#include <iostream>
#include "R2Contour.h"

static void printVertices(
    std::ostream& s, const std::vector<R2Point>& vertices
);

std::ostream& operator<<(std::ostream& s, const R2Polyline& l) {
    s << "R2Polyline(" << std::endl;
    printVertices(s, static_cast<const std::vector<R2Point>&>(l));
    return s;
}

std::ostream& operator<<(std::ostream& s, const R2Contour& c) {
    s << "R2Contour(" << std::endl;
    printVertices(s, static_cast<const std::vector<R2Point>&>(c));
    return s;
}

static void printVertices(
    std::ostream& s, const std::vector<R2Point>& vertices
) {
    for (size_t i = 0; i < vertices.size(); ++i) {
        if (i == 0) {
            s << "    ";
        } else if (i%5 == 0) {
            s << "," << std::endl << "    ";
        } else {
            s << ", ";
        }
        s << vertices[i];
    }
    s << std::endl << ")" << std::endl;
}