/*
-----------------------------------------------------------------------------
This source file is part of OpenSpace3D
For the latest info, see http://www.openspace3d.com

Copyright (c) 2012 I-maginer

This program is free software; you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License as published by the Free Software
Foundation; either version 2 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 Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place - Suite 330, Boston, MA 02111-1307, USA, or go to
http://www.gnu.org/copyleft/lesser.txt

-----------------------------------------------------------------------------
*/

struct InstProj = [
  INSTPROJ_iId                      : I,
  INSTPROJ_project                  : Project
  
  ]mkInstProj;;

struct PlugInstantiate = [
  INSTANTIATE_inst                  : PInstance,
  INSTANTIATE_sPath                 : S,
  INSTANTIATE_bUseEnv               : I,
  INSTANTIATE_parent                : SO3_OBJECT,
  INSTANTIATE_bSons                 : I,
  INSTANTIATE_iIndex                : I,
  INSTANTIATE_lProjects             : [InstProj r1],
  INSTANTIATE_bLoaded               : I,
  INSTANTIATE_bHide                 : I

  ]mkPlugInstantiate;;


fun deleteOb(inst, instantiatestr)=
  let (V3DgetSessionView c3dXsession) -> viewstr in
  while (instantiatestr.INSTANTIATE_lProjects != nil) do
  (
    let hd instantiatestr.INSTANTIATE_lProjects -> instprojstr in
      deleteProject instprojstr.INSTPROJ_project viewstr;
  );
  set instantiatestr.INSTANTIATE_iIndex = 0;
  
  if (!instantiatestr.INSTANTIATE_bUseEnv) then nil else
    loadEnvironmentPlayer inst.INST_groupstr.GRP_project (V3DgetSessionView c3dXsession) inst.INST_groupstr.GRP_xmlMark;
  0;;


fun cbSceneLoaded(projstr, instantiatestr, instprojstr)=  
  SendPluginEvent instantiatestr.INSTANTIATE_inst "Instance loaded" (itoa instprojstr.INSTPROJ_iId) nil;
  0;;


fun cbSceneDestroyed(projstr, instantiatestr, instprojstr)=
  SendPluginEvent instantiatestr.INSTANTIATE_inst "Instance destroyed" (itoa instprojstr.INSTPROJ_iId) nil;
  set instantiatestr.INSTANTIATE_lProjects = remove_from_list instantiatestr.INSTANTIATE_lProjects instprojstr;
  0;;


fun addInstance(inst, from, action, param, rep, instantiatestr)=
  if (instantiatestr.INSTANTIATE_sPath == nil) then nil else
  let strextr param -> lp in
  let if (atof (nth_list (hd lp) 0)) == nil then 0.0 else (atof (nth_list (hd lp) 0)) -> px in
  let if (atof (nth_list (hd lp) 1)) == nil then 0.0 else (atof (nth_list (hd lp) 1)) -> py in
  let if (atof (nth_list (hd lp) 2)) == nil then 0.0 else (atof (nth_list (hd lp) 2)) -> pz in
  let if (atof (nth_list (hd tl lp) 0)) == nil then 0.0 else (atof (nth_list (hd tl lp) 0)) -> ax in
  let if (atof (nth_list (hd tl lp) 1)) == nil then 0.0 else (atof (nth_list (hd tl lp) 1)) -> ay in
  let if (atof (nth_list (hd tl lp) 2)) == nil then 0.0 else (atof (nth_list (hd tl lp) 2)) -> az in
  let if (atof (nth_list (hd tl tl lp) 0)) == nil then 1.0 else (atof (nth_list (hd tl tl lp) 0)) -> sx in
  let if (atof (nth_list (hd tl tl lp) 1)) == nil then 1.0 else (atof (nth_list (hd tl tl lp) 1)) -> sy in
  let if (atof (nth_list (hd tl tl lp) 2)) == nil then 1.0 else (atof (nth_list (hd tl tl lp) 2)) -> sz in
  let SO3MathsEulerXYZToQuat [(SO3MathsDegreeToRadian ax) (SO3MathsDegreeToRadian ay) (SO3MathsDegreeToRadian az)] -> quat in
  let (V3DgetSessionView c3dXsession) -> viewstr in
  let crProject instantiatestr.INSTANTIATE_sPath (strcatn (itoa instantiatestr.INSTANTIATE_iIndex)::"."::(getPluginInstanceName inst)::nil) 2 inst.INST_sName -> projstr in
  let mkInstProj [instantiatestr.INSTANTIATE_iIndex projstr] -> instprojstr in
  (
    set projstr.PRJ_bHideOnClose = instantiatestr.INSTANTIATE_bHide;
    set instantiatestr.INSTANTIATE_lProjects = instprojstr::instantiatestr.INSTANTIATE_lProjects;
    set instantiatestr.INSTANTIATE_iIndex = instantiatestr.INSTANTIATE_iIndex + 1;
    
