const puppeteer = require('puppeteer-extra')
const pluginStealth = require('puppeteer-extra-plugin-stealth')
puppeteer.use(pluginStealth())


async function main() {
    const browser = await puppeteer.launch({
        headless: false,
        defaultViewport: null,
        executablePath: 'C:\\c-dev\\chrome.exe'
    })
    const [page] = await browser.pages()
    await page.goto('https://www.monotaro.id/s000009132.html', {timeout: 0, waitUntil: 'domcontentloaded'})
    await page.waitForSelector('#product-attribute-specs-table', {timeout: 0})
    const berat = await page.evaluate(() => {
        let b = 0
        const selector_head = '#product-attribute-specs-table tbody tr:nth-child({}) th'
        const selector_body = '#product-attribute-specs-table tbody tr:nth-child({}) td'
        let i = 1
        document.querySelectorAll('#product-attribute-specs-table tbody tr').forEach(el => {
            const data = {
                name: document.querySelector(selector_head.replace('{}', i)).innerText,
                value: document.querySelector(selector_body.replace('{}', i)).innerText
            }
            if(data.name == 'Berat (Kg)') b = data.value.match(/^[0-9]*\.?[0-9]*$/)[0]
            i+=1
        })
        return b
    })
    console.log(berat)
}

main()