Turn Amazon reviews to shopify review CSV format

amazon_to_shopify.js

(function () {

    const headerRow = 'product_handle,state,rating,title,author,email,location,body,reply,created_at,replied_at';
    const escapeQuotes = s => s.replace('"', '\\"');
    const fillTemplate = ({ rating, title, author, body, created_at }) => `zenstone-professional-rapid-stone-warmer,published,${rating},"${escapeQuotes(
        title)}","${escapeQuotes(author)}",amzcust@amz.com,,"${escapeQuotes(body)}",,"${escapeQuotes(created_at)}",`;

    function parseReview(review) {
        const ratingContainer = review.querySelector('[data-hook="review-star-rating"]');
        const starClass = Array.from(ratingContainer.classList).find(cls => cls.match(/a-star-(\d)/));
        const rating = starClass[starClass.length - 1];

        const title = review.querySelector('[data-hook="review-title"]').text;
        const author = review.querySelector('a[data-hook="review-author"]').text;
        const created_at = review.querySelector('[data-hook="review-date"]').textContent.replace('on ', '');
        const body = review.querySelector('[data-hook="review-body"]').textContent;

        return fillTemplate({ rating, title, author, body, created_at });
    }

    function download(filename, text) {
        var element = document.createElement('a');
        element.setAttribute('href', 'data:text/plain;charset=utf-8,' + encodeURIComponent(text));
        element.setAttribute('download', filename);

        element.style.display = 'none';
        document.body.appendChild(element);

        element.click();

        document.body.removeChild(element);
    }

    const reviews = Array.from(document.querySelectorAll('[data-hook="review"]')).map(parseReview);
    const output = `${headerRow}\n${reviews.join('\n')}`;

    download('reviews.csv', output);

}());