#include <fstream>

#include <iostream>

#include <lemon/xy.h>

#include <lemon/maps.h>

#include <lemon/error.h>

#include <lemon/list_graph.h>

#include <lemon/graph_reader.h>

#include <lemon/graph_utils.h>

using namespace lemon;

typedef ListGraph Graph;

typedef xy<double> Coordinates;

typedef Graph::NodeMap<Coordinates> CoordinatesMap;

typedef Graph::Node Node;

typedef Graph::EdgeIt EdgeIt;

typedef Graph::NodeIt NodeIt;

class CoordReaderMap: public MapBase <Node, double>

{

    CoordinatesMap & cm;

    char xoy;

public:

    CoordReaderMap(char xory, CoordinatesMap & coordmap): cm(coordmap)

    {

	switch(xory)

	{

	    case 'x':

	    case 'y':

		xoy=xory;

		break;

	    default:

		throw UninitializedParameter() ;

	}

    }

    void set(Node node, double coord)

    {

	switch(xoy)

	{

	    case 'x':

		cm[node].x=coord;

		break;

	    case 'y':

		cm[node].y=coord;

		break;

	    default:

		throw UninitializedParameter() ;

	}

    }

};

int main(void)

{

    Graph g;

    CoordinatesMap cm(g);

    CoordReaderMap xreader('x',cm);

    CoordReaderMap yreader('y',cm);

    std::ifstream is("graphocska.lemon");

    GraphReader<Graph> reader(is, g);

    reader.addNodeMap("coordinates_x", xreader);

    reader.addNodeMap("coordinates_y", yreader);

    reader.run();

    std::cout << "Megvagyok" << std::endl;

    for (NodeIt i(g); i!=INVALID; ++i)

	std::cout << " " << g.id(i) << " " << cm[i];

    std::cout << std::endl;

    return 0;

}