"use strict";

const Promise = require("bluebird");

module.exports = function asyncWhile(predicate, body) {
	function doTick() {
		return Promise.try(() => {
			return predicate();
		}).then((shouldRun) => {
			if (shouldRun) {
				return Promise.try(() => {
					return body();
				}).then(() => {
					return doTick();
				});
			}
		});
	}

	return doTick();
};