amazonPrimeVideoWatchlist.js

asinList = [];
videoList = [];

setInterval(() => {
    const cards = document.querySelectorAll('[data-testid="card"]')
    for (let card of cards) {
        const url = card.querySelector('[href^="/gp/video/detail/"').href;
        const urlMatch = url.match(/\/gp\/video\/detail\/(.+)\/.+$/);
        if (!urlMatch) continue;

        const videoAsin = urlMatch[1];
        const videoTitle = card.dataset.cardTitle;
        const sourceWebpTag = card.querySelector('source[type="image/webp"]');
        const sourceJpegTag = card.querySelector('source[type="image/jpeg"]');
        const sourcePngTag = card.querySelector('source[type="image/png"]');
        let thumbnailSrcset = null;

        if (sourceWebpTag != null) {
            thumbnailSrcset = sourceWebpTag.srcset;
        } else if (sourceJpegTag != null) {
            thumbnailSrcset = sourceJpegTag.srcset;
        } else if (sourcePngTag != null) {
            thumbnailSrcset = sourcePngTag.srcset;
        } else {
            continue; // not loaded yet
        }

        const cardUnentitledParentTag = card.querySelector('._8w2yV3');

        const unentitledTag = cardUnentitledParentTag != null ? cardUnentitledParentTag.querySelector('[data-testid="unentitled-icon"]') : null;
        const unentitled = unentitledTag != null;
        const unentitledText = cardUnentitledParentTag != null ? cardUnentitledParentTag.innerText : null;

        if (!asinList.includes(videoAsin)) {
            asinList.push(videoAsin);
            videoList.push({
                'asin': videoAsin,
                'title': videoTitle,
                'thumbnailSrcset': thumbnailSrcset,
                'unentitled': unentitled,
                'unentitledText': unentitledText,
            });
        }
    }
}, 100);