#include "render/IMaterialProxy.h"
#include "IObjectMesh.h"

namespace LifeGraphics
{
IMaterial* IMaterialProxy::GetBaseMaterial()
{
	return base;
}
bool IMaterialProxy::SelectTechnique(MaterialTechnique tech)
{
	TechniqueCollectionItr it = technics.find(tech);
	if(it != technics.end()){
		active_technique = it->second;
		return true;
	}
	else //try to request it from parent material
	{
		IMaterialTechnique* t = base->CreateTechnique(MT_RENDER_DEFERRED,this);
		if(t == nullptr) return false;
		active_technique = t;
		return AddTechnique(t);
	}
	return false;
}
IMaterialProxy::IMaterialProxy(IMaterial* source, IObjectMesh* _geom)
	:active_technique(nullptr)
{
	base = source;
	geom = _geom;
}
bool IMaterialProxy::AddTechnique(IMaterialTechnique* tech)
{
	TechniqueCollectionItr it = technics.find(tech->GetTechniqueType());
	if(it != technics.end())//found
		return false;
	else
	{
		technics[tech->GetTechniqueType()] = tech;
		return true;
	}
}

IMaterialTechnique* IMaterialProxy::GetTechnique()
{
	return active_technique;
}

bool IMaterialTechnique::SelectPass(MaterialPass pass)
{
	if(active_pass != NULL && active_pass->GetPassType() == pass)
		return true;
	PassCollectionItr it = passes.find(pass);
	if(it != passes.end())
	{
		active_pass = it->second;
		return true;
	}

	//pass not found -> try to create it!
	IMaterialPass* newpass = parent->GetBaseMaterial()->CreatePass(this, pass);
	if(newpass != nullptr)
	{
		active_pass = newpass;
		return true;
	}
	return false;
}
IMaterialPass* IMaterialTechnique::GetPass()
{
	return active_pass;
}
bool IMaterialTechnique::AddPass(IMaterialPass* pass)
{
	PassCollectionItr it = passes.find(pass->GetPassType());
	if(it != passes.end()) //found
		return false;
	else
	{
		passes[pass->GetPassType()] = pass;
		return true;
	}
}
IMaterialTechnique::IMaterialTechnique(MaterialTechnique tech, IMaterialProxy* _parent)
	:active_pass(nullptr), tech_type(tech), parent(_parent)
{
}
MaterialTechnique IMaterialTechnique::GetTechniqueType()
{
	return tech_type;
}
}