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Amazon Vine Review Queue Fixer

Easily see which reviews are done and pending

// ==UserScript==
// @name         Amazon Vine Review Queue Fixer
// @namespace    http://tampermonkey.net/
// @version      1.0.1
// @description  Easily see which reviews are done and pending
// @author       Vexe
// @match        https://www.amazon.com/vine/vine-reviews*
// @match        https://www.amazon.ca/vine/vine-reviews*
// @icon         https://www.google.com/s2/favicons?sz=64&domain=amazon.com
// @grant        none
// @license      All Rights Reserved
// ==/UserScript==

(function() {
    'use strict';

    // function to get elements and update them
    function getDone() {
        // elements
        var els = document.getElementsByName("vvp-reviews-table--review-item-btn");

        for(var i = 0; i < els.length; i++) {
            getData(els[i]);
        }
    }

    // delay constant
    const delay = ms => new Promise(res => setTimeout(res, ms));

    // async function to get target content to determine if review is already submitted
    async function getData(el) {
        try {
            // A href
            var urlx = el.href;
            // wait 5 seconds
            await delay(5000);
            // async http responseawait delay(5000);
            const response = await fetch(urlx);
            // shit failed
            if (!response.ok) {
                throw new Error('Network response was not ok');
            }
            // get response body (full page markup)
            const data = await response.text();

            // regex pattern to find the json we care about
            var rgx = /(?<=^\s+window\.P\.initialPageState = )(.+)(?=;$)/gm;

            // get regex match
            var jraw = data.match(rgx);
            // deserialize into JSON object
            var json = JSON.parse(jraw);

            // if there's a title value, this review exists
            if (json.reviewForm.title) {
                // add css class
                el.classList.add('done');
                // edit button text
                el.innerText = 'Edit review';
                // edit other text
                el.parentElement.parentElement.parentElement.previousElementSibling.innerText = 'Review pending approval';
            }
        } catch (error) {
            // shit broke
            console.error(error);
        }
    }

    // add css to head
    var head = document.getElementsByTagName('head')[0];
    var s = document.createElement('style');
    s.appendChild(document.createTextNode('.done { background-color: #ffed94; font-style: italic; color: #666 !important;}'));
    head.appendChild(s);

    // add button to force script to run, just in case
    var ospan = document.createElement('span');
    ospan.id = 'vvp-reviews-button--runscript';
    ospan.className = 'a-button a-button-normal a-button-toggle';

    var ispan = document.createElement('span');
    ispan.classList = ('a-button-inner');

    var ayy = document.createElement('a');
    ayy.onclick = getDone;
    ayy.classList = ('a-button-text');
    ayy.innerText = 'Run Script';

    ispan.appendChild(ayy);
    ospan.appendChild(ispan);

    // get the target div
    var btns = document.getElementById('vvp-review-button-container');
    btns.appendChild(ospan);

    // run the script
    getDone();

})();