http://call-bill.com washing machine availability notifier

callbill.js

/**
 * visits call-bill.com, logs in and 
 * searches for available washing machines
 * execs whatever is in the exec command when machine is found
 * by default uses OSX "say" command.
 * =====
 * requires puppeteer: npm i puppeteer
 * =====
 */

const puppeteer = require('puppeteer');

const EMAIL = "";
const PASSWORD = "";
const EXEC_INTRO = 'say "Checking up on CallBill"';
const EXEC_FOUND = 'say "Machine {0} is {1}"';
const WAIT_TIME_SECONDS = 60;

(async() => {
    const exec = require('child_process').execSync;

    function delay(time) {
        return new Promise(function(resolve) {
            setTimeout(resolve, time)
        });
    }

    const browser = await puppeteer.launch({
        // headless: false,
    });
    exec(EXEC_INTRO);
    const page = await browser.newPage();
    console.log("Started")
    await page.goto('https://call-bill.com/nl/', {
        waitUntil: ['load', 'networkidle0']
    });

    console.log("On main page");
    await page.click("#navbar > ul.nav.navbar-nav.navbar-right > li.button.login.login-box-open");
    await page.type("#loginbox > div:nth-child(2) > input", EMAIL);
    await page.type("#loginbox > div:nth-child(3) > input", PASSWORD)
    await page.click("#loginbox > div:nth-child(4) > button");
    console.log("Tried to log in. Now waiting for transactions block");
    await page.waitForSelector("div.active_block.WASHING_MACHINE", {
        visible: true
    })
    console.log("Seems like we are in.");
    const MACHINES_TABLE_SELECTOR = "div.wb-modal.pop.show > div > div > div.wb-modal-scroll > table > tbody.filterContent > tr"
    while (true) {
        console.log("Doing check now");
        await page.click("div.active_block.WASHING_MACHINE");
        await page.waitForSelector(MACHINES_TABLE_SELECTOR)
        var results = await page.evaluate(MACHINES_TABLE_SELECTOR => {
            var rows = Array.from(document.querySelectorAll(MACHINES_TABLE_SELECTOR))
            var results = []
            for (var rowi in rows) {
                var row = rows[rowi];
                var id = row.querySelector("td:nth-child(2)").innerText
                var status = row.querySelector("td:nth-child(3) > div > span").innerText;
                results.push({
                    "id": id,
                    "status": status
                })
            }
            return results;
        }, MACHINES_TABLE_SELECTOR);
        for (var entryi in results) {
            var entry = results[entryi];
            console.log(`${entry['id']} - ${entry['status']}`);
            if (entry['status'] != "Occupied")
                exec(EXEC_FOUND.replace("{0}", entry['id']).replace("{1}", entry['status']))
        }
        console.log("Closing modal")
        await page.click("div.wb-modal.pop.show > div > div > div.wb-modal-header > div > span")
        console.log("Waiting 60 seconds");
        await delay(WAIT_TIME_SECONDS * 1000);
    }
})();