/******************************** LICENSE ********************************

 Copyright 2007 European Centre for Medium-Range Weather Forecasts (ECMWF)

 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
 You may obtain a copy of the License at 

    http://www.apache.org/licenses/LICENSE-2.0

 Unless required by applicable law or agreed to in writing, software
 distributed under the License is distributed on an "AS IS" BASIS,
 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.

 ******************************** LICENSE ********************************/

/*! \file EpsgramDecoder.h
    \brief Definition of the Template class EpsgramDecoder.
    
    Magics Team - ECMWF 2005
    
    Started: Mon 19-Sep-2005
    
    Changes:
    
*/

#ifndef EpsJSon_H
#define EpsJSon_H

#include "magics.h"


#include "WrepJSonAttributes.h"

#include "json_spirit.h"
#include "Decoder.h"
#include "Data.h"
#include "UserPoint.h"
#include "DateTime.h"

#include "Matrix.h"
#include <limits>

namespace magics {


struct InputWrep
{
	bool empty() { return steps_.empty(); }
	 map<string, vector<double> > values_;
	 vector<double> steps_;
	 vector<double> levels_;
	 int index(double val) {
		 vector<double>::iterator step = steps_.begin();
		 int index = 0;
		 while ( *step != val ) {
			 ++step;
			 if ( step == steps_.end() ) {
				 return -1; 
			 }
			 index++;
		 }
		 return index;
	}
	void print() {
		 cout << "InputWrep" << endl;
		 string sep = "steps[";
		 for (vector<double>::iterator step = steps_.begin(); step != steps_.end(); ++ step) {
			 cout << sep << *step;
			 sep = ", ";
		 }
		 cout << "]" << endl;
		 for (map< string, vector<double> >::iterator value = values_.begin(); value != values_.end(); ++ value) {
			 string sep = value->first + "[";
			 for (vector<double>::iterator val =  value->second.begin(); val !=  value->second.end(); ++ val) {
			 	std::cout << sep << *val;
			 	sep = ", ";
			 }
			 cout << "]" << endl;
		}
	}
};


class WrepJSon:
			public Data,
			public PointsList,
			public WrepJSonAttributes 
{
public:
	WrepJSon();
	virtual ~WrepJSon();
	
	typedef void (WrepJSon::*Method)(const json_spirit::Value&);
	typedef void (WrepJSon::*Decoder)();
	typedef void (WrepJSon::*TransformationHandler)(Transformation&);
    typedef double (WrepJSon::*HeightCorrection)(double);
    typedef json_spirit::Value (WrepJSon::*MetaMethod)();
	map<string,  Method> methods_;
	map<string,  Decoder> decoders_;
	map<string,  TransformationHandler> transformationHandlers_;
	map<string,  HeightCorrection> heightCorrections_;
	map<string,  MetaMethod> metaMethods_;

	void efi();
	void cdf();
	void eps();
	void basic();
	void data();
	void profile();
	
	void profile(Transformation&);
	void eps(Transformation&);
	void efi(Transformation&);
	void cdf(Transformation&);
	
	void x_values(const json_spirit::Value&);
	void y_values(const json_spirit::Value&);
	void values(const json_spirit::Value&);
	void x_date_values(const json_spirit::Value&);
	void y_date_values(const json_spirit::Value&);

	void location(const json_spirit::Value&);
	void station_name(const json_spirit::Value&);
	void valid_time(const json_spirit::Value&);
	void epsz(const json_spirit::Value&);
	void detz(const json_spirit::Value&);
	void date(const json_spirit::Value&);
    void expver(const json_spirit::Value&);
	void height(const json_spirit::Value&);
	void time(const json_spirit::Value&);

	virtual void parameter(const json_spirit::Value&);
	virtual void eps(const json_spirit::Value&);
	virtual void clim(const json_spirit::Value&);
	virtual void efi(const json_spirit::Value&);
	void dig(const json_spirit::Value&);
	void ignore(const json_spirit::Value&) {}
	void missing(const json_spirit::Value&);
	void mask(const json_spirit::Value&);
	void station(const json_spirit::Value&);
	void metadata(const json_spirit::Value&);
	void temperature_correction(const json_spirit::Value&);
	void points_along_meridian(const json_spirit::Value&);

	json_spirit::Value temperature_correction();
	json_spirit::Value temperature_adjustment();
	json_spirit::Value eps_resolution();
	json_spirit::Value deterministic_resolution();
	json_spirit::Value height();
	json_spirit::Value station_name();
	MatrixHandler& matrix();
	void customisedPoints(const std::set<string>&, CustomisedPointsList&);
	void customisedPoints(const Transformation&, const std::set<string>&, CustomisedPointsList&);

	virtual void set(const map<string, string>& map) 	{ WrepJSonAttributes::set(map);  }
	virtual void set(const XmlNode& node) { WrepJSonAttributes::set(node); }
	
	virtual void visit(Transformation&);
	virtual void visit(TextVisitor&);
	void visit(const XmlNode& node);
		
	virtual void decode();
    
    double correctDetz(double);
    double correctEpsz(double);

    void visit(MetaDataVisitor&);
    void points(const Transformation&, vector<UserPoint>&);
    void customisedPoints(const Transformation& t, const std::set<string>& n, CustomisedPointsList& out, bool all)
    {
       	customisedPoints(t, n, out);
     }
     PointsHandler& points(const Transformation& t, bool);


protected:
     //! Method to print string about this class on to a stream of type ostream (virtual).
	 virtual void print(ostream&) const; 
	 DateTime base_;
	 vector<CustomisedPoint*> points_; 
	 PointsList list_;
     double minx_;
	 double maxx_;
	 double miny_;
	 double maxy_;
	 double shift_;
	 double missing_;
	 double latitude_;
	 double longitude_;
	 double height_;
     double epsz_;
     double detz_;
	 double scaling_factor_;
	 double offset_factor_;
	 double mask_;
	 string station_name_;
	 double station_latitude_;
	 double station_longitude_;
	 string date_;
	 string time_;
	 string file_;
	 string valid_time_;
     string expver_;

	 json_spirit::Value metadata_;
	 InputWrep   values_;
	 InputWrep* current_;
	 InputWrep clim_;
	 map<string, InputWrep> eps_;
	 map<string, InputWrep> efi_;
	 int points_along_meridian_;
	 Matrix matrix_;

	 bool xdate_;
	 DateTime xBase_;
	 bool ydate_;
	 DateTime yBase_;
	 bool regular_;

private:
    //! Copy constructor - No copy allowed
	WrepJSon(const WrepJSon&);
    //! Overloaded << operator to copy - No copy allowed
	WrepJSon& operator=(const WrepJSon&);

// -- Friends
    //! Overloaded << operator to call print().
	friend ostream& operator<<(ostream& s,const WrepJSon& p)
		{ p.print(s); return s; }
};

} // namespace magics
#endif
