website-scraper/node-website-scraper

import { parseSrcset, stringifySrcset } from 'srcset';

class HtmlImgSrcSetTag {
    constructor (text) {
        this.text = text || '';
        this.imgSrcsetParts = parseSrcset(this.text);
        this.paths = this.imgSrcsetParts.map(imgSrcset => imgSrcset.url);
    }

    getPaths () {
        return this.paths;
    }

    updateText (pathsToUpdate) {
        const imgSrcsetParts = this.imgSrcsetParts;
        pathsToUpdate.forEach((path) => {
            const srcsToUpdate = imgSrcsetParts.filter(imgSrcsetPart => imgSrcsetPart.url === path.oldPath);
            srcsToUpdate.forEach((srcToUpdate) => {
                srcToUpdate.url = path.newPath;
            });
        });
        return stringifySrcset(imgSrcsetParts);
    }
}

export default HtmlImgSrcSetTag;