const puppeteer = require('puppeteer');
const fs        = require('fs');
const fs_extra  = require('fs-extra');
const loader    = require('csv-load-sync');

getScreenshot();

async function getScreenshot() {
    const maxNumberOfSessions = 1;
    let counter = 0;

    await Promise.all(Array.from({length: maxNumberOfSessions}, processArray));
    console.log("All records have been processed.");




    async function processArray() {
        var csv = loader('file.csv');
        for (const item of csv) {
            nextRecord = item;
        }

        if (nextRecord) {
            return shoot(nextRecord.URL, nextRecord.MasterID).then(processArray);
        }


        console.log('Done!');
    }

    async function shoot(url, name) {
        const number = ++counter;
        console.log("Processing record #" + number + ": " + url);

        const browser = await puppeteer.launch({defaultViewport: {width: 1024, height: 768}});
        const page = await browser.newPage();
        await page.goto(url).catch(function(err) {
            // Do something with you error
            console.log(`See error: ${err.message}`);
        });

        await page.screenshot({path: `./${name}.png`});

        await browser.close();
    }
}