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//- Copyright 2009 National Technology & Engineering Solutions of Sandia, LLC
//- (NTESS). Under the terms of Contract DE-NA0003525 with NTESS, the U.S.
//- Government retains certain rights in this software.
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#ifndef POLYGONFACTORY_H_
#define POLYGONFACTORY_H_

// **** _SYSTEM INCLUDES_ ******************************************************

#include <cstdio>
#include <iostream>
#include <iomanip>
#include <vector>

// use standard library objects
using namespace std;

// **** _LOCAL INCLUDES_ *******************************************************

#include "CPPUtils.h"
#include "GeoTessUtils.h"
#include "GeoTessGreatCircle.h"
#include "IFStreamAscii.h"

// **** _BEGIN GEOTESS NAMESPACE_ **********************************************

namespace geotess {

// **** _FORWARD REFERENCES_ ***************************************************

// **** _CLASS DEFINITION_ *****************************************************

/**
 * \brief Factory method with a static method getPolygon() that returns
 * a pointer to either a Polygon or Polygon3D object.
 *
 * Factory method with static method getPolygon() that returns
 * a pointer to a Polygon or Polygon3D object.
 *
 */
class GEOTESS_EXP_IMP GeoTessPolygonFactory
{
public:

    static GeoTessPolygon* getPolygon(string inputFileName)
    {
        if (inputFileName.find(".kmz", inputFileName.length() - 4) != string::npos
                || inputFileName.find(".kml", inputFileName.length() - 4) != string::npos)
        {
            ostringstream os;
            os << endl << "ERROR in Polygon::constructor" << endl
                    << "Cannot read files in kml or kmz format (Google Earth)." << endl
                    << "GeoTessExplorer has a utility to translate to ascii." << endl;
            throw GeoTessException(os, __FILE__, __LINE__, 10201);
        }

        GeoTessPolygon* polygon = NULL;

        vector<string> records;

        IFStreamAscii input;
        input.openForRead(inputFileName);
        string line;
        while (input.readLine(line))
        {
            line = CPPUtils::uppercase_string(CPPUtils::trim(line));
            if (line.length() > 0 && line.find('#') != 0)
                records.push_back(line);
        }
        input.close();

        if (records[0].find("POLYGON3D") == 0)
        {
            polygon = new GeoTessPolygon3D();
            polygon->loadAscii(records);
        }
        else
        {
            polygon = new GeoTessPolygon();
            polygon->loadAscii(records);
        }

        return polygon;
    }


}; // end class PolygonFactory

} // end namespace geotess

#endif /* POLYGONFACTORY_H_ */
