/* 
A* -------------------------------------------------------------------
B* This file contains source code for the PyMOL computer program
C* copyright 1998-2000 by Warren Lyford Delano of DeLano Scientific. 
D* -------------------------------------------------------------------
E* It is unlawful to modify or remove this copyright notice.
F* -------------------------------------------------------------------
G* Please see the accompanying LICENSE file for further information. 
H* -------------------------------------------------------------------
I* Additional authors of this source file include:
-* 
-* 
-*
Z* -------------------------------------------------------------------
*/
#ifndef _H_PyMOLObject
#define _H_PyMOLObject


/* literally a 3-D object...also an object object */

#include"Base.h"
#include"Rep.h"
#include"Setting.h"
#include"Symmetry.h"
#include"PyMOLGlobals.h"
#include"View.h"
#include"Word.h"
#include"pymol/math_defines.h"
#include"vla.h"
#include"RenderContext.h"
#include "MViewAction.h"

#include <string>
#include <type_traits>

using ObjectNameType = char[WordLength];

enum cObject_t : int {
  cObjectMolecule = 1,
  cObjectMap = 2,
  cObjectMesh = 3,
  cObjectMeasurement = 4,
  cObjectCallback = 5,
  cObjectCGO = 6,
  cObjectSurface = 7,
  cObjectGadget = 8,
  cObjectCalculator = 9,
  cObjectSlice = 10,
  cObjectAlignment = 11,
  cObjectGroup = 12,
  cObjectVolume = 13,
  cObjectCurve = 14,
  // Gizmo is UI object in world coordinate space (in 3D)
  cObjectGizmo = 15,
};

/* 
   the object base class is in the process of being converted to support
   states explicitly (an unfortunate early omission), which will allow
   for simplified implementation of future multi-state objects.
 */

struct CObjectState {
  PyMOLGlobals *G;
  std::vector<double> Matrix;
  std::vector<double> InvMatrix;
  CObjectState() : G(nullptr){};
  CObjectState(PyMOLGlobals * G): G(G) {};
};

namespace pymol
{
struct CObject {
  PyMOLGlobals* G = nullptr;
  cObject_t type;
  ObjectNameType Name{};
  int Color = 0;
  int visRep = 0;
  float ExtentMin[3]{}, ExtentMax[3]{};
  int ExtentFlag = false, TTTFlag = false;
  float TTT[16]{}; /* translate, transform, translate matrix (to apply when
                      rendering) */
  pymol::copyable_ptr<CSetting> Setting;
  int Enabled = 0; /* read-only... maintained by Scene */
  pymol::vla<CViewElem> ViewElem; /* for animating objects via the TTT */

  /* not pickled */
  int grid_slot = 0;
  CGO* gridSlotSelIndicatorsCGO = nullptr;
  int Grabbed = 0;

  // methods
  StateIndex_t getCurrentState() const;
  CObjectState* getObjectState(StateIndex_t state);
  const CObjectState* getObjectState(StateIndex_t state) const
  {
    return const_cast<CObject*>(this)->getObjectState(state);
  }

protected:
  CObject(PyMOLGlobals* G);

  /// @pre `0 <= state && state < getNFrame()`
  /// @return nullptr if state is empty (not active)
  virtual CObjectState* _getObjectState(int state) { return nullptr; }

public:
  virtual ~CObject();

  /**
   * Gets a copy TTT matrix of PyMOL Object, disregarding TTT flag
   * @return copy of TTT matrix
   * Note: See also ObjectGetTTT (by-pointer retrieval)
   */
  pymol::Mat4 getTTT() const
  {
    pymol::Mat4 ret_ttt;
    std::copy_n(std::begin(TTT), 16, ret_ttt.begin());
    return ret_ttt;
  }

  /**
   * Method version of ObjectSetName
   * @param name new object Name
   */
  void setName(pymol::zstring_view name);

