index.js

const puppeteer = require('puppeteer');

function sleep(ms) {
    return new Promise(resolve => setTimeout(resolve, ms));
}

(async () => {
  const browser = await puppeteer.launch({headless: false});
  // const browser = await puppeteer.launch();

  let attempts = 0;

  while (attempts < 3) {
    console.log(`attempt ${attempts}`);

    const page = await browser.newPage();
    try {
      console.log('goto');
      await page.goto('https://www.copart.com/auctions/auctionDashboard', {waitUntil: 'networkidle'});

      console.log('waitFor iframe');
      await page.waitFor('#iAuction5');
      console.log('found');

      await page.waitFor(1000);
      let childFrames = await page.mainFrame().childFrames();
      
      if (childFrames.length != 1) {
        console.log('hmm, child frame still not here...');
        await page.waitFor(2000);
        let childFrames = await page.mainFrame().childFrames();

        if (childFrames.length != 1) {
          throw new Error("missing child iframe, throwing error.");
        }
      }

      const childFrame = childFrames[0];

      console.log('child frame found, waiting for auction table to appear');
      await childFrame.waitForSelector('.arAuctiontable');

      console.log('got auction table');

      try {
        await childFrame.waitForSelector('button.arJoinBtn');
      } catch (e) {
        console.log("it doesn't look like there are any live auctions.");
        await browser.close();
        return;
      }

      const buttons = await childFrame.$('button.arJoinBtn');

      consoel.log('buttons: ');
      console.log(buttons);
      // console.log(`${buttons.length} live auctions right now.`);

      // if (buttons.length > 0) {
      //   await page.WaitFor(500);
      //   console.log("since there are live auctions, let's click one...");
      //   buttons.click({delay: 120});
      //   console.log("waiting for descriptions of cars in the lot...");
      //   await childFrame.waitForSelector('div.arDescription');
      //   const descriptions = await childFrame.$('button.arDescription');
      //   console.log(descriptions);
      // }

      await page.waitFor(1000);

      await page.screenshot({path: 'screenshot.png'});

      attempts = 1000;

    } catch (e) {
      console.error('error, retrying after a sec');
      await page.close();
      attempts += 1;

      await sleep(1000);
    }
  }
  await browser.close();
})();