#!/usr/bin/env node;
const Utils = require('./Utils');

function convertKMtoMiles(x) {
	let y = new Map();
	for (let planet of x.keys()) {
		y.set(planet, Math.trunc(x.get(planet) * 0.621371 + 0.5));
	}
	return y;
}

const main = async () => {
	let planetDiametersInKM = new Map([
		["Mercury", 4879],
		["Venus", 12103],
		["Earth", 12756],
		["Mars", 6794],
		["Jupiter", 142985],
		["Saturn", 120534],
		["Uranus", 51115],
		["Neptune", 49534],
		["Pluto", 2374],
		["Ceres", 946],
		["Eris", 2326],
		["Makemake", 1430]
	]);

	let planetDiametersInMiles = convertKMtoMiles(planetDiametersInKM);
	for (let planet of planetDiametersInMiles.keys()) {
		console.log(planet + " has a diameter of " + planetDiametersInMiles.get(planet) + " miles");
	}
}
main().catch( e => { console.error(e) } );