#ifndef PARSERGRAMMAR_HH_
#define PARSERGRAMMAR_HH_

#include <boost/spirit/include/qi.hpp>
#include <boost/spirit/include/phoenix.hpp>

#include "ExpressionContainer.hh"
#include "CustomFoldDirective.hh"

#include "ParserToolbox.hh"
#include "Properties.hh"

#include "FunctionInfo.hh"

namespace AMDA {
namespace parser {

namespace qi = boost::spirit::qi;

using namespace qi;
using namespace Expression;

#define PARSERGRAMMAR_ADD_OPERATOR(operation, next, operator) fold<operation>(next.alias())[operator >> next]

template <typename It, typename Skipper = boost::spirit::standard_wide::space_type>

class ParserGrammar : public qi::grammar<It, Expression::ExpressionContainer(), Skipper>

{

public:

    ParserGrammar(AMDA::helpers::Properties& lProperties) : ParserGrammar::base_type(expr_)

    {

        expr_ = equal_.alias();

        equal_          = PARSERGRAMMAR_ADD_OPERATOR(EqualOperation,          unequal_,        equalOperator_); 
        unequal_        = PARSERGRAMMAR_ADD_OPERATOR(UnequalOperation,        greaterOrEqual_, unequalOperator_);
        greaterOrEqual_ = PARSERGRAMMAR_ADD_OPERATOR(GreaterOrEqualOperation, lowerOrEqual_,   greaterOrEqualOperator_);
        lowerOrEqual_   = PARSERGRAMMAR_ADD_OPERATOR(LowerOrEqualOperation,   greater_,        lowerOrEqualOperator_);
	greater_        = PARSERGRAMMAR_ADD_OPERATOR(GreaterOperation,        lower_,          greaterOperator_);
	lower_          = PARSERGRAMMAR_ADD_OPERATOR(LowerOperation,          or_,             lowerOperator_);

	or_             = PARSERGRAMMAR_ADD_OPERATOR(OrOperation,             sum_,            orOperator_);
	sum_            = PARSERGRAMMAR_ADD_OPERATOR(SumOperation,            difference_,     sumOperator_);
	difference_     = PARSERGRAMMAR_ADD_OPERATOR(DifferenceOperation,     and_,            differenceOperator_);
	and_            = PARSERGRAMMAR_ADD_OPERATOR(AndOperation,            factor_,         andOperator_);
        factor_         = PARSERGRAMMAR_ADD_OPERATOR(FactorOperation,         division_,       factorOperator_);
        division_       = PARSERGRAMMAR_ADD_OPERATOR(DivisionOperation,       powerTen_,       divisionOperator_);

	powerTen_       = PARSERGRAMMAR_ADD_OPERATOR(PowerTenOperation,       pow_,            powerTenOperator_);

	pow_            = PARSERGRAMMAR_ADD_OPERATOR(PowerOperation,          plusSign_,       powOperator_);

        plusSign_ = ((sumOperator_ >>-*sumOperator_)> minusSign_ ) [_val = boost::phoenix::construct<PlusSignOperation>(_1)] ||
                ((differenceOperator_ >>differenceOperator_)> minusSign_ ) [_val = boost::phoenix::construct<PlusSignOperation>(_1)] |minusSign_ [_val = _1];

        minusSign_ = (((-*sumOperator_>>differenceOperator_ >>-*sumOperator_) ) > not_) [_val = boost::phoenix::construct<MinusSignOperation>(_1)] | not_[_val = _1];

	not_ = (notOperator_ > functions_) [_val = boost::phoenix::construct<NotOperation>(_1)] | functions_[_val = _1];

        functions_ = (threeArgsFunction>>"(">>funArgs_>>argumentSeparator_>>funArgs_>>argumentSeparator_>>funArgs_>>")")[_val= boost::phoenix::construct<FunctionOperation>(_1,_2,_3,_4)] ||
        (twoArgsFunction>>"(">>funArgs_>>argumentSeparator_>>funArgs_>>")")[_val= boost::phoenix::construct<FunctionOperation>(_1,_2,_3)]||

        (oneArgsFunction>>"(">>funArgs_>>")")[_val= boost::phoenix::construct<FunctionOperation>(_1,_2)]|const_[_val=_1];

	// UNARY OPERATIONS

	const_ = (definedConstants) [_val = boost::phoenix::construct<ConstantOperation>(_1)] | param_[_val = _1];

        param_= ((localParams_ | derivedParam_ | uploadedParam_ | impexParam_ | themisParam_ | cdaWebParam_) >>('(' >> componentValue_ >> componentSeparator_ >> componentValue_ >>')'))[_val=boost::phoenix::construct<ParameterDef>(_1,_2,_3)] ||
		((localParams_ | derivedParam_ | uploadedParam_ | impexParam_ | themisParam_ | cdaWebParam_) >>('(' >> componentValue_ >> ')'))[_val=boost::phoenix::construct<ParameterDef>(_1,_2)] ||
		((localParams_ | derivedParam_ | uploadedParam_ | impexParam_ | themisParam_ | cdaWebParam_))[_val=boost::phoenix::construct<ParameterDef>(_1)] | simple[_val = _1];