    setProjectCbSceneLoaded instprojstr.INSTPROJ_project mkfun2 mkfun3 @cbSceneLoaded instprojstr instantiatestr;
    setProjectCbSceneDestroyed instprojstr.INSTPROJ_project mkfun2 mkfun3 @cbSceneDestroyed instprojstr instantiatestr;
    
    if (!instantiatestr.INSTANTIATE_bHide) then
      loadProject instprojstr.INSTPROJ_project viewstr instantiatestr.INSTANTIATE_parent [px py pz] quat [sx sy sz] instantiatestr.INSTANTIATE_bUseEnv
    else
      preLoadProject instprojstr.INSTPROJ_project viewstr instantiatestr.INSTANTIATE_parent [px py pz] quat [sx sy sz] instantiatestr.INSTANTIATE_bUseEnv;
  );
  0;;


fun removeInstance(inst, from, action, param, rep, instantiatestr)=
  let (V3DgetSessionView c3dXsession) -> viewstr in
  let atoi param -> id in
  if id == nil then nil else
  (
    let 0 -> found in
    let instantiatestr.INSTANTIATE_lProjects -> l in
    let sizelist l -> size in
    let 0 -> i in
    while ((i < size) && !found) do
    (
      let nth_list l i -> instprojstr in
      if (id != instprojstr.INSTPROJ_iId) then nil else
      (
        deleteProject instprojstr.INSTPROJ_project viewstr;

        set found = 1;
      );
      
      set i = i + 1;
    );
  );
  0;;


fun removeAllInstances(inst, from, action, param, rep, instantiatestr)=
  deleteOb inst instantiatestr;
  set instantiatestr.INSTANTIATE_bLoaded = 0;
  SendPluginEvent instantiatestr.INSTANTIATE_inst "Unloaded" nil nil;
  0;;


fun hideInstance(inst, from, action, param, rep, instantiatestr)=
  let (V3DgetSessionView c3dXsession) -> viewstr in
  let atoi param -> id in
  if id == nil then nil else
  (
    let 0 -> found in
    let instantiatestr.INSTANTIATE_lProjects -> l in
    let sizelist l -> size in
    let 0 -> i in
    while ((i < size) && !found) do
    (
      let nth_list l i -> instprojstr in
      if (id != instprojstr.INSTPROJ_iId) then nil else
      (        
        hideProject instprojstr.INSTPROJ_project viewstr;
        SendPluginEvent inst "Hidden" param nil;
        set found = 1;
      );
      
      set i = i + 1;
    );
  );
  0;;


fun hideAllInstances(inst, from, action, param, rep, instantiatestr)=
  let (V3DgetSessionView c3dXsession) -> viewstr in
  let instantiatestr.INSTANTIATE_lProjects -> l in
  let sizelist l -> size in
  let 0 -> i in
  while (i < size) do
  (
    let nth_list l i -> instprojstr in
      hideProject instprojstr.INSTPROJ_project viewstr;

    set i = i + 1;
  );
  
