#include "polygon.h"
#include "circle.h"

#include <iostream>

enum IOState { NORM, ABNORM };

class ShapeFile
{
    std::istream &str;
    
public:
    ShapeFile (std::istream &str_): str (str_) {}
    
    IOState Read (std::auto_ptr<Shape> &dx);
};

IOState ShapeFile::Read (std::auto_ptr<Shape> &dx)
{
    int shape_type;
    str >> shape_type;
    if (str.eof ()) return ABNORM;

    double shape_size;
    str >> shape_size;
    if (str.eof ()) return ABNORM;
    
    if (shape_type == 0)
        dx = std::auto_ptr<Shape> (new Circle (shape_size));
    else
        dx = std::auto_ptr<Shape> (new Polygon (shape_type, shape_size));
    
    return NORM;
}

std::auto_ptr<Shape> max_bounding_box_area (ShapeFile &x)
{
    std::auto_ptr<Shape> max;
    double  max_val = 0;

    std::auto_ptr<Shape> dx;
    IOState sx = x.Read (dx);

    while (sx == NORM)
    {
        double val = dx->bounding_box_area ();
        if (val >= max_val)
        {
            max = dx;
            max_val = val;
        }
        
        sx = x.Read (dx);
    }
    
    return max;
}

int main (int argc, char **argv)
{
    ShapeFile x (std::cin);
    std::auto_ptr<Shape> s = max_bounding_box_area (x);

    if (s.get ())
    {
        std::cout << "A legnagyobb befoglaloteglalapu sikidom: " << s->str () << std::endl
                  << "Ennek befoglalo-teglalapja: " << s->bounding_box_area () << std::endl;
    } else {
        std::cerr << "HIBA: Ures sikidom-lista!" << std::endl;
    }
}