#pragma once

#include <dtEntity/defaultentitysystem.h>
#include <dtEntityOSG/cameracomponent.h>
#include <dtEntity/inputinterface.h>

namespace VCtrl
{

class MotionModelComponent final
  : public dtEntity::Component
  , public dtEntity::InputCallbackInterface
{
public:
  static const dtEntity::ComponentType TYPE;
  static const dtEntity::StringId ContextIdId;
  static const dtEntity::StringId MoveSpeedId;
  static const dtEntity::StringId RotateSpeedId;
  static const dtEntity::StringId RotateKeySpeedId;
  static const dtEntity::StringId EnabledId;


  MotionModelComponent();

  dtEntity::ComponentType GetType() const  override { return TYPE; }

  virtual bool IsInstanceOf(dtEntity::ComponentType id) const
  {
    return (id == TYPE);
  }

  void OnAddedToEntity(dtEntity::Entity &entity) override;
  void OnRemovedFromEntity(dtEntity::Entity &) override;

  void Finished() override;
  void Tick(float dt);

  unsigned int GetContextId() const { return mContextId.Get(); }
  void SetContextId(unsigned int i) { mContextId.Set(i); }

  bool KeyUp(const std::string &key, bool handled, unsigned int contextid) override;
  bool KeyDown(const std::string &name, bool handled, unsigned int contextid) override;
  bool MouseButtonUp(int button, bool handled, unsigned int contextid) override;
  bool MouseButtonDown(int button, bool handled, unsigned int contextid) override;
  bool MouseWheel(int dir, bool handled, unsigned int contextid) override;
  bool MouseMove(float x, float y, bool handled, unsigned int contextid) override;
  void MouseEnterLeave(bool, unsigned int)  override {}

  dtEntityOSG::CameraComponent *GetCamera() const { return mCamera; }
private:
  dtEntity::IntProperty mContextId;
  dtEntity::UIntProperty mMoveSpeed;
  dtEntity::FloatProperty mRotateSpeed;
  dtEntity::FloatProperty mRotateKeySpeed;
  dtEntity::BoolProperty mEnabled;
  dtEntityOSG::CameraComponent *mCamera = nullptr;
  dtEntity::Entity *mEntity = nullptr;
  osg::Vec3d mPivot;

};

////////////////////////////////////////////////////////////////////////////////
class MotionModelSystem final
  : public dtEntity::DefaultEntitySystem<MotionModelComponent>
{
  using BaseClass = dtEntity::DefaultEntitySystem<MotionModelComponent>;

public:

  static const dtEntity::ComponentType TYPE;

  explicit MotionModelSystem(dtEntity::EntityManager &em);

private:

  void Tick(const dtEntity::Message &m);
  void MoveToPos(const dtEntity::Message &m);
  void MoveToEntity(const dtEntity::Message &m);

  dtEntity::MessageFunctor mTickFunctor;
  dtEntity::MessageFunctor mMoveToPosFunctor;
  dtEntity::MessageFunctor mMoveToEntityFunctor;
};
}