var addon = require('./build/Release/addon');
var calculations = process.argv[2] || 100000000;

function printResult(type, pi, ms) {
  console.log(type, 'method:')
  console.log('\tπ ≈ ' + pi
  		+ ' (' + Math.abs(pi - Math.PI) + ' away from actual)')
	console.log('\tTook ' + ms + 'ms');
	console.log()
}

function runSync () {
  var start = Date.now();
  // Estimate() will execute in the current thread,
  // the next line won't return until it is finished
	var result = addon.calculateSync(calculations);
  printResult('Sync', result, Date.now() - start)
}

function runAsync () {
  // how many batches should we split the work in to?
	var batches = process.argv[3] || 16;
	var ended = 0;
	var total = 0;
	var start = Date.now();

	function done (err, result) {
		total += result;

    // have all the batches finished executing?
		if (++ended == batches) {
			printResult('Async', total / batches, Date.now() - start)
		}
	}

  // for each batch of work, request an async Estimate() for
  // a portion of the total number of calculations
	for (var i = 0; i < batches; i++) {
		addon.calculateAsync(calculations / batches, done);
	}
}

runSync()
runAsync()
