/****************************************************************************
Copyright (c) 2011-2013,WebJet Business Division,CYOU

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The above copyright notice and this permission notice shall be included in
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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****************************************************************************/

#include "stdneb.h"
#include "serialization/serializeserver.h"
#include "vegetation/VegetationServer.h"
#include "vegetation/VegetationObejct.h"
#include "vegetation/InstanceMap.h"
#include "vegetation/GrassInstanceMap.h"
#include "vegetation/TreeInstanceMap.h"
#include "vegetation/MeshInstanceMap.h"
#include "addons/resource/templateressaver.h"

namespace Vegetation
{
	__ImplementClass(Vegetation::VegetationServer, 'VSEV', Core::RefCounted);
	__ImplementClass(Vegetation::VegetationInstanceContainer, 'VVIC', Core::RefCounted);
	__ImplementImageSingleton(VegetationServer);

	const SizeT Vegetation_Job_Count = 4;
	const Util::String StrEmpty("");

	//------------------------------------------------------------------------
	VegetationServer::VegetationServer()
	{
		__ConstructImageSingleton;
		mTemplates = VegetationInstanceContainer::Create();

		//mJobs.Reserve( Vegetation_Job_Count );
		//for ( IndexT i = 0; i < Vegetation_Job_Count; ++i)
		//{
		//	mJobs.Append( ParticleJob::Create() );
		//}

		//_RegisterDynamicClass
		{
			VegetationObject::RegisterWithFactory();
			VegeInstanceMap::RegisterWithFactory();
			//VegetationBrush::RegisterWithFactory();

			GrassInstanceMap::RegisterWithFactory();
			TreeInstanceMap::RegisterWithFactory();
			MeshInstanceMap::RegisterWithFactory();
		}
	}
	//------------------------------------------------------------------------
	VegetationServer::~VegetationServer()
	{
		__DestructImageSingleton;
		mActives.Clear();
		mTemplates = NULL; 
	}
	//------------------------------------------------------------------------
	void VegetationServer::_attachVegetationInstMap( const VegeInstanceMapPtr& pInstmap )
	{
		if ( pInstmap.isvalid() && !pInstmap->IsActive() )
		{
			mActives.Append( pInstmap );
			pInstmap->_onActivate();
		}
	}
	//-----------------------------------------------------------------------
	void VegetationServer::_deattachVegetationInstMap( const VegeInstanceMapPtr& pInstmap )
	{
		if ( pInstmap.isvalid() && pInstmap->IsActive() )
		{
			IndexT findIndex = mActives.FindIndex( pInstmap );
			n_assert( findIndex != InvalidIndex );

			pInstmap->_onDeactivate();

			if ( findIndex != InvalidIndex )
			{
				mActives.EraseIndex( findIndex );
			}
		}
	}
	//------------------------------------------------------------------------
	bool VegetationServer::OpenTemplateFile( Util::String filePath )
	{
		GPtr<Resources::TemplateResInfo> templateResInfo = Resources::ResourceManager::Instance()->CreateTemplateResInfo(filePath);

		if (templateResInfo.isvalid())
		{
			const GPtr<Resources::Resource>& resource = templateResInfo->GetRes();
			if ( !resource.isvalid() || resource->GetState() != Resources::Resource::Loaded)
			{
				return false;
			}

			const GPtr<Resources::TemplateRes>& res = resource.downcast<Resources::TemplateRes>();

			GPtr<Resources::TemplateResSaver> tplresSaver = Resources::TemplateResSaver::Create();
			if(tplresSaver->SaveResource(res))
			{			
				Serialization::SerializationServer* serialize = Serialization::SerializationServer::Instance();

				if (serialize)
				{
					GPtr<Serialization::SerializeReader> pReader = serialize->OpenReadFile( tplresSaver->GetStream() );
					if ( pReader )
					{
						const GPtr<VegeInstanceMap>& instmap = pReader->SerializeObject<VegeInstanceMap>();
						serialize->CloseReadFile(pReader);

						if ( instmap.isvalid() )
						{
							RemoveTemplate( filePath );
							AddTemplate( filePath, instmap);					
							return true;
						}
					}
				}
			}
		}

		return false;
	}
	//------------------------------------------------------------------------
	void VegetationServer::SaveTemplateFile(  Util::String filePath  )
	{		
		Serialization::SerializationServer* pSerialzeMgr = Serialization::SerializationServer::Instance();
		if( !pSerialzeMgr )
		{
			return;
		}

		GPtr<Serialization::SerializeWriter> pWriter = pSerialzeMgr->OpenWriteFile( filePath );
		if ( pWriter )
		{
			IndexT idx = mTemplates->mContainer.FindIndex(filePath);
			if ( idx != InvalidIndex )
			{
				const GPtr<VegeInstanceMap>& instmap = mTemplates->mContainer.ValueAtIndex(idx);
				pWriter->SerializeObject( instmap );
			}

			pSerialzeMgr->CloseWriteFile( pWriter );
		}

	}
	//------------------------------------------------------------------------
	VegeInstanceMapPtr VegetationServer::CreateFromTemplate(const Util::StringAtom& tplname)
	{
		if ( !tplname.IsValid() )
		{
			return VegeInstanceMapPtr(NULL);
		}

		const VegeInstanceMapPtr& source = FindTemplate( tplname );
		if ( source.isvalid() )
		{
			VegeInstanceMapPtr dest = Clone( source );
			return dest;
		}
		else
		{
			return VegeInstanceMapPtr(NULL);
		}
	}

	//------------------------------------------------------------------------
	bool VegetationServer::AddTemplate(const Util::StringAtom& tplname, const VegeInstanceMapPtr& instmap )
	{
		if ( !instmap.isvalid() || !tplname.IsValid() )
		{
			return false;
		}

		VegeInstanceMapPtr tpl = Clone( instmap );

		IndexT findIndex =  mTemplates->mContainer.FindIndex( tplname );
		if ( findIndex != InvalidIndex )
		{
			mTemplates->mContainer.ValueAtIndex(findIndex) = tpl;
		}
		else
		{
			mTemplates->mContainer.Add(tplname, tpl);
		}
		return true;
	}
	//------------------------------------------------------------------------
	void VegetationServer::RemoveTemplate( const Util::StringAtom& tplName )
	{
		IndexT findIndex = mTemplates->mContainer.FindIndex( tplName );
		if ( findIndex != InvalidIndex )
		{
			mTemplates->mContainer.EraseAtIndex( findIndex );
		}
	}
	//------------------------------------------------------------------------
	void VegetationServer::Update()
	{
		if ( mActives.IsEmpty() )
		{
			return;
		}

		bool useMutilThread = false;

		if ( !useMutilThread )
		{
			SizeT count = mActives.Size();
			for ( IndexT i = 0; i < count; ++i)
			{
				mActives[i]->Update();
			}
		}
	}
	//--------------------------------------------------------------------------------
	void VegetationServer::ClearActives()
	{
		if ( mActives.IsEmpty() )
		{
			return;
		}
		SizeT count = mActives.Size();
		for ( IndexT i = 0; i < count; ++i)
		{
			mActives[i]= NULL;
		}
		mActives.Clear();
	}
}