// Ryzom - MMORPG Framework <http://dev.ryzom.com/projects/ryzom/>
// Copyright (C) 2010  Winch Gate Property Limited
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero 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 Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.



#include "stdpch.h"
#include "interface_expr_node.h"
#include "../cdb_leaf.h"
#include "../cdb_branch.h"

//*******************************************************************************************************
void CInterfaceExprNodeValue::eval(CInterfaceExprValue &result)
{
	result = Value;
}

void CInterfaceExprNodeValue::evalWithDepends(CInterfaceExprValue &result, std::vector<ICDBNode *> &/* nodes */)
{
	result = Value;
}

void CInterfaceExprNodeValue::getDepends(std::vector<ICDBNode *> &/* nodes */)
{
}


//*******************************************************************************************************
void CInterfaceExprNodeValueFnCall::eval(CInterfaceExprValue &result)
{
	nlassert(Func);
	uint numParams = Params.size();
	std::vector<CInterfaceExprValue> params(numParams);
	for(uint k = 0; k < numParams; ++k)
	{
		Params[k]->eval(params[k]);
	}
	Func(params, result); // do actual call
}

void CInterfaceExprNodeValueFnCall::evalWithDepends(CInterfaceExprValue &result, std::vector<ICDBNode *> &nodes)
{
	nlassert(Func);
	uint numParams = Params.size();
	std::vector<CInterfaceExprValue> params(numParams);
	for(uint k = 0; k < numParams; ++k)
	{
		Params[k]->evalWithDepends(params[k], nodes);
	}
	Func(params, result); // do actual call
}

void CInterfaceExprNodeValueFnCall::getDepends(std::vector<ICDBNode *> &nodes)
{
	uint numParams = Params.size();
	for(uint k = 0; k < numParams; ++k)
	{
		Params[k]->getDepends(nodes);
	}
}


CInterfaceExprNodeValueFnCall::~CInterfaceExprNodeValueFnCall()
{
	for(uint k = 0; k < Params.size(); ++k)
	{
		delete Params[k];
	}
}

//*******************************************************************************************************
void CInterfaceExprNodeDBLeaf::eval(CInterfaceExprValue &result)
{
	nlassert(Leaf);
	result.setInteger(Leaf->getValue64());
}

void CInterfaceExprNodeDBLeaf::evalWithDepends(CInterfaceExprValue &result,std::vector<ICDBNode *> &nodes)
{
	nlassert(Leaf);
	result.setInteger(Leaf->getValue64());
	if (std::find(nodes.begin(), nodes.end(), Leaf) == nodes.end())
	{
		nodes.push_back(Leaf);
	}
}

void CInterfaceExprNodeDBLeaf::getDepends(std::vector<ICDBNode *> &nodes)
{
	nlassert(Leaf);
	if (std::find(nodes.begin(), nodes.end(), Leaf) == nodes.end())
	{
		nodes.push_back(Leaf);
	}
}


//*******************************************************************************************************
void CInterfaceExprNodeDBBranch::eval(CInterfaceExprValue &result)
{
	nlassert(Branch);
	result.setInteger(0);
}

void CInterfaceExprNodeDBBranch::evalWithDepends(CInterfaceExprValue &result,std::vector<ICDBNode *> &nodes)
{
	nlassert(Branch);
	result.setInteger(0);
	if (std::find(nodes.begin(), nodes.end(), Branch) == nodes.end())
	{
		nodes.push_back(Branch);
	}
}

void CInterfaceExprNodeDBBranch::getDepends(std::vector<ICDBNode *> &nodes)
{
	nlassert(Branch);
	if (std::find(nodes.begin(), nodes.end(), Branch) == nodes.end())
	{
		nodes.push_back(Branch);
	}
}


//*******************************************************************************************************
void CInterfaceExprNodeDependantDBRead::eval(CInterfaceExprValue &result)
{
	// no gain there, but barely used
	CInterfaceExpr::eval(Expr, result);
}

void CInterfaceExprNodeDependantDBRead::evalWithDepends(CInterfaceExprValue &result, std::vector<ICDBNode *> &nodes)
{
	CInterfaceExpr::eval(Expr, result, &nodes);
}

void CInterfaceExprNodeDependantDBRead::getDepends(std::vector<ICDBNode *> &nodes)
{
	CInterfaceExprValue dummyResult;
	CInterfaceExpr::eval(Expr, dummyResult, &nodes, true);
}