  virtual void update() {}
  virtual void render(RenderInfo* info);
  virtual void invalidate(cRep_t rep, cRepInv_t level, int state) {}
  virtual int getNFrame() const { return 1; }
  virtual std::string describeElement(int index) const;
  virtual char* getCaption(char* ch, int len) const { return nullptr; };
  virtual pymol::copyable_ptr<CSetting>* getSettingHandle(int state);
  virtual CObject* clone() const { return nullptr; };
  virtual CSymmetry const* getSymmetry(int state = 0) const { return nullptr; }
  virtual bool setSymmetry(CSymmetry const&, int state = 0) { return false; }
  virtual pymol::RenderContext getRenderContext() const { return RenderContext::Camera; }
};
} // namespace pymol
int ObjectCopyHeader(pymol::CObject * I, const pymol::CObject * src);
void ObjectSetName(pymol::CObject * I, const char *name);
bool ObjectMakeValidName(char *name);
void ObjectMakeValidName(PyMOLGlobals * G, char *name, bool quiet = false);
void ObjectPurgeSettings(pymol::CObject * I);
void ObjectUseColor(pymol::CObject * I);
void ObjectUseColorCGO(CGO *cgo, pymol::CObject * I);
void ObjectSetRepVisMask(pymol::CObject * I, int repmask, int value);
void ObjectToggleRepVis(pymol::CObject * I, int rep);
void ObjectPrepareContext(pymol::CObject * I, RenderInfo * info);
void ObjectSetTTT(pymol::CObject * I, const float *ttt, int state,int store);
int ObjectGetTTT(pymol::CObject * I, const float **ttt, int state);
int ObjectGetTotalMatrix(pymol::CObject * I, int state, int history, double *matrix);
void ObjectCombineTTT(pymol::CObject * I, const float *ttt, int reverse_order, int store);
void ObjectTranslateTTT(pymol::CObject * T, const float *v,int store);
void ObjectSetTTTOrigin(pymol::CObject * I, float *origin);
void ObjectResetTTT(pymol::CObject * I,int store);
PyObject *ObjectAsPyList(const pymol::CObject * I);
int ObjectFromPyList(PyMOLGlobals * G, PyObject * list, pymol::CObject * I);
int ObjectGetCurrentState(const pymol::CObject * I, int ignore_all_states);
void ObjectAdjustStateRebuildRange(pymol::CObject * I, int *start, int *stop);
int ObjectMotion(pymol::CObject * I, MViewAction action, int first,
                 int last, float power, float bias,
                 int simple, float linear, int wrap,
                 int hand, int window, int cycles, int state, int quiet);
int ObjectGetSpecLevel(pymol::CObject * I, int frame);
void ObjectMotionTrim(pymol::CObject *I, int n_frame);
void ObjectDrawViewElem(pymol::CObject *I, BlockRect *rect, int frames, CGO *orthoCGO);
void ObjectStateInit(PyMOLGlobals * G, CObjectState * I);
void ObjectStatePurge(CObjectState * I);
int ObjectStateSetMatrix(CObjectState * I, const double *matrix);
double *ObjectStateGetMatrix(CObjectState * I);
const double *ObjectStateGetMatrix(const CObjectState * I);
const double *ObjectStateGetInvMatrix(const CObjectState * I);
void ObjectStateTransformMatrix(CObjectState * I, const double *matrix);
void ObjectStateResetMatrix(CObjectState * I);
PyObject *ObjectStateAsPyList(CObjectState * I);
int ObjectStateFromPyList(PyMOLGlobals * G, PyObject * list, CObjectState * I);
int ObjectStatePushAndApplyMatrix(CObjectState * I, RenderInfo * info);
void ObjectStatePopMatrix(CObjectState * I, RenderInfo * info);
void ObjectStateRightCombineMatrixR44d(CObjectState * I, const double *matrix);
void ObjectStateLeftCombineMatrixR44d(CObjectState * I, const double *matrix);
void ObjectStateCombineMatrixTTT(CObjectState * I, float *matrix);
int ObjectMotionModify(pymol::CObject* I, ViewElemAction action, int index,
    int count, int target, int freeze, int localize);
void ObjectMotionReinterpolate(pymol::CObject *I);
int ObjectMotionGetLength(pymol::CObject *I);

typedef struct _CObjectUpdateThreadInfo CObjectUpdateThreadInfo;

#define cObjectTypeAll                    0
#define cObjectTypeObjects                1
#define cObjectTypeSelections             2
#define cObjectTypePublic                 3
#define cObjectTypePublicObjects          4
#define cObjectTypePublicSelections       5
#define cObjectTypePublicNonGroupObjects  6
#define cObjectTypePublicGroupObjects     7
#define cObjectTypeNonGroupObjects        8
#define cObjectTypeGroupObjects           9
/* Note: public objects are ones that do not start with "_" */

// object and object-state level setting
template <typename V>
void SettingSet(
    int index, V value, pymol::CObject* obj, StateIndex_t state = cStateAll)
{
    auto handle = obj->getSettingHandle(state);
    if (handle)
      SettingSet(obj->G, *handle, index, value);
}

template <typename V>
V SettingGet(const pymol::CObject& obj, int index)
{
  using T = typename std::conditional<std::is_enum<V>::value, int, V>::type;
  return static_cast<V>(
      SettingGet<T>(obj.G, obj.Setting.get(), nullptr, index));
}

#endif