const puppeteer = require('puppeteer');
let browser = null;
let pages = [];

async function getBrowser() {
    if (browser === null) {
        browser = await puppeteer.launch({
            args: ['--no-sandbox'],
            // headless: false
        });
    }

    return browser;
}

module.exports = async function newPage() {
    const chrome = await getBrowser();
    const page = await chrome.newPage();
    page.setUserAgent(
      'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.88 Safari/537.36'
    );

    pages.push(page);

    return page;
};

const fs = require('fs');
const newPage = require('./browser');

function delay(t = 1000) {
    return new Promise(r => setTimeout(r, t));
}

(async function sendMsg() {
    const page = await newPage();
    const cookiesString = fs.readFileSync('./zalo.json');
    const cookies = JSON.parse(cookiesString);
    await page.setCookie(...cookies);
    await page.goto('https://chat.zalo.me/');

    console.log('Go zalo');

    await delay(2000);
    await page
        .waitForSelector('.avatar');
    await delay(1000);
    await page.click('.avatar');

    await delay(2000);

    await page.waitForSelector('.msg-item');

    await page.waitForSelector('#contact-search-input');
    await page.click('#contact-search-input');
    await page.type('#contact-search-input', 'Dropshipping');

    await delay(1000);
    await page.waitForSelector('#searchResultList');
    await page.click('#searchResultList .item');

    await delay(1000);

    await page.waitForSelector('#richInput');
    await page.click('#richInput > div');

    await delay(1000);

    page.type('#richInput > div', 'msg from puppeteer');
    await delay(1000);
    await page.keyboard.press(String.fromCharCode(13));
    console.log('done');

    await delay(100000);
    page.close();
})();