3DXrManagerPrivate;
};

QT_END_NAMESPACE

#endif // QQUICK3DXRORIGIN_H