/*==LICENSE==*

CyanWorlds.com Engine - MMOG client, server and tools
Copyright (C) 2011  Cyan Worlds, Inc.

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 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 General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.

You can contact Cyan Worlds, Inc. by email legal@cyan.com
 or by snail mail at:
      Cyan Worlds, Inc.
      14617 N Newport Hwy
      Mead, WA   99021

*==LICENSE==*/
#include "HeadSpin.h"
#include "max.h"
#include "iparamb2.h"

#include <algorithm>

#include "plComponent.h"
#include "plComponentMgr.h"
#include "plComponentReg.h"

/////////
class ComponentMgrClassDesc : public ClassDesc
{
public:
	int 			IsPublic()				{ return FALSE; }
	void*			Create(BOOL loading)	{ return &plComponentMgr::Inst(); }
	const TCHAR*	ClassName()				{ return _T("Component Mgr"); }
	SClass_ID		SuperClassID()			{ return UTILITY_CLASS_ID; }
	Class_ID 		ClassID()				{ return COMPONENT_MGR_CID; }
	const TCHAR* 	Category()				{ return _T(""); }
};

static ComponentMgrClassDesc theComponentMgrCD;
ClassDesc* GetComponentMgrDesc() { return &theComponentMgrCD; }

/////////////

plComponentMgr &plComponentMgr::Inst()
{
	static plComponentMgr theInstance;
	return theInstance;
}

UInt32 plComponentMgr::Count()
{
	return fDescs.size();
}

ClassDesc *plComponentMgr::Get(UInt32 i)
{
	if (i < fDescs.size())
		return fDescs[i];
	else
	{
		hsAssert(0, "Component index out of range");
		return nil;
	}
}

UInt32 plComponentMgr::FindClassID(Class_ID id)
{
	for (unsigned int i = 0; i < fDescs.size(); i++)
	{
		if (fDescs[i]->ClassID() == id)
			return i;
	}

	return -1;
}

int IDescCompare(ClassDesc *desc1, ClassDesc *desc2);

void plComponentMgr::Register(ClassDesc *desc)
{
	// Organize desc's by category and name
	for (unsigned int i = 0; i < fDescs.size(); i++)
	{
		if (IDescCompare(desc, fDescs[i]) < 0)
		{
			fDescs.insert(&fDescs[i], desc);
			return;
		}
	}

	fDescs.push_back(desc);
}

int IDescCompare(ClassDesc *desc1, ClassDesc *desc2)
{
	const char *cat1 = desc1->Category() ? desc1->Category() : "";
	const char *cat2 = desc2->Category() ? desc2->Category() : "";
	int cmp = strcmp(cat1, cat2);
	
	// Only compare name if categories are the same
	if (cmp == 0)
	{
		const char *name1 = desc1->ClassName() ? desc1->ClassName() : "";
		const char *name2 = desc2->ClassName() ? desc2->ClassName() : "";

		return strcmp(name1, name2);
	}

	return cmp;
}