/******************************** 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 ********************************/

#ifndef ObsTable_H
#define ObsTable_H

#include "magics.h"
#include "ObsItem.h"
#include "PaperPoint.h"
#include "BasicSceneObject.h"

namespace magics {



class ObsTemplate: public vector<ObsItem*>
{
public:
	ObsTemplate(const map<string, string>& def) {
		    map<string, string>::const_iterator val = def.find("columns");
		    columns_ = (val != def.end()) ? atoi(val->second.c_str()) : 3; 
		    val= def.find("rows");
		    rows_ = (val != def.end()) ? atoi(val->second.c_str()) : 3;
		     
	}
	virtual ~ObsTemplate() {}
	void visit(std::set<string>& tokens) const
	{
		for ( const_iterator item = begin(); item != end(); ++item) 
			    (*item)->visit(tokens);
	}
	void set(double apart) const { apart_ = apart; }
	void operator()(CustomisedPoint&, BasicGraphicsObjectContainer&) const;

protected:
	virtual void print(ostream& out) const 
	{ 
		out << "ObsTemplate:[\n";
		for ( const_iterator item = begin(); item != end(); ++item) 
			out << "\t" << *(*item) << "\n";
		out << "\n";
	}
	double           columns_;
	double           rows_;
	mutable vector<PaperPoint> working_;
	mutable double           apart_;
	mutable string          box_;
	
	friend ostream& operator<<(ostream& s,const ObsTemplate& p)
		{ p.print(s); return s; }
};

class ObsTable : public map<string, ObsTemplate*>
{
public:
	ObsTable();
	virtual ~ObsTable();

	void add(const string&, const map<string, string>&);

	static void print()
	{
		if ( !table_ )  table_ = new ObsTable();
	}
	
	static void release() 
	{
		if ( !table_ )  
			delete table_;
	}
		

	static const ObsTemplate& getTemplate(const string type)
	{
		if ( !table_ )  table_ = new ObsTable();
		return table_->get(type);
	}

protected:
     //! Method to print string about this class on to a stream of type ostream (virtual).
	virtual void print(ostream&) const;
	ObsTemplate* current_; 
	double rows_;
	double columns_;

	const ObsTemplate& get(const string&); 

	static ObsTable* table_;

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

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

};

} // namespace magics
#endif
