'use strict';

const Promise = require("bluebird");
const net = require("net");
const defaultValue = require("default-value");

module.exports = function waitForServer(port, options = {}) {
    return new Promise((resolve, reject) => {
        function check() {
            let sock = new net.Socket();
            sock.setTimeout(defaultValue(options.timeout, 50));

            sock
                .on("connect", () => {
                    resolve();
                    sock.destroy();
                })
                .on("timeout", check)
                .on("error", check)
                .connect(port);
        }

        return check();
    });
};