  SendPluginEvent inst "Hidden" nil nil;
  0;;


fun showInstance(inst, from, action, param, rep, instantiatestr)=
  let (V3DgetSessionView c3dXsession) -> viewstr in
  let atoi param -> id in
  if id == nil then nil else
  (
    let 0 -> found in
    let instantiatestr.INSTANTIATE_lProjects -> l in
    let sizelist l -> size in
    let 0 -> i in
    while ((i < size) && !found) do
    (
      let nth_list l i -> instprojstr in
      if (id != instprojstr.INSTPROJ_iId) then nil else
      (
        showProject instprojstr.INSTPROJ_project viewstr;
        SendPluginEvent inst "Shown" param nil;
        set found = 1;
      );
      
      set i = i + 1;
    );
  );
  0;;


fun showAllInstances(inst, from, action, param, rep, instantiatestr)=
  let (V3DgetSessionView c3dXsession) -> viewstr in
  let instantiatestr.INSTANTIATE_lProjects -> l in
  let sizelist l -> size in
  let 0 -> i in
  while (i < size) do
  (
    let nth_list l i -> instprojstr in
      showProject instprojstr.INSTPROJ_project viewstr;

    set i = i + 1;
  );
  
  SendPluginEvent inst "Shown" nil nil;
  0;;


fun cbSortNodes(s1, s2)= strcmpi SO3ObjectGetName s1 SO3ObjectGetName s2;;


fun loadChildren(parent, instantiatestr)=
  let (V3DgetSessionView c3dXsession) -> viewstr in
  let quicksort SO3ObjectGetChildren parent @cbSortNodes -> lchild in
  while (lchild != nil) do
  (
    let hd lchild -> child in
    (
      loadChildren child instantiatestr;
      
      let crProject instantiatestr.INSTANTIATE_sPath (strcatn (itoa instantiatestr.INSTANTIATE_iIndex)::"."::(getPluginInstanceName instantiatestr.INSTANTIATE_inst)::nil) 2 instantiatestr.INSTANTIATE_inst.INST_sName -> projstr in
      let mkInstProj [instantiatestr.INSTANTIATE_iIndex projstr] -> instprojstr in
      (
        set projstr.PRJ_bHideOnClose = instantiatestr.INSTANTIATE_bHide;
        set instantiatestr.INSTANTIATE_lProjects = instprojstr::instantiatestr.INSTANTIATE_lProjects;
        set instantiatestr.INSTANTIATE_iIndex = instantiatestr.INSTANTIATE_iIndex + 1;
        
        setProjectCbSceneLoaded instprojstr.INSTPROJ_project mkfun2 mkfun3 @cbSceneLoaded instprojstr instantiatestr;
        setProjectCbSceneDestroyed instprojstr.INSTPROJ_project mkfun2 mkfun3 @cbSceneDestroyed instprojstr instantiatestr;
        loadProject instprojstr.INSTPROJ_project viewstr child [0.0 0.0 0.0] [0.0 0.0 0.0 1.0] [1.0 1.0 1.0] instantiatestr.INSTANTIATE_bUseEnv;
            
        if (!instantiatestr.INSTANTIATE_bHide) then nil else
          SO3ObjectSetVisible instprojstr.INSTPROJ_project.PRJ_group.GRP_shell 0 1;
      );
    );
    
    set lchild = tl lchild;
  );
  0;;


fun loadInstance(inst, from, action, param, rep, instantiatestr)=
  if ((instantiatestr.INSTANTIATE_sPath == nil) || (instantiatestr.INSTANTIATE_bLoaded)) then nil else
  let (V3DgetSessionView c3dXsession) -> viewstr in
  (
    set instantiatestr.INSTANTIATE_bLoaded = 1;
    if (instantiatestr.INSTANTIATE_bSons) then
    (
      loadChildren instantiatestr.INSTANTIATE_parent instantiatestr;
      0;
    )
    else
    (
      let crProject instantiatestr.INSTANTIATE_sPath (strcatn (itoa instantiatestr.INSTANTIATE_iIndex)::"."::(getPluginInstanceName instantiatestr.INSTANTIATE_inst)::nil) 2 inst.INST_sName -> projstr in
      let mkInstProj [instantiatestr.INSTANTIATE_iIndex projstr] -> instprojstr in
      (      
        set projstr.PRJ_bHideOnClose = instantiatestr.INSTANTIATE_bHide;
        set instantiatestr.INSTANTIATE_lProjects = instprojstr::instantiatestr.INSTANTIATE_lProjects;
        set instantiatestr.INSTANTIATE_iIndex = instantiatestr.INSTANTIATE_iIndex + 1;
        
