#pragma once


#include "NumenPrerequisites.h"

#include "NumenCompositor.h"
#include "NumenVrSystemListener.h"


namespace Numen
{
    class NUMEN_EXPORT CompositorVr :
        public Compositor,
        public VrSystemListener,
        public Ogre::CompositorWorkspaceListener
    {

    public:

                                                            CompositorVr(const std::string& name, Level* level);
        virtual                                             ~CompositorVr();

        void                                                attachRig(Ogre::SceneNode* node);
        void                                                changeSkybox(const Ogre::ColourValue& color, const std::string& materialName);
        void                                                configureRendering();
        void                                                configureWorkspace(unsigned int visibilityMask);
        void                                                detachRig();
        Ogre::Camera*                                       rigCamera(bool eyeLeft) const;
        Ogre::SceneNode*                                    rigNode() const;
        NodeBehaviourFreeCameraVr*                          rigNodeBehaviour() const;
        Ogre::TexturePtr                                    texture() const;

        virtual void                                        connect(LevelStatus status) override;

        virtual void                                        onHmdIpdChange(float ipd) override;
        virtual void                                        onVrSystemQuit() override;

        virtual void                                        workspacePreUpdate(Ogre::CompositorWorkspace* workspace) override;

    private:

        using Cameras = std::array<Ogre::Camera*, 2>;
        using NodeDefinitions = std::array<Ogre::CompositorNodeDef*, 2>;

        NodeDefinitions                                     m_nodeDefinitionsSceneTransparent;
        NodeDefinitions                                     m_nodeDefinitionsSceneUi;
        NodeDefinitions                                     m_nodeDefinitionsSkybox;
        NodeDefinitions                                     m_nodeDefinitionsVrSceneOpaque;
        Cameras                                             m_rigCameras;
        PtrUnique<NodeBehaviourFreeCameraVr>                m_rigNodeBehaviour;
        Ogre::TexturePtr                                    m_texture;
        Ogre::CompositorShadowNodeDef*                      m_nodeDefinitionShadows;
        Ogre::CompositorNodeDef*                            m_nodeDefinitionSkyboxBackground;
        Ogre::Camera*                                       m_rigCameraCullAndShadows;
        Ogre::SceneNode*                                    m_rigNode;
        Ogre::CompositorWorkspace*                          m_workspace;
        Ogre::CompositorWorkspaceDef*                       m_workspaceDefinition;
        Ogre::CompositorWorkspaceDef*                       m_workspaceDefinitionVr;
        Ogre::CompositorWorkspace*                          m_workspaceVr;

    };
}