        funArgs_=((expr_   |var_) |functions_); 

        simple = (('(' > expr_ > ')') | var_);

	var_ = (+qi::char_('0','9') >> -qi::char_('.') >> -(+qi::char_('0','9'))) | ((qi::char_('.') >> +qi::char_('0','9')));

	componentValue_ = (+qi::char_('0','9') | qi::char_('*') | (qi::string("range[") >> var_ >> qi::char_(',') >> var_ >> qi::string("]")) | (qi::string("indexes[") >> indexValue_ >> qi::char_(',') >> indexValue_ >> qi::string("]")));
	indexValue_ = +qi::char_('0','9');

	derivedParam_ = (qi::string("ws_") >> +(qi::alnum | qi::char_('_')));
	uploadedParam_ = (qi::string("wsd_") >> +(qi::alnum | qi::char_('_')));
	impexParam_ = (qi::string("spase___IMPEX_") >> +(qi::alnum | qi::char_('_')));
	themisParam_ = (qi::string("th") >> qi::char_('a','e') >> qi::char_('_') >> +(qi::alnum | qi::char_('_')));
	cdaWebParam_ = (qi::string("cdaweb_") >> +(qi::alnum | qi::char_('_')));

	powOperator_        = qi::char_('^');

	powerTenOperator_   = qi::char_('e');

        notOperator_        = qi::char_('!');

        andOperator_        = qi::string("&");
        orOperator_         = qi::string("|");

        equalOperator_      = qi::string("=");

        unequalOperator_    = qi::string("!=");

        sumOperator_        = qi::char_('+');
        differenceOperator_ = qi::char_('-');

        factorOperator_     = qi::char_("*");
        divisionOperator_   = qi::char_("/");
        greaterOperator_   = qi::char_(">");
        greaterOrEqualOperator_   = qi::string(">=");
        lowerOrEqualOperator_   = qi::string("<=");
        lowerOperator_   = qi::char_("<");

	argumentSeparator_    = qi::char_(",");
        componentSeparator_   = qi::char_(",");

	// Define available constants
	std::map<std::string, std::string> existingConstants = ParserToolbox::getConstants(lProperties);
	for(std::map<std::string, std::string>::iterator it = existingConstants.begin(); it != existingConstants.end(); ++it) {

		definedConstants.add (it->first, it->second);

        }

	// Define available local params

	std::vector<std::string> existingParams = ParserToolbox::getParameters(lProperties);
	for(std::vector<std::string>::iterator it = existingParams.begin(); it != existingParams.end(); ++it) {

		localParams_.add(*it,*it);

	}

       
        // Defined functions available 
        std::map<std::string,FunctionInfo> existingFunctions = ParserToolbox::getFunctions(lProperties);
        for(auto const& x : existingFunctions ) {

                if ((x.second.getNbArgs() == 1) && (!x.second.hasPromptedArg())) {

                      oneArgsFunction.add(x.second.getIHMName(), x.second.getKernelName());

                }else if ((x.second.getNbArgs() == 2) || ((x.second.getNbArgs() == 1) && x.second.hasPromptedArg())) {

                      twoArgsFunction.add(x.second.getIHMName(), x.second.getKernelName());
                }else {
                      threeArgsFunction.add(x.second.getIHMName(), x.second.getKernelName());
                }
        } 

        BOOST_SPIRIT_DEBUG_NODES((expr_)(or_)(and_)(equal_)(unequal_)(greaterOrEqual_)(lowerOrEqual_)(lower_)(sum_)
                (difference_)(factor_)(division_)(simple)(notOperator_)(andOperator_)(orOperator_)(equalOperator_)(unequalOperator_)

                (sumOperator_)(differenceOperator_)(factorOperator_)(divisionOperator_)(greater_)(lower_)(functions_));

    }

private:

    qi::rule<It, Expression::var(), Skipper> var_, componentValue_, indexValue_, derivedParam_, uploadedParam_, impexParam_, themisParam_, cdaWebParam_;

    qi::rule<It, Expression::ExpressionContainer(), Skipper> not_

        , pow_

	, powerTen_

        , and_

        , or_
        , equal_
        , unequal_
        , sum_
        , difference_
        , factor_
        , division_
        , simple
        , expr_
        ,plusSign_
        ,minusSign_

        ,greater_
        ,greaterOrEqual_
        ,lowerOrEqual_
        ,lower_

	,const_

	,param_
        ,functions_
        ,funArgs_;

    qi::rule<It, Skipper> notOperator_

	, powOperator_

	, powerTenOperator_

        , andOperator_
        , orOperator_

        , equalOperator_
        , unequalOperator_
        , sumOperator_
        , differenceOperator_
        , factorOperator_
        , divisionOperator_
        , greaterOperator_ 
        , greaterOrEqualOperator_ 

        , lowerOrEqualOperator_
	, lowerOperator_
	, argumentSeparator_
        , componentSeparator_;

    qi::symbols<char, std::string> definedConstants;

    qi::symbols<char, std::string> localParams_;

    qi::symbols<char, std::string> twoArgsFunction;
    qi::symbols<char, std::string> oneArgsFunction;

    qi::symbols<char, std::string> threeArgsFunction;

};

}
}

#endif