        setProjectCbSceneLoaded instprojstr.INSTPROJ_project mkfun2 mkfun3 @cbSceneLoaded instprojstr instantiatestr;
        setProjectCbSceneDestroyed instprojstr.INSTPROJ_project mkfun2 mkfun3 @cbSceneDestroyed instprojstr instantiatestr;
        
        if (!instantiatestr.INSTANTIATE_bHide) then
          loadProject instprojstr.INSTPROJ_project viewstr instantiatestr.INSTANTIATE_parent [0.0 0.0 0.0] [0.0 0.0 0.0 1.0] [1.0 1.0 1.0] instantiatestr.INSTANTIATE_bUseEnv
        else 
          preLoadProject instprojstr.INSTPROJ_project viewstr instantiatestr.INSTANTIATE_parent [0.0 0.0 0.0] [0.0 0.0 0.0 1.0] [1.0 1.0 1.0] instantiatestr.INSTANTIATE_bUseEnv;
        0;
      );
    );
    
    SendPluginEvent instantiatestr.INSTANTIATE_inst "Loaded" nil nil;
  );  
  0;;


fun cbLoaded(inst, instantiatestr)=
  loadInstance inst nil nil nil nil instantiatestr;
  0;;


fun setProjectPath(inst, from, action, param, rep, instantiatestr)=
  set instantiatestr.INSTANTIATE_sPath = param;
  0;;


fun newOb(inst)=
  let (getPluginInstanceParam inst "path") -> path in
  let atoi (getPluginInstanceParam inst "env") -> env in
  let if env == nil then 0 else env -> env in
  
  let (getPluginInstanceParam inst "object") -> objname in
  let atoi (getPluginInstanceParam inst "sons") -> sons in
  let if sons == nil then 0 else sons -> sons in
  let atoi (getPluginInstanceParam inst "init") -> init in
  let if init == nil then 0 else init -> init in
  let atoi (getPluginInstanceParam inst "hide") -> hide in
  let if hide == nil then 0 else hide -> hide in
  
  let V3DgetObjectByName c3dXsession objname -> parent in  
  let mkPlugInstantiate [inst path env parent sons 0 nil 0 hide] -> instantiatestr in
  (
	  PluginRegisterAction inst "Add instance" mkfun6 @addInstance instantiatestr;
	  PluginRegisterAction inst "Remove instance" mkfun6 @removeInstance instantiatestr;
	  PluginRegisterAction inst "Remove all instances" mkfun6 @removeAllInstances instantiatestr;
	  PluginRegisterAction inst "Hide instance" mkfun6 @hideInstance instantiatestr;
	  PluginRegisterAction inst "Hide all instances" mkfun6 @hideAllInstances instantiatestr;
	  PluginRegisterAction inst "Show instance" mkfun6 @showInstance instantiatestr;
	  PluginRegisterAction inst "Show all instances" mkfun6 @showAllInstances instantiatestr;
	  
    PluginRegisterAction inst "Load" mkfun6 @loadInstance instantiatestr;
    PluginRegisterAction inst "Set project path" mkfun6 @setProjectPath instantiatestr;
        
    if (!init) then nil else
    (
      if inst.INST_groupstr.GRP_project.PRJ_bPluginsLoaded then
      (
        loadInstance inst nil nil nil nil instantiatestr;
        0;
      )
      else
      (
        setPluginInstanceCbAllPluginsLoaded inst mkfun2 @cbLoaded instantiatestr;
        0;
      );
    );
    
    setPluginInstanceCbDel inst mkfun2 @deleteOb instantiatestr;
  );
  0;;


fun IniPlug(file)=
  PlugRegister @newOb nil;
  setPluginEditor @dynamicedit;
